Pre-cooling defrosting device for ultralow-temperature refrigerator

Abstract

The utility model discloses a pre-cooling defrosting device for an ultra-low temperature refrigerator, and relates to the technical field of pre-cooler defrosting. The defrosting device comprises a defrosting box and a rectangular groove formed in the front face of the defrosting box. A moving mechanism, two mounting mechanisms and an air drying mechanism are arranged on the defrosting box. The moving mechanism comprises a first moving assembly and a second moving assembly, the first moving assembly comprises a strip-shaped block installed on the inner wall of the left side of the defrosting box, a strip-shaped groove is formed in the right side of the strip-shaped block, a threaded rod is rotatably installed in the strip-shaped groove, and the threaded rod is sleeved with a first connecting block in a threaded mode; a rectangular frame is mounted on the right side of the first connecting block, and a motor is mounted at the top of the defrosting box. By arranging the moving mechanism and the air drying mechanism, frost on the precooler can be rapidly removed, moisture on the precooler can be rapidly dried, and the defrosting efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of precooler defrosting, in particular to a precooling defrosting device for an ultra-low temperature refrigerator. Background Art

[0002] A refrigerator is a mechanical device that uses a compressor to change the pressure of the refrigerant gas to achieve low-temperature refrigeration. The compressor used is different from a general air compressor due to its different use conditions and compressed working medium. According to the differences in the structure and working principle of the refrigerator, it is similar to an air compressor and can also be divided into several different forms such as piston type, screw type, centrifugal type, etc. The refrigerator is one of the most important components of compression refrigeration equipment. The refrigerator is composed of five major parts in series: compressor, condenser, evaporator, dry filter, and expansion throttle valve. The refrigerator is filled with a proper amount of refrigerant and the electrical appliance controls the operation of the compressor according to the needs of the environment to achieve the purpose of refrigeration and heat transfer. The operating procedures, lubrication characteristics, and fault repair are introduced in detail.

[0003] In the related technology, a pre-cooling and defrosting device for an ultra-low temperature freezer is disclosed with publication number CN209326174U, which specifically relates to the field of pre-cooler defrosting technology, and includes a heating device, the heating device includes a heating box, the inner wall of the heating box is provided with a slide groove, the inside of the slide groove is provided with a roller, the roller is slidably connected to the slide groove, the front side of the roller is provided with a rotating rod, the outer side of the rotating rod is provided with a placement plate, and the placement plate is hollowed out.

[0004] The device defrosts by heating and blowing air, but the defrosting time is long, the defrosting efficiency is low during the defrosting process, it cannot defrost quickly, and it cannot perform fixed defrosting on precoolers of different sizes, which has limitations. Utility Model Content

[0005] The purpose of the utility model is to provide a pre-cooling and defrosting device for an ultra-low temperature freezer, which solves the problems of long defrosting time, low defrosting efficiency during the defrosting process, inability to defrost quickly, and inability to perform fixed defrosting on pre-coolers of different sizes, and the existence of limitations by arranging a moving mechanism and an air-drying mechanism.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a pre-cooling and defrosting device for an ultra-low temperature freezer, comprising a defrosting box and a rectangular slot opened on the front of the defrosting box, wherein the defrosting box is provided with a moving mechanism, two mounting mechanisms and an air drying mechanism;

[0008] The moving mechanism includes a moving component 1 and a moving component 2. The moving component 1 includes a bar block installed on the left inner wall of the defrost box. A bar groove is opened on the right side of the bar block. A threaded rod is rotatably installed in the bar groove. A connecting block 1 is threadedly sleeved on the threaded rod. A rectangular frame is installed on the right side of the connecting block 1. A motor is installed on the top of the defrost box. The top end of the threaded rod extends outside the defrost box and is rotatably connected to the output shaft of the motor.

[0009] Furthermore, the second moving component comprises a strip box installed on the right side of the defrost box, a slide rod is installed in the strip box, a connecting block 2 is slidably sleeved on the slide rod, and the left end of the connecting block 2 is fixedly connected to the rectangular frame.

[0010] Furthermore, a plurality of support rods are installed in the rectangular frame, a precooler is arranged in the rectangular frame, the bottom of the precooler is in contact with the plurality of support rods, a precooler is installed on the right side of the defrost box, a water outlet pipe and a water inlet pipe are installed on the right side of the defrost box, and a switch valve is installed on the water outlet pipe.

