阅读说明：本技术 风冷卧式冷柜 (Air-cooled horizontal refrigerator ) 是由 李大伟 丁剑波 成俊亮 徐磊 任伟涛 朱蔚莉 于 2019-08-23 设计创作，主要内容包括：本发明提供一种风冷卧式冷柜,内胆,内胆包括底板、第一内胆壁和第二内胆壁,第一内胆壁和第二内胆壁相对设置；在第一内胆壁中设置有第一送风装置和第一吸风装置,第一送风装置位于第一吸风装置的上方；在第二内胆壁中设置有第二送风装置和第二吸风装置,第二送风装置位于第二吸风装置的上方；第一送风装置与底板之间的距离不等于第二送风装置与底板之间的距离。在该风冷卧式冷柜中,第一内胆壁中的送风装置所送出的温度较低的空气会以较大的概率流经靠近第一内胆壁附近存放的物品,然后以较大的概率被第一内胆壁中的吸风装置吸走,第二内胆壁也是如此,因此,靠近第一、第二内胆壁存放的物品很容易被制冷。(The invention provides an air-cooled horizontal refrigerator, which comprises a liner, wherein the liner comprises a bottom plate, a first liner wall and a second liner wall, and the first liner wall and the second liner wall are oppositely arranged; a first air supply device and a first air suction device are arranged in the first inner container wall, and the first air supply device is positioned above the first air suction device; a second air supply device and a second air suction device are arranged in the second inner container wall, and the second air supply device is positioned above the second air suction device; the distance between the first air supply device and the bottom plate is not equal to the distance between the second air supply device and the bottom plate. In the air-cooled horizontal refrigerator, air with lower temperature sent by the air supply device in the first inner container wall flows through the articles stored near the first inner container wall with higher probability and is sucked away by the air suction device in the first inner container wall with higher probability, and the second inner container wall is also the same, so the articles stored near the first and second inner container walls are easily refrigerated.)

1. An air-cooled horizontal freezer comprising:

the inner container (1) comprises a bottom plate (12), a first inner container wall (13) and a second inner container wall (14), wherein the first inner container wall (13) and the second inner container wall (14) are oppositely arranged;

a first air supply device (17A) and a first air suction device (18A) are arranged in the first inner container wall (13), and the first air supply device (17A) is positioned above the first air suction device (18A);

a second air supply device (17B) and a second air suction device (18B) are arranged in the second inner container wall (14), and the second air supply device (17B) is positioned above the second air suction device (18B);

the distance between the first air supply device (17A) and the bottom plate (12) is not equal to the distance between the second air supply device (17B) and the bottom plate (12).

2. The air-cooled horizontal refrigerator according to claim 1, wherein:

the first air supply device (17A) is arranged at the top of the first inner container wall (13).

3. The air-cooled horizontal refrigerator according to claim 1, wherein:

the second air supply device (17B) is arranged in the middle of the second inner container wall (14).

4. The air-cooled horizontal refrigerator according to claim 1, wherein:

the first air suction device (18A) is arranged at the bottom of the first inner container wall (13), and the second air suction device (18B) is arranged at the bottom of the second inner container wall (14).

5. The air-cooled horizontal refrigerator according to claim 1, wherein:

the first air supply device and the second air supply device both comprise a plurality of air supply holes (171) which are horizontally and uniformly arranged.

6. The air-cooled horizontal refrigerator according to claim 1, wherein:

the first air suction device and the second air suction device both comprise a plurality of horizontally arranged air suction holes (181), and the width values of the air suction holes (181) are not all equal.

7. The air-cooled horizontal refrigerator according to claim 1, wherein:

the distance between the first air supply device (17A) and the bottom plate (12) is larger than the distance between the second air supply device (17B) and the bottom plate (12).

8. The air-cooled horizontal refrigerator according to claim 7, wherein:

the height value of the first inner container wall (13) is larger than that of the second inner container wall.

9. The air-cooled horizontal refrigerator according to claim 1, wherein:

the inner container (1) further comprises a third inner container wall (15) and a fourth inner container wall (16) which are oppositely arranged, a third air outlet device (17C) is arranged in the third inner container wall (15), and a fourth air outlet device (17D) is arranged in the fourth inner container wall (16).

