Burning jig

Abstract

The utility model discloses a burning jig, relates to the burning technical field, the burning jig includes template subassembly, pressure plate and burning structure, template subassembly includes the opposite setting up upper template and movable plate, the movable plate is equipped with the mounting part that is used for placing the mainboard to be tested, and the mounting part is equipped with the upper template and the movable plate. At least one of the upper die plate and the movable plate can move in the direction close to or away from the other one under the action of external force. The pressing plate is located between the upper template and the movable plate, and the pressing plate can move in the vertical direction so as to press the mainboard to be tested on the movable plate; the burning structure comprises a plurality of burning guide connection parts which are arranged at intervals, one end of each burning guide connection part is used for being connected with a circuit, and the other end of each burning guide connection part is located in the installation part and used for making contact with the mainboard to be tested. The structure is simple in form and convenient for miniaturization design, so that the device can be arranged in an office area and is convenient to carry, the occupied area of a test site can be reduced, the cost of test equipment is reduced, and the pressing plate and the upper template are jointly matched, pressed and fixed so as to be convenient to assemble and disassemble.

Description

Technical Field

[0001] This utility model relates to the field of programming technology, and in particular to a programming fixture. Background Technology

[0002] A programming fixture is a tool used to assist in controlling the position or movement of the chip, primarily for programming. Its main functions include ensuring chip stability during the programming process, establishing a stable electrical connection between the chip and the circuit board, protecting the chip and circuit board from external environmental interference, and improving production efficiency. Through precise clamping and positioning, the programming fixture ensures that current can be smoothly transferred from the circuit board to the chip, thereby achieving successful chip programming.

[0003] However, due to the high precision and reliability requirements of the programming fixture, and its large weight and size, it is difficult to transport. Researchers who want to conduct programming experiments must go to the laboratory, making the experiments both time-consuming and labor-intensive. Utility Model Content

[0004] The main purpose of this utility model is to propose a programming fixture that has a simple structure, is easy to miniaturize, is easy to transport and use, and reduces costs.

[0005] To achieve the above objectives, the present invention provides a programming fixture comprising:

[0006] The template assembly includes an upper template and a movable plate arranged opposite to each other. The movable plate is provided with a mounting part for placing the motherboard to be tested. At least one of the upper template and the movable plate can be moved towards or away from the other by an external force.

[0007] A pressure plate, located between the upper template and the movable plate, is movable in the vertical direction to press the motherboard to be tested onto the movable plate; and,

[0008] The programming structure includes multiple programming leads arranged at intervals. One end of each programming lead is used to connect to a circuit, and the other end is located in the mounting part for contacting the motherboard to be tested.

[0009] In one embodiment, both the upper template and the movable plate are capable of moving in the vertical direction under external force.

[0010] In one embodiment, the programming fixture further includes a first magnetic attraction structure, which includes two first magnetic attraction elements disposed opposite to each other, and the two first magnetic attraction elements are respectively disposed on the upper template and the pressure plate.

[0011] In one embodiment, the programming fixture further includes a second magnetic attraction structure, which includes two opposing second magnetic attraction elements, which are respectively disposed on the movable plate and the pressure plate.

[0012] In one embodiment, the programming fixture further includes two first magnetic structures, wherein two first magnetic elements located on the pressure plate are arranged along the diagonal of the pressure plate;

[0013] The second magnetic attraction structure is provided in two parts. The two second magnetic attraction components located on the pressure plate are arranged along the diagonal of the pressure plate, and the diagonal of the two second magnetic attraction components intersects with the diagonal of the two first magnetic attraction components.

[0014] In one embodiment, a plurality of positioning protrusions are provided on the lower end surface of the pressure plate, and the plurality of positioning protrusions are arranged at intervals. The positioning protrusions are used to press the end of the main board to be tested that is positioned upward on the movable plate.

[0015] In one embodiment, a clearance hole is provided in the middle of the pressure plate, the clearance hole being used to partially expose the motherboard to be tested on the movable plate; and / or,

[0016] The burning fixture includes multiple guide pillars, the lower ends of which are fixed to the movable plate, and the pressure plate and the upper template are slidably mounted on the multiple guide pillars.

