Printed circuit board assembly burning tool

Abstract

The invention discloses a PCBA burning tool which comprises a switching structure and a burning test structure, the switching structure and the burning test structure are connected through a wire, and the switching structure comprises a burning interface and a test interface; the burning interface is used for being externally connected with different types of PCBA adapter plates, and switching of different distances and different pin numbers is carried out. The test interface is used for externally connecting test equipment and transmitting test data of the PCBA board; the burning test structure comprises a gold plating ejector pin and is used for burning the HDBS PCBA according to different types of external PCBA adapter plates and testing the function of the PCBA through external test equipment. According to the PCBA burning tool, the burning and testing requirements of different types of HDBS PCBAs can be met.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of burning technology, and in particular to a burning tool for a hydraulic decoupling brake system (HDBS, Hydraulic Decoupling Brake System) printed circuit board assembly (PCBA, Printed Circuit Board Assembly). Background Art

[0002] The automotive electronic control system is an important part of modern automobiles. It uses various sensors and actuators to realize various control functions of the automobile. Among them, the electronic control unit (ECU) hydraulic decoupling brake system (HDBS) is a common automotive electronic control unit, which is responsible for controlling various electronic devices of the car, such as the engine, transmission, brake system, etc. The printed circuit board assembly (PCBA) is an important part of the ECU. Various chips including microcontrollers (MCU) are mounted on the PCBA. In the production process of HDBS ECU, specific programs need to be burned into the MCU to realize its various functions. Since the MCU is mounted on the PCBA, this process usually requires the use of a special PCBA burning tool.

[0003] Currently, the PCBA burning tooling on the production line can support multiple panels and the burning of different programs for different chips. A common solution is to use a large instrument to control the program through software programming and burn the PCBA on the production line. However, the equipment is too large, the manufacturing cost is high, and software programming is required.

[0004] The existing HDBS PCBA burning tooling usually includes a base with multiple ejector pins on the base, which correspond to the pads on the PCBA. When in use, the PCBA is placed on the base, and then the PCBA and the ejector pins are connected by pressing, thereby completing the electrical connection and program burning of the PCBA.

[0005] However, there are some problems with the existing PCBA ECU burning-in tooling. First, since the PCBA sizes of different products are different, different burning-in tooling needs to be designed for different PCBAs, which increases production costs. Secondly, during the use of the existing burning-in tooling, improper operation or wear may cause poor contact between the ejector pin and the pad on the PCBA, thereby affecting the quality of program burning. Moreover, the existing burning-in tooling has no protection against misoperation, which can easily damage the PCBA, and it is inconvenient to repair if damaged. In addition, the existing burning-in tooling can only meet the burning requirements of the PCBA, and cannot test and verify the functions of the PCBA or when testing the basic functions of the PCBA, it may not be able to accurately simulate the working state of the PCBA in the actual working environment, resulting in inaccurate test results. Summary of the invention

[0006] In view of this, an embodiment of the present application provides a PCBA burning tool, which can at least solve the aforementioned technical problems such as high production cost, poor contact during the burning process, no protection against misoperation, inconvenience in maintenance, and inability to test and verify the functions of the PCBA.

[0007] According to a first aspect of an embodiment of the present application, a PCBA burning tool is provided, the burning tool comprising: a transfer structure, a burning test structure, the transfer structure and the burning test structure are connected by a wire, wherein:

[0008] The transfer structure includes a burning interface and a test interface; the burning interface is used to connect different types of PCBA transfer boards to transfer different spacings and different pin numbers; the test interface is used to connect external test equipment to transmit PCBA board test data;

[0009] The burning test structure includes a gold-plated ejector pin, which is used to burn the HDBS PCBA according to different types of external PCBA adapter boards, and to test the function of the PCBA board through an external test device.

