A multi-working-condition simulated evaporator water content testing device
The evaporator moisture testing equipment, which simulates multiple operating conditions, solves the problem that existing equipment cannot simulate complex operating conditions, enabling accurate testing of evaporators under different environments and improving the reference value and accuracy of test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 光克(上海)工业自动化科技有限公司
- Filing Date
- 2026-03-03
- Publication Date
- 2026-06-05
Smart Images
Figure CN122149900A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of testing equipment technology, specifically to a multi-condition simulation evaporator moisture testing device. Background Technology
[0002] This invention relates to the field of evaporator testing technology, specifically to evaporator moisture testing equipment, which is particularly suitable for multi-condition simulation testing of moisture evaporation and surface frost conditions of vehicle evaporators. As a core component of the vehicle air conditioning system, the evaporator's internal refrigerant evaporation efficiency directly determines the air conditioning cooling efficiency, while the frost thickness and moisture evaporation rate on the external surface affect the airflow cooling effect and ventilation smoothness. Therefore, accurate testing of the moisture and frost evaporation state of the evaporator under actual operating conditions is a key link in evaporator research and development optimization and production quality inspection.
[0003] Currently, the moisture testing equipment for evaporators in the industry has many technical defects and can no longer meet the needs of refined and practical testing. The existing testing equipment has limited operating condition simulation capabilities and can only complete basic tests in a static environment with normal temperature and humidity. It cannot simultaneously simulate the complex actual operating conditions faced by the evaporator during vehicle operation, such as dynamic changes in temperature and humidity, directional airflow, and vehicle vibration. This results in a serious disconnect between the testing environment and the actual application scenario, greatly reducing the reference value of the test results and making it difficult to support the performance optimization of the evaporator under complex operating conditions. Summary of the Invention
[0004] The technical problem this invention aims to solve is that most basic tests are performed in a static environment with normal temperature and humidity, which cannot simultaneously simulate the complex working conditions faced by the evaporator during vehicle operation, such as dynamic changes in temperature and humidity, directional airflow, and vehicle vibration. This results in a large difference between the test environment and the actual working scenario of the evaporator, and the test results have low reference value. Therefore, this invention provides an evaporator moisture testing device that simulates multiple working conditions.
[0005] To achieve the above objectives, the present invention provides the following technical solution: the testing equipment includes a housing assembly and a simulation assembly; The housing assembly includes a clamping assembly and a sealing assembly, with the clamping assembly located within the sealing assembly; The simulation component includes a condition adjustment component, a vibration component, and a detection component. The vibration component is located at the bottom of the condition adjustment component, and the detection components are located on both sides of the condition adjustment component. The operating condition adjustment component is connected to the sealing component, the detection component is located inside the sealing component, and the detection component is connected to the clamping component. The operating condition adjustment component is used to adjust the temperature and humidity of the test environment and simulate the airflow state. The operating condition adjustment component includes several fans and a contact plate. The contact plate is located on one side of the evaporator, and the fans are located on the other side of the evaporator. Several cavities are opened inside the contact plate. An infrared thermal imaging unit is provided on the side of the contact plate close to the evaporator. Rotary blocks are provided in each of the cavities. Moisture-absorbing layers are alternately provided on the outer wall of the rotating blocks. A coil is provided on the outer sleeve of the rotating blocks. The coil is connected to the inner wall of the cavity. Fan blades are provided on the side of the rotating blocks close to the evaporator.
