A mobile defrosting freezer

Abstract

The present application relates to cold storage technical field, specifically for a kind of mobile defrosting freezer, including freezer main body, mounting plate, unit, blowing device and moving device, mounting plate and freezer main body bottom surface are attached, multiple units are set on mounting plate, unit includes fixed plate, hot bimetal, electric heating plate, electrified pole and conducting rod, fixed plate is connected with mounting plate by connecting plate, gap exists between the fixed plate of adjacent unit, hot bimetal is set in gap site and connects adjacent fixed plate, electric heating plate is set on the top surface of hot bimetal, electrified pole is respectively set on the both sides of freezer main body, conducting rod and electric heating plate position match, the top of conducting rod is connected with mounting plate by nitrogen spring, blowing device can blow to freezer main body bottom, moving device is used to drive blowing device to move, by mounting seat and mounting seat cooperation, ice and frost are acted from two sides, so that ice and frost are gradually broken according to unit, the efficiency and rate of deicing can be improved.

Description

Technical Field

[0001] This invention relates to the field of cold storage, and in particular to a mobile defrosting freezer. Background Technology

[0002] A cold storage facility is a storage device that uses artificial refrigeration to maintain a constant temperature and humidity environment. It can be used to store food, medicine and other items. Since different items have different storage requirements (e.g., fruits and vegetables 0-8℃, meat and frozen foods -18-25℃), and in order to reduce energy consumption, cold storage facilities are often designed with separate rooms, using different cold rooms and freezers to store different types of items.

[0003] Frost easily condenses on the bottom of freezers, requiring frequent maintenance to prevent the frost thickness from gradually increasing. Since the frost is in sheet form and adheres to the bottom of the freezer, it is difficult to remove due to its high bonding strength. The purpose of this invention is to propose a freezer structure that can quickly remove frost to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to provide a portable defrosting freezer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: including a freezer body, a mounting plate, a unit, an air blowing device, and a moving device. The freezer body is used to store frozen products, and a support part is provided at the bottom of the freezer body to support the freezer body and separate the freezer body from the ground.

[0006] The mounting plate is attached to the bottom surface of the freezer body. The function of the mounting plate is to connect the freezer body and the unit and provide a mounting surface for the unit. A plurality of the units are mounted on the mounting plate. The unit includes a fixing plate, a hot bimetallic plate, an electric heating plate, an electric rod and a conductive rod.

[0007] The fixing plate is connected to the mounting plate through the connecting plate. There is a gap between the fixing plates of adjacent units. The thermal bimetallic plate is set in the gap and connects to the adjacent fixing plates. The thermal bimetallic plate refers to a plate-shaped component made of thermal bimetal. Thermal bimetal refers to a metal composed of two metals with different coefficients of thermal expansion in the prior art. Due to the difference in coefficients of thermal expansion, the thermal bimetal will bend after heating. In specific implementation, different types of metals can be selected to make thermal bimetallic plates according to actual needs.

[0008] The heating plate is disposed on the top surface of the bimetallic plate. The heating plate refers to a plate-shaped component that can generate heat after being energized in the prior art. It is prior art and is known to those skilled in the art. Therefore, its specific structure and working principle will not be further explained.

[0009] The power-conducting rods are respectively installed on both sides of the freezer body, and the connecting plate has an opening for the power-conducting rods to pass through. Here, the power-conducting rod refers to a rod-shaped component that is energized. The power-conducting rod is connected to an external power source to achieve energization.

[0010] The conductive rod is positioned to match the heating plate. The top of the conductive rod is connected to the mounting plate via a nitrogen spring. The conductive rod is equipped with a contact. When the conductive rod moves down, the contact can abut against the energized rod. The conductive rod refers to a rod-shaped component that performs the conductive function. Specifically, it is made of metal. Technicians can select metals with different compositions according to actual needs, thereby changing the Curie point temperature of the conductive rod.

[0011] The air blowing device blows air into the bottom of the freezer body, and the moving device is used to move the air blowing device. The moving device and the conductive rod attract each other.

