Gas engine ignition coil high-voltage sheath withstand voltage electric leakage testing device

Abstract

A gas engine ignition coil high-voltage sheath voltage-withstanding electric leakage testing device comprises an equipment platform and a rotary material disc installed on the equipment platform, and a gluing unit configured to glue on the installation surface of an ignition coil, a pressure-withstanding electric leakage testing unit and a pressure-withstanding electric leakage testing unit are sequentially arranged around the rotary material disc; the sleeving unit is configured to sleeve the ignition coil with the high-voltage sheath; the test unit is configured to test whether the high-voltage sheath leaks electricity or not; and the material distributing unit is configured to automatically distinguish the qualified products from the unqualified products according to the test result of the test unit. According to the gas engine ignition coil high-voltage sheath voltage-withstanding electric leakage testing device, high voltage is applied to check dielectric defects in high-voltage sheath insulation, the coil is protected from being damaged, the spring is connected to a high-voltage direct-current power source to be grounded, and therefore electric stress cannot be generated on a coil winding when a fault occurs. The test equipment can realize automatic high-voltage sheath assembly and high-voltage sheath voltage withstanding test, and can automatically eliminate defective products.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of ignition coil high-pressure sheath testing device. BACKGROUND

[0002] In automobile engine ignition system, ignition coil is a kind of executive component for providing ignition energy for igniting air and fuel mixture in engine cylinder. It is a kind of special pulse booster based on electromagnetic induction principle, which makes 8-16V low voltage pass according to set frequency to make secondary produce 20-40KV voltage to produce electric spark through spark plug. And based on the ignition coil of natural gas engine, there are some differences compared with the structure of traditional ignition coil. For example, the utility model patent with publication number CN217008906 U discloses a kind of natural gas ignition coil, including coil head (ignition coil in this paper) and connecting rod part (high-pressure sheath in this paper), coil head includes shell, coil winding is arranged in shell, coil winding includes primary coil, secondary coil and iron core, secondary coil is wrapped around the outside of primary coil;One side of shell is provided with plug connector, plug connector is connected with the incoming line end of primary coil, the side of shell perpendicular to plug connector is provided with extension interface, connecting rod part is connected with extension interface;Extension interface is provided with connecting terminal, connecting terminal is provided with elastic component on the side close to coil winding, the base of elastic component is provided with inwardly bent spring sheet oppositely, output pin is provided on secondary coil, output pin is inserted between spring sheet;Connecting rod part is provided with cylinder cover sealing ring on the end close to coil head, connecting rod part is provided with spark plug on the end away from coil head, connecting rod part is provided with high-voltage terminal post (high-pressure spring in this paper) connected with connecting terminal and spark plug in it. However, there is no testing device about high-pressure sheath product performance in prior art, and the high-pressure resistance of high-pressure sheath is the key parameter to determine whether ignition coil is invalid, so a kind of device capable of automatic testing and classification of high-pressure sheath of ignition coil is needed. CONTENT OF UTILITY MODEL

[0003] In order to solve the shortcomings of prior art, the purpose of the utility model is to provide a kind of gas engine ignition coil high-pressure sheath pressure leakage testing device capable of automatic testing and classification of high-pressure sheath of ignition coil.

[0004] In order to achieve the above object, the utility model adopts the technical scheme: a kind of gas engine ignition coil high pressure sheath pressure leakage testing device, including equipment platform and the rotating tray of being installed on the equipment platform, around the rotating tray is sequentially provided with: glue unit, the glue unit is configured to glue on the installation surface of ignition coil;Sleeving unit, the sleeve unit is configured to high pressure sheath is sleeved in the ignition coil;Test unit, the test unit is configured to test whether high pressure sheath appears leakage;Material distribution unit, the material distribution unit is configured to automatically distinguish qualified and unqualified product according to the test result of test unit.

[0005] As further improvement, the test unit includes an insulating support frame, a Teflon insulating sleeve mounted below the insulating support frame, the Teflon insulating sleeve is sealingly sleeved on a cylinder cover sealing ring of the high pressure sheath, an inner wall of the Teflon insulating sleeve is embedded with a metal sleeve, the metal sleeve wraps the high pressure sheath downward, a top end of the metal sleeve is provided with a ground component similar to a spark plug shape, the ground component is sealingly inserted into an output end of the high pressure sheath and connected to a high pressure spring, the metal sleeve is connected with a high voltage direct current power supply through a high voltage line, the high voltage direct current power supply monitors a leakage current from the metal sleeve to the high pressure spring through the high pressure sheath, and feeds back a determination result to the material distribution unit.

[0006] As further improvement, the high voltage direct current power supply is a direct current power supply with an output voltage of 50kV and an output current of 2mA.