[0006] The moisture testing equipment is used to monitor the evaporation of liquid inside the evaporator and the evaporation of external frost. The evaporation efficiency of the liquid inside the evaporator affects its overall efficiency, while the evaporation efficiency of the external frost affects the cooling and ventilation efficiency of the gas. The housing assembly houses and secures the evaporator. The simulation assembly simulates various operating conditions for the evaporator within the housing assembly, testing its evaporation under different conditions. The clamping assembly secures the evaporator, and the sealing assembly provides a sealed environment for easy adjustment of operating conditions. The operating condition adjustment assembly regulates the temperature and humidity within the sealed assembly. The vibration assembly simulates vibrations generated by vehicle movement and detects the amount of liquid generated during the evaporation process of external frost on the evaporator. The fan provides gas flow to simulate normal evaporator operation, the contact plate receives airflow and simultaneously monitors the evaporator temperature, and the infrared thermal imaging unit detects overall temperature changes within the evaporator. The rotating block is a magnetic component; when refrigerant is introduced into the evaporator, the entire evaporator begins to cool down, and the infrared thermal imaging unit detects these temperature changes indirectly. Knowing the refrigerant evaporation efficiency, when the fan on the other side of the evaporator starts working, the airflow first passes through the evaporator, then flows to the contact plate, and finally flows to the cavity on the contact plate, thus driving the fan blades inside the cavity to rotate. The rotation of the fan blades drives the rotating blocks to rotate. Since the rotating blocks are inside the coil, the magnetic field of the rotating blocks themselves cuts the coil, generating an induced current. The airflow magnitude is positively correlated with the magnitude of the induced current, indirectly determining the airflow magnitude. There are several cavities. Based on the different positions of the cavities, the airflow velocity in the corresponding area is determined, which is convenient for subsequent frost evaporation detection. Finally, since the number of rotating blocks is the same as the number of cavities, and the outer wall of the rotating blocks is alternately equipped with a moisture-absorbing layer, when the moisture on the evaporator surface evaporates too slowly or is evaporating, the passing gas will be accompanied by humidity. As a result, the moisture-absorbing layer is affected by the moisture, and the weight of the corresponding rotating block increases, which leads to a slower rotation speed. As a result, in a local area, there will be a large numerical difference between the rotating blocks with moisture-absorbing layers and the corresponding rotating blocks. The gas humidity is positively correlated with the numerical difference. The higher the humidity, the larger the difference, thus determining the humidity of the local area, and also facilitating the determination of the evaporation efficiency of the liquid on the evaporator surface.
[0007] Furthermore, the operating condition adjustment component also includes a mounting plate located on one side of the fan. A heating element is provided on the side of the mounting plate facing the evaporator. The mounting plate has several openings, which are on the same central axis as the adjacent fan. Each opening is equipped with a humidification unit.
[0008] The mounting plate is located on the side of the evaporator away from the contact plate. The mounting plate is used to install the fan, so that the fans can be arranged at equal intervals. The heating element on the same side as the fan is used to control the temperature in the sealed space. When the fan is not working, the heating element works to regulate the temperature in the sealed assembly. When the fan starts working, the heating element works to regulate the temperature of the airflow output by the fan. The humidification unit is used to control the humidity of the flowing gas, which is convenient for multi-condition simulation.
[0009] Furthermore, the clamping assembly includes an extension located on both sides of the evaporator. One side of the extension has several connectors, and the side of the connectors close to the evaporator has a clamping plate.
[0010] The clamping assembly is used to fix the evaporator. The extension is a rigid structural component, symmetrically arranged on both sides of the evaporator. The bottom end of the extension is fixedly connected to the top of the base plate in the vibration assembly, so that the vibration generated by the vibration assembly can be synchronously transmitted to the clamped evaporator. The connecting piece is a transition structure between the extension and the clamping plate, ensuring that the clamping force of the clamping plate on the evaporator is evenly distributed, avoiding excessive local clamping force that could damage the evaporator structure, or insufficient clamping force that could lead to insecure fixation. The clamping plate is made of elastic and wear-resistant material, and its side in contact with the evaporator has anti-slip texture. On the one hand, the elastic contact buffers the clamping force, protecting the outer surface of the evaporator from scratches and squeezing damage. On the other hand, the anti-slip texture increases the friction between the clamping plate and the evaporator, improving the clamping and fixing effect. Several clamping plates fit against the outer surface of the evaporator, forming a clamping and fixing effect from both sides of the evaporator. With the support of the extension and connecting parts, the evaporator is kept vertical and centered, maintaining a preset relative position with the fan and contact plate of the operating condition adjustment component, as well as the electrode emitting end and electrode collecting end of the detection component, to meet the position requirements of multi-operating condition simulation test.
[0011] Furthermore, a drive motor is provided between the connector and the clamping plate. The fixed end of the drive motor is connected to the connector, and the output end of the drive motor is connected to the clamping plate.
[0012] The drive motor is a forward and reverse speed-regulating motor used to control the clamping plate to perform the clamping work. After the evaporator is clamped and positioned, the drive motor remains locked to keep the clamping position and clamping force of the clamping plate constant.