[0017] In one embodiment, the mounting part includes a mounting boss located in the middle of the movable plate, and a groove is provided on the side of the mounting boss facing the upper template, the groove being adapted to the shape of the motherboard to be tested.

[0018] In one embodiment, the bottom of the groove is provided with a plurality of spaced-apart limiting protrusions, which are arranged circumferentially along the groove, and each limiting protrusion is used to insert into a corresponding positioning hole on the motherboard to be tested.

[0019] In one embodiment, the upper template and / or the movable plate and / or the pressure plate are made of plastic.

[0020] In this invention, the motherboard to be tested is placed inside the mounting section of a movable plate. A pressure plate continuously presses down, holding and fixing the motherboard to the movable plate. The operator manually moves the upper template and the movable plate relative to each other, causing the upper template, movable plate, and pressure plate to fit together. This presses and fixes the motherboard to be tested between the movable plate and the pressure plate, maintaining a stable electrical connection between the programming leads and the programming location on the motherboard, thus completing the programming experiment. This structure is simple and easy to miniaturize, allowing it to be placed in an office area for easy transport. It reduces the space occupied by the testing area and the cost of testing equipment. The pressure plate and upper template work together to press and fix the motherboard to be tested, resulting in a simple structure that is easy to assemble and disassemble. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of the first embodiment of the programming fixture provided by this utility model;

[0023] Figure 2 for Figure 1 A front view diagram showing the fit between the upper and middle templates and the pressure plate;

[0024] Figure 3 for Figure 1 Schematic diagram of the intermediate pressure plate;

[0025] Figure 4 for Figure 1 A top view of the movable panel.

[0026] Explanation of icon numbers:

[0027] 100. Burning fixture; 1. Upper template; 2. Movable plate; 21. Mounting boss; 211. Groove; 22. Limiting protrusion; 3. Pressure plate; 31. Positioning protrusion; 32. Clearance hole; 4. Burning guide part; 5. First magnetic suction component; 6. Second magnetic suction component; 7. Guide post.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "α and / or B" includes solution α, solution B, or a solution where α and B are simultaneously satisfied. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] A programming fixture is a tool used to assist in controlling the position or movement of the chip, primarily for programming. Its main functions include ensuring chip stability during the programming process, establishing a stable electrical connection between the chip and the circuit board, protecting the chip and circuit board from external environmental interference, and improving production efficiency. Through precise clamping and positioning, the programming fixture ensures that current can be smoothly transferred from the circuit board to the chip, thereby achieving successful chip programming.

[0033] The most common programming jig mechanisms currently available generally consist of an upper mold and a lower mold, usually made of steel plate. The upper mold is driven by a handle and related linkage mechanisms. While this meets the requirements for high precision and high reliability, the programming jig is heavy and bulky, making it difficult to transport. Researchers who want to conduct programming experiments must go to the laboratory, making the experiments both time-consuming and labor-intensive.

[0034] Based on this, the present invention proposes a programming fixture with a simple structure, which is easy to miniaturize, easy to transport and use, and reduces costs.

[0035] For details, please refer to Figures 1 to 2 The programming fixture 100 includes a template assembly, a pressure plate 3, and a programming structure. The template assembly includes an upper template 1 and a movable plate 2 disposed opposite to each other. The movable plate 2 has a mounting portion for placing the motherboard to be tested. At least one of the upper template 1 and the movable plate 2 can be moved towards or away from the other by an external force. The pressure plate 3 is located between the upper template 1 and the movable plate 2. The pressure plate 3 can move in the vertical direction to press the motherboard to be tested onto the movable plate 2. The programming structure includes a plurality of programming conductive portions 4 arranged at intervals. One end of the plurality of programming conductive portions 4 is used to connect to the circuit, and the other end is located in the mounting portion for contacting the motherboard to be tested.

