A long-time pressure maintaining detection device for small motor
By using an infrared thermal imager and a pressure sensor in conjunction with a vacuum pump detection device, the problem of insufficient accuracy in traditional detection methods has been solved, enabling rapid and accurate detection of the pressure holding performance of small motors and improving detection efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JUNCH IND DEV CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional methods for testing the pressure holding performance of small motors rely on pressure gauges and manual observation, which have limited accuracy and make it difficult to accurately test the long-term pressure holding performance of high-performance, high-precision small motors. Furthermore, manual observation is easily affected by subjective factors, leading to large errors in the test results.
An infrared thermal imager and pressure sensor are used in conjunction with a vacuum pump to monitor the temperature and pressure changes in the sealed area of the small motor housing in real time. An electric push rod is used to create a sealed space to simulate a pressure-holding environment, and the detection results are displayed on a controller and a display screen.
This technology enables rapid and accurate testing of the pressure holding performance of small motors, reduces errors, improves testing efficiency and accuracy, and ensures the stability and reliability of test results.
Smart Images
Figure CN224354024U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical engineering technology, and more specifically, to a device for detecting long-term pressure holding of a small motor. Background Technology
[0002] With the continuous improvement of industrial automation, small motors, as key power sources for many mechanical devices, have been widely used in numerous fields such as automobile manufacturing, electronic information, smart homes, and aerospace. Different industries have increasingly stringent requirements for the performance and quality of small motors, especially in scenarios with extremely high standards for sealing and pressure holding performance, such as precision instruments in the aerospace field and braking systems in the automotive industry. The long-term pressure holding capability of small motors directly affects the operational stability and safety of the entire equipment. However, traditional small motor pressure holding testing devices still have the following shortcomings:
[0003] Traditional pressure holding tests mostly rely on simple pressure gauge monitoring and manual observation. Pressure gauges have limited accuracy, making it difficult to precisely capture the minute pressure changes of small motors during prolonged pressure holding. This is especially problematic for high-performance, high-precision small motors, where this method fails to meet their testing requirements. Furthermore, manual observation is susceptible to subjective influences, leading to significant errors in the test results and making it impossible to accurately determine whether the pressure holding performance of the small motor is up to standard. Therefore, a long-term pressure holding test device for small motors is proposed. Utility Model Content
[0004] The purpose of this invention is to address the problem that most existing traditional pressure holding testing methods rely on simple pressure gauge monitoring and manual observation. Pressure gauges have limited accuracy, making it difficult to accurately capture minute pressure changes in small motors during long-term pressure holding. This is especially problematic for high-performance, high-precision small motors, where this testing method fails to meet their testing requirements. Furthermore, manual observation is easily influenced by subjective factors, leading to significant errors in the test results and making it impossible to accurately determine whether the pressure holding performance of the small motor is up to standard. Therefore, this invention provides a long-term pressure holding testing device for small motors to solve the problems mentioned in the background.
[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:
[0006] The present invention is as follows: a long-term pressure holding detection device for a small motor, comprising a base, a detection component for pressure holding detection of the small motor being provided on the top of the base, and a fixing component for fixing the small motor being provided on the top of the base;
[0007] The detection assembly includes a fixed frame fixedly connected to the top of the base. An electric push rod is provided on the inner top wall of the fixed frame. A protective cover is provided at the output end of the electric push rod. A sealing ring is provided at the bottom of the protective cover. An infrared thermal imager is provided on the inner wall of the protective cover. A pressure sensor is provided on the inner wall of the protective cover. A vacuum pump is provided on one side of the base. A hose is provided at the output end of the vacuum pump. The end of the hose away from the vacuum pump extends into the interior of the protective cover. A controller is provided on the top of the fixed frame. A display screen is provided on one side of the base.
[0008] As a preferred technical solution of this utility model, the fixing component includes a fixing frame fixedly connected to the top of the base, threaded rods are threadedly connected to both sides of the fixing frame, and a fixing plate is rotatably connected to one side of each of the two threaded rods. A placement frame is fixedly connected to the top of the base, and a U-shaped soft pad is provided on the top of the placement frame.
[0009] As a preferred technical solution of this utility model, the top of the fixed frame has two stabilizing holes, and the top of the protective cover is fixedly connected to two vertical stabilizing columns. The stabilizing holes are used in conjunction with the stabilizing columns for sliding connection.
[0010] As a preferred technical solution of this utility model, a pressure relief pipe is fixedly connected to one side of the protective cover, and a pressure relief valve is rotatably connected to the inner wall of the pressure relief pipe.
[0011] As a preferred technical solution of this utility model, anti-slip pads are provided on the opposite sides of the two fixed plates, and multiple anti-slip grooves are provided on the opposite sides of the two anti-slip pads.