[0013] Furthermore, the vibration assembly includes a base plate and several transmission rods. The base plate is located at the bottom of the evaporator. Elastic elements are provided at the four corners of the bottom of the base plate. Several transmission rods are provided at the bottom of the base plate. The transmission rods are arranged at equal intervals. Each transmission rod has a cam on its body. A rotating motor is provided on one side of the transmission rod. The top of the base plate is connected to the bottom of the extension.
[0014] The vibration assembly is used to simulate the vibration of a vehicle body during normal driving, and to detect the changes in frost and moisture on the evaporator surface under the influence of vibration. The base plate is located at the bottom of the evaporator, and the bottom end of the extension is connected to the upper surface of the base plate. The elastic element provides elastic potential energy, enabling the base plate to reciprocate. Multiple transmission rods are provided and located at the bottom of the base plate. Cams are arranged at equal intervals and crosses on the transmission rods. The fixed end of the rotating motor is connected to the chamber of the sealing assembly, and the output end of the rotating motor is connected to the transmission rods. The rotating motor controls the rotation of the transmission rods. The rotation of the transmission rods drives the cams to rotate, and the rotation of the cams generates a thrust at the bottom end of the base plate, causing the base plate to reciprocate up and down to achieve vibration. The vibration of the base plate drives the extension to vibrate, thereby causing the clamping plate to vibrate at the same frequency as the base plate.
[0015] Furthermore, the detection component includes an electrode emitting end and an electrode acquiring end, which are respectively arranged on a clamping plate. There are several electrode acquiring ends, which are arranged at equal intervals.
[0016] The detection component is used to accurately detect frost and moisture evaporation on the evaporator surface. It consists of an electrode transmitter and an electrode receiver, which work together to form a detection loop, enabling synchronous monitoring of the evaporation state in different areas of the evaporator. The electrode transmitter continuously emits a constant-intensity detection signal onto the evaporator surface. This signal must be conducted through the medium on the evaporator surface before being received by the corresponding electrode receiver. Since there are significant differences in conductivity between frost, liquid water, and the dry surface of the evaporator, and the thickness of the frost and the content of liquid water directly affect the conduction efficiency of the electrical signal: when a certain area of the evaporator surface has a thicker frost or a higher moisture content, the conductivity of that area is higher, the electrical signal conduction loss is lower, and the electrical signal strength received by the corresponding electrode receiver is stronger; when the frost melts and evaporates or the moisture gradually evaporates in that area, the conductivity decreases, the electrical signal conduction loss increases, and the electrical signal strength received by the electrode receiver decreases accordingly, thus enabling the detection of moisture in a localized area.
[0017] Furthermore, the electrode acquisition end is connected to the rotating motor wire.
[0018] Because the electrode acquisition end is electrically connected to the rotating motor, when the vibration component simulates vibration conditions of different intensities, the electrode acquisition end can detect in real time the changes in the position of moisture and frost on the evaporator surface and the evaporation pattern under vibration. For example, the accumulation of local moisture and the evaporation of frost during vibration will be reflected through changes in electrical signals.
[0019] Furthermore, the sealed component includes a chamber and a sliding door. The chamber is fitted onto the evaporator, and the top of the chamber is equipped with a sliding door. The two ends of the chamber are respectively equipped with an air inlet and an air outlet, and the sliding door is slidably connected to the chamber.
[0020] The sealed assembly provides a closed and controllable test environment for multi-condition simulation testing of the evaporator, avoiding interference from external factors such as temperature, humidity, and airflow during the test process. This ensures the testing accuracy of the condition adjustment assembly, vibration assembly, and detection assembly. The chamber and sliding door work together to form an openable and closable sealed test space, balancing the ease of clamping the evaporator with the airtightness of the test environment. The two ends of the chamber have air inlets and outlets, which form an airflow circulation channel. In conjunction with the fan of the condition adjustment assembly, the airflow inside the chamber is directed to simulate the airflow environment during the actual operation of the evaporator. At the same time, the airflow inside the chamber can be replaced through the air inlet and outlet, facilitating the adjustment of airflow parameters for the test conditions.
