A new type of cold storage exhaust fan

Abstract

The utility model relates to the technical field of exhaust fan, and disclose a novel cold storage exhaust fan, pipeline assembly, including the exhaust fan pipeline of U shape structure, set up in the drain pipe of exhaust fan pipeline bottom middle, set up in the fan module of exhaust fan pipeline rear end, and set up in the louver module of exhaust fan pipeline front end, water supply component, including the water tank of installation in exhaust fan pipeline one side, fixed between the water tank and exhaust fan pipeline's conveying pipe, and fixed in the electric heater of water tank side portion. The novel cold storage exhaust fan, through setting water supply component, can convey hot water to the inside of exhaust fan pipeline through conveying pipe under the action of water pump, reach the effect that defrosting exhaust fan pipeline, when not needing to exhaust, normal temperature water can be conveyed to the elbow pipe position of exhaust fan pipeline, the elbow pipe position of exhaust fan pipeline is blocked, avoids that external air enters the cold storage from exhaust fan pipeline.

Description

Technical Field

[0001] This utility model relates to the field of exhaust fan technology, specifically a new type of cold storage exhaust fan. Background Technology

[0002] A cold storage facility is a closed storage facility that uses artificial refrigeration technology to control environmental parameters such as temperature and humidity within a specific range. It is primarily used to extend the shelf life of goods such as food, medicine, and chemicals, preventing them from spoiling due to environmental changes. Exhaust fans are a key component of the cold storage's environmental control system, primarily responsible for maintaining air quality, balancing pressure, and optimizing temperature and humidity distribution within the storage area.

[0003] When cold storage exhaust fans are in use, the air discharged by the fans is at a low temperature, while the air outside the fans is at a high temperature. When the air comes into contact with the warmer air, water droplets will condense. These water droplets will gradually form frost under the action of the cold air. If the frost in the exhaust fan duct is not removed, it will gradually block the exhaust fan duct over time, affecting the exhaust efficiency of the exhaust fan duct. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Given the aforementioned or existing technologies, if the existing cold storage exhaust fan cannot remove the frost inside the exhaust fan duct, it will gradually clog the exhaust fan duct over time, affecting the exhaust effect of the exhaust fan duct.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A novel cold storage exhaust fan, characterized by comprising:

[0008] The duct assembly includes a U-shaped exhaust fan duct, a drain pipe located in the middle of the bottom of the exhaust fan duct, a fan assembly located at the rear end of the exhaust fan duct, and a louver assembly located at the front end of the exhaust fan duct.

[0009] The water supply assembly includes a water tank installed on one side of the exhaust fan duct, a delivery pipe fixed between the water tank and the exhaust fan duct, and an electric heater fixed on the side of the water tank.

[0010] As a further embodiment of this utility model: the water tank is connected to the exhaust fan pipe via a water pump and a delivery pipe, with the delivery pipe located above the middle of the exhaust fan pipe.

[0011] As a further embodiment of this utility model: the pipe assembly also includes a drain valve fixed in the middle of the drain pipe, and a square tube welded to the front end of the exhaust fan pipe, with the louver assembly installed inside the square tube.

[0012] As a further embodiment of this utility model: the louver assembly includes a plurality of louver bodies that are equidistantly and evenly distributed inside the square tube, a rotating shaft connected to the connection between the louver bodies and the square tube, and a stepper motor fixed to the side of the square tube and installed by bolts.

[0013] As a further embodiment of this utility model, the louver assembly further includes a drive gear fixed to the power output end of the stepper motor, a connecting rack meshing with the side of the drive gear, and a driven gear meshing with the side of the connecting rack.

[0014] As a further embodiment of this utility model: the driven gear and the driving gear are respectively fixedly connected to the rotating shaft, and the driving gear is located on the rotating shaft in the middle of the square tube.

[0015] As a further improvement of this utility model: a rubber pad is fixedly attached to the top of the louver body, and a sealing groove matching the rubber pad is opened at the bottom of the louver body.

[0016] As a further embodiment of this utility model: the fan assembly includes a dust cover fixed to the rear end of the exhaust fan duct, and a fan installed on one side of the dust cover, wherein the side of the exhaust fan duct closest to the dust cover is located inside the cold storage.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model, through the water supply component, can deliver hot water to the inside of the exhaust fan duct through the delivery pipe under the action of the water pump, so as to achieve the effect of defrosting the exhaust fan duct. At the same time, when exhaust is not required, room temperature water can be delivered to the bend of the exhaust fan duct to block the bend and prevent outside air from entering the cold storage through the exhaust fan duct.

[0019] 2. This utility model, through the setting of the louver assembly, enables the driven gear and the driving gear to rotate synchronously under the transmission action of the connecting rack, thereby achieving the effect that all louver bodies can be angled. When the fan is rotating, the louver body opens to exhaust air outward. When the fan stops, the stepper motor rotates in the opposite direction, and the louver body closes, preventing dust from entering the exhaust fan duct through the louver body. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the structure of a new type of cold storage exhaust fan;

[0021] Figure 2 This is a schematic diagram of the fan assembly in a novel cold storage exhaust fan.