[0010] In some exemplary embodiments, the burning test structure further includes: a base, a carrier plate, a backrest plate, a push rod, a push rod handle, and a clamping pad; a top plate is provided; wherein,

[0011] The gold-plated ejector pin is arranged on the base and connected to the transfer structure through a wire;

[0012] The carrier board is located above the base, with a gap between the carrier board and the base, and is used to carry the PCBA board to be burned or tested; the carrier board is provided with ejector pin holes corresponding to the positions of the gold-plated ejector pins, and the gold-plated ejector pins pass through the ejector pin holes;

[0013] The backrest plate is located behind the base and is used to mount the top rod;

[0014] The push rod is installed on the backrest plate and can move downward under the action of external force; a push rod handle is arranged at the upper end of the push rod, and a hand clamping pad is connected to the lower end;

[0015] The top plate is fixedly installed under the clamping pad;

[0016] During the burning or testing process, pull the ejector handle to press the ejector down on the clamp pad and the top plate, and the gold-plated ejector pin passes through the ejector pin hole reserved on the carrier board and contacts the PCBA board to be burned or tested placed on the carrier board to complete the burning or testing work.

[0017] In some exemplary embodiments, the base includes: a panel, a bottom plate, a rear plate, a front plate, a left plate, a right plate, and a box body formed by the above structures; the burning interface and the test interface are located on the left plate and are connected to the gold-plated ejector pins through wires inside the box body.

[0018] In some exemplary embodiments, the burn-in test structure further includes a guide post, a guide plate, and a guide post; wherein,

[0019] The guide post and guide plate are fixedly mounted on the backrest plate and are used to fix the guide post;

[0020] The guide column is installed on the guide column guide plate to guide the top plate to prevent displacement or angle tilt during the downward pressing process of the top plate.

[0021] In some exemplary embodiments, the top plate includes a guide post through hole, and the guide post passes through the guide post through the guide post through the hole.

[0022] In some exemplary embodiments, the burn-in test structure further includes a backrest reinforcement plate, which is located behind the backrest plate and is used to assist in supporting the backrest plate.

[0023] In some exemplary embodiments, the burning test structure further includes a hand clamping fixing plate, and the backrest plate is connected to the push rod handle via the backrest hand clamping fixing plate to form a stable structure.

[0024] In some exemplary embodiments, the left board also includes a power interface and a safety structure, wherein the power interface is used to connect to a programmable power supply; and the safety structure is used to prevent erroneous operation after the power is turned on.

[0025] In some exemplary embodiments, the gold-plated ejector pins include pointed gold-plated ejector pins and diamond-head gold-plated ejector pins; the pointed gold-plated ejector pins contact the PCBA pads to ensure the accuracy of signal contact, and the diamond-head gold-plated ejector pins contact the PCBA perforations to ensure the stability of signal contact.

[0026] In some exemplary embodiments, the carrier is a black antistatic FR-4 grade material, 190.49 mm long, 174.53 mm wide, and 5 mm thick;

[0027] The panel is made of black FR-4 grade material, 280mm long, 280mm wide and 10mm thick;

[0028] The bottom plate is made of black bakelite, 280 mm long, 280 mm wide and 8 mm thick;

[0029] The top plate is made of antistatic acrylic material, 188.01 mm long, 143.37 mm wide, and 10 mm thick;

[0030] The backrest hand clamp fixing plate is made of black bakelite material with a length of 120mm, a width of 120mm and a thickness of 10mm;

[0031] The guide post and guide plate are made of black bakelite, 140 mm long, with a distance of 29 mm from the wide side to the right side of the first bolt hole and 111 mm from the left side of the second bolt hole, and a thickness of 10 mm;

[0032] The backrest reinforcement plate black bakelite material includes two pieces, 261.1mm long, 50mm wide, and 10mm thick; the distance from the long side to the center of the first bolt hole is 15mm; the distance to the center of the second bolt hole is 35mm; the distance from the wide side to the center of the first bolt hole is 40mm; the distance from the wide side to the center of the second bolt hole is 132mm; the distance from the wide side to the center of the third bolt hole is 222mm;

[0033] The backrest board is made of black bakelite, 261.1 mm long, 140 mm wide and 10 mm thick; the distance from the wide side to the center of the first bolt hole is 20 mm, the distance from the wide side to the center of the second bolt hole is 70 mm, and the distance from the wide side to the center of the third bolt hole is 120 mm;

[0034] The back plate is made of black bakelite, 280 mm long, 80 mm wide, 10 mm thick, with a spacing of 35 mm from the wide side to the center of the first bolt hole and 245 mm from the wide side to the center of the second bolt hole;