[0021] Compared with the prior art, the beneficial effects of the present invention are: 1. The infrared thermal imaging unit of this invention can monitor the overall temperature change of the evaporator in real time, indirectly determine the evaporation efficiency of the internal refrigerant, and the induced current generated by the rotating block cutting coil can reflect the airflow speed and distribution. The rotation speed change of the rotating block moisture-absorbing layer can accurately identify the local ambient humidity and the evaporation of moisture on the evaporator surface. The difference in electrical signal transmission between the electrode emitting end and the collecting end can achieve accurate detection of frost thickness and moisture content in different areas of the evaporator, and can also simultaneously monitor dynamic changes under vibration conditions. Compared with traditional single detection methods, the detection dimensions are more comprehensive.
[0022] 2. This invention, through the cooperation of the heating element, humidification unit and fan of the working condition adjustment component, can flexibly adjust the temperature, humidity and airflow speed and direction of the test environment. The vibration component, with the cooperation of cam and elastic element, simulates vehicle vibration of different intensities, which can fully restore the complex working environment of the evaporator in actual use. It solves the problem of the single working condition of traditional test equipment and its disconnect from actual application, making the test results more valuable.
[0023] 3. The sealed component of this invention forms a closed test space with the sliding door, effectively isolating the interference of external factors such as temperature, humidity and airflow. The air inlet and outlet of the chamber form an airflow circulation channel, which, together with the operating condition adjustment component, realizes directional flow and replacement of airflow, facilitating precise adjustment of airflow parameters. This provides a stable and controllable environment for the testing of each component, avoiding test errors caused by external interference from an environmental perspective, and greatly improving the accuracy and repeatability of test data. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the housing assembly of the present invention; Figure 3 This is a schematic diagram of the structure of the simulation component of the present invention; Figure 4 This is a schematic diagram of the operating condition adjustment component of the present invention; Figure 5 This is a schematic diagram of the structure of the vibration component of the present invention; Figure 6 This is a schematic diagram of the structure of the clamping assembly of the present invention; Figure 7 For the present invention Figure 5 Enlarged view of part A in the middle section; Figure 8 For the present invention Figure 6 Enlarged view of section B in the middle; Figure 9 For the present invention Figure 6 Enlarged schematic diagram of part C in the middle.
[0025] In the diagram: 1. Shell assembly; 11. Clamping assembly; 111. Extension; 112. Connector; 113. Clamping plate; 114. Drive motor; 12. Sealing assembly; 121. Chamber; 122. Sliding door; 2. Simulation assembly; 21. Operating condition adjustment assembly; 211. Fan; 212. Mounting plate; 2121. Port; 213. Heating element; 214. Contact plate; 2141. Cavity; 215. Infrared thermal imaging unit; 216. Rotating block; 217. Moisture-absorbing layer; 218. Coil; 219. Fan blade; 22. Vibration assembly; 221. Base plate; 222. Transmission rod; 223. Elastic element; 224. Cam; 225. Rotating motor; 23. Detection assembly; 231. Electrode emitting end; 232. Electrode acquisition end. Detailed Implementation
[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0027] Example: Figures 1-9 As shown, the present invention provides a technical solution for a multi-condition simulation evaporator moisture testing device, the testing device including a shell assembly 1 and a simulation assembly 2; The housing assembly 1 includes a clamping assembly 11 and a sealing assembly 12, with the clamping assembly 11 located inside the sealing assembly 12; The simulation component 2 includes a working condition adjustment component 21, a vibration component 22, and a detection component 23. The working condition adjustment component 21 has a vibration component 22 at its bottom end, and the working condition adjustment component 21 has a detection component 23 on both sides. The operating condition adjustment component 21 is connected to the sealing component 12, the detection component 23 is located inside the sealing component 12, and the detection component 23 is connected to the clamping component 11. The operating condition adjustment component 21 is used to adjust the temperature and humidity of the test environment and simulate the airflow state.
[0028] The operating condition adjustment component 21 includes several fans 211 and a contact plate 214. The contact plate 214 is located on one side of the evaporator, and the several fans 211 are located on the other side of the evaporator. Several cavities 2141 are opened in the contact plate 214. An infrared thermal imaging unit 215 is provided on the side of the contact plate 214 close to the evaporator. A rotating block 216 is provided in each of the several cavities 2141. A moisture-absorbing layer 217 is alternately provided on the outer wall of the rotating block 216. A coil 218 is provided on the outer sleeve of the rotating block 216. The coil 218 is connected to the inner wall of the cavity 2141. A fan blade 219 is provided on the side of the rotating block 216 close to the evaporator.