10. The air-cooled horizontal refrigerator according to claim 9, wherein:

the distance between the third air outlet device (17C) and the bottom plate (12) is not equal to the distance between the fourth air outlet device (17D) and the bottom plate (12).

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to an air-cooled horizontal refrigerator.

Background

The horizontal refrigerator is a refrigeration device which keeps constant low temperature, is a common electric appliance for preserving articles at low temperature in life, and is widely applied to the fields of commerce and household.

At present, the refrigeration principle of horizontal refrigerators is generally divided into direct-cooling horizontal refrigerators and air-cooling horizontal refrigerators, wherein the direct-cooling horizontal refrigerators are prone to frost in the refrigerator during use, and the air-cooling horizontal refrigerators are favored by users due to the fact that the air-cooling horizontal refrigerators have the advantage of no frost. In the air-cooled horizontal refrigerator, blow into the accommodation space with the lower air of temperature through air supply arrangement (namely air supply arrangement is to the accommodation space air supply) to refrigerate the article that leave in the accommodation space, then inhale the higher air of temperature away through the device that induced drafts (namely the device that induced drafts from the accommodation space), it can be understood that, there is a route that the air flows between air supply arrangement and the device that induced drafts, article on this route are very easily refrigerated, and article in other regions then are difficult to be refrigerated, for example: although the cabinet case of the air-cooled horizontal refrigerator is provided with a heat insulating material (i.e., a foam), heat in the external space can be conducted into the accommodating space along the heat insulating material, i.e., in the accommodating space, the temperature of the articles near the cabinet case is easily raised, and thus, it is necessary to enhance the refrigeration of the articles near the cabinet case.

Therefore, in the air-cooled horizontal refrigerator, how to uniformly cool the articles stored in the accommodating space becomes a problem to be solved urgently.

Disclosure of Invention

The invention aims to provide an air-cooled horizontal refrigerator.

In order to achieve one of the above objects, an embodiment of the present invention provides an air-cooled horizontal refrigerator including: the liner comprises a bottom plate, a first liner wall and a second liner wall, wherein the first liner wall and the second liner wall are arranged oppositely; a first air supply device and a first air suction device are arranged in the first inner container wall, and the first air supply device is positioned above the first air suction device; a second air supply device and a second air suction device are arranged in the second inner container wall, and the second air supply device is positioned above the second air suction device; the distance between the first air supply device and the bottom plate is not equal to the distance between the second air supply device and the bottom plate.

As a further improvement of the first embodiment of the present invention, the first air blowing device is disposed on a top portion of the first inner container wall.

As a further improvement of the first embodiment of the present invention, the second air blowing device is disposed at a middle portion of the second inner container wall.

As a further improvement of the first embodiment of the present invention, the first air suction device is disposed at the bottom of the first inner container wall, and the second air suction device is disposed at the bottom of the second inner container wall.

As a further improvement of an embodiment of the present invention, each of the first and second air blowing devices includes a plurality of air blowing holes which are horizontally and uniformly arranged.

As a further improvement of an embodiment of the present invention, each of the first and second air suction devices includes a plurality of horizontally arranged air suction holes, and the width values of the plurality of air suction holes are not all equal.

As a further improvement of the embodiment of the present invention, a distance between the first air blowing device and the bottom plate is larger than a distance between the second air blowing device and the bottom plate.

In a further refinement of an embodiment of the invention, the height value of the first inner container wall is greater than the height value of the second inner container wall.

As a further improvement of the embodiment of the present invention, the liner further includes a third liner wall and a fourth liner wall which are oppositely disposed, the third liner wall is provided with a third air outlet device, and the fourth liner wall is provided with a fourth air outlet device.

As a further improvement of the embodiment of the present invention, a distance between the third air outlet device and the bottom plate is not equal to a distance between the fourth air outlet device and the bottom plate.

