Automatic water adding tool for water pan of refrigerator

Abstract

The utility model discloses an automatic water adding tool for a water pan of a refrigerator, which comprises a water pan (1) with a top opening, an evaporation pipe (11) is arranged in the water pan (1), and the automatic water adding tool is characterized by further comprising a water storage container (2); the water outlet pipeline (3) is connected between the water storage container (2) and the water pan (1) and is used for conveying water in the water storage container (2) into the water pan (1); the water outlet switch control unit (4) is arranged on the water outlet pipeline (3) and is used for controlling the on-off of the water outlet pipeline (3); and the flow metering unit (5) is arranged on the water outlet pipeline (3), is positioned at the downstream of the water outlet switch control unit (4) and is used for metering the water outlet flow of the water outlet pipeline (3). Compared with the prior art, the automatic water adding tool for the water pan of the refrigerator can improve the evaporation capacity test accuracy of the water pan.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment, in particular to an automatic water filling tooling for a refrigerator water receiving tray. Background Art

[0002] Newly designed new model refrigerators may have potential hazards and defects, so it is necessary to conduct test verification before mass production. The refrigerator water receiving tray mainly receives the defrost water of the refrigerator and uses the heating tube in the water receiving tray for evaporation. For details, reference can be made to the Chinese patent "Water Receiving Tray, Condenser Assembly and Refrigeration Equipment" with the patent application number CN202320560338.7. If the water receiving tray is too small or the evaporation rate of the heating tube is low, the defrost water will continue to increase and overflow the water receiving tray, causing safety hazards and usage risks. Therefore, the evaporation capacity test of the water receiving tray is to verify such problems.

[0003] Currently, for the traditional evaporation capacity test of the water receiving tray, under specific environmental temperature and humidity conditions, the refrigerator compartment is loaded with a load, and the refrigerator gear is adjusted to meet a certain temperature. After the conditions are met, ① all the defrost water discharged from the refrigerator drain port is connected to a collection container outside the refrigerator through a water guide pipe. During the test process, the water in the defrost water drain pipe should not flow into the refrigerator water receiving tray; ② forced defrosting is carried out. After defrosting is completed, the prototype is manually moved, the compressor compartment cover plate is removed to empty the water receiving tray and filled with known volume of circulating warm water (covering the heating device and maintaining the maximum evaporation area without overflowing), and a mark is made on the liquid level of the water receiving tray; ③ the refrigerator is opened and closed every day; ④ the prototype is manually moved regularly every day, the compressor compartment cover plate is removed and warm water is injected into the water receiving tray to reach the marked position on the first day to ensure the maximum evaporation surface; ⑤ the collected amount of defrost water and the added amount of evaporated water in the water receiving tray are weighed and recorded manually every day; ⑥ after reaching the required test days, the remaining water in the water receiving tray should be recovered, measured and recorded. Finally, the evaporation amount and collection amount of defrost water per 24 hours are calculated.

[0004] However, in the above scheme, first, currently, manually adding water to the water receiving tray every day requires removing the compressor compartment cover plate outside the water receiving tray, which affects the sealing; second, moving the refrigerator when manually adding water to the water receiving tray every day affects the test working conditions; third, when manually adding water to the water receiving tray every day, it is easy to cause errors in the amount of water added each time and the water adding position; fourth, when manually adding water to the water receiving tray every day, it is only timed water addition and cannot perform water addition operations at any time, which is likely to cause the evaporation tube in the water receiving tray not to be always in the water, or the water receiving tray to overflow due to too much added water or affect the evaporation rate, thus affecting the measurement accuracy of the evaporation water volume; fifth, when manually weighing the added amount of evaporated water in the water receiving tray every day, there are errors.

[0005] It can be seen that the existing technology has technical problems such as large manual operation and measurement errors, moving the prototype affects the test working conditions, and removing the cover plate affects the sealing, ultimately affecting the measurement accuracy of the evaporation water volume of the water receiving tray. Summary of the Invention

[0006] The technical problem to be solved by the present utility model is to provide an automatic water filling tooling for a refrigerator water receiving tray that can improve the measurement accuracy of the evaporation capacity of the water receiving tray in view of the current situation of the prior art.

