Evaporation water tray structure for refrigeration display cabinet
By combining self-evaporating components and electric heating evaporating components, and using copper tubes, evaporating paper, and electric heating tubes to evaporate condensate, the problem of condensate overflow is solved, evaporation efficiency is improved, compressor exhaust temperature is reduced, and the heat dissipation effect of the refrigeration system is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-03-03
AI Technical Summary
The existing evaporation water trays of refrigerated display cases are difficult to effectively prevent condensate from overflowing when there is a large amount of condensate, leading to the problem of condensate overflowing from the water tray.
The structure combines a self-evaporating component and an electric heating evaporating component. The self-evaporating component evaporates condensate through copper tubes and evaporating paper, while the electric heating evaporating component accelerates evaporation through electric heating tubes when needed. The on/off state of the electric heating tubes is controlled by a stainless steel float switch and a temperature sensor to ensure complete evaporation of condensate.
It improves the evaporation efficiency of condensate, prevents condensate overflow, reduces the compressor discharge temperature, and improves the heat dissipation conditions of the refrigeration system.
Smart Images

Figure CN223965701U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refrigerated display cabinets, and in particular to an evaporation water tray structure for refrigerated display cabinets. Background Technology
[0002] During the operation of the refrigerated display case, low-temperature, low-pressure refrigerant gas is drawn into the compressor and compressed into high-temperature, high-pressure gas within the compressor cylinder. This gas is then discharged into the condenser, where it dissipates heat and its temperature gradually decreases. The saturated refrigerant liquid, after condensation, flows into the capillary tube after moisture and impurities are removed by the dryer filter. The capillary tube throttles and reduces the pressure of the refrigerant, transforming it into low-pressure, room-temperature wet vapor. The refrigerant then begins to absorb heat and vaporize in the evaporator, lowering the cabinet temperature. At this point, the refrigerant becomes a low-temperature, low-pressure gas. The refrigerant exiting the evaporator returns to the compressor, and the cycle repeats.
[0003] During the operation of the evaporator, condensation will inevitably appear on its surface. Currently, the condensation is collected by a water pan, but it is impossible to prevent the condensation from overflowing from the water pan.
[0004] To address the aforementioned issues, patent document number 202223310097.5 discloses an evaporation water tray for a refrigerator, comprising an open water tray for storing evaporator condensate, with evaporation coils arranged in a serpentine pattern at the bottom of the water tray, an air inlet pipe at one end of each evaporation coil, and an air outlet pipe at the other end of each evaporation coil; a pair of limiting plates are also provided in the water tray, with the evaporation coils positioned between the limiting plates and the water cooling tray, and the limiting plates limiting the evaporation coils.
[0005] In the above technical solution, the evaporator water pan of the freezer has an inlet pipe connected to the compressor exhaust pipe and an outlet pipe connected to the condenser inlet pipe. The high-temperature and high-pressure refrigerant gas discharged from the compressor exhaust pipe enters the evaporator coil to evaporate the condensate in the water pan, preventing the condensate from overflowing. At the same time, it can also reduce the exhaust temperature of the compressor and the temperature of the gas entering the condenser, further reducing the workload of the condenser.
[0006] However, in practical applications, especially when there is a large amount of condensate in the water pan, the evaporation effect of the high-temperature gas discharged from the compressor exhaust pipe alone is not enough to offset the newly added condensate collected in the water pan, which still leads to the problem of condensate overflow in the water pan.
[0007] Therefore, it is necessary to improve such a structure to overcome the above-mentioned defects. Utility Model Content
[0008] The purpose of this invention is to provide an evaporation water tray structure for refrigerated display cabinets to solve the problems existing in the prior art.
[0009] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0010] An evaporation water tray structure for a refrigerated display case includes a self-evaporating component and an electrically heated evaporating component;
[0011] The self-evaporating assembly includes a self-evaporating water box, which is used to collect the condensate generated by the evaporator. A copper tube is fixed to the bottom of the self-evaporating water box by a pressure strip. Several evaporation papers are provided above the pressure strip. Several overflow ports are opened on the top of the self-evaporating water box, and silicone parts are provided at the overflow ports.