[0029] like Figures 1-9As shown, specifically, the moisture testing equipment is used to measure the evaporation of the liquid inside the evaporator and the evaporation of the external frost. The evaporation efficiency of the liquid inside the evaporator affects the working efficiency of the evaporator, while the evaporation efficiency of the external frost affects the cooling and ventilation efficiency of the gas. The housing assembly 1 is used to place and fix the evaporator. The simulation assembly 2 is used to simulate multiple operating conditions of the evaporator inside the housing assembly 1, testing the evaporator's evaporation under different operating conditions. The clamping assembly 11 is used to fix the evaporator. The sealing assembly 12 is used to provide a sealed environment for easy adjustment of operating conditions. The operating condition adjustment assembly 21 is used to adjust the sealed environment. The temperature and humidity within component 12 are regulated. Vibration component 22 simulates vibrations generated during vehicle operation. Component 23 detects the amount of liquid generated during the evaporation process of external frost formation on the evaporator. Fan 211 provides gas flow to simulate normal evaporator operation. Contact plate 214 receives airflow and simultaneously detects evaporator temperature. Infrared thermal imaging unit 215 detects overall evaporator temperature changes. Rotating block 216 is a magnetic component. When refrigerant is introduced into the evaporator, the entire evaporator begins to cool down. The temperature change is detected by infrared thermal imaging unit 215, indirectly determining the refrigerant evaporation efficiency. Then, on the other side of the evaporator... When one fan 211 starts working, the airflow first passes through the evaporator, then flows to the contact plate 214, and finally flows into the cavity 2141 on the contact plate 214. This drives the fan blades 219 inside the cavity 2141 to rotate. The rotation of the fan blades 219 drives the rotating block 216 to rotate. Since the rotating block 216 is inside the coil 218, its own magnetic field cuts the coil 218, generating an induced current. The airflow magnitude is positively correlated with the induced current magnitude, indirectly determining the airflow magnitude. Several cavities 2141 are provided. Based on the different positions of the cavities 2141, the airflow velocity in the corresponding area is determined, facilitating subsequent frost evaporation detection. Finally... Since the number of rotating blocks 216 is the same as the number of cavities 2141, and the outer walls of the rotating blocks 216 are alternately provided with moisture-absorbing layers 217, when the moisture on the evaporator surface evaporates too slowly or is evaporating, the passing gas will be accompanied by humidity. As a result, the moisture-absorbing layer 217 is affected by the moisture, and the weight of the corresponding rotating block 216 will increase, which will lead to a slower rotation speed. As a result, in a local area, there will be a large numerical difference between the rotating blocks 216 with moisture-absorbing layers 217 and the corresponding rotating blocks 216. The gas humidity is positively correlated with the numerical difference. The higher the humidity, the larger the difference. This allows us to judge the humidity of the local area and also makes it easier to judge the evaporation efficiency of the liquid on the evaporator surface.
[0030] The operating condition adjustment component 21 also includes a mounting plate 212, which is located on one side of the fan 211. A heating element 213 is provided on the side of the mounting plate 212 facing the evaporator. The mounting plate 212 has several openings 2121, which are on the same central axis as the adjacent fan 211. Each opening 2121 is equipped with a humidification unit.
[0031] like Figures 5-6 , Figure 9 As shown, specifically, the mounting plate 212 is located on the side of the evaporator away from the contact plate 214. The mounting plate 212 is used to install the fan 211, so that the fan 211 can be arranged at equal intervals. The heating element 213 on the same side as the fan 211 is used to control the temperature in the sealed space. When the fan 211 is not working, the heating element 213 works to regulate the temperature in the sealed assembly 12. When the fan 211 starts working, the heating element 213 works to regulate the airflow temperature output by the fan 211. The humidification unit is used to control the humidity of the flowing gas, which is convenient for multi-condition simulation.
[0032] The clamping assembly 11 includes an extension 111 located on both sides of the evaporator. A plurality of connectors 112 are provided on one side of the extension 111, and a clamping plate 113 is provided on the side of the plurality of connectors 112 close to the evaporator.
