Refrigerating device with adjustable image projection area

Abstract

The invention discloses a refrigerating device with an adjustable image projection area, which comprises a box body and a door body connected to the box body, and further comprises a telescopic rod and a projection lens, the length of the telescopic rod is adjustable, and the telescopic rod is electrically controlled. One end of the telescopic rod is rotationally connected to the door body, and the projection lens is fixed to the other end of the telescopic rod. The telescopic rod has a first state in which the telescopic rod is folded to the door body and a second state in which the telescopic rod is opened until the projection lens leaves the door body and projects an image towards the door body; according to the refrigerating device, the projection lens is arranged on the door body through the telescopic rod, the display range of images projected by the projection lens on the surface of the door body can be adjusted through electric telescopic adjustment of the telescopic rod, and the requirements of different users for the size of a display area can be well met.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration, and particularly to a refrigeration device with adjustable image projection area. Background Art

[0002] Refrigerators have a wide range of applications in household and commercial use due to their characteristic of maintaining a constant low temperature. In addition to the basic refrigeration function, in recent years, businesses have increasingly emphasized the user experience of refrigerators, such as changes in the display experience. Due to factors such as cost and aesthetics, the traditional display interface of refrigerators can no longer meet modern usage requirements. With the progress of technology, projection display solutions have emerged in recent years. However, existing projection display solutions have various limitations or defects in terms of applicability, stability, safety, and aesthetics that conflict with and contradict the actual usage scenarios, such as not conforming to usage habits, human-machine mismatch, and being divorced from reality. These limitations or defects can cause problems such as inoperability, wasted space, wasted cooling capacity, increased energy consumption, cumbersome operation, inconvenient use, easy damage, strange visual effects, and being unreasonable. In addition, when existing refrigerators implement image projection, the size of the display area is fixed, and the single-size display method cannot meet the needs of different users.

[0003] In view of this, it is necessary to design a projection solution that does not interfere with the normal function of the refrigerator, does not cause other greater problems, is easy to operate and conforms to habits, and is neat and beautiful to solve or avoid the above problems. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To achieve the above object, the present invention provides a refrigeration device with adjustable image projection area, and its specific design is as follows.

[0005] A refrigeration device with adjustable image projection area includes a box body and a door body connected to the box body. The refrigeration device further includes a telescopic rod and a projection lens; the length of the telescopic rod is adjustable and is electrically controlled; one end of the telescopic rod is rotatably connected to the door body, and the other end is fixed with the projection lens; the telescopic rod has a first state of being folded onto the door body and a second state of being opened so that the projection lens leaves the door body and projects an image towards the door body.

[0006] Further, the telescopic rod includes a sleeve portion and a rod body portion that telescopically extends relative to the sleeve portion. One end of the sleeve portion away from the rod body portion is rotatably connected to the door body, and the end of the rod body portion away from the sleeve portion is fixed with the projection lens.

[0007] Further, a groove is provided on the door body. When the telescopic rod is in the first state, the telescopic rod is received in the groove; when the telescopic rod is in the second state, the end of the telescopic rod fixed with the projection lens is located outside the groove.

[0008] Furthermore, the refrigeration device further has a locking assembly, and the locking assembly has a locked state for locking the telescopic rod to keep the telescopic rod in the first state and an unlocked state for releasing the locked state to enable the telescopic rod to rotate.

[0009] Furthermore, the refrigeration device further has a driving member for driving the telescopic rod to rotate so as to switch from the first state to the second state.

[0010] Furthermore, one end of the telescopic rod is rotatably connected to the door body through a rotating shaft, and the driving member is a torsion spring sleeved on the rotating shaft.

[0011] Furthermore, when the telescopic rod switches from the first state to the second state, the rotation angle of the telescopic rod is an acute angle or an obtuse angle.

[0012] Furthermore, a stop block is provided on the door body, and the stop block is used for abutting against the telescopic rod to limit further rotation of the telescopic rod when the telescopic rod rotates to the second state.

