An electrical equipment operation state detection device

Abstract

This invention relates to electrical variable detection, and more specifically to the field of electric vehicle electrical equipment detection technology. It discloses an electrical equipment operating status detection device, including a motor mounting bracket and a drive motor. The motor mounting bracket has a mounting part, the mounting part has a guide part, the guide part has an elastic detection part, the elastic detection part is connected to a displacement amplification mechanism, and the guide part is connected to a locking part. The elastic detection part includes a sliding arm, one side of which is connected to a tension spring. A second wedge block is fixedly connected to the sliding arm, and one side of the second wedge block has a rod hole. Through the cooperation of the elastic detection part and the conductive pad, the device directly collects the minute mechanical vibration signals of the drive motor, achieving the effect of accurately identifying hidden faults such as bearing wear and winding loosening. This differs from the existing technology that relies on electrical parameters for indirect judgment, demonstrating a more direct fault detection and more timely prediction.

Description

Technical Field

[0001] This invention relates to the field of electrical variable detection, and more specifically to the field of electric vehicle electrical equipment detection technology, specifically an electrical equipment operating status detection device. Background Technology

[0002] With the rapid increase in the penetration rate of new energy vehicles, the reliability of the three-electric system has become a key factor restricting the development of the industry. Among them, hidden mechanical faults such as motor bearing wear and motor winding loosening are prone to sudden outbreaks under specific operating conditions due to their long latency period and vague symptoms, leading to vehicle breakdowns or even safety accidents, seriously affecting driving safety and user experience. At present, the detection of hidden mechanical faults in electric vehicle electrical equipment has become a core requirement for the high-quality development of the new energy vehicle industry, providing technical support for the safe operation of the three-electric system and adapting to the complex driving conditions and multi-physical field coupling operating environment of electric vehicles.

[0003] In existing technologies, fault detection of electrical equipment in electric vehicles mostly relies on the stacking of multiple sensors and optimization of data algorithms. The core detection logic is mainly based on the acquisition of electrical parameters, and the mechanical structure only serves as a fixed carrier for the sensors and does not participate in the core process of fault detection. Although some detection schemes introduce simple mechanical fixing structures, they can only realize the installation and positioning of sensors and cannot directly detect hidden mechanical anomalies. Other schemes attempt to detect mechanical parameters through a single mechanical structure, but they lack the design to adapt to the high-frequency vibration environment of electric vehicles, are easily affected by driving vibrations, and cannot capture small mechanical displacements and vibration signals. The detection accuracy is difficult to meet the needs of hidden fault detection.

[0004] Existing detection methods cannot directly detect hidden mechanical faults in electrical equipment through mechanical structures. They rely on multiple sensors to collect electrical variables for indirect judgment, which makes it difficult to capture the subtle vibrations in the early stages of motor bearing wear, resulting in delayed fault prediction. At the same time, single mechanical detection structures lack anti-interference design and signal amplification functions, making them susceptible to vibrations from electric vehicles, resulting in low detection accuracy and a high false positive rate. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an electrical equipment operation status detection device, which solves the problems of existing motor operation status detection technologies, such as the inability to accurately and directly detect minute vibration latent mechanical faults, susceptibility to interference from driving vibrations, low detection accuracy, and high false judgment rate.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: an electrical equipment operating status detection device, comprising a motor mounting bracket and a drive motor, wherein the motor mounting bracket is provided with a mounting part, the mounting part is provided with a guide part, the guide part is provided with an elastic detection part, the elastic detection part is connected to a displacement amplification mechanism, the guide part is connected to a locking part, the elastic detection part includes a sliding arm, one side of the sliding arm is connected to a tension spring, a second wedge block is fixedly connected to the sliding arm, a rod hole is opened on one side of the second wedge block, a ball screw is slidably connected to the inner wall of the rod hole, a first nut seat and a second nut seat are connected to the ball screw, a disc spring is elastically connected between the first nut seat and the second wedge block, two limiting plates are fixedly sleeved on the ball screw, and the second nut seat is located between the two limiting plates.

[0007] Preferably, the mounting part includes a bracket, and the corner ends of the bracket are respectively fixedly connected to support arm one, support arm two, support arm three and support arm four, a conductive pad is fixedly connected to support arm one, and a conductive arm is fixedly connected to the conductive pad.

