Automatic test system for ignition and flameout box
By designing an automatic testing system for the ignition shut-off box and using relay control to achieve automatic testing, the problem of low efficiency in manual operation is solved, the testing efficiency and accuracy of the ignition shut-off box product are improved, and abnormal testing caused by reverse wiring is prevented.
Patent Information
- Application Number
- CN202520819391.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-28
AI Technical Summary
The debugging and inspection of existing flameout box products mainly rely on manual operation, which is inefficient and poses quality and safety risks. These problems become more pronounced as production volume increases.
An automatic testing system for an ignition and shutdown box was designed, including an ignition and shutdown box testing fixture and a host computer. The system achieves automatic testing through relay on/off control, which can determine whether the ignition and shutdown function is normal and prevent reverse wiring.
It enables automated functional testing of ignition shut-off box products, improving testing efficiency and accuracy, reducing human intervention, and preventing test anomalies caused by reverse wiring.
Smart Images
Figure CN223955992U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of vehicle-mounted controller, especially to an automatic testing system of point flameout box. BACKGROUND
[0002] The point flameout box is a kind of vehicle-mounted point flameout control box product, which is used to convert the single-wire active (24V) point flameout signal output by the control box into double-wire dry contact form, and can flexibly configure the dry contact type. However, the current debugging and testing of the point flameout box product are all manual operations, and visual inspection is required. In addition, the control of the two unused contacts in each point flameout box product is also not strict. In other words, the current debugging and testing process of the point flameout box product not only has low work efficiency, but also has many product quality and safety hazards. With the expansion of the production of the point flameout box product, these disadvantages will become more and more obvious. In order to prevent problems from happening, improve production efficiency and increase the degree of automation, it is necessary to design and develop an automatic testing system for the point flameout box. SUMMARY
[0003] To solve the technical problems in the background art, the utility model provides an automatic testing system for a point flameout box, which comprises:
[0004] The point flameout box testing tool is used to electrically connect with the point flameout box to be tested, and automatically test the ignition / extinction control function of the point flameout box to be tested through the internal relay on-off control.
[0005] The upper computer is connected with the point flameout box testing tool, and is used to send the relay on-off control instruction to the point flameout box testing tool and obtain the output of the point flameout box to be tested through the point flameout box testing tool, so as to automatically judge the test result.
[0006] Further, the point flameout box testing tool comprises a tool shell, a tool bottom plate, and a power module, two network relay control boards and a switch set in the tool shell. The power module is used to supply power to the network relay control boards, the switch and the point flameout box to be tested respectively, and the network relay control boards communicate with the upper computer through the switch.
[0007] Further, the tool bottom plate is fixed on the ear plates on both sides of the tool shell by screws, and handles are arranged on both sides of the tool shell, and a heat dissipation grid is arranged on the tool shell corresponding to the position of the power module.
[0008] Further, the to-be-tested point extinguishing box is composed of a point extinguishing box shell, an input wiring port, an output wiring, and a firing relay and an extinguishing relay arranged inside the point extinguishing box shell, in a normal use condition, the firing relay is in a normally open state, a common end COM thereof is connected with a normally open contact as an output wiring, and a normally closed contact is not connected; the extinguishing relay is in a normally closed state, the common end COM thereof is connected with a normally closed contact as an output wiring, and a normally open contact is not connected, the point extinguishing box product is connected with an external controller through the input wiring port, the input wiring port is internally provided with a firing signal line A, an extinguishing signal line B, and a common ground line C, the firing signal line A and the ground line C are connected with the firing relay respectively, and the extinguishing signal line B and the ground line C are connected with the extinguishing relay respectively.
[0009] Further, in a test condition, the to-be-tested point extinguishing box is connected with a first network relay control panel B1 and a second network relay control panel B2 respectively, the first network relay control panel B1 and the second network relay control panel B2 are respectively provided with N relays YN and a plurality of input ends XN.
[0010] Further, the firing signal line A is connected with a common end of a first relay Y1 of the first network relay control panel B1, a normally open contact of the first relay Y1 of the first network relay control panel B1 is connected with a +24V direct current output end of the power module, so as to simulate a firing signal input.
