Fault diagnosis device

Abstract

The utility model relates to the technical field of fault diagnosis, in particular to a fault diagnosis device, which comprises a support, a signal acquisition module and an intelligent screen, the signal acquisition module and the intelligent screen are mounted on the support, the signal acquisition module comprises a shell and a detection connector, a comparator is arranged in the shell, and a non-inverting input end of the comparator is connected with reference voltage. The reverse input end of the comparator is connected with one end of the detection connector, the other end of the detection connector is used for being connected with a device to be detected, the output end of the comparator is connected with the intelligent screen and one end of the resistor, and the other end of the resistor is connected with the reverse input end of the comparator. The fault diagnosis system has the advantages of improving the fault diagnosis efficiency and accuracy and reducing the cost.

Description

Technical Field

[0001] The utility model relates to the technical field of fault diagnosis, in particular to a fault diagnosis device. Background Art

[0002] As the integration of vehicles and intelligent technology continues to improve, the difficulty of vehicle fault diagnosis is also increasing. For maintenance personnel who rely on maintenance experience, it takes a lot of time to diagnose vehicle faults, resulting in low efficiency, extended maintenance time, and a certain probability of misjudgment. Disassembly and maintenance of places where there is no fault will lead to increased maintenance costs. Utility Model Content

[0003] In order to solve the problems in the related art, the present application provides a fault diagnosis device, which solves the problems of low efficiency, low accuracy and high cost of fault diagnosis.

[0004] The technical solution is as follows:

[0005] A fault diagnosis device comprises a bracket, a signal acquisition module and a smart screen installed on the bracket, wherein the signal acquisition module comprises a shell and a detection connector, a comparator is arranged in the shell, a same-direction input terminal of the comparator is connected to a reference voltage, a reverse input terminal of the comparator is connected to one end of the detection connector, the other end of the detection connector is used to be connected to a device to be detected, the output terminal of the comparator is respectively connected to the smart screen and one end of a resistor, and the other end of the resistor is connected to the reverse input terminal of the comparator.

[0006] Through the above technical solution, through the setting of the signal acquisition module, when performing fault diagnosis, the maintenance personnel will determine whether a fault occurs through the negative feedback data detected by the signal acquisition module in the smart screen, and compare the voltage in the device to be detected with the reference voltage. When the detected voltage in the device to be detected exceeds the set range, it is determined that the device to be detected has a fault. The structure is simple and fast, the detection efficiency is improved, and the detection accuracy is high, thereby shortening the maintenance time and reducing the maintenance cost.

[0007] Preferably, the bracket includes a fixing plate, a connecting plate and a fixing ring, the fixing plate and the connecting plate are integrally formed, two annular storage grooves with consistent structures are arranged at intervals along the outer periphery of the fixing plate, anti-slip pads are arranged on both sides of the connecting plate, and the fixing ring is fixedly arranged in the connecting plate at one end away from the fixing plate.

[0008] Through the above technical scheme, by setting the annular storage groove, when the device is in an idle state, the detection connector on the signal acquisition module can be wrapped around a certain annular storage groove, thereby ensuring the integrity of the signal acquisition module and facilitating the storage of the device; the setting of the fixed ring can complete the rapid storage of the device; by setting an anti-slip pad on the connecting plate, it is convenient for maintenance personnel to grab the bracket, thereby ensuring the smooth progress of the detection process.

[0009] Preferably, the signal acquisition module is installed on one side of the fixed plate, and the signal acquisition module is detachably arranged; two hooks with the same structure are arranged at intervals on the shell, and the hooks are arranged in a "U" shape, and the vertical part of the hook close to the signal acquisition module and the fixed plate are arranged at intervals; two first threaded holes with the same structure are arranged at intervals on the top of the fixed plate, and second threaded holes are arranged on the horizontal parts of the two hooks, the second threaded holes and the first threaded holes have the same structure and corresponding positions, and the second threaded holes are through holes.

[0010] Through the above technical solution, by setting the hook, the signal acquisition module can be fixedly installed on one side of the fixed plate by bolts. Since there is a gap between the fixed plate and the signal acquisition module, it is convenient to wrap the detection connector along the annular storage groove, thereby ensuring the integrity of the signal acquisition module.

[0011] Preferably, the smart screen is installed on the other side of the fixed plate, and a slider is provided on one side along the length direction of the smart screen. The top and bottom ends of the slider are both provided with strip grooves with the same structure.

[0012] Preferably, two mounting plates with the same structure are spaced apart on the side end surface of the fixed plate, and the two mounting plates are connected by a fixed shaft, a rotating ring is sleeved on the fixed shaft, a rubber strip is arranged along the inner wall periphery of the rotating ring, a fixing rod is fixedly connected to the outer side of the rotating ring, and a slide groove is arranged on the other end of the fixing rod close to the smart screen, and the slide groove is adapted to the sliding block.

[0013] Through the above technical solution, through the setting of the slide groove and the slider, the position of the smart screen can be adjusted by manually pushing the smart screen, thereby exposing the annular storage groove behind the smart screen, thereby facilitating the storage and winding of the detection joint.