[0007] As further improvement, the high voltage direct current power supply applies a direct current voltage of 40kV to the metal sleeve and maintains for 4 seconds.

[0008] As further improvement, the high voltage direct current power supply includes a current sensing resistor of 1k ohm.

[0009] As further improvement, the high voltage direct current power supply detects whether the leakage current is greater than 0.2mA.

[0010] As further improvement, a plurality of positioning toolings are provided on the rotating tray, the positioning toolings are positioned and installed with the ignition coil and the high pressure sheath,

[0011] As further improvement, the glue unit includes a glue gun and a motion control system thereof.

[0012] As further improvement, the sleeve unit includes a sleeve mechanical arm and a motion control system thereof.

[0013] As further improvement, the material distribution unit includes a material distribution mechanical arm and a motion control system thereof, and a material distribution conveyor belt.

[0014] Due to the above technical scheme, the high-voltage sheath leakage test device for the ignition coil of the gas engine applies high voltage to check the dielectric defects in the high-voltage sheath insulation, protects the coil from damage, and the spring is connected to the high-voltage DC power supply ground, so that the coil winding will not be subjected to electric stress when a fault occurs. The test equipment can realize automatic high-voltage sheath assembly, high-voltage sheath pressure test, and automatically exclude defective products. BRIEF DESCRIPTION OF DRAWINGS

[0015] FIG. 1 is a perspective view of a high-voltage sheath leakage test device for an ignition coil of a gas engine according to the present application; Figure 1 FIG. 2 is a perspective view of a test unit of the high-voltage sheath leakage test device for the ignition coil of the gas engine according to the present application;

[0016] FIG. 3 is a sectional view of the test unit of the high-voltage sheath leakage test device for the ignition coil of the gas engine according to the present application; Figure 2 FIG. 4 is a working principle diagram of the test unit of the high-voltage sheath leakage test device for the ignition coil of the gas engine according to the present application.

[0017] FIG. 5 is a perspective view of a high-voltage sheath leakage test device for an ignition coil of a gas engine according to another embodiment of the present application; Figure 3 FIG. 6 is a sectional view of a test unit of the high-voltage sheath leakage test device for the ignition coil of the gas engine according to the embodiment of the present application;

[0018] FIG. 7 is a working principle diagram of the test unit of the high-voltage sheath leakage test device for the ignition coil of the gas engine according to the embodiment of the present application. Figure 4 DETAILED DESCRIPTION

[0019] Hereinafter, terms used in the specification will be briefly described, and embodiments will be described in detail. All terms used herein, including descriptive terms or technical terms, should be interpreted to have meanings understood by those of ordinary skill in the art. However, these terms can have different meanings according to the intention of those of ordinary skill in the art, precedents, or the emergence of new technology.

[0020] In addition, some terms can be selected by the applicant, and in this case, the meaning of the selected term will be described in detail in the detailed description of the embodiments. Therefore, the terms used herein must be defined based on the meaning of the terms together with the description in the entire specification. In addition, when a component "includes" or "comprises" an element, unless there is a specific description contrary thereto, the component can also include other elements, without excluding other elements. In the following description, terms such as "component" and "module" indicate a unit for processing at least one function or operation, in which the unit and module can be implemented as hardware or software or by combining hardware and software.

[0021] ​Embodiments will now be described more fully with reference to the accompanying drawings. However, embodiments may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the embodiments to those skilled in the art. In the following description, well-known functions or structures are not described in detail, as they would obscure the embodiments with unnecessary detail, and throughout the specification, the same reference numerals in the drawings denote the same or similar elements.

[0022] Appendix Figure 1 This is a perspective view of the high-voltage sheath withstand voltage and leakage current testing device for gas engine ignition coils according to the present invention. The high-voltage sheath withstand voltage and leakage current testing device for gas engine ignition coils in this embodiment includes an equipment platform 1 and a rotating material tray 2 installed on the equipment platform 1. Multiple positioning fixtures 3 are provided on the rotating material tray 2. The ignition coil and the high-voltage sheath are positioned and installed on the positioning fixtures 3. A glue application unit 4, a fitting unit 5, a testing unit 6, and a material distribution unit 7 are arranged in sequence around the rotating material tray 2.

[0023] The glue application unit 4 includes a glue application gun and its motion control system. When the positioning fixture 3 on the rotating material tray 2 rotates into place, the glue application gun will apply glue to the mounting surface of the ignition coil.

[0024] The assembly unit 5 includes an assembly robotic arm and its motion control system. When the positioning fixture 3 on the rotating tray 2 rotates into place, the assembly robotic arm will assemble the high-voltage sheath onto the mounting surface of the ignition coil.

[0025] Test unit 6 includes a test system. When the positioning fixture 3 on the rotating tray 2 rotates into position, the test system tests whether the high-voltage sheath has leakage.