[0011] The extinguishing signal line B is connected with a common end of a second relay Y2 of the first network relay control panel B1, a normally open contact of the second relay Y2 of the first network relay control panel B1 is connected with the +24V direct current output end of the power module, so as to simulate a firing signal input.
[0012] Further, a common end of a first relay Y1 of the second network relay control panel B2 is connected with a product firing line of the firing relay, a normally open contact is connected with a power output end VCC_OUT of the first network relay control panel B1, and a normally closed contact is connected with a first input end X1 of the first network relay control panel B1.
[0013] A second input end X2 of the first network relay control panel B1 is connected with a test firing line of the firing relay.
[0014] A common end of a second relay Y2 of the second network relay control panel B2 is connected with a firing common end of the firing relay, a normally open contact is connected with the first input end X1 of the first network relay control panel B1, and a normally closed contact is connected with the power output end VCC_OUT of the first network relay control panel B1.
[0015] The common end of the third relay Y3 of the second network relay control board B2 is connected with the product extinguishing line of the extinguishing relay, the normally open contact is connected with the power output end VCC_OUT of the first network relay control board B1, and the normally closed contact is connected with the third input end X3 of the first network relay control board B1;
[0016] The fourth input end X4 of the first network relay control board B1 is connected with the test extinguishing line of the extinguishing relay;
[0017] The common end of the fourth relay Y4 of the second network relay control board B2 is connected with the extinguishing common end of the extinguishing relay, the normally open contact is connected with the third input end X3 of the first network relay control board B1, and the normally closed contact is connected with the power output end VCC_OUT of the first network relay control board B1.
[0018] An automatic testing method applied to an automatic testing system, comprising the following steps:
[0019] 1) Before performing the functional automatic testing on the point extinguishing box product, connecting the built-in switch of the point extinguishing box testing tool with the upper computer through a network cable, and connecting the multiple point extinguishing boxes to be tested to the point extinguishing box testing tool;
[0020] 2) Inputting the product model, order information, operator name, department and other information of the point extinguishing box to be tested in the automatic testing software of the upper computer, and configuring the test connection line corresponding to the product model;
[0021] 3) Starting the test by the upper computer, performing the ignition / extinguishing control function test and the tool line anti-reverse connection test by controlling the on-off of the relays of the network relay control board, and saving the test results.
[0022] Further, the ignition / extinguishing control function test in the step 3) is specifically:
[0023] The upper computer controls the on-off of the corresponding relays of the first network relay control board and the second network relay control board, when the common end COM of the first relay Y1 of the first network relay control board B1 is connected with the normally open contact, if the first input end X1 and the third input end X3 of the first network relay control board B1 have voltage signals, and the second input end X2 and the fourth input end X4 of the first network relay control board B1 have no voltage signals, it is judged that the ignition function is normal and has no reverse connection;
[0024] When the common end COM of the second relay Y2 of the first network relay control board B1 is connected with the normally open contact, if the second input end X2 and the fourth input end X4 of the first network relay control board B1 have voltage signals, and the first input end X1 and the third input end X3 of the first network relay control board B1 have no voltage signals, it is judged that the extinguishing function is normal and no reverse connection.
[0025] Further, when the ignition / extinguishing control function test is performed, if the first input end X1 and the second input end X2 of the first network relay control board B1 have no voltage signals, it is judged that the product ignition line is reversely connected with the ignition common end, at this time, the upper computer automatically controls the first relay Y1 and the second relay Y2 of the second network relay control board B2 to simultaneously act to complete the line switching; if the third input end X3 and the fourth input end X4 of the first network relay control board B1 have no voltage signals, it is judged that the product extinguishing line is reversely connected with the extinguishing common end, at this time, the upper computer automatically controls the third relay Y3 and the fourth relay Y4 of the second network relay control board B2 to simultaneously act to complete the line switching.