[0035] The front plate is made of black bakelite, 280 mm long, 80 mm wide and 10 mm thick; the distance from the wide side to the center of the first bolt hole is 35 mm, and the distance from the wide side to the center of the second bolt hole is 245 mm;

[0036] The left plate is made of black bakelite, 260mm long, 80mm wide, and 10mm thick. The distance from the long side to the center of the first bolt hole is 20mm; the distance to the center of the second bolt hole is 60mm; the distance from the wide side to the center of the first bolt hole is 45mm; the distance from the wide side to the center of the second bolt hole is 215mm;

[0037] The grip pad is made of FR-4 grade material, 60mm long, 40mm wide and 12mm thick;

[0038] The guide post is a cylinder with a diameter of 8 mm and a length of 159 mm.

[0039] The convenient HDBS PCBA burning tooling provided in the embodiment of the present application can meet the burning and testing requirements of HDBS PCBAs of different models; the carrier board and the base are suspended in the air, which can effectively protect the gold-plated ejector pins and prevent the ejector pins from being worn and causing poor contact between the ejector pins and the pads on the PCBA; the top plate is used for the downward pressing operation, which avoids the technical problem of poor contact between the ejector pins and the pads on the PCBA due to improper operation during use, thereby affecting the quality of program burning; a safety structure is provided to prevent damage to the PCBA caused by misoperation; the components are detachable, and damage can be easily repaired; and a test interface is provided to test and verify the functions of the PCBA. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0041] Figure 1 The front view of the HDBS PCBA burning tooling of the embodiment of the present application is shown;

[0042] Figure 2 A top view of the HDBS PCBA burning tooling of an embodiment of the present application is shown;

[0043] Figure 3 A left view of the HDBS PCBA burning tooling according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0044] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0045] The essence of the technical solution of the embodiment of the present application is explained in detail below with reference to the accompanying drawings.

[0046] Figure 1 The front view of the HDBS PCBA burning tooling of the embodiment of the present application is shown. Figure 2 The top view of the HDBS PCBA burning tooling of the embodiment of the present application is shown. In order to more clearly show the structure of the various components of the burning tooling of the embodiment of the present application, and because the top plate is made of transparent acrylic material, Figure 2 The mid-ceiling board adopts a perspective effect. Figure 3 FIG. 4 shows a left view of the HDBS PCBA burning tooling of the embodiment of the present application, as shown in FIG. Figures 1 to 3 As shown, the PCBA burning tooling of the embodiment of the present application includes: a transfer structure and a burning test structure, wherein the transfer structure and the burning test structure are connected by wires, wherein:

[0047] The transfer structure includes a burning interface 21 and a test interface 22; the burning interface 21 is used to connect different types of PCBA transfer boards to transfer different spacings and different pin numbers; the test interface 22 is used to connect external test equipment to transmit PCBA board test data;

[0048] The burning test structure includes a gold-plated ejector pin 23, which is used to burn the HDBS PCBA according to different types of external PCBA adapter boards, and to test the function of the PCBA board through an external test device. Specifically, the burning tooling described in the embodiment of the present application uses high-quality gold-plated ejectors of various forms to ensure that the ejectors are in good contact with the pads on the PCBA, thereby ensuring the quality of program burning. Specifically, the gold-plated ejector pin has good conductivity and stability, which can effectively prevent poor contact problems caused by improper operation or wear, and the burning tooling described in the embodiment of the present application uses needles of different forms for different contact positions with the PCBA. The gold-plated ejector pin 23 of the embodiment of the present application includes a pointed gold-plated ejector pin 231 with strong puncture ability and a diamond-headed gold-plated ejector pin 232 with high stability; the pointed gold-plated ejector pin 231 contacts the PCBA pad to ensure the accuracy of the signal contact, and the diamond-headed gold-plated ejector pin 232 contacts the PCBA perforation to ensure the stability of the signal contact.