[0013] Furthermore, the refrigeration device further has a projection control switch for controlling the opening or closing of the projection lens. The projection control switch is arranged on the rotation path of the telescopic rod. During the process of the telescopic rod switching from the first state to the second state, the telescopic rod triggers the projection control switch to start the projection lens.

[0014] Furthermore, the refrigeration device further has a telescopic control switch for controlling the telescopic movement of the telescopic rod. The telescopic control switch has a first working position for controlling the telescopic rod to extend, a second working position for controlling the telescopic rod to retract, and a third working position for stopping the telescopic movement.

[0015] The beneficial effects of the present invention are as follows: For the refrigeration device with adjustable image projection area provided by the present invention, the projection lens is arranged on the door body through the telescopic rod. Through the electric telescopic adjustment of the telescopic rod, the display range of the image projected by the projection lens on the door body surface can be adjusted, which can better meet the requirements of different users for the size of the display area. In addition, since the projection display area is arranged on the outer surface of the door body, there is no need to open the door body to view, and it does not cause any disturbance to the existing refrigeration balance inside the refrigerator, and will not cause cold loss and energy waste. When the door body rotates, the projection lens and the projected image rotate together with the door body, which will not cause the projection lens to move relative to the projection interface, thereby interfering with the projection, ensuring that while the refrigerator is in use, it is convenient for the user to observe the refrigerator data displayed by the projected image. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained according to the provided drawings.

[0017] Figure 1 The figure shows a three-dimensional schematic diagram of the first embodiment of the refrigeration device of the present invention;

[0018] Figure 2 As shown is Figure 1 several schematic diagrams of the cooperation states of the telescopic rod, the projection lens and the door body in

[0019] Figure 3 the projection diagrams of the telescopic rod in two different telescopic states;

[0020] Figure 4 The figure shows a three-dimensional schematic diagram of the second embodiment of the refrigeration device of the present invention;

[0021] Figure 5 As shown is Figure 4 several schematic diagrams of the cooperation states of the telescopic rod, the projection lens and the door body in

[0022] Figure 6 The figure shows a three-dimensional schematic diagram of the third embodiment of the refrigeration device of the present invention;

[0023] Figure 7 As shown is Figure 6 several schematic diagrams of the cooperation states of the telescopic rod, the projection lens and the door body in

[0024] Figure 8 The figure shows a three-dimensional schematic diagram of the fourth embodiment of the refrigeration device of the present invention;

[0025] Figure 9 As shown is Figure 8 several schematic diagrams of the cooperation states of the telescopic rod, the projection lens and the door body in

[0026] In the figure, 11 is the box body, 12 is the door body, 120 is the groove, 121 is the projection display area, 10 is the stop block, 200 is the telescopic rod, 21 is the sleeve part, 22 is the rod body part, 20 is the rotating shaft, and 300 is the projection lens. Detailed implementation manners

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Reference Figure 1 , which shows a three-dimensional schematic diagram of the first embodiment of the refrigeration device with adjustable image projection area according to the present invention. As shown in the figure, the refrigeration device includes a box body 11 and a door body 12 connected to the box body 11. In combination with Figure 1 , Figure 2 shown, the refrigeration device further includes a telescopic rod 200 and a projection lens 300; wherein, the length of the telescopic rod 200 is adjustable and electrically controlled; one end of the telescopic rod 200 is rotatably connected to the door body 12, and the other end is fixed with the projection lens 300. In the present invention, the telescopic rod 200 has a first state of being folded to the door body 12 and a second state of being opened so that the projection lens 300 leaves the door body 12 and projects an image towards the door body 12.

[0029] As Figure 2 -(a) shows, the telescopic rod 200 is in the first state of being folded to the door body 12; when the user needs to use the projection, the telescopic rod 200 can be rotated to the open state as shown in Figure 2 -(b); and then the telescopic rod 200 is adjusted to a suitable length for the projection lens 300 to project an image onto the projection display area 121 on the door body 12. At this time, as shown in Figure 2 -(c), the telescopic rod 200 is in the second state.

