Air outlet protective cover, refrigeration equipment and control method

Abstract

The present invention discloses an air vent protective cover, refrigeration equipment, and a control method, comprising a telescopic cover and a drive device for adjusting the telescopic state of the telescopic cover; the telescopic cover includes at least one ventilating expansion joint with an air vent; when the telescopic cover completely covers the air vent, the ventilating expansion joint expands and the air vent is located above the air vent; when the telescopic end partially covers the air vent, the ventilating expansion joint contracts to close the air vent. When the air vent is completely covered by the present invention, the air vent can be ventilated to the air vent, that is, when the bottom of the air vent is blocked, the top of the air vent can be ventilated. The protective mode is suitable for windy and sandy weather. When the telescopic end partially covers the air vent, the air vent is closed, and the protective cover port is facing downward, so that the upper part can be shielded from rain and snow.

Description

Technical Field

[0001] The present invention relates to the technical field of air-conditioning protective equipment, and in particular to an air outlet protective cover, a refrigeration device and a control method. Background Art

[0002] Currently, common direct expansion rooftop air conditioning units with fresh air functions are equipped with fresh air vents to introduce outdoor air to provide fresh air to the application area. However, when these units are installed outdoors in northern locations and encounter rain, snow, and dust, the fresh air vents lack effective protection against rain, snow, and dust, rendering the fresh air function ineffective.

[0003] For example, the invention patent with application number CN200920023619.9 discloses a foldable air conditioner outdoor unit protective cover, which can be folded in an arc shape around an axis. When the protective cover is folded, it does not affect the ventilation and heat dissipation of the air conditioner outdoor unit; when the protective cover falls, the air conditioner outdoor unit is protected under the protective cover, so that the air conditioner outdoor unit is protected from the sun, wind and rain. Although the foldable protective cover is easy to fold and unfold, once the protective cover completely covers the fresh air inlet, the equipment has to be shut down and the fresh air function is lost. For some special Depending on the weather, it is not necessary to completely cover the new air vent to achieve the protection function. For example, since rain and snow fall from top to bottom, in rainy and snowy weather, just covering the top of the air vent can prevent rain and snow from entering the air vent; and in windy and sandy weather, the wind blows the sand and stones on the ground upward, so in windy and sandy weather, just covering the bottom of the air vent can prevent sand and stones from entering the air vent. However, since the upper part of the current protective cover is fixed on the air vent, it can only cover the top of the air vent or completely cover the air vent, but cannot cover the bottom of the air vent while ventilating the top.

[0004] Therefore, how to achieve ventilation above the vent while covering the bottom of the vent has become a technical problem that needs to be solved urgently in the industry. Summary of the Invention

[0005] In order to solve the problem that ventilation can be achieved above the vent when the lower part of the vent is covered, the present invention proposes an vent protective cover, by arranging air holes above the retractable protective cover, ventilation can be achieved above the vent when the lower part of the vent is covered.

[0006] The objectives of the present invention can be achieved through the following technical solutions: an air outlet protective cover, comprising a telescopic cover and a driving device for adjusting the telescopic state of the telescopic cover; the telescopic cover comprises at least one breathable telescopic joint with an air vent; when the telescopic cover completely covers the air outlet, the breathable telescopic joint is unfolded and the air vent is located above the air outlet; when the telescopic end partially covers the air outlet, the breathable telescopic joint contracts so that the air vent is closed.

[0007] In some embodiments, the telescopic cover includes a fixed end and a telescopic end for being fixed on the air outlet, and a plurality of telescopic joints are provided between the fixed end and the telescopic end.

[0008] In certain embodiments, the telescopic cover is made of a flexible material, and the driving device includes a frame that supports the telescopic cover and is coaxially rotatable.

[0009] In certain embodiments, the frame is a U-shaped frame.

[0010] In some embodiments, the frame includes an inner fixed frame as a fixed end, an outer rotating frame located at the telescopic end of the telescopic cover, and a support frame located between the inner fixed frame and the outer rotating frame, and the outer rotating frame is controlled to rotate by a motor.

[0011] In certain embodiments, from the outer rotating frame to the inner fixing frame, the adjacent frames are sequentially nested and retracted into the inner fixing frame.

[0012] In some embodiments, the system further includes a controller configured to control the extension and retraction of the telescopic cover according to weather forecast data.

[0013] In some embodiments, the system further includes a controller and an environmental detector for detecting the environment in which the air outlet is located. The controller controls the extension and retraction amount of the telescopic cover according to information from the environmental detector.