[0012] One side of the self-evaporating water box is set as the copper pipe inlet side, and the other three sides of the self-evaporating water box are set as the installation side of the electric heating evaporation component. A fixed bracket is provided on the installation side of the electric heating evaporation component, and the self-evaporating water box is fixedly installed on the base plate through the fixed bracket.
[0013] The electrothermal evaporation assembly includes an electrical control box and an electrothermal evaporation water box. The electrothermal evaporation water box collects the condensate overflowing from the evaporation water box through an overflow outlet. A stainless steel float switch and an electric heating element are installed inside the electrothermal evaporation water box. The electrical control box controls the on / off state of the electric heating element through the stainless steel float switch.
[0014] Furthermore, the main body of the self-evaporating water box has an open structure, with an overflow outlet set along the top edge of the open structure, and the electric heating evaporation component set along the side of the self-evaporating water box, and each component is connected to the self-evaporating water box through an overflow outlet.
[0015] Furthermore, the main body of the copper tube is arranged along the bottom of the self-evaporating water box, and the inlet of the copper tube is used to connect to the compressor. It is used to introduce the high-temperature gas generated by the compressor into the self-evaporating water box, and after exchanging heat with the condensate in the self-evaporating water box, it is discharged through the outlet of the copper tube.
[0016] Furthermore, the evaporation paper is arranged vertically in an array above the copper tube, with the bottom of the evaporation paper used to absorb condensate and evaporate through the surface of the evaporation paper.
[0017] Furthermore, the heating element is mounted on a heating element fixing plate, and the bottom of the heating element fixing plate is fixed to the bottom surface of the electric heating evaporation water box by a magnet.
[0018] Furthermore, the electric heating evaporation water box is equipped with a temperature sensor, the output end of which is connected to the electrical control box. The electrical control box controls the on / off state of the heating element through an overheat protection switch.
[0019] Furthermore, the outer surface of the electric heating evaporation water box is provided with an electric heating evaporation water box fixing bracket.
[0020] In summary, this utility model has the following beneficial effects:
[0021] By setting fixed brackets on different sides of the self-evaporating component, the electric heating evaporating component can be installed in a suitable position according to actual needs, thereby improving the adaptability of the evaporating water tray.
[0022] Evaporation paper is installed in the evaporation water pan to increase the evaporation rate of condensate. An electric heating evaporation component is also installed. When the evaporation efficiency of the self-evaporation component is insufficient, the overflowing condensate can be introduced into the electric heating evaporation component to further increase the evaporation rate of condensate. Attached Figure Description
[0023] Figure 1 This is a perspective view of the evaporation water tray structure for a refrigerated display cabinet as described in this utility model.
[0024] Figure 2 This is a top view of the evaporation water tray structure for a refrigerated display cabinet as described in this utility model.
[0025] Figure 3 This is a schematic diagram of the self-evaporation component described in this utility model.
[0026] Figure 4 This is a schematic diagram of the electrothermal evaporation assembly described in this utility model.
[0027] Figure 5 This is a schematic diagram of the self-evaporating component of this utility model combined with multiple thermal evaporating components. Detailed Implementation
[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with the illustrations and specific embodiments.
[0029] like Figures 1 to 5 As shown, the present invention proposes an evaporation water tray structure for a refrigerated display cabinet, which includes a self-evaporating component 1 and an electric heating evaporating component 8.
[0030] The self-evaporating component 1 includes a self-evaporating water box 2, which is used to collect the condensate generated by the evaporator. The copper tube 7 is fixed to the bottom of the self-evaporating water box 2 by a pressure strip 3. Several evaporating papers 6 are provided above the pressure strip 3. Several overflow ports are opened on the top of the self-evaporating water box 2, and silicone parts 4 are provided at the overflow ports.
