Water supply device for high and low temperature alternating damp heat test chamber

Abstract

This utility model belongs to the technical field of test chambers, and particularly relates to a water supply device for a high and low temperature alternating humidity test chamber; it includes: a test chamber cabinet with a base cabinet at the bottom; a grille located on the front side of the base cabinet; a support plate located on the right side of the test chamber cabinet; a water tank mounted on the support plate; a water supply mechanism located on the water tank and inside the base cabinet; a water supply pipe located on the upper part of the water tank; a filter element located inside the water supply pipe; a drain plug threaded to the inner wall of the water supply pipe; a slot on the filter element; a snap-fit ​​part on the drain plug, the snap-fit ​​part snapping into the slot; and a working groove in the drain plug. This utility model provides a water supply device for a high and low temperature alternating humidity test chamber that can effectively filter impurities and allows for disassembly and maintenance of the filter structure.

Description

Technical Field

[0001] This utility model belongs to the field of test chamber technology, and in particular relates to a water supply device for a high and low temperature alternating damp heat test chamber. Background Technology

[0002] High and low temperature alternating humidity test chambers are important equipment for simulating different temperature and humidity environments. They are widely used in many fields such as electronics, electrical appliances, automobiles, and aerospace to test the performance and reliability of products under complex environments. Their water supply system, as a key component, is responsible for providing a stable water source to the test chamber to meet the stringent humidity requirements during testing.

[0003] Currently, the water supply structures of existing high and low temperature alternating humidity test chambers are mostly quite simple, and they cannot effectively filter impurities in the added water during replenishment. These impurities, once inside the water supply system, easily clog pumps, pipes, and other components. Once clogged, not only does it require significant time for cleaning and maintenance, but it also significantly reduces the lifespan of core components such as pumps, increases equipment maintenance costs and downtime, and seriously affects the normal operation and testing efficiency of the test chamber.

[0004] To address the problem of impurity clogging, some water supply systems incorporate filtration structures, which can filter impurities from the incoming water to some extent, protecting components such as pumps. However, with increased usage time, a large amount of impurities gradually accumulates on the surface and within the pores of the filter structure, reducing its filtration efficiency. At this point, the filter structure needs to be disassembled for cleaning or replacement. However, existing water supply system designs often do not adequately consider the ease of disassembly of the filter structure, resulting in a cumbersome and complex disassembly process. This not only consumes significant manpower and time but also risks damaging other components of the water supply system due to improper disassembly, further increasing the difficulty and cost of equipment maintenance.

[0005] Therefore, there is an urgent need to design a water supply device for a high and low temperature alternating damp heat test chamber that can effectively filter impurities and facilitate the disassembly and maintenance of the filter structure. Utility Model Content

[0006] The purpose of this invention is to address the aforementioned technical problems by providing a water supply device for a high and low temperature alternating damp heat test chamber that can effectively filter impurities and allows for the disassembly and maintenance of the filter structure.

[0007] In view of this, the present invention provides a water supply device for a high and low temperature alternating damp heat test chamber, comprising:

[0008] The test chamber cabinet has a base cabinet at the bottom;

[0009] A grille is installed on the front side of the base cabinet;

[0010] The support plate is located on the right side of the test chamber cabinet;

[0011] The water tank is mounted on the support plate;

[0012] The water supply mechanism is mounted on the water tank and located inside the base cabinet;

[0013] The water supply pipe is located at the top of the water tank;

[0014] The filter element is installed inside the water supply pipe;

[0015] Drain plug, threaded connection to the inner wall of the water supply pipe;

[0016] The slot is located on the filter element;

[0017] A snap-fit ​​part is provided on the drain plug, and the snap-fit ​​part snaps into the slot.

[0018] The function groove is located in the drain plug.

[0019] In the above technical solution, the water supply pipe further includes an inlet channel, a filter channel, and a water supply channel. There are multiple inlet channels, all of which are connected to the filter channel. The filter element is installed inside the filter channel, and the water supply channel is connected to the water tank.

[0020] In any of the above technical solutions, the filter element is a circular mesh structure, which is disposed inside the filter channel, and the drain plug is located at the end of the filter channel.

[0021] In any of the above technical solutions, a sealing ring is further provided on the outside of both the filter element and the drain plug, and the sealing ring is in contact with the inner diameter of the filter channel.

[0022] In any of the above technical solutions, the water supply mechanism further includes:

[0023] The cooling and heating module is installed inside the lower side of the water tank;

[0024] The water supply pipe is installed on the lower side of the water tank, with one end located inside the upper side of the water tank;

[0025] The return water pipe is located inside the lower side of the water tank and is distributed adjacent to the supply water pipe.

[0026] Diverters are installed at the outer ends of the water supply pipe and the return pipe;

[0027] The water pump is connected at one end to the return water pipe and at the other end to the distributor on the return water pipe.

[0028] The U-shaped pipe is installed inside the test chamber cabinet, with one end connected to the water supply pipe distributor and the other end connected to the return water pipe distributor.