[0026] Compared with the prior art, the utility model has following advantages:
[0027] The utility model provides an automatic test system of ignition and extinguishing box, can carry out automatic function test to ignition and extinguishing box product, judges whether ignition and extinguishing function is normal, and has designed ignition and extinguishing box test tooling personally, can also prevent ignition and extinguishing function detection abnormality caused by line reverse connection, carries out line adjustment automatically, and this ignition and extinguishing box test tooling can automatically test 4 ignition and extinguishing box products one time, and still can expand through increasing network relay control board, test efficiency is improved greatly, reduces human intervention, improves test accuracy, reduces operability. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 It is the principle block diagram of automatic test system of ignition and extinguishing box;
[0029] Figure 2 It is the structure schematic diagram of ignition and extinguishing box product;
[0030] Figure 3 It is the structure schematic diagram of ignition and extinguishing box test tooling;
[0031] Figure 4 It is the electrical schematic diagram of first network relay control board;
[0032] Figure 5 It is the electrical schematic diagram of second network relay control board;
[0033] Figure 6 It is the step flow chart of ignition and extinguishing box function automatic test method.
[0034] Reference Signs List:
[0035] 1, network port, 2, running indicator light, 3, network relay control board, 4, switch with power light, 5, power module, 6, 220V power supply port, 7, tool shell, 8, fastening head. DETAILED DESCRIPTION
[0036] The utility model will be described in detail below in combination with the drawings and specific embodiments. The embodiments are implemented on the premise of the technical scheme of the utility model, and detailed implementation modes and specific operation processes are given, but the protection scope of the utility model is not limited to the following embodiments.
[0037] It should be noted that in the present specification, similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0038] In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0039] The terms "first", "second", and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.
[0040] In the description of the present embodiment, it should also be noted that unless otherwise explicitly specified and limited, the terms "set", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present embodiment can be understood according to the specific circumstances.
[0041] In order to make the purpose, technical scheme and advantages of the utility model more clear, the embodiments of the utility model will be further described in detail below in combination with the drawings.
[0042] EMBODIMENT
[0043] As Figure 1As shown, the utility model provides a kind of automatic test system of point flameout box, and the system includes point flameout box test tool and the host computer of installing automatic test software, the point flameout box test tool can detect 4 point flameout box products simultaneously, such as Figure 2 As shown, point flameout box product is mainly composed of point flameout box shell, input wiring port, output wiring and ignition relay and flameout relay arranged inside point flameout box shell, under normal use condition, ignition relay is in normally open state, its common end COM is connected with normally open contact (as output wiring), while normally closed contact is not connected;Flameout relay is in normally closed state, its common end COM is connected with normally closed contact (as output wiring), while normally open contact is not connected, the point flameout box product is connected with vehicle-mounted controller through input wiring port, input wiring port is equipped with ignition signal line A, flameout signal line B and common ground line C, ignition signal line A and ground line C are connected with ignition relay respectively, flameout signal line B and ground line C are connected with flameout relay respectively, and the on-off control of ignition relay and flameout relay contact is realized respectively.
[0044] As shown, Figure 3 As shown, point flameout box test tool includes tool shell 7, tool base plate and power module 5 arranged inside tool shell 7, two network relay control boards 3, built-in switch, switch 4 with power lamp and operation indicator light 2, in this case, power module 5 uses model Mingwei T-60D switching power supply, and the power module 5 is connected with external 220V alternating current power supply through 220V power supply port 6, and 220V alternating current is converted into +5V, +12V and +24V direct current respectively, wherein, +5V direct current is used to power built-in switch, +12V direct current is used to power two network relay control boards 3, and +24V direct current is used to power (simulate point flameout signal) the point flameout box product to be measured, network relay control board 3 is connected with the host computer installed with automatic test software through network port 1 arranged on the side of tool shell 7 and built-in switch, to realize the control of detection and the acquisition processing and display of signal, and network relay control board 3 is connected with corresponding 4 point flameout box products to be measured through cable and fastening head 8 (4 are provided in this case, and can be expanded according to actual demand) respectively.
