Flower refrigerated cabinet based on secondary heating

By installing a water level sensor and a heater in the refrigerator, and utilizing the combination of a high-pressure pipe and a heater, the problem of low condensate evaporation efficiency is solved, achieving efficient condensate evaporation, preventing overflow, and improving the safety of the refrigerator.

CN224230437UActive Publication Date: 2026-05-12ZHEJIANG BOJIN ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG BOJIN ELECTRIC CO LTD
Filing Date
2025-05-19
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing flower refrigerators have low efficiency in evaporating condensate, leading to condensate overflow and posing a safety hazard.

Method used

A water level sensor and a heater are installed in the refrigerator. Heat is generated through a high-pressure pipe for primary heating, and the water level sensor controls the heater to perform secondary heating after detecting the water level, thereby improving the evaporation efficiency of condensate.

Benefits of technology

It effectively prevents condensate overflow, improves the evaporation efficiency of condensate, and ensures the safety and reliability of the refrigerator.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a flower refrigerated cabinet based on secondary heating, which comprises a cabinet body with a containing cavity, a cabinet door movably closed in the cabinet body and a shelf placed in the cabinet body, and is characterized in that a flow guide pipe is arranged on the inner wall of the cabinet body, one end of the flow guide pipe is communicated with the interior of the cabinet body, and a water receiving box is arranged at the other end of the flow guide pipe; a water level sensor used for sensing the height of the water level, a heater capable of being electrified for heating and a high-pressure pipe connected with a compressor are arranged in the water receiving box, the heater and the high-pressure pipe are vertically arranged at intervals, a fixing mechanism is arranged between the heater and the high-pressure pipe, and a controller is connected between the water level sensor and the heater. When the condensate water cannot be evaporated in time, the water level of the condensate water in the water receiving box rises, then the water level sensor is triggered, the water level sensor sends a signal to the controller, and therefore the heater is controlled to be started, the heater located on the upper portion of the water receiving box conducts secondary heating, the evaporation efficiency of the condensate water is improved, and the situation that the condensate water overflows is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a flower refrigerator based on secondary heating. Background Technology

[0002] As living standards improve, fresh flowers are used in more and more occasions. To keep flowers fresh and slow down wilting, they are often placed in refrigerated display cases. A flower refrigeration case is a relatively simple refrigeration device. It is equipped with condenser pipes inside. When the condenser pipes are working, the temperature inside the case is lowered through heat transfer, thus preserving the flowers through refrigeration.

[0003] Patent No. ZL 202022164539.4 discloses a flower display refrigerator, including a cabinet body and a cabinet door. The inner cavity of the cabinet is equipped with a shelf for placing flowers, and a fan shroud is installed on the inner wall of the cabinet, with a fan mounted on the shroud. By driving the flow of cold air at the bottom of the cabinet cavity through the fan, the cold air distribution within the cabinet can be made more uniform, avoiding temperature differences inside the cabinet and improving the preservation of the flowers inside. However, with the aforementioned solution, when the refrigerator door is frequently opened and closed, warm and humid outside air enters the cabinet. The water vapor in the air condenses rapidly upon encountering the cold air. Generally, the condensate is diverted to a drip tray and evaporated using the heat from a high-pressure pipe. However, in most cases, the evaporation efficiency is low, causing the condensate to overflow and soak the cabinet and floor, posing a safety hazard. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flower refrigerator based on secondary heating.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A flower refrigerator based on secondary heating includes a cabinet body with a cavity, a cabinet door that can be closed within the cabinet body, and shelves placed inside the cabinet body, characterized in that:

[0007] The inner wall of the cabinet is provided with a flow guide pipe. One end of the flow guide pipe is connected to the inside of the cabinet, and the other end of the flow guide pipe is provided with a water receiving box. Inside the water receiving box, there is a water level sensor for sensing the water level, an electrically heated heater, and a high-pressure pipe connected to a compressor. The heater and the high-pressure pipe are arranged vertically and vertically, and there is a fixing mechanism between them. A controller is connected between the water level sensor and the heater.

