Vehicle-mounted inverter with high-temperature monitoring and self-alarming functions and monitoring method of vehicle-mounted inverter

Abstract

The invention discloses a high-temperature monitoring self-alarm vehicle-mounted inverter and a monitoring method thereof, and relates to the technical field of temperature sensing, the high-temperature monitoring self-alarm vehicle-mounted inverter comprises a frame body, the surface of the frame body is provided with a vent groove, the frame body is internally provided with an external expansion mechanism for preventing the inverter from vibrating in a vehicle, and the external expansion mechanism is internally provided with an external expansion mechanism for preventing the inverter from vibrating in the vehicle. A cleaning mechanism for cleaning impurities in a vent groove in the surface of the frame body is arranged in the frame body, the frame body and an external expansion mechanism are used in cooperation, an external pushing plate is pushed to slide downwards, and the frame body is fixed in an armrest box in the vehicle, so that the problem that a sensor or a monitoring device is interfered due to vehicle vibration is solved; the vibration of the inverter in the armrest box is avoided, the abrasion and damage of internal elements of the inverter can be reduced, and the service life of the inverter is prolonged, so that the high-temperature monitoring self-alarm of the inverter is prevented from being influenced by the looseness of electronic elements, the breakage of welding spots or the falling of a connector caused by the vibration.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature sensing, and particularly to a vehicle-mounted inverter with high-temperature monitoring and self-alarm and its monitoring method. Background Art

[0002] A vehicle-mounted inverter is a device that converts the DC power supply of a vehicle into an AC power supply. Using an inverter on a vehicle can convert the vehicle's 12V or 24V DC power supply into 110V or 220V AC power supply for use by electric tools, household appliances, electronic devices, etc. The vehicle-mounted inverter can usually be powered through the cigarette lighter socket of the vehicle or directly connected to the vehicle's battery, providing convenient power support for users. The vehicle-mounted inverter is usually equipped with a high-temperature protection function, which can monitor the operating temperature of the inverter. When the temperature is too high, the inverter will automatically alarm or cut off the power to protect the inverter from damage. When the vehicle-mounted inverter detects an abnormal rise in the internal temperature, it will automatically trigger an alarm mechanism, such as by means of a sound alarm, a warning light, etc., to remind the user. This can attract the user's attention in time and avoid misoperation or delay in troubleshooting.

[0003] During the current use of the device, there are still many inconveniences;

[0004] The specific defects are as follows:

[0005] Firstly, the vehicle will experience vibrations and bumps during driving, especially on rough road conditions, such as bumpy mountain roads, potholed roads, etc. These vibrations and bumps will affect the inverter, causing it to loosen or shake. The vehicle vibrations will cause the sensors or monitoring devices to be interfered, resulting in false alarms or missed alarms. The vibrations during vehicle driving will trigger the high-temperature monitoring and self-alarm function, resulting in false alarms of overheating of the device, or the vibrations cause the monitoring device to malfunction and thus unable to send alarm signals in time. And the vehicle vibrations will cause the devices in the armrest box in the vehicle to move, collide or vibrate, thus increasing the risk of device damage. The device damage causes the high-temperature monitoring and self-alarm function to malfunction, reducing the reliability and service life of the inverter.

[0006] Secondly, the inverter realizes heat dissipation through ventilation slots, and cools the internal components through the outside air. However, the ventilation slots are prone to accumulate impurities such as dust, mud, and oil stains. These impurities will block the ventilation holes, reduce air circulation, and cause poor heat dissipation of the inverter. When the inverter cannot dissipate heat in time, the internal temperature will rise rapidly, thus affecting the normal operation and life of the inverter. The function of the ventilation slots is to discharge the heat from the inverter. In the case of blocked air flow, the operating temperature of the inverter will increase, and the high temperature will affect the normal operation of the inverter and even cause the inverter to burn out.