[0012] As a preferred technical solution of this utility model, the inner wall of the base is fixedly connected to two horizontal partitions, and a door is hinged to one side of the base.
[0013] As a preferred technical solution of this utility model, a humidity sensor is provided on the inner wall of the protective cover, and the humidity sensor is electrically connected to the controller and the display screen.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. Through the set detection components, the effect of rapid pressure holding detection of small motors is realized. The protective cover is driven to press down by the electric push rod, so that the sealing ring contacts the base to form a sealed space. The vacuum pump extracts the air inside the protective cover through the hose to simulate the pressure holding environment. The infrared thermal imager and pressure sensor work together to monitor the temperature change of the sealing area of the small motor shell in real time to quickly locate the leakage location and the pressure inside the protective cover. The information is transmitted to the controller, which integrates the information and transmits it to the display screen for display, which greatly improves the efficiency of pressure holding detection of small motors.
[0016] 2. The fixed components enable stable clamping and fixing of small motors of different sizes. The combination of the placement rack and the U-shaped soft pad reduces hard contact between the small motor and the placement rack, preventing damage to the small motor during fixing and testing. The combination of the threaded rod and the fixing plate provides stable fixing of small motors of different sizes, not only protecting the surface of the small motor from damage, but also enhancing the fixing effect and ensuring the stability of the small motor during testing. Attached Figure Description
[0017] Figure 1 A schematic diagram of a long-term pressure holding detection device for a small motor provided by this utility model;
[0018] Figure 2 One of the left-side cross-sectional structural schematic diagrams of a small motor long-term pressure holding detection device provided by this utility model;
[0019] Figure 3 A front cross-sectional view of a small motor long-term pressure holding detection device provided by this utility model;
[0020] Figure 4 A second schematic diagram of the left-side cross-sectional structure of a small motor long-term pressure holding detection device provided by this utility model;
[0021] Figure 5 This is a schematic diagram of the structure of the stabilizing hole and stabilizing column in a long-term pressure holding test device for a small motor provided by this utility model.
[0022] The diagram shows: 1. Base; 2. Detection component; 3. Fixing component; 201. Fixing frame; 202. Electric push rod; 203. Protective cover; 204. Sealing ring; 205. Infrared thermal imager; 206. Pressure sensor; 207. Vacuum pump; 208. Hoses; 209. Controller; 210. Display screen; 301. Fixing bracket; 302. Threaded rod; 303. Fixing plate; 304. Placement rack; 305. U-shaped soft pad; 4. Stabilizing hole; 5. Stabilizing column; 6. Pressure relief pipe; 7. Pressure relief valve; 8. Anti-slip pad; 9. Anti-slip groove; 10. Partition; 11. Box door; 12. Humidity sensor. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.
[0024] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0027] like Figure 1 As shown, this embodiment proposes a long-term pressure holding test device for a small motor, including a base 1, a test component 2 for performing pressure holding test on the top of the base 1, and a fixing component 3 for fixing the small motor on the top of the base 1.
[0028] like Figure 2 and Figure 3As shown, the detection component 2 includes a fixed frame 201 fixedly connected to the top of the base 1. An electric push rod 202 is installed on the inner top wall of the fixed frame 201. The electric push rod 202 is vertical with its output end facing downwards. A protective cover 203 is installed at the output end of the electric push rod 202. The protective cover 203 has an opening at its bottom, and a sealing ring 204 is installed around the bottom opening of the protective cover 203. The electric push rod 202 drives the protective cover 203 to move up and down. The sealing ring 204 at the bottom of the protective cover 203 contacts the base 1 to form a sealed space, completely enclosing the small motor inside the protective cover 203. An infrared thermal imager 205 and a pressure sensor 206 are installed on the inner wall of the protective cover 203. The infrared thermal imager 205 and the pressure sensor 206 are used to detect the movement of the motor. Force sensor 206 detects pressure changes inside protective cover 203 and temperature changes in the sealed area of small motor housing in real time; vacuum pump 207 is provided on one side of base 1, and hose 208 is provided at the output end of vacuum pump 207. The end of hose 208 away from vacuum pump 207 extends into the interior of protective cover 203, and vacuum pump 207 extracts air from inside protective cover 203 through hose 208; controller 209 is provided on the top of fixed frame 201, and display screen 210 is provided on one side of base 1. Display screen 210 displays temperature changes in the sealed area of small motor housing and pressure changes inside protective cover 203 in real time; infrared thermal imager 205, pressure sensor 206 and display screen 210 are all electrically connected to controller 209. The small motor to be tested is placed on the base 1. Then, the electric push rod 202 is activated, which pushes the protective cover 203 downward, so that the protective cover 203 covers the small motor. The sealing ring 204 at the bottom of the protective cover 203 contacts the base 1 to form a sealed space. The vacuum pump 207 is activated, and the vacuum pump 207 extracts the air from the protective cover 203 through the hose 208, so that the inside of the protective cover 203 forms a negative pressure environment similar to that inside the small motor. The infrared thermal imager 205 monitors the temperature change of the sealed area of the small motor housing in real time during the pressure holding process. When a leak occurs in the sealed area of the small motor housing, external air will enter the small motor, causing the temperature around the leak location to change. 5. The location of temperature change is captured and sent to the controller 209. The controller 209 integrates the received image information and then sends the integrated image information to the display screen 210 to observe the location of leakage in the sealing area of the small motor housing, thereby quickly determining the leakage location. The pressure sensor 206 monitors the pressure change inside the protective cover 203 and transmits the data to the controller 209. The controller 209 displays the data on the display screen 210 to ensure that the pressure inside the protective cover 203 is consistent with the pressure inside the small motor. This not only enables rapid detection of the sealing area of the small motor housing but also significantly improves the efficiency of pressure holding detection of the small motor.