Compared with the prior art, the invention has the technical effects that: the invention provides an air-cooled horizontal refrigerator, in the air-cooled horizontal refrigerator, air with lower temperature sent by an air supply device in a first inner container wall can flow through articles stored near the first inner container wall with higher probability, and then is sucked away by an air suction device in the first inner container wall with higher probability; the air with lower temperature sent by the air supply device in the second inner container wall can flow through the articles stored near the second inner container wall with higher probability and then is sucked away by the air suction device in the second inner container wall with higher probability; therefore, the articles stored near the first and second inner container walls can be easily cooled.

Drawings

Fig. 1 is an exploded schematic view of an air-cooled horizontal freezer according to a first embodiment of the present invention;

fig. 2A, fig. 2B, fig. 2C and fig. 2D are schematic cross-sectional views of an air-cooled horizontal refrigerator according to a first embodiment of the present invention, wherein fig. 2C is a cross-sectional view of a cross-section AA in fig. 2A, and fig. 2D is a cross-sectional view of a cross-section BB in fig. 2A;

fig. 3A, fig. 3B, fig. 3C, fig. 3D and fig. 3E are schematic cross-sectional views of an air-cooled horizontal refrigerator according to a second embodiment of the present invention, wherein fig. 3C is a cross-sectional view of a section CC in fig. 3A, fig. 3D is a cross-sectional view of a section DD in fig. 3A, and fig. 3E is a cross-sectional view of a section EE in fig. 3B.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

Terms such as "upper," "above," "lower," "below," and the like, used herein to denote relative spatial positions, are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Also, it should be understood that, although the terms first, second, etc. may be used herein to describe various elements or structures, these described elements should not be limited by these terms. These terms are only used to distinguish these descriptive objects from one another. For example, the first inner container wall may be referred to as the second inner container wall, and similarly the second inner container wall may also be referred to as the first inner container wall, without departing from the scope of the present application.

An embodiment of the present invention provides an air-cooled horizontal refrigerator, as shown in fig. 1 and fig. 2A to 2D, including: the liner comprises a liner 1, wherein the liner 1 comprises a bottom plate 12, a first liner wall 13 and a second liner wall 14, and the first liner wall 13 and the second liner wall 14 are oppositely arranged; a first air supply device 17A and a first air suction device 18A are arranged in the first liner wall 13, and the first air supply device 17A is positioned above the first air suction device 18A; a second air supply device 17B and a second air suction device 18B are arranged in the second inner container wall 14, and the second air supply device 17B is positioned above the second air suction device 18B; the distance between the first air supply device 17A and the bottom plate 12 is not equal to the distance between the second air supply device 17B and the bottom plate 12.

Here, it should be noted that the air blowing hole 171 and the air suction hole 181 shown in fig. 2A and 2B are not shown in fig. 1.

Here, in the air-cooled horizontal refrigerator, the air having a low temperature sent by the first air blowing device 17A flows through the articles stored in the vicinity of the first inner casing wall 13 with a high probability, and is then sucked by the first air suction device 18A and the second air suction device 18B with a high probability, so that the articles stored in the vicinity of the first inner casing wall 13 are easily cooled. Similarly, the air with a lower temperature sent by the second air blowing device 18A will flow through the articles stored near the second inner container wall 14 with a higher probability, and then will be sucked away by the second air suction device 18B with a higher probability, and will be sucked away by the first air suction device 18A with a lower probability, and the articles stored near the second inner container wall 14 will be easily cooled.

In actual use, when the air supply device with a relatively high distance from the bottom plate 12 sends air with a relatively low temperature, the temperature of the air with a relatively low temperature gradually rises in the process of flowing downwards, and the air with a relatively low temperature possibly loses the refrigeration effect due to the excessively high temperature when reaching a certain position, so that one air supply device can be arranged near the position, and articles on the lower side of the position can be refrigerated.

Here, fig. 1, 2A-2D show one implementation of the air-cooled horizontal freezer, it being understood that there are other implementations of the air-cooled horizontal freezer. In fig. 1 and 2A to 2D, the air-cooled horizontal refrigerator includes a box body and a door body, the door body is disposed above the box body, an inner container 1 is disposed in the box body, the inner container 1 encloses an accommodating space 11, and the door body can open and close the accommodating space 11. Optionally, the door body is made of transparent glass, so that a user can observe the articles stored in the accommodating space 11 through the transparent glass.