[0014] A refrigeration device, wherein the fresh air inlet of the refrigeration device is provided with the above-mentioned air inlet protective cover.

[0015] The control method of the refrigeration equipment includes:

[0016] Get weather forecast data;

[0017] determining whether the weather conditions are severe based on the weather forecast data;

[0018] If yes, then enable protection mode;

[0019] If not, the outdoor environmental data of the refrigeration equipment is monitored, and whether the weather conditions are severe is determined based on the outdoor environmental data. If so, the protection mode is activated.

[0020] In some embodiments, the protection mode includes a rain and snow protection mode and a wind and sand protection mode;

[0021] The control method also includes: before turning on the protection mode, first determining whether the weather condition is rainy or snowy or windy and sandy; if it is windy and sandy weather, turning on the wind and sand protection mode so that the telescopic cover completely covers the air outlet; if it is rainy or snowy weather, turning on the rain and snow protection mode so that the telescopic cover partially covers the air outlet.

[0022] In certain embodiments, when the refrigeration equipment is ready to be shut down, the protective cover is first placed in the rain and snow protection mode, and then the equipment is shut down.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] When the air outlet is completely covered by the present invention, the air vent can be used for ventilation of the air outlet, that is, when the bottom of the air outlet is covered, the top of the air outlet can be ventilated. The protection mode is suitable for windy and sandy weather. When the telescopic end partially covers the air outlet, the air vent is closed. At this time, the port of the protective cover faces downward, and the upper part can block rain and snow. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is described in detail below with reference to specific embodiments and accompanying drawings. To illustrate details and facilitate understanding of its principles, the drawings are not necessarily drawn to scale, and similar reference numerals may describe similar components in different views. The accompanying drawings generally illustrate the embodiments discussed herein by way of example and not limitation. Among them:

[0026] Figure 1 It is a schematic diagram of the wind and sand protection mode.

[0027] Figure 2 It is a three-dimensional schematic diagram of the rain and snow protection mode.

[0028] Figure 3 yes Figure 2 Schematic side view of .

[0029] Figure 4 yes Figure 2 Front view of.

[0030] Figure 5 This is a schematic diagram of the protective cover being fully opened.

[0031] Figure 6 It is a control flow diagram of refrigeration equipment.

[0032] In the figure, 1. air outlet; 2. motor; 3. motor shaft; 4. outer rotating frame; 5. inner fixed frame; 6. telescopic cover; 61. telescopic joint; 62. telescopic joint; 63. telescopic joint; 64. telescopic joint; 65. breathable telescopic joint; 66. breathable telescopic joint; 651. air vent; 7. support frame. DETAILED DESCRIPTION

[0033] The following are specific embodiments of the present invention, which are further described in conjunction with the accompanying drawings to further illustrate the technical solutions of the present invention. However, the present invention is not limited to these embodiments, and the following embodiments do not limit the inventions involved in the claims. In addition, not all combinations of features described in the embodiments are necessarily required for the solutions of the invention.

[0034] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0035] Example

[0036] like Figure 1 、 2 As shown in Figures 3, 4, and 6, the air outlet protective cover includes a telescopic cover 6 and a driving device for adjusting the telescopic state of the telescopic cover 6; the telescopic cover 6 includes at least one breathable telescopic joint 65 with an air vent 651; when the telescopic cover 6 completely covers the air outlet 1, the breathable telescopic joint is unfolded and the air vent 651 is located above the air outlet 1; when the telescopic end partially covers the air outlet 1, the breathable telescopic joint contracts to close the air vent 651. In this way, when the air outlet 1 is completely covered, the air vent 651 can ventilate the air outlet 1, that is, when the bottom of the air outlet 1 is covered, the top of the air outlet 1 can be ventilated. At this time, the protection mode is a wind and sand protection mode suitable for windy and sandy weather. When the telescopic end partially covers the air outlet 1, the breathable telescopic joint does not unfold and remains in a contracted state, so the air vent 651 is closed at this time. At this time, the protective cover port faces downward, and the upper part can still block rain and snow, which is equivalent to an ordinary protective cover. At this time, the protection mode is a rain and snow protection mode suitable for rainy and snowy weather.

[0037] The telescopic cover 6 includes a fixed end and a telescopic end for fixing on the air outlet 1. There are several telescopic sections between the fixed end and the telescopic end, so as to realize the telescopic control of the telescopic cover 6 section by section, thereby controlling the shielding area of ​​the air outlet 1.