[0033] like Figures 3-6 As shown, specifically, the clamping assembly 11 is used to fix the evaporator. The extension 111 is a rigid structural component, symmetrically arranged on both sides of the evaporator. The bottom end of the extension 111 is fixedly connected to the top end of the base plate 221 in the vibration assembly 22, so that the vibration generated by the vibration assembly 22 can be synchronously transmitted to the clamped evaporator. The connecting piece 112 is a transitional structure between the extension 111 and the clamping plate 113, ensuring that the clamping force of the clamping plate 113 on the evaporator is evenly distributed, avoiding excessive local clamping force that could damage the evaporator structure, or insufficient clamping force that could lead to insecure fixation. The clamping plate 113 is made of elastic and wear-resistant material, and its side in contact with the evaporator... The device features anti-slip textures, which on the one hand buffer the clamping force through elastic contact, protecting the outer surface of the evaporator from scratches and compression damage; on the other hand, the anti-slip textures increase the friction between the clamping plate 113 and the evaporator, improving the clamping and fixing effect. Several clamping plates 113 fit against the outer surface of the evaporator, forming a clamping and fixing effect from both sides of the evaporator. With the support of the extension piece 111 and the connecting piece 112, the evaporator is kept vertical and centered, maintaining a preset relative position with the fan 211 and contact plate 214 of the operating condition adjustment component 21, and the electrode emitting end 231 and electrode collecting end 232 of the detection component 23, meeting the position requirements of multi-operating condition simulation testing.
[0034] A drive motor 114 is provided between the connector 112 and the clamping plate 113. The fixed end of the drive motor 114 is connected to the connector 112, and the output end of the drive motor 114 is connected to the clamping plate 113.
[0035] like Figures 3-6As shown, specifically, the drive motor 114 is a forward and reverse speed-regulating motor used to control the clamping plate 113 to perform clamping work. After the evaporator is clamped and positioned, the drive motor 114 remains locked, so that the clamping position and clamping force of the clamping plate 113 remain constant.
[0036] The vibration assembly 22 includes a base plate 221 and several transmission rods 222. The base plate 221 is located at the bottom of the evaporator. Elastic elements 223 are provided at the four corners of the bottom end of the base plate 221. Several transmission rods 222 are provided at the bottom end of the base plate 221. The several transmission rods 222 are arranged at equal intervals. Each transmission rod 222 is provided with a cam 224 on its body. A rotating motor 225 is provided on one side of the transmission rod 222. The top of the base plate 221 is connected to the bottom of the extension 111.
[0037] like Figures 4-7 As shown, specifically, the vibration assembly 22 is used to simulate the vibration of the vehicle body during normal driving, and to detect the changes in frost and moisture on the evaporator surface under the influence of vibration. The base plate 221 is located at the bottom of the evaporator, and the bottom end of the extension 111 is connected to the upper surface of the base plate 221. The elastic element 223 provides elastic potential energy, enabling the base plate 221 to reciprocate. Multiple transmission rods 222 are provided and located at the bottom of the base plate 221. Cams 224 are arranged equidistantly and crosswise on the body of the transmission rods 222. Then, the fixed end of the rotating motor 225 is connected to the chamber 121 of the sealed assembly 12, and the output end of the rotating motor 225 is connected to the transmission rod 222. The rotating motor 225 is used to control the rotation of the transmission rod 222. The rotation of the transmission rod 222 will drive the cam 224 to rotate, and the rotation of the cam 224 will generate a thrust at the bottom end of the base plate 221, causing the base plate 221 to move up and down to achieve vibration. The vibration of the base plate 221 will drive the extension 111 to vibrate, thereby causing the clamping plate 113 to vibrate at the same frequency as the base plate 221.
[0038] The detection component 23 includes an electrode emitting end 231 and an electrode collecting end 232. The electrode emitting end 231 and the electrode collecting end 232 are respectively arranged on the clamping plate 113. There are several electrode collecting ends 232, and the several electrode collecting ends 232 are arranged at equal intervals.