[0008] Preferably, the water level sensor is located on the side wall of the water receiving box and is positioned above the heater, which is located above the high-pressure pipe and distributed around the inside of the water receiving box.

[0009] Preferably, the heater includes U-shaped heating wires and a heat-conducting plate sleeved on the outside of the heating wires. The heat-conducting plate is vertically arranged and spaced apart along the direction of the heating wires.

[0010] Preferably, the high-pressure pipe includes several U-shaped high-pressure branches, each high-pressure branch is arranged side by side at the bottom of the water receiving box, and adjacent high-pressure branches are interconnected.

[0011] Preferably, the heater is connected to a fuse for current protection, and the controller is connected to a thermostat that displays the heating status, with the thermostat positioned relative to the front of the cabinet.

[0012] Preferably, the fixing mechanism includes a guide rail vertically disposed inside the water receiving box and a pressure plate horizontally overlapping the high-pressure pipe, with both ends of the pressure plate slidably connected to the guide rail.

[0013] Preferably, a longitudinally arranged partition is attached above the pressure plate, the partition is symmetrically arranged at both ends of the pressure plate, the inner side of the partition is provided with an L-shaped groove to support the heater, and the outer side of the partition is slidably connected to the guide rail.

[0014] Preferably, the partition is provided with an insert plate that is slidably connected to the guide rail above it, and the pressure plate and the partition are respectively provided with vertically penetrating slots. The bottom of the insert plate is inserted into the slot and is integrally connected with the pressure plate and the partition.

[0015] Preferably, the top of the insert plate is provided with an L-shaped buckle for limiting the heater. The L-shaped buckle extends inward and presses against the top of the heater, corresponding to the four corners of the heater.

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

[0017] This invention incorporates a water level sensor and a heater. Condensate slides down the inner wall of the cabinet and enters the water collection box through a guide pipe. When the refrigeration system is operating, the compressor compresses the refrigerant into a high-temperature, high-pressure gas, generating heat in the high-pressure pipe. This high-pressure pipe, located at the bottom of the water collection box, undergoes primary heating to evaporate the condensate. When the condensate cannot evaporate in time, the water level in the collection box rises, triggering the water level sensor. The sensor sends a signal to the controller, which then activates the heater. The heater located at the top of the collection box provides secondary heating, improving the evaporation efficiency of the condensate and preventing overflow. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the flower refrigerator described in this utility model.

[0019] Figure 2 This is a schematic diagram of the assembly of the water receiving box described in this utility model.

[0020] Figure 3This is a schematic diagram of the assembly of the heater described in this utility model.

[0021] Figure 4 This is a structural schematic diagram of the fixing mechanism described in this utility model.

[0022] Attached diagram descriptions: 1. Cabinet body; 2. Cabinet door; 3. Shelf; 4. Drainage pipe; 5. Water collection box; 6. Water level sensor; 7. High-pressure pipe; 8. Heating wire; 9. Heat-conducting plate; 10. Guide rail; 11. Pressure plate; 12. Partition; 13. L-shaped groove; 14. Insert plate; 15. Slot; 16. L-shaped buckle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1 to 4 One embodiment provided by this utility model:

[0025] A flower refrigerator based on secondary heating includes a cabinet body 1 with a cavity, a cabinet door 2 that can be movably closed within the cabinet body 1, and shelves 3 placed inside the cabinet body 1. The inner wall of the cabinet body 1 is provided with a guide pipe 4, one end of which is connected to the interior of the cabinet body 1, and the other end of which is provided with a water receiving box 5. Inside the water receiving box 5, there is a water level sensor 6 for sensing the water level, an electrically heated heater, and a high-pressure pipe 7 connected to a compressor. The heater and the high-pressure pipe 7 are arranged vertically and vertically, and a fixing mechanism is provided between them. A controller is connected between the water level sensor 6 and the heater.