[0007] The technical solution adopted by the present utility model to solve the above technical problem is as follows: An automatic water filling tooling for a refrigerator water receiving tray includes a water receiving tray with an open top. An evaporation pipe is provided in the water receiving tray. It is characterized in that it further includes

[0008] a water storage container;

[0009] a water outlet pipeline connected between the water storage container and the water receiving tray for transporting the water in the water storage container to the water receiving tray;

[0010] a water outlet switch control unit installed on the water outlet pipeline for controlling the on / off of the water outlet pipeline; and

[0011] a flow metering unit installed on the water outlet pipeline and located downstream of the water outlet switch control unit for measuring the water outlet flow rate of the water outlet pipeline.

[0012] In order to ensure that the evaporation pipe is always immersed in water and avoid the influence of partial exposure of the evaporation pipe on the measurement accuracy of the evaporation amount of the evaporation pipe, a low liquid level sensor is provided in the water receiving tray, and the low liquid level sensor is higher than the evaporation pipe.

[0013] In order to avoid excessive water overflow or excessive water covering the evaporation pipe, which affects the evaporation rate and thus the measurement accuracy of the evaporation amount of the evaporation pipe, a high liquid level sensor is provided in the water receiving tray, and the high liquid level sensor is higher than the low liquid level sensor and lower than the top opening of the water receiving tray.

[0014] In order to realize the automatic opening and closing of the water outlet switch control unit, the automatic water filling tooling for the refrigerator water receiving tray has a controller. The low liquid level sensor, the high liquid level sensor and the water outlet switch control unit are all electrically connected to the controller, so that the controller can receive the signals of the low liquid level sensor and the high liquid level sensor and control the opening and closing of the water outlet switch control unit.

[0015] Preferably, the height difference between the low liquid level sensor and the evaporation pipe is 3 - 7 mm, and the height difference between the high liquid level sensor and the low liquid level sensor is 18 - 22 mm.

[0016] In order to avoid the evaporation pipe clinging to the bottom surface of the inner cavity of the water receiving tray and affecting the measurement of the maximum evaporation amount, there is a gap between the evaporation pipe and the bottom surface of the inner cavity of the water receiving tray.

[0017] Preferably, the height difference between the evaporation pipe and the bottom surface of the inner cavity of the water receiving tray is 8-12 mm.

[0018] In order to realize the automatic measurement of the water addition amount, the flow measurement unit has a timer, and the automatic water filling tooling for the refrigerator water receiving tray has a controller. Both the water outlet switch control unit and the flow measurement unit are electrically connected to the controller, so that the controller can control the opening and closing of the timer of the flow measurement unit according to the opening and closing of the water outlet switch control unit.

[0019] In order to transport the water in the water storage container to the water receiving tray, the bottom of the water storage container has a water outlet, and the water outlet pipeline is a gravity flow pipeline. Its inlet end is connected to the water outlet, and its outlet end is located at the top of the water receiving tray.

[0020] In order to truly simulate the evaporation situation of the evaporation pipe when the user uses the refrigerator, the outlet end of the water outlet pipeline is arranged in a vertical offset with the evaporation pipe.

[0021] In order to facilitate reminding the tester to make up water in time, the top of the water storage container has a water inlet, and a liquid level alarm device is arranged at the bottom of the inner cavity of the water storage container.

[0022] In order to facilitate the measurement of the total water addition amount during the test process, the water storage container is a transparent part and a water volume scale is arranged on the side wall.

[0023] Compared with the prior art, the advantages of the present utility model are as follows:

[0024] First, automatic water addition is realized through the opening and closing of the water outlet switch control unit, solving problems such as the manual water addition operation affecting the test conditions by moving the prototype every day, and removing the press chamber cover affecting the sealing.

