A high-voltage wire harness temperature rise testing device for an electric vehicle

Abstract

The utility model relates to harness detection technical field, concretely is a kind of electric automobile high pressure harness temperature rise testing device.The utility model, including harness temperature rise tester, the surface of harness temperature rise tester is equipped with operating panel, the surface of operating panel is equipped with screen, the lower surface of harness temperature rise tester is equipped with support device, support device includes recess, recess is opened in the lower surface of harness temperature rise tester, the inner wall of recess is fixedly connected with long rod, the camber surface of long rod is rotatably connected with support frame, the surface of support frame is equipped with several limit slots, the inner wall of recess is fixedly connected with round bar, the camber surface of round bar is rotatably connected with rotary drum.The support device of conventional fixed height in harness temperature rise tester cannot adapt to the demand of different height operators, make operator long-term keep bending, lifting hand and other unnatural operation posture, easily cause neck stiffness, shoulder strain, waist sore and other occupational health problems.

Description

Technical Field

[0001] This utility model relates to the field of wiring harness testing technology, and in particular to a temperature rise testing device for high-voltage wiring harnesses in electric vehicles. Background Technology

[0002] The electric vehicle high-voltage wiring harness temperature rise test device is a professional testing equipment used to detect the temperature rise of electric vehicle high-voltage wiring harnesses under energized conditions due to factors such as resistance loss and contact resistance caused by current flow. Its core purpose is to evaluate the heating characteristics, heat dissipation performance, and safety of high-voltage wiring harnesses, ensuring that the wiring harnesses will not cause insulation aging, short circuits, or other faults due to overheating during long-term use, and guaranteeing the stable operation of the electric vehicle's electrical system. In the current era of rapid development of electric vehicle technology, high-voltage wiring harnesses are key components for power transmission and electrical control, and their performance directly affects the safety and reliability of vehicle operation. Currently, most devices used for high-voltage wiring harness temperature rise testing in electric vehicles have relatively fixed and simple support structures. These devices often cannot flexibly adjust the angle and height of the testing device according to different specifications and layouts of high-voltage wiring harnesses and the actual needs of operators. During operation, operators often have to maintain poor postures such as bending over and raising their arms for a long time due to the poor device position, which increases the muscle burden on the neck, shoulders, and waist, easily causing occupational injuries, and also reducing work comfort and sustainability.

[0003] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the traditional fixed-height support device in the wire harness temperature rise tester cannot meet the needs of operators of different heights, causing operators to maintain unnatural operating postures such as bending over and raising their hands for a long time, which can easily lead to occupational health problems such as neck stiffness, shoulder strain, and lower back pain; therefore, in order to address the above problems, a high-voltage wire harness temperature rise test device for electric vehicles is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where traditional fixed-height support devices in wire harness temperature rise testers cannot meet the needs of operators of different heights, causing operators to maintain unnatural operating postures such as bending over and raising their arms for extended periods, which can easily lead to occupational health problems such as neck stiffness, shoulder strain, and lower back pain. Therefore, this invention proposes a temperature rise test device for high-voltage wire harnesses in electric vehicles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-voltage wiring harness temperature rise testing device for electric vehicles, comprising a wiring harness temperature rise tester, an operation panel mounted on the surface of the wiring harness temperature rise tester, a screen on the surface of the operation panel, a support device on the lower surface of the wiring harness temperature rise tester, the support device comprising a groove, the groove being formed on the lower surface of the wiring harness temperature rise tester, a long rod fixedly connected to the inner wall of the groove, a support frame rotatably connected to the arc surface of the long rod, a plurality of limiting grooves being formed on the surface of the support frame, a round rod fixedly connected to the inner wall of the groove, a rotating cylinder rotatably connected to the arc surface of the round rod, a connecting plate fixedly connected to the arc surface of the rotating cylinder, a support rod fixedly connected to one side of the connecting plate, and the arc surface of the support rod slidably connected to the limiting groove.

