Dynamometer and dehumidification device thereof
By setting drying, heating and adjustment components on the intake pipe of the dynamometer, combined with the detection and control system, the problem of condensation of the dynamometer in a high humidity environment is solved, extending the service life of the equipment and improving working efficiency .
Patent Information
- Application Number
- CN202420307270.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-19
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-02-19
AI Technical Summary
In the complete vehicle drum test bench in the automotive industry, water vapor will accumulate inside the dynamometer in a high humidity environment, resulting in the formation of condensation, damaging the equipment, and affecting the normal operation and service life of the equipment.
Designing a dehumidification device of a dynamometer, including providing a drying assembly, a first heating assembly and a regulating assembly on the intake pipe, preventing the formation of condensation by drying, heating and regulating the compressed air, and real-time through the detection assembly and controller Monitor and control temperature and humidity to ensure dry and stable internal environment.
Effectively prevent condensation inside the dynamometer, reduce the risk of equipment damage, extend the service life, and reduce downtime caused by repair or replacement of components, and improve work efficiency.
Smart Images
Figure CN222196462U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air dehumidification, in particular to a dehumidification device of a dynamometer and a dynamometer. Background Art
[0002] In the automotive industry, the vehicle drum test bench is a high-value test equipment. In order to meet the test requirements under different environmental conditions, the drum test bench is often equipped with an environmental chamber. When the environmental chamber switches between high and low temperatures, water vapor will continue to accumulate inside the dynamometer. When the air is in a high-humidity state, condensation will form inside the dynamometer, causing damage to the equipment. Utility Model Content
[0003] The utility model aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first purpose of the utility model is to provide a dehumidification device for a dynamometer, which can continuously and stably blow dry and heated compressed air into the dynamometer by setting a drying component, a first heating component and an adjusting component to prevent condensation from forming inside the dynamometer, thereby reducing the risk of damage to the dynamometer and extending its service life.
[0004] The second objective of the present invention is to provide a dynamometer.
[0005] To achieve the above-mentioned purpose, the first aspect of the utility model proposes a dehumidification device for a dynamometer, comprising: a drying component arranged on the dynamometer air intake pipe, configured to dry the compressed air entering the dynamometer; a first heating component arranged on the dynamometer air intake pipe, the first heating component is connected to the drying component, and is configured to heat the dried compressed air; an adjusting component arranged on the dynamometer air intake pipe, the adjusting component is connected to the first heating component, and is configured to adjust the flow rate of the compressed air entering the dynamometer after being heated and dried.
[0006] According to the dehumidification device of the dynamometer of the utility model, a drying component, a first heating component and an adjusting component are sequentially arranged on the air intake pipe of the dynamometer, which are used to dry, heat and adjust the flow rate of the compressed air blown into the dynamometer. Therefore, by arranging the drying component, the first heating component and the adjusting component, the device can continuously and stably blow the dried and heated compressed air into the dynamometer, prevent condensation from forming inside the dynamometer, thereby reducing the risk of damage to the dynamometer and extending the service life.
[0007] In addition, the dehumidification device of the dynamometer according to the utility model may also have the following additional technical features:
[0008] Furthermore, the dehumidification device of the dynamometer mentioned above also includes: a second heating component arranged outside the motor of the dynamometer, configured to heat the motor.
[0009] Specifically, the second heating assembly includes electric heat tracing.
[0010] Furthermore, the dehumidification device of the dynamometer mentioned above also includes: a detection component configured to detect the temperature and humidity inside the motor.
[0011] Furthermore, the dehumidification device of the above-mentioned dynamometer also includes: a controller, which is respectively connected to the detection component, the first heating component and the second heating component, and is configured to receive the temperature and / or humidity inside the motor, and to control the working state of the first heating component and the second heating component.
[0012] Specifically, the detection component is arranged on the power connection terminal of the motor.
[0013] Specifically, the detection component includes at least one of a temperature sensor and a humidity sensor.
[0014] Furthermore, the dehumidification device of the dynamometer mentioned above also includes: a filter component arranged between the first heating component and the drying component, and configured to filter the dried compressed air.
[0015] Specifically, the regulating component includes a solenoid valve, the drying component includes a refrigerated dryer, and the first heating component includes a heater.
[0016] In order to achieve the above-mentioned object, the second aspect of the utility model provides a dynamometer, including the above-mentioned dehumidification device of the dynamometer.
[0017] According to the dynamometer of the utility model, through the dehumidification device of the dynamometer, dry and heated compressed air can be continuously and stably blown into the interior of the dynamometer to prevent condensation from forming inside the dynamometer, thereby reducing the risk of damage to the dynamometer and extending its service life.