[0049] In the embodiment of the present application, the burning test structure further includes a base 24, a carrier plate 1, a backrest plate 8, a push rod 14, a push rod handle 15, and a clamping pad 12; a top plate 4 is provided; wherein,

[0050] The gold-plated ejector pin 23 is disposed on the base 24 and connected to the transfer structure through a wire;

[0051] The carrier board 1 is located above the base 24, with a gap between the carrier board 1 and the base 24, and is used to carry the PCBA board to be burned or tested; the carrier board 1 is provided with an ejector pin hole corresponding to the position of the gold-plated ejector pin 23, and the gold-plated ejector pin 23 passes through the ejector pin hole;

[0052] The backrest plate 8 is located behind the base 24 and is used to mount the top rod 14;

[0053] The push rod 14 is installed on the backrest plate 8 and can move downward under the action of external force; a push rod handle 15 is provided at the upper end of the push rod 14, and a clamping pad 12 is connected to the lower end;

[0054] The top plate 4 is fixedly installed below the clamp pad 12, and a plurality of presser feet 29 are arranged on the top plate to press against the PCBA board to be burned or tested during the pressing process;

[0055] During the burning or testing process, the ejector handle 15 is pulled to make the ejector 14 press down the clamp pad 12 and the top plate 4, and the gold-plated ejector pin 23 passes through the ejector pin hole reserved on the carrier board 1 and contacts the PCBA board to be burned or tested placed on the carrier board, thereby completing the burning or testing work.

[0056] The base 24 includes: a panel 2, a bottom plate 3, a rear plate 9, a front plate 10, a left plate 11, a right plate, and a box body composed of the above structure; the burning interface 21 and the test interface 22 are located on the left plate 11, and are connected to the gold-plated ejector pin 23 through a wire in the box body.

[0057] In the embodiment of the present application, the gold-plated ejector pin is a gold-plated pin ejector pin, including a pointed gold-plated pin ejector pin and a diamond-head gold-plated pin ejector pin.

[0058] In the embodiment of the present application, the burning interface 21 can be connected to the gold-plated ejector pin 23 through DB15 wiring or CD9 wiring, and is detachable from each component. The burning interface 21 is externally connected to different types of PCBA adapter boards. When an internal circuit or PCBA adapter board fails, it can be repaired by simply replacing the problematic circuit or adapter board. The repair cost is low, and it can also adapt to the burning requirements of various different pin requirements. In actual application scenarios, after the gold-plated pin ejector pin of the tooling contacts the burning position of the PCBA board, the other end of the gold-plated pin ejector pin is connected to the designed PCBA adapter board through DB15 and the burning interface 21 to achieve different spacings and different pin numbers. The connection can adapt to the burning requirements of various chips and various burning tools.

[0059] The burning tooling described in the embodiment of the present application can not only realize the burning function, but also perform functional testing on the PCBA board. Specifically, the test interface 22 is connected to the gold-plated ejector pin 23 through a connecting wire, thereby realizing the use of the BootLoader function and other test verifications related to the PCBA function. In actual application scenarios, after the gold-plated pin ejector pin of the tooling contacts the PCBA board CAN communication, the other end is connected to the DB9 interface through a wire, and the DB9 interface leads to the CAN line. The communication between the computer and the PCBA can be realized through the CAN line, thereby completing a variety of functional tests.

[0060] The burning tooling described in the embodiment of the present application, the burning test structure also includes a guide post guide plate 6 and a guide post 13; wherein the guide post guide plate 6 is fixedly mounted on the backrest plate 8 for fixing the guide post 13; the guide post 13 is mounted on the guide post guide plate 6 for guiding the top plate 4 to prevent displacement or angle tilt during the pressing process of the top plate 4. The top plate 4 includes a guide post through hole 26, and the guide post 13 passes through the guide post through hole 26.

[0061] In an embodiment of the present application, the burning test structure also includes a backrest reinforcement plate 7 and a clamp hand fixing plate 5. The backrest reinforcement plate 7 is located behind the backrest plate 8 and is used to auxiliary support the backrest plate 8. The backrest plate 8 is connected to the push rod handle 15 through the backrest clamp hand fixing plate 5 to form a stable structure.

[0062] like Figure 3 As shown, in the embodiment of the present application, the left plate 11 also includes a power interface 27 and a safety structure 28. The power interface 27 is used to connect to a programmable power supply; the safety structure 28 is used to prevent misoperation after the power is turned on. In the embodiment of the present application, the safety structure 28 is an ignition switch.