[0029] like Figure 4 As shown, the fixing component 3 includes a fixing frame 301 fixedly connected to the top of the base 1. Threaded rods 302 are threadedly connected to both opposite sides of the fixing frame 301. Fixing plates 303 are rotatably connected to one side of each of the two threaded rods 302. A placement frame 304 is fixedly connected to the top of the base 1. The space between the two fixing plates 303 is used to accommodate a small motor. The placement frame 304 is also located in this space. A U-shaped soft pad 305 is provided on the top of the placement frame 304. By rotating the threaded rods 302 on both sides of the fixing frame 301, the threaded rods 302 drive the fixing plates 303 to move, thereby stably clamping and fixing the small motor. The small motor to be tested is placed on the placement rack 304. The U-shaped soft pad 305 reduces the hard contact between the small motor and the placement rack 304, preventing scratches or deformation of the small motor casing during subsequent testing. Then, the threaded rods 302 on both sides of the fixing rack 301 are rotated. The threaded rods 302 drive the fixing plate 303 to move towards the small motor. The fixing plate 303 clamps and fixes small motors of different sizes, ensuring the stability of the small motor during testing.
[0030] like Figure 4 and Figure 5 As shown, two stabilizing holes 4 are formed through the top of the fixed frame 201, and two vertical stabilizing columns 5 are fixedly connected to the top of the protective cover 203. The stabilizing holes 4 are used in conjunction with the stabilizing columns 5 for sliding connection. When the electric push rod 202 pushes the protective cover 203 to move up and down, the stabilizing columns 5 on the top of the protective cover 203 slide within the stabilizing holes 4, guiding and stabilizing the movement of the protective cover 203, preventing the protective cover 203 from shifting during movement, ensuring the stability of the protective cover 203 during up and down movement, and enabling the protective cover 203 to accurately form a seal with the base 1, improving the sealing and accuracy of the testing environment.
[0031] like Figure 5 As shown, a pressure relief pipe 6 is fixedly connected to one side of the protective cover 203, and a pressure relief valve 7 is rotatably connected to the inner wall of the pressure relief pipe 6. When the test is completed or the negative pressure inside the protective cover 203 is too high, the pressure relief valve 7 inside the pressure relief pipe 6 is rotated to allow outside air to enter the protective cover 203 through the pressure relief pipe 6, thereby balancing the pressure inside and outside the protective cover 203. This facilitates opening the protective cover 203 to remove the small motor and adjusting the pressure inside the protective cover 203, significantly improving the testing efficiency of the small motor.
[0032] like Figure 5 As shown, anti-slip pads 8 are provided on the opposite sides of the two fixing plates 303, and multiple anti-slip grooves 9 are formed on the opposite sides of the two anti-slip pads 8. When the fixing plates 303 are pushed to clamp the small motor, the anti-slip pads 8 and anti-slip grooves 9 come into contact with the surface of the small motor, increasing the friction between the fixing plates 303 and the small motor, preventing the small motor from sliding due to vibration or other reasons during the testing process, and enhancing the fixing effect on the small motor.
[0033] like Figure 3 As shown, two horizontal partitions 10 are fixedly connected to the inner wall of the base 1, and a door 11 is hinged to one side of the base 1. The partitions 10 inside the base 1 divide the internal space of the base 1 into multiple independent areas, which can be classified and stored according to the type and size of the testing tools, greatly improving the space utilization rate inside the base 1. At the same time, the door 11 plays a protective and sealing role, preventing dust and other objects from entering the interior of the base 1.
[0034] like Figure 3 As shown, a humidity sensor 12 is installed on the inner wall of the protective cover 203. The humidity sensor 12 is electrically connected to the controller 209 and the display screen 210. The humidity sensor 12 monitors the humidity changes inside the protective cover 203 in real time and transmits the data to the controller 209. The controller 209 integrates the humidity information inside the protective cover 203 and transmits it to the display screen 210 for display, avoiding the impact of excessively high or low humidity on the detection results of the small motor and ensuring the stability of the detection environment and the accuracy of the detection results.
