A portable low-frequency alternating electromagnetic field cold storage preservation device

Abstract

This application discloses a portable low-frequency alternating electromagnetic field cold storage preservation device, including a base, an electromagnetic field generator, and a protective cover. The electromagnetic field generator is mounted on the base, and the protective cover is mounted on the base and covers the outside of the electromagnetic field generator. A ventilation window is provided on the side wall of the protective cover, and a dust filter is provided at the ventilation window. A protective baffle is provided inside the ventilation window, with its lower edge extending downwards to below the ventilation window. A water receiving seat is provided on the inner side wall of the protective cover, and a water receiving trough is provided on the water receiving seat. The lower end of the protective baffle extends into the water receiving trough, forming an air passage between the protective baffle and the water receiving seat for airflow. This application can effectively dissipate heat from the device and simultaneously collect and discharge condensate entering the device.

Description

Technical Field

[0001] This application relates to the technical field of preservation equipment, and in particular to a portable low-frequency alternating electromagnetic field cold storage preservation equipment. Background Technology

[0002] Low-frequency alternating electromagnetic field cold storage preservation technology refers to the use of equipment to generate a uniform electromagnetic field to cover the storage space, causing water molecules and ions to oscillate in an orderly manner, reducing cell membrane permeability and minimizing nutrient loss; at the same time, the electromagnetic field can inhibit the reproduction of microorganisms and extend the shelf life.

[0003] Chinese invention patent with publication number CN119092249A discloses a low-frequency alternating electromagnetic field cover, including a power inlet, a grounding inlet, a grounding foot, a cylindrical electrode, a plastic-encapsulated shell, and a grounding foot base. The grounding foot is integrally formed with a grounding foot base, and a section of the plastic-encapsulated shell is mounted on the grounding foot base. The cylindrical electrode is placed inside the plastic-encapsulated shell, and the grounding inlet of the cylindrical electrode is completed by a grounding stainless steel plate at the bottom of the grounding foot.

[0004] The aforementioned invention uses a cylindrical motor to generate an electromagnetic field for preserving fruits and vegetables, and seals the device with a plastic casing. However, during long-term use, the electromagnetic field generates heat that is difficult to dissipate, and the sealing method can affect the lifespan of the device; therefore, improvements are needed. Utility Model Content

[0005] To address the issue of overheating during long-term use of equipment, this application provides a portable low-frequency alternating electromagnetic field cold storage preservation device.

[0006] This application provides a portable low-frequency alternating electromagnetic field cold storage preservation device, which adopts the following technical solution:

[0007] A portable low-frequency alternating electromagnetic field cold storage preservation device includes a base, an electromagnetic field generator, and a protective cover;

[0008] The electromagnetic field generator is mounted on the base, and the protective cover is mounted on the base and covers the outside of the electromagnetic field generator;

[0009] The protective cover has a ventilation window on its side wall, a dust filter is installed at the ventilation window, and a protective baffle is provided inside the ventilation window of the protective cover, with the lower edge of the protective baffle extending downward to below the ventilation window.

[0010] A water receiving seat is provided on the inner wall of the protective cover, and a water receiving groove is provided on the water receiving seat. The lower end of the protective baffle extends into the water receiving groove, and an air passage is formed between the protective baffle and the water receiving seat for airflow to pass through.

[0011] By adopting the above technical solutions, the base can support the electromagnetic field generator; the protective cover is installed on the outside of the electromagnetic field generator to protect it; the ventilation window allows air to circulate inside and outside the protective cover, reducing the heating problem of the electromagnetic field generator and extending the service life of the equipment; the dust filter can prevent dust from entering the protective cover; the protective baffle can block dust and water splashing in, and its lower edge extends to the bottom of the ventilation window for better protection; the water receiving base and water receiving tank can collect the water flowing down the protective baffle, and the air passage between the protective baffle and the water receiving base can ensure normal airflow.