[0006] The aforementioned components achieve the following effects: by setting up a support device, the angle and height of the wire harness temperature rise tester can be adjusted. The support frame can rotate around the long rod. The rotating cylinder, connecting plate, and support rod, together with the limiting groove, can fix the wire harness temperature rise tester at multiple angles, forming a stable triangular support structure. This enhances the stability of the tester when it is placed, keeps the tester within a comfortable operating range, and eliminates the need for workers to maintain poor postures such as bending over or raising their arms for extended periods. This effectively reduces the muscle burden on the neck, shoulders, and waist, improving work comfort and sustainability.

[0007] Preferably, an anti-slip pad is fixedly connected to the inner wall of the limiting groove, and the surface of the anti-slip pad is slidably connected to the support rod. The anti-slip pad is made of rubber.

[0008] The effect achieved by the above components is as follows: by setting the anti-slip pad, the rubber anti-slip pad has excellent friction. When the support rod is inserted into the limiting groove, the anti-slip pad fits tightly with the support rod, which can effectively increase the friction between the support rod and the limiting groove, and further strengthen the stability of the triangular support structure.

[0009] Preferably, a socket is provided on one side of the support frame, and a fixing rod is slidably inserted into the wire harness temperature rise tester. The arc surface of the fixing rod is slidably connected to the socket, and a pull plate is fixedly connected to one end of the fixing rod.

[0010] The aforementioned components achieve the following effect: they can be folded up and fixed to the support frame and support rod. After the support device is folded up, the support frame, support rod and other components fit into the bottom of the wire harness temperature rise tester, greatly reducing the overall volume. Whether stored in a fixed location in the laboratory or during handling and transportation, it can effectively save space and is easy to store, organize and carry.

[0011] Preferably, a spring is fitted onto the arc surface of the fixing rod, and the two ends of the spring are fixedly connected to the wire harness temperature rise tester and the pull plate, respectively.

[0012] The aforementioned components achieve the following effect: under the action of the spring, the pull plate and the fixing rod are automatically pushed back to their original positions. When the spring is in a compressed state, a continuous pushing force is applied to the fixing rod in the direction of the insertion hole, ensuring that the fixing rod is tightly inserted into the insertion hole. This simplifies the operation process and improves the stability of the device.

[0013] Preferably, the surface of the control panel is provided with a protective device, which includes two fixed plates, both of which are fixedly connected to the surface of the control panel. A rotating shaft is fixedly connected to one side of the two fixed plates that are close to each other. A protective cover is rotatably connected to the arc surface of the rotating shaft. A limit plate is fixedly connected to the surface of the protective cover. A through hole is opened on the surface of the limit plate. A support plate is fixedly connected to the surface of the control panel. A threaded rod is threaded into the support plate. The threaded rod is threadedly connected to the inner wall of the through hole in the limit plate. A rotating plate is fixedly connected to one end of the threaded rod.

[0014] The effect achieved by the above-mentioned components is as follows: by setting up a protective device, the protective cover can cover the surface of the screen when the wire harness temperature rise tester is not used, forming a physical barrier to isolate the screen from the outside world. This effectively prevents sharp objects from scratching the screen surface, prevents the screen from breaking or scratching due to collision or squeezing, ensures the normal display function of the screen, and extends the service life of the screen.

[0015] Preferably, the arc surface of the rotating shaft is fitted with two torsion springs, and the two ends of the torsion springs are fixedly connected to the fixing plate and the protective cover, respectively.

[0016] The aforementioned components achieve the following effect: under the action of the torsion spring, the protective cover can automatically rotate upward and be fixed at a preset angle, eliminating the need for manual opening and greatly improving operational efficiency.

[0017] Preferably, a limiting rod is fixedly connected to one side of the limiting plate, and one end of the limiting rod is slidably connected to the operation panel.