[0063] Specifically, the burning tooling described in the embodiment of the present application supports multiple voltage inputs, and 9-16V voltage input is usually used. A power switch device and a power status indicator light are also provided on the left plate 11 to ensure safety and stability during operation. In actual application scenarios, the burning tooling described in the embodiment of the present application is connected to a programmable power supply through a wire, the required input voltage value is selected, and the PCBA is powered on and off through the power switch device. At the same time, it is necessary to press the ignition switch after power-on to prevent safety problems caused by misoperation.

[0064] In the embodiment of the present application, a plurality of boundary fixed columns 30 are arranged on the carrier board 1 for positioning the PCBA to be burned. The position and number of the columns 30 can be set according to the structure of the HDBS PCBA board to be burned, or the columns 30 can be set as position-adjustable columns to match different types of PCBA boards. By adjusting the position of the columns 30 on the carrier board, various types of chips can be matched. Figures 1 to 3 The positions in the figure are only for reference. Several support pads 31 are also provided on the carrier board 1. The height of the support pads 31 is slightly lower than the height of the tip of the gold-plated ejector pin. The support pads 31 are used to support the PCBA to be burned during the burning process to prevent the gold-plated ejector pin from being damaged due to excessive pressure on the top board. The position and number of the support pads 31 can be set according to actual needs. Figures 1 to 3 The position in the figure is only for reference and can also be set as an adjustable support pad. In addition, multiple gold-plated ejector pins with adjustable positions can be added to match different PCBA adapter boards to realize the burning of various chips and test some key test points of the PCBA after burning, so as to meet the burning and testing requirements of different types of chips and reduce production costs.

[0065] Compared with the existing technology, the PCBA burning tooling described in the embodiment of the present application has strong adaptability and can adapt to HDBS PCBAs of various sizes. At the same time, the reserved burning pin ejector can support the burning of various different chips through an external adapter board, which greatly improves the adaptability of the tooling, can adapt to the PCBA burning requirements of multiple projects, and reduces the production cost of the enterprise. The gold-plated ejector has good conductivity and stability. High-quality gold-plated ejectors in various forms are used to ensure that the ejector has good contact with the pads on the PCBA, and the signal stability is higher, thereby ensuring the quality of program burning. Through the cooperation of the carrier board and the top board, poor contact problems caused by improper operation or wear can be effectively prevented. Supports multiple voltage inputs, usually 9-16V voltage input, and a switch device and an ignition device are set to jointly control the power on and off, and an indicator light is set to prevent misoperation and ensure safety and stability during operation. A small PCBA adapter board is designed outside the burning tooling, with pluggable power cords, replaceable DB15 wiring, CD9 wiring, etc. It is highly detachable and replaceable, and can adapt to a variety of chips. For some simple problems that may occur, you only need to replace the problematic wires or adapter boards, and the repair cost is low. At the same time, it can also adapt to a variety of burning requirements with different pin requirements. In addition to realizing the burning function, the connection of the CAN line is also reserved, so that the function of the Boot Loader and other PCBA function-related test verifications can be verified.

[0066] The dimensions of the components of the burning tool described in the embodiment of the present application are as follows:

[0067] The carrier board 1 is made of black antistatic FR-4 grade material, 190.49 mm long, 174.53 mm wide and 5 mm thick;

[0068] The panel 2 is made of black FR-4 grade material, 280 mm long, 280 mm wide and 10 mm thick;

[0069] The bottom plate 3 is made of black bakelite, 280 mm long, 280 mm wide and 8 mm thick;

[0070] The top plate 4 is made of antistatic acrylic material, 188.01 mm long, 143.37 mm wide, and 10 mm thick;

[0071] The backrest hand clamp fixing plate 5 is made of black bakelite material with a length of 120 mm, a width of 120 mm and a thickness of 10 mm;

[0072] The guide post guide plate 6 is made of black bakelite, 140 mm long, with a distance of 29 mm from the wide side to the right side of the first bolt hole and 111 mm from the left side of the second bolt hole, and a thickness of 10 mm;