[0007] Therefore, the present invention provides a vehicle-mounted inverter with high-temperature monitoring and self-alarm function and its monitoring method to make up for and improve the deficiencies of the prior art. Summary of the Invention

[0008] (1) Technical Problems to be Solved

[0009] In view of the deficiencies of the prior art, the present invention provides a vehicle-mounted inverter with high-temperature monitoring and self-alarm function and its monitoring method, which solves the problems that vehicle vibration may cause interference to sensors or monitoring devices and the ventilation slots of the inverter are easily affected by external impurities and blocked as mentioned in the above background art.

[0010] (2) Technical Solutions

[0011] To achieve the above objectives, the present invention is realized through the following technical solutions: A vehicle-mounted inverter with high-temperature monitoring and self-alarm function includes a frame body. Ventilation slots are provided on the surface of the frame body. An outward expansion mechanism for preventing the inverter from vibrating in the vehicle is provided inside the frame body, and a cleaning mechanism for cleaning impurities inside the ventilation slots on the surface of the frame body is provided inside the frame body.

[0012] The outward expansion mechanism includes a fixed push plate that fits with the central armrest box in the vehicle.

[0013] The cleaning mechanism includes a power shaft plate that provides power for the cleaning mechanism.

[0014] Preferably, the outward expansion mechanism includes an outer push plate. The outer push plate is slidably connected to the surface of the frame body. A connecting cross plate is slidably connected inside the frame body. The connecting cross plate is fixedly connected to the outer push plate. A vertical connecting shaft is fixedly connected to the lower surface of the connecting cross plate. A central sliding frame is slidably connected inside the frame body. The central sliding frame is fixedly connected to the vertical connecting shaft. A side cross plate is fixedly connected to the surface of the central sliding frame. A first middle rod is rotatably connected to the surface of the side cross plate. A second middle rod is slidably connected inside the first middle rod. A central spring is fixedly connected inside the first middle rod. The central spring is fixedly connected to the second middle rod. The fixed push plate is slidably connected inside the frame body. An outer plate is fixedly connected to the inner wall of the fixed push plate. One end of the second middle rod away from the central sliding frame is rotatably connected to the surface of the outer plate. A bottom limiting shaft is fixedly connected to the lower surface of the outer plate. The bottom limiting shaft is slidably connected inside the frame body.

[0015] Preferably, four side cross plates are provided. The four side cross plates are evenly distributed on the surface of the central sliding frame. The first middle rod is symmetrically arranged with respect to the side cross plate.

[0016] Preferably, a rubber gasket is provided on the surface of the fixed push plate away from the central sliding frame.

[0017] Preferably, the cleaning mechanism includes a cleaning plate which is slidably connected inside the ventilation groove on the surface of the frame body. The power shaft plate is slidably connected inside the frame body and fixedly connected to the upper surface of the connecting cross plate. A central plate is slidably connected inside the frame body and fixedly connected to the cleaning plate. A switching groove and a transverse groove are formed inside the frame body. A transverse shaft is fixedly connected to the surface of the central plate and slidably connected inside the transverse groove on the surface of the frame body. A filter plate is slidably connected inside the frame body. Vertical shafts are fixedly connected to both ends of the filter plate and slidably connected inside the switching groove on the surface of the frame body. A return spring is fixedly connected inside the frame body and fixedly connected to the central plate. Secondary push rods are rotatably connected inside both ends of the power shaft plate. A lower side block is fixedly connected to the surface of the filter plate. One end of the secondary push rod away from the return spring is rotatably connected inside the lower side block. A central abutting shaft is fixedly connected inside the frame body. A rotating push rod is rotatably connected to the surface of the central abutting shaft. An adjusting groove is formed on the surface of the rotating push rod, and the transverse shaft is slidably connected inside the adjusting groove.

[0018] Preferably, there are two secondary push rods which are symmetrically arranged with the power shaft plate as the axis of symmetry, and the switching groove inside the frame body is L-shaped.