[0012] Optionally, the water receiving seat includes a bottom baffle and a side baffle. The bottom baffle is disposed on the side wall of the protective cover, and the side baffle is disposed on the side of the protective cover away from the side wall of the protective cover. The upper surface of the side baffle is higher than the lower surface of the vent.

[0013] By adopting the above technical solution, a water receiving seat is formed by using a bottom baffle and a side baffle. The height of the upper surface of the side baffle is greater than the height of the lower surface of the vent. When condensate accumulates in the water receiving tank and the water level is high, the height difference can allow the water to be discharged from the vent.

[0014] Optionally, a drainage hole is provided on the outer wall of the protective cover. The drainage hole extends obliquely upward and forms a drainage outlet on the inner wall of the protective cover. The drainage outlet is connected to the water receiving tank.

[0015] By adopting the above technical solution, the drain hole is connected to the water receiving tank, which can drain the water accumulated in the water receiving tank from the protective cover. The drain hole extends upward at an angle to prevent external dust, debris and other objects from entering the water receiving tank and the interior of the protective cover through the drain hole, thereby protecting the electromagnetic field generator and extending the service life of the equipment.

[0016] Optionally, the protective cover is provided with a connecting pipe and a drain pipe at the drain hole. The connecting pipe is provided with an external thread, and the drain pipe is provided with an internal thread that is threaded to the connecting pipe.

[0017] By adopting the above technical solution, the connecting pipe and the drain pipe are connected by threads, which facilitates the installation and disassembly of the drain pipe, makes it easier to clean and maintain the drainage structure, and ensures the normal operation of the equipment's drainage function.

[0018] Optionally, a sealing cap may be detachably provided on the drain pipe, the sealing cap being threaded onto the connecting pipe and sealing the connecting pipe.

[0019] By adopting the above technical solution, when the equipment is not draining water, the sealing cap can be threaded onto the connecting pipe to seal the connecting pipe, preventing external dust, moisture and other impurities from entering the protective cover.

[0020] Optionally, the protective cover, the dust filter, and the protective baffle are all made of plastic.

[0021] By adopting the above technical solutions, the equipment is lighter and easier to carry, and the plastic material has a lower impact on the propagation of electromagnetic fields.

[0022] Optionally, a connecting ring is provided on the base, and a connecting groove is opened on the connecting ring for the lower end of the protective cover to be inserted. The protective cover is threadedly connected to the side wall of the connecting groove.

[0023] By adopting the above technical solution, the connecting ring and connecting groove on the base facilitate the installation and positioning of the protective cover, and the threaded connection makes it easy to disassemble the protective cover for maintenance.

[0024] Optionally, the connecting ring is provided with an elastic sealing ring on the bottom wall of the connecting groove.

[0025] By adopting the above technical solution and setting an elastic sealing ring on the bottom wall of the connecting groove, the sealing performance of the connection between the protective cover and the base can be effectively enhanced, preventing external dust, moisture and other substances from entering the protective cover and affecting the normal operation of the electromagnetic field generator.

[0026] Optionally, it also includes a support base for supporting the base, wherein the base has an outlet hole through which the power supply line passes.

[0027] Optionally, the upper end of the support base is provided with a threaded rod, and the lower end of the base is provided with a connecting post, with the threaded rod threadedly connected to the connecting post.

[0028] By adopting the above technical solution, an adjustable connection between the support base and the base can be achieved, making it easy to adjust the height and level of the equipment according to the actual situation.

[0029] In summary, this application includes at least one of the following beneficial effects:

[0030] 1. The ventilation window allows air to circulate inside and outside the protective cover, solving the problem of heat generation during long-term use of electromagnetic fields, which is beneficial for heat dissipation and extends the service life of the equipment;

[0031] 2. The dust filter can prevent dust from entering the protective cover, thus avoiding dust affecting the normal operation of the electromagnetic field generator;

[0032] 3. The water receiving base and protective baffle work together to prevent water from entering the protective cover and protect the electromagnetic field generator. Attached Figure Description

[0033] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0034] Figure 2 This is a cross-sectional structural diagram of an embodiment of this application;

[0035] Figure 3 yes Figure 2Enlarged structural diagram at point A;

[0036] Figure 4 This is a structural schematic diagram at the bottom of an embodiment of this application.