[0045] Tool base plate of point flameout box test tool is fixed on the lug plate of both sides of tool shell 7 by screw, and handle is arranged on both sides of tool shell 7 respectively, to facilitate handling, and in addition, heat dissipation grid is opened at the position of power module 5 of tool shell 7.
[0046] The flameout box test fixture has two 16-channel network relay control boards 3 (first network relay control board B1 and second network relay control board B2), specifically model ZQWL-10-1BXRC16. The first network relay control board and the second network relay control board communicate with the host computer through a switch and are powered by +12V DC through the power module 5.
[0047] The electrical wiring of the first network relay control board B1 is as follows: Figure 4 As shown, the first network relay control board B1 has a total of 16 relays (Y1~Y16), 16 input control terminals (X1~X16), a first 12V power supply interface and a first network port. The first 12V power supply interface is connected to the +12V DC output terminal of the power module 5, and the first network port communicates with the host computer through the built-in switch.
[0048] The electrical wiring of the second network relay control board B2 is as follows: Figure 5 As shown, combined with Figure 2 The structure of the flameout box product shown is as follows: the second network relay control board B2 has a total of 16 relays (Y1~Y16), 16 input control terminals (X1~X16), a second 12V power supply terminal and a second network port. The second 12V power supply terminal is connected to the +12V DC output terminal of the power module 5, and the second network port communicates with the host computer through the built-in switch.
[0049] The switch 4 with the power indicator light serves as the main power switch for the ignition box test fixture, used to control the power module 5 to supply power to external devices. When the switch 4 with the power indicator light is pressed, the power module 5 starts to supply power to external devices, and the power indicator light illuminates.
[0050] The following explanation uses the example of connecting one test point to a flameout box product with this fixture.
[0051] Each relay on the first network relay control board B1 and the second network relay control board B2 is equipped with a normally open contact NO, a normally closed contact NC, and a common terminal COM. The following section discusses... Figure 2 The structure of the flameout box product shown further describes the electrical connection relationships.
[0052] The ignition signal line A of the test point flameout box product is connected to the common terminal COM (abbreviated as B1Y1COM, the same below) of the first relay Y1 of the first network relay control board B1. The normally open contact (abbreviated as B1Y1NO, the same below) of the first relay Y1 of the first network relay control board B1 is connected to the +24V DC output terminal of the power module 5 through the sixteenth relay Y16 of the first network relay control board B1 to simulate the ignition signal input. The sixteenth relay Y16 of the first network relay control board B1 plays a safety role to prevent live operation.
[0053] The flame-out signal line B of the to-be-tested point flame-out box product is connected to the common terminal COM (abbreviated as B1Y2COM hereinafter) of the second relay Y2 of the first network relay control board B1, and the normally open contact (abbreviated as B1Y2NO hereinafter) of the second relay Y2 of the first network relay control board B1 is connected to the +24V DC output terminal of the power module 5 through the sixteenth relay Y16 of the first network relay control board B1, so as to simulate the flame-out signal input;
[0054] The positive electrode of the +24V DC output terminal of the power module 5 is connected to the normally open contact (abbreviated as B1Y16NO hereinafter) of the sixteenth relay Y16 of the first network relay control board B1, and the negative electrode is commonly grounded with the ground wire C. The common terminal COM (abbreviated as B1Y16COM hereinafter) of the sixteenth relay Y16 of the first network relay control board B1 is connected to the normally open contacts of the first to eighth relays Y1-Y8 of the first network relay control board B1. One end of the running indicator lamp 2 is connected to the negative electrode of the +24V DC output terminal of the power module 5, and the other end is connected to B1Y16COM. When the sixteenth relay Y16 of the first network relay control board B1 is actuated to be closed, the running indicator lamp 2 is bright, indicating that the tooling is in a running state.