[0019] Preferably, the length of the filter plate is twice the length of the ventilation groove on the surface of the frame body.

[0020] Preferably, the rotating push rod is located inside the sliding path of the filter plate, and the length of the adjusting groove is half of the length of the transverse groove inside the frame body.

[0021] A monitoring method for a vehicle-mounted inverter with high-temperature monitoring and self-alarm includes the following steps:

[0022] S1. Temperature sensing step: Install temperature sensors at key parts of the inverter to ensure that the connection between the sensors and the inverter is firm and reliable. The temperature sensors can be thermistors or thermocouples, etc.

[0023] S2. Setting temperature threshold step: Set a suitable alarm temperature threshold according to the design specifications and performance requirements of the inverter. This threshold can be determined according to the highest tolerable temperature of the inverter and the operating temperature range of the inverter.

[0024] S3. Alarm signal step: When the temperature inside the inverter is too high, the temperature sensor sends an alarm signal and reminds the vehicle driver through sound, light or other warning devices.

[0025] (III) Beneficial effects

[0026] The vehicle-mounted inverter with high-temperature monitoring and self-alarm and its monitoring method provided by the present invention have the following beneficial effects:

[0027] 1. By using the cooperation of the frame body and the expansion mechanism, the frame body is fixed inside the vehicle armrest box by pushing the outer push plate to slide downward, which solves the problem that vehicle vibration may cause interference to sensors or monitoring devices. Avoiding the vibration of the inverter in the armrest box can reduce the wear and damage of internal components of the inverter, extend its service life, and thus prevent the loosening of electronic components, the cracking of solder joints or the detachment of connectors caused by vibration, which may affect the high-temperature monitoring and self-alarm function of the inverter. Moreover, fixing the inverter in the armrest box can protect the device from the external environment and prevent accidental touch by others or device damage caused by sharp bumps or collisions during driving, thereby extending the service life.

[0028] 2. By using the cooperation of the frame body and the cleaning mechanism, the cleaning plate is driven to be slidably connected inside the ventilation slot, thereby pushing the impurities inside the ventilation slot out of the ventilation slot, which solves the problem that the ventilation slot of the inverter is easily blocked by external impurities. Since the main function of the ventilation slot is heat dissipation, and the accumulation of impurities will hinder air circulation and reduce the heat dissipation efficiency. Through the cleaning method from inside to outside, the impurities inside the ventilation slot can be effectively removed, ensuring smooth air circulation and improving the heat dissipation efficiency, thereby extending the service life of the inverter. Moreover, too many impurities in the ventilation slot will affect the accuracy of the temperature sensor, resulting in the failure of the self-alarm function. The cleaning method from inside to outside can ensure the accuracy of the temperature sensor and enhance the reliability of the self-alarm function.

[0029] 3. By using the cooperation of the expansion mechanism and the cleaning mechanism, whether to clean the ventilation slot of the vehicle-mounted inverter is controlled according to the working state of the inverter. Through the working state of the inverter, the automatic control of cleaning the ventilation slot is realized without manual intervention, reducing the complexity and errors of manual operation. And cleaning the ventilation slot in time can improve the heat dissipation efficiency of the inverter, reduce the working temperature of the inverter, thereby reducing energy loss. In addition, by controlling whether to clean the ventilation slot of the vehicle-mounted inverter according to the working state of the inverter, the cleaning frequency and duration of the ventilation slot can be optimized, further reducing energy consumption and achieving the purpose of energy conservation and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 is a schematic diagram of the internal structure of the present invention;

[0032] Figure 3 is a diagram showing the positional relationship between the outer frame mechanism and the cleaning mechanism of the present invention;

[0033] Figure 4 is a schematic diagram of the overall structure of the outer frame mechanism of the present invention;

[0034] Figure 5 For the present invention Figure 4 Partial enlarged view of A in the present invention;

[0035] Figure 6 Schematic diagram of the overall structure of the cleaning mechanism of the present invention;

[0036] Figure 7 For the present invention Figure 6 Partial enlarged view of B in the present invention;

[0037] Figure 8 Schematic diagram of the internal structure of the cleaning mechanism of the present invention.