[0026] Cabinet 1 is placed on the ground and has an internal cavity with an opening facing forward. Cabinet door 2 is located on the front of cabinet 1 and can be movably closed within the cavity. Several shelves 3 are arranged in multiple layers and installed inside cabinet 1 for placing flowers. A through-pipe 4 is installed on the inner wall of cabinet 1, near the bottom, and its installation location for condensate drainage can be selected according to the internal wall structure of cabinet 1. A water collection box 5 is located at the rear of cabinet 1 and has an upward-opening cavity. One end of the through-pipe 4 connects to the interior of cabinet 1, and the other end connects to the water collection box 5. After condensate slides down the inner wall of cabinet 1, it can enter the water collection box 5 through the through-pipe 4, where it is collected.

[0027] The water level sensor 6, heater, and high-pressure pipe 7 are all installed inside the water receiving box 5, arranged sequentially from top to bottom. The water level sensor 6 is located on the side wall of the water receiving box 5 and can be preset as a warning line to sense the water level. The heater is located at the top of the water receiving box 5 and is connected to a power source for heating. The high-pressure pipe 7 is located at the bottom of the water receiving box 5 and is connected to the compressor. In the refrigeration system, the high-pressure pipe 7 is located between the compressor and the condenser. After the compressor compresses the refrigerant into a high-temperature, high-pressure gas, it enters the condenser through the high-pressure pipe 7. Under the influence of the high-temperature, high-pressure gas, the high-pressure pipe 7 generates significant heat, which can evaporate the condensate in the water receiving box 5. Both the heater and the high-pressure pipe 7 are laid horizontally, spaced vertically, with a fixing mechanism located between them for separation and support. The water level sensor 6 and the heater are connected to a controller, which receives signals and controls the switches. After the condensate enters the water collection box 5, it first contacts the lower high-pressure pipe 7. Once it reaches a certain water level, it then contacts the upper heater. As the water level continues to rise to the warning line, it contacts the water level sensor 6 on the side wall. At this point, the water level sensor 6 sends a signal to the controller, which then activates the heater. The heater generates heat and, together with the high-pressure pipe 7, evaporates the condensate.

[0028] This invention incorporates a water level sensor 6 and a heater. Condensate slides down the inner wall of the cabinet 1 and enters the water collection box 5 via the guide pipe 4. When the refrigeration system is operating, the compressor compresses the refrigerant into a high-temperature, high-pressure gas, generating heat in the high-pressure pipe 7. The high-pressure pipe 7, located at the bottom of the water collection box 5, undergoes primary heating to evaporate the condensate. When the condensate cannot evaporate in time, the water level in the water collection box 5 rises, triggering the water level sensor 6. The water level sensor 6 sends a signal to the controller, which then activates the heater. The heater located at the top of the water collection box 5 performs secondary heating, improving the evaporation efficiency of the condensate and preventing overflow.

[0029] In this embodiment, preferably, the water level sensor 6 is located on the side wall of the water receiving box 5 and is positioned above the heater. The heater is located above the high-pressure pipe 7 and is distributed around the inside of the water receiving box 5.

[0030] The water level sensor 6 is located on the side wall of the water receiving box 5, positioned above the heater. It ensures that the condensate completely submerges the heater before triggering the sensor, preventing the heater from drying out. The heater is located above the high-pressure pipe 7 and distributed around the inside of the water receiving box 5, thereby expanding the heating range and improving heating uniformity. Multiple water level sensors 6 can be spaced vertically, each corresponding to a different water level. After the sensing signal is sent to the controller, it controls the heater to operate at different output powers. When a high water level is detected, the heater outputs high power; when a low water level is detected, the heater outputs low power, saving electricity and protecting the device.

[0031] In this embodiment, preferably, the heater includes a U-shaped heating wire 8 and a heat-conducting plate 9 sleeved on the outside of the heating wire 8. The heat-conducting plate 9 is vertically arranged and spaced apart along the direction of the heating wire 8.