[0055] The ground wire C of the ignition relay and the flame-out relay in the to-be-tested point flame-out box product is commonly grounded;
[0056] The product ignition line 1 of the to-be-tested point flame-out box product is connected to the common terminal COM (abbreviated as B2Y1COM hereinafter) of the first relay Y1 of the second network relay control board B2. B2Y1COM is normally connected to the normally closed contact (abbreviated as B2Y1NC hereinafter) of the first relay Y1 of the second network relay control board B2. B2Y1NC is connected to the first input terminal X1 (abbreviated as B1X1 hereinafter) of the first network relay control board B1. The normally open contact (abbreviated as B2Y1NO hereinafter) of the first relay Y1 of the second network relay control board B2 is connected to the power output terminal VCC_OUT (+12V, which is used to provide a detection voltage for the input terminal X of the network relay control board) of the first network relay control board B1.
[0057] The test ignition line 2 of the to-be-tested point flame-out box product is connected to the second input terminal X2 (abbreviated as B1X2 hereinafter) of the first network relay control board B1.
[0058] The ignition common end 3 of the to-be-tested point flameout box product is connected with the common end COM (abbreviated as B2Y2COM, the same below) of the second relay Y2 of the second network relay control board B2, the B2Y2COM is normally connected with the normally closed contact (abbreviated as B2Y2NC, the same below) of the second relay Y2 of the second network relay control board B2, the B2Y2NC is connected with the power output end VCC_OUT of the first network relay control board B1, and the normally open contact (abbreviated as B2Y3NO, the same below) of the second relay Y2 of the second network relay control board B2 is connected with B1X1.
[0059] The product flameout line 4 of the to-be-tested point flameout box product is connected with the common end COM (abbreviated as B2Y3COM, the same below) of the third relay Y3 of the second network relay control board B2, the B2Y3COM is normally connected with the normally closed contact (abbreviated as B2Y3NC, the same below) of the third relay Y3 of the second network relay control board B2, the B2Y3NC is connected with the third input end X3 (abbreviated as B1X3, the same below) of the first network relay control board B1, and the normally open contact (abbreviated as B2Y3NO, the same below) of the third relay Y3 of the second network relay control board B2 is connected with the power output end VCC_OUT of the first network relay control board B1.
[0060] The test flameout line 5 of the to-be-tested point flameout box product is connected with the fourth input end X4 (abbreviated as B1X4, the same below) of the first network relay control board B1.
[0061] The flameout common end 6 of the to-be-tested point flameout box product is connected with the common end COM (abbreviated as B2Y4COM, the same below) of the fourth relay Y4 of the second network relay control board B2, the B2Y4COM is normally connected with the normally closed contact (abbreviated as B2Y4NC, the same below) of the fourth relay Y4 of the second network relay control board B2, the B2Y4NC is connected with the power output end VCC_OUT of the first network relay control board B1, and the normally open contact (abbreviated as B2Y4NO, the same below) of the fourth relay Y4 of the second network relay control board B2 is connected with B1X3.
[0062] When the point flameout box test tool needs to be connected with four point flameout box products, the remaining three point flameout box products are connected according to the above connection mode of the point flameout box product, and the automatic function test is realized through the automatic test software of the upper computer.
[0063] The utility model discloses not only provide a kind of point flameout box's automatic test system, and point flameout box's function automatic test method is also developed based on the system, the content of point flameout box's function automatic test includes the ignition / flameout control function test of point flameout box product and tooling line anti-reverse connection test, including the following steps:
[0064] 1. Before performing automatic functional testing on the fire extinguishing box product, connect the built-in switch of the fire extinguishing box test fixture to the host computer with a network cable, and connect the multiple fire extinguishing boxes to be tested to the fire extinguishing box test fixture.
[0065] Based on the aforementioned structure and circuit description of the ignition box test fixture, the ignition box product under test is connected to the ignition box test fixture. Taking the first ignition box product under test as an example, the corresponding connection relationship is shown in Table 1.
