Anti-collision detection structure and washing machine

Abstract

The utility model relates to an anti-collision detection structure and a washing machine. The anti-collision detection structure comprises a box body, an upper cover and a first motor, the upper cover is rotationally connected to the box body, and the first motor is arranged on the box body and can drive the upper cover to rotate; one of the box body and the upper cover is provided with a receiver, and the other one of the box body and the upper cover is provided with an emitter corresponding to the receiver; one of the receivers and the transmitter is further provided with a second motor, the second motor is electrically connected with the first motor, and the second motor can drive the receiver or the transmitter to rotate according to the rotation angle of the first motor, so that the receiver and the transmitter directly face each other all the time; according to the anti-collision detection structure, the emitter is driven by the second motor to rotate, so that the emitter always faces the receiver in the falling closing process of the upper cover, real-time detection in the falling closing process of the upper cover is achieved, the upper cover is prevented from hurting a user in the falling process, and the safety of the anti-collision detection structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to washing machines, in particular to an anti-collision detection structure and a washing machine. Background Art

[0002] When users take out washed clothes from the washing machine, they often need to bend over to pick up the clothes from the inner drum of the washing machine. During this process, the upper cover of the washing machine may fall down because the user touches the washing machine or is not fully opened. After the upper cover falls down, whether it falls directly or stops in the middle, there are safety risks. The former may directly hit the user's head, and the latter may cause the user to hit the upper cover when raising his head.

[0003] At present, in order to prevent the upper cover from falling, damping is added to the upper cover shaft; however, the damping can only prevent the upper cover from falling directly, and it may still fall a certain height, and there is still the risk of the latter situation mentioned above; in addition, after long-term use, the damping will gradually fail, making the upper cover's descending speed uncontrollable. Utility Model Content

[0004] Based on this, it is necessary to provide an anti-collision detection structure and a washing machine that can avoid the safety risk caused by the upper cover falling when the user takes out the clothes from the washing machine.

[0005] The present application first provides an anti-collision detection structure, comprising a box body, an upper cover and a first motor, wherein the upper cover is rotatably connected to the box body, and the first motor is disposed in the box body and can drive the upper cover to rotate;

[0006] One of the box and the upper cover is provided with a receiver, and the other is provided with a transmitter corresponding to the receiver;

[0007] One of them is also provided with a second motor, which is electrically connected to the first motor. The second motor can drive the receiver or the transmitter to rotate according to the rotation angle of the first motor, so that the receiver and the transmitter are always facing each other.

[0008] In some embodiments, the box is provided with the receiver, and the upper cover is provided with the transmitter and the second motor.

[0009] In some embodiments, the upper cover is provided with a transmitting screen, a plurality of the transmitters are provided on the transmitting screen, the second motor can drive the transmitting screen to rotate, and the box body is provided with a plurality of the receivers corresponding to each of the transmitters.

[0010] In some embodiments, the emitters are arranged at equal intervals in a direction parallel to the rotation axis of the upper cover.

[0011] In some embodiments, the transmitter and the second motor are both disposed on an end surface of one side of the upper cover close to the box body, and the receiver is disposed on an end surface of one side of the box body close to the upper cover.

[0012] In some embodiments, a receiving groove is formed on one end surface of the upper cover close to the box body, and the transmitter and the second motor are both disposed in the receiving groove.

[0013] In some embodiments, the upper cover is provided with a transmitting screen, and a plurality of the transmitters are provided on the transmitting screen. One end of the transmitting screen is fixed to the driving shaft of the second motor, and the other end is rotatably connected to the inner wall of the accommodating groove.

[0014] In some embodiments, the transmitter and the receiver are respectively located at one end of their respective end surfaces away from the rotation axis of the upper cover.

[0015] In some embodiments, an inner barrel and a sensor capable of weighing the weight of the inner barrel are disposed in the box, and the sensor is electrically connected to the first motor.

[0016] A second aspect of the present application provides a washing machine, comprising the above-mentioned anti-collision detection structure.

[0017] The above-mentioned anti-collision detection structure can send a signal to the receiver through the transmitter to detect whether the user is between the upper cover and the box body, and only drive the upper cover to close through the first motor when the user is not detected, so as to avoid harming the user; in addition, the second motor can drive the transmitter to rotate so that the transmitter is always facing the receiver during the process of the upper cover falling and closing, thereby realizing real-time detection during the process of the upper cover falling and closing, avoiding the upper cover from harming the user during the falling process, and further increasing the safety of the anti-collision detection structure of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of the anti-collision detection structure of this application;

[0019] Figure 2 for Figure 1 A three-dimensional image from another angle;

[0020] Figure 3 for Figure 1 Left view of .