[0011] Furthermore, the mounting mechanism includes mounting component 1 and mounting component 2, the mounting component 1 includes a fixing plate installed in a rectangular frame, a plurality of springs are installed on the right side of the fixing plate, an extrusion plate is installed on the right ends of the plurality of springs, and the right side of the extrusion plate is in contact with the precooler.

[0012] Furthermore, the second installation component includes a threaded rotating rod threadedly installed on the front side of the rectangular frame, the threaded rotating rod passes through the rectangular frame, a circular plate is rotatably installed on the end of the threaded rotating rod, the back side of the circular plate is in contact with the rectangular frame, and a twisting block is installed on the front end of the threaded rotating rod.

[0013] Furthermore, the air-drying mechanism includes a fan installed on the top of the defrost box, an air inlet pipe is installed on the right side of the fan, an air outlet pipe is installed on the bottom of the fan, the bottom end of the air outlet pipe extends into the defrost box, and an air outlet hood is installed on the bottom end of the air outlet pipe.

[0014] Furthermore, a heater 1 is installed on the top inner wall of the defrost box, and a plurality of heating tubes 1 are installed on the left side of the heater 1, and the left ends of the plurality of heating tubes 1 extend into the air outlet hood.

[0015] Furthermore, a heater 2 is installed on the back of the defrost box, and a plurality of heating tubes 2 are installed on the front of the heater 2, and the plurality of heating tubes 2 extend into the defrost box.

[0016] The utility model has the following beneficial effects:

[0017] The utility model provides a moving component 2, so that the sliding rod can make the rectangular frame more stable when moving downward, effectively improving the stability of the rectangular frame to avoid tilting or shaking during the movement; the water outlet pipe and the water inlet pipe are provided to facilitate the replacement of defrost water in the defrost box, and the support rod can facilitate the drying of the precooler; the installation component 1 is provided, so that when the precooler is installed, the precooler can be clamped more firmly by the elastic force of the spring, and it can be suitable for precoolers of different sizes, thereby improving the applicability of the device.

[0018] The utility model provides a second installation component so that a threaded rotating rod can be rotated, and the threaded rotating rod drives the circular plate to contact the precooler and fix the precooler under the action of the thread; an air-drying mechanism is provided so that the precooler in the rectangular frame can be air-dried by the fan, and the defrost water on the precooler can be quickly air-dried; a heater and a heating tube are provided so that the air temperature can be increased under the action of the heater and then cooperated with the fan, and the air-drying efficiency of the precooler can be further improved by the fan; a heater and a heating tube are provided so that the temperature of the defrost water in the defrost box can be increased, and the efficiency of defrosting the precooler is higher.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic structural diagram of a pre-cooling and defrosting device for an ultra-low temperature freezer according to the utility model;

[0022] Figure 2 This is a schematic diagram of the back cross-sectional structure of a pre-cooling and defrosting device for an ultra-low temperature freezer according to the utility model;

[0023] Figure 3 It is a schematic diagram of the enlarged structure of A in the leg 2 of the utility model;

[0024] Figure 4 It is a side sectional structural schematic diagram of a pre-cooling and defrosting device for an ultra-low temperature freezer of the utility model;

[0025] Figure 5 The utility model is a schematic diagram of a top view of the structure of a pre-cooling and defrosting device for an ultra-low temperature freezer.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Defrost box; 2. Rectangular groove; 3. Strip block; 4. Strip groove; 5. Threaded rod; 6. Connection block 1; 7. Rectangular frame; 8. Motor; 9. Strip box; 10. Sliding rod; 11. Connection block 2; 12. Support rod; 13. Precooler; 14. Fixed plate; 101. Water outlet pipe; 102. Water inlet pipe; 103. Switch valve; 15. Spring; 16. Extrusion plate; 17. Threaded rotating rod; 18. Round plate; 19. Twisting block; 191. Fan; 20. Air inlet pipe; 21. Air outlet pipe; 22. Air outlet hood; 23. Heater 1; 24. Heating tube 1; 25. Heater 2; 26. Heating tube 2. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-5 As shown, the utility model is a pre-cooling and defrosting device for an ultra-low temperature freezer, comprising a defrosting box 1 and a rectangular slot 2 opened on the front of the defrosting box 1, and the defrosting box 1 is provided with a moving mechanism, two mounting mechanisms and an air drying mechanism;

[0030] The moving mechanism includes a moving component 1 and a moving component 2. The moving component 1 includes a bar block 3 installed on the left inner wall of the defrost box 1. A bar groove 4 is opened on the right side of the bar block 3. A threaded rod 5 is rotatably installed in the bar groove 4. A connecting block 6 is threadedly sleeved on the threaded rod 5. A rectangular frame 7 is installed on the right side of the connecting block 6. A motor 8 is installed on the top of the defrost box 1. The top of the threaded rod 5 extends to the outside of the defrost box 1 and is rotatably connected to the output shaft of the motor 8.

