Convenient energy storage wire harness resistance testing device

Abstract

The invention relates to the technical field of wire harness detection, in particular to a convenient energy storage wire harness resistance testing device. Comprising a lower case, the upper end of the lower case is detachably connected with an upper case, two sides of the lower case are provided with two test wires, the tail end of each test wire is detachably connected with a test clamp, the joint of the upper case and the lower case is rotatably connected with an adjusting insulation wheel, the adjusting insulation wheel is provided with a plurality of groups of conductive terminals, and each group comprises two conductive terminals. Each test wire is inserted into the lower case and extends upwards to the interior of the upper case, and every two opposite test wires are communicated through a conductive terminal, so that high-voltage, low-voltage and high-low voltage mixed test modes can be switched according to different detection requirements, additional replacement of equipment or modules is not needed, idling of a detection assembly is avoided, the test efficiency is improved, and the test cost is reduced. The test wire can be automatically retracted and stored, wire abrasion is reduced, the service life is prolonged, and a locking structure is matched to prevent the wire harness from falling off during detection.

Description

Technical Field

[0001] This invention relates to the field of wire harness testing technology, and more specifically, to a convenient device for testing the resistance of energy storage wire harnesses. Background Technology

[0002] Energy storage harnesses play a crucial role in signal and data transmission as well as power supply within the entire energy storage industry chain. Energy storage systems require stable and reliable signal connections, which places very strict requirements on the functionalities of energy storage harnesses, such as high temperature resistance, high voltage resistance, aging resistance, electromagnetic shielding, and flame retardancy.

[0003] Testing the resistance of energy storage harnesses is essential to ensure the three core objectives of safety, performance, and reliability. Energy storage harnesses are responsible for high-voltage and high-current transmission. If the harness resistance increases abnormally, a large amount of heat will be generated when the high current passes through, which can easily lead to the insulation layer aging and burning, causing short circuits or even fires. Therefore, it is necessary to test the resistance of energy storage harnesses.

[0004] The invention patent with announcement number CN115980410B discloses a convenient energy storage harness resistance testing device, including a display, an upper chassis, a lower chassis, high-voltage test leads, low-voltage test leads, high-voltage wire holes, low-voltage wire holes, a station plate, heat dissipation holes, a suction plate, a heat dissipation device for the test piece, and a power supply; the display is located on the surface of the upper chassis; the high-voltage wire holes are located on the side of the lower chassis; the low-voltage wire holes are located below the high-voltage wire holes; the suction plate is located on the bottom left side of the lower chassis; the station plate is located on the right side of the lower chassis; the heat dissipation device includes a cooling fan; the airflow of the cooling fan is directed towards the heat dissipation holes; the heat dissipation holes are located on the upper right side of the upper chassis; the power supply is electrically connected to the cooling fan.

[0005] While this device can facilitate the detection of high and low voltage resistance, in actual production testing scenarios, there may be situations where high voltage or low voltage is measured simultaneously. If the energy storage harnesses to be measured are all high voltage or low voltage, it will cause another high voltage or low voltage test component to be idle, reducing the testing efficiency of the energy storage harness resistance and making it impossible to adjust different test methods according to the actual testing scenario. Summary of the Invention

[0006] This invention provides a convenient energy storage harness resistance testing device. By using different combinations of high-voltage and low-voltage conductors, it enables the simultaneous measurement of both high-voltage and low-voltage energy storage harnesses, thereby solving the problem mentioned in the background art. That is, in actual production testing scenarios, there may be situations where high voltage or low voltage needs to be measured simultaneously. If the energy storage harnesses to be measured are both high-voltage or low-voltage, another high-voltage or low-voltage testing component will be idle, reducing the testing efficiency of the energy storage harness resistance and making it impossible to adjust different testing methods according to the actual testing scenario.

[0007] To achieve the above objectives, a convenient energy storage harness resistance testing device is provided, comprising a lower chassis, an upper chassis detachably connected to the upper end of the lower chassis, two test leads on both sides of the lower chassis, and a test clip detachably connected to the end of each test lead. An adjusting insulating wheel is rotatably connected at the connection between the upper and lower chassis, and multiple sets of conductive terminals are provided on the adjusting insulating wheel, each set consisting of two conductive terminals. Each test lead is inserted into the interior of the lower chassis and extends upward into the interior of the upper chassis. Every two opposing test leads are connected through the conductive terminals. Rotating the adjusting insulating wheel switches the detection mode, enabling simultaneous detection of high-voltage energy storage harnesses and low-voltage energy storage harnesses by all test leads, or detection of high-voltage energy storage harnesses and low-voltage energy storage harnesses by some test leads.