[0012] To optimize the above technical solution, the following measures are further taken: the air blowing device includes a storage tank and a nozzle. The storage tank is connected to an external pressurizing device, and the nozzle is connected to the storage tank through a pipe and is tilted towards the bottom of the freezer body. In specific implementation, components such as solenoid valves and check valves can be installed on the pipe to realize automated control of the air output from the nozzle.

[0013] As a further improvement to the above technical solution: the moving device includes a guide rail, a mounting base, an electromagnet, and a geared motor. The guide rail is fixedly connected to the support on both sides of the freezer body. The end of the mounting base cooperates with the guide rail to form a sliding pair. In specific implementation, the guide rail and the mounting base are respectively provided with a sliding groove and a slider to form a sliding pair. The nozzle is set on the mounting base. The electromagnet is installed at the front end of the mounting base. After the electromagnet is energized, it attracts the conductive rod, so that the moving device and the conductive rod attract each other. The shaft of the geared motor is connected to a screw. The screw passes through the mounting base and forms a helical pair with the mounting base along the direction of movement of the blowing device. Since the screw and the mounting base form a helical pair, the forward and reverse rotation of the geared motor shaft can drive the mounting base to move back and forth. Here, the electromagnet refers to a device that can generate magnetism after being energized in the prior art. It belongs to the prior art and is known to those skilled in the art. Therefore, its specific structure and working principle will not be further explained. Technicians can change the magnetic strength of the electromagnet by changing the number of coil turns, the current, and other conditions to adapt to actual needs.

[0014] As a further improvement to the technical solution: the moving device also includes a vibrating plate. The bottom of the vibrating plate is connected to the mounting base via a spring. The vibrating plate is inclined and its front end abuts against the top surface of the guide rail. The purpose of abutting against the top surface of the guide rail is to scrape off the frost that falls on the top surface of the guide rail, so as to prevent the frost from affecting the movement of the mounting base on the top surface of the guide rail. Here, the vibrating plate refers to a plate-shaped component that can vibrate. Since the vibrating plate is connected to the mounting base via a spring, when frost falls on the vibrating plate, the vibrating plate can vibrate, thereby prolonging the collision time and reducing the peak collision force. The vibration process helps the frost slide off the vibrating plate and also facilitates the frost to break during the vibration process, reducing its volume and making it easier to slide off.

[0015] As an improvement to the aforementioned technical solution: the rear end of the vibrating plate is adjacent to the nozzle. During the airflow process of the nozzle, the airflow can drive the vibrating plate to vibrate, which can increase the vibration frequency of the vibrating plate and help the frost falling on the vibrating plate to slide off.

[0016] Furthermore, it also includes a polytetrafluoroethylene (PTFE) film that surrounds the mounting plate and unit. PTFE has good high-temperature resistance and will not be damaged by the heating of the electric heating plate. In addition, PTFE has a very low surface friction coefficient, which helps to reduce the adhesion between frost and the PTFE surface and facilitates the peeling off of frost.

[0017] Preferably, the unit contains two conductive rods, which are connected by non-conductive rubber rods. The purpose of the rubber rods is to connect the conductive rods and ensure that the displacement of the conductive rods on both sides is consistent.

[0018] As can be seen from the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

[0019] A. By utilizing the electromagnet on the mounting base to interact with the units located at different positions on the bottom of the freezer body during the movement, and in conjunction with the pressurized gas sprayed from the nozzle, large areas of frost can be removed evenly by unit from local to overall, resulting in a good frost removal effect.

[0020] B. The top surface of the frost at the mounting base unit undergoes localized melting and is squeezed by the hot bimetallic plate, while the bottom surface of the frost is impacted by pressurized gas ejected from the nozzle. This action on the frost from both sides helps to break it off quickly and facilitates rapid separation of the frost from the bottom of the freezer body, resulting in high frost removal efficiency and speed. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2This is a schematic diagram of the disassembly structure of the present invention. Figure 1 ;

[0024] Figure 3 This is a schematic diagram of the disassembly structure of the present invention. Figure 2 ;

[0025] Figure 4 for Figure 3 Enlarged view of a specific area;

[0026] Figure 5 This is a schematic diagram of the disassembly structure of the present invention. Figure 3 ;