[0014] In summary, the beneficial effects of a fault diagnosis device are:

[0015] 1. Through the setting of the signal acquisition module, when performing fault diagnosis, the maintenance personnel will determine whether a fault occurs through the negative feedback data detected by the signal acquisition module in the smart screen, and compare the voltage in the device to be detected with the reference voltage. When the voltage in the device to be detected exceeds the set range, it is determined that the device to be detected has a fault. The structure is simple and fast, the detection efficiency is improved, and the detection accuracy is high, thereby shortening the maintenance time and reducing the maintenance cost;

[0016] 2. By setting the annular storage groove, when the device is in an idle state, the detection connector on the signal acquisition module can be wrapped around a certain annular storage groove, thereby ensuring the integrity of the signal acquisition module and facilitating the storage of the device; the setting of the fixed ring can complete the rapid storage of the device; by setting an anti-slip pad on the connecting plate, it is convenient for maintenance personnel to grab the bracket, thereby ensuring the smooth progress of the detection process; by setting the hook, the signal acquisition module can be fixedly installed on one side of the fixed plate by bolts, and because there is a gap between the fixed plate and the signal acquisition module, it is convenient to wrap the detection connector along the annular storage groove, thereby ensuring the integrity of the signal acquisition module; by setting the slide groove and the slider, the position of the smart screen can be adjusted by manually pushing the smart screen, thereby exposing the annular storage groove behind the smart screen, thereby facilitating the storage and winding of the detection connector.

[0017] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0019] Figure 1 It is a structural schematic diagram of a fault diagnosis device;

[0020] Figure 2 A schematic diagram of circuit connection of a comparator in a fault diagnosis device;

[0021] Figure 3 It is a schematic diagram of the structure explosion of a slide block in a fault diagnosis device;

[0022] Figure 4 It is a structural schematic diagram of a signal acquisition module in a fault diagnosis device;

[0023] Figure 5 for Figure 3 Enlarged view of sequence number A;

[0024] Figure 6 for Figure 3 Enlarged view of sequence number B;

[0025] In the figure, 1, bracket; 101, fixing plate; 102, connecting plate; 103, fixing ring; 2, signal acquisition module; 3, smart screen; 4, ring-shaped storage groove; 5, anti-slip pad; 6, hook; 7, second threaded hole; 8, slider; 9, mounting plate; 10, fixed shaft; 11, rotating ring; 12, fixing rod; 13, slide groove. DETAILED DESCRIPTION

[0026] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the utility model. Instead, they are only examples of devices and methods consistent with some aspects of the utility model as detailed in the attached claims.

[0027] In a possible embodiment, as shown in the attached Figure 1-6 As shown, a fault diagnosis device includes a bracket 1, a signal acquisition module 2 installed on the bracket 1, and a smart screen 3, the signal acquisition module 2 includes a shell and a detection connector, a comparator is arranged in the shell, in this specific embodiment, an LM339 comparator is used, the same-direction input terminal of the comparator is connected to a reference voltage, the negative input terminal of the comparator is connected to one end of the detection connector, the other end of the detection connector is used to connect to a device to be detected, the output terminal of the comparator is respectively connected to the smart screen 3 and one end of a resistor, the other end of the resistor is connected to a reverse input terminal of the comparator, in this specific embodiment, the resistance value of the resistor can be selected within the resistance value range that the comparator can handle; fault diagnosis is performed through negative feedback, and the maintenance personnel will determine whether a fault occurs through the data detected by the signal acquisition module 2 in the smart screen 3, and compare the voltage in the device to be detected with the reference voltage. When the voltage detected in the device to be detected exceeds the set range, it is determined that the device to be detected has a fault. The structure is simple and fast, the detection efficiency is improved, and the detection accuracy is high, thereby shortening the maintenance time and reducing the maintenance cost.

[0028] The bracket 1 includes a fixing plate 101, a connecting plate 102 and a fixing ring 103. The fixing plate 101 and the connecting plate 102 are integrally formed. Two annular storage grooves 4 with the same structure are arranged at intervals along the outer periphery of the fixing plate 101. Anti-skid pads 5 are arranged on both sides of the connecting plate 102. The fixing ring 103 is fixedly arranged at one end of the connecting plate 102 away from the fixing plate 101. When the device is in an idle state, the detection connector on the signal acquisition module 2 can be wound along the annular storage groove 4. After the winding is completed, the last section can be stuffed between the previously wound circles to complete the storage, thereby ensuring the integrity of the signal acquisition module 2 and facilitating the storage of the device; the setting of the fixing ring 103 can complete the rapid storage of the device; by arranging the anti-skid pad 5 on the connecting plate 102, it is convenient for maintenance personnel to grab the bracket 1, thereby ensuring the smooth progress of the detection process.