[0073] The backrest reinforcement plate 7 is made of black bakelite, including two pieces, 261.1mm long, 50mm wide and 10mm thick; the distance from the long side to the center of the first bolt hole is 15mm; the distance to the center of the second bolt hole is 35mm; the distance from the wide side to the center of the first bolt hole is 40mm; the distance from the wide side to the center of the second bolt hole is 132mm; the distance from the wide side to the center of the third bolt hole is 222mm;

[0074] The backrest board 8 is made of black bakelite, 261.1 mm long, 140 mm wide and 10 mm thick; the distance from the wide side to the center of the first bolt hole is 20 mm, the distance from the wide side to the center of the second bolt hole is 70 mm, and the distance from the wide side to the center of the third bolt hole is 120 mm;

[0075] The rear plate 9 is made of black bakelite, 280 mm long, 80 mm wide, 10 mm thick, with a spacing of 35 mm from the wide side to the center of the first bolt hole and 245 mm from the wide side to the center of the second bolt hole;

[0076] The front plate 10 is made of black bakelite, 280 mm long, 80 mm wide and 10 mm thick; the distance from the wide side to the center of the first bolt hole is 35 mm, and the distance from the wide side to the center of the second bolt hole is 245 mm;

[0077] The left plate 11 is made of black bakelite, 260 mm long, 80 mm wide, and 10 mm thick. The distance from the long side to the center of the first bolt hole is 20 mm; the distance to the center of the second bolt hole is 60 mm; the distance from the wide side to the center of the first bolt hole is 45 mm; and the distance from the wide side to the center of the second bolt hole is 215 mm.

[0078] The grip pad 12 is made of FR-4 grade material, 60mm long, 40mm wide, and 12mm thick;

[0079] The guide post 13 is a cylinder with a diameter of 8 mm and a length of 159 mm.

[0080] Among them, FR-4 is a code for a flame-resistant material grade, which represents the material specification that the resin material must be able to extinguish itself after burning. It is not a specific material name, but a material grade, which is usually used in circuit board manufacturing. FR-4 material is mainly a composite material made of quadrifunctional epoxy resin, filler and glass fiber. FR-4 material has the characteristics of stable electrical insulation performance, good flatness, smooth surface, no pits, standard thickness tolerance, etc., and is suitable for products with high-performance electronic insulation requirements.

[0081] It should be understood that "one embodiment" or "an embodiment" mentioned throughout the specification means that specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present invention, the size of the sequence number of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application. The above-mentioned sequence numbers of the embodiments of the present application are for description only and do not represent the advantages and disadvantages of the embodiments.

[0082] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0083] The above is only an embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A PCBA burning tool, It is characterized in that The burning tooling comprises a switching structure and a burning test structure, wherein the switching structure and the burning test structure are connected by wires, wherein: The transfer structure includes a burning interface and a test interface; the burning interface is used to connect different types of PCBA transfer boards to transfer different spacings and different pin numbers; the test interface is used to connect external test equipment to transmit PCBA board test data; The burning test structure includes a gold-plated ejector pin, which is used to burn the HDB SPCBA according to different types of external PCBA adapter boards, and to test the function of the PCBA board through an external test device.

2. The burning tool according to claim 1, It is characterized in that The burning test structure also includes: a base, a carrier plate, a backrest plate, a push rod, a push rod handle, a clamping pad; a top plate is set; wherein, The gold-plated ejector pin is arranged on the base and connected to the transfer structure through a wire; The carrier board is located above the base, with a gap between the carrier board and the base, and is used to carry the PCBA board to be burned or tested; the carrier board is provided with ejector pin holes corresponding to the positions of the gold-plated ejector pins, and the gold-plated ejector pins pass through the ejector pin holes; The backrest plate is located behind the base and is used to mount the top rod; The push rod is installed on the backrest plate and can move downward under the action of external force; a push rod handle is provided at the upper end of the push rod, and a hand clamp pad is connected at the lower end; The top plate is fixedly installed under the clamping pad; During the burning or testing process, pull the ejector handle to press the ejector down on the clamp pad and the top plate, and the gold-plated ejector pin passes through the ejector pin hole reserved on the carrier board and contacts the PCBA board to be burned or tested placed on the carrier board to complete the burning or testing work.