[0038] The reference numerals in the figure respectively represent:

[0039] 1. Frame body;

[0040] 2. Outer expansion mechanism; 211. Outer push plate; 212. Fixed push plate; 213. Connecting cross plate; 214. Vertical connecting shaft; 215. Central sliding frame; 216. Side cross plate; 217. First middle rod; 218. Second middle rod; 219. Central spring; 2110. Bottom limit shaft; 2111. Outer side plate;

[0041] 3. Cleaning mechanism; 311. Cleaning plate; 312. Central plate; 313. Cross shaft; 314. Power shaft plate; 315. Secondary push rod; 316. Rotary push rod; 317. Return spring; 318. Adjustment groove; 319. Filter plate; 3110. Vertical shaft; 3111. Central abutting shaft; 3112. Lower side block. Specific embodiments

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] Referring to Figures 1 to 8 , a vehicle-mounted inverter with high-temperature monitoring and self-alarm and its monitoring method according to a preferred embodiment of the present invention will be described in detail below. A vehicle-mounted inverter with high-temperature monitoring and self-alarm includes a frame body 1, a ventilation groove is provided on the surface of the frame body 1, an outer expansion mechanism 2 for preventing the inverter from vibrating in the vehicle is provided inside the frame body 1, and a cleaning mechanism 3 for cleaning the impurities inside the ventilation groove on the surface of the frame body 1 is provided inside the frame body 1;

[0044] The outer expansion mechanism 2 includes a fixed push plate 212 that fits with the central armrest box in the vehicle;

[0045] The cleaning mechanism 3 includes a power shaft plate 314 that provides power for the cleaning mechanism 3.

[0046] The outward expansion mechanism 2 includes an outward pushing plate 211. The outward pushing plate 211 is slidably connected to the surface of the frame body 1. A connecting cross plate 213 is slidably connected inside the frame body 1. The connecting cross plate 213 is fixedly connected to the outward pushing plate 211. A vertical connecting shaft 214 is fixedly connected to the lower surface of the connecting cross plate 213. A central sliding frame 215 is slidably connected inside the frame body 1. The central sliding frame 215 is fixedly connected to the vertical connecting shaft 214. A side cross plate 216 is fixedly connected to the surface of the central sliding frame 215. A first middle rod 217 is rotatably connected to the surface of the side cross plate 216. A second middle rod 218 is slidably connected inside the first middle rod 217. A central spring 219 is fixedly connected inside the first middle rod 217. The central spring 219 is fixedly connected to the second middle rod 218. A fixed pushing plate 212 is slidably connected inside the frame body 1. An outer side plate 2111 is fixedly connected to the inner wall of the fixed pushing plate 212. One end of the second middle rod 218 away from the central sliding frame 215 is rotatably connected to the surface of the outer side plate 2111. A bottom limiting shaft 2110 is fixedly connected to the lower surface of the outer side plate 2111. The bottom limiting shaft 2110 is slidably connected inside the frame body 1. There are four side cross plates 216, and the four side cross plates 216 are evenly distributed on the surface of the central sliding frame 215. The first middle rod 217 is symmetrically arranged with respect to the side cross plate 216. A rubber gasket is arranged on the side of the fixed pushing plate 212 away from the central sliding frame 215.

[0047] The effects achieved by this embodiment are as follows: During the driving process of the vehicle, it will experience vibrations and bumps, especially under harsh road conditions, such as bumpy mountain roads, potholed roads, etc. These vibrations and bumps will affect the inverter, causing it to loosen or shake. The vehicle vibrations will cause interference to the sensors or monitoring devices. By pushing the outward pushing plate 211 to slide downward, the frame body 1 is fixed inside the vehicle armrest box, solving the problem that vehicle vibrations will cause interference to the sensors or monitoring devices. Avoiding the vibration of the inverter in the armrest box can reduce the wear and damage of the internal components of the inverter, extend its service life, and thus avoid the loosening of electronic components, the cracking of solder joints or the detachment of connectors caused by vibrations, which will affect the high-temperature monitoring and self-alarm of the inverter.