[0008] Preferably, the bracket is mounted on the motor mounting bracket, the transmission arm is an arc-shaped structure, the transmission arm abuts against the outer wall of the drive motor, a support plate is fixedly connected between the support arm three and the support arm four, and the end of the ball screw away from the wedge block two is rotatably connected to the support plate.

[0009] Preferably, the guide portion includes a guide plate, which is fixedly connected to the second support arm. A sliding rod is slidably passed through one end of the guide plate, and a wedge block is fixedly connected to the end of the sliding rod. A spring is elastically connected between the wedge block and the guide plate.

[0010] Preferably, the other end of the guide plate has a groove, the inner wall of the groove is fixedly connected to a slide rod two, the slide arm is slidably connected to the inner wall of the groove and slidably sleeved on the slide rod two, and a guide rod is fixedly connected to the guide plate.

[0011] Preferably, the wedge surface of the first wedge block abuts against the wedge surface of the second wedge block, the first wedge block abuts against the conductive pad, the second wedge block contacts the guide plate, and one side of the first nut seat and the second nut seat are slidably sleeved on the guide rod.

[0012] Preferably, the displacement amplification mechanism includes a positioning pin, which is fixedly connected to the other side of the nut seat two. A rocker arm is provided on the positioning pin, and a sliding hole is opened at one end of the rocker arm. The rocker arm is slidably sleeved on the positioning pin through the sliding hole. A support pin is provided at one-third of the length of the rocker arm, and a positioning arm is provided on the support pin. The rocker arm is hinged to the positioning arm through the support pin. A guide rail is fixedly connected to the positioning arm, and the guide rail is installed on the support arm four. A displacement sensing component is installed on the guide rail, and a toothed arm is slidably connected inside the guide rail. A sector gear is fixedly connected to the other end of the rocker arm, and the sector gear meshes with the toothed arm.

[0013] Preferably, the displacement sensing component includes a miniature displacement sensor and a micro MCU, signal conditioning circuit, ADC sampling unit, CAN transceiver and voltage regulation protection circuit integrated on the miniature displacement sensor, wherein the movable end of the miniature displacement sensor is fixedly connected to the toothed arm.

[0014] Preferably, the locking part includes a fixed seat, which is fixedly connected to the end of the guide rod. The fixed seat is provided with a torsion spring and elastically connected to a clip through the torsion spring. The clip has an L-shaped structure, and the end of the ball screw is provided with a groove that matches the clip.

[0015] Preferably, a first sleeve is fixedly connected to the side of the nut seat, a push rod is fixedly connected to the inner wall of the first sleeve, a second sleeve is slidably sleeved on the push rod, the second sleeve is fixedly connected to the side of the nut seat, a pull rope is fixedly connected to the end of the push rod away from the first sleeve, and the push rod is fixedly connected to one end of the clamp through the pull rope.

[0016] (III) Beneficial Effects Compared with the prior art, the present invention provides an electrical equipment operating status detection device, which has the following beneficial effects: 1. This electrical equipment operation status detection device directly collects minute mechanical vibration signals from the drive motor through the cooperation of the elastic detection part and the conductive pad, achieving the effect of accurately identifying hidden faults such as bearing wear and winding loosening. It is different from the existing technology that relies on electrical parameters for indirect judgment, reflecting the progress of more direct fault detection and more timely prediction.

[0017] 2. This electrical equipment operation status detection device, through the linkage between the locking part and the ball screw, constrains the rotation of the screw in a non-faulty state, thereby achieving the effect of resisting high-frequency interference vibrations from vehicle driving and avoiding false triggering. It is different from the existing detection mechanism without locking design, demonstrating a stronger anti-interference capability and a lower false judgment rate.

[0018] 3. This electrical equipment operation status detection device amplifies minute mechanical displacements through a combination of rocker arms, sector gears, and toothed arms in the displacement amplification mechanism, thereby improving the detectability of weak signals. Unlike existing structures without amplification functions, this device demonstrates higher detection accuracy and stronger ability to identify minute faults.

[0019] 4. This electrical equipment operation status detection device, through the cooperation of displacement sensing components and the vehicle CAN bus, synchronously connects displacement signals to the vehicle system, achieving the effect of joint analysis with the original vehicle current and temperature signals. Unlike existing independent detection devices, it reflects the progress of better data coordination and more reliable diagnostic results.