[0031] Among them Figure 2 As shown, the second moving component includes a strip box 9 installed on the right side of the defrost box 1, a slide bar 10 is installed in the strip box 9, a connecting block 2 11 is slidably sleeved on the slide bar 10, and the left end of the connecting block 2 11 is fixedly connected to the rectangular frame 7.

[0032] By providing the second moving component, the rectangular frame 7 can be more stable during the downward movement of the sliding rod 10, thereby effectively improving the stability of the rectangular frame 7 and avoiding tilting or shaking during the movement.

[0033] Among them Figure 1 and Figure 2As shown, a plurality of support rods 12 are installed in the rectangular frame 7, a precooler 13 is arranged in the rectangular frame 7, the bottom of the precooler 13 is in contact with the plurality of support rods 12, the precooler 13 is installed on the right side of the defrost box 1, a water outlet pipe 101 and a water inlet pipe 102 are installed on the right side of the defrost box 1, and a switch valve 103 is installed on the water outlet pipe 101.

[0034] The water outlet pipe 101 and the water inlet pipe 102 are provided to facilitate replacement of the defrost water in the defrost box 1 , and the support rod 12 can facilitate drying of the precooler 13 .

[0035] Among them Figure 3 As shown, the mounting mechanism includes mounting component 1 and mounting component 2. Mounting component 1 includes a fixing plate 14 mounted in a rectangular frame 7. A plurality of springs 15 are mounted on the right side of the fixing plate 14. An extrusion plate 16 is mounted on the right end of the plurality of springs 15. The right side of the extrusion plate 16 is in contact with the precooler 13.

[0036] By providing the installation component 1, when the precooler 13 is installed, the precooler 13 can be clamped more firmly by the elastic force of the spring 15, and the precooler 13 of different sizes can be applied, thereby improving the applicability of the device.

[0037] Among them Figure 4 As shown, the second installation component includes a threaded rotating rod 17 threadedly installed on the front side of the rectangular frame 7, the threaded rotating rod 17 passes through the rectangular frame 7, a circular plate 18 is rotatably installed at the end of the threaded rotating rod 17, the back side of the circular plate 18 is in contact with the rectangular frame 7, and a twisting block 19 is installed at the front end of the threaded rotating rod 17.

[0038] By setting the second installation component, the threaded rotating rod 17 can be rotated, and the threaded rotating rod 17 drives the circular plate 18 to contact the precooler 13 and fix the precooler 13 under the action of the thread.

[0039] Among them Figure 1 and Figure 4 As shown, the air drying mechanism includes a fan 191 installed on the top of the defrost box 1, an air inlet duct 20 is installed on the right side of the fan 191, an air outlet duct 21 is installed at the bottom of the fan 191, the bottom end of the air outlet duct 21 extends into the defrost box 1, and an air outlet hood 22 is installed at the bottom end of the air outlet duct 21.

[0040] By providing an air-drying mechanism, the precooler 13 in the rectangular frame 7 can be air-dried by the fan 191, and the defrost water on the precooler 13 can be quickly air-dried.

[0041] Among them Figure 4As shown, a heater 23 is installed on the top inner wall of the defrost box 1, and a plurality of heating tubes 24 are installed on the left side of the heater 23. The left ends of the plurality of heating tubes 24 extend into the air outlet cover 22.

[0042] By providing a heater 23 and a heating tube 24, the air temperature can be increased under the action of the heater 23 and combined with the fan 191, the air drying efficiency of the precooler 13 can be further improved through the fan 191.

[0043] Among them Figure 4 As shown, a heater 25 is installed on the back of the defrost box 1 , and a plurality of heating tubes 26 are installed on the front of the heater 25 . The plurality of heating tubes 26 extend into the defrost box 1 .

[0044] By providing the second heater 25 and the second heating tube 26, the temperature of the defrost water in the defrost box 1 can be increased, and the defrosting efficiency of the precooler 13 is higher.