[0036] In this invention, the motherboard to be tested is placed inside the mounting section of the movable plate 2. The pressure plate 3 continuously presses down to hold and fix the motherboard to be tested onto the movable plate 2. The operator manually moves the upper template 1 and the movable plate 2 relative to each other, thereby pressing and fixing the motherboard to be tested between the movable plate 2 and the pressure plate 3. This maintains a stable electrical connection between the programming guide 4 and the programming position on the motherboard to be tested, thus completing the programming experiment. This structure is simple and easy to miniaturize, allowing it to be placed in an office area for easy transport. It reduces the area occupied by the testing site and the cost of the testing equipment. The pressure plate 3 and the movable plate 2 work together to press and fix the motherboard, facilitating assembly and disassembly.

[0037] It should be noted that the programming connector 4 is a commonly used programming probe. This probe can connect to external devices to access the circuit. The specific structure of the probe is not limited in this utility model, as long as it can realize the programming function. In order to facilitate the installation guidance of the programming connector 4, it is preferable to set the programming connector 4 on the movable plate 2, and set the functional end of the programming connector 4 facing upward.

[0038] It should be understood that both the upper template 1 and the movable plate 2 can be movable in the vertical direction, or only one of them can be movable in the vertical direction. Considering the stability of the electrical connection of the burning conductor 4 during the burning process, in this embodiment, the upper template 1 can be moved in the vertical direction under external force. The movable plate 2 remains fixed. In use, the operator manually presses the upper template 1 and the pressure plate 3 to achieve pressing with the movable plate 2.

[0039] For optimal results, please refer to the following: Figure 2In some embodiments, the programming fixture 100 further includes a first magnetic attraction structure, which includes two first magnetic attraction elements 5 that are magnetically engaged and arranged opposite each other. The two first magnetic attraction elements 5 are respectively disposed on the opposite sides of the upper template 1 and the pressure plate 3. The two first magnetic attraction elements 5 are magnetically attracted to each other, so that the pressure plate 3 can be connected to the upper template 1 under the magnetic attraction, allowing a larger space to be reserved between the pressure plate 3 and the movable plate 2, facilitating the disassembly and assembly of the motherboard to be tested. It should be understood that the appropriate setting of the number and magnetism of the first magnetic attraction elements 5 can adjust the attraction force between the upper template 1 and the pressure plate 3.

[0040] In some embodiments, the programming fixture 100 further includes a second magnetic attraction structure, which includes two second magnetic attractors 6 that are magnetically engaged and arranged opposite each other. The two second magnetic attractors 6 are respectively disposed on opposite sides of the movable plate 2 and the pressure plate 3. The two second magnetic attractors 6 are magnetically attracted to each other, so that the pressure plate 3 and the movable plate 2 are always kept close to each other by magnetic attraction during the programming process, allowing the operator to free their hands without having to constantly press down on the upper template 1 during the programming process. It should be understood that the appropriate setting of the number and magnetism of the second magnetic attractors 6 can adjust the attraction force between the movable plate 2 and the pressure plate 3.

[0041] In this embodiment, please refer to Figure 1 and Figure 3 Simultaneously, a first magnetic attraction structure and a second magnetic attraction structure are provided. At this time, the pressure plate 3 has a first magnetic attraction element 5 and a second magnetic attraction element 6 respectively along its vertical direction. Considering the setting of the magnetic attraction force and the stability of force distribution, two of each type of magnetic attraction structure are provided. Specifically, two first magnetic attraction elements 5 are provided on the upper end surface of the pressure plate 3, and two second magnetic attraction elements 6 are provided on the lower end surface. The two first magnetic attraction elements 5 and the two second magnetic attraction elements 6 are arranged diagonally along the pressure plate 3, and the diagonals of the two second magnetic attraction elements 5 intersect with the diagonals of the two first magnetic attraction elements 6. This ensures that the magnetic components on the pressure plate 3 are distributed at the four corners of the pressure plate, and the magnetic attraction elements on the upper and lower end surfaces are staggered, thus avoiding mutual interference of magnetic attraction forces.

[0042] It should be noted that in this embodiment, the first magnetic component 5 and the second magnetic component 6 are respectively disposed on the end faces of the corresponding components, so that they can directly contact each other when the magnetic force is engaged, thereby improving the magnetic force effect. The magnetic force should be sufficient to ensure that the corresponding components are engaged together, and also allow the operator to manually separate the two magnetically engaged components after the programming is completed.

