Circuit board burning test fixture

Abstract

The utility model relates to the technical field of circuit board burning test equipment, and provides a circuit board burning test jig which comprises a jig body and a positioning clamp. One end of the jig body serves as a butt joint end in butt joint with a positioning clamp. The butt joint end is provided with a positioning piece used for positioning and inserting connection and a clamped part protruding outwards along the periphery of the jig body. The positioning clamp is arranged in the circuit board and is provided with a positioning jack and two clamping and pressing buckles which correspond to each other at an interval; the jig body can be in butt joint with the positioning clamp through the butt joint end, the positioning piece is correspondingly inserted into the inserted hole, and the clamping and pressing buckle is correspondingly clamped and fixed to the clamped part. According to the circuit board burning test fixture, the fixture body is clamped, fixed and inserted through the opposite clamping and pressing effects of the clamping and pressing buckles, and the circuit board burning test fixture has the advantages of being good in connection stability, not prone to being touched, toppled and separated and capable of being suitable for a low-temperature tin pin circuit board.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board burning test equipment, and in particular to a circuit board burning test fixture. Background Art

[0002] When the circuit board in the prior art is conducting a program burning test, a magnetic suction part is generally set in the burning test fixture and an iron sheet is set at the corresponding docking position of the circuit board. The burning test fixture can be docked with the circuit board by magnetic adsorption, so as to achieve rapid fixed docking and installation of the two. However, this method also has certain disadvantages. For example, the stability of magnetic fixation is poor, and adsorption force is only generated in the vertical direction. When it is subjected to a slight impact force in the horizontal direction, the burning fixture is very likely to fall over and separate, resulting in interruption of the program burning process; and after the pin point is reinforced with a low-temperature tin coating, the burning test fixture cannot be fixed by magnetic adsorption, which has certain limitations.

[0003] Therefore, there is an urgent need for a new type of burning test fixture in the market to solve the problems of poor adsorption connection stability and certain usage limitations of the burning test fixture fixed by magnetic attraction in the prior art. Utility Model Content

[0004] The disclosed embodiment provides a circuit board burning test fixture, in order to solve the problem that the burning test fixture in the prior art has poor adsorption connection stability and certain usage limitations.

[0005] The circuit board burning test fixture provided by the embodiment of the present disclosure includes a fixture body and a positioning fixture;

[0006] One end of the fixture body serves as a docking end for docking with the positioning fixture;

[0007] The butt joint end has a positioning piece for positioning and plugging, and a clamping portion protruding outward along the periphery of the fixture body;

[0008] The positioning fixture is installed in the circuit board and has a positioning receiving hole and two clamping buckles spaced correspondingly from each other;

[0009] The fixture body can be docked with the positioning fixture through the docking end, and the positioning piece is correspondingly inserted into the receiving hole, and the clamping buckle is correspondingly clamped on the clamping part.

[0010] In one possible implementation manner, the clamped portion is respectively disposed in two opposite side peripheral walls of the fixture body;

[0011] The clamped portion is configured as a clamped edge that protrudes outwardly away from the butt end.

[0012] In one possible implementation manner, along the docking and insertion direction of the fixture body, the front edge of the clamped portion is configured as a chamfered edge;

[0013] The rear side surface of the clamped portion is perpendicular to the side peripheral wall of the fixture body, or the rear side surface of the clamped portion is inclined at an acute angle to the side peripheral wall of the fixture body.

[0014] In one possible implementation, the clamping buckle includes a clamping folding plate;

[0015] The clamping folding plate comprises a first section, a second section and a third section connected in sequence;

[0016] The first section is flatly arranged on a surface of the circuit board;

[0017] The second section body extends upwardly at an acute angle to one end of the first section body;

[0018] The third section and one end of the second section are inclined upward at an obtuse angle and extend outwardly away from the side wall of the fixture body;

[0019] Wherein, the second section can abut against and squeeze the clamped portion;

[0020] A clamping portion for abutting and clamping the side wall of the fixture body is formed at a connecting corner between the second section and the third section.

[0021] In one possible implementation manner, the clamping buckle comprises at least two clamping folding plates which are parallel and spaced from each other;

[0022] And two clamping buckles are symmetrically arranged about the vertical center axis of the positioning fixture.

[0023] In one possible implementation, the fixture body includes a fixture seat and a replacement head;

[0024] The fixture seat is respectively provided with an electrical connector and electrical pins;

[0025] The replacement head is detachably mounted on one side of the fixture seat and serves as the docking end of the fixture seat;

[0026] The clamped portions are correspondingly arranged on two opposite side walls of the replacement head.