[0048] The cleaning mechanism 3 includes a cleaning plate 311, the cleaning plate 311 is slidably connected inside the ventilation groove on the surface of the frame body 1, the power shaft plate 314 is slidably connected inside the frame body 1, the power shaft plate 314 is fixedly connected to the upper surface of the connecting cross plate 213, a center plate 312 is slidably connected inside the frame body 1, the center plate 312 is fixedly connected to the cleaning plate 311, a switching groove and a transverse groove are formed inside the frame body 1, a transverse shaft 313 is fixedly connected to the surface of the center plate 312, the transverse shaft 313 is slidably connected inside the transverse groove on the surface of the frame body 1, a filter plate 319 is slidably connected inside the frame body 1, vertical shafts 3110 are fixedly connected to both ends of the filter plate 319, the vertical shafts 3110 are slidably connected inside the switching groove on the surface of the frame body 1, a return spring 317 is fixedly connected inside the frame body 1, the return spring 317 is fixedly connected to the center plate 312, secondary push rods 315 are rotatably connected inside both ends of the power shaft plate 314, a lower side block 3112 is fixedly connected to the surface of the filter plate 319, one end of the secondary push rod 315 away from the return spring 317 is rotatably connected inside the lower side block 3112, a center abutment shaft 3111 is fixedly connected inside the frame body 1, a rotating push rod 316 is rotatably connected to the surface of the center abutment shaft 3111, an adjustment groove 318 is formed on the surface of the rotating push rod 316, the transverse shaft 313 is slidably connected inside the adjustment groove 318, there are two secondary push rods 315, and the two secondary push rods 315 are symmetrically arranged with the power shaft plate 314 as the axis of symmetry. The switching groove inside the frame body 1 is L-shaped, the length of the filter plate 319 is twice the length of the ventilation groove on the surface of the frame body 1, the rotating push rod 316 is located inside the sliding path of the filter plate 319, and the length of the adjustment groove 318 is half of the length of the transverse groove inside the frame body 1.

[0049] The effects achieved by this embodiment are as follows: The inverter dissipates heat through the ventilation groove and cools the internal components with external air. However, the ventilation groove is prone to accumulating impurities such as dust, mud, and oil stains. These impurities will block the ventilation holes, reduce air circulation, and cause poor heat dissipation of the inverter. Driving the cleaning plate 311 to be slidably connected inside the ventilation, thereby pushing the impurities inside the ventilation groove out of the ventilation groove, thus solving the problem that the ventilation groove of the inverter is easily blocked by external impurities. Since the main function of the ventilation groove is heat dissipation, and the accumulation of impurities will hinder air circulation and reduce the heat dissipation efficiency. Through the cleaning method from the inside to the outside, the impurities inside the ventilation groove can be effectively removed, ensuring smooth air circulation, improving the heat dissipation efficiency, and thus prolonging the service life of the inverter.

[0050] A vehicle-mounted inverter monitoring method with high-temperature monitoring and self-alarm includes the following steps:

[0051] S1. Temperature sensing step: Install temperature sensors at key parts of the inverter to ensure that the connection between the sensors and the inverter is firm and reliable; the temperature sensors can use thermistors or thermocouples, etc.

[0052] S2. Step of setting temperature threshold: According to the design specifications and performance requirements of the inverter, set an appropriate alarm temperature threshold, which can be determined based on the highest tolerable temperature of the inverter and the operating temperature range of the inverter;

[0053] S3. Alarm signal step: When the internal temperature of the inverter is too high, the temperature sensor emits an alarm signal and alerts the vehicle driver through sound, light or other warning devices.