[0043] Considering the shape and positioning of the motherboard to be tested, multiple positioning protrusions 31 are provided on the lower end surface of the pressure plate 3. The multiple positioning protrusions 31 are arranged at intervals to press and hold the upward-facing end of the motherboard to be tested on the movable plate 2. The multiple positioning protrusions 31 can be arranged along the circumferential direction, or they can be staggered according to the shape of the motherboard to be tested. The height of the multiple positioning protrusions 31 can be the same or different depending on the positioning position. This utility model does not limit this.

[0044] Meanwhile, considering the components of the motherboard to be tested, each positioning protrusion 31 can be fitted with an insulating flexible pad at its end.

[0045] Furthermore, a clearance hole 32 is provided in the middle of the pressure plate 3. The clearance hole 32 is used to partially expose the motherboard to be tested on the movable plate 2. It should be understood that, considering the different sizes of electronic components on the motherboard to be tested and the non-fixed shape of the product casing supporting the motherboard to be tested, the clearance hole 32 is designed to provide reasonable clearance and avoid pressure interference or damage to the product.

[0046] Based on the above embodiments, multiple positioning protrusions 31 are evenly arranged along the circumferential direction of the clearance hole 32, and the multiple positioning protrusions 31 have the same size.

[0047] To ensure the straight alignment of the upper template 1 and the pressure plate 3, the programming fixture 100 includes multiple guide posts 7. The lower ends of the multiple guide posts 7 are fixed to the movable plate 2, and the pressure plate 3 and the upper template 1 are slidably mounted on the multiple guide posts 7. The pressure plate 3 and the upper template 1 are provided with corresponding through holes for the guide posts 7 to pass through, and are guided by shaft holes. This application provides four guide posts 7, corresponding to the four corners of the movable plate 2 respectively.

[0048] It should be understood that, depending on the size and shape of the template, the number of guide posts 7 can be two, three, or even six, and this application does not impose any restrictions.

[0049] For further details, please refer to Figure 4 The mounting section includes a mounting boss 21 located in the middle of the movable plate 2. A groove 211 is provided on the side of the mounting boss 21 facing the upper template 1. The groove 211 is designed to fit the shape of the motherboard to be tested. The contoured design of the groove 211 helps ensure the positioning effect of the motherboard to be tested. For example, when the motherboard to be tested is a watch motherboard, the shape of the groove 211 corresponds to the outline of the watch.

[0050] It should be noted that the size of the mounting boss 21 on the horizontal plane is smaller than that of the pressure plate 3 and the movable plate 2, thus forming a stepped structure on the movable plate 2. Therefore, when the pressure plate 3 and the upper template 1 are pressed together with the movable plate 2, the pressure plate 3 and the movable plate 2 are separated by the mounting boss 21, forming a certain gap. By reasonably setting the size and thickness of the mounting boss 21 on the horizontal plane, after the burning is completed, it is easy for the operator to put his hand into the gap to pull the upper template 1 and the pressure plate 3 apart from the movable plate 2.

[0051] Based on the above embodiments, when setting the second magnetic chuck 6, the second magnetic chuck 6 should be set on the mounting boss 21.

[0052] Furthermore, the bottom of the groove 211 is provided with multiple spaced-apart limiting protrusions 22, each of which is used to insert into a corresponding positioning hole on the motherboard under test. This axial hole positioning mechanism prevents the motherboard under test from shifting. It should be understood that, to facilitate contact between the programming guide 4 and the motherboard under test, multiple through holes can be formed in the bottom wall of the groove 211 for the programming guide 4 to pass through; these through holes and the limiting protrusions 22 should be spaced apart.

[0053] In this embodiment, three limiting protrusions 22 are provided, and the line connecting the three limiting protrusions 22 forms a triangle, thereby forming a stable support limit.

[0054] It should be noted that the upper template 1 and / or the movable plate 2 and / or the pressure plate 3 are made of plastic. Plastic is lightweight, which helps reduce the volume of the burning fixture 100. In this embodiment, it is preferable that the upper template 1, the movable plate 2, and the pressure plate 3 are all made of acrylic sheets. Acrylic sheets are lightweight and transparent, which not only reduces the size of the fixture but also facilitates observation of the burning progress and status.