[0038] The telescopic cover 6 is made of a flexible material, such as canvas or other fabric. The driving device includes a frame that supports the telescopic cover 6 and can rotate coaxially. The frame serves as a supporting skeleton to control the telescopic movement of the telescopic cover 6. The frame is a U-shaped frame with a simple structure and good supporting strength. The frame includes an inner fixed frame 5 as a fixed end, an outer rotating frame 4 located at the telescopic end of the telescopic cover, and a support frame 7 located between the inner fixed frame 5 and the outer rotating frame 4. The inner fixed frame 5 is fixed above the air outlet 1. The outer rotating frame 4 and the support frame 7 are coaxially rotatable, that is, they can rotate around a common axis. The outer rotating frame 4 is controlled to rotate by the motor 2, and the outer rotating frame 4 thereby drives the support frame 7 to rotate in turn, thereby causing each telescopic section to expand or close.

[0039] From the outer rotating frame 4 to the inner fixed frame 5, the adjacent frames are nested and folded into the inner fixed frame 5 in sequence, that is, the supporting frames 7 from the outer rotating frame 4 to the inner fixed frame 5 are reduced in sequence so that they can be nested and stored in the inner fixed frame 5.

[0040] The device further includes a controller that controls the extension and contraction of the telescopic cover 6 according to weather forecast data, thereby providing advance protection for the air outlet 1. The device further includes an environmental detector that detects the environment in which the air outlet 1 is located. The controller can also control the extension and contraction of the telescopic cover 6 according to information from the environmental detector, thereby providing advance protection for the air outlet 1.

[0041] Specifically, the motor 2 can be installed on or near the air outlet 1 by bolt fasteners; the inner fixed frame 5 is installed on the plane where the air outlet 1 is installed by bolt fasteners; the outer rotating frame 4 is connected to the inner fixed frame 5 by a riveted rotating pair; the motor 2 shaft can be connected and fixed to the outer rotating frame 4 by special-shaped parts such as keyways and inserts; the telescopic cover is connected to the edges of the inner fixed frame 5 and the outer rotating frame 4 by bolt fasteners.

[0042] Of course, the telescopic driving device can also be a manual driving device. For example, a gas spring with multi-level limit can be used to control the opening angle of the inner fixed frame 5 relative to the air outlet. This belongs to the existing technology and will not be described here.

[0043] In this embodiment, there are six expansion joints 61 , which are expansion joint 61 , expansion joint 62 , expansion joint 63 , expansion joint 64 , air-permeable expansion joint 65 , and air-permeable expansion joint 66 from bottom to top.

[0044] Of course, the telescopic joint may also be of fixed size and cannot be deformed, and all the telescopic joints are nested in sequence, thereby also achieving the same above-mentioned functions. This belongs to the prior art and will not be described in detail here.

[0045] The control method of the refrigeration equipment with the air vent 1 protective cover is as follows:

[0046] Obtain weather forecast data, which can be sourced from Internet big data, and obtain the local weather conditions of the day through big data;

[0047] determining whether the weather conditions are severe based on the weather forecast data;

[0048] If yes, then enable protection mode;

[0049] If not, the outdoor environmental data of the refrigeration equipment is monitored by the environmental detector, and whether the weather conditions are severe is determined according to the outdoor environmental data. If so, the protection mode is turned on.

[0050] The protection mode includes a rain and snow protection mode and a wind and sand protection mode; if it is in windy and sandy weather, the wind and sand protection mode is turned on so that the telescopic cover 6 completely covers the air outlet 1, and the telescopic cover 6 is fully opened;

[0051] If it is rainy or snowy, the rain and snow protection mode is turned on so that the telescopic cover 6 partially covers the air outlet 1. At this time, the telescopic cover 6 only rotates downward to open the telescopic joints 61, 62, 63, and 64, while the air-permeable telescopic joints 65 and 66 are in a folded state.

[0052] In addition, when the refrigeration equipment is ready to be shut down, the protective cover is first placed in the rain and snow protection mode, and then the equipment is shut down to prevent the occurrence of rain and snow.