[0054] The following is the entire working process and working principle of the above embodiments:

[0055] Initially: The central sliding frame 215 is located at one end close to the connecting cross plate 213, the outer side plate 2111 is located inside the frame body 1, the central spring 219 is not in a compressed state, the filter plate 319 is in a state of fitting with the ventilation groove, and the horizontal shaft 313 is located at one end of the adjustment groove 318 on the surface of the rotating push rod 316 away from the horizontal shaft 313.

[0056] During operation: Through the cooperation of the frame body 1 and the outward expansion mechanism 2, when the frame body 1 is placed in the vehicle armrest box and the frame body 1 needs to be fixed, the outer push plate 211 is manually pushed downward to slide. The connecting cross plate 213 is fixedly connected to the outer push plate 211, and the vertical connecting shaft 214 is fixedly connected to the lower surface of the connecting cross plate 213. The outer push plate 211 slides downward, thereby pushing the central sliding frame 215 downward through the vertical connecting shaft 214. The central sliding frame 215 slides towards the outer side plate 2111. Since the outer side plate 2111 is slidably connected to the surface of the frame body 1, and the outer side plate 2111 and the central sliding frame 215 are connected by the second middle rod 218, when the central sliding frame 215 slides downward, since the outer side plate 2111 can only slide outward under the limitation of the bottom limiting shaft 2110, and under the limitation of the bottom limiting shaft 2110 on the outer side plate 2111, the second middle rod 218 rotates clockwise around the surface of the side cross plate 216, thereby giving the outer side plate 2111 an outward thrust through the bottom limiting shaft 2110. Since the bottom limiting shaft 2110 is slidably connected to the inside of the frame body 1 and is fixedly connected to the outer side plate 2111, and since the bottom limiting shaft 2110 gives the outer side plate 2111 an outward thrust and a limit, the outer side plate 2111 slides outward under the guidance of the bottom limiting shaft 2110. Since a rubber pad is fixedly connected to the surface of the outer side plate 2111, the diameter of the frame body 1 is widened. A clamping groove is provided on the surface of the frame body 1, and a telescopic clamping shaft is provided on the inner wall of the outer push plate 211. When the outer push plate 211 slides to the position of the clamping groove, the telescopic clamping shaft on the inner wall of the outer push plate 211 extends into the clamping groove on the surface of the frame body 1, thereby clamping the outer push plate 211 that has slid to the fixed position;

[0057] Due to the different models of the vehicle, the size of the inner armrest box is also different. When encountering a vehicle model with a small armrest box, the inner wall of the armrest box gives an outward plate 2111 a thrust, thereby pushing the second middle rod 218 to slide inside the first middle rod 217, thus pushing the central spring 219 to compress. By pushing the outer push plate 211 to slide downward, the frame 1 is fixed inside the vehicle armrest box, and the second middle rod 218 slides into the first middle rod 217 to adjust the sliding length of the fixed push plate 212, thereby fixedly connecting the inverter to the inside of armrest boxes of various different sizes. This solves the problem that the vehicle's bumps cause the inverter to vibrate inside the vehicle armrest box, interfering with the internal sensors or monitoring devices of the inverter. Avoiding the vibration of the inverter in the armrest box can reduce the wear and damage of the internal components of the inverter, extend its service life, and avoid the loosening of electronic components, the cracking of solder joints, or the detachment of connectors caused by vibration, which affects the high-temperature monitoring self-alarm of the inverter. Moreover, fixing the inverter in the armrest box can protect the device from the influence of the external environment, prevent accidental touch by others, or prevent damage to the device caused by sharp bumps or collisions during driving, thus extending the service life.

