New energy automobile contactor copper bar surface oxidation detection device

Abstract

The utility model relates to the technical field of oxidation detection devices, in particular to a new energy automobile contactor copper bar surface oxidation detection device which comprises a detection machine table and a display controller, the top end of the detection machine table is fixedly connected with the display controller, and a dovetail groove is formed in the inner side of the upper end of the detection machine table. A movable power connection assembly is slidably connected to the inner side of a dovetail groove formed in the detection machine table, a sealing cover is spirally attached to the outer side of the movable power connection assembly, the inner side of the movable power connection assembly is slidably connected to the outer side of the environment control assembly, a contactor copper bar body is installed on the inner side of the movable power connection assembly, and the movable power connection assembly comprises a movable cylinder. The bottom end of the movable cylinder is fixedly connected with a dovetail sliding block, one side of the movable cylinder is fixedly connected with a first sealing ring, and the inner side of the lower end of the movable cylinder is fixedly connected with a flexible wire.

Description

Technical Field

[0001] The utility model relates to the technical field of oxidation detection devices, in particular to a surface oxidation detection device for a copper bar of a contactor of a new energy vehicle. Background Art

[0002] The new energy vehicle contactor copper busbar surface oxidation detection device is a device specially designed to detect whether the contactors and copper busbars used in new energy vehicles have surface oxidation. Surface oxidation of the contactors and copper busbars may cause poor contact, increased resistance, and even cause safety accidents. The connection structure between the contactor and the copper busbar may produce temperature rise due to various reasons, such as poor contact and excessive current. After the copper busbar is oxidized, its resistivity will change. By measuring the resistivity of the copper busbar, its oxidation degree can be evaluated.

[0003] When testing the copper busbars of new energy vehicle contactors, environmental factors such as temperature and humidity will indeed affect the accuracy of the test results. If these environmental factors cannot be properly controlled, the failure rate of the copper busbars may increase during later use, thereby affecting the reliability and reputation of new energy vehicles. Therefore, a surface oxidation detection device for copper busbars of new energy vehicle contactors is proposed to address the above issues. Utility Model Content

[0004] The purpose of this utility model is to provide a surface oxidation detection device for the copper busbar of a new energy vehicle contactor, so as to solve the problem that if these environmental factors are not properly controlled, the failure rate of the copper busbar may increase during later use, thereby affecting the reliability and product reputation of the new energy vehicle.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A new energy vehicle contactor copper busbar surface oxidation detection device includes a detection machine and a display controller, wherein the top of the detection machine is fixedly connected to the display controller, a dovetail groove is provided on the inner side of the upper end of the detection machine, a movable power connection component is slidably connected to the inner side of the dovetail groove provided by the detection machine, a sealing cover is spirally attached to the outer side of the movable power connection component, the inner side of the movable power connection component is slidably connected to the outer side of the environmental control component, a contactor copper busbar body is installed on the inner side of the movable power connection component, the movable power connection component includes a movable cylinder, a dovetail slider is fixedly connected to the bottom end of the movable cylinder, and a first sealing member is fixedly connected to one side of the movable cylinder. Ring, the inner side of the lower end of the movable cylinder is fixedly connected with a soft wire, one side of the soft wire is fixedly connected with an electric connecting plate, the inner side of the electric connecting plate is rotatably connected with a threaded rotating rod, the outer side of the threaded rotating rod is spirally connected to a limiting column, the inner side of the limiting column is slidably connected with an auxiliary splint, the environmental control component includes an acrylic cylinder, the inner side of the acrylic cylinder is fixedly connected with a heating wire, the outer side of one end of the acrylic cylinder is fixedly connected with a second sealing ring, the inner side of the upper end of the acrylic cylinder is fixedly connected with a solid casing, the inner side of the solid casing is fixedly connected with a temperature and humidity sensor, the inner side of the solid casing is fixedly connected with a solenoid valve, and the top of the solid casing is fixedly connected with an air pump.

[0007] As a further optimization of the present invention, the shape of the dovetail groove is a trapezoid, the dovetail groove passes through the upper end of the detection machine, the inner side of the dovetail groove opened by the detection machine is slidably connected with a dovetail slider, the dovetail slider protrudes from the upper end of the dovetail groove, and the shape of the dovetail slider is a trapezoid.