The bottom of the inner container 1 is recessed towards the accommodating space 11 to form a recess 2, the recess 2 has a first side wall 21, one end of the first side wall 21 is connected to the bottom plate 12 of the inner container 1, or the first side wall 21 extends from the bottom plate 12 towards the accommodating space 11; the air duct plate 3 is arranged adjacent to the first side wall 21, and a space between the air duct plate 3 and the first side wall 21 forms an evaporator chamber 36, and the evaporator 32 is arranged in the evaporator chamber 36; wherein, the air duct plate 3 is located in the accommodating space 11. The recess 2 further comprises a second side wall 22, the second side wall 22 is perpendicular to the first side wall 21, i.e. the first side wall 21 and the second side wall 22 form a right-angled structure, preferably, the first side wall 21 is perpendicular to the bottom plate 12, for example, one end of the first side wall 21 is perpendicular to the edge of the bottom plate 12; the second side wall 22 is perpendicular to the third inner container wall 15 of the inner container 1, and one end of the second side wall 22 is vertically connected with the lower edge of the third inner container wall 15. In this embodiment, the recess 2 may be regarded as a right-angled step structure formed by bending the bottom plate 12 toward the accommodating space 11, but not limited thereto. During production, the first sidewall 21 of the concave portion 2 may be bent from the bottom plate 12 toward the accommodating space 11, and the second sidewall 22 may be bent from the third liner wall 15 toward the accommodating space 11, such that the first sidewall 21 and the second sidewall 22 meet and are connected to each other in the accommodating space 11.

The air duct plate 3 includes a first cover plate 33 and a second cover plate 34, the first cover plate 33 and the second cover plate 34 may be perpendicular to each other, the first cover plate 33 is parallel and opposite to the first sidewall 21 of the recess 2, and the top surface of the second cover plate 34 and the top surface of the second sidewall 22 of the recess 2 are flush with each other. The space between the first side wall 21, the first cover plate 33, the second cover plate 34 and the bottom plate 12 is an evaporator chamber 36, and the evaporator 32 is disposed in the evaporator chamber 36. The bottom plate 12 of the inner container 1 is provided with a mounting groove (not shown) corresponding to an area of the evaporator compartment 36 so that the evaporator 32 can be positioned in the mounting groove. Of course, for the purpose of easy installation, the evaporator 32 and the fan unit 35 may be assembled in advance to a mounting plate (not shown) fixed in the mounting groove by screwing or the like, and the fan unit 35 is located between the evaporator compartment 36 and the first side wall 21 of the recess 2. The fan unit 35 may include a housing assembly that fills a gap between the evaporator compartment 36 and the first sidewall 21, and a fan, which may be a centrifugal fan or an axial fan. Here, in practical use, the evaporator 32 needs to be defrosted, and in the defrosting process, heat is generated, and in order to prevent the heat from being conducted to the accommodating space 11 along the air duct plate 3, a heat insulation plate 331 may be laid on the air duct plate 3, and the heat insulation plate 331 is made of a heat insulation material (for example, foam material or the like).

Here, the air duct plate 3 is provided with a fixing hole, and the fixing member passes through the fixing hole to fixedly couple the air duct plate 3 to the liner 1, but not limited thereto, for example, the air duct plate 3 may be integrally formed with the recess 2 of the liner 1, that is, the air duct plate 3 may be formed by extending the second sidewall 22 of the recess 2 toward the accommodating space 11 and then bending toward the bottom plate 12. Preferably, the material of the air duct plate 3 may be the same as that of the inner container 1. The liner 1 is composed of a first liner wall 13, a second liner wall 14, a third liner wall 15, a fourth liner wall 16 and a bottom plate 12, wherein the first liner wall 13 and the second liner wall 14 are arranged oppositely, and the first liner wall 13 and the second liner wall 14 respectively extend upwards from two opposite side edges of the bottom plate 12; the third inner container wall 15 is vertically connected to the first inner container wall 13 and the second inner container wall 14, respectively. The liner 1 further includes a fourth liner wall 16, the fourth liner wall 16 is opposite to the third liner wall 15, the fourth liner wall 16 extends upward from the other side edge of the bottom plate 12 and is respectively vertically connected with the first liner wall 13 and the second liner wall 14, wherein a space surrounded by the first liner wall 13, the second liner wall 14, the third liner wall 15, the fourth liner wall 16, the bottom plate 12, the first side wall 21 of the concave portion 2 and the second side wall 22 is the accommodating space 11 of the liner 1.