[0058] Furthermore, when it is necessary to clean the ventilation slot of the inverter after the inverter has been used, the outer push plate 211 slides upward. Since the secondary push rod 315 is rotatably connected to both ends of the power shaft plate 314, the power shaft plate 314 slides upward and gives a pulling force to the filter plate 319 through the secondary push rod 315. The filter plate 319 slides inside the switching slot under the pulling of this push rod 315 and through the vertical shaft 3110. One end of the filter plate 319 away from the power shaft plate 314 is slidably connected to the vertical direction of the switching slot, and one end of the filter plate 319 close to the power shaft plate 314 is slidably connected to the horizontal direction of the switching slot, thereby changing the filter plate 319 originally attached to the ventilation slot from a vertical state to a horizontal state, thus moving the filter plate 319 blocking the ventilation slot on the surface of the frame 1 away;

[0059] During the sliding process of one end of the filter plate 319 close to the power shaft plate 314, the filter plate 319 contacts the rotating push rod 316 and pushes the rotating push rod 316 to rotate around the central abutting shaft 3111. Since the horizontal shaft 313 is slidably connected inside the transverse groove, and the horizontal shaft 313 on the surface of the central plate 312 is located inside the adjustment groove 318 on the surface of the rotating push rod 316, the rotation of the rotating push rod 316 causes the rotating push rod 316 to slide towards the ventilation groove through the adjustment groove 318 on the surface of the rotating push rod 316. Since the cleaning plate 311 is fixedly connected to the central plate 312, the central plate 312 slides towards the ventilation groove, thereby driving the cleaning plate 311 to be slidably connected inside the ventilation, so as to push the impurities attached to the surface of the ventilation groove out of the ventilation groove, thus solving the problem that the ventilation groove of the inverter is easily blocked by external impurities. Since the main function of the ventilation groove is heat dissipation, and the impurities attached to the ventilation groove on the surface of the housing 1 will hinder the air circulation and reduce the heat dissipation efficiency. Through the cleaning method from the inside to the outside, the impurities in the ventilation groove can be effectively removed, ensuring smooth air circulation and improving the heat dissipation efficiency, thereby prolonging the service life of the inverter. Moreover, if there are too many impurities in the ventilation groove, it will affect the accuracy of the temperature sensor, thus causing the self-alarm function to fail. The cleaning method from the inside to the outside can ensure the accuracy of the temperature sensor and enhance the reliability of the self-alarm function.

[0060] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle-mounted inverter with high-temperature monitoring and self-alarm function, comprising a frame body (1), characterized in that: The surface of the housing (1) is provided with ventilation grooves, and an outward expansion mechanism (2) for preventing the inverter from vibrating in the vehicle is arranged inside the housing (1), and a cleaning mechanism (3) for cleaning impurities inside the ventilation grooves on the surface of the housing (1) is arranged inside the housing (1); The outward expansion mechanism (2) includes a fixed push plate (212) that fits with the central armrest box in the vehicle; The cleaning mechanism (3) includes a power shaft plate (314) that provides power for the cleaning mechanism (3).

2. The vehicle-mounted inverter with high-temperature monitoring and self-alarm according to claim 1, characterized in that: The outward expansion mechanism (2) includes an outer push plate (211), the outer push plate (211) is slidably connected to the surface of the housing (1), a connecting cross plate (213) is slidably connected inside the housing (1), the connecting cross plate (213) is fixedly connected to the outer push plate (211), a vertical connecting shaft (214) is fixedly connected to the lower surface of the connecting cross plate (213), a central sliding frame (215) is slidably connected inside the housing (1), the central sliding frame (215) is fixedly connected to the vertical connecting shaft (214), a side cross plate (216) is fixedly connected to the surface of the central sliding frame (215), a first middle rod (217) is rotatably connected to the surface of the side cross plate (216), a second middle rod (218) is slidably connected inside the first middle rod (217), a central spring (219) is fixedly connected inside the first middle rod (217), the central spring (219) is fixedly connected to the second middle rod (218), the fixed push plate (212) is slidably connected inside the housing (1), an outer side plate (2111) is fixedly connected to the inner wall of the fixed push plate (212), one end of the second middle rod (218) away from the central sliding frame (215) is rotatably connected to the surface of the outer side plate (2111), and a bottom limiting shaft (2110) is fixedly connected to the lower surface of the outer side plate (2111), and the bottom limiting shaft (2110) is slidably connected inside the housing (1).