[0020] 5. This electrical equipment operation status detection device, through the combination of the guide part and the elastic detection part, stably transmits mechanical displacement and limits the transmission direction, achieving the effect of adapting to complex vehicle operation conditions. It is different from the existing simple fixed structure and reflects a significant improvement in more stable operation and stronger vehicle applicability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the drive motor of the present invention; Figure 3 This is a schematic diagram of the mounting part of the present invention; Figure 4 This is a connection diagram of the elastic detection part and the locking part of the present invention; Figure 5 This is a schematic diagram of the structure of the guide section of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of A in the middle; Figure 7 This is a schematic diagram of the elasticity detection unit of the present invention; Figure 8 This is a schematic diagram of the displacement amplification mechanism of the present invention.

[0022] In the diagram: 1. Motor mounting bracket; 2. Drive motor; 3. Mounting part; 31. Bracket; 32. Support arm one; 33. Support arm two; 34. Support arm three; 35. Support arm four; 36. Conductive pad; 37. Conductive arm; 38. Support plate; 4. Guide part; 41. Guide plate; 42. Slide rod one; 43. Wedge block one; 44. Spring; 45. Slide rod two; 46. Guide rod; 5. Elasticity detection part; 51. Slide arm; 52. Tension spring; 53. Wedge block two; 54. Ball screw; 55. Disc spring; 56. Nut seat one; 57. Nut seat two; 6. Displacement amplification mechanism; 61. Positioning pin; 62. Rocker arm; 63. Sliding hole; 64. Support pin; 65. Positioning arm; 66. Guide rail; 67. Displacement sensing component; 68. Gear arm; 69. Sector gear; 7. Locking part; 71. Fixed seat; 72. Clamp; 73. Slot; 74. Rod sleeve one; 75. Push rod; 76. Rod sleeve two; 77. Pull rope. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figure 1 - Figure 8 This invention provides an electrical equipment operating status detection device, including a motor mounting bracket 1 and a drive motor 2. The motor mounting bracket 1 is provided with a mounting part 3, the mounting part 3 is provided with a guide part 4, the guide part 4 is provided with an elastic detection part 5, the elastic detection part 5 is connected to a displacement amplification mechanism 6, and the guide part 4 is connected to a locking part 7. The elastic detection part 5 includes a sliding arm 51, a tension spring 52 is connected to one side of the sliding arm 51, a wedge block 53 is fixedly connected to the sliding arm 51, a rod hole is opened on one side of the wedge block 53, a ball screw 54 is slidably connected to the inner wall of the rod hole, a nut seat 56 and a nut seat 57 that cooperate with each other are connected to the ball screw 54, a disc spring 55 (DIN2093 standard disc spring, Φ12 / Φ6×0.5mm) is elastically connected between the nut seat 56 and the wedge block 53, and two limit plates are fixedly sleeved on the ball screw 54, with the nut seat 57 located between the two limit plates.

[0025] In use, the minute mechanical displacement generated by the drive motor 2 is transmitted to the transmission pad 36 via the transmission arm 37, and then transmitted to the second wedge block 53 via the first wedge block 43. The second wedge block 53 pushes the disc spring 55, which transmits the displacement to the first nut seat 56. The first nut seat 56 moves linearly along the guide rod 46, which drives the ball screw 54 to rotate. The rotation of the ball screw 54 drives the second nut seat 57 to move along the guide rod 46. The range of motion of the second nut seat 57 is limited by two limit plates.

[0026] In this invention, the mounting part 3 includes a bracket 31. The corner ends of the bracket 31 are respectively fixedly connected to support arms 1 32, 2 33, 34 and 4 35. A conductive pad 36 is fixedly connected to support arm 1 32, and a conductive arm 37 is fixedly connected to conductive pad 36. The gap between conductive arm 37 and conductive pad 36 ensures normal heat dissipation of the motor and prevents heat accumulation. The bracket 31 is mounted on the motor mounting bracket 1. The conductive arm 37 has an arc-shaped structure and abuts against the outer wall of the drive motor 2. A support plate 38 is fixedly connected between support arm 34 and support arm 4 35. The end of the ball screw 54 away from the wedge block 2 53 is rotatably connected to the support plate 38.