[0031] One side of the self-evaporating water box 2 is set as the copper pipe inlet side, and the other three sides of the self-evaporating water box 2 are set as the installation side of the electric heating evaporation component 8. A fixed bracket 5 is provided on the installation side of the electric heating evaporation component 8 respectively. The self-evaporating water box (2) is fixedly installed on the base plate through the fixed bracket 5.
[0032] The electric heating evaporation assembly 8 includes an electrical control box 9 and an electric heating evaporation water box 10. The electric heating evaporation water box 10 collects the condensate overflowing from the evaporation water box 2 through an overflow outlet. A stainless steel float switch 11 and an electric heating tube 12 are provided inside the electric heating evaporation water box 10. The electrical control box 9 controls the on / off state of the electric heating tube 12 through the stainless steel float switch 11.
[0033] The main body of the self-evaporating water box 2 is an open structure, with an overflow outlet set along the top edge of the open structure. The electric heating evaporation component 8 is set along the side of the self-evaporating water box 2 and is connected to the self-evaporating water box 2 through an overflow outlet.
[0034] The main body of the copper pipe 7 is arranged along the bottom of the self-evaporating water box 2. The inlet of the copper pipe 7 is used to connect to the compressor. It is used to introduce the high-temperature gas generated by the compressor into the self-evaporating water box 2, and after exchanging heat with the condensate in the self-evaporating water box 2, it is discharged through the outlet of the copper pipe 7.
[0035] The evaporation paper 6 is arranged vertically in an array above the copper tube 7. The bottom of the evaporation paper 6 is used to absorb condensate and evaporate through the surface of the evaporation paper 6.
[0036] The heating element 12 is mounted on the heating element fixing plate 13, and the bottom of the heating element fixing plate 13 is fixed to the bottom surface of the electric heating evaporation water box 10 by a magnet 14.
[0037] The electric heating evaporation water box 10 is equipped with a temperature sensor 16. The output end of the temperature sensor 16 is connected to the electrical control box 9. The electrical control box 9 controls the on / off state of the electric heating tube 12 through an overheat protection switch.
[0038] The outer surface of the electric heating evaporation water box 10 is provided with an electric heating evaporation water box fixing bracket 15.
[0039] The working principle of this utility model is as follows:
[0040] First, based on the internal space of the refrigerated display cabinet, the electric heating evaporation component 8 is installed at a suitable location on the self-evaporating water box 2. Several connection holes are pre-set on both the self-evaporating water box 2 and the electric heating evaporation component 8, which can be quickly installed in conjunction with the connection structure on the base plate. The connection structure in this embodiment is all existing technology, so it will not be described in detail here.
[0041] If the internal space of the refrigerated display case allows, multiple electric heating evaporation units 8 can be installed simultaneously, thereby improving the performance of the evaporation water tray.
[0042] The bottom of the self-evaporating water box 2 is equipped with a copper pipe 7 that is connected to the compressor exhaust port. After the condensate produced by the evaporator drips into the self-evaporating water box 2, the high-temperature gas discharged by the compressor exchanges heat with the condensate through the copper pipe 7, which helps to accelerate the evaporation rate of the condensate. The condensate can also help reduce the compressor exhaust temperature and improve the heat dissipation conditions of the refrigeration system.
[0043] Evaporation paper 6 is provided at the top of copper tube 7. Evaporation paper 6 absorbs water naturally from the bottom, increasing the contact area between condensate and air, assisting the rapid diffusion of condensate, and accelerating the evaporation process. When the ambient humidity is high, the refrigeration system produces more condensate, and the natural evaporation of evaporation paper 6 is insufficient to completely evaporate the condensate. At this time, the condensate level rises and flows into the electric heating evaporation water box 10 from the overflow port set at the top of the evaporation water box 2.