[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a block diagram of a dehumidification device for a dynamometer according to some embodiments of the utility model;
[0020] Figure 2 It is a block diagram of a dehumidification device of a dynamometer according to other embodiments of the utility model;
[0021] Figure 3 It is a block diagram of a dynamometer according to some embodiments of the present utility model. DETAILED DESCRIPTION
[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0023] The dehumidification device for a dynamometer and the dynamometer provided in the embodiments of the present utility model will be described below with reference to the accompanying drawings.
[0024] Figure 1 It is a block diagram of a dehumidification device of a dynamometer according to some embodiments of the utility model.
[0025] like Figure 1 As shown, the dehumidification device 10 of the dynamometer of the present application may include: a drying component 11 arranged on the intake pipe 21 of the dynamometer 20, a first heating component 12 arranged on the intake pipe 21 of the dynamometer 20, and an adjusting component 13 arranged on the intake pipe 21 of the dynamometer 20.
[0026] Among them, the drying component 11 is configured to dry the compressed air entering the dynamometer 20; the first heating component 12 is connected to the drying component 11 and is configured to heat the compressed air after drying; the regulating component 13 is connected to the first heating component 12 and is configured to regulate the flow rate of the compressed air entering the dynamometer 20 after heating and drying.
[0027] Specifically, when the dynamometer 20 is working, the motor of the dynamometer 20 is always in operation, and the temperature inside the dynamometer 20 is high. When the dynamometer 20 stops working, the temperature changes, and a certain temperature gradient is formed inside the motor. As the dynamometer is left standing for a longer time, the internal coil of the motor cools down, and the difference between the internal temperature of the motor and the external temperature is stirred, which causes water vapor to condense inside the motor to form condensed water. These condensed waters accumulate inside the motor, which has an adverse effect on the insulation performance and normal operation of the motor, and in severe cases, may even cause the coil of the equipment to burn out.
[0028] In order to reduce the temperature loss inside the motor and stabilize the temperature inside the motor when the dynamometer 20 stops working, dry and high-temperature compressed air is continuously blown into the dynamometer 20. When the temperature outside the dynamometer 20 changes, a slightly positive pressure environment is formed inside the dynamometer 20 to prevent cold air outside the environment from entering the interior and condensing, so as to ensure that the air inside the dynamometer 20 is always kept dry and clean. Specifically, the blown air is dried by the drying component 11 arranged on the air inlet pipe 21 of the blower 20 to reduce the moisture content in the air. Since cold air will produce condensation after entering the dynamometer, causing equipment failure and affecting the normal operation of the equipment, it is necessary to heat the dried air. At this time, the dried air enters the first heating component 12 arranged on the air inlet pipe 21. The first heating component 12 heats the dried air to heat the dried air, for example, the dried air is heated to 40°C. The compressed air flow rate entering the dynamometer 20 is adjusted by adjusting the component 13 to ensure that no outside air flows into the dynamometer 20, and the air inside the dynamometer 20 is dry and clean, thereby avoiding interference with the test results. This can reduce the risk of damage to the dynamometer and extend its service life when the dynamometer is under high-intensity workload, extreme environmental conditions, or long-term use. In addition, since the risk of damage to the dynamometer is reduced, the downtime caused by maintenance or replacement of parts can be reduced, thereby improving the working efficiency of the dynamometer.
[0029] In some embodiments, the regulating component 13 may include a solenoid valve, the drying component 11 may include a freeze dryer, and the first heating component 12 may include a heater. The solenoid valve has the characteristics of simple structure and low price. It is easy to install and maintain compared to the regulating valve, and the response time of the solenoid valve is very fast. The freeze dryer is simple to operate, and the drying speed is faster than the traditional drying method, which can improve production efficiency and reduce production costs. The heater has the characteristics of small size, high heating power, wide application range, long service life and high reliability.
[0030] The dehumidification device of the dynamometer according to the embodiment of the utility model is described in detail below.
[0031] In some embodiments of the present invention, referring to Figure 2 As shown, the dehumidification device 10 of the dynamometer 20 further includes: a second heating component 14 disposed outside the motor of the dynamometer 20 and configured to heat the motor.
[0032] Furthermore, in some embodiments of the present invention, the second heating assembly 14 may include electric heating.