3. The on-vehicle inverter with high-temperature monitoring and self-alarm according to claim 2, characterized in that: There are four side cross plates (216), and the four side cross plates (216) are evenly distributed on the surface of the central sliding frame (215), and the first middle rod (217) is symmetrically arranged with respect to the side cross plate (216).

4. The on-vehicle inverter with high-temperature monitoring and self-alarm according to claim 2, characterized in that: A rubber gasket is arranged on one side of the fixed push plate (212) away from the central sliding frame (215).

5. The on-vehicle inverter with high-temperature monitoring and self-alarm according to claim 2, wherein: The cleaning mechanism (3) includes a cleaning plate (311), the cleaning plate (311) is slidably connected inside the ventilation groove on the surface of the frame body (1), the power shaft plate (314) is slidably connected inside the frame body (1), the power shaft plate (314) is fixedly connected to the upper surface of the connecting cross plate (213), a central plate (312) is slidably connected inside the frame body (1), the central plate (312) is fixedly connected to the cleaning plate (311), a switching groove and a transverse groove are formed inside the frame body (1), a transverse shaft (313) is fixedly connected to the surface of the central plate (312), the transverse shaft (313) is slidably connected inside the transverse groove on the surface of the frame body (1), a filter plate (319) is slidably connected inside the frame body (1), vertical shafts (3110) are fixedly connected to both ends of the filter plate (319), the vertical shafts (3110) are slidably connected inside the switching groove on the surface of the frame body (1), a return spring (317) is fixedly connected inside the frame body (1), the return spring (317) is fixedly connected to the central plate (312), secondary push rods (315) are rotatably connected inside both ends of the power shaft plate (314), a lower side block (3112) is fixedly connected to the surface of the filter plate (319), one end of the secondary push rod (315) away from the return spring (317) is rotatably connected inside the lower side block (3112), a central abutting shaft (3111) is fixedly connected inside the frame body (1), a rotating push rod (316) is rotatably connected to the surface of the central abutting shaft (3111), an adjusting groove (318) is formed on the surface of the rotating push rod (316), and the transverse shaft (313) is slidably connected inside the adjusting groove (318).

6. The vehicle-mounted inverter with high-temperature monitoring and self-alarm according to claim 5, characterized in that: There are two secondary push rods (315), and the two secondary push rods (315) are symmetrically arranged with the power shaft plate (314) as the axis of symmetry, and the switching groove inside the frame body (1) is L-shaped.

7. The vehicle-mounted inverter with high-temperature monitoring and self-alarm according to claim 5, characterized in that: The length of the filter plate (319) is twice the length of the ventilation groove on the surface of the frame body (1).

8. An in-vehicle inverter with high-temperature monitoring and self-alarm according to claim 5, characterized in that: The rotating push rod (316) is located inside the sliding path of the filter plate (319), and the length of the adjusting groove (318) is half of the length of the transverse groove inside the frame body (1).

9. A vehicle-mounted inverter monitoring method for high-temperature monitoring and self-alarm according to claims 1-8, characterized in that, It includes the following steps: S1. Temperature sensing step: Install temperature sensors at key parts of the inverter to ensure that the connection between the sensors and the inverter is firm and reliable. The temperature sensors can be thermistors or thermocouples, etc.; S2. Set temperature threshold step: According to the design specifications and performance requirements of the inverter, set a suitable alarm temperature threshold, which can be determined according to the highest tolerable temperature of the inverter and the operating temperature range of the inverter; S3. Alarm signal step: When the internal temperature of the inverter is too high, the temperature sensor emits an alarm signal and reminds the vehicle driver through sound, light or other warning devices.

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