[0025] Second, the water addition amount is automatically measured by the flow measurement unit, solving the error of manual water addition measurement, thereby improving the accuracy of the evaporation capacity test of the water receiving tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic perspective view of an embodiment of the automatic water filling tooling for the refrigerator water receiving tray of the present utility model;

[0027] Figure 2 is Figure 1 a schematic perspective view in another direction. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The present utility model will be further described in detail below with reference to the embodiments in the drawings.

[0029] In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present utility model. However, the use of these terms herein is only for the purpose of convenience in description and is determined based on the exemplary orientations shown in the drawings. Since the embodiments disclosed by the present utility model can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the direction of gravity.

[0030] As Figures 1 to 2 shown, it is a preferred embodiment of the automatic water filling tooling for the water receiving tray of the refrigerator of the present utility model. The automatic water filling tooling for the water receiving tray of the refrigerator includes a water receiving tray 1, a water storage container 2, a water outlet pipeline 3, a water outlet switch control unit 4, and a flow metering unit 5.

[0031] Among them, the top of the water receiving tray 1 is open, and an evaporation pipe 11, a low liquid level sensor 12, and a high liquid level sensor 13 are arranged in the water receiving tray 1.

[0032] Specifically, the evaporation pipe 11 extends in a serpentine shape and is horizontally arranged at the lower part of the inner cavity of the water receiving tray 1. There is a gap between the evaporation pipe 11 and the bottom surface of the inner cavity of the water receiving tray 1. The reason for such a setting is that if the evaporation pipe 11 is arranged close to the bottom surface of the inner cavity of the water receiving tray 1, it will affect the contact surface between the evaporation pipe 11 and water and the measurement of the maximum evaporation amount. In this embodiment, the height difference between the evaporation pipe 11 and the bottom surface of the inner cavity of the water receiving tray 1 is 8 - 12 mm;

[0033] The low liquid level sensor 12 is used to send a signal when the water level in the water receiving tray 1 reaches the lowest liquid level. In this embodiment, the low liquid level sensor 12 is higher than the evaporation pipe 11, and the height difference between the low liquid level sensor 12 and the evaporation pipe 11 is 3 - 7 mm. Such a setting ensures that the evaporation pipe 11 is always immersed in water, avoiding partial exposure of the evaporation pipe 11 and affecting the measurement accuracy of the evaporation amount of the evaporation pipe 11;

[0034] The high liquid level sensor 13 is used to send a signal when the water level in the water receiving tray 1 reaches the highest liquid level. In this embodiment, the high liquid level sensor 13 is higher than the low liquid level sensor 12 and lower than the top opening of the water receiving tray 1, and the height difference between the high liquid level sensor 13 and the low liquid level sensor 12 is 18 - 22 mm. Such a setting can avoid excessive water overflow or too much water covering the evaporation pipe 11 and affecting the evaporation rate, thereby affecting the measurement accuracy of the evaporation amount of the evaporation pipe 11.

[0035] The water storage container 2 is a transparent member, and a water volume scale is provided on the side wall. Specifically, the water storage container 2 is set in a sealed shape. The bottom and top of the side wall of the water storage container 2 are respectively provided with a water outlet 21 and a water inlet 22, and a liquid level alarm device 23 is provided at the bottom of the inner cavity of the water storage container 2. When the water volume in the water storage container 2 is small, the liquid level alarm device 23 will give an alarm to remind the tester to replenish water.

[0036] The water outlet pipeline 3 is connected between the water storage container 2 and the water receiving tray 1 for conveying the water in the water storage container 2 into the water receiving tray 1. Specifically, the water outlet pipeline 3 is a gravity flow pipeline, its inlet end is connected to the above-mentioned water outlet 21, and its outlet end is located at the top of the water receiving tray 1; in addition, the outlet end of the water outlet pipeline 3 and the evaporation pipe 11 are arranged in a dislocation manner in the vertical direction. In this way, when the water outlet pipeline 3 discharges water, it can first flow into the bottom of the inner cavity of the water receiving tray 3 and contact the evaporation pipe 11 from the bottom, so as to simulate that when the defrosting water of the refrigerator flows into the water receiving tray 1, it slowly rises from the bottom and contacts the evaporation pipe 11 for evaporation, ensuring the accuracy of the evaporation volume measurement and truly simulating the evaporation situation of the evaporation pipe when the user uses the refrigerator.