[0037] Explanation of reference numerals in the attached drawings: 1. Base; 11. Cable outlet; 12. Connecting post; 2. Electromagnetic field generator; 3. Protective cover; 31. Drain hole; 32. Connecting pipe; 33. Drain pipe; 4. Dust filter; 5. Protective baffle; 6. Water receiving base; 61. Water receiving trough; 62. Bottom baffle; 63. Side baffle; 7. Connecting ring; 8. Elastic sealing ring; 9. Support base; 91. Threaded rod. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0039] This application discloses a portable low-frequency alternating electromagnetic field cold storage preservation device. (Refer to...) Figure 1 The cold storage preservation equipment includes a base 1, an electromagnetic field generator 2, and a protective cover 3. The base 1 provides basic support and can be made of metal or high-strength plastic. The electromagnetic field generator 2, mounted on the base 1, generates the required low-frequency alternating electromagnetic field to preserve food in the cold storage. The protective cover 3 is mounted on the base 1 and covers the electromagnetic field generator 2, protecting it from external interference.

[0040] Reference Figure 1 and Figure 2 In this embodiment, the protective cover 3 is configured as a cylindrical structure with an opening at the bottom. A ventilation window is provided on the side wall of the protective cover 3. A dust filter can be detachably fixed at the ventilation window to allow air to enter and exit, so as to avoid the problem that the temperature of the electromagnetic field generator 2 will rise during operation due to the enclosed space, which will affect the equipment.

[0041] Specifically, the ventilation window can be shaped as a rectangular opening with a certain curvature. Stepped grooves can be provided around the ventilation window, and a dust filter is embedded in these grooves and secured with countersunk bolts. To minimize the impact on the diffusion of electromagnetic fields, the protective cover 3 and the dust filter are preferably made of plastic, and the dust filter is preferably designed with a fine structure to ensure dust protection. The ventilation window allows for air circulation between the inside and outside of the protective cover 3, aiding in heat dissipation; simultaneously, the dust filter blocks dust, protecting the internal equipment.

[0042] Reference Figure 2 and Figure 3In this embodiment, a protective baffle 5 is also provided on the inner wall of the protective cover 3. The entire area of ​​the protective baffle 5 is equal to that of the ventilation window, and its upper end and left and right sides are sealed to the inner wall of the protective cover 3. The protective baffle 5 and the protective cover 3 are made of the same material, and preferably can be connected and fixed by integral molding. In other embodiments, bolts can also be used for fixing, in which case a sealing structure needs to be provided at the connection. The lower edge of the protective baffle 5 extends downward to below the ventilation window, and a certain space is formed between the protective baffle 5 and the ventilation window to prevent moisture from directly entering the interior of the protective cover 3.

[0043] Furthermore, a water receiving seat 6 is also provided on the inner wall of the protective cover 3. The water receiving seat 6 includes a bottom baffle 62 and a side baffle 63. The bottom baffle 62 can also be fixed to the side wall of the protective cover 3 by means of integral molding, etc. The side baffle 63 is fixed to the side of the bottom baffle 62 away from the side wall of the protective cover 3, and both ends of the side baffle 63 are connected to the inner wall of the protective cover 3. A water receiving groove 61 is provided above the water receiving seat 6, that is, a water receiving groove 61 is formed between the bottom baffle 62, the side baffle 63 and the inner wall of the protective cover 3. The lower end of the protective baffle 5 extends into the unlocking groove to form a "U"-shaped air passage.