[0008] In the above technical solution, the detection mode can be switched by rotating the adjusting insulating wheel, allowing for different detection modes to be switched in different detection scenarios.

[0009] Based on this, there are at least four groups of conductive terminals. The first group consists of two high-voltage conductive terminals, the second group consists of one high-voltage conductive terminal and one low-voltage conductive terminal, the third group consists of two low-voltage conductive terminals, and the fourth group consists of one low-voltage conductive terminal and one high-voltage conductive terminal, and the arrangement of the high-voltage and low-voltage terminals in the fourth group is opposite to that in the second group.

[0010] In the above technical solution, when it is necessary to test all high-voltage energy storage wire harnesses, rotating the adjusting insulating wheel connects the first set of conductive terminals to the test wires; when testing all low-voltage energy storage wire harnesses, the third set of conductive terminals connects to the test wires; when the second and fourth sets of conductive terminals are connected to the test wires, the high-voltage and low-voltage modes of the two test wire detection channels on the same side can be switched.

[0011] Based on this, a servo motor and a reducer are detachably connected to the bottom inner side of the upper chassis. The servo motor is connected to the reducer for transmission. A meshing gear is detachably connected to the output end of the reducer. A meshing gear ring is detachably connected to the outer wall of the adjusting insulating wheel. The meshing gear ring meshes with the meshing gear. The servo motor has a built-in encoder.

[0012] In the above technical solution, the rotation angle of the servo motor is controlled by an encoder, and then the gearbox reduces the speed and drives the meshing gear to rotate. The meshing of the meshing gear and the meshing ring drives the adjusting insulating wheel to rotate.

[0013] In another technical solution, multiple winding assemblies installed inside the lower chassis are also included, which cause the test lead to have a force that retracts into the lower chassis.

[0014] Based on this, the winding assembly includes a sliding sleeve, an extension rod, a rubber roller, a mounting bracket, and a return spring. Multiple inclined mounting blocks are fixedly connected to the inner wall of the lower housing. A sliding sleeve is detachably connected to each inclined mounting block. An extension rod is slidably connected inside the sliding sleeve. A return spring is provided between the extension rod and the sliding sleeve. A mounting bracket is detachably connected to the end of the extension rod. A rubber roller is embedded inside the mounting bracket. The rubber roller contacts the outer wall of the test lead, causing the test lead to be in a bent state inside the lower housing.

[0015] In the above technical solution, after the test is completed, each test lead is subjected to a force that causes it to retract downwards into the chassis.

[0016] In another technical solution, multiple locking components are also included on the outside of the lower chassis, which can lock each test lead after it is pulled out.

[0017] Based on this, the locking assembly includes a threaded plastic tube, a separation groove, a rotating cap, and an internal threaded ring. The threaded plastic tube is fixedly connected to the outer wall of the lower chassis at the position where each test lead passes through. The test lead passes through the threaded plastic tube. The internal threaded ring is fixedly connected to the inner wall of the rotating cap. The internal threaded ring is threadedly connected to the outer wall of the threaded plastic tube. The threaded plastic tube is provided with multiple separation grooves. By rotating the rotating cap, it moves along the length of the threaded plastic tube, causing the end of the threaded plastic tube to shrink and lock into the outer wall of the test lead.

[0018] In the above technical solution, rotating the rotating cap can reduce the end of the threaded plastic tube, thereby fixing the test wire.

[0019] Based on this, the outer walls of the upper and lower chassis are provided with multiple heat dissipation slots, the bottom of the inner side of the upper chassis is provided with multiple cooling fans, the bottom of the upper chassis below each cooling fan is connected to the lower chassis, and a temperature sensor is provided on the top of the inner side of the upper chassis.

[0020] Based on this, multiple insulating honeycomb plates are installed on the adjusting insulating wheel, and the insulating honeycomb plates are made of ceramic material.

[0021] In the above technical solution, the insulating honeycomb panel can increase the heat dissipation effect of the conductive terminals when the cooling fan is started; the ceramic material of the insulating honeycomb panel can provide better heat conduction while maintaining insulation.

[0022] Based on this, the bottom of the lower chassis is detachably connected to four corners with self-locking casters, a handle is provided on one side of the outer wall of the lower chassis, and a display screen is provided on the outer wall of the upper chassis.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. This convenient energy storage harness resistance testing device can switch between high voltage, low voltage and high-low voltage mixed testing modes according to different testing needs, without the need to replace additional equipment or modules, thus avoiding idle testing components and improving testing efficiency.