[0022] Figure 3 This is a schematic diagram of a louver assembly in a novel cold storage exhaust fan.

[0023] Figure 4 This is a schematic diagram of the louver body in a new type of cold storage exhaust fan;

[0024] Figure 5 This is a half-sectional schematic diagram of the exhaust fan duct in a new type of cold storage exhaust fan.

[0025] In the diagram: 1. Piping assembly; 101. Exhaust fan duct; 102. Square tube; 103. Drain pipe; 104. Drain valve; 2. Water supply assembly; 201. Water tank; 202. Electric heater; 203. Water pump; 204. Delivery pipe; 3. Fan assembly; 301. Dust cover; 302. Fan; 4. Louver assembly; 401. Louver body; 402. Rubber pad; 403. Sealing groove; 404. Driven gear; 405. Connecting rack; 406. Rotating shaft; 407. Stepper motor; 408. Drive gear. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0029] Example 1

[0030] Please see Figure 1 , Figure 2 and Figure 5 This is the first embodiment of the present invention, which provides a novel cold storage exhaust fan, comprising:

[0031] The duct assembly 1 includes a U-shaped exhaust fan duct 101, a drain pipe 103 located in the middle of the bottom of the exhaust fan duct 101, a fan assembly 3 located at the rear end of the exhaust fan duct 101, and a louver assembly 4 located at the front end of the exhaust fan duct 101.

[0032] The water supply assembly 2 includes a water tank 201 installed on one side of the exhaust fan pipe 101, a delivery pipe 204 fixed between the water tank 201 and the exhaust fan pipe 101, and an electric heater 202 fixed on the side of the water tank 201.

[0033] Specifically, the water tank 201 is connected to the exhaust fan pipe 101 via the water pump 203 and the delivery pipe 204, with the delivery pipe 204 located above the middle of the exhaust fan pipe 101.

[0034] Furthermore, the water in the water tank 201 can be pumped by the water pump 203 to the interior of the exhaust fan pipe 101 through the delivery pipe 204. Since the delivery pipe 204 is located at the bend of the exhaust fan pipe 101, the bend of the exhaust fan pipe 101 can be blocked by water to prevent external air from entering the cold storage through the exhaust fan pipe 101.

[0035] Specifically, the pipe assembly 1 also includes a drain valve 104 fixed in the middle of the drain pipe 103, and a square tube 102 welded to the front end of the exhaust fan pipe 101, with the louver assembly 4 installed inside the square tube 102.

[0036] Furthermore, after the drain valve 104 is opened, the water in the exhaust fan pipe 101 can be discharged outward through the drain pipe 103, thereby opening the exhaust fan pipe 101, and the fan assembly 3 can work to discharge the air in the cold storage outward.

[0037] In use, when defrosting of the exhaust fan duct 101 is required, the electric heater 202 can be turned on to heat the water in the water tank 201. The heated water, then pumped by the water pump 203, is transported through the delivery pipe 204 to the interior of the exhaust fan duct 101. The hot water removes the frost from the exhaust fan duct 101, and the hot air permeates the entire exhaust fan duct 101, thus achieving the defrosting effect. The defrosted water can be drained by opening the drain valve 104. The drain pipe 103 discharges water outwards, thereby achieving the defrosting of the exhaust fan pipe 101. During the defrosting operation, the highest water level in the exhaust fan pipe 101 needs to be lower than the height of the fan assembly 3 to prevent water from flowing back into the cold storage. At the same time, when ventilation is not required, room temperature water can be pumped by the water pump 203 through the delivery pipe 204 to the bend of the exhaust fan pipe 101 to block the bend and prevent outside air from entering the cold storage through the exhaust fan pipe 101.

[0038] In summary, the new type of cold storage exhaust fan, through the water supply component 2, can deliver hot water to the inside of the exhaust fan pipe 101 through the delivery pipe 204 under the action of the water pump 203, thereby achieving the effect of defrosting the exhaust fan pipe 101. At the same time, when exhaust is not required, room temperature water can be delivered to the bend of the exhaust fan pipe 101 to block the bend and prevent outside air from entering the cold storage through the exhaust fan pipe 101.

[0039] Example 2

[0040] Please see Figure 1 , Figure 3 and Figure 4 This is the second embodiment of the present invention, which provides an improved design for a novel cold storage exhaust fan.

[0041] Specifically, the louver assembly 4 includes a plurality of louver bodies 401 that are equidistantly and evenly distributed inside the square tube 102, a rotating shaft 406 that connects the louver bodies 401 and the square tube 102, and a stepper motor 407 that is fixed to the side of the square tube 102 and installed by bolts.

[0042] Furthermore, the stepper motor 407 can drive the rotating shaft 406 to rotate, thereby driving the louver body 401 to rotate, realizing the opening and closing of the louver body 401, and preventing dust from entering the exhaust fan duct 101 through the louver body 401.

[0043] Specifically, the louver assembly 4 also includes a drive gear 408 fixed to the power output end of the stepper motor 407, a connecting rack 405 meshing with the side of the drive gear 408, and a driven gear 404 meshing with the side of the connecting rack 405.