[0018] The effect achieved by the above components is that by setting the limiting rod, a precise guide is provided for the closing of the protective cover, making it easier to accurately align the perforation and threaded rod when closing the protective cover, and making the fixing operation more convenient and efficient.

[0019] 1. In this utility model, by setting a support device, the angle and height of the wire harness temperature rise tester can be adjusted. The support frame can rotate around the long rod. The rotating cylinder, connecting plate and support rod cooperate with the limiting groove to fix the wire harness temperature rise tester at multiple angles, forming a stable triangular support structure. This enhances the stability of the tester when it is placed, keeps the tester in a comfortable operating range, and eliminates the need for workers to maintain poor postures such as bending over or raising their arms for a long time. This effectively reduces the muscle burden on the neck, shoulders and waist, and improves work comfort and sustainability.

[0020] 2. In this utility model, by setting a protective device, the protective cover can cover the surface of the screen when the wire harness temperature rise tester is not used, forming a physical barrier to isolate the screen from the outside world. This effectively prevents sharp objects from scratching the screen surface, prevents the screen from breaking or scratching due to collision or squeezing, ensures the normal display function of the screen, and extends the service life of the screen. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the support device in this utility model; Figure 3 This is a partial structural schematic diagram of the support device in this utility model; Figure 4 This is a partial structural diagram of the support device in this utility model; Figure 5 This is a schematic diagram of the protective device in this utility model; Figure 6 In this utility model Figure 5 Enlarged view of point A; Figure 7 This is a partial structural schematic diagram of the protective device in this utility model.

[0022] Legend: 1. Wire harness temperature rise tester; 2. Operation panel; 3. Screen; 4. Support device; 401. Groove; 402. Long rod; 403. Support frame; 404. Round rod; 405. Rotary cylinder; 406. Connecting plate; 407. Support rod; 408. Limiting groove; 409. Anti-slip pad; 410. Insertion hole; 411. Fixing rod; 412. Pull plate; 413. Spring; 5. Protective device; 51. Fixing plate; 52. Rotating shaft; 53. Protective cover; 54. Limiting plate; 55. Support plate; 56. Threaded rod; 57. Rotating plate; 58. Torsion spring; 59. Limiting rod. Detailed Implementation

[0023] Reference Figure 1 , Figure 2 and 5As shown, this utility model provides a technical solution: a high-voltage wiring harness temperature rise testing device for electric vehicles, including a wiring harness temperature rise tester 1. An operation panel 2 is mounted on the surface of the wiring harness temperature rise tester 1, and a screen 3 is provided on the surface of the operation panel 2. A support device 4 is provided on the lower surface of the wiring harness temperature rise tester 1. By setting the support device 4, the angle and height of the wiring harness temperature rise tester 1 can be adjusted. The support frame 403 can rotate around the long rod 402. The rotating cylinder 405, connecting plate 406, and support rod 407, in conjunction with the limiting groove 408, can fix the wiring harness temperature rise tester 1 at multiple angles, forming a stable triangular support structure, enhancing the stability of the tester during placement. The stability of the tester ensures that it operates within a comfortable range, eliminating the need for staff to maintain poor postures such as bending over or raising their arms for extended periods. This effectively reduces muscle strain on the neck, shoulders, and lower back, improving work comfort and sustainability. The surface of the control panel 2 is equipped with a protective device 5. By setting the protective device 5, when the wire harness temperature rise tester 1 is not in use, the protective cover 53 can cover the surface of the screen 3, forming a physical barrier that isolates the screen 3 from the outside world. This effectively prevents sharp objects from scratching the surface of the screen 3, preventing the screen 3 from breaking or getting scratched due to collisions or pressure, ensuring the normal display function of the screen 3, and extending the service life of the screen 3.

[0024] The specific setup and function of its support device 4 and protective device 5 will be explained below.