[0066] Table 1. Corresponding Connections Between Ignition Extinguishing Box Products and Ignition Extinguishing Box Testing Fixtures
[0067]
[0068]
[0069] 2. Enter the product model, order information, operator's name, department, and other information of the flameout box under test into the automatic testing software on the host computer, and configure the test connection lines (4 in total) corresponding to the product model;
[0070] 3. Automatically close the power switch, start the test on the host computer, and perform ignition / fire-off control function test and reverse connection test of the tooling circuit by controlling the on / off of each relay on the network relay control board. Save the test results. After the test is completed, remove the multiple fire-off boxes to be tested.
[0071] The control and test results of the ignition / extinguishing control function test and the reverse connection protection test of the tooling circuit are shown in Table 2.
[0072] Table 2 Test Control and Results
[0073] A (Bl Yl) B (Bl Y2) Bl Xl Bl X2 Bl X3 Bl X4 Result 0 0 0 1 1 0 Normal, no reverse connection 1 0 1 0 1 0 Ignition function normal, no reverse connection 0 1 0 1 0 1 Extinguishing function normal, no reverse connection 0 0 0 0 1 0 Product ignition line 1 and ignition common end 3 reverse connection 0 0 0 1 0 0 Product extinguishing line 4 and extinguishing common end 6 reverse connection 1 0 1 0 0 0 Product extinguishing line 4 and extinguishing common end 6 reverse connection 0 1 0 0 0 1 Product ignition line 1 and ignition common end 3 reverse connection
[0074] In Table 2, A(B1Y1) being 1 indicates that the common terminal COM of the first relay Y1 of the first network relay control board B1 controlled by the host computer is connected to the normally open contact, while being 0 indicates that the common terminal COM of the first relay Y1 of the first network relay control board B1 controlled by the host computer is connected to the normally closed contact. B(B1Y2) being 1 indicates that the common terminal COM of the second relay Y2 of the first network relay control board B1 controlled by the host computer is connected to the normally open contact, while being 0 indicates that the common terminal COM of the second relay Y2 of the first network relay control board B1 controlled by the host computer is connected to the normally closed contact. B1X1, B1X2, B1X3, and B1X4 being 1 indicates that there is a voltage signal at the first, second, third, and fourth input terminals of the first network relay control board B1, respectively, while being 0 indicates that there is no voltage signal at the first, second, third, and fourth input terminals of the first network relay control board B1, respectively.
[0075] Since the ignition wire 1 and ignition common terminal 3 of the ignition and shutdown box products are both black wires as required, and the shutdown wire 4 and shutdown common terminal 6 are both white wires, confusion can easily occur when operators connect multiple shutdown box products to the ignition and shutdown box test fixture, resulting in reversed wiring. In the automatic testing process, this utility model judges the ignition / shutdown control function and the reverse connection protection of the fixture circuit according to the input terminal data of the first network relay control board as shown in Table 2.
[0076] If the test results show a reverse connection, the system will automatically adjust the reversed wiring to restore the normal test state, and then perform an automatic test of the ignition shut-off box function until the ignition shut-off function is normal. For example, when the ignition wire 1 of the first ignition shut-off box product under test is reversed with the ignition common terminal 3, the host computer will simultaneously control the first relay Y1 and the second relay Y2 of the second network relay control board B2 to switch and automatically swap the wiring. If the test result is still not normal after swapping the two reversed wires, it is determined that there are problems such as poor soldering, open circuit, short circuit, or damage to the ignition shut-off relay, and the ignition shut-off box under test needs to be repaired.
[0077] In summary, this utility model provides an automatic testing system for ignition shut-off boxes, capable of automatically testing the ignition shut-off box products, determining whether the ignition shut-off function is normal, and featuring a self-designed ignition shut-off box testing fixture. It also prevents ignition shut-off function detection abnormalities caused by reverse wiring by automatically reversing the wiring. This ignition shut-off box testing fixture can automatically test four ignition shut-off box products at a time, and can be expanded by adding a network relay control board, significantly improving testing efficiency, reducing human intervention, increasing testing accuracy, and simplifying operation.