[0027] In use, the bracket 31 is fixed to the motor mounting bracket 1 by the first support arm 32, the second support arm 33, the third support arm 34, and the fourth support arm 35. The transmission arm 37 is in close contact with the outer wall of the drive motor 2. The vibration and displacement generated by the motor operation are transmitted to the transmission pad 36 through the transmission arm 37.

[0028] In this embodiment, the guide part 4 includes a guide plate 41, which is fixedly connected to the second support arm 33. One end of the guide plate 41 is slidably connected to a slide rod 42, and the end of the slide rod 42 is fixedly connected to a wedge block 43. A spring 44 is elastically connected between the wedge block 43 and the guide plate 41. The other end of the guide plate 41 has a groove, and the inner wall of the groove is fixedly connected to a slide rod 45. The slide arm 51 is slidably connected to the inner wall of the groove and slidably sleeved on the slide rod 45. A guide rod 46 is fixedly connected to the guide plate 41. The wedge surface of the wedge block 43 abuts against the wedge surface of the second wedge block 53. The wedge block 43 abuts against the conductive pad 36. The wedge block 53 contacts the guide plate 41. One side of the nut seat 56 and the nut seat 57 are slidably sleeved on the guide rod 46.

[0029] In use, the transmission pad 36 converts the irregular vibration of the drive motor 2 into the linear reciprocating motion of the second wedge block 53, which is then transmitted to the first wedge block 43. The first wedge block 43 is kept in contact with the wedge surface of the second wedge block 53 under the action of the spring 44. The sliding arm 51 slides along the second sliding rod 45 to limit the movement direction of the first wedge block 43.

[0030] It is worth noting that the displacement amplification mechanism 6 includes a positioning pin 61, which is fixedly connected to the other side of the nut seat 57. A rocker arm 62 is provided on the positioning pin 61. A sliding hole 63 is provided at one end of the rocker arm 62. The rocker arm 62 is slidably sleeved on the positioning pin 61 through the sliding hole 63. A support pin 64 is provided at one-third of the length of the rocker arm 62. A positioning arm 65 is provided on the support pin 64. The rocker arm 62 is hinged to the positioning arm 65 through the support pin 64. A guide rail 66 is fixedly connected to the positioning arm 65. The guide rail 66 is installed on the support arm 35. A displacement sensing component 67 is installed on the guide rail 66. A toothed arm 68 is slidably connected inside the guide rail 66. A sector gear 69 is fixedly connected to the other end of the rocker arm 62. The sector gear 69 meshes with the toothed arm 68.

[0031] In use, the nut seat 57 drives the positioning pin 61 to move. The positioning pin 61 drives the rocker arm 62 to rotate around the support pin 64 through the sliding hole 63. The rocker arm 62 drives the sector gear 69 to swing. The sector gear 69 meshes with the toothed arm 68, causing the toothed arm 68 to move linearly along the guide rail 66, thus completing the displacement amplification based on the lever amplification principle.

[0032] Furthermore, the displacement sensing component 67 includes a miniature displacement sensor (WYD-10A type displacement sensor) and a micro MCU (STM32G070KBT6), signal conditioning circuit, ADC sampling unit (built into the micro MCU), CAN transceiver (TJA1050T), and voltage regulation and protection circuit (LM1117-5.0 regulated power supply and SMF05C electrostatic protection) integrated on the miniature displacement sensor. The voltage regulation and protection circuit provides stable power supply, and the movable end of the miniature displacement sensor is fixedly connected to the toothed arm 68.

[0033] In use, the linear displacement of the toothed arm 68 acts on the displacement sensing component 67, which converts the displacement signal into an electrical signal. After being processed by the internal circuit, the signal is connected to the electric vehicle's on-board network via the CAN bus and uploaded synchronously with the vehicle's original electrical variable signals.

[0034] It is worth noting that the locking part 7 includes a fixed seat 71, which is fixedly connected to the end of the guide rod 46. A torsion spring is provided on the fixed seat 71 and a clamp 72 is elastically connected to it through the torsion spring. The clamp 72 has an L-shaped structure. The end of the ball screw 54 is provided with a groove 73 that matches the clamp 72. A first rod sleeve 74 is fixedly connected to the side of the nut seat 56. A push rod 75 is fixedly connected to the inner wall of the first rod sleeve 74. A second rod sleeve 76 is slidably sleeved on the push rod 75. The second rod sleeve 76 is fixedly connected to the side of the nut seat 57. A pull rope 77 is fixedly connected to the end of the push rod 75 away from the first rod sleeve 74. The push rod 75 is fixedly connected to one end of the clamp 72 through the pull rope 77.