[0027] In one possible implementation manner, a recessed receiving portion is respectively provided in the opposite mounting sides of the fixture base and the replacement head;

[0028] The housing portion is correspondingly provided with a connecting assembly for detachably connecting the two.

[0029] In one possible implementation manner, the connection assembly includes a magnetic member and a matching member, and one of the magnetic member and the matching member is disposed in a receiving portion in the fixture seat, and the other is disposed in a receiving portion in the replacement head.

[0030] In one possible implementation, the fixture body further has a plurality of power connection pins;

[0031] The power connection pin is configured as a telescopic pin with elastic contraction function;

[0032] After the jig body is docked and fixed with the positioning fixture, one end of the telescopic pin is compressed and partially retracted, and abuts against the power connection point in the circuit board.

[0033] In one possible implementation, the positioning member is configured as a positioning telescopic rod;

[0034] The positioning telescopic rod has a compression spring for applying an extension elastic force, and when the positioning piece is inserted and abutted against the bottom wall of the positioning receiving hole, the compression spring can be compressed and contracted.

[0035] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0036] When the circuit board burning test fixture provided by the embodiment of the present disclosure is specifically installed and docked with the circuit board, the positioning fixture is first pre-fixed and set on the docking part to be tested in the circuit board, and then the positioning piece in the docking end of the fixture body is correspondingly inserted into the positioning receiving hole in the positioning fixture, and at this time, the clamping buckle in the positioning fixture can also be correspondingly clamped to the clamping part protruding outwardly on the periphery of the fixture body, so that the fixture body and the positioning fixture can be quickly docked and fixed through the opposite clamping action of two mutually spaced corresponding clamping buckles, so as to facilitate the subsequent burning test of the program in the circuit board.

[0037] Compared with the circuit board burning test fixture in the prior art which adopts the magnetic fixing method, the circuit board burning test fixture provided by the embodiment of the present disclosure adopts the opposite clamping action of the clamping buckles to realize the clamping and insertion of the fixture body, which has the beneficial effects of good connection stability, not being easily touched, tipped over and separated, and being applicable to low-temperature tin pin circuit boards.

[0038] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, in which:

[0040] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0041] Figure 1 A three-dimensional diagram of a circuit board burning test fixture provided by an embodiment of the present disclosure is shown;

[0042] Figure 2 An exploded view of the structure of a circuit board burning test fixture provided by an embodiment of the present disclosure is shown;

[0043] Figure 3 The figure shows the assembly front view of the circuit board burning test fixture provided by the embodiment of the present disclosure;

[0044] Figure 4 A partial structural diagram of a circuit board burning test fixture provided by an embodiment of the present disclosure is shown.

[0045] Explanation of the numbers in the figure: 1. fixture body; 11. positioning piece; 12. clamping part; 13. fixture seat; 14. replacement head; 15. power connection pin; 2. positioning fixture; 21. positioning socket; 22. clamping buckle; 221. first section; 222. second section; 223. third section. DETAILED DESCRIPTION

[0046] In order to make the purpose, features, and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0047] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0048] Combination Figure 1 and Figure 2As shown, the embodiment of the present disclosure provides a circuit board burning test fixture, which includes a fixture body 1 and a positioning fixture 2; one end of the fixture body 1 serves as a docking end docked with the positioning fixture 2; the docking end has a positioning piece 11 for positioning and plugging, and a clamping portion 12 protruding outward along the periphery of the fixture body 1; the positioning fixture 2 is installed in the circuit board, and has a positioning receiving hole 21, and two clamping buckles 22 spaced apart and corresponding to each other; the fixture body 1 can be docked with the positioning fixture 2 through the docking end, and the positioning piece 11 is correspondingly plugged into the positioning receiving hole 21, and the clamping buckle 22 is correspondingly clamped to the clamping portion 12.

[0049] When the circuit board burning test fixture is specifically installed and docked with the circuit board, the positioning fixture 2 is first pre-fixed and set on the docking part to be tested in the circuit board, and then the positioning piece 11 in the docking end of the fixture body 1 is correspondingly inserted into the positioning receiving hole 21 in the positioning fixture 2, and at this time, the clamping buckle 22 in the positioning fixture 2 can also be correspondingly clamped to the clamping part 12 protruding outwardly on the periphery of the fixture body 1. In this way, the fixture body 1 and the positioning fixture 2 can be quickly docked and fixed through the opposite clamping action of two mutually spaced corresponding clamping buckles 22, so as to facilitate the subsequent burning test of the program in the circuit board.