[0026] The material sorting unit 7 includes a material sorting robotic arm and its motion control system, and a material sorting conveyor belt. When the positioning fixture 3 on the rotating material tray 2 rotates into place, the material sorting unit 7 automatically distinguishes between qualified and unqualified products based on the test results of the testing unit.

[0027] Appendix Figure 2 A perspective view of the test unit of the gas engine ignition coil high-voltage sheath withstand voltage leakage current testing device according to this utility model; attached. Figure 3The utility model discloses a high pressure sheath pressure leakage test device for ignition coil of gas engine, which belongs to the technical field of ignition coil test equipment.

[0028] The utility model discloses a high pressure sheath pressure leakage test device for ignition coil of gas engine, which belongs to the technical field of ignition coil test equipment. Figure 4 The utility model discloses a high pressure sheath pressure leakage test device for ignition coil of gas engine, which belongs to the technical field of ignition coil test equipment. Figure 4 The utility model discloses a high pressure sheath pressure leakage test device for ignition coil of gas engine, which belongs to the technical field of ignition coil test equipment.

[0029] The embodiments described herein should be considered in a descriptive sense only and not for purposes of limitation. Descriptions of features or aspects within each embodiment should typically be considered as being applicable to other similar features or aspects in other embodiments. While one or more embodiments have been described with reference to the figures, it will be apparent to those of ordinary skill in the art that various changes in form and details can be made therein without departing from the spirit and scope as defined by the following claims.

Claims

1. A kind of high-pressure sheath pressure leakage test device of gas engine ignition coil, it is characterized in that: The device platform (1) and the rotating tray (2) installed on the device platform (1) are provided with, in sequence, a rotating tray (2), a glue applying unit (4), a sheathing unit (5), a testing unit (6) and a distribution unit (7). The glue applying unit (4) is configured to apply glue on the mounting surface of the ignition coil. The sheathing unit (5) is configured to sheath the high-voltage sheath on the ignition coil. The testing unit (6) is configured to test whether the high-voltage sheath has a leakage. The distribution unit (7) is configured to automatically distinguish the qualified and unqualified products according to the test result of the testing unit.

2. The high voltage housing pressure leakage test device for a gas engine ignition coil of claim 1, wherein: The testing unit (6) comprises an insulating support frame (61) and a Teflon insulating sleeve (62) installed below the insulating support frame (61), the Teflon insulating sleeve (62) is sealingly sleeved on the cylinder cover sealing ring of the high-voltage sheath, the inner wall of the Teflon insulating sleeve (62) is embedded with a metal sleeve (63), the metal sleeve (63) wraps the high-voltage sheath downward, the top end of the metal sleeve (63) is provided with a ground component (64) in the shape of a spark plug, the ground component (64) is sealingly inserted into the output end of the high-voltage sheath and connected to the high-voltage spring, the metal sleeve (63) is connected with a high-voltage direct current power supply through a high-voltage line (65), the high-voltage direct current power supply monitors the leakage current from the metal sleeve (63) to the high-voltage spring through the high-voltage sheath and feeds back the judgment result to the distribution unit (7).

3. The high voltage housing pressure leakage test device for a gas engine ignition coil of claim 2, wherein: The high-voltage direct current power supply is a direct current power supply with an output voltage of 50kV and an output current of 2mA.

4. The high voltage housing pressure leakage test device for a gas engine ignition coil of claim 2, wherein: The high-voltage direct current power supply applies a direct current voltage of 40kV to the metal sleeve (63) and maintains for 4 seconds.

5. The gas engine ignition coil high voltage jacket pressure leakage test device of claim 4, wherein: The high-voltage direct current power supply comprises a current sensing resistor (66) with a resistance of 1kΩ.

6. The high voltage housing pressure leakage test device for a gas engine ignition coil of claim 5, wherein: The high-voltage direct current power supply detects whether the leakage current is greater than 0.2mA.

7. The high voltage housing pressure leakage test device for a gas engine ignition coil of claim 1, wherein: The rotating tray (2) is provided with a plurality of positioning tools (3), the positioning tools (3) are provided with the ignition coil and the high-voltage sheath.

8. The high voltage housing pressure leakage test device for a gas engine ignition coil of claim 1, wherein: The glue applying unit (4) comprises a glue gun and a motion control system thereof.

9. The high voltage housing pressure leakage test device for a gas engine ignition coil of claim 1, wherein: The sheathing unit (5) comprises a sheathing mechanical arm and a motion control system thereof.

10. The high voltage housing pressure leakage test device for a gas engine ignition coil of claim 1, wherein: The distribution unit (7) comprises a distribution mechanical arm and a motion control system thereof, and a distribution conveying belt.

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