[0021] Figure numerals: 10, box body; 20, upper cover; 21, accommodating groove; 30, first motor; 41, receiver; 42, transmitter; 43, second motor; 44, transmitting screen. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0028] Please combine Figure 1 as well as Figure 2 As shown, the present application first provides an anti-collision detection structure, including a box body 10, an upper cover 20 and a first motor 30, the upper cover 20 is rotatably connected to the box body 10, the first motor 30 is arranged on the box body 10 and can drive the upper cover 20 to rotate; one of the box body 10 and the upper cover 20 is provided with a receiver 41, and the other is provided with a transmitter 42 corresponding to the receiver 41; and one of them is also provided with a second motor 43, the second motor 43 is electrically connected to the first motor 30, and the second motor 43 can drive the receiver 41 or the transmitter 42 to rotate according to the rotation angle of the first motor 30, so that the receiver 41 and the transmitter 42 are always facing each other.

[0029] In the present application, the transmitter 42 can send a signal to the receiver 41 to detect whether the user is between the upper cover 20 and the box body 10, and the upper cover 20 is driven to close by the first motor 30 only when the user is not detected to avoid harming the user; in addition, the second motor 43 can drive the transmitter 42 to rotate so that the transmitter 42 is always facing the receiver 41 during the process of the upper cover 20 falling and closing, thereby realizing real-time detection during the process of the upper cover 20 falling and closing, avoiding the upper cover 20 from harming the user during the falling process, and further increasing the safety of the anti-collision detection structure of the present application.

[0030] Specifically, if the receiver 41 receives a signal sent by the transmitter 42, it means that the user has taken out the clothes and left the inner barrel of the washing machine, and the first motor 30 drives the upper cover 20 to close; otherwise, it means that the user is still between the upper cover 20 and the box body 10, and the first motor 30 drives the upper cover 20 to keep hovering.

[0031] For more details, please combine Figure 1 as well as Figure 3 As shown, in some embodiments, the box body 10 is provided with a receiver 41, and the upper cover 20 is provided with a transmitter 42 and a second motor 43. Taking this embodiment as an example:

[0032] b is the distance from the rotation center axis of the upper cover 20 to the transmitter 42, c is the distance from the rotation center axis of the upper cover 20 to the receiver 41, a is the distance from the transmitter 42 to the receiver 41, φ is the angle value of the opening angle A of the upper cover 20, α is the angle value of the angle C between the line between the transmitter 42 and the receiver 41 and the upper cover 20, and β is the angle value of the angle between the plane where the transmitter 42 is located (perpendicular to the direction of the transmitter 42) and the upper cover 20;

[0033] Since b and c are fixed sides with known lengths, the angle φ can be determined by the Hall sensor in the first motor 30 and is also a known quantity. Therefore, the angle β can be obtained according to the cosine theorem, and then the angle of the transmitter 42 can be adjusted by the second motor 43 to ensure that the transmitter 42 is facing the receiver 41 to improve the detection accuracy.

[0034] The specific calculation process of β is as follows:

[0035] β=90°-α;

[0036] By the cosine theorem c 2 =a 2 +b 2 -2ab·cosC, we can see that

[0037]

[0038] Then using the law of cosines or the law of sines,

[0039] a / sinA=b / sinB=c / sinC,

[0040]

[0041] Substituting ① into the formula, we can see that

[0042]

[0043] therefore,

[0044]

[0045] In summary, according to formula ② and the angle of φ, β can be adjusted and calculated to be the angle β between the plane where the emitter 42 is located and the upper cover 20;

[0046] During the process of the upper cover 20 rotating and closing, by calculating the β value in real time, the transmitter 42 can be adjusted in real time through the second motor 43 to face the receiver 41, so as to ensure the detection accuracy during the closing process of the upper cover 20.

[0047] In some embodiments, the transmitter 42 is a laser transmitter and the receiver 41 is a laser receiver.

[0048] In some embodiments, the anti-collision detection structure also includes a central processing unit, and the first motor 30 and the second motor 43 are both electrically connected to the central processing unit. After the first motor 30 sends the angle φ of the opening angle A of the upper cover 20 to the central processing unit, the central processing unit calculates the angle β between the plane where the transmitter 42 is located and the upper cover 20, and sends the β value to the second motor 43. The second motor 43 drives the transmitter 42 to rotate according to the β value to ensure that the transmitter 42 is always facing the receiver 41.

[0049] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the upper cover 20 is provided with a transmitting screen 44, a plurality of transmitters 42 are provided on the transmitting screen 44, the second motor 43 can drive the transmitting screen 44 to rotate, and the box body 10 is provided with a plurality of receivers 41 corresponding to each transmitter 42; the angle β between the plane where the transmitter 42 is located and the upper cover 20 is the angle between the transmitting screen 44 and the upper cover 20.

[0050] Multiple transmitters 42 and corresponding multiple receivers 41 can increase detection accuracy, avoid detection omissions due to the user being in the gap between the transmitters 42, and further improve the detection accuracy of the anti-collision detection structure of the present application.

[0051] In some embodiments, when each receiver 41 receives a signal from the corresponding transmitter 42 , the first motor 30 drives the upper cover 20 to close.

[0052] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the emitters 42 are arranged at equal intervals along a direction parallel to the rotation axis of the upper cover 20.

[0053] Preferably, five emitters 42 are arranged at equal intervals on the emission screen 44. The five emitters 42 can meet the detection requirements of users of washing machines of most sizes, while having high detection accuracy and relatively low equipment cost.