[0050] Compared with the circuit board burning test fixture in the prior art which adopts the magnetic fixing method, the circuit board burning test fixture provided by the embodiment of the present disclosure adopts the opposite clamping action of the clamping buckle 22 to achieve the clamping and insertion of the fixture body 1, which has the beneficial effects of good connection stability, not being easily touched, tipped over and separated, and being applicable to low-temperature tin pin circuit boards.

[0051] In one embodiment, the clamped portions 12 are respectively disposed in two opposite side peripheral walls of the fixture body 1 ; the clamped portions 12 are configured as clamped edges that are protruding outwards away from the butt end.

[0052] Specific, combined Figure 3 To further explain in detail, the clamped portion 12 is specifically configured as two side walls facing away from each other and at the butt ends, and the clamped edges protrude outward respectively, so that the clamped portion 12 will form a sudden protrusion structure in the side walls of the fixture body 1, so that when clamped by the clamping buckle 22, it can produce a sufficiently large blocking effect on the clamping buckle 22, so that the clamping buckle 22 can produce a sufficiently large "expansion" deformation, so that the clamping buckle 22 can apply a sufficiently large deformation clamping pressure on the clamped portion 12.

[0053] In addition, the specific protruding shape of the clamped portion 12 may be, but is not limited to, a protruding rectangular shape, a trapezoidal shape, a hemispherical shape, etc.

[0054] The specific arrangement of the clamped portion 12 has the beneficial effects of being simple in structure, being able to expand and support the clamping buckle 22 , and increasing the deformation clamping pressure of the clamping buckle 22 .

[0055] In one embodiment, along the docking and insertion direction of the fixture body 1, the front edge of the clamped portion 12 is set as a chamfered edge; the rear side surface of the clamped portion 12 is perpendicular to the side wall of the fixture body 1, or the rear side surface of the clamped portion 12 is inclined at an acute angle to the side wall of the fixture body 1.

[0056] Specific, combined Figure 3 Further detailed description, along the docking and insertion direction of the jig body 1, the front edge of the clamped portion 12 is set as a chamfered edge, which can be specifically a rounded corner or a chamfered angle, so that when the clamped portion 12 is inserted downward with the docking end of the jig body 1, the front end of the clamped portion 12 can form a gradually widening structure similar to an arrow shape, thereby facilitating the insertion of the clamped portion 12 into the clamping buckle 22; in addition, the rear side surface of the clamped portion 12 is vertically arranged with the side wall of the jig body 1, or the rear side surface of the clamped portion 12 is inclined at an acute angle to the side wall of the jig body 1, so that when the clamped portion 12 is fully inserted into place, the rear side surface of the clamped portion 12 can form a barb-like locking structure with the clamping buckle 22, thereby improving the clamping stability of the clamped portion 12 in the clamping buckle 22.

[0057] The specific structural arrangement of the clamped portion 12 has the beneficial effects of being easily inserted into the clamping buckle 22 and providing clamping stability in the clamped portion 12 .

[0058] In one embodiment, the clamping buckle 22 includes a clamping folding plate; the clamping folding plate includes a first segment 221, a second segment 222 and a third segment 223 connected in sequence; the first segment 221 is laid flat on the board surface of the circuit board; the second segment 222 extends upward at an acute angle to one end of the first segment 221; the third segment 223 extends outward at an obtuse angle to one end of the second segment 222 and is tilted upward and away from the side wall of the fixture body 1;

[0059] The second section 222 can abut against and be pressed against the clamped portion 12 ; a clamping portion for abutting against the side wall of the clamping fixture body 1 is formed at a connecting corner between the second section 222 and the third section 223 .

[0060] Specific, combined Figure 3In further detail, the clamping buckle 22 is set as a clamping folding plate, and the first segment 221, the second segment 222 and the third segment 223 of the clamping folding plate are sequentially connected to form a "Z"-shaped structure, so that when the clamping buckle 22 is subjected to the expansion effect, the connection angle between the second segment 222 and the first segment 221 increases, thereby generating a contraction deformation clamping pressure. Moreover, the clamping portion formed at the connection corner between the second segment 222 and the third segment 223 will form a line contact with the side wall of the pressing jig body 1 during extrusion, which can avoid the concentration of clamping stress and increase the contact area between the clamping buckle 22 and the side wall of the pressing jig body 1, thereby improving the clamping firmness.

[0061] The specific arrangement of the clamping folding plate in the clamping buckle 22 has the beneficial effects of being simple in structure and being able to stably and firmly clamp the side wall of the fixture body 1 .

[0062] In one embodiment, the clamping buckle 22 includes at least two clamping folding plates that are parallel and spaced apart from each other