[0044] Because the equipment generates heat during operation, the temperature of the protective baffle 5 will be higher than that of the outside cold air. Therefore, when outside air enters the protective cover 3 through the vent, it may condense water droplets when it comes into contact with the relatively warm air inside the protective cover 3 and the side wall of the protective baffle 5. At this time, the water droplets will drip down the protective baffle 5 into the water collection tank 61. Meanwhile, the air passage formed between the water collection base 6 and the protective baffle 5 can increase the path of the gas and increase the possibility of the gas contacting the side wall, which not only ensures the air circulation, but also guides any water that may enter into the water collection tank 61.

[0045] Furthermore, the height of the upper surface of the side baffle 63 is greater than the height of the lower surface of the vent. By setting the height difference, even if the water level in the water tank 61 is high, or if an accident such as water spilling onto the equipment occurs, water will overflow along the vent.

[0046] Reference Figure 2 and Figure 3 In this embodiment, a drain hole 31 is provided on the outer wall of the protective cover 3. The drain hole 31 extends upward at an angle toward the inner side of the protective cover 3 and forms a drain outlet on the inner wall of the protective cover 3. The drain outlet is connected to the water receiving tank 61. The drain hole 31 can be used to drain the water accumulated in the drain tank in a timely manner, and the inclined design can prevent external water from flowing back into the water receiving tank 61.

[0047] A connecting pipe 32 is fixedly installed on the outer wall of the protective cover 3 at the drain hole 31. The outer wall of the connecting pipe 32 is threaded. The protective cover 3 is also equipped with a drain pipe 33, which has an internal thread that connects to the connecting pipe 32, thus enabling a detachable connection. Water in the water tank 61 can be drained promptly through the drain pipe 33. In this embodiment, the drain pipe 33 is made of plastic or similar material and is a rigid pipe. In other embodiments, a flexible hose can also be connected to the connecting pipe 32 for drainage.

[0048] Alternatively, a sealing cap (not shown in the figure) can be provided on the connecting pipe 32. The sealing cap can also be provided with internal threads to connect with the connecting pipe 32. It can seal the connecting pipe 32 and prevent dust and moisture from entering the drain hole 31 when drainage is not required.

[0049] Reference Figure 2 and Figure 3 In this embodiment, a connecting ring 7 is fixedly mounted on the upper surface of the base 1 in a one-piece molding process. A connecting groove is formed on the upper surface of the connecting ring 7 for the lower end of the protective cover 3 to be inserted into. The protective cover 3 is threadedly connected to the side wall of the connecting groove. This connection method facilitates disassembly and installation and provides a certain degree of sealing. Furthermore, an elastic sealing ring 8 is provided on the bottom wall of the connecting groove on the connecting ring 7. The elastic sealing ring 8 is typically made of elastic materials such as rubber, which enhances the sealing between the protective cover 3 and the base 1, preventing moisture from entering from the connection point.

[0050] Reference Figure 1 and Figure 4 In this embodiment, the device further includes a support base 9 for supporting the base 1, with a power supply cable outlet hole 11 on the base 1. A threaded rod 91 is fixedly installed on the upper end of the support base 9, and a connecting column 12 is fixedly installed on the lower surface of the base 1. The shape of the connecting column 12 is not limited and can be a cylinder, rectangular column, etc. The upper end of the threaded rod 91 is threadedly connected to the connecting column 12. By adjusting the threaded connection length between the threaded rod 91 and the connecting column 12, the height and level of the device can be adjusted to adapt to different placement environments. At the same time, multiple support bases 9 are arranged around the circumference of the base 1, and each support base 9 can be adjusted independently. Therefore, when the cold storage floor is uneven, the cooperation between the threaded rod 91 and the connecting column 12 can also achieve the effect of leveling the device.

[0051] The implementation principle of this embodiment is as follows: The portable low-frequency alternating electromagnetic field cold storage preservation equipment protects the electromagnetic field generator 2 through the protective cover 3. The ventilation window and dust filter ensure air circulation and heat dissipation while preventing dust from entering. The design of the protective baffle 5 and the water receiving base 6 effectively blocks and collects moisture. The design of the drain hole 31, connecting pipe 32, and drain pipe 33 allows for timely drainage of accumulated water in the water receiving base 6. The detachable design of the connecting ring 7 and the protective cover 3 facilitates maintenance of the internal equipment. The support base 9 allows for adjustment of the equipment's height and level.