[0025] Reference Figure 2 , Figure 3 and Figure 4As shown in this embodiment: the support device 4 includes a groove 401, which is formed on the lower surface of the wire harness temperature rise tester 1. A long rod 402 is fixedly connected to the inner wall of the groove 401. A support frame 403 is rotatably connected to the arc surface of the long rod 402. A plurality of limiting grooves 408 are formed on the surface of the support frame 403. A round rod 404 is fixedly connected to the inner wall of the groove 401. A rotating cylinder 405 is rotatably connected to the arc surface of the round rod 404. A connecting plate 406 is fixedly connected to the arc surface of the rotating cylinder 405. A support rod 407 is fixedly connected to one side of the connecting plate 406. The arc surface of the support rod 407 is slidably connected to the limiting groove 408. An anti-slip pad 409 is fixedly connected to the inner wall of the limiting groove 408. The surface of the anti-slip pad 409 is slidably connected to the support rod 407. The anti-slip pad 409 is made of rubber. By setting the anti-slip pad 409, the rubber anti-slip pad 409 has excellent friction. When the support rod 407 is inserted into the limiting groove 408, the anti-slip pad 409 is tightly attached to the support rod 407, which can effectively increase the friction between the support rod 407 and the limiting groove 408, further reinforcing the triangular support structure. To ensure stability, a socket 410 is provided on one side of the support frame 403. A fixing rod 411 is slidably inserted into the wire harness temperature rise tester 1. The arc surface of the fixing rod 411 is slidably connected to the socket 410. A pull plate 412 is fixedly connected to one end of the fixing rod 411, which achieves the effect of retracting and fixing components such as the support frame 403 and the support rod 407. After the support device 4 is retracted, the support frame 403, the support rod 407 and other components are attached to the bottom of the wire harness temperature rise tester 1, which greatly reduces the overall volume. This is beneficial whether the device is stored in a fixed position in the laboratory or during handling and transportation. During the process, space is effectively saved, making it easy to store, organize, and carry. The arc surface of the fixing rod 411 is fitted with a spring 413. The two ends of the spring 413 are fixedly connected to the wire harness temperature rise tester 1 and the pull plate 412, respectively. Under the action of the spring 413, the pull plate 412 and the fixing rod 411 are automatically pushed back to their original positions. When the spring 413 is in a compressed state, a pushing force is continuously applied to the fixing rod 411 in the direction of the insertion hole 410, ensuring that the fixing rod 411 is tightly inserted into the insertion hole 410. This simplifies the operation process and improves the stability of the device.

[0026] Reference Figure 5 , Figure 6 and Figure 7As shown, specifically, the protective device 5 includes two fixed plates 51, both of which are fixedly connected to the surface of the operating panel 2. A rotating shaft 52 is fixedly connected to one side of the two fixed plates 51 that is close to each other. A protective cover 53 is rotatably connected to the arc surface of the rotating shaft 52. A limit plate 54 is fixedly connected to the surface of the protective cover 53. A through hole is provided on the surface of the limit plate 54. A support plate 55 is fixedly connected to the surface of the operating panel 2. A threaded rod 56 is threaded into the support plate 55. The threaded rod 56 is threadedly connected to the inner wall of the through hole in the limit plate 54. A rotating plate 57 is fixedly connected to one end of the threaded rod 56. The arc surface of the rotating shaft 52... The cover has two torsion springs 58, with the two ends of the torsion springs 58 fixedly connected to the fixing plate 51 and the protective cover 53 respectively. Under the force of the torsion springs 58, the protective cover 53 can automatically rotate upward and be fixed at a preset angle, eliminating the need for manual opening and greatly improving operating efficiency. A limit rod 59 is fixedly connected to one side of the limiting plate 54, and one end of the limit rod 59 is slidably connected to the operation panel 2. By setting the limit rod 59, the closing of the protective cover 53 is precisely guided, making it easy to accurately align the perforation and threaded rod 56 when closing the protective cover 53, making the fixing operation more convenient and efficient.