[0037] The water outlet switch control unit 4 is installed in the upstream section of the water outlet pipeline 3 for controlling the on-off of the water outlet pipeline 3.

[0038] The flow measurement unit 5 is installed in the downstream section of the water outlet pipeline 3 for measuring the water outlet flow rate of the water outlet pipeline 3.

[0039] In addition, the automatic water filling tooling for the refrigerator water receiving tray has a controller. The above-mentioned low liquid level sensor 12, high liquid level sensor 13 and water outlet switch control unit 4 are all electrically connected to the controller, so that the controller can receive the signals of the low liquid level sensor 12 and high liquid level sensor 13 and control the opening and closing of the water outlet switch control unit 4; the above-mentioned water outlet switch control unit 4 and flow measurement unit 5 are all electrically connected to the controller, so that the controller can control the opening and closing of the timer of the flow measurement unit 5 according to the opening and closing of the water outlet switch control unit 4.

[0040] The working principle of this embodiment is as follows:

[0041] (1) Before measurement, the water outlet switch control unit 4 is opened so that the water in the water storage container 2 is conveyed into the water receiving tray 1 through the water outlet pipeline 3 for water filling. When the liquid level in the water receiving tray 1 reaches the position where the high liquid level sensor 13 is located, the water outlet switch control unit 4 is closed to stop water filling. Therefore, in the initial state, the water level in the water receiving tray 3 reaches the highest liquid level;

[0042] (2) During the test, the evaporator 11 evaporates the water in the water receiving tray 1 into water vapor and discharges it. When the liquid level in the water receiving tray 1 reaches the position where the low liquid level sensor 12 is located, the water outlet switch control unit 4 opens to add water. When the liquid level in the water receiving tray 1 reaches the position where the high liquid level sensor 13 is located, the water outlet switch control unit 4 closes to stop adding water. This process repeats. After reaching the required number of test days, the water outlet switch control unit 4 is opened until the water level in the water receiving tray 3 returns to the highest liquid level, and the test ends.

[0043] During the water addition process, the timer of the flow measurement unit 5 times according to the opening and closing of the water outlet switch control unit 4. The timing time is multiplied by the flow rate to automatically measure the water addition volume. Since the water levels in the water receiving tray 3 are the same at the start and end of the test, the total water addition volume during the test is recorded as the total evaporation volume. In addition, the tester can also record the water volume in the water storage container 2 at the start of the test and check the remaining water volume in the water storage container 2 at the end of the test. The reduced water volume in the middle is the total water addition volume, which solves the measurement problem when the flow measurement unit 5 has problems and can also be compared with the water volume measured by the flow measurement unit 5 to confirm the accuracy of the water addition volume.

[0044] The advantages of the above solution are as follows:

[0045] First, automatic water addition is achieved through the opening and closing of the water outlet switch control unit 4, solving problems such as the manual water addition operation affecting the test conditions by moving the prototype every day and the removal of the compressor compartment cover affecting the sealing.

[0046] Second, the flow measurement unit 5 automatically measures the water addition volume, solving the error of manual water addition measurement.

[0047] Third, due to the settings of the low liquid level sensor 12 and the high liquid level sensor 13, it is ensured that the evaporated water in the water receiving tray 1 is always at the marked liquid level (i.e., between the lowest liquid level and the highest liquid level). On the one hand, it can ensure that the evaporation tube 11 is always immersed in water, avoiding the measurement accuracy of the evaporation volume of the evaporation tube 11 being affected by some evaporation tubes 11 being exposed. On the other hand, it can avoid the measurement accuracy of the evaporation volume of the evaporation tube 11 being affected by too much water overflowing or the water covering the evaporation tube 11 too much, which affects the evaporation rate.