[0053] like Figure 6 FIG. 1 shows a specific control process of a refrigeration device having the protective cover, and the process is described as follows:

[0054] First, the equipment unit is turned on, and then the big data function is turned on. The weather conditions of the day are predicted based on the big data. If it is bad, the protective cover is controlled to open to the corresponding protection mode according to the corresponding weather. If the weather conditions of the day are not predicted to be bad, the protective cover enters the standby state, and the outdoor environmental data is monitored by the environmental detector. If the current environmental weather is bad, the protective cover is controlled to open to the corresponding protection mode according to the corresponding weather. If the current environmental weather is not bad, the protective cover is closed, that is, the telescopic cover 6 is completely retracted, so that the air outlet 1 is fully opened. When the unit is ready to shut down, the protective cover can be controlled to open to the corresponding protection mode according to the predicted possible bad weather conditions in the future, and then the equipment unit is shut down.

[0055] Although some terms are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention. The execution order of actions, steps, etc. in the devices and methods shown in the specification and drawings can be implemented in any order as long as there is no special explicit limitation on the order, and as long as the output of the previous processing is not used in the subsequent processing. Similar sequential terms (for example, "first", "next", "secondly", "again", "then", etc.) used for the convenience of description do not mean that they must be implemented in such an order.

[0056] It should be understood by those skilled in the art that all directional references (for example, above, below, upward, up, downward, down, top, bottom, left, right, vertical, horizontal, etc.) are used descriptively in the drawings to facilitate the reader's understanding, and do not represent limitations (for example, on position, orientation or use, etc.) on the scope of the invention as defined by the appended claims. They are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. The directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0057] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0058] In addition, some vague terms (e.g., substantially, certain, approximately, etc.) may refer to slight imprecision or slight deviation of conditions, quantities, values, or dimensions, some of which are within manufacturing variations or tolerances. It should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meanings and should not be construed as limiting the scope of protection of this application.

[0059] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. A tuyere protective cover, comprising a telescopic cover and a driving device for adjusting the telescopic state of the telescopic cover; characterized in that: The telescopic cover includes at least one breathable telescopic joint with a vent. When the telescopic cover completely covers the air outlet, the breathable telescopic joint is expanded and the air outlet is located above the air outlet. When the telescopic cover partially covers the air outlet, the breathable telescopic joint contracts to close the air outlet.

2. The air outlet protective cover according to claim 1, characterized in that: The telescopic cover comprises a fixed end and a telescopic end for being fixed on the air outlet, and a plurality of telescopic joints are provided between the fixed end and the telescopic end.

3. The air outlet protective cover according to claim 2, characterized in that: The telescopic cover is made of flexible material, and the driving device includes a frame that supports the telescopic cover and can rotate coaxially.

4. The air outlet protective cover according to claim 3, characterized in that: The frame is a U-shaped frame.

5. The air outlet protective cover according to claim 3, characterized in that: The frame includes an inner fixed frame as a fixed end, an outer rotating frame located at the telescopic end of the telescopic cover, and a support frame located between the inner fixed frame and the outer rotating frame. The outer rotating frame is controlled to rotate by a motor.

6. The air outlet protective cover according to claim 5, characterized in that: From the outer rotating frame to the inner fixed frame, the adjacent frames are nested and folded into the inner fixed frame in sequence.

7. The air outlet protective cover according to claim 1, characterized in that: The utility model further comprises a controller, wherein the controller controls the extension and contraction amount of the telescopic cover according to weather forecast data.

8. The air outlet protective cover according to claim 1, characterized in that: It also includes a controller and an environmental detector for detecting the environment in which the air outlet is located. The controller controls the telescopic amount of the telescopic cover according to information from the environmental detector.

9. Refrigeration equipment, characterized in that The fresh air inlet of the refrigeration equipment is provided with an air inlet protective cover according to any one of claims 1 to 8.

10. A method for controlling a refrigeration device, wherein the refrigeration device is the refrigeration device according to claim 9, characterized in that: The control method includes: Get weather forecast data; determining whether the weather conditions are severe based on the weather forecast data; If yes, then enable protection mode; If not, the outdoor environmental data of the refrigeration equipment is monitored, and whether the weather conditions are severe is determined based on the outdoor environmental data. If so, the protection mode is activated.

11. The control method according to claim 10, characterized in that: The protection modes include rain and snow protection mode and wind and sand protection mode; The control method also includes: before turning on the protection mode, first determining whether the weather condition is rainy or snowy or windy and sandy; if it is windy and sandy weather, turning on the wind and sand protection mode so that the telescopic cover completely covers the air outlet; if it is rainy or snowy weather, turning on the rain and snow protection mode so that the telescopic cover partially covers the air outlet.

12. The control method according to claim 11, characterized in that: When the refrigeration equipment is ready to be shut down, the protective cover is first placed in the rain and snow protection mode, and then the equipment is shut down.

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