Preferably, as shown in fig. 2A, the first air blowing device 17A is provided at the top of the first inner container wall 13. Here, the goods near the top of the first inner container wall 13 are easily cooled, and the goods in the food basket at the basket opening are easily cooled because the first blowing device 17A is located at the top, while the food basket at the basket opening is usually located at the basket opening of the receiving space 11. Alternatively, as shown in fig. 2A and 2C (in fig. 2A and 2C, the broken line indicates a duct that is an air supply duct), a first air supply duct 173A is provided in the first liner wall 13, and one end of the first air supply duct 173A communicates with the first air supply device 17A and the other end communicates with the inter-evaporator chamber 36, so that air with a low temperature in the inter-evaporator chamber 36 can flow into the first air supply device 17A through the first air supply duct 173A under the drive of the fan group 35. Here, since a foam material (which plays a role of heat insulation) is generally provided between the inner bag 1 and the outer case, the first air blowing passage 173A may be provided in the foam material.

Preferably, the second air blowing device 17B is provided in the middle of the second liner wall 14. Here, since the air blowing device is also provided in the middle of the second liner wall 14, the articles located near the middle of the second liner wall 14 are also easily cooled. As shown in fig. 2B and 2C (in fig. 2B and 2C, the duct indicated by the broken line is an air supply duct), a second air supply duct 173B may be further provided in the second liner wall 14, and one end of the second air supply duct 173B is communicated with the second air supply device 17B, and the other end is communicated with the evaporator compartment 36, so that air with a low temperature in the evaporator compartment 36 flows into the second air supply device 17B along the second air supply duct 173B under the drive of the fan group 35.

Preferably, as shown in fig. 2A and 2B, the first air suction device 18A is disposed at the bottom of the first inner container wall 13, and the second air suction device 18B is disposed at the bottom of the second inner container wall 14. Here, since the first air-sucking device 18A is located at the bottom, the articles near the bottom of the first inner container wall 13 are also easily cooled; since the second suction means 18B is located at the bottom, the articles near the bottom of the second inner container wall 14 can be easily cooled. Here, the first inner container wall 13 may be provided with a first air intake duct (not shown) having one end communicating with the first air intake device 18A and the other end communicating with the inter-evaporator chamber 36, so that the air having a high temperature sucked by the first air intake device 18A can be guided to the inter-evaporator chamber 36 by driving the fan unit 35. A second air suction channel (not shown) may be further disposed in the second inner container wall 14, one end of the second air suction channel is communicated with the second air suction device 18B, and the other end of the second air suction channel is communicated with the inter-evaporator chamber 36, so that the air with higher temperature sucked by the second air suction device 18B flows into the inter-evaporator chamber 36 under the driving of the fan unit 35. Here, a foaming material (which plays a role of heat insulation) is generally disposed between the inner container 1 and the cabinet case, and thus the first and second suction passages may be disposed in the foaming material.

Preferably, the first and second air blowing devices each include a plurality of air blowing holes 171 arranged horizontally and uniformly. Here, as shown in fig. 2A and 2B, the shapes of the air blowing holes 171 may be uniform.

Preferably, the first and second air suction devices each include a plurality of horizontally arranged air suction holes 181, and the width values of the plurality of air suction holes 181 are not all equal.

Preferably, the distance between the first air blowing device 17A and the bottom plate 12 is greater than the distance between the second air blowing device 17B and the bottom plate 12.

Preferably, in fig. 2A-2C, the height value of the first inner container wall 13 is greater than the height value of the second inner container wall. That is, the first inner container wall 13 is a back side, and the second inner container wall 14 is a front side, so that a user usually stands on the edge of the second inner container wall 14 and faces the first inner container wall 13 when using the device, thereby facilitating the user to take and place articles.