[0033] Specifically, in order to further ensure the temperature stability inside the dynamometer 20, a second heating component 14 can be arranged outside the motor. For example, the second heating component 14 can be electric heating or electric heating insulation layer. Electric heating can provide heat for the motor by converting electrical energy into thermal energy, reduce the temperature difference between the inside and outside of the motor, and avoid the generation of condensed water inside the motor. It can also effectively reduce the temperature loss inside the motor, maintain the temperature inside the motor stable, and avoid frosting on the dynamometer at low temperatures. At high temperatures, the frost will melt into water and flow into the motor along the periphery of the motor casing to achieve the purposes of insulation, anti-freezing and anti-condensation.
[0034] In some embodiments of the present invention, continue to refer to Figure 2 As shown, the dehumidification device 10 of the dynamometer mentioned above may further include: a detection component 16 configured to detect the temperature and humidity inside the motor.
[0035] In some embodiments of the present invention, the detection component 16 is disposed on the power connection terminal of the motor.
[0036] Furthermore, in some embodiments of the present invention, the detection component 16 may include at least one of a temperature sensor and a humidity sensor.
[0037] Specifically, the detection component 16 can be a temperature sensor, or the detection component 16 can be a humidity sensor, or the detection component 16 can be a temperature sensor and a humidity sensor. By setting the detection component 8, at least one of the temperature and humidity inside the motor can be detected in real time, and the data can be transmitted to the controller 15, so that the controller 15 can adjust the working state of the first heating component 12 and the second heating component 14 according to the data to ensure that the temperature and humidity are maintained within an appropriate range to prevent the generation of condensation water and damage to the equipment.
[0038] In some embodiments of the utility model, the dehumidification device 10 of the above-mentioned dynamometer may further include: a controller 15, which is respectively connected to the detection component 16, the first heating component 12 and the second heating component 14, and is configured to receive the temperature and / or humidity inside the motor, and control the working state of the first heating component 12 and the second heating component 14.
[0039] Specifically, when the detection component 16 is a temperature sensor, the temperature inside the motor is detected in real time, and then the working state of the first heating component 12 and the second heating component 14 is controlled according to the temperature inside the motor. For example, when the temperature inside the motor is too low, it means that frosting is likely to occur. At this time, the controller 15 can increase the heating power of the first heating component 12 to increase the temperature of the compressed air entering the motor, thereby increasing the temperature inside the motor to prevent the generation of condensed water; when the heating power of the first heating component 12 reaches the maximum allowable heating power, if the temperature inside the motor is still too low, the controller 15 can also increase the heating power of the second heating component 14 to reduce the temperature loss inside the motor and keep the temperature inside the motor stable. Alternatively, the controller 15 can simultaneously increase the heating power of the first heating component 12 and the second heating component 14 to quickly heat up the inside of the motor, reduce the heating time, and increase the working efficiency. Since the heating power of the second heating component 9 is relatively small, when the temperature is detected to be relatively low, the controller 15 can only increase the heating power of the second heating component 14 and control the first heating component 12 to stop working to reduce energy consumption.
[0040] When it is detected that the temperature is too high, it means that water vapor is likely to appear. At this time, the controller 15 can reduce the heating power of the first heating component 12 to reduce the temperature of the compressed air entering the motor, thereby reducing the temperature inside the motor and preventing the generation of condensed water; when the first heating component 12 and the second heating component 14 are working at the same time, one of the heating components can be controlled to stop working to reduce the temperature inside the motor, or the first heating component 12 and the second heating component 14 can be controlled to stop working to quickly cool down and ensure that the temperature inside the motor is maintained within an appropriate range to prevent damage caused by overheating of the dynamometer.
[0041] When the detection component 16 is a humidity sensor, the detection component 16 detects the humidity inside the motor in real time, and then the controller 15 controls the working state of the first heating component 12 and the second heating component 14 according to the humidity inside the motor. The specific control method is roughly the same as the control strategy of the controller 15 on the first heating component 12 and the second heating component 14 according to the temperature in the above embodiment, and the purpose is to reduce the humidity inside the motor and increase the temperature inside the motor, which will not be repeated here.
[0042] When the detection component 16 includes a temperature sensor and a humidity sensor, the temperature and humidity inside the motor are detected in real time, the dew point temperature is calculated according to the temperature and humidity inside the motor, and then the working state of the first heating component 12 and the second heating component 14 is controlled according to the dew point temperature. The specific control method is roughly the same as the control strategy of the controller 15 on the first heating component 12 and the second heating component 14 according to the temperature in the above embodiment, and the purpose is to reduce the humidity inside the motor and increase the temperature inside the motor, which will not be repeated here.