[0029] In any of the above technical solutions, the water supply pipe is provided with an inlet hole at the upper end, and the return pipe is provided with several outlet holes at the bottom.

[0030] In any of the above technical solutions, further, an insulation shell is provided on the outside of the water tank, and the insulation shell covers the outside of the water tank.

[0031] In any of the above technical solutions, furthermore, the water tank and the side wall of the insulation shell are provided with installation components for installing water supply pipes and return pipes;

[0032] The installation components include:

[0033] The mounting slot is located on the lower side of the water tank and the insulation shell;

[0034] A hollow sleeve is installed inside the mounting groove, and the water supply pipe and return pipe are installed inside the hollow sleeve.

[0035] Flanges are located on the left and right sides of the hollow sleeve, and the two flanges are snapped onto the inner wall of the water tank and the outer wall of the insulation shell.

[0036] The beneficial effects of this utility model are:

[0037] 1. By installing a filter in the water supply pipe, impurities are filtered from the water entering the water tank, preventing impurities from clogging components and reducing their service life. This ensures the stable operation of the water supply system of the high and low temperature alternating damp heat test chamber and reduces downtime and maintenance time and costs caused by equipment failure.

[0038] 2. By utilizing the threaded connection between the drain plug and the water supply pipe, as well as the snap-fit ​​between the drain plug and the filter element slot, and with the matching tools, the filter element can be easily disassembled and installed. This solves the problem of cumbersome disassembly of the filter structure in traditional water supply devices, facilitates regular cleaning or replacement of the filter element, ensures continuous and effective filtration, improves equipment maintenance efficiency, and reduces maintenance difficulty.

[0039] 3. A sealing ring is installed on the outside of the filter element and the drain plug. The sealing ring is in close contact with the inner diameter of the filter channel, which can effectively fill the gap between the filter element, the drain plug and the filter channel. This prevents water from leaking from the connection between the filter element and the channel, and between the drain plug and the channel when the water flows in the filter channel. This ensures the airtightness of the water system and ensures that all the water enters the water tank after being filtered by the filter element. This improves the effectiveness of water filtration and also prevents problems such as dampness in the surrounding environment of the test chamber and damage to the equipment due to moisture caused by water leakage.

[0040] 4. By installing a cooling and heating module in the water tank, the temperature of the water in the tank can be controlled. Combined with the water pump driving water circulation, the water with the adjusted temperature is delivered to the U-shaped tube inside the test chamber. The U-shaped tube exchanges heat with the air inside the test chamber, thereby achieving precise regulation of the temperature and humidity inside the test chamber.

[0041] 5. Several water outlets at the bottom of the return pipe release water into the bottom of the water tank in a small flow rate and dispersed spray form. The water is first heated by the cooling and heating module. The heated water forms an upward water flow force at the bottom of the water tank. This convection promotes the full mixing of water of different temperatures in the water tank, improves heat exchange efficiency, and the slow circulation convection phenomenon prevents the hot water in the water tank from losing a large amount of heat due to rapid contact with the outside or low temperature water.

[0042] 6. Installing an insulation shell on the outside of the water tank can effectively reduce the heat exchange between the water in the tank and the external environment, reduce the workload of the cooling and heating modules, and slow down the rate of water temperature change, whether it is for hot or cold water in the tank, making the water temperature in the tank more stable, thereby ensuring the accuracy and continuity of temperature and humidity regulation in the test chamber, and avoiding the loss of control of the test environment due to water temperature fluctuations.

[0043] 7. Secure the water supply and return pipes to the side walls of the water tank and insulation shell by installing the components. This ensures a stable connection of the water circulation system's pipes and prevents the pipes from becoming loose, displaced, or even falling off due to factors such as vibrations from the water pump or fluctuations in water pressure. This ensures the stable operation of the water circulation system and prevents malfunctions such as leaks or poor water flow caused by pipe connection problems, which could affect the temperature and humidity control effect of the test chamber. Attached Figure Description

[0044] Figure 1 This is a first three-dimensional structural schematic diagram of this utility model;

[0045] Figure 2 This is a schematic diagram of the second three-dimensional structure of this utility model;

[0046] Figure 3 This is a three-dimensional structural diagram of the water supply mechanism of this utility model;

[0047] Figure 4 This is a cross-sectional view of the water supply pipe of this utility model;

[0048] Figure 5 This is a three-dimensional structural diagram of the filter element of this utility model;

[0049] Figure 6 This is a three-dimensional structural diagram of the drain plug of this utility model;

[0050] Figure 7 This is a partial three-dimensional structural schematic diagram of the present invention;