[0052] The overall design ensures proper heat dissipation of the equipment while also providing excellent dust and water resistance, extending the equipment's service life and improving its stability and reliability in cold storage environments. Compared to existing technologies, it effectively solves the problem of poor heat dissipation due to sealing affecting equipment lifespan.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portable low-frequency alternating electromagnetic field cold storage preservation device, characterized in that: Includes a base (1), an electromagnetic field generator (2), and a protective cover (3); The electromagnetic field generator (2) is mounted on the base (1), and the protective cover (3) is mounted on the base (1) and covers the outside of the electromagnetic field generator (2). The protective cover (3) has a ventilation window on its side wall, and a dust filter is provided at the ventilation window. The protective cover (3) has a protective baffle (5) inside the ventilation window, and the lower edge of the protective baffle (5) extends downward to the bottom of the ventilation window. A water receiving seat (6) is provided on the inner wall of the protective cover (3), and a water receiving groove (61) is provided on the water receiving seat (6). The lower end of the protective baffle (5) extends into the water receiving groove (61), and an air passage is formed between the protective baffle (5) and the water receiving seat (6) for airflow to pass through.

2. The portable low-frequency alternating electromagnetic field cold storage device according to claim 1, characterized in that: The water receiving seat (6) includes a bottom baffle (62) and a side baffle (63). The bottom baffle (62) is disposed on the side wall of the protective cover (3), and the side baffle (63) is disposed on the side of the protective cover (3) away from the side wall of the protective cover (3). The height of the upper surface of the side baffle (63) is greater than the height of the lower surface of the vent window.

3. The portable low-frequency alternating electromagnetic field cold storage device according to claim 2, characterized in that: The outer wall of the protective cover (3) is provided with a drain hole (31), the drain hole (31) extends upward at an angle and forms a drain outlet on the inner wall of the protective cover (3), and the drain outlet is connected to the water receiving tank (61).

4. The portable low-frequency alternating electromagnetic field cold storage device according to claim 3, characterized in that: The protective cover (3) is provided with a connecting pipe (32) and a drain pipe (33) at the drain hole (31). The connecting pipe (32) is provided with an external thread, and the drain pipe (33) is provided with an internal thread that is threadedly connected to the connecting pipe (32).

5. The portable low-frequency alternating electromagnetic field cold storage device according to claim 4, characterized in that: A sealing cap is detachably provided on the drain pipe (33), and the sealing cap can be threaded onto the connecting pipe (32) and close the connecting pipe (32).

6. The portable low-frequency alternating electromagnetic field cold storage device according to claim 1, characterized in that: The protective cover (3), the dust filter and the protective baffle (5) are all made of plastic.

7. The portable low-frequency alternating electromagnetic field cold storage device according to claim 1, characterized in that: A connecting ring (7) is provided on the base (1), and a connecting groove is opened on the connecting ring (7) for the lower end of the protective cover (3) to be inserted. The protective cover (3) is threadedly connected to the side wall of the connecting groove.

8. The portable low-frequency alternating electromagnetic field cold storage device according to claim 7, characterized in that: The connecting ring (7) is provided with an elastic sealing ring (8) on the bottom wall of the connecting groove.

9. The portable low-frequency alternating electromagnetic field cold storage device according to claim 1, characterized in that: It also includes a support base (9) for supporting the base (1), and the base (1) has an outlet hole (11) through which the power supply line passes.

10. A portable low-frequency alternating electromagnetic field cold storage preservation device according to claim 9, characterized in that: The upper end of the support base (9) is provided with a threaded rod (91), and the lower end of the base (1) is provided with a connecting column (12). The threaded rod (91) is threadedly connected to the connecting column (12).

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