[0078] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. An automatic test system for a pilot flame failure box, characterized by, The system comprises: A point flameout box test tool for electrically connecting with the point flameout box to be tested to automatically test the ignition and flameout control function of the point flameout box to be tested through internal relay on-off control; A host computer connected with the point flameout box test tool to send relay on-off control instructions to the point flameout box test tool and automatically judge the test result through the output of the point flameout box to be tested by the point flameout box test tool.
2. An automatic test system for a pilot flame failure box as defined in claim 1, wherein The point flameout box test tool comprises a tool shell (7), a tool bottom plate, and a power module (5), two network relay control boards (3) and a switch provided inside the tool shell (7), the power module (5) is used to supply power to the network relay control boards (3), the switch and the point flameout box to be tested respectively, and the network relay control boards (3) communicate with the host computer through the switch respectively.
3. An automatic test system for a pilot flame failure box as defined in claim 2, wherein, The tool bottom plate is fixed on the ear plates on both sides of the tool shell (7) by screws, and handles are provided on the two side surfaces of the tool shell (7), and a heat dissipation grid is provided on the tool shell (7) at the position corresponding to the power module (5).
4. The automatic test system of a pilot flame failure box according to claim 2, wherein, The point flameout box to be tested is composed of a point flameout box shell, an input wiring port, an output wiring and an ignition relay and a flameout relay provided inside the point flameout box shell, under normal use, the ignition relay is in a normally open state, the common terminal COM thereof is connected with the normally open contact as the output wiring, and the normally closed contact is not connected; the flameout relay is in a normally closed state, the common terminal COM thereof is connected with the normally closed contact as the output wiring, and the normally open contact is not connected, the point flameout box product is connected with an external controller through the input wiring port, the input wiring port is provided with an ignition signal line A, a flameout signal line B and a common ground line C, the ignition signal line A and the ground line C are connected with the ignition relay respectively, and the flameout signal line B and the ground line C are connected with the flameout relay respectively.
5. An automatic test system for a pilot flame failure box as defined in claim 4, wherein, Under test conditions, the point flameout box to be tested is connected with a first network relay control board B1 and a second network relay control board B2 respectively, the first network relay control board B1 and the second network relay control board B2 are respectively provided with N relays YN and a plurality of input terminals XN.
6. The automatic test system of the point flameout box according to claim 5, wherein the ignition signal line A is connected with the common terminal of the first relay Y1 of the first network relay control board B1, and the normally open contact of the first relay Y1 of the first network relay control board B1 is connected with the +24V DC output terminal of the power module (5) to simulate the ignition signal input; the flameout signal line B is connected with the common terminal of the second relay Y2 of the first network relay control board B1, and the normally open contact of the second relay Y2 of the first network relay control board B1 is connected with the +24V DC output terminal of the power module (5) to simulate the ignition signal input.
7. The automatic test system of the point flameout box according to claim 6, wherein The common terminal of the first relay Y1 of the second network relay control board B2 is connected with the product ignition line of the ignition relay, the normally open contact is connected with the power output terminal VCC_OUT of the first network relay control board B1, and the normally closed contact is connected with the first input terminal X1 of the first network relay control board B1; The second input terminal X2 of the first network relay control board B1 is connected with the test ignition line of the ignition relay; The common terminal of the second relay Y2 of the second network relay control board B2 is connected with the ignition common terminal of the ignition relay, the normally open contact is connected with the first input terminal X1 of the first network relay control board B1, and the normally closed contact is connected with the power output terminal VCC_OUT of the first network relay control board B1; The common terminal of the third relay Y3 of the second network relay control board B2 is connected with the product ignition-off line of the ignition-off relay, the normally open contact is connected with the power output terminal VCC_OUT of the first network relay control board B1, and the normally closed contact is connected with the third input terminal X3 of the first network relay control board B1; The fourth input terminal X4 of the first network relay control board B1 is connected with the test ignition-off line of the ignition-off relay; The common terminal of the fourth relay Y4 of the second network relay control board B2 is connected with the ignition-off common terminal of the ignition-off relay, the normally open contact is connected with the third input terminal X3 of the first network relay control board B1, and the normally closed contact is connected with the power output terminal VCC_OUT of the first network relay control board B1.