[0025] 2. In this convenient energy storage harness resistance testing device, the test leads can be automatically retracted and stored, reducing wear and extending service life. Combined with a locking structure to prevent the harness from falling off during testing, the reliability of the testing process is further improved. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a top view of the structure of the present invention;

[0028] Figure 3 This is a side view of the structure of the present invention;

[0029] Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure along direction A in the middle;

[0030] Figure 5 This is a front view structural diagram of the present invention;

[0031] Figure 6 For the present invention Figure 5 Schematic diagram of the cross-sectional structure in the B direction;

[0032] Figure 7 This is a schematic diagram of the internal structure of the upper chassis of the present invention;

[0033] Figure 8 This is a schematic diagram of the locking assembly structure of the present invention.

[0034] The meanings of the labels in the diagram are as follows:

[0035] 100. Lower chassis; 101. Upper chassis; 102. Display screen; 103. Test clip; 104. Self-locking casters; 105. Heat dissipation slots; 106. Test leads; 107. Handle; 108. Tilt mounting block; 109. Temperature sensor; 110. Cooling fan;

[0036] 200. Adjusting insulating wheel; 201. Conductive terminal; 202. Meshing gear ring; 203. Insulating honeycomb panel; 204. Meshing gear; 205. Reducer; 206. Servo motor;

[0037] 300. Sliding sleeve; 301. Return spring; 302. Extending rod; 303. Mounting bracket; 304. Rubber roller;

[0038] 400. Locking assembly; 401. Threaded plastic tube; 402. Separation groove; 403. Rotary cap; 404. Internal threaded ring. Detailed Implementation

[0039] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0040] In actual production testing scenarios, there may be situations where high voltage or low voltage is measured simultaneously. If the energy storage harnesses to be measured are all high voltage or low voltage, it will cause another high voltage or low voltage test component to be idle, reducing the testing efficiency of the energy storage harness resistance and making it impossible to adjust different test methods according to the actual test scenario.

[0041] Therefore, in view of the above-mentioned problems, the present invention provides a convenient energy storage harness resistance testing device, such as... Figure 1-2 As shown, the device includes a lower housing 100, an upper housing 101 detachably connected to the upper end of the lower housing 100, two test leads 106 on both sides of the lower housing 100, and a test clip 103 detachably connected to the end of each test lead 106. Self-locking casters 104 are detachably connected to the four corners of the bottom of the lower housing 100. Multiple heat dissipation slots 105 are provided on the outer walls of the upper housing 101 and the lower housing 100. A handle 107 is provided on one side of the outer wall of the lower housing 100, and a display screen 102 is provided on the outer wall of the upper housing 101. In this embodiment, the resistance of the energy storage harness is detected by connecting the test clip 103 to the energy storage harness. The test result of the resistance of the energy storage harness is displayed on the display screen 102. The internal heat is dissipated through the heat dissipation slots 105. The handle 107 facilitates the movement of the device. The self-locking casters 104 enable the lower housing 100 to move and lock in a designated position.

[0042] like Figure 4As shown, an adjusting insulating wheel 200 is rotatably connected at the connection between the upper housing 101 and the lower housing 100. The adjusting insulating wheel 200 is equipped with multiple sets of conductive terminals 201, with two terminals in each set. Each test lead 106 is inserted into the lower housing 100 and extends upwards into the upper housing 101. Every two opposing test leads 106 are connected through conductive terminals 201. There are at least four sets of conductive terminals 201: the first set consists of two high-voltage conductive terminals 201; the second set consists of one high-voltage conductive terminal 201 and one low-voltage conductive terminal 201; the third set consists of two low-voltage conductive terminals 201; and the fourth set... Composed of a low-voltage conductive terminal 201 and a high-voltage conductive terminal 201, and arranged in the opposite position to the second group of high-voltage and low-voltage terminals, in this embodiment, when it is necessary to test all high-voltage energy storage wire harnesses, the adjusting insulating wheel 200 is rotated to connect the first group of conductive terminals 201 with the test wire 106; when it is necessary to test all low-voltage energy storage wire harnesses, the third group of conductive terminals 201 is connected with the test wire 106; when the second and fourth groups of conductive terminals 201 are connected with the test wire 106, the high-voltage and low-voltage modes of the two test wire 106 detection channels on the same side can be switched, thereby enabling free switching according to the actual detection scenario.