[0008] As a further optimization of the present invention, the inner side of one end of the cover is hollow, the inner side of the cover is provided with a thread, the inner side of the cover is fitted with one side of the first sealing ring, and the inner side of the cover is spirally fitted to the outer side of the movable cylinder.

[0009] As a further optimization of the present invention, the inner side of the movable cylinder is hollow, one end of the movable cylinder is fixedly connected to a limiting ring, the inner side of the movable cylinder is slidably connected to the outer side of the acrylic cylinder, the outer side of the second sealing ring is fitted with the inner side of the movable cylinder, one end of the movable cylinder is provided with a thread, and the number of the movable cylinders corresponds one to one to the number of the sealing covers.

[0010] As a further optimization of the present invention, the flexible wire is electrically connected to the display controller, the limiting column is shaped like two sections of a cylinder, one side of the limiting column is fixedly connected to one side of the electrical connection plate, a threaded hole is provided on the inner side of the auxiliary splint, a straight hole is provided on the inner side of the auxiliary splint close to the limiting column, the electrical connection plate is fitted with one side of the contactor copper busbar body, one side of the auxiliary splint is fitted with one side of the contactor copper busbar body, and the electrical connection plate is electrically connected to the flexible wire.

[0011] As a further optimization of the present invention, the inner side of the acrylic tube is hollow, the heating wire is electrically connected to the display controller, limiting rings are installed on the outer sides of the front end and the rear end of the acrylic tube, and a through hole is opened on the inner side of the upper end of the acrylic tube.

[0012] As a further optimization of the present invention, the inner side of the solid casing is hollow, the inner side of the solid casing is connected to the air inlet of the vacuum pump, the temperature and humidity sensor is electrically connected to the display controller, and the solid casing is connected to the inner side of the acrylic tube.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] In the utility model, the temperature and humidity of the detection environment are controlled by setting up a movable power connection component and an environmental control component. The device can significantly improve the accuracy of detecting the degree of oxidation on the surface of the contactor copper busbar body. Specifically, the use of the temperature and humidity sensor can accurately measure the temperature and humidity inside the acrylic tube and the movable tube, and the heating function of the heating wire not only helps to adjust the temperature of the internal environment, but also promotes the rapid evaporation of internal moisture, thereby reducing the impact of environmental factors on the detection results. In addition, the sealing effect of the cover and the vacuum extraction function of the vacuum pump jointly ensure the stability of the detection space and avoid interference with the detection accuracy caused by changes in the external environment. Finally, the resistance value of the contactor copper busbar body is detected by the display controller. The change in the resistance value directly reflects the degree of oxidation on the surface of the contactor copper busbar body, thereby realizing an accurate assessment of the oxidation state of the copper busbar surface, which is crucial for preventing faults and ensuring the safe operation of new energy vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the sealing structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the movable power connection component of the utility model;

[0018] Figure 4 For this utility model Figure 3 Schematic diagram of the structure at A;

[0019] Figure 5 This is a schematic diagram of the structure of the environmental control component of the utility model;

[0020] Figure 6 For this utility model Figure 5 Schematic diagram of the structure at point B.

[0021] In the figure: 1. Inspection machine; 2. Display controller; 3. Dovetail groove; 4. Capping;

[0022] 5. Movable electrical connection assembly; 51. Movable cylinder; 52. Dovetail slider; 53. First sealing ring; 54. Flexible wire; 55. Electrical connection plate; 56. Threaded rotating rod; 57. Limiting column; 58. Auxiliary splint;

[0023] 6. Environmental control assembly; 61. Acrylic tube; 62. Heating wire; 63. Second sealing ring; 64. Solid housing; 65. Temperature and humidity sensor; 66. Solenoid valve; 67. Air pump;

[0024] 7. Contactor copper busbar body. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] See also Figure 1-6 , the utility model provides a technical solution:

[0028] A new energy vehicle contactor copper busbar surface oxidation detection device includes a detection machine 1 and a display controller 2. The top of the detection machine 1 is fixedly connected to the display controller 2. A dovetail groove 3 is provided on the inner side of the upper end of the detection machine 1. A movable power connection component 5 is slidably connected to the inner side of the dovetail groove 3 of the detection machine 1. A sealing cover 4 is spirally attached to the outer side of the movable power connection component 5. The inner side of the movable power connection component 5 is slidably connected to the outer side of the environmental control component 6. A contactor copper busbar body 7 is installed on the inner side of the movable power connection component 5. The movable power connection component 5 includes a movable cylinder 51. The bottom end of the movable cylinder 51 is fixedly connected to a dovetail slider 52. A first sealing ring 53 is fixedly connected to one side of the movable cylinder 51. A soft wire 54 is fixedly connected to the inner side of the lower end, an electric connection plate 55 is fixedly connected to one side of the soft wire 54, a threaded rotating rod 56 is rotatably connected to the inner side of the electric connection plate 55, a limit column 57 is spirally connected to the outer side of the threaded rotating rod 56, an auxiliary splint 58 is slidably connected to the inner side of the limit column 57, the environmental control component 6 includes an acrylic tube 61, a heating wire 62 is fixedly connected to the inner side of the acrylic tube 61, a second sealing ring 63 is fixedly connected to the outer side of one end of the acrylic tube 61, a solid casing 64 is fixedly connected to the inner side of the upper end of the acrylic tube 61, a temperature and humidity sensor 65 is fixedly connected to the inner side of the solid casing 64, a solenoid valve 66 is fixedly connected to the inner side of the solid casing 64, and an air pump 67 is fixedly connected to the top of the solid casing 64.

[0029] As a further implementation of this solution, the dovetail groove 3 is in the shape of a trapezoid, and the dovetail groove 3 passes through the upper end of the detection machine 1. A dovetail slider 52 is slidably connected to the inner side of the dovetail groove 3 opened by the detection machine 1. The dovetail slider 52 protrudes from the upper end of the dovetail groove 3. The dovetail slider 52 is in the shape of a trapezoid. The trapezoidal shape of the dovetail groove 3 and the corresponding design of the dovetail slider 52, as well as the threaded inner side design of the cover 4 and the movable cylinder 51, provide excellent structural stability and adjustment flexibility, so that the device can adapt to contactor copper busbar bodies 7 of different sizes, thereby improving the adaptability of the detection process and the convenience of operation;

[0030] As a further implementation of this solution, the inner side of one end of the cover 4 is hollow, and the inner side of the cover 4 is provided with a thread. The inner side of the cover 4 is fitted with one side of the first sealing ring 53, and the inner side of the cover 4 is spirally fitted with the outer side of the movable cylinder 51. The inner thread design of the cover 4 and the fitting and sealing effect of the first sealing ring 53, as well as the vacuum extraction function of the air pump 67, together ensure the stability of the detection space, avoid interference with the detection accuracy due to changes in the external environment, achieve a vacuum state of the internal environment, and provide ideal test conditions for surface oxidation detection of the contactor copper busbar body 7;

[0031] As a further implementation of this solution, the inner side of the movable cylinder 51 is hollow, one end of the movable cylinder 51 is fixedly connected to the limiting ring, the inner side of the movable cylinder 51 is slidably connected to the outer side of the acrylic cylinder 61, the outer side of the second sealing ring 63 is fitted with the inner side of the movable cylinder 51, one end of the movable cylinder 51 is provided with a thread, the number of movable cylinders 51 corresponds to the number of covers 4, the soft wire 54 is electrically connected to the display controller 2, the limiting column 57 is shaped like two sections of a cylinder, one side of the limiting column 57 is fixedly connected to one side of the electrical connection plate 55, a threaded hole is provided on the inner side of the auxiliary splint 58, and the auxiliary splint 58 is close to the inner side of the limiting column 57. A straight hole is opened, the electrical connection plate 55 is fitted with one side of the contactor copper busbar body 7, one side of the auxiliary clamping plate 58 is fitted with one side of the contactor copper busbar body 7, the electrical connection plate 55 is electrically connected to the soft wire 54, the soft wire 54 is electrically connected to the display controller 2, and the electrical connection between the electrical connection plate 55, the soft wire 54 and the contactor copper busbar body 7 ensures the efficiency and accuracy of signal transmission, providing a guarantee for the accurate measurement of the resistance value. The corresponding relationship between the number of movable cylinders 51 and the cover 4, as well as the electrical connection between the acrylic cylinder 61 and the heating wire 62, reflects the degree of automation of the device design, simplifies the operation process, and improves the detection efficiency.