[0043] In some embodiments of the present invention, continue to refer to Figure 2 As mentioned above, the dehumidification device 10 of the dynamometer may further include: a filter component 17 disposed between the first heating component 12 and the drying component 11, configured to filter the dried air.
[0044] Specifically, by setting the filter assembly 17, the dried air can be filtered, for example, by using a high-precision filter element for further dehumidification, so as to improve the heating efficiency of the subsequent first heating assembly 11 and reduce the humidity of the compressed air. Among them, the high-precision filter element has the characteristics of high filtering efficiency, long service life, high air permeability, etc., which can reduce maintenance costs and use costs.
[0045] The equipment of the drum test bench with high and low temperature environmental chamber is expensive. Taking the 72-inch drum used in commercial vehicles as an example, the investment amount of the environmental chamber plus the drum exceeds RMB 20 million. According to a survey of domestic OEMs and testing institutions in 2023, at least 3 drum dynamometers were burned out due to condensation water problems. The maintenance cycle exceeded 6 months, and the maintenance cost alone exceeded RMB 600,000. Once the drum fails, it will be a major economic loss for the company. After the implementation of this utility model patent solution, it can effectively avoid the appearance of condensation water in the drum motor and effectively avoid the risk of motor loss.
[0046] Therefore, the present application can solve the problem that during the test of the dynamometer, due to temperature changes, a certain temperature gradient will be formed inside the motor. The temperature inside the motor is quite different from the external ambient temperature, which causes water vapor to condense inside the motor to form condensed water. This condensed water will accumulate inside the motor, causing adverse effects on the insulation performance and normal operation of the motor, and in severe cases even causing the equipment coil to burn out.
[0047] In summary, according to the dehumidification device of the dynamometer of the utility model, a drying component, a first heating component and an adjusting component are sequentially arranged on the air intake pipe of the dynamometer, which are used to dry, heat and adjust the flow rate of the compressed air blown into the dynamometer. Therefore, by arranging the drying component, the first heating component and the adjusting component, the device can continuously and stably blow the dried and heated compressed air into the dynamometer, prevent condensation from forming inside the dynamometer, thereby reducing the risk of damage to the dynamometer and extending its service life.
[0048] Corresponding to the above embodiment, the utility model also proposes a dynamometer.
[0049] like Figure 3 As shown, the dynamometer 20 of the embodiment of the utility model includes the above-mentioned dehumidification device 10 of the dynamometer.
[0050] According to the dynamometer of the embodiment of the utility model, through the dehumidification device of the dynamometer, dry and heated compressed air can be continuously and stably blown into the interior of the dynamometer to prevent condensation from forming inside the dynamometer, thereby reducing the risk of damage to the dynamometer and extending its service life.
[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0053] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0054] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A dehumidification device for a dynamometer, characterized in that: include: A drying assembly disposed on the dynamometer air intake pipe, configured to dry the compressed air entering the dynamometer; A first heating component is disposed on the dynamometer air intake pipe, the first heating component is connected to the drying component and is configured to heat the dried compressed air; The regulating component is arranged on the air intake pipe of the dynamometer, and the regulating component is connected to the first heating component, and is configured to regulate the flow rate of the compressed air entering the dynamometer after being heated and dried.
2. The dehumidification device according to claim 1, characterized in that: Also includes: The second heating assembly disposed outside the motor of the dynamometer is configured to heat the motor.
3. The dehumidification device according to claim 2, characterized in that: The second heating assembly includes electric heat tracing.
4. The dehumidification device according to claim 2, characterized in that: Also includes: The detection component is configured to detect the temperature and humidity inside the motor.
5. The dehumidification device according to claim 4, characterized in that: Also includes: A controller is connected to the detection component, the first heating component and the second heating component respectively, and is configured to receive the temperature and / or humidity inside the motor and control the working status of the first heating component and the second heating component.
6. The dehumidification device according to claim 4, characterized in that: The detection component is arranged on the power connection terminal of the motor.
7. The dehumidification device according to claim 4, characterized in that: The detection component includes at least one of a temperature sensor and a humidity sensor.
8. The dehumidification device according to claim 1, characterized in that: Also includes: The filter assembly disposed between the first heating assembly and the drying assembly is configured to filter the dried compressed air.
9. The dehumidification device according to any one of claims 1 to 8, characterized in that: The regulating component includes a solenoid valve, the drying component includes a refrigerated dryer, and the first heating component includes a heater.
10. A dynamometer, characterized in that: A dehumidification device comprising a dynamometer as claimed in any one of claims 1 to 9.