[0027] Figure 6 for Figure 5 Enlarged view of a specific area;

[0028] Figure 7 This is a schematic diagram of the disassembly structure of the present invention. Figure 4 ;

[0029] Figure 8 for Figure 7 Enlarged view of a specific area;

[0030] In the diagram: Freezer body - 100, Support section - 101, Mounting plate - 200, Unit - 300, Fixing plate - 301, Bimetallic heating plate - 302, Heating plate - 303, Power rod - 304, Conductive rod - 305, Connecting plate - 306, Gap - 307, Opening - 308, Nitrogen spring - 309, Contact - 3010, Rubber rod - 3011, Storage tank - 401, Nozzle - 402, Guide rail - 501, Mounting base - 502, Electromagnet - 503, Gear motor - 504, Vibrating plate - 505, Spring - 506, Screw - 507, PTFE film - 600 Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0032] Please see Figure 1-7 The present invention provides a mobile defrosting freezer, including a freezer body 100, a mounting plate 200, a unit 300, an air blowing device, a moving device, and a polytetrafluoroethylene film 600. A support part 101 is provided at the bottom of the freezer body 100.

[0033] The mounting plate 200 is attached to the bottom surface of the freezer body 100.

[0034] A plurality of the aforementioned units 300 are disposed on the mounting plate 200. Each unit 300 includes a fixing plate 301, a thermal bimetallic plate 302, an electric heating plate 303, an electric rod 304, and a conductive rod 305.

[0035] The fixing plate 301 is connected to the mounting plate 200 via the connecting plate 306. There is a gap 307 between the fixing plates 301 of adjacent units 300. The hot bimetallic plate 302 is disposed at the gap 307 and connects to the adjacent fixing plates 301.

[0036] The heating plate 303 is disposed on the top surface of the bimetallic plate 302.

[0037] The power-conducting rods 304 are respectively installed on both sides of the freezer body 100, and the connecting plate 306 has an opening 308 for the power-conducting rods 304 to pass through.

[0038] The conductive rod 305 is positioned to match the heating plate 303. The top of the conductive rod 305 is connected to the mounting plate 200 via a nitrogen spring 309. A contact 3010 is provided on the conductive rod 305. When the conductive rod 305 moves down, the contact 3010 can abut against the energized rod 304. There are two conductive rods 305 in the unit 300, and the conductive rods 305 are connected to each other via a non-conductive rubber rod 3011.

[0039] The air blowing device can blow air to the bottom of the freezer body 100. The air blowing device includes a storage tank 401 and a nozzle 402. The storage tank 401 is connected to an external pressurization device, and the nozzle 402 is connected to the storage tank 401 through a pipe and is tilted towards the bottom surface of the freezer body 100.

[0040] The moving device is used to drive the air blowing device to move. The moving device and the conductive rod 305 attract each other. The moving device includes a guide rail 501, a mounting base 502, an electromagnet 503, and a reduction motor 504. The guide rail 501 is respectively set on both sides of the freezer body 100 and fixedly connected to the support part 101. The end of the mounting base 502 cooperates with the guide rail 501 to form a moving pair. The nozzle 402 is set on the mounting base 502. The electromagnet 503 is installed at the front end of the mounting base 502. After the electromagnet 503 is energized, it attracts the conductive rod 305, so that the moving device and the conductive rod 305 attract each other. The shaft of the reduction motor 504 is connected to the screw 507. The screw 507 passes through the mounting base 502 and forms a helical pair with the mounting base 502 along the moving direction of the air blowing device.

[0041] The polytetrafluoroethylene film 600 surrounds the mounting plate 200 and the unit 300. Example 2

[0042] Please see Figure 1-8The present invention provides a mobile defrosting freezer, including a freezer body 100, a mounting plate 200, a unit 300, an air blowing device, a moving device, and a polytetrafluoroethylene film 600. A support part 101 is provided at the bottom of the freezer body 100.

[0043] The mounting plate 200 is attached to the bottom surface of the freezer body 100.