[0045] A specific application of this embodiment is as follows: when in use, a proper amount of defrosting water is injected into the defrosting box 1, and then the heater 25 is started. The heater 25 raises the temperature of the defrosting water in the defrosting box 1 through the heating tube 26; then the precooler 13 is placed in the rectangular frame 7, and the twisting block 19 is twisted. The twisting block 19 drives the threaded rotating rod 17 to rotate. Under the action of the thread, the rotating rod 17 drives the circular plate 18 to contact the precooler 13 and fix the precooler 13; then the motor 8 is started, the motor 8 drives the threaded rod 5 to rotate, the threaded rod 5 drives the connecting block 1 6 to move downward, and the connecting block 1 6 drives the precooler 13 in the rectangular frame 7 to move to the defrosting water in the defrosting box 1, the frost on the precooler 13 will melt quickly, and then the precooler 13 is moved out of the defrosting water, and the fan 191 and the heater 23 are started at the same time. Under the action of the heater 23, the air temperature is raised and then the moisture on the precooler 13 is quickly dried in cooperation with the fan 191.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A precooling and defrosting device for an ultra-low temperature freezer, comprising a defrosting box (1) and a rectangular groove (2) provided on the front of the defrosting box (1), characterized in that: The defrost box (1) is provided with a moving mechanism, two mounting mechanisms and an air drying mechanism; The moving mechanism comprises a moving component 1 and a moving component 2, wherein the moving component 1 comprises a strip block (3) mounted on the left inner wall of the defrost box (1), a strip groove (4) is provided on the right side of the strip block (3), a threaded rod (5) is rotatably mounted in the strip groove (4), a connecting block 1 (6) is threadedly sleeved on the threaded rod (5), a rectangular frame (7) is mounted on the right side of the connecting block 1 (6), a motor (8) is mounted on the top of the defrost box (1), and the top end of the threaded rod (5) extends outside the defrost box (1) and is rotatably connected to the output shaft of the motor (8).

2. A pre-cooling and defrosting device for an ultra-low temperature freezer according to claim 1, characterized in that: The second moving assembly comprises a strip box (9) installed on the right side of the defrost box (1), a slide bar (10) is installed in the strip box (9), a connecting block (11) is slidably sleeved on the slide bar (10), and the left end of the connecting block (11) is fixedly connected to the rectangular frame (7).

3. A pre-cooling and defrosting device for an ultra-low temperature freezer according to claim 2, characterized in that: A plurality of support rods (12) are installed in the rectangular frame (7), a precooler (13) is arranged in the rectangular frame (7), the bottom of the precooler (13) is in contact with the plurality of support rods (12), the precooler (13) is installed on the right side of the defrost box (1), a water outlet pipe (101) and a water inlet pipe (102) are installed on the right side of the defrost box (1), and a switch valve (103) is installed on the water outlet pipe (101).

4. A pre-cooling and defrosting device for an ultra-low temperature freezer according to claim 3, characterized in that: The mounting mechanism comprises a mounting component 1 and a mounting component 2, wherein the mounting component 1 comprises a fixing plate (14) mounted in a rectangular frame (7), a plurality of springs (15) being mounted on the right side of the fixing plate (14), a pressing plate (16) being mounted on the right ends of the plurality of springs (15), and the right side of the pressing plate (16) being in contact with the precooler (13).

5. A pre-cooling and defrosting device for an ultra-low temperature freezer according to claim 4, characterized in that: The second mounting assembly comprises a threaded rotating rod (17) threadedly mounted on the front side of the rectangular frame (7), the threaded rotating rod (17) passing through the rectangular frame (7), a circular plate (18) being rotatably mounted on the end of the threaded rotating rod (17), the back side of the circular plate (18) being in contact with the rectangular frame (7), and a twisting block (19) being mounted on the front end of the threaded rotating rod (17).

6. A pre-cooling and defrosting device for an ultra-low temperature freezer according to claim 5, characterized in that: The air drying mechanism comprises a fan (191) installed on the top of the defrost box (1), an air inlet pipe (20) is installed on the right side of the fan (191), an air outlet pipe (21) is installed at the bottom of the fan (191), the bottom end of the air outlet pipe (21) extends into the defrost box (1), and an air outlet cover (22) is installed at the bottom end of the air outlet pipe (21).

7. A pre-cooling and defrosting device for an ultra-low temperature freezer according to claim 6, characterized in that: A heater (23) is installed on the top inner wall of the defrost box (1), and a plurality of heating tubes (24) are installed on the left side of the heater (23), and the left ends of the plurality of heating tubes (24) extend into the air outlet cover (22).

8. A pre-cooling and defrosting device for an ultra-low temperature freezer according to claim 7, characterized in that: A second heater (25) is installed on the back of the defrost box (1), and a plurality of second heating tubes (26) are installed on the front of the second heater (25), and the plurality of second heating tubes (26) all extend into the defrost box (1).

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