[0044] After the condensate drips into the electric heating evaporation water box 10, the float of the stainless steel float switch 11 rises synchronously with the water level. When the water level reaches the connection height of the float, the stainless steel float switch 11 connects the coil power of the time relay, and the time relay connects the power of the electric heating tube 12. The electric heating tube 12 heats and accelerates the evaporation of the condensate.
[0045] When the water level is lower than the break height of the float, the stainless steel float switch 11 disconnects the power supply to the coil of the time relay, and the time relay starts timing. After the set time is reached, the power supply to the heating element 12 is disconnected to prevent dry burning.
[0046] When the system malfunctions and heating becomes uncontrolled, causing the system to exceed the set temperature, the overheat protection switch will be activated to forcibly cut off the heater power supply, preventing the heating element 12 from catching fire or causing other unsafe factors due to uncontrolled heating.
[0047] In this document, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", "vertical", and "horizontal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the purpose of clarifying the technical solution and for the convenience of description, and therefore should not be construed as limiting the present utility model.
[0048] In this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.
[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An evaporation water tray structure for a refrigerated display case, characterized in that, It includes a self-evaporating component (1) and an electrothermal evaporating component (8); The self-evaporating assembly (1) includes a self-evaporating water box (2), which is used to collect the condensate generated by the evaporator. The copper tube (7) is fixed to the bottom of the self-evaporating water box (2) by a pressure strip (3). Several evaporating papers (6) are provided above the pressure strip (3). Several overflow ports are opened on the top of the self-evaporating water box (2), and silicone parts (4) are provided at the overflow ports. One side of the self-evaporating water box (2) is set as the copper pipe inlet side, and the other three sides of the self-evaporating water box (2) are set as the installation side of the electric heating evaporation component (8). A fixed bracket (5) is provided on the installation side of the electric heating evaporation component (8), and the self-evaporating water box (2) is fixedly installed on the base plate through the fixed bracket (5). The electric heating evaporation assembly (8) includes an electrical control box (9) and an electric heating evaporation water box (10). The electric heating evaporation water box (10) collects the condensate overflowing from the evaporation water box (2) through an overflow port. A stainless steel float switch (11) and an electric heating tube (12) are provided inside the electric heating evaporation water box (10). The electrical control box (9) controls the on / off state of the electric heating tube (12) through the stainless steel float switch (11).
2. The evaporation water tray structure for a refrigerated display case according to claim 1, characterized in that, The main body of the self-evaporating water box (2) is an open structure, with an overflow outlet set along the top edge of the open structure. The electric heating evaporation component (8) is set along the side of the self-evaporating water box (2) and is connected to the self-evaporating water box (2) through an overflow outlet.
3. The evaporation water tray structure for a refrigerated display cabinet according to claim 1, characterized in that, The main body of the copper pipe (7) is arranged along the bottom of the self-evaporating water box (2). The inlet of the copper pipe (7) is used to connect to the compressor. It is used to introduce the high-temperature gas generated by the compressor into the self-evaporating water box (2) and exchange heat with the condensate in the self-evaporating water box (2) before being discharged through the outlet of the copper pipe (7).
4. The evaporation water tray structure for a refrigerated display case according to claim 1, characterized in that, The evaporation paper (6) is arranged vertically in an array above the copper tube (7). The bottom of the evaporation paper (6) is used to absorb condensate and evaporate through the surface of the evaporation paper (6).
5. The evaporation water tray structure for a refrigerated display case according to claim 1, characterized in that, The heating element (12) is mounted on the heating element fixing plate (13), and the bottom of the heating element fixing plate (13) is fixed to the bottom surface of the electric heating evaporation water box (10) by a magnet (14).
6. The evaporation water tray structure for a refrigerated display case according to claim 1, characterized in that, The electric heating evaporation water box (10) is equipped with a temperature sensor (16). The output end of the temperature sensor (16) is connected to the electrical control box (9). The electrical control box (9) controls the on / off state of the electric heating tube (12) through an overheat protection switch.
Citation Information
Patent Citations
Evaporation water pan of refrigerator
CN219494545U