[0029] The signal acquisition module 2 is installed on one side of the fixed plate 101, and the signal acquisition module 2 is detachably arranged; two hooks 6 with the same structure are arranged at intervals on the shell, and the hooks 6 are arranged in a "U" shape, and the vertical part of the hook 6 close to the signal acquisition module 2 and the fixed plate 101 are arranged at intervals; two first threaded holes with the same structure are arranged at intervals on the top of the fixed plate 101, and second threaded holes 7 are arranged on the horizontal parts of the two hooks 6, the second threaded holes 7 and the first threaded holes have the same structure and corresponding positions, and the second threaded holes 7 are through holes; after the signal acquisition module 2 is fixedly installed on one side of the fixed plate 101 by bolts, due to the interval between the fixed plate 101 and the signal acquisition module 2, it is convenient to wrap the detection joint along the annular storage groove 4, thereby ensuring the integrity of the signal acquisition module 2.

[0030] The smart screen 3 is installed on the other side of the fixed plate 101, and a slider 8 is provided on one side along the length direction of the smart screen 3. The top and bottom ends of the slider 8 are provided with strip grooves with the same structure; two mounting plates 9 with the same structure are arranged at intervals on the side end surface of the fixed plate 101, and the two mounting plates 9 are connected by a fixed shaft 10. A rotating ring 11 is sleeved on the fixed shaft 10, and a rubber strip is provided along the inner wall periphery of the rotating ring 11. A fixed rod 12 is fixedly connected to the outer side of the rotating ring 11, and a slide groove 13 is provided on the other end of the fixed rod 12 close to the smart screen 3, and the slide groove 13 is adapted to the slider 8; the smart screen 3 can be pushed manually to change its position after moving along the length direction of the slider 8, thereby exposing the annular storage groove 4 behind the smart screen 3, so as to facilitate the storage and winding of the detection joint.

[0031] Working principle: connect the positive input terminal of the comparator with the reference voltage, connect the detection connector with the device to be detected, the maintenance personnel hold the connecting plate 102 with one hand, and adjust the angle of the display screen with the other hand to facilitate the maintenance personnel to view the detection data. After completion, observe the data on the smart screen 3. When the voltage detected in the device to be detected exceeds the set range, it is determined that the device to be detected has a fault; after the detection is completed, disconnect the connection between the detection connector and the device to be detected, manually push the position of the smart screen 3, and leak out the annular storage groove 4 on one side, remove the detection connector at the corresponding position and wrap it along the annular storage groove 4, and stuff the last end into the circle it is wrapped around, or you can push the smart screen 3 in the opposite direction until the annular storage groove 4 on the other side leaks out, and wrap the detection connector around the annular storage groove 4 at the other end. After completion, adjust the smart screen 3 until the smart screen 3 and the fixed plate 101 are parallel. After storage is completed, it can be hung somewhere by the fixing ring 103.

[0032] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the present invention. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not present in the present invention. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present invention are indicated by the appended claims.

[0033] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A fault diagnosis device, comprising a bracket, a signal acquisition module mounted on the bracket and a smart screen, characterized in that: The signal acquisition module includes a shell and a detection connector. A comparator is arranged in the shell. The same-direction input terminal of the comparator is connected to a reference voltage, the reverse input terminal of the comparator is connected to one end of the detection connector, and the other end of the detection connector is used to connect to a device to be detected. The output terminal of the comparator is respectively connected to the smart screen and one end of a resistor, and the other end of the resistor is connected to the reverse input terminal of the comparator.

2. A fault diagnosis device according to claim 1, characterized in that: The bracket includes a fixing plate, a connecting plate and a fixing ring. The fixing plate and the connecting plate are integrally formed. Two annular storage grooves with the same structure are spaced apart along the outer periphery of the fixing plate. Anti-slip pads are provided on both sides of the connecting plate. The fixing ring is fixedly arranged at one end of the connecting plate away from the fixing plate.

3. A fault diagnosis device according to claim 2, characterized in that: The signal acquisition module is installed on one side of the fixing plate, and the signal acquisition module is detachably arranged; two hooks with the same structure are arranged at intervals on the shell, and the hooks are arranged in a "U" shape, and the vertical part of the hook close to the signal acquisition module and the fixing plate are arranged at intervals; Two first threaded holes with the same structure are arranged at intervals on the top of the fixing plate, and second threaded holes are arranged on the horizontal parts of the two hooks. The second threaded holes have the same structure and corresponding positions as the first threaded holes, and the second threaded holes are through holes.

4. A fault diagnosis device according to claim 2, characterized in that: The smart screen is installed on the other side of the fixed plate, and a slider is provided on one side along the length direction of the smart screen. The top and bottom ends of the slider are both provided with strip grooves with the same structure.

5. A fault diagnosis device according to claim 4, characterized in that: Two mounting plates with the same structure are arranged at intervals on the side end surface of the fixed plate, and the two mounting plates are connected by a fixed shaft, a rotating ring is sleeved on the fixed shaft, a rubber strip is arranged along the inner wall periphery of the rotating ring, a fixing rod is fixedly connected to the outer side of the rotating ring, and a slide groove is arranged on the other end of the fixing rod close to the smart screen, and the slide groove is adapted to the sliding block.

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