[0035] In use, the clamp 72 is engaged in the slot 73 of the ball screw 54 under the action of the torsion spring, restricting the rotation of the ball screw 54. When the nut seat 1 56 and the nut seat 2 57 are relatively displaced, the push rod 75 pulls the clamp 72 through the pull rope 77, causing the clamp 72 to disengage from the slot 73 and releasing the rotation constraint of the ball screw 54.

[0036] When this electrical equipment operation status detection device is in use, the minute mechanical vibrations generated during the operation of the drive motor 2 are transmitted to the conduction pad 36 via the arc-shaped conduction arm 37, and then transmitted to the wedge block 43 by the conduction pad 36. The wedge block 43 is kept in contact with the wedge surface of the second wedge block 53 under the action of the spring 44, and the vibration is converted into the linear displacement of the second wedge block 53 along the slide bar 45, forming an adaptive vibration transmission path, which can maintain stable signal transmission as the operating posture of the drive motor 2 changes.

[0037] During vehicle operation, high-frequency interference vibrations are generated. The clip 72 of the locking part 7 is engaged in the slot 73 of the ball screw 54 under the action of the torsion spring, keeping the ball screw 54 in a locked state, preventing external high-frequency vibrations from causing the ball screw 54 to rotate freely, and avoiding non-fault vibrations from triggering the detection mechanism to operate.

[0038] When the drive motor 2 experiences latent faults such as bearing wear or winding loosening, it will generate a mechanical micro-displacement with a specific amplitude and frequency. This displacement is pushed by the wedge block 2 53 to the disc spring 55, which transmits the displacement to the nut seat 1 56, causing the nut seat 1 56 to move along the guide rod 46 and drive the ball screw 54 to rotate. The rotation of the ball screw 54 drives the nut seat 2 57 to move synchronously along the guide rod 46. The two limit plates limit the movement range of the nut seat 2 57 to ensure transmission stability. The relative displacement between the nut seat 1 56 and the nut seat 2 57 drives the push rod 75 to pull the pull rope 77, causing the clamp 72 to disengage from the slot 73 and releasing the locking constraint of the ball screw 54. Only then can the ball screw 54 be driven to rotate.

[0039] The movement of nut seat 57 drives the positioning pin 61, which in turn drives the rocker arm 62 to rotate around the support pin 64 through the sliding hole 63. The rocker arm 62 forms a lever amplification structure with one-third of its length as the fulcrum, amplifying the input small displacement and driving the end sector gear 69 to rotate. The sector gear 69 meshes with the toothed arm 68, converting the small swing of the rocker arm 62 into the linear motion of the toothed arm 68 along the guide rail 66, further increasing the displacement amplitude.

[0040] The linear displacement of the toothed arm 68 acts on the miniature displacement sensor of the displacement sensing component 67. The sensor outputs an analog signal, which is processed by the signal conditioning circuit and the ADC sampling unit, and then packaged into a digital signal by the micro MCU. The displacement signal is then sent to the vehicle CAN bus through the CAN transceiver.

[0041] The displacement signal is synchronously compared with the vehicle's original current and temperature signals in the on-board processor. Based on the correspondence between mechanical displacement and changes in electrical variables, the system identifies whether there are hidden mechanical faults such as bearing wear or loose windings in the drive motor 2, and completes real-time detection and synchronous signal uploading of the drive motor 2's operating status.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An electrical equipment operating status detection device, comprising a motor mounting bracket (1) and a drive motor (2), characterized in that: The motor mounting bracket (1) is provided with a mounting part (3), the mounting part (3) is provided with a guide part (4), the guide part (4) is provided with an elastic detection part (5), the elastic detection part (5) is connected to a displacement amplification mechanism (6), the guide part (4) is connected to a locking part (7), the elastic detection part (5) includes a sliding arm (51), one side of the sliding arm (51) is connected to a tension spring (52), and a wedge is fixedly connected to the sliding arm (51). Block 2 (53), a rod hole is provided on one side of the wedge block 2 (53), a ball screw (54) is slidably connected to the inner wall of the rod hole, a nut seat 1 (56) and a nut seat 2 (57) are connected to the ball screw (54) and they cooperate with each other, a disc spring (55) is elastically connected between the nut seat 1 (56) and the wedge block 2 (53), two limiting plates are fixedly sleeved on the ball screw (54), and the nut seat 2 (57) is located between the two limiting plates.