As shown in fig. 2A and 2B, each of the first and second air blowing devices includes a plurality of air blowing holes 171 horizontally and uniformly arranged, and each air blowing hole 171 is provided with an air blowing cover (not shown) that can open and close the air blowing hole 171, and the air blowing cover can change the air blowing direction, and here, when the air blowing hole 171 is covered by the air blowing cover, the air blowing hole 171 cannot blow air at a low temperature, and on the contrary, when the air blowing hole 171 is not covered by the air blowing cover, the air blowing hole 171 can blow air at a low temperature. Here, as shown in fig. 2A and 2B, the size of each of the blow holes 171 may be uniform.

Similarly, as shown in fig. 2A and 2B, the first and second air suction devices each include a plurality of air suction holes 181 arranged horizontally, and an air suction cover plate (not shown) may be disposed on the air suction holes 181, so that when the air suction holes 181 are covered by the air suction cover plate, the air suction holes 181 cannot suck the air with higher temperature from the accommodating space 11, and conversely, when the air suction holes 181 are not covered by the air suction cover plate, the air suction holes 181 can suck the air with higher temperature from the accommodating space 11. As shown in fig. 2A and 2B, the width values of the air suction holes 181 (the direction in which the third inner container wall 15 points to the fourth inner container wall 16 is the width direction) may be different, and in the direction in which the fourth inner container wall 16 points to the third inner container wall 15, three groups of air suction holes 181 are included, and the length values become smaller gradually, and each group of air suction holes 181 includes two air suction holes 181 with the same size.

A water receiving box 37 is arranged in the evaporator chamber 36, the water receiving box 37 is positioned below the evaporator 32, ice and/or water attached to the surface of the evaporator 32 can flow into the water receiving box 37 when the evaporator 32 is defrosted, and the outlet of the water receiving box 37 is communicated with a water receiving pipe 25; the recess 2 may be a press chamber provided with a compressor 23, in which an evaporation pan 24 is provided, and the other end of the water receiving pipe 25 is provided directly above the evaporation pan 24, so that ice and/or water in the water receiving box 37 flows into the evaporation pan 24 along the water receiving pipe 25, the evaporation pan 24 can evaporate the ice and/or water using heat generated by the compressor 23 during operation, and a through hole communicating with an external space may be further provided in a chamber wall of the press chamber, so that water vapor obtained by evaporating the ice and/or water may flow into the external space along the through hole.

An embodiment of the present invention provides an air-cooled horizontal refrigerator, as shown in fig. 3A to 3E, the difference between the air-cooled horizontal refrigerator in the embodiment of the present invention and the air-cooled horizontal refrigerator in the embodiment one is as follows: the liner 1 further comprises a third liner wall 15 and a fourth liner wall 16 which are oppositely arranged, a third air outlet device 17C is arranged in the third liner wall 15, and a fourth air outlet device 17D is arranged in the fourth liner wall 16. Here, in the air-cooled horizontal refrigerator, the air outlet means is provided in each of the first, second, third, and fourth inner container walls, so that the articles in the vicinity of the first, second, third, and fourth inner container walls can be cooled efficiently.

Preferably, the distance between the third air outlet device 17C and the bottom plate 12 is not equal to the distance between the fourth air outlet device 17D and the bottom plate 12. In actual use, when the air supply device with a relatively high distance from the bottom plate 12 sends air with a relatively low temperature, the temperature of the air with a relatively low temperature gradually rises in the process of flowing downwards, and the air with a relatively low temperature possibly loses the refrigeration effect due to the excessively high temperature when reaching a certain position, so that one air supply device can be arranged near the position, and articles on the lower side of the position can be refrigerated. In fig. 3A to 3E, the distance between the third air blowing device 17C and the bottom plate 12 is smaller than the distance between the fourth air blowing device 17D and the bottom plate 12.

Optionally, a distance between the first air outlet device 17A and the bottom plate 12 is equal to a distance between the fourth air outlet device 17D and the bottom plate 12, and a distance between the second air outlet device 17B and the bottom plate 12 is equal to a distance between the third air outlet device 17C and the bottom plate 12. The first air supply channel 173A also provides air with a lower temperature for the fourth air outlet device 17D, and the second air supply channel 173B also provides air with a lower temperature for the third air outlet device 17C.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.