[0054] Of course, in some other embodiments, the setting density of the transmitters 42 can be increased or decreased according to actual needs; for example, if it is necessary to avoid the possibility of local parts such as arms being pinched, the setting density of the transmitters 42 can be further increased.

[0055] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the transmitter 42 and the second motor 43 are both disposed on one end surface of the upper cover 20 close to the box body 10 , and the receiver 41 is disposed on one end surface of the box body 10 close to the upper cover 20 .

[0056] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, a receiving groove 21 is provided on one end surface of the upper cover 20 close to the box body 10, and the transmitter 42 and the second motor 43 are both arranged in the receiving groove 21; so as to prevent the second motor 43 and the transmitter 42 from colliding with the box body 10 and causing damage after the upper cover 20 is closed.

[0057] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, one end of the emitting screen 44 is fixed to the driving shaft of the second motor 43 , and the other end is rotatably connected to the inner wall of the receiving groove 21 , so as to increase the rotation stability of the emitting screen 44 .

[0058] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the transmitter 42 and the receiver 41 are respectively located at one end of their respective end surfaces away from the rotation axis of the upper cover 20.

[0059] When users take clothes from the inner drum, they usually bend over to take them from the front of the washing machine, that is, away from the side of the rotation connection position of the upper cover 20. Therefore, arranging the transmitter 42 and the receiver 41 on this side can meet the detection requirements in most cases.

[0060] In some other embodiments, a transmitter 42 is also provided on the other side edges of the upper cover 20 close to the end surface of one side of the box body 10, and a corresponding receiver 41 is also provided on the other side edges of the end surface of one side of the box body 10 close to the upper cover 20, so that even if the user reaches into the inner barrel from the side to take clothes, it can also be detected by the anti-collision detection structure of the present application.

[0061] In some embodiments, an inner barrel and a sensor capable of weighing the weight of the inner barrel are disposed in the box body 10 , and the sensor is electrically connected to the first motor 30 .

[0062] By using a sensor to weigh the weight of the inner barrel, it is possible to determine whether there are clothes in the barrel, and when it is determined that there are no clothes in the barrel, the first motor 30 is controlled to rotate, thereby achieving automatic closing of the upper cover 20 after the clothes are taken out.

[0063] A second aspect of the present application provides a washing machine, comprising the above-mentioned anti-collision detection structure.

[0064] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An anti-collision detection structure, It is characterized in that It comprises a box body (10), an upper cover (20) and a first motor (30), wherein the upper cover (20) is rotatably connected to the box body (10), and the first motor (30) is arranged on the box body (10) and can drive the upper cover (20) to rotate; One of the box body (10) and the upper cover (20) is provided with a receiver (41), and the other is provided with a transmitter (42) corresponding to the receiver (41); One of the two motors is also provided with a second motor (43), the second motor (43) being electrically connected to the first motor (30), and the second motor (43) being capable of driving the receiver (41) or the transmitter (42) to rotate according to the rotation angle of the first motor (30), so that the receiver (41) and the transmitter (42) are always facing each other.

2. The anti-collision detection structure according to claim 1, It is characterized in that The box body (10) is provided with the receiver (41), and the upper cover (20) is provided with the transmitter (42) and the second motor (43).

3. The anti-collision detection structure according to claim 2, It is characterized in that The upper cover (20) is provided with a transmitting screen (44), and a plurality of transmitters (42) are provided on the transmitting screen (44). The second motor (43) can drive the transmitting screen (44) to rotate, and the box body (10) is provided with a plurality of receivers (41) corresponding to each transmitter (42).

4. The anti-collision detection structure according to claim 3, It is characterized in that The emitters (42) are arranged at equal intervals in a direction parallel to the rotation center axis of the upper cover (20).

5. The anti-collision detection structure according to claim 2, It is characterized in that The transmitter (42) and the second motor (43) are both arranged on an end surface of one side of the upper cover (20) close to the box body (10), and the receiver (41) is arranged on an end surface of one side of the box body (10) close to the upper cover (20).

6. The anti-collision detection structure according to claim 5, It is characterized in that A receiving groove (21) is provided on one end surface of the upper cover (20) close to the box body (10), and the transmitter (42) and the second motor (43) are both arranged in the receiving groove (21).

7. The anti-collision detection structure according to claim 6, It is characterized in that The upper cover (20) is provided with a transmitting screen (44), and a plurality of the transmitters (42) are provided on the transmitting screen (44). One end of the transmitting screen (44) is fixed to the driving shaft of the second motor (43), and the other end is rotatably connected to the inner wall of the containing groove (21).

8. The anti-collision detection structure according to claim 5, It is characterized in that The transmitter (42) and the receiver (41) are respectively located at one end of their respective end surfaces away from the rotation center axis of the upper cover (20).

9. The anti-collision detection structure according to claim 1, It is characterized in that An inner barrel and a sensor capable of weighing the weight of the inner barrel are arranged in the box body (10), and the sensor is electrically connected to the first motor (30).

10. A washing machine, It is characterized in that It comprises the anti-collision detection structure as claimed in any one of claims 1 to 9.

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