[0051] The attached diagram is labeled as follows: 1. Test chamber cabinet; 2. Base cabinet; 3. Grille; 4. Support plate; 5. Water tank; 51. Water supply pipe; 52. Water inlet channel; 53. Filter channel; 54. Water supply channel; 6. Filter element; 61. Slot; 7. Drain plug; 8. Snap-fit ​​part; 81. Functional groove; 9. Sealing ring; 10. Water supply mechanism; 101. Cooling and heating module; 102. Water supply pipe; 103. Return water pipe; 104. Diverter; 105. Water pump; 106. U-shaped pipe; 11. Water inlet; 12. Water outlet; 13. Insulation shell; 14. Mounting assembly; 141. Mounting groove; 142. Hollow sleeve; 143. Flange. Detailed Implementation

[0052] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0053] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0054] Example 1:

[0055] like Figures 1-7 As shown, this embodiment provides a water supply device for a high and low temperature alternating damp heat test chamber, including:

[0056] The test chamber cabinet 1 has a base cabinet 2 at its bottom;

[0057] Grille 3 is located on the front side of base cabinet 2;

[0058] Support plate 4 is located on the right side of the test chamber cabinet 1;

[0059] Water tank 5 is installed on support plate 4;

[0060] The water supply mechanism 10 is installed on the water tank 5 and located inside the base cabinet 2;

[0061] Water supply pipe 51 is located on the upper part of water tank 5;

[0062] Filter element 6 is installed inside water supply pipe 51;

[0063] Drain plug 7 is threaded to the inner wall of water supply pipe 51;

[0064] Card slot 61 is provided on filter element 6;

[0065] The snap-fit ​​part 8 is provided on the drain plug 7 and snaps into the slot 61.

[0066] The function groove 81 is located in the drain plug 7.

[0067] In this technical solution, a filter element 6 is installed inside the water supply pipe 51 to filter impurities from the water entering the water tank 5. This prevents impurities in the water from entering the subsequent water supply mechanism 10 (such as pumps), thus preventing impurities from clogging components, reducing their service life, ensuring the stable operation of the high and low temperature alternating humidity test chamber's water supply system, and reducing downtime and maintenance costs due to equipment failure. The drain plug 7 is connected to the water supply pipe 51 by a thread, and the drain plug 7's locking part 8 and the filter element 6's locking groove 61 are engaged, along with appropriate tools, to facilitate easy installation and removal of the filter element 6. This solves the problem of cumbersome disassembly of traditional water supply device filter structures, facilitates regular cleaning or replacement of the filter element 6, ensures continuous and effective filtration, improves equipment maintenance efficiency, and reduces maintenance difficulty. The water tank 5 is installed on the right support plate 4 of the test chamber cabinet 1, and the water supply mechanism 10 is placed inside the base cabinet 2, making the entire water supply device compact and reasonably laid out. It not only utilizes the space of the test chamber cabinet 1 to achieve component integration, but also ensures the functional coordination of each component through reasonable structural design, meeting the needs of high and low temperature alternating damp heat test for stable water supply and convenient maintenance.

[0068] Working Principle: When water needs to be added to water tank 5, water enters water tank 5 through water supply pipe 51. During the water flow through water supply pipe 51, the filter element 6 inside water supply pipe 51 plays its role, using its own structure to intercept impurities in the water, allowing the filtered water to enter water tank 5, providing a clean water source for the subsequent humid and hot environment simulation of the test chamber. When the filter element 6 needs to be cleaned or replaced due to excessive interception of impurities, a tool adapted to the action groove 81 of the drain plug 7 (such as a wrench of a specific shape) is used. Insert the tool into the action groove 81, and rotate the tool to rotate the drain plug 7. Since the drain plug 7 is threadedly connected to the inner wall of water supply pipe 51, under the action of rotational force, the drain plug 7 gradually unscrews out of water supply pipe 51. At the same time, because the locking part 8 of drain plug 7 engages with the locking groove 61 of filter element 6, the process of drain plug 7 unscrewing will also take the filter element 6 out of water supply pipe 51, making it convenient to clean or replace the filter element 6. After cleaning or replacing the filter element 6, place the filter element 6 into the water supply pipe 51, align the snap-fit ​​part 8 of the drain plug 7 with the slot 61 of the filter element 6 and snap it in; then rotate the adapter tool in the opposite direction to rotate the drain plug 7, so that the drain plug 7 gradually engages with the thread on the inner wall of the water supply pipe 51, until the drain plug 7 is firmly installed on the water supply pipe 51, and the filter element 6 is also fixed in the water supply pipe 51, restoring its filtration function and ensuring that the subsequent water supply filtration process can continue.

[0069] like Figure 3 and Figure 4 As shown, in this embodiment, the optimized water supply pipe 51 includes an inlet channel 52, a filter channel 53, and a water supply channel 54. The inlet channel 52 has multiple channels, all of which are connected to the filter channel 53. The filter element 6 is installed inside the filter channel 53, and the water supply channel 54 is connected to the water tank 5.