[0039] like Figure 5 , Figure 6As shown, specifically, the detection component 23 is used to accurately detect frost and moisture evaporation on the evaporator surface. The electrode transmitter 231 and the electrode receiver 232 together form a detection loop to achieve synchronous monitoring of the evaporation state in different areas of the evaporator. The electrode transmitter 231 continuously emits a detection electrical signal of constant intensity to the evaporator surface. This electrical signal needs to be conducted through the medium on the evaporator surface before it can be received by the electrode receiver 232 at the corresponding position. Since there are significant differences in conductivity between frost, liquid water and the dry surface of the evaporator, and the thickness of the frost and the content of liquid water directly affect the conduction efficiency of the electrical signal: when the frost is thicker or the moisture content is higher in a certain area of the evaporator surface, the conductivity of that area is higher, the electrical signal conduction loss is smaller, and the electrical signal intensity received by the electrode receiver 232 at the corresponding position is greater; when the frost melts and evaporates or the moisture gradually evaporates in that area, the conductivity decreases, the electrical signal conduction loss increases, and the electrical signal intensity received by the electrode receiver 232 decreases accordingly, thus realizing the detection of moisture in a local area.
[0040] Electrode acquisition end 232 is connected to the rotating motor 225 by wire.
[0041] like Figure 5 , Figure 6 As shown, specifically, since the electrode acquisition end 232 is electrically connected to the rotating motor 225, when the vibration component 22 simulates vibration conditions of different intensities, the electrode acquisition end 232 can detect in real time the changes in the position of moisture and frost on the surface of the evaporator and the evaporation pattern under vibration. For example, the accumulation of local moisture and the evaporation of frost during vibration will be reflected through changes in electrical signals.
[0042] The sealed assembly 12 includes a chamber 121 and a sliding door 122. The chamber 121 is fitted onto the evaporator. The top of the chamber 121 is provided with a sliding door 122. The two ends of the chamber 121 are respectively provided with an air inlet and an air outlet. The sliding door 122 is slidably connected to the chamber 121.
[0043] like Figures 1-3 As shown, specifically, the sealed component 12 provides a closed and controllable test environment for the multi-condition simulation test of the evaporator, avoiding interference from external factors such as temperature, humidity, and airflow during the test process, and ensuring the test accuracy of the condition adjustment component 21, vibration component 22, and detection component 23. The chamber 121 and the sliding door 122 cooperate to form an openable and closable sealed test space, taking into account both the ease of clamping the evaporator and the sealing of the test environment. The two ends of the chamber 121 are respectively opened to the air inlet and the air outlet, forming an airflow circulation channel. In cooperation with the fan 211 of the condition adjustment component 21, the airflow in the chamber 121 is directional, simulating the airflow environment in the actual working process of the evaporator. At the same time, the airflow in the chamber 121 can be replaced through the air inlet and the air outlet, which facilitates the adjustment of the airflow parameters of the test conditions.
[0044] Working principle: The evaporator is placed between the clamping components 11 in the chamber. The drive motor 114 drives the clamping plate 113 to clamp the evaporator to complete the clamping. The sliding door 122 is closed to form a sealed test environment. Then, the operating condition adjustment component 21 adjusts the temperature and humidity through the heating element 213 and humidification unit on the mounting plate 212. The fan 211 blows temperature and humidity regulated airflow to the evaporator. After passing through the evaporator, the airflow enters the cavity 2141 of the contact plate 214, which drives the fan blades 219 and the magnetic rotating block 216 to rotate. The rotating block 216 cuts the coil 218 to generate an induced current. Combined with the change in rotation speed caused by the increased weight of the moisture-absorbing layer 217 on the outer wall of the rotating block 216 due to the adsorption of water vapor, the airflow speed and local humidity are detected. The infrared thermal imaging unit 215 of the contact plate 214 simultaneously detects the evaporator temperature to determine the refrigerant evaporation efficiency. At the same time, the vibration component 22 drives the rotating motor 225 to rotate the evaporator. The transmission rod 222 and cam 224 rotate, cooperating with the elastic element 223 to make the base plate 221 vibrate up and down, and transmit the vibration to the evaporator through the extension 111, simulating the vibration conditions of vehicle driving. The electrode emitting end 231 of the detection component 23 emits an electrical signal to the evaporator, and several equidistantly arranged electrode collecting ends 232 receive the electrical signals conducted through the frost and moisture on the surface of the evaporator. The difference in conductivity is used to determine the thickness of the frost and the moisture content in each area. The electrode collecting ends 232 are electrically connected to the rotating motor 225, which can simultaneously detect the dynamic changes of moisture and frost on the surface of the evaporator under vibration conditions. The detection data of each component is fed back in real time, realizing accurate testing of the moisture evaporation and frost status of the evaporator under multiple conditions of temperature, humidity, airflow and vibration. After the test is completed, the sliding door 122 is opened and the drive motor 114 is controlled to release the clamp 113, and the evaporator can be taken out.