2. The electrical equipment operating status detection device according to claim 1, characterized in that: The mounting part (3) includes a bracket (31), and the corner ends of the bracket (31) are respectively fixedly connected to a first support arm (32), a second support arm (33), a third support arm (34) and a fourth support arm (35). A conductive pad (36) is fixedly connected to the first support arm (32), and a conductive arm (37) is fixedly connected to the conductive pad (36).

3. The electrical equipment operating status detection device according to claim 2, characterized in that: The bracket (31) is mounted on the motor mounting bracket (1). The transmission arm (37) is an arc-shaped structure. The transmission arm (37) abuts against the outer wall of the drive motor (2). A support plate (38) is fixedly connected between the support arm three (34) and the support arm four (35). The end of the ball screw (54) away from the wedge block two (53) is rotatably connected to the support plate (38).

4. The electrical equipment operating status detection device according to claim 2, characterized in that: The guide part (4) includes a guide plate (41), which is fixedly connected to the second support arm (33). One end of the guide plate (41) is slidably connected to a slide rod (42), and the end of the slide rod (42) is fixedly connected to a wedge block (43). A spring (44) is elastically connected between the wedge block (43) and the guide plate (41).

5. The electrical equipment operating status detection device according to claim 4, characterized in that: The other end of the guide plate (41) is provided with a groove, and the inner wall of the groove is fixedly connected to a slide rod (45). The slide arm (51) is slidably connected to the inner wall of the groove and slidably sleeved on the slide rod (45). The guide plate (41) is fixedly connected to a guide rod (46).

6. The electrical equipment operating status detection device according to claim 5, characterized in that: The wedge surface of wedge block one (43) abuts against the wedge surface of wedge block two (53), wedge block one (43) abuts against the conductive pad (36), wedge block two (53) contacts the guide plate (41), and one side of nut seat one (56) and nut seat two (57) are slidably sleeved on the guide rod (46).

7. The electrical equipment operating status detection device according to claim 6, characterized in that: The displacement amplification mechanism (6) includes a positioning pin (61), which is fixedly connected to the other side of the nut seat (57). A rocker arm (62) is provided on the positioning pin (61). A sliding hole (63) is provided at one end of the rocker arm (62). The rocker arm (62) is slidably sleeved on the positioning pin (61) through the sliding hole (63). A support pin (64) is provided at one-third of the length of the rocker arm (62). A positioning arm (64) is provided on the support pin (64). 65), the rocker arm (62) is hinged to the positioning arm (65) by the support pin (64), the positioning arm (65) is fixedly connected to the guide rail (66), the guide rail (66) is mounted on the support arm (35), the guide rail (66) is mounted on the displacement sensing component (67), the guide rail (66) is slidably connected to the toothed arm (68), the other end of the rocker arm (62) is fixedly connected to the sector gear (69), the sector gear (69) meshes with the toothed arm (68).

8. The electrical equipment operating status detection device according to claim 7, characterized in that: The displacement sensing component (67) includes a miniature displacement sensor and a micro MCU, signal conditioning circuit, ADC sampling unit, CAN transceiver and voltage regulation protection circuit integrated on the miniature displacement sensor. The movable end of the miniature displacement sensor is fixedly connected to the toothed arm (68).

9. The electrical equipment operating status detection device according to claim 5, characterized in that: The locking part (7) includes a fixed seat (71), which is fixedly connected to the end of the guide rod (46). A torsion spring is provided on the fixed seat (71) and a clip (72) is elastically connected to it through the torsion spring. The clip (72) has an L-shaped structure. The end of the ball screw (54) is provided with a slot (73) that matches the clip (72).

10. The electrical equipment operating status detection device according to claim 9, characterized in that: A first sleeve (74) is fixedly connected to the side of the nut seat (56). A push rod (75) is fixedly connected to the inner wall of the first sleeve (74). A second sleeve (76) is slidably sleeved on the push rod (75). The second sleeve (76) is fixedly connected to the side of the nut seat (57). A pull rope (77) is fixedly connected to the end of the push rod (75) away from the first sleeve (74). The push rod (75) is fixedly connected to one end of the clamp (72) through the pull rope (77).

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