[0030] It is relatively easy to understand that in the present invention, since the length of the telescopic rod 200 is adjustable and electrically controlled, the telescopic rod 200 can be controlled at the length required by the user through an electric control method, and the operation is simple and easy. In the specific implementation process, the telescopic rod 200 can be driven to expand and contract by a linear motor, a lead screw drive, or other drive methods, which will not be elaborated one by one here.

[0031] In the refrigeration device with adjustable image projection area provided by the present invention, in the specific implementation process, the projection lens 300 is arranged on the door body through the telescopic rod 200. When the telescopic rod 200 is in the second state, by electrically expanding and contracting the telescopic rod 200, the display range of the image projected by the projection lens 300 on the surface of the door body 12 can be adjusted, which can better meet the requirements of different users for the size of the display area. When the telescopic rod 200 is in the first state, the appearance of the door body 12 is beautiful and tidy, and the probability of damage due to collision during the handling or use of the refrigeration device can be effectively reduced.

[0032] Specific reference Figure 3As shown Figure 3 -(In Figure (a)), the telescopic rod 200 is not extended, its length is L1, the distance between the projection lens 300 and the surface of the door body 12 is H1, and the projection width of the projection lens 300 is D1; Figure 3 -(In Figure (b)), the telescopic rod 200 extends a certain length, its length is L2, the distance between the projection lens 300 and the surface of the door body 12 is H2, and the projection width of the projection lens 300 is D2. It is relatively easy to know according to similar triangles that D2 / D1 = H2 / H1 = L2 / L1, that is, the display range of the projection image of the projection lens 300 on the surface of the door body 12 is positively correlated with the telescopic length of the telescopic rod 200.

[0033] In addition, since the projection display area 121 is arranged on the outer surface of the door body 12, there is no need to open the door body 12 for viewing, and it will not cause any disturbance to the existing refrigeration balance inside the refrigerator, nor will it cause cold loss and energy waste; when the door body 12 rotates, the projection lens 300 and the projection image rotate together with the door body 12, which will not cause the projection lens 300 to move relative to the projection interface, thereby interfering with the projection, ensuring that while the refrigerator is in use, it is convenient for the user to observe the refrigerator data displayed by the projection image. At the same time, since the display interface is the front panel of the door body 12, there is no need to add other special display components. In the specific implementation process, the specific setting position of the projection display area can be adapted to the setting position of the display board of an ordinary refrigerator, which conforms to human-computer interaction and enhances the user experience.

[0034] Refer to Figure 2 As shown, in this specific embodiment, the telescopic rod 200 includes a sleeve portion 21 and a rod body portion 22 that telescopically arranges relative to the sleeve portion 21. One end of the sleeve portion 21 away from the rod body portion 22 is rotatably connected to the door body 12, and a projection lens 300 is fixed to one end of the rod body portion 22 away from the sleeve portion 21.

[0035] As a further preference of the present invention, in some embodiments, refer to Figure 1 、 Figure 2 As shown, a groove 120 is provided on the door body 12. When the telescopic rod 200 is in the first state, the telescopic rod is received in the groove 120; when the telescopic rod 200 is in the second state, the end of the telescopic rod 200 fixed with the projection lens 300 is located outside the groove 120. Based on the setting of the groove 120, when the telescopic rod 200 is in the first state, the refrigeration device door body 12 has a more tidy appearance, and the probability of damage due to collision during the handling or use of the refrigeration device can be maximally avoided.

[0036] In still other embodiments of the present invention, the refrigeration device further has a locking assembly (not shown in the figure), and the locking assembly has a locked state of locking the telescopic rod 200 to keep the telescopic rod 200 in the first state and an unlocked state of unlocking to enable the telescopic rod 200 to rotate.