[0070] In this technical solution, by dividing the water supply pipe 51 into a three-section structure of "water inlet channel 52, filtration channel 53, and water supply channel 54," and setting multiple water inlet channels 52 converging into the filtration channel 53, the water supply source can be dispersed first and then filtered centrally. This design increases the contact area and time between the water flow and the filter element 6, allowing impurities to be more fully intercepted by the filter element 6, avoiding impurities from being missed due to concentrated water flow impact, improving the overall filtration effect of the water supply, and further ensuring the cleanliness and stable operation of the subsequent water supply mechanism 10 (such as pumps and pipelines). When multiple water inlet channels 52 supply water simultaneously, the water flow pressure can be evenly distributed, avoiding impact damage to the filter element 6 caused by local high pressure during single-channel water supply (such as deformation or breakage of the filter element 6 leading to filtration failure). At the same time, dispersed water intake allows the water flow to pass through the filter element 6 more evenly, reducing filtration dead zones, improving filtration efficiency, and ensuring that the water quality entering the water tank 5 is more stable and clean. The segmented water supply pipe 51 structure allows the installation and replacement of filter element 6 to focus on the independent section of "filter channel 53". If filter element 6 needs to be upgraded in the future (such as replacing it with a finer filter screen), only filter channel 53 needs to be adjusted, without having to modify the entire water supply pipe 51. At the same time, the clear division of functions of the channels (water inlet → filtration → water supply) also makes it easier to troubleshoot water circuit faults (such as quickly locating blockages or leaks in a certain channel).

[0071] Working Principle: When external water enters the water supply pipe 51, it first flows into multiple inlet channels 52. Because the inlet channels 52 are designed as "multi-channel parallel," the water flow is naturally dispersed, forming multiple tributaries. This dispersion design reduces the impact force of a single water flow and makes subsequent filtration more uniform. After the multiple tributaries converge into the filter channel 53, they flow through the filter element 6 (such as a filter screen or filter cartridge) installed there. When the water flows through the filter element 6, impurities are intercepted on the surface or inside the filter element 6, while clean water flows through the filter element 6 and enters the water supply channel 54. Since the filter channel 53 is a "centralized filtration area" for the water flow, it ensures that all water supply is purified by the filter element 6, preventing impurities from entering the water tank 5. The filtered clean water flows directly into the water tank 5 through the water supply channel 54, providing a stable, impurity-free water source for simulating the humid and hot environment of the test chamber. The water in the subsequent water tank 5 then circulates within the test chamber through the water supply mechanism 10 (such as a pump or pipeline). Since the replenished water is filtered, the risk of blockage in the entire water supply system is reduced. If it is necessary to clean or replace the filter element 6, since the filter element 6 is only installed in the filter channel 53 and the channel structure is independent, it is only necessary to open the drain plug 7 and the snap-fit ​​structure of the filter channel 53 to quickly remove, clean, or replace the filter element 6 without affecting the basic structure of the water inlet channel 52 and the water supply channel 54, greatly simplifying the maintenance process.

[0072] Example 2:

[0073] This embodiment provides a water supply device for a high and low temperature alternating damp heat test chamber, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0074] like Figures 1-5 As shown, in this embodiment, the optimized filter element 6 is a circular mesh structure, which is disposed inside the filter channel 53, and the drain plug 7 is located at the end of the filter channel 53.

[0075] In this technical solution, the filter element 6, with its circular mesh structure, can more fully cover the water flow cross-section within the filter channel 53 compared to other shapes. The circumferential uniformity of the circle allows water to contact the filter screen evenly from all directions, comprehensively intercepting impurities and preventing water flow bypass and impurity leakage due to an unreasonable shape of the filter element 6. This improves the filtration effect on impurities in the replenished water, ensuring the cleanliness of the water entering the water tank 5 and reducing malfunctions of the subsequent water supply mechanism 10 caused by impurities. Placing the filter element 6 inside the filter channel 53, with the drain plug 7 located at the end of the filter channel 53, ensures that the filter element 6 is stably positioned in a critical position in the filtration process after installation. The circular structure adapts to the spatial shape of the filter channel 53, facilitating installation and positioning. Furthermore, the design of the drain plug 7 at the end allows for stable removal or installation of the circular filter element 6 during disassembly or assembly, preventing deformation or displacement of the filter element 6 during the process. This enhances the convenience and stability of filter element 6 disassembly and assembly, facilitating regular cleaning or replacement of the filter element 6 and maintaining effective filtration.

[0076] Working principle: When the replenishing water source enters the inlet channel 52 of the replenishing water pipe 51, multiple water streams converge into the filter channel 53. Since the filter element 6 has a circular mesh structure and is located inside the filter channel 53, the water flow within the filter channel 53 will contact the mesh surface of the circular filter element 6 from all directions. Impurities in the water are intercepted by the mesh openings of the circular filter and cannot pass through the filter, while the filtered clean water passes through the filter and flows from the filter channel 53 to the water supply channel 54, and then into the water tank 5, thus achieving the interception and filtration of impurities in the replenishing water and providing a clean water source for the test chamber. When it is necessary to clean or replace the filter element 6, use the adapter tool in conjunction with the groove 81 of the drain plug 7. Because the drain plug 7 is located at the end of the filter channel 53 and is threadedly connected to the inner wall of the filter channel 53, rotating the adapter tool will rotate the drain plug 7, and the drain plug 7 will gradually unscrew out of the filter channel 53 along the threads. Furthermore, because the slot 61 of the filter element 6 engages with the locking part 8 of the drain plug 7, during the unscrewing of the drain plug 7, the circular filter element 6 will be simultaneously removed from the filter channel 53 via the locking structure, facilitating cleaning or replacement of the filter element 6. After cleaning or replacement, the filter element 6 is placed back into the filter channel 53, allowing the locking part 8 to re-engage with the slot 61. The tool is then rotated in the opposite direction to screw the drain plug 7 into the end of the filter channel 53 and tighten it. The filter element 6 is then stably reinstalled in the filter channel 53, restoring its filtration function and ensuring the continued operation of subsequent water replenishment filtration processes.