[0027] Working principle: During the test preparation phase, when it is necessary to unfold the support device 4 and adjust the wire harness temperature rise meter to a suitable angle and height for the operator's work, the operator first pulls the pull plate 412. Since one end of the fixed rod 411 is fixedly connected to the pull plate 412, and the other end is inserted into the insertion hole 410 of the support frame 403, pulling the pull plate 412 will cause the fixed rod 411 to overcome the elastic force of the spring 413 and be pulled out of the insertion hole 410. At this time, the locking restriction on the support frame 403 is released. Subsequently, the operator can rotate the support frame 403. Because the support frame 403 is rotatably connected to the long rod 402, it can rotate about the long rod 402 as an axis. During the rotation of the support frame 403, the rotating drum 405 rotates on the arc surface of the round rod 404. The rotating drum 405 drives the connecting plate 406, which in turn drives the support rod 407 to move. When the support frame 403 rotates to an angle suitable for the operator's work, the support rod 407 will align with the limiting groove 408 on the surface of the support frame 403. At this time, the support rod 407 is slid into the limiting groove 408. Since the inner wall of the limiting groove 408 is fixed with a rubber anti-slip pad 409, the anti-slip pad 409 has a large friction force, which can effectively prevent the support rod 407 from sliding in the limiting groove 408, forming a stable triangular support structure, thereby achieving... To fix the angle of the support frame 403, when the test is completed and the support device 4 needs to be stored, the operator pulls the pull plate 412 again to slide the support rod 407 out of the limiting groove 408. Then, the support frame 403 is rotated inward around the long rod 402. During the rotation, the rotating cylinder 405, the connecting plate 406, and the support rod 407 also move accordingly, eventually retracting the support frame 403 into the groove 401. After releasing the pull plate 412, the spring 413 pushes the fixing rod 411 to re-insert into the insertion hole 410 and continuously applies a pushing force towards the insertion hole 410 to the fixing rod 411, fixing the support frame 403 in the stored state and reducing the test device's... The overall size of the device facilitates its handling, storage, and transportation. By setting up the support device 4, the angle and height of the wire harness temperature rise tester 1 can be adjusted. The support frame 403 can rotate around the long rod 402. The rotating cylinder 405, connecting plate 406, and support rod 407, together with the limiting groove 408, can fix the wire harness temperature rise tester 1 at multiple angles, forming a stable triangular support structure. This enhances the stability of the tester when it is placed, keeps the tester within a comfortable operating range, and eliminates the need for workers to maintain poor postures such as bending over or raising their arms for extended periods. This effectively reduces the muscle burden on the neck, shoulders, and waist, improving work comfort and sustainability.