[0055] Taking the motherboard under test as a watch motherboard as an example, the working process of the programming jig 100 is as follows:

[0056] In the initial state, the movable pressure plate 3 or the upper template 1 is moved so that they are magnetically attracted together, leaving a large space. During the test, the watch motherboard is embedded in the contoured groove 211. During the test, the movable plate 2 and the watch motherboard remain stationary. The operator manually presses the upper template 1, causing the pressure plate 3 to continuously press down. During this process, the bottom of the pressure plate 3 and the top of the movable plate 2 are magnetically attracted together. At this time, the positioning protrusion 31 on the pressure plate 3 abuts against the watch motherboard, thus playing a fixing role. The programming connector 4 is aligned with the part of the watch motherboard that needs to be programmed. The external device is turned on and works according to the set program, so that the current flows through the programming connector 4 into the motherboard and enters the chip to complete the programming test.

[0057] This simple structure allows for miniaturization to fit product dimensions, enabling operators to quickly perform motherboard programming tests in the office area. This reduces investment in measurement and experimental equipment, minimizes the space required for measurement, and improves the utilization rate and testing efficiency of existing equipment, facilitating research.

[0058] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A programming jig, characterized in that, include: The template assembly includes an upper template and a movable plate arranged opposite to each other. The movable plate is provided with a mounting part for placing the motherboard to be tested. At least one of the upper template and the movable plate can be moved towards or away from the other by an external force. A pressure plate, located between the upper template and the movable plate, is movable in the vertical direction to press the motherboard to be tested onto the movable plate; and, The programming structure includes multiple programming leads arranged at intervals. One end of each programming lead is used to connect to a circuit, and the other end is located in the mounting part for contacting the motherboard to be tested.

2. The programming fixture as described in claim 1, characterized in that, Both the upper template and the movable plate can move in the vertical direction under external force.

3. The programming fixture as described in claim 1, characterized in that, The burning fixture also includes a first magnetic attraction structure, which includes two first magnetic attraction elements arranged opposite to each other, and the two first magnetic attraction elements are respectively disposed on the upper template and the pressure plate.

4. The programming fixture as described in claim 1 or 3, characterized in that, The burning fixture also includes a second magnetic attraction structure, which includes two opposing second magnetic attraction components, which are respectively disposed on the movable plate and the pressure plate.

5. The programming fixture as described in claim 4, characterized in that, The programming fixture also includes two first magnetic structures, wherein the two first magnetic components located on the pressure plate are arranged along the diagonal of the pressure plate; The second magnetic attraction structure is provided in two parts. The two second magnetic attraction components located on the pressure plate are arranged along the diagonal of the pressure plate, and the diagonal of the two second magnetic attraction components intersects with the diagonal of the two first magnetic attraction components.

6. The programming fixture as described in claim 1, characterized in that, The lower end surface of the pressure plate is provided with a plurality of positioning protrusions, which are arranged at intervals. The positioning protrusions are used to press and hold the end of the main board to be tested facing upward on the movable plate.

7. The programming fixture as described in claim 1, characterized in that, The pressure plate has a clearance hole in its center, which is used to partially expose the motherboard to be tested on the movable plate; and / or, The burning fixture includes multiple guide pillars, which are fixed to the movable plate. The pressure plate and the upper template are slidably mounted on the multiple guide pillars.

8. The programming fixture as described in claim 1, characterized in that, The mounting part includes a mounting boss located in the middle of the movable plate, and a groove is provided on the side of the mounting boss facing the upper template. The groove is used to adapt to the shape of the motherboard to be tested.

9. The programming fixture as described in claim 8, characterized in that, The bottom of the groove is provided with multiple limiting protrusions, which are arranged circumferentially along the groove. Each limiting protrusion is used to insert into the corresponding positioning hole on the motherboard to be tested.

10. The programming fixture as described in claim 1, characterized in that, The upper template and / or the movable plate and / or the pressure plate are made of plastic.

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