[0077] like Figure 4 and Figure 5 As shown, in this embodiment, the filter element 6 and the drain plug 7 are both provided with sealing rings 9 on their outer sides, and the sealing rings 9 are in contact with the inner diameter of the filter channel 53.

[0078] In this technical solution, a sealing ring 9 is provided on the outside of the filter element 6 and the drain plug 7. The sealing ring 9 is in close contact with the inner diameter of the filter channel 53, which can effectively fill the gap between the filter element 6, the drain plug 7 and the filter channel 53. This prevents leakage from the connection between the filter element 6 and the channel, and between the drain plug 7 and the channel when the makeup water flows in the filter channel 53, ensuring the airtightness of the water system. This ensures that all makeup water enters the water tank 5 after being filtered by the filter element 6, improving the effectiveness of makeup water filtration, and preventing problems such as dampness in the surrounding environment of the test chamber and damage to the equipment due to moisture caused by leakage. When the sealing ring 9 contacts the inner diameter of the filter channel 53, it will produce a certain elastic deformation, providing elastic support and limiting for the filter element 6 and the drain plug 7. During the operation of the filter element 6 and the disassembly and assembly of the drain plug 7, it reduces the displacement of the filter element 6 and the loosening of the drain plug 7 caused by water flow impact and external operating forces, ensuring that the filter element 6 is always stably in the effective filtration position within the filter channel 53, and ensuring the tightness of the connection between the drain plug 7 and the channel, thereby improving the overall stability and reliability of the water supply device.

[0079] The sealing ring 9 is made of elastic materials such as rubber, possessing a certain degree of elasticity and toughness. When the filter element 6 is operating normally, water flow impacts it, and the sealing ring 9 absorbs some of the impact force through elastic deformation, reducing vibration and displacement of the filter element 6. When removing or installing the drain plug 7 to take out or install the filter element 6, the friction and elastic support between the sealing ring 9 and the inner wall of the channel help position the filter element 6, making it easier to align during installation and ensuring the accuracy and stability of the filter element 6 installation. It also makes the connection between the drain plug 7 and the channel tighter, preventing loosening and leakage due to external forces.

[0080] Example 3:

[0081] This embodiment provides a water supply device for a high and low temperature alternating damp heat test chamber, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0082] like Figures 1-3 As shown, in this embodiment, the optimized water supply mechanism 10 includes:

[0083] The cooling and heating module 101 is installed inside the lower side of the water tank 5;

[0084] Water supply pipe 102 is installed on the lower side of water tank 5, with one end located on the upper side inside water tank 5;

[0085] The return water pipe 103 is located inside the lower side of the water tank 5, and the return water pipe 103 is distributed adjacent to the water supply pipe 102.

[0086] Diverter 104 is installed at the outer ends of water supply pipe 102 and water return pipe 103;

[0087] The water pump 105 is connected at one end to the return water pipe 103 and at the other end to the distributor 104 on the return water pipe 103.

[0088] The U-shaped pipe 106 is installed inside the test chamber cabinet 1, with one end connected to the distributor 104 of the water supply pipe 102 and the other end connected to the distributor 104 of the return water pipe 103.

[0089] In this technical solution, a cooling and heating module 101 is installed inside the water tank 5 to regulate the temperature of the water in the tank 5. Combined with a water pump 105 driving water circulation, the temperature-regulated water is delivered to the U-shaped pipe 106 inside the test chamber cabinet 1. The U-shaped pipe 106 facilitates heat exchange with the air inside the test chamber, achieving precise regulation of temperature and humidity within the test chamber, meeting the stringent environmental requirements of high and low temperature alternating damp heat tests. The water supply mechanism 10, through the coordinated operation of the water supply pipe 102, return pipe 103, distributor 104, water pump 105, and U-shaped pipe 106, constructs a complete and efficient water circulation system. The water pump 105 provides power, ensuring continuous water circulation within the system, enabling continuous temperature regulation of the water in the water tank 5 and delivery to the test chamber for heat exchange, thus guaranteeing the stability and continuity of the temperature and humidity environment within the test chamber. The cooling and heating module 101 is installed inside the lower part of the water tank 5. The water supply pipe 102 and the return water pipe 103 are respectively located on the lower part of the water tank 5 and are distributed adjacent to each other, making the internal structure of the water tank 5 compact and reasonable. This layout is conducive to the return water fully contacting the cooling and heating module 101 in the water tank 5 first, preventing the hot and cold water passing through the U-shaped pipe 106 from directly contacting the heated or cooled water when it returns to the water tank 5, which would cause the heated or cooled water to lose heat quickly, thus achieving efficient temperature regulation. At the same time, the distributor 104 at the outer end of the water supply pipe 102 and the return water pipe 103 facilitates connection with the water pump 105 and the U-shaped pipe 106, ensuring the stable operation of the water circulation system and reducing problems such as poor water flow and low heat exchange efficiency caused by unreasonable layout.