[0044] A plurality of the aforementioned units 300 are disposed on the mounting plate 200. Each unit 300 includes a fixing plate 301, a thermal bimetallic plate 302, an electric heating plate 303, an electric rod 304, and a conductive rod 305.

[0045] The fixing plate 301 is connected to the mounting plate 200 via the connecting plate 306. There is a gap 307 between the fixing plates 301 of adjacent units 300. The hot bimetallic plate 302 is disposed at the gap 307 and connects to the adjacent fixing plates 301.

[0046] The heating plate 303 is disposed on the top surface of the bimetallic plate 302.

[0047] The power-conducting rods 304 are respectively installed on both sides of the freezer body 100, and the connecting plate 306 has an opening 308 for the power-conducting rods 304 to pass through.

[0048] The conductive rod 305 is positioned to match the heating plate 303. The top of the conductive rod 305 is connected to the mounting plate 200 via a nitrogen spring 309. A contact 3010 is provided on the conductive rod 305. When the conductive rod 305 moves down, the contact 3010 can abut against the energized rod 304. There are two conductive rods 305 in the unit 300, and the conductive rods 305 are connected to each other via a non-conductive rubber rod 3011.

[0049] The air blowing device can blow air to the bottom of the freezer body 100. The air blowing device includes a storage tank 401 and a nozzle 402. The storage tank 401 is connected to an external pressurization device, and the nozzle 402 is connected to the storage tank 401 through a pipe and is tilted towards the bottom surface of the freezer body 100.

[0050] The moving device is used to drive the blowing device to move. The moving device and the conductive rod 305 attract each other. The moving device includes a guide rail 501, a mounting base 502, an electromagnet 503, a reduction motor 504, and a vibrating plate 505. The guide rail 501 is respectively disposed on both sides of the freezer body 100 and fixedly connected to the support part 101. The end of the mounting base 502 cooperates with the guide rail 501 to form a moving pair. The nozzle 402 is disposed on the mounting base 502. The electromagnet 503 is mounted on the mounting base. At the front end of 502, the electromagnet 503 attracts the conductive rod 305 after being energized, so that the moving device and the conductive rod 305 attract each other. The shaft of the reduction motor 504 is connected to the screw 507. The screw 507 passes through the mounting base 502 and forms a helical pair with the mounting base 502 along the moving direction of the blowing device. The bottom of the vibrating plate 505 is connected to the mounting base 502 through the spring 506. The vibrating plate 505 is inclined and its front end abuts against the top surface of the guide rail 501. The rear end of the vibrating plate 505 is adjacent to the nozzle 402.

[0051] The polytetrafluoroethylene film 600 surrounds the mounting plate 200 and the unit 300.

[0052] Working principle: For Examples 1 and 2, the external pressurization device stores pressurized gas in the storage tank 401. After the freezer body 100 has solidified frost at the bottom, the moving device drives the blowing device to move along the bottom of the freezer body 100. The pressurized gas is sprayed out from the nozzle 402 and acts on the frost at the bottom of the freezer body 100, thereby causing the frost to separate from the freezer body 100.

[0053] The mounting base 502 moves to the bottom of the unit 300. As the electromagnet 503 and the conductive rod 305 attract each other, the conductive rod 305 will cause the nitrogen spring 309 to deform and press against the heating plate 303. During the process, the contact 3010 connected to the conductive rod 305 can act on the energized rod 304. The current on the energized rod 304 acts on the heating plate 303 through the conductive rod 305, causing the heating plate 303 to generate heat. The heat can cause the frost on the top surface to melt locally at the contact point with the unit 300, which helps the frost to peel off.

[0054] As the conductive rod 305 contacts the heating plate 303, the temperature of the conductive rod 305 will gradually increase due to heat conduction. When the temperature reaches the Curie point temperature of the conductive rod 305, the attraction of the electromagnet 503 to the conductive rod 305 will disappear. At this time, the conductive rod 305 will move upward under the action of the nitrogen spring 309, which can avoid the component being damaged due to excessive temperature. In addition, due to heat conduction, the bimetallic plate 302 will bend, making the contact surface between the top surface of the frost and the unit 300 convex and uneven, which can promote the top surface of the frost to peel off from the unit 300. The uneven bimetallic plate 302 acts on the locally melted top surface of the frost, and the pressurized airflow sprayed from the nozzle 402 acts on the bottom surface of the frost. The double-sided attack helps the frost at this point to break quickly, thereby achieving the de-icing effect.