[0032] The heater comprises interlocking heating wires 8 and heat-conducting plates 9. The heating wires 8 are arranged in a U-shape, and the heat-conducting plates 9 are vertically positioned. Several heat-conducting plates 9 are installed on the outside of the heating wires 8 and spaced apart along the direction of the heating wires 8. The bottom of the heat-conducting plate 9 has a downward-opening groove, the width of which matches the diameter of the heating wire 8. The heat-conducting plate 9 is inserted downward into the heating wire 8 through the groove and supports the opposite sides of the heating wire 8. After the heater is started, the heating wires 8 generate a large amount of heat and transfer the heat to the heat-conducting plates 9. The heat-conducting plates 9 increase the contact area with the condensate, thereby improving the evaporation efficiency.

[0033] In this embodiment, preferably, the high-pressure pipe 7 includes several U-shaped high-pressure branches, each of which is arranged side by side at the bottom of the water receiving box 5, and adjacent high-pressure branches are interconnected.

[0034] The high-pressure pipe 7 is distributed in a wavy shape, including several U-shaped high-pressure branches. Each high-pressure branch is located on the same horizontal plane and is spaced apart and arranged side by side at the bottom of the water collection box 5. Adjacent high-pressure branches are interconnected, increasing the contact area with condensate and improving evaporation efficiency. The high-pressure branches are arranged longitudinally, while the heat-conducting plate 9 is arranged laterally. The high-pressure branches and the heat-conducting plate 9 are perpendicular to each other, reducing the overlap of their heating areas and improving heat utilization.

[0035] In this embodiment, preferably, the heater is connected to a fuse for current protection, and the controller is connected to a thermostat that displays the heating status. The thermostat is positioned relative to the front of the cabinet 1.

[0036] The fuse is connected between the heater and the power supply, providing current protection. When the heater's output power is too high and the current exceeds the rated value, the fuse will melt due to overheating, preventing damage to the heater from continuous overcurrent. The thermostat is connected to the controller and installed on the front side of cabinet 1. It has a heating status display function, making it convenient for users to observe and also to determine the water level in the water collection box 5.

[0037] In this embodiment, preferably, the fixing mechanism includes a guide rail 10 vertically disposed inside the water receiving box 5, and a pressure plate 11 horizontally overlapping the high pressure pipe 7, with both ends of the pressure plate 11 slidably connected to the guide rail 10.

[0038] The guide rails 10 are located inside the water receiving box 5, symmetrically distributed and arranged vertically, extending from the top to the bottom of the water receiving box 5. The pressure plate 11 is arranged horizontally, with outwardly opening grooves at both ends. The pressure plate 11 is engaged with the guide rails 10 from top to bottom through the grooves and slides vertically with the guide rails 10 until the pressure plate 11 abuts against the high-pressure pipe 7. The pressure plate 11 overlaps the high-pressure pipe 7, thus limiting and fixing the high-pressure pipe 7.

[0039] In this embodiment, preferably, a longitudinally arranged partition 12 is attached above the pressure plate 11. The partition 12 is symmetrically arranged at both ends of the pressure plate 11. An L-shaped groove 13 for supporting the heater is provided on the inner side of the partition 12. The outer side of the partition 12 is slidably connected to the guide rail 10.

[0040] The partition plate 12 is located above the pressure plate 11, arranged longitudinally and perpendicular to the pressure plate 11, symmetrically positioned at both ends of the pressure plate 11. The outer side of the partition plate 12 has an outwardly opening groove. The partition plate 12 is engaged with the guide rail 10 from top to bottom through the groove and slides perpendicularly to the guide rail 10 until the partition plate 12 abuts against the pressure plate 11. The partition plate 12 overlaps the pressure plate 11, serving to separate the high-pressure pipe 7. An L-shaped groove 13 is located inside the partition plate 12. The outer edge of the heater's bottom is engaged within the L-shaped groove 13, providing limiting support for the heater.

[0041] In this embodiment, preferably, the partition 12 is provided with an insert plate 14 that is slidably connected to the guide rail 10. The pressure plate 11 and the partition 12 are respectively provided with vertically penetrating slots 15. The bottom of the insert plate 14 is inserted into the slot 15 and is integrally connected with the pressure plate 11 and the partition 12.