[0090] Working Principle: The cooling and heating module 101 cools or heats the water in the water tank 5 according to the required temperature and humidity parameters of the test chamber. When it is necessary to lower the test chamber temperature, the cooling and heating module 101 activates the cooling function, absorbing heat from the water in the water tank 5 to lower the water temperature; when it is necessary to raise the test chamber temperature, the cooling and heating module 101 activates the heating function, heating the water in the water tank 5, thereby achieving precise control of the water temperature. Driven by the water pump 105, water is drawn from the water tank 5. Because one end of the U-shaped pipe 106 is connected to the distributor 104 of the return water pipe 103 and the other end is connected to the distributor 104 of the supply water pipe 102, when the water pump 105 starts, water flows from the supply water pipe 102 through the distributor 104 into the U-shaped pipe 106. The water exchanges heat with the air in the test chamber in the U-shaped pipe 106, absorbing or releasing heat, thereby regulating the temperature and humidity inside the test chamber. After passing through the U-shaped pipe 106, the water flows back into the water tank 5 through the distributor 104 and the return pipe 103 (a one-way valve is provided in the return pipe 103 to prevent water in the water tank 5 from entering the U-shaped pipe 106 through the return pipe 103). Since the return pipe 103 is located on the lower side inside the water tank 5, the returning water first comes into full contact with the cooling and heating module 101 in the water tank 5. The water heated or cooled by the cooling and heating module 101 mixes with the heated and cooled water above the water tank 5, preventing the hot and cold water passing through the U-shaped pipe 106 from directly contacting the heated or cooled water when it flows back to the water tank 5, which would cause the heated or cooled water to lose heat quickly. This ensures the stable and efficient operation of the water circulation system and continuously provides the test chamber with environmental conditions that meet the temperature and humidity requirements.

[0091] like Figure 3 As shown, in this embodiment, the water supply pipe 102 is provided with an inlet hole 11 at the upper end, and the return pipe 103 is provided with several outlet holes 12 at the bottom.

[0092] In this technical solution, by setting an inlet hole 11 at the upper end of the water supply pipe 102 and an outlet hole 12 at the bottom of the return water pipe 103, the convection phenomenon of water flow is utilized to promote heat exchange of the water in the water tank 5. This allows water of different temperatures in the water tank 5 to mix thoroughly, making the water temperature adjusted by the cooling and heating module 101 more uniform, improving heat exchange efficiency, and avoiding uneven temperature and humidity regulation in the test chamber due to water temperature stratification, thus ensuring the stability and accuracy of the test environment. The outlet hole 12 at the bottom of the return water pipe 103 sprays a small amount of water back into the water tank 5, forming a slow circulation convection, slowing down the rate of heat loss from the hot water. This prevents the hot water in the water tank 5 from being repeatedly heated due to rapid cooling, reducing energy consumption and operating costs, while also ensuring the stability of the water supply temperature and avoiding the impact of water temperature fluctuations on the temperature and humidity control effect of the test chamber. The layout design of the inlet hole 11 and the outlet hole 12, together with other components of the water supply mechanism 10, makes the water circulation system operate more stably. A reasonable water flow inlet and outlet method avoids excessive water flow impact that could damage the internal structure of water tank 5, and also prevents water circulation problems caused by turbulent water flow, ensuring that the entire water supply device can continuously and stably provide the test chamber with a water source that meets the temperature and humidity requirements.

[0093] Working Principle: Driven by the water pump 105, water in the water tank 5 enters through the inlet hole 11 at the upper end of the water supply pipe 102. After heat exchange with the air inside the test chamber via the distributor 104 and U-shaped pipe 106, the water flows back to the water tank 5 through the return pipe 103. Several outlet holes 12 at the bottom of the return pipe 103 release water into the bottom of the water tank 5 in a small-flow, dispersed spray. The water sprayed from the outlet holes 12 at the bottom of the return pipe 103 is first heated by the cooling and heating module 101. The heated water forms an upward water flow force at the bottom of the water tank 5. During the upward movement of the low-temperature water, it encounters the existing hot water in the water tank 5. Due to the density difference, the hot water flows upward and the low-temperature water flows downward, forming a natural convection phenomenon. This convection promotes the thorough mixing of water at different temperatures in the water tank 5, so that the heat regulated by the cooling and heating module 101 is evenly distributed in the water tank 5, improving the heat exchange efficiency. The slow-circulating convection prevents the hot water in tank 5 from losing a large amount of heat due to rapid contact with the outside environment or low-temperature water. The small amount of water sprayed from the return pipe 103 creates minimal water flow disturbance, reducing heat conduction between the hot water and the tank 5 wall, and slowing down the rate at which heat is lost to the outside through the tank 5 wall. Simultaneously, the continuous mixing of hot and low-temperature water during convection maintains a relatively stable overall water temperature, preventing frequent activation of the cooling / heating module 101 for reheating due to rapid temperature drops. This achieves energy saving and consumption reduction, ensuring the stability and continuity of temperature and humidity control in the test chamber.