[0032] As a further implementation of this solution, the inner side of the acrylic tube 61 is hollow, the heating wire 62 is electrically connected to the display controller 2, and limiting rings are installed on the outer side of the front end and the rear end of the acrylic tube 61. A through hole is opened on the inner side of the upper end of the acrylic tube 61, and the inner side of the solid shell 64 is hollow. The inner side of the solid shell 64 is connected to the air inlet of the air pump 67, and the temperature and humidity sensor 65 is electrically connected to the display controller 2. The solid shell 64 is connected to the inner side of the acrylic tube 61, which not only provides space for installation and connection, but also enhances the functionality and stability of the device through the setting of the limiting ring and the through hole. The use of the temperature and humidity sensor 65 can accurately measure the temperature and humidity inside the acrylic tube 61 and the movable tube 51, and the heating function of the heating wire 62 helps to adjust the temperature of the internal environment and promote the rapid evaporation of moisture, reducing the influence of environmental factors on the detection results.

[0033] Working process: When testing the surface oxidation of the contactor copper bar body 7 and controlling the environment of the contactor copper bar body 7, one end of the contactor copper bar body 7 is steel-made between the auxiliary clamping plate 58 and the electrical connection plate 55, and the threaded rotating rod 56 is rotated to drive the auxiliary clamping plate 58 to move. The inner side of the auxiliary clamping plate 58 is slidably connected to the outer side of the limit column 57, which plays a role in limiting the movement of the auxiliary clamping plate 58. When the auxiliary clamping plate 58 and the electrical connection plate 55 cooperate to fix the contactor copper bar body 7, the electrical connection plate 55 and the contactor copper bar body are in contact. 7 is electrically connected, and the other end of the contactor copper busbar body 7 is fixed in the same manner as above. After the fixation is completed, the soft wire 54 is a soft wire and does not hinder the normal movement of the electrical connection plate 55. The two movable cylinders 51 are moved away from each other. The movable cylinder 51 is slidably connected to the inner side of the dovetail groove 3 opened on the detection machine 1 through the dovetail slider 52, which plays a role in limiting the moving direction of the movable cylinder 51. The outer side of the movable cylinder 51 is slidably connected to the outer side of the acrylic cylinder 61. The acrylic cylinder 61 is connected to the second sealing ring 63. The movable cylinder 51 is sealed. When the movable cylinders 51 at both ends are adjusted, the cover 4 is spirally rotated on the outside of the movable cylinder 51. When the cover 4 is rotated to the limit, the inner side of the cover 4 is tightly attached to one side of the first sealing ring 53. The first sealing ring 53 plays a role in sealing between the cover 4 and the movable cylinder 51. When the two covers 4 are installed, the temperature and humidity inside the acrylic cylinder 61 and the movable cylinder 51 are detected by the temperature and humidity sensor 65, and the acrylic cylinder 61 is heated by the heating wire 62 to achieve the purpose of sealing the movable cylinder 51 and the acrylic. The moisture inside the tube 61 evaporates quickly, and at the same time, the temperature inside the movable tube 51 and the acrylic tube 61 is within the interval value through the heating of the heating wire 62. The vacuum pump 67 is started to extract the air and moisture inside the acrylic tube 61 and the movable tube 51, so that the inside of the movable tube 51 and the acrylic tube 61 is in a vacuum state. When the display controller 2 is started, the resistance value of the contactor copper busbar body 7 is detected. The resistance value is proportional to the degree of oxidation on the surface of the contactor copper busbar body 7, thereby realizing the detection of oxidation on the surface of the contactor copper busbar body 7.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle contactor copper bar surface oxidation detection device, comprising a detection machine (1) and a display controller (2), characterized in that: The top of the detection machine (1) is fixedly connected to a display controller (2), the inner side of the upper end of the detection machine (1) is provided with a dovetail groove (3), the inner side of the dovetail groove (3) provided on the detection machine (1) is slidably connected to a movable power connection component (5), the outer side of the movable power connection component (5) is spirally attached with a cover (4), the inner side of the movable power connection component (5) is slidably connected to the outer side of the environmental control component (6), and the inner side of the movable power connection component (5) is installed with a contactor copper busbar body (7); The movable power connection assembly (5) includes a movable cylinder (51), the bottom end of the movable cylinder (51) is fixedly connected to a dovetail slider (52), one side of the movable cylinder (51) is fixedly connected to a first sealing ring (53), the inner side of the lower end of the movable cylinder (51) is fixedly connected to a soft wire (54), one side of the soft wire (54) is fixedly connected to an electric connection plate (55), the inner side of the electric connection plate (55) is rotatably connected to a threaded rotating rod (56), the outer side of the threaded rotating rod (56) is spirally connected to a limiting column (57), and the inner side of the limiting column (57) is slidably connected to the There is an auxiliary splint (58), and the environmental control component (6) includes an acrylic tube (61), the inner side of the acrylic tube (61) is fixedly connected to a heating wire (62), the outer side of one end of the acrylic tube (61) is fixedly connected to a second sealing ring (63), the inner side of the upper end of the acrylic tube (61) is fixedly connected to a solid shell (64), the inner side of the solid shell (64) is fixedly connected to a temperature and humidity sensor (65), the inner side of the solid shell (64) is fixedly connected to a solenoid valve (66), and the top of the solid shell (64) is fixedly connected to an air pump (67).