[0042] The insert plate 14 is located above the partition plate 12. The outer side of the insert plate 14 has an outwardly opening groove. The insert plate 14 is engaged with the guide rail 10 from top to bottom through the groove and slides vertically with the guide rail 10 until the insert plate 14 abuts against the partition plate 12. The bottom of the insert plate 14 has two downwardly extending prongs. The pressure plate 11 and the partition plate 12 each have vertically penetrating slots 15, with each slot 15 corresponding to one of the prongs. After the insert plate 14 abuts against the partition plate 12, the insert plate 14 is inserted into the slot 15 through the prongs. The prongs pass sequentially through the slots 15 of the partition plate 12 and the pressure plate 11, achieving an integral connection and providing a fixing function.

[0043] In this embodiment, preferably, the top of the insert plate 14 is provided with an L-shaped buckle 16 for limiting the heater. The L-shaped buckle 16 extends inward and presses against the heater, corresponding to the four corners of the heater.

[0044] The L-shaped buckle 16 is located at the top of the insert plate 14 and extends inward to limit the heater. After the insert plate 14 abuts against the partition plate 12, the insert plate 14 is inserted into the slot 15 through the pins. The L-shaped buckle 16 is pressed against the top of the heater, corresponding to the four corners of the heater. The heater is clamped between the L-shaped buckle 16 and the L-shaped groove 13, which improves the stability of the heater installation.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A flower refrigerator based on secondary heating, comprising a cabinet body with a cavity, a cabinet door that can be movably closed within the cabinet body, and shelves placed inside the cabinet body, characterized in that: The inner wall of the cabinet is provided with a flow guide pipe. One end of the flow guide pipe is connected to the inside of the cabinet, and the other end of the flow guide pipe is provided with a water receiving box. Inside the water receiving box, there is a water level sensor for sensing the water level, an electrically heated heater, and a high-pressure pipe connected to a compressor. The heater and the high-pressure pipe are arranged vertically and vertically, and there is a fixing mechanism between them. A controller is connected between the water level sensor and the heater.

2. The flower refrigerator based on secondary heating according to claim 1, characterized in that: The water level sensor is located on the side wall of the water receiving box and is positioned above the heater, which is located above the high-pressure pipe and distributed around the inside of the water receiving box.

3. The flower refrigerator based on secondary heating according to claim 2, characterized in that: The heater includes U-shaped heating wires and heat-conducting plates sleeved on the outside of the heating wires. The heat-conducting plates are vertically arranged and spaced apart along the direction of the heating wires.

4. The flower refrigerator based on secondary heating according to claim 3, characterized in that: The high-pressure pipe includes several U-shaped high-pressure branches, each of which is arranged side by side at the bottom of the water receiving box, and adjacent high-pressure branches are interconnected.

5. A flower refrigerator based on secondary heating according to claim 4, characterized in that: The heater is connected to a fuse for current protection, and the controller is connected to a temperature controller that displays the heating status. The temperature controller is positioned relative to the front of the cabinet.

6. The flower refrigerator based on secondary heating according to claim 1, characterized in that: The fixing mechanism includes a guide rail vertically disposed inside the water receiving box and a pressure plate horizontally overlapping the high-pressure pipe, with both ends of the pressure plate slidably connected to the guide rail.

7. A flower refrigerator based on secondary heating according to claim 6, characterized in that: A longitudinally arranged partition plate overlaps the pressure plate. The partition plate is symmetrically arranged at both ends of the pressure plate. The inner side of the partition plate is provided with an L-shaped groove to support the heater. The outer side of the partition plate is slidably connected to the guide rail.

8. A flower refrigerator based on secondary heating according to claim 7, characterized in that: The partition is provided with an insert plate that is slidably connected to the guide rail. The pressure plate and the partition are respectively provided with vertically penetrating slots. The bottom of the insert plate is inserted into the slot and is integrally connected with the pressure plate and the partition.

9. A flower refrigerator based on secondary heating according to claim 8, characterized in that: The top of the insert plate is provided with an L-shaped buckle that limits the heater. The L-shaped buckle extends inward and presses against the heater, corresponding to the four corners of the heater.