3. The burning tool according to claim 2, It is characterized in that The base comprises: a panel, a bottom plate, a rear plate, a front plate, a left plate, a right plate, and a box body formed by the above structures; the burning interface and the test interface are located on the left plate and are connected to the gold-plated ejector pins through wires in the box body.

4. The burning tool according to claim 2, It is characterized in that The burn-in test structure also includes a guide post, a guide plate, and a guide post; wherein, The guide post and guide plate are fixedly mounted on the backrest plate and are used to fix the guide post; The guide column is installed on the guide column guide plate to guide the top plate to prevent displacement or angle tilt during the downward pressing process of the top plate.

5. The burning tool according to claim 4, It is characterized in that The top plate includes a guide post through hole, and the guide post passes through the guide post through the guide post through hole.

6. The burning tool according to claim 2, It is characterized in that The burning test structure also includes a backrest reinforcement plate, which is located behind the backrest plate and is used to assist in supporting the backrest plate.

7. The burning tool according to claim 2, It is characterized in that The burning test structure also includes a hand clamping fixing plate, and the backrest plate is connected to the push rod handle through the backrest hand clamping fixing plate to form a stable structure.

8. The burning tool according to claim 2, It is characterized in that The left board also includes a power interface and a safety structure. The power interface is used to connect to a programmable power supply; the safety structure is used to prevent misoperation after the power is turned on.

9. The burning tool according to claim 1, It is characterized in that The gold-plated ejector pins include pointed gold-plated ejector pins and diamond gold-plated ejector pins; the pointed gold-plated ejector pins are in contact with the PCBA pads to ensure the accuracy of signal contact, and the diamond gold-plated ejector pins are in contact with the PCBA perforations to ensure the stability of signal contact.

10. The burning tool according to any one of claims 2 to 9, It is characterized in that The carrier board is made of black antistatic FR-4 grade material, 190.49 mm long, 174.53 mm wide, and 5 mm thick; The panel is made of black FR-4 grade material, 280mm long, 280mm wide and 10mm thick; The bottom plate is made of black bakelite, 280 mm long, 280 mm wide and 8 mm thick; The top plate is made of antistatic acrylic material, 188.01 mm long, 143.37 mm wide, and 10 mm thick; The backrest hand clamp fixing plate is made of black bakelite material with a length of 120mm, a width of 120mm and a thickness of 10mm; The guide post and guide plate are made of black bakelite, 140 mm long, with a distance of 29 mm from the wide side to the right side of the first bolt hole and 111 mm from the left side of the second bolt hole, and a thickness of 10 mm; The backrest reinforcement plate black bakelite material includes two pieces, 261.1mm long, 50mm wide, and 10mm thick; the distance from the long side to the center of the first bolt hole is 15mm; the distance to the center of the second bolt hole is 35mm; the distance from the wide side to the center of the first bolt hole is 40mm; the distance from the wide side to the center of the second bolt hole is 132mm; the distance from the wide side to the center of the third bolt hole is 222mm; The backrest board is made of black bakelite, 261.1 mm long, 140 mm wide and 10 mm thick; the distance from the wide side to the center of the first bolt hole is 20 mm, the distance from the wide side to the center of the second bolt hole is 70 mm, and the distance from the wide side to the center of the third bolt hole is 120 mm; The back plate is made of black bakelite, 280 mm long, 80 mm wide, 10 mm thick, with a spacing of 35 mm from the wide side to the center of the first bolt hole and 245 mm from the wide side to the center of the second bolt hole; The front plate is made of black bakelite, 280 mm long, 80 mm wide and 10 mm thick; the distance from the wide side to the center of the first bolt hole is 35 mm, and the distance from the wide side to the center of the second bolt hole is 245 mm; The left plate is made of black bakelite, 260mm long, 80mm wide, and 10mm thick. The distance from the long side to the center of the first bolt hole is 20mm; the distance to the center of the second bolt hole is 60mm; the distance from the wide side to the center of the first bolt hole is 45mm; the distance from the wide side to the center of the second bolt hole is 215mm; The grip pad is made of FR-4 grade material, 60mm long, 40mm wide and 12mm thick; The guide post is a cylinder with a diameter of 8 mm and a length of 159 mm.

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