[0044] Furthermore, the power output end of the stepper motor 407 can drive the drive gear 408 to rotate, and then the drive gear 408 drives the connecting rack 405 to move through its teeth, and the connecting rack 405 can drive the remaining driven gear 404 to rotate.

[0045] Specifically, the driven gear 404 and the driving gear 408 are fixedly connected to the rotating shaft 406, with the driving gear 408 located on the rotating shaft 406 in the middle of the square tube 102.

[0046] Furthermore, the driven gear 404 and the driving gear 408 can rotate synchronously under the transmission action of the connecting rack 405, thereby achieving the effect that all louver bodies 401 can be angled.

[0047] Specifically, a rubber pad 402 is fixedly attached to the top of the louver body 401, and a sealing groove 403 matching the rubber pad 402 is provided at the bottom of the louver body 401.

[0048] Furthermore, when the louver body 401 is in a vertical position, the rubber pad 402 is stuck inside the sealing groove 403, thereby filling the gap between the louver bodies 401.

[0049] Specifically, the fan assembly 3 includes a dust cover 301 fixed to the rear end of the exhaust fan duct 101, and a fan 302 installed on one side of the dust cover 301. The side of the exhaust fan duct 101 closest to the dust cover 301 is located inside the cold storage.

[0050] Furthermore, the rotation of fan 302 can expel the air inside the cold storage.

[0051] During operation, the fan 302 rotates simultaneously with the stepper motor 407. The power output of the stepper motor 407 drives the drive gear 408 to rotate, which in turn drives the connecting rack 405 to move via its teeth. The connecting rack 405 then drives the remaining driven gear 404 to rotate, and they rotate synchronously under the transmission action of the connecting rack 405. This drives the rotating shaft 406 to rotate, which in turn drives the louver body 401 to rotate, thus opening the louver body 401. At this time, the fan 302 can exhaust the air in the cold storage to the outside. When the fan 302 stops working, the stepper motor 407 rotates in the opposite direction, and the louver body 401 closes inward and is in a vertical state, which can prevent dust from entering the exhaust fan duct 101 through the louver body 401.

[0052] In summary, through the louver assembly 4, the driven gear 404 and the driving gear 408 can rotate synchronously under the transmission action of the connecting rack 405, thereby achieving the effect that all louver bodies 401 can be angled. When the fan 302 rotates, the louver body 401 opens and exhausts air outward. When the fan 302 stops, the stepper motor 407 rotates in the opposite direction, and the louver body 401 closes, preventing dust from entering the exhaust fan duct 101 through the louver body 401.

[0053] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0054] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0055] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A novel cold storage exhaust fan, characterized in that: include: The duct assembly (1) includes a U-shaped exhaust fan duct (101), a drain pipe (103) located in the middle of the bottom of the exhaust fan duct (101), a fan assembly (3) located at the rear end of the exhaust fan duct (101), and a louver assembly (4) located at the front end of the exhaust fan duct (101). The water supply assembly (2) includes a water tank (201) installed on one side of the exhaust fan pipe (101), a delivery pipe (204) fixed between the water tank (201) and the exhaust fan pipe (101), and an electric heater (202) fixed on the side of the water tank (201).

2. The novel cold storage exhaust fan according to claim 1, characterized in that: The water tank (201) is connected to the exhaust fan pipe (101) via a water pump (203) and a delivery pipe (204), with the delivery pipe (204) located above the middle of the exhaust fan pipe (101).

3. A novel cold storage exhaust fan according to claim 2, characterized in that: The pipe assembly (1) also includes a drain valve (104) fixed in the middle of the drain pipe (103) and a square tube (102) welded to the front end of the exhaust fan pipe (101), and the louver assembly (4) is installed inside the square tube (102).

4. A novel cold storage exhaust fan according to claim 3, characterized in that: The louver assembly (4) includes a plurality of louver bodies (401) evenly distributed at equal intervals inside the square tube (102), a rotating shaft (406) connected to the connection between the louver body (401) and the square tube (102), and a stepper motor (407) fixed to the side of the square tube (102) by bolts.

5. A novel cold storage exhaust fan according to claim 4, characterized in that: The louver assembly (4) further includes a drive gear (408) fixed to the power output end of the stepper motor (407), a connecting rack (405) meshing with the side of the drive gear (408), and a driven gear (404) meshing with the side of the connecting rack (405).

6. A novel cold storage exhaust fan according to claim 5, characterized in that: The driven gear (404) and the driving gear (408) are fixedly connected to the rotating shaft (406), and the driving gear (408) is located on the rotating shaft (406) in the middle of the square tube (102).

7. A novel cold storage exhaust fan according to claim 6, characterized in that: A rubber pad (402) is fixedly attached to the top of the louver body (401), and a sealing groove (403) matching the rubber pad (402) is opened at the bottom of the louver body (401).

8. A novel cold storage exhaust fan according to claim 7, characterized in that: The fan assembly (3) includes a dust cover (301) fixed to the rear end of the exhaust fan duct (101) and a fan (302) installed on one side of the dust cover (301). The side of the exhaust fan duct (101) near the dust cover (301) is located inside the cold storage.

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