[0043] Heat is generated during the detection process of conductive terminal 201. In order to dissipate the heat from the lower chassis 100 and the upper chassis 101, the specific structure can be as follows: Figure 4 In the embodiment shown, a plurality of cooling fans 110 are provided on the bottom inner side of the upper chassis 101. The bottom of the upper chassis 101 below each cooling fan 110 is connected to the lower chassis 100. A temperature sensor 109 is provided on the top inner side of the upper chassis 101. In this embodiment, based on the temperature detected by the temperature sensor 109 inside the upper chassis 101 and the lower chassis 100, different numbers of cooling fans 110 are selected to be turned on, thereby dissipating the heat inside the lower chassis 100 and the upper chassis 101 to the outside, and avoiding severe overheating of the conductive terminal 201 during long-term detection.

[0044] like Figure 5-6 As shown, multiple insulating honeycomb plates 203 are provided on the adjusting insulating wheel 200. The insulating honeycomb plates 203 are made of ceramic material. In this embodiment, the insulating honeycomb plates 203 can increase the heat dissipation effect of the conductive terminal 201 when the cooling fan 110 is started. The ceramic material of the insulating honeycomb plates 203 can play a better heat conduction effect while insulating, further improving the heat dissipation effect.

[0045] To enable the adjusting insulating wheel 200 to rotate and adjust different detection modes, the specific structure can be as follows: Figure 7In the illustrated embodiment, a servo motor 206 and a reducer 205 are detachably connected to the bottom inner side of the upper housing 101. The servo motor 206 and the reducer 205 are connected in a transmission connection. A meshing gear 204 is detachably connected to the output end of the reducer 205. A meshing gear ring 202 is detachably connected to the outer wall of the adjusting insulating wheel 200. The meshing gear ring 202 meshes with the meshing gear 204. The servo motor 206 has a built-in encoder. In this embodiment, the encoder controls the rotation angle of the servo motor 206, which, in conjunction with the reducer 205, drives the meshing gear 204 to rotate. The meshing of the meshing gear 204 and the meshing gear ring 202 drives the adjusting insulating wheel 200 to rotate, thereby enabling the adjustment of different detection modes.

[0046] After the test is completed, the test lead 106 needs to be wound up and fixed. In order to enable the test lead 106 to have automatic retraction force, the specific structure can be as follows: Figure 4 In the illustrated embodiment, a plurality of inclined mounting blocks 108 are fixedly connected to the inner wall of the lower housing 100. A sliding sleeve 300 is detachably connected to each inclined mounting block 108. An extension rod 302 is slidably connected inside the sliding sleeve 300. A return spring 301 is provided between the extension rod 302 and the sliding sleeve 300. A mounting bracket 303 is detachably connected to the end of the extension rod 302. A rubber roller 304 is embedded inside the mounting bracket 303. The rubber roller 304 contacts the outer wall of the test lead 106, causing the test lead 106 to be in a bent state inside the lower housing 100. In this embodiment, during testing, the test lead 106 is stretched outward, which causes the rubber roller 304 to rotate and the extension rod 302 to retract into the sliding sleeve 300. During the retraction process, the return spring 301 is compressed, thereby enabling each test lead 106 to have a force to retract into the lower housing 100 after the test is completed, making it easier to store the test lead 106.

[0047] Because the reset spring 301 continuously applies tension to the test lead 106, it can easily cause the test lead 106 to detach from the energy storage harness during testing. To solve this problem, a specific structure can be adopted as follows: Figure 8In the embodiment shown, a locking assembly 400 is provided on the outer wall of the lower housing 100 at the position of each test lead 106. The locking assembly 400 includes a threaded plastic tube 401, a separation groove 402, a rotating cap 403, and an internal threaded ring 404. The threaded plastic tube 401 is fixedly connected to the outer wall of the lower housing 100 at the position where each test lead 106 passes through. The test lead 106 passes through the threaded plastic tube 401. The internal threaded ring 404 is fixedly connected to the inner wall of the rotating cap 403. The internal threaded ring 404 and the... The outer wall of the threaded plastic tube 401 is threaded. The threaded plastic tube 401 is provided with multiple separation grooves 402. By rotating the rotating cap 403, it can be moved along the length direction of the threaded plastic tube 401, so that the end of the threaded plastic tube 401 is reduced and locked on the outer wall of the test lead 106. In this embodiment, after the test lead 106 extends outward, rotating the rotating cap 403 can reduce the end of the threaded plastic tube 401, thereby fixing the test lead 106 and preventing the energy storage wire harness from falling off the test clip 103 during testing.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A convenient energy storage harness resistance testing device, comprising a lower housing (100), an upper housing (101) detachably connected to the upper end of the lower housing (100), and two test leads (106) arranged on both sides of the lower housing (100), each test lead (106) having a test clip (103) detachably connected to its end, characterized in that: An adjusting insulating wheel (200) is rotatably connected at the connection between the upper chassis (101) and the lower chassis (100). The adjusting insulating wheel (200) is provided with multiple sets of conductive terminals (201), each set of conductive terminals (201) consists of two. Each test lead (106) is inserted into the interior of the lower chassis (100) and extends upward to the interior of the upper chassis (101). Every two opposite test leads (106) are connected through the conductive terminals (201). Rotating the adjusting insulating wheel (200) switches the detection mode, enabling all test leads (106) to simultaneously detect the high-voltage energy storage harness and simultaneously detect the low-voltage energy storage harness, or some test leads (106) to detect the high-voltage energy storage harness and some to detect the low-voltage energy storage harness.