[0037] In a specific embodiment, the locking component is a press-unlock type locking component. That is, when pressing the telescopic rod 200 received therein in the direction towards the groove 120, the locking component will switch from the locked state to the unlocked state. At this time, the telescopic rod 200 can rotate freely relative to the inside of the groove 120. It can be understood that the press-unlock type locking component can adopt a press-unlock mechanism in the prior art, as long as the locking component can switch from the locked state to the unlocked state when pressing the telescopic rod 200 in the direction towards the groove 120.

[0038] Furthermore, the refrigeration device further has a driving member for driving the telescopic rod 200 to rotate so as to switch from the first state to the second state. In the specific implementation process, one end of the telescopic rod 200 is rotatably connected to the door body 12 through a rotating shaft 20, and the driving member involved can be a torsion spring (not shown in the figure) sleeved on the rotating shaft 20.

[0039] It can be understood that in the above embodiments where the refrigeration device has both a locking component and a driving member at the same time, when the telescopic rod 200 is in the first state, the locking force of the locking component on the telescopic rod 200 is greater than the driving force of the driving member on the telescopic rod 200. Thus, the telescopic rod 200 can be stably in the first state. And when the locking component is in the unlocked state, the driving member is not restricted by the locking component. Under the action of its own elastic restoring force, the telescopic rod 200 rotates relative to the door body 12, driving the projection lens 300 to reach the projection position.

[0040] In some embodiments of the present invention with higher automation requirements, the driving member can also be a motor. That is, the action of the telescopic rod 200 switching from the first state to the second state is driven by the motor. At this time, the motor can also constitute a locking component. That is, the motor can drive and rotate the telescopic rod 200 and hold the telescopic rod 200 in the first state or the second state through rotation, and it has the dual functions of a locking component and a driving member.

[0041] In the present invention, when the telescopic rod 200 switches from the first state to the second state, the rotation angle of the telescopic rod 200 is an acute angle or an obtuse angle.

[0042] Refer to Figure 1 、 Figure 2 In the shown embodiment, in this specific embodiment, the rotation angle of the telescopic rod 200 is an obtuse angle. After the telescopic rod 200 rotates to the projection angle, the projection lens 300 projects on the projection display area on the surface of the door body 12 in a front projection manner. That is, at this time, the projection axis line of the projection lens 300 is perpendicular to the surface of the door body 12.

[0043] Refer to Figure 4 、 Figure 5 As shown, compared with Figure 1 、 Figure 2Different from the embodiments shown, in this embodiment, the projection lens 300 projects onto the projection display area on the surface of the door body 12 in an oblique projection manner, that is, at this time, the projection axis line of the projection lens 300 is inclined relative to the surface of the door body 12.

[0044] Reference Figure 6 、 Figure 7 As shown, different from Figure 1 、 Figure 2 the embodiments shown, in this embodiment, the rotation angle of the telescopic rod 200 is an acute angle, and the projection lens 300 also projects onto the projection display area on the surface of the door body 12 in a front projection manner.

[0045] Reference Figure 8 、 Figure 9 As shown, different from Figure 6 、 Figure 7 the embodiments shown, in this embodiment, the projection lens 300 projects onto the projection display area on the surface of the door body 12 in an oblique projection manner.

[0046] During the specific implementation process, as shown in the figure, a stop block 10 is provided on the door body 12. The stop block 10 is used to abut against the telescopic rod 200 to limit the further rotation of the telescopic rod 200 when the telescopic rod 200 rotates to the second state. In other words, the stop block 100 is located on the rotation path of the telescopic rod 200. When the telescopic rod 200 rotates and opens to a set angle (i.e., the rotation angle described above), the stop block 100 can prevent the further rotation of the telescopic rod 200. Based on the setting of the stop block 10, it can be ensured that the telescopic rod 200 accurately rotates to a position suitable for projection.

[0047] In some embodiments of the present invention, the refrigeration device further has a projection control switch (not shown in the figure) for controlling the opening or closing of the projection lens 300. The projection control switch is arranged on the rotation path of the telescopic rod 200. During the process of the telescopic rod 200 switching from the first state to the second state, the telescopic rod 200 triggers the projection control switch to start the projection lens 300.