[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A multi-condition simulation evaporator moisture testing device, characterized in that: The test equipment includes a housing assembly (1) and a simulation assembly (2); The housing assembly (1) includes a clamping assembly (11) and a sealing assembly (12), wherein the clamping assembly (11) is located inside the sealing assembly (12); The simulation component (2) includes a working condition adjustment component (21), a vibration component (22) and a detection component (23). The working condition adjustment component (21) is provided with a vibration component (22) at its bottom end, and the working condition adjustment component (21) is provided with a detection component (23) on both sides. The operating condition adjustment component (21) is connected to the sealing component (12), the detection component (23) is located inside the sealing component (12), the detection component (23) is connected to the clamping component (11), and the operating condition adjustment component (21) is used to adjust the temperature and humidity of the test environment and simulate the airflow state. The operating condition adjustment component (21) includes several fans (211) and a contact plate (214). The contact plate (214) is located on one side of the evaporator, and the several fans (211) are located on the other side of the evaporator. Several cavities (2141) are opened in the contact plate (214). An infrared thermal imaging unit (215) is provided on the side of the contact plate (214) close to the evaporator. A rotating block (216) is provided in each of the several cavities (2141). A moisture-absorbing layer (217) is alternately provided on the outer wall of the rotating block (216). A coil (218) is provided on the outer sleeve of the rotating block (216). A fan blade (219) is provided on the side of the rotating block (216) close to the evaporator. The coil (218) is connected to the inner wall of the cavity (2141).
2. The evaporator moisture testing device for multi-condition simulation according to claim 1, characterized in that: The operating condition adjustment component (21) also includes a mounting plate (212), which is located on one side of the fan (211). The mounting plate (212) has a heating element (213) on the side facing the evaporator. The mounting plate (212) has several openings (2121), and several openings (2121) are on the same central axis as the adjacent fan (211). Each opening (2121) is provided with a humidification unit.
3. The evaporator moisture testing device for multi-condition simulation according to claim 1, characterized in that: The clamping assembly (11) includes an extension (111) located on both sides of the evaporator. A plurality of connectors (112) are provided on one side of the extension (111), and a clamping plate (113) is provided on the side of the connectors (112) close to the evaporator.
4. The evaporator moisture testing device for multi-condition simulation according to claim 3, characterized in that: A drive motor (114) is provided between the connector (112) and the clamp (113). The fixed end of the drive motor (114) is connected to the connector (112), and the output end of the drive motor (114) is connected to the clamp (113).
5. The evaporator moisture testing device for multi-condition simulation according to claim 1, characterized in that: The vibration assembly (22) includes a base plate (221) and a plurality of transmission rods (222). The base plate (221) is located at the bottom of the evaporator. Elastic elements (223) are provided at the four corners of the bottom end of the base plate (221). A plurality of transmission rods (222) are provided at the bottom end of the base plate (221). The plurality of transmission rods (222) are arranged at equal intervals. A cam (224) is provided on the rod body of each transmission rod (222). A rotating motor (225) is provided on one side of the transmission rod (222). The top end of the base plate (221) is connected to the bottom end of the extension (111).
6. The evaporator moisture testing device for multi-condition simulation according to claim 1, characterized in that: The detection component (23) includes an electrode emitting end (231) and an electrode collecting end (232). The electrode emitting end (231) and the electrode collecting end (232) are respectively arranged on the clamping plate (113). There are a number of electrode collecting ends (232), and the number of electrode collecting ends (232) are arranged at equal intervals.
7. The evaporator moisture testing device for multi-condition simulation according to claim 6, characterized in that: The electrode acquisition end (232) is connected to the rotating motor (225) by wire.
8. A multi-condition simulation evaporator moisture testing device according to any one of claims 1 to 6, characterized in that: The sealed component (12) includes a chamber (121) and a sliding door (122). The chamber (121) is fitted onto the evaporator. The top of the chamber (121) is provided with a sliding door (122). The two ends of the chamber (121) are respectively provided with an air inlet and an air outlet. The sliding door (122) is slidably connected to the chamber (121).