[0028] Working principle: When the operation panel 2 is needed, the operator rotates the rotating plate 57, causing the threaded rod 56 to rotate within the support plate 55. Since the threaded rod 56 is threadedly connected to the inner wall of the through hole in the limiting plate 54, as the threaded rod 56 rotates, it gradually exits from the through hole in the limiting plate 54, releasing the constraint on the limiting plate 54 and thus loosening the fixation on the protective cover 53. At this time, the two torsion springs 58 sleeved on the arc surface of the rotating shaft 52 begin to function. The two ends of the torsion springs 58 are respectively connected to the fixed plate 51 and the protective cover 53. The cover 53 is fixedly connected. When the cover 53 is closed, the torsion spring 58 is in a compressed and stored state, storing elastic potential energy. When the threaded rod 56 is released from its constraint, the torsion spring 58 releases its elastic potential energy, generating an upward torsional force that drives the cover 53 to rotate upward around the shaft 52 and fix it at a preset angle. After the test, when the cover 53 needs to be closed, the operator manually rotates the cover 53 downward so that it covers the surface of the operating panel 2. When the cover 53 completely covers the operating panel 2, the limit rod 5... 9 will press against the surface of the operation panel 2, providing precise guidance for the closing of the protective cover 53. When the protective cover 53 closes, the threaded rod 56 is accurately aligned with the through hole on the limit plate 54, making the fixing operation more convenient and efficient. The operator rotates the rotating plate 57, which drives the threaded rod 56 to rotate, so that it is gradually screwed into the through hole of the limit plate 54. As the threaded rod 56 is continuously screwed in, the threaded rod 56 generates a downward pulling force on the limit plate 54, thereby making the protective cover 53 tightly fit against the surface of the operation panel 2. At this time, the torsion spring 58 is compressed again during the downward rotation of the protective cover 53, and restores elastic potential energy, preparing for the next opening of the protective cover 53. By setting the protective device 5, the protective cover 53 can cover the surface of the screen 3 when the wire harness temperature rise tester 1 is not used, forming a physical barrier to isolate the screen 3 from the outside world. It can effectively prevent sharp objects from scratching the surface of the screen 3, prevent the screen 3 from breaking or scratching due to collision or squeezing, ensure the normal display function of the screen 3, and extend the service life of the screen 3.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A high-voltage wiring harness temperature rise testing device for electric vehicles, comprising a wiring harness temperature rise tester, characterized in that: The wire harness temperature rise tester has an operation panel mounted on its surface, and a screen on its surface. A support device is provided on the lower surface of the wire harness temperature rise tester. The support device includes a groove formed on the lower surface of the wire harness temperature rise tester. A long rod is fixedly connected to the inner wall of the groove. A support frame is rotatably connected to the arc surface of the long rod. Several limiting grooves are formed on the surface of the support frame. A round rod is fixedly connected to the inner wall of the groove. A rotating cylinder is rotatably connected to the arc surface of the round rod. A connecting plate is fixedly connected to the arc surface of the rotating cylinder. A support rod is fixedly connected to one side of the connecting plate. The arc surface of the support rod is slidably connected to the limiting groove.

2. The electric vehicle high-voltage wiring harness temperature rise testing device according to claim 1, characterized in that: An anti-slip pad is fixedly connected to the inner wall of the limiting groove. The surface of the anti-slip pad is slidably connected to the support rod. The anti-slip pad is made of rubber.

3. The electric vehicle high-voltage wiring harness temperature rise testing device according to claim 1, characterized in that: The support frame has an insertion hole on one side, and a fixing rod is slidably inserted into the wire harness temperature rise tester. The arc surface of the fixing rod is slidably connected to the insertion hole, and a pull plate is fixedly connected to one end of the fixing rod.

4. The electric vehicle high-voltage wiring harness temperature rise testing device according to claim 3, characterized in that: The arc surface of the fixing rod is fitted with a spring, and the two ends of the spring are respectively fixedly connected to the wire harness temperature rise tester and the pull plate.

5. The electric vehicle high-voltage wiring harness temperature rise testing device according to claim 1, characterized in that: The surface of the control panel is provided with a protective device, which includes two fixing plates. Both fixing plates are fixedly connected to the surface of the control panel. A rotating shaft is fixedly connected to one side of the two fixing plates that are close to each other. A protective cover is rotatably connected to the arc surface of the rotating shaft. A limit plate is fixedly connected to the surface of the protective cover. A through hole is opened on the surface of the limit plate. A support plate is fixedly connected to the surface of the control panel. A threaded rod is threaded into the support plate. The threaded rod is threaded to the inner wall of the through hole in the limit plate. A rotating plate is fixedly connected to one end of the threaded rod.

6. The electric vehicle high-voltage wiring harness temperature rise testing device according to claim 5, characterized in that: The rotating shaft has two torsion springs fitted on its arc surface, and the two ends of the torsion springs are fixedly connected to the fixing plate and the protective cover, respectively.

7. The electric vehicle high-voltage wiring harness temperature rise testing device according to claim 5, characterized in that: A limiting rod is fixedly connected to one side of the limiting plate, and one end of the limiting rod is slidably connected to the operation panel.

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