Claims

1. An automatic water filling tooling for a refrigerator water receiving tray, comprising a water receiving tray (1) with an open top, and an evaporation pipe (11) is arranged in the water receiving tray (1), and is characterized in that: It further includes a water storage container (2); a water outlet pipeline (3) connected between the water storage container (2) and the water receiving tray (1) for conveying the water in the water storage container (2) into the water receiving tray (1); a water outlet switch control unit (4) installed on the water outlet pipeline (3) for controlling the on / off of the water outlet pipeline (3); and a flow metering unit (5) installed on the water outlet pipeline (3) and located downstream of the water outlet switch control unit (4) for measuring the water outlet flow rate of the water outlet pipeline (3).

2. The automatic water filling tooling for the refrigerator water receiving tray according to claim 1, wherein: A low-level liquid sensor (12) is provided in the water receiving tray (1), and the low-level liquid sensor (12) is higher than the evaporation pipe (11).

3. The automatic water filling tooling for the refrigerator water receiving tray according to claim 2, characterized in that: A high-level liquid sensor (13) is provided in the water receiving tray (1), and the high-level liquid sensor (13) is higher than the low-level liquid sensor (12) and lower than the top opening of the water receiving tray (1).

4. The automatic water filling tooling for the refrigerator water receiving tray according to claim 3, wherein: The automatic water filling tooling for the refrigerator water receiving tray has a controller, and the low-level liquid sensor (12), the high-level liquid sensor (13) and the water outlet switch control unit (4) are all electrically connected to the controller so that the controller can receive the signals of the low-level liquid sensor (12) and the high-level liquid sensor (13) and control the opening and closing of the water outlet switch control unit (4).

5. The automatic water filling tooling for the refrigerator water receiving tray according to claim 3, wherein: The height difference between the low-level liquid sensor (12) and the evaporation pipe (11) is 3 - 7 mm, and the height difference between the high-level liquid sensor (13) and the low-level liquid sensor (12) is 18 - 22 mm.

6. The automatic water filling tooling for the refrigerator water receiving tray according to claim 1, wherein: A gap is provided between the evaporation pipe (11) and the bottom surface of the inner cavity of the water receiving tray (1).

7. The automatic water adding tooling for the refrigerator water receiving tray according to claim 6, wherein: The height difference between the evaporation pipe (11) and the bottom surface of the inner cavity of the water receiving tray (1) is 8 - 12 mm.

8. The automatic water filling tooling for the refrigerator water receiving tray according to any one of claims 1 to 7, characterized in that: The flow metering unit (5) has a timer, the automatic water filling tooling for the refrigerator water receiving tray has a controller, and the water outlet switch control unit (4) and the flow metering unit (5) are both electrically connected to the controller so that the controller can control the start and stop of the timer of the flow metering unit (5) according to the opening and closing of the water outlet switch control unit (4).

9. The automatic water filling tooling for the refrigerator water receiving tray according to any one of claims 1 to 7, characterized in that: The bottom of the water storage container (2) has a water outlet (21), and the water outlet pipeline (3) is a gravity flow pipeline, the inlet end of which is connected to the water outlet (21), and the outlet end of which is located at the top of the water receiving tray (1).

10. The automatic water filling tooling for the refrigerator water receiving tray according to claim 9, characterized in that: The outlet end of the water outlet pipeline (3) is arranged in a vertical dislocation with the evaporation pipe (11).

11. The automatic water filling tooling for the refrigerator water receiving tray according to any one of claims 1 to 7, characterized in that: The top of the water storage container (2) has a water inlet (22), and a liquid level alarm device (23) is provided at the bottom of the inner cavity of the water storage container (2).

12. The automatic water filling tooling for the refrigerator water receiving tray according to any one of claims 1 to 7, characterized in that: The water storage container (2) is a transparent part and a water volume scale is provided on the side wall.

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