[0055] In embodiment 2, the frost removed from the bottom of the freezer body 100 can fall onto the vibrating plate 505. The vibrating plate 505 will vibrate due to the airflow sprayed by the nozzle 402 and the influence of the spring, which can prevent the frost from accumulating on the vibrating plate 505. At the same time, the vibrating plate 505 can also protect the mounting base 502 and the electromagnet 503, preventing the components from being damaged by impact with the falling frost.

[0056] The control method of this invention is to achieve automatic control through an external controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0057] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0058] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A portable defrosting freezer, characterized in that, include: Freezer body (100), and a support part (101) is provided at the bottom of the freezer body (100). Mounting plate (200), which is attached to the bottom surface of the freezer body (100); Unit (300), a plurality of said units (300) are disposed on mounting plate (200), unit (300) includes fixing plate (301), hot bimetallic plate (302), electric heating plate (303), electric rod (304) and electric rod (305). The fixing plate (301) is connected to the mounting plate (200) through the connecting plate (306). There is a gap (307) between the fixing plates (301) of adjacent units (300). The thermal bimetallic plate (302) is set at the gap (307) to connect the adjacent fixing plates (301). The heating plate (303) is disposed on the top surface of the bimetallic plate (302); The power rods (304) are respectively installed on both sides of the freezer body (100), and the connecting plate (306) has an opening (308) for the power rods (304) to pass through. The conductive rod (305) is positioned to match the heating plate (303). The top of the conductive rod (305) is connected to the mounting plate (200) via a nitrogen spring (309). A contact (3010) is provided on the conductive rod (305). When the conductive rod (305) moves down, the contact (3010) can abut against the energized rod (304). It also includes an air blowing device and a moving device; The blowing device can blow air to the bottom of the freezer body (100). The blowing device includes a storage tank (401) and a nozzle (402). The storage tank (401) is connected to an external pressurization device, and the nozzle (402) is connected to the storage tank (401) through a pipe and the nozzle (402) is tilted towards the bottom surface of the freezer body (100). The moving device is used to drive the blowing device to move. The moving device includes a guide rail (501), a mounting base (502), an electromagnet (503), and a geared motor (504). The guide rails (501) are respectively installed on both sides of the freezer body (100) and fixedly connected to the support (101); The end of the mounting base (502) cooperates with the guide rail (501) to form a movable pair, and the nozzle (402) is mounted on the mounting base (502); The electromagnet (503) is installed at the front end of the mounting base (502). When the electromagnet (503) is energized, it attracts the conductive rod (305) to achieve mutual attraction between the moving device and the conductive rod (305). Therefore, the conductive rod (305) will drive the nitrogen spring (309) to deform and press against the heating plate (303). During the process, the contact (3010) connected to the conductive rod (305) can act on the energized rod (304). The current on the energized rod (304) acts on the heating plate (303) through the conductive rod (305) to generate heat in the heating plate (303). The shaft of the geared motor (504) is connected to the screw (507), and the screw (507) passes through the mounting base (502) to form a helical pair with the mounting base (502) along the moving direction of the air blowing device.

2. A portable defrosting freezer according to claim 1, characterized in that: The moving device also includes a vibrating plate (505), the bottom of which is connected to the mounting base (502) by a spring (506), the vibrating plate (505) is inclined and its front end abuts against the top surface of the guide rail (501).

3. A portable defrosting freezer according to claim 2, characterized in that: The rear end of the vibrating plate (505) is adjacent to the nozzle (402).

4. A portable defrosting freezer according to any one of claims 1-3, characterized in that: It also includes a polytetrafluoroethylene film (600) that surrounds the mounting plate (200) and the unit (300).

5. A portable defrosting freezer according to any one of claims 1-3, characterized in that: The unit (300) has two conductive rods (305) and the conductive rods (305) are connected by non-conductive rubber rods (3011).

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