2. A new energy vehicle contactor copper bar surface oxidation detection device according to claim 1, characterized in that: The dovetail groove (3) is in the shape of a trapezoid, and the dovetail groove (3) passes through the upper end of the detection machine (1). A dovetail slider (52) is slidably connected to the inner side of the dovetail groove (3) provided on the detection machine (1), and the dovetail slider (52) protrudes from the upper end of the dovetail groove (3). The dovetail slider (52) is in the shape of a trapezoid.

3. The device for detecting surface oxidation of copper bars of contactors for new energy vehicles according to claim 1, characterized in that: The inner side of one end of the sealing cover (4) is hollow, and a thread is provided on the inner side of the sealing cover (4). The inner side of the sealing cover (4) is fitted with one side of the first sealing ring (53), and the inner side of the sealing cover (4) is spirally fitted with the outer side of the movable cylinder (51).

4. The device for detecting surface oxidation of copper bars of contactors for new energy vehicles according to claim 1, characterized in that: The inner side of the movable cylinder (51) is hollow, one end of the movable cylinder (51) is fixedly connected to a limiting ring, the inner side of the movable cylinder (51) is slidably connected to the outer side of the acrylic cylinder (61), the outer side of the second sealing ring (63) is fitted with the inner side of the movable cylinder (51), one end of the movable cylinder (51) is provided with a thread, and the number of the movable cylinders (51) corresponds to the number of the sealing caps (4).

5. The device for detecting surface oxidation of copper bars of contactors of new energy vehicles according to claim 1, characterized in that: The soft wire (54) is electrically connected to the display controller (2), the limiting column (57) is in the shape of two sections of a cylinder, one side of the limiting column (57) is fixedly connected to one side of the electric connection plate (55), a threaded hole is provided on the inner side of the auxiliary splint (58), a straight hole is provided on the inner side of the auxiliary splint (58) close to the limiting column (57), the electric connection plate (55) is fitted with one side of the contactor copper busbar body (7), one side of the auxiliary splint (58) is fitted with one side of the contactor copper busbar body (7), and the electric connection plate (55) is electrically connected to the soft wire (54).

6. The device for detecting surface oxidation of copper bars of contactors for new energy vehicles according to claim 1, characterized in that: The inner side of the acrylic tube (61) is hollow, the heating wire (62) is electrically connected to the display controller (2), limiting rings are installed on the outer sides of the front end and the rear end of the acrylic tube (61), and a through hole is opened on the inner side of the upper end of the acrylic tube (61).

7. The device for detecting surface oxidation of copper bars of contactors for new energy vehicles according to claim 1, characterized in that: The inner side of the solid housing (64) is hollow, the inner side of the solid housing (64) is connected to the air inlet of the air pump (67), the temperature and humidity sensor (65) is electrically connected to the display controller (2), and the solid housing (64) is connected to the inner side of the acrylic tube (61).

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