2. The convenient energy storage harness resistance testing device according to claim 1, characterized in that: The conductive terminals (201) are in at least four groups. The first group consists of two high-voltage conductive terminals (201), the second group consists of one high-voltage conductive terminal (201) and one low-voltage conductive terminal (201), the third group consists of two low-voltage conductive terminals (201), and the fourth group consists of one low-voltage conductive terminal (201) and one high-voltage conductive terminal (201), and the arrangement of the high-voltage and low-voltage terminals in the fourth group is opposite to that in the second group.

3. The convenient energy storage harness resistance testing device according to claim 1, characterized in that: A servo motor (206) and a reducer (205) are detachably connected to the bottom inner side of the upper chassis (101). The servo motor (206) is connected to the reducer (205) in a transmission connection. The output end of the reducer (205) is detachably connected to a meshing gear (204). The outer wall of the adjusting insulating wheel (200) is detachably connected to a meshing gear ring (202). The meshing gear ring (202) meshes with the meshing gear (204). The servo motor (206) has a built-in encoder.

4. The convenient energy storage harness resistance testing device according to claim 1, characterized in that: It also includes multiple winding assemblies installed inside the lower housing (100), which cause the test lead (106) to have a force that retracts into the lower housing (100).

5. The convenient energy storage harness resistance testing device according to claim 4, characterized in that: The winding assembly includes a sliding sleeve (300), an extension rod (302), a rubber roller (304), a mounting bracket (303), and a return spring (301). Multiple inclined mounting blocks (108) are fixedly connected to the inner wall of the lower housing (100). A sliding sleeve (300) is detachably connected to each inclined mounting block (108). An extension rod (302) is slidably connected inside the sliding sleeve (300). A return spring (301) is provided between the extension rod (302) and the sliding sleeve (300). A mounting bracket (303) is detachably connected to the end of the extension rod (302). A rubber roller (304) is embedded inside the mounting bracket (303). The rubber roller (304) contacts the outer wall of the test lead (106), causing the test lead (106) to be bent inside the lower housing (100).

6. The convenient energy storage harness resistance testing device according to claim 4 or 5, characterized in that: It also includes multiple locking components located outside the lower chassis (100), which can lock each test lead (106) after it is pulled out.

7. The convenient energy storage harness resistance testing device according to claim 6, characterized in that: The locking assembly (400) includes a threaded plastic tube (401), a separation groove (402), a rotating cap (403), and an internal threaded ring (404). The threaded plastic tube (401) is fixedly connected to the outer wall of the lower housing (100) at the position where each test lead (106) passes through. The test lead (106) passes through the threaded plastic tube (401). The internal threaded ring (404) is fixedly connected to the inner wall of the rotating cap (403). The internal threaded ring (404) is threadedly connected to the outer wall of the threaded plastic tube (401). The threaded plastic tube (401) is provided with multiple separation grooves (402). Rotating the rotating cap (403) causes it to move along the length of the threaded plastic tube (401), causing the end of the threaded plastic tube (401) to shrink and lock into the outer wall of the test lead (106).

8. The convenient energy storage harness resistance testing device according to claim 1, characterized in that: The outer walls of the upper chassis (101) and the lower chassis (100) are provided with multiple heat dissipation slots (105). The bottom inner side of the upper chassis (101) is provided with multiple cooling fans (110). The bottom of the upper chassis (101) below each cooling fan (110) is connected to the lower chassis (100). The top inner side of the upper chassis (101) is provided with a temperature sensor (109).

9. The convenient energy storage harness resistance testing device according to claim 8, characterized in that: Multiple insulating honeycomb panels (203) are provided on the adjusting insulating wheel (200), and the insulating honeycomb panels (203) are made of ceramic material.

10. The convenient energy storage harness resistance testing device according to claim 1, characterized in that: The bottom of the lower chassis (100) is detachably connected to four corners of self-locking casters (104), and a handle (107) is provided on one side of the outer wall of the lower chassis (100). The outer wall of the upper chassis (101) is provided with a display screen (102).

Images