[0094] like Figures 1-3 As shown, in this embodiment, the water tank 5 is provided with an insulation shell 13 on the outside, and the insulation shell 13 covers the outside of the water tank 5.

[0095] In this technical solution, an insulation shell 13 is installed on the outside of the water tank 5, which effectively reduces heat exchange between the water in the water tank 5 and the external environment, reducing the workload of the cooling and heating module 101. Whether controlling the temperature of hot or cold water in the water tank 5, the insulation shell 13 slows down the rate of water temperature change, making the water temperature in the water tank 5 more stable. This ensures the accuracy and continuity of temperature and humidity regulation in the test chamber, preventing the test environment from becoming uncontrollable due to water temperature fluctuations. By reducing heat loss from the water tank 5, the operating time and energy consumption required by the cooling and heating module 101 to maintain the water temperature are reduced. Frequent activation of heating or cooling functions due to rapid heat loss is avoided, saving energy consumption, reducing equipment operating costs, and extending the service life of key components such as the cooling and heating module 101, reducing equipment maintenance frequency. A stable water temperature in the water tank 5 helps to more accurately control the temperature and humidity environment inside the test chamber. It reduces interference caused by unstable water temperature in the water tank 5 on the temperature and humidity regulation of the test chamber, ensuring that temperature and humidity parameters meet standard requirements during the test, improving the reliability and repeatability of test results, and providing more stable environmental conditions for various tests.

[0096] Example 4:

[0097] This embodiment provides a water supply device for a high and low temperature alternating damp heat test chamber, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0098] like Figure 1 and Figure 3 As shown, in this embodiment, the water tank 5 and the insulation shell 13 are optimized to have an installation assembly 14 on their side walls for installing the water supply pipe 102 and the return pipe 103.

[0099] Installation component 14 includes:

[0100] The mounting groove 141 is located on the lower side of the water tank 5 and the insulation shell 13;

[0101] A hollow sleeve 142 is disposed inside the mounting groove 141, and a water supply pipe 102 and a water return pipe 103 are disposed inside the hollow sleeve 142;

[0102] Flanges 143 are located on the left and right sides of the hollow sleeve 142, and the two flanges 143 are snapped onto the inner wall of the water tank 5 and the outer wall of the insulation shell 13.

[0103] In this technical solution, the water supply pipe 102 and the return pipe 103 are fixed to the side walls of the water tank 5 and the insulation shell 13 by the installation component 14, ensuring a stable connection of the water circulation system's pipelines. This prevents the pipelines from loosening, shifting, or even falling off due to factors such as vibrations caused by the operation of the water pump 105 and fluctuations in water pressure, ensuring the stable operation of the water circulation system and preventing malfunctions such as leaks and poor water flow caused by pipeline connection problems, which could affect the temperature and humidity control effect of the test chamber. The installation component 14 allows the water supply pipe 102 and the return pipe 103 to pass through the water tank 5 and the insulation shell 13 through the hollow sleeve 142, ensuring complete coverage of the water tank 5 by the insulation shell 13 while installing the pipelines. This prevents damage to the insulation shell 13 structure due to pipeline installation, avoids heat loss through the gaps between the pipelines and the insulation shell 13, maintains good insulation performance of the water tank 5, ensures stable water temperature inside the water tank 5, and reduces the energy consumption of the cooling and heating module 101. The mounting component 14 adopts a modular design, which simplifies the installation process of the water supply pipe 102 and the return pipe 103 through the cooperation of the mounting groove 141, the hollow sleeve 142 and the flange 143. During installation, simply insert the hollow sleeve 142 into the mounting groove 141, pass the pipe through the hollow sleeve 142, and fix it with the flange 143; it can also be quickly separated during disassembly and maintenance, which is convenient for inspection and replacement of pipes, water tank 5 or insulation shell 13, improving equipment maintenance efficiency and reducing maintenance difficulty.