[0035] Specifically, when using this long-term pressure-holding testing device for small motors: place the small motor to be tested on the placement rack 304. The U-shaped soft pad 305 reduces hard contact between the small motor and the placement rack 304, preventing scratches or deformation of the motor casing during subsequent testing. Then, rotate the threaded rods 302 on both sides of the fixing rack 301. The threaded rods 302 drive the fixing plate 303 to move towards the small motor, clamping and fixing small motors of different sizes (e.g., ...) through the fixing plate 303. Figure 4 (As shown); then, the electric push rod 202 is activated, which pushes the protective cover 203 downward, so that the protective cover 203 covers the small motor. The sealing ring 204 at the bottom of the protective cover 203 contacts the base 1 to form a sealed space. The vacuum pump 207 is activated, and the vacuum pump 207 extracts the air from the protective cover 203 through the hose 208, so that the inside of the protective cover 203 forms a negative pressure environment similar to that of the small motor. The infrared thermal imager 205 monitors the temperature change of the sealing area of the small motor housing in real time during the pressure holding process. When a leak occurs in the sealing area of the small motor housing, external air will enter the small motor, causing the area around the leak location to... When the temperature changes, the infrared thermal imager 205 captures the location of the temperature change and sends this information to the controller 209. The controller 209 integrates the received image information and then sends the processed image information to the display screen 210 to observe the location of a leak in the sealed area of the small motor housing, thus quickly determining the leak location. The pressure sensor 206 monitors the pressure change inside the protective cover 203 and transmits the data to the controller 209. The controller 209 displays the data on the display screen 210 to ensure that the pressure inside the protective cover 203 is consistent with the pressure inside the small motor (e.g., ...). Figure 2 and Figure 3 (As shown in the figure) It can not only quickly detect the sealed area of the small motor housing, but also greatly improve the efficiency of pressure holding test of small motor.
[0036] All technical features in this embodiment can be freely combined according to actual needs.
[0037] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. A long-term pressure holding detection device for a small motor, comprising a base (1), characterized in that, The top of the base (1) is provided with a detection component (2) for pressure testing of the small motor, and the top of the base (1) is provided with a fixing component (3) for fixing the small motor. The detection component (2) includes a fixed frame (201) fixedly connected to the top of the base (1). An electric push rod (202) is provided on the inner top wall of the fixed frame (201). A protective cover (203) is provided at the output end of the electric push rod (202). A sealing ring (204) is provided at the bottom of the protective cover (203). An infrared thermal imager (205) is provided on the inner wall of the protective cover (203). A pressure sensor (206) is provided on the inner wall of the protective cover (203). A vacuum pump (207) is provided on one side of the base (1). A hose (208) is provided at the output end of the vacuum pump (207). The end of the hose (208) away from the vacuum pump (207) extends into the interior of the protective cover (203). A controller (209) is provided on the top of the fixed frame (201). A display screen (210) is provided on one side of the base (1).
2. The long-term pressure holding detection device for a small motor according to claim 1, characterized in that, The fixing component (3) includes a fixing frame (301) fixedly connected to the top of the base (1). Threaded rods (302) are threadedly connected to both sides of the fixing frame (301). Fixing plates (303) are rotatably connected to one side of each of the two threaded rods (302). A placement rack (304) is fixedly connected to the top of the base (1). A U-shaped soft pad (305) is provided on the top of the placement rack (304).
3. The long-term pressure holding detection device for a small motor according to claim 1, characterized in that, The top of the fixed frame (201) has two stabilizing holes (4) through it, and the top of the protective cover (203) is fixedly connected to two vertical stabilizing columns (5). The stabilizing holes (4) are used in conjunction with the stabilizing columns (5) for sliding connection.
4. The long-term pressure holding detection device for a small motor according to claim 1, characterized in that, A pressure relief pipe (6) is fixedly connected to one side of the protective cover (203), and a pressure relief valve (7) is rotatably connected to the inner wall of the pressure relief pipe (6).
5. The long-term pressure holding detection device for a small motor according to claim 2, characterized in that, Anti-slip pads (8) are provided on the opposite side of the two fixed plates (303), and multiple anti-slip grooves (9) are provided on the opposite side of the two anti-slip pads (8).
6. The long-term pressure holding detection device for a small motor according to claim 1, characterized in that, The inner wall of the base (1) is fixedly connected to two horizontal partitions (10), and a door (11) is hinged to one side of the base (1).
7. The long-term pressure holding detection device for a small motor according to claim 1, characterized in that, A humidity sensor (12) is installed on the inner wall of the protective cover (203). The humidity sensor (12) is electrically connected to the controller (209) and the display screen (210).