[0048] In a specific implementation process, the setting position of the projection control switch can be adapted to the position of the stop block 10 involved in the above embodiments. In this way, when the telescopic rod 200 rotates to the second state, the projection control switch can be triggered, thereby controlling the opening of the projection lens 300; correspondingly, when the telescopic rod 200 switches from the second state to other states, it can also move away from the projection control switch, thereby controlling the closing of the projection lens 300.

[0049] In this embodiment, using the rotation action of the telescopic rod 200 to implement the power-on and power-off operations of the control circuit of the projection lens 300 can simplify the user operation.

[0050] In some other embodiments of the present invention, the refrigeration device further has a telescopic control switch (not shown in the figure) for controlling the telescopic movement of the telescopic rod 200. The telescopic control switch has a first working position for controlling the extension of the telescopic rod, a second working position for controlling the retraction of the telescopic rod, and a third working position for stopping the telescopic movement. It is relatively easy to understand that based on the control of different working positions of the telescopic control switch, the telescopic rod 200 can be relatively easily adjusted to the length required by the user.

[0051] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0052] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent embodiments or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A refrigeration device with adjustable image projection area, comprising a box body and a door body connected to the box body, Characterized in that, The refrigeration device further comprises a telescopic rod and a projection lens; the length of the telescopic rod is adjustable and electrically controlled; one end of the telescopic rod is rotatably connected to the door body, and the other end is fixed with the projection lens; the telescopic rod has a first state of being folded onto the door body and a second state of being opened so that the projection lens leaves the door body and projects an image towards the door body.

2. The refrigeration device with adjustable image projection area according to claim 1, Characterized in that, The telescopic rod comprises a sleeve part and a rod body part telescopically arranged relative to the sleeve part. One end of the sleeve part away from the rod body part is rotatably connected to the door body, and the end of the rod body part away from the sleeve part is fixed with the projection lens.

3. The refrigeration device with adjustable image projection area according to claim 1 or 2, Characterized in that, A groove is provided on the door body. When the telescopic rod is in the first state, the telescopic rod is received in the groove; when the telescopic rod is in the second state, the end of the telescopic rod fixed with the projection lens is located outside the groove.

4. The refrigeration device with adjustable image projection area according to claim 1 or 2, Characterized in that, The refrigeration device further has a locking component, and the locking component has a locked state of locking the telescopic rod to keep the telescopic rod in the first state and an unlocked state of releasing the locked state to enable the telescopic rod to rotate.

5. The refrigeration device with adjustable image projection area according to claim 1 or 2, Characterized in that, The refrigeration device further has a driving member for driving the telescopic rod to rotate so as to switch from the first state to the second state.

6. The refrigeration device with adjustable image projection area according to claim 5, Characterized in that, One end of the telescopic rod is rotatably connected to the door body through a rotating shaft, and the driving member is a torsion spring sleeved on the rotating shaft.

7. The refrigeration device with adjustable image projection area according to claim 1 or 2, Characterized in that, When the telescopic rod switches from the first state to the second state, the rotation angle of the telescopic rod is an acute angle or an obtuse angle.

8. The refrigeration device with adjustable image projection area according to claim 7, Characterized in that, A stop block is provided on the door body, and the stop block is used to abut against the telescopic rod to limit further rotation of the telescopic rod when the telescopic rod rotates to the second state.

9. The refrigeration device with adjustable image projection area according to claim 1 or 2, Characterized in that, The refrigeration device further has a projection control switch for controlling the opening or closing of the projection lens. The projection control switch is arranged on the rotation path of the telescopic rod. During the process of the telescopic rod switching from the first state to the second state, the telescopic rod triggers the projection control switch to start the projection lens.

10. The refrigeration device with adjustable image projection area according to claim 1 or 2, Characterized in that, The refrigeration device further has a telescopic control switch for controlling the telescopic movement of the telescopic rod. The telescopic control switch has a first working position for controlling the extension of the telescopic rod, a second working position for controlling the retraction of the telescopic rod, and a third working position for stopping the telescopic movement.

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