[0104] Working principle: When installing the water supply pipe 102 and the return pipe 103, firstly, a hollow sleeve 142 is placed in the mounting groove 141 at the lower side of the water tank 5 and the insulation shell 13. The hollow sleeve 142 serves as a conduit for the pipes, and its internal space is adapted to the outer diameter of the water supply pipe 102 and the return pipe 103, providing positioning and support for the pipes. Subsequently, the water supply pipe 102 and the return pipe 103 are passed through the hollow sleeve 142 respectively, allowing the pipes to extend from inside the hollow sleeve 142 into the water tank 5. Finally, flanges 143 are installed on the left and right sides of the hollow sleeve 142, with the left flange 143 tightly fitted to the inner wall of the water tank 5 and the right flange 143 tightly fitted to the outer wall of the insulation shell 13. The flanges 143 are fixed by bolts or other fastening methods, so that the hollow sleeve 142 is securely embedded between the water tank 5 and the insulation shell 13, thereby firmly fixing the water supply pipe 102 and the return pipe 103 in the predetermined position. The snap-fit ​​design of flange 143 not only secures hollow sleeve 142 but also seals the gaps between water supply pipe 102, return pipe 103, water tank 5, and insulation shell 13. Flange 143 fits tightly against the inner wall of water tank 5 and the outer wall of insulation shell 13, and, with the aid of a sealing gasket (if applicable), prevents water leakage and heat loss. Hollow sleeve 142 provides rigid support for the pipeline, reducing displacement caused by water flow impact and pump 105 vibration, ensuring secure pipeline connections, and guaranteeing stable operation of the water circulation system.

[0105] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A water supply device for a high and low temperature alternating damp heat test chamber, characterized by, include: The test chamber cabinet (1) has a base cabinet (2) at its bottom. A grille (3) is provided on the front side of the base cabinet (2); A support plate (4) is provided on the right side of the test chamber cabinet (1); Water tank (5) is installed on the support plate (4); A water supply mechanism (10) is installed on the water tank (5) and located inside the base cabinet (2); A water supply pipe (51) is installed on the upper part of the water tank (5); A filter element (6) is disposed inside the water supply pipe (51); The drain plug (7) is threaded to the inner wall of the water supply pipe (51); A slot (61) is provided on the filter element (6); A snap-fit ​​part (8) is provided on the drain plug (7), and the snap-fit ​​part (8) snaps into the slot (61); The function groove (81) is formed in the drain plug (7).

2. The water supply device for a high-low temperature alternate wet heat test chamber according to claim 1, wherein The water supply pipe (51) includes an inlet channel (52), a filter channel (53) and a water supply channel (54). The inlet channel (52) has multiple channels, and all multiple inlet channels (52) are connected to the filter channel (53). The filter element (6) is installed in the filter channel (53). The water supply channel (54) is connected to the water tank (5).

3. The water supply device for a high-low temperature alternate damp heat test chamber according to claim 2, wherein The filter element (6) is a circular mesh structure, which is disposed inside the filter channel (53), and the drain plug (7) is located at the end of the filter channel (53).

4. The water supply device for a high-low temperature alternate wet heat test chamber according to claim 3, wherein Both the filter element (6) and the drain plug (7) are provided with sealing rings (9) on their outer sides, and the sealing rings (9) are in contact with the inner diameter of the filter channel (53).

5. The water supply device for a high-low temperature alternate wet heat test chamber according to claim 1, wherein The water supply unit (10) includes: A cooling and heating module (101) is installed inside the lower side of the water tank (5); A water supply pipe (102) is installed on the lower side of the water tank (5), with one end located on the upper side inside the water tank (5); The return water pipe (103) is located inside the lower side of the water tank (5), and the return water pipe (103) is distributed adjacent to the water supply pipe (102); A diverter (104) is disposed at the outer end of the water supply pipe (102) and the return pipe (103); A water pump (105) is connected at one end to the return water pipe (103) and at the other end to the distributor (104) on the return water pipe (103); A U-shaped pipe (106) is installed inside the test chamber cabinet (1), with one end connected to the distributor (104) of the water supply pipe (102) and the other end connected to the distributor (104) of the return water pipe (103).

6. The water supply device for a high-low temperature alternate wet heat test chamber according to claim 5, wherein The water supply pipe (102) has an inlet hole (11) at the upper end, and the return pipe (103) has several outlet holes (12) at the bottom.

7. The water supply device for a high-low temperature alternate wet heat test chamber according to claim 5, wherein The water tank (5) is provided with an insulation shell (13) on the outside, and the insulation shell (13) covers the outside of the water tank (5).

8. The water supply device for a high-low temperature alternate wet heat test chamber according to claim 7, wherein The side walls of the water tank (5) and the insulation shell (13) are provided with mounting components (14) for installing the water supply pipe (102) and the return pipe (103). The installation component (14) includes: The mounting groove (141) is provided on the lower side of the water tank (5) and the insulation shell (13); A hollow sleeve (142) is arranged inside the mounting groove (141), and the water supply pipe (102) and the return pipe (103) are arranged in the hollow sleeve (142); Flanges (143) are arranged on the left and right sides of the hollow sleeve (142), and the two flanges (143) are clamped on the inner wall of the water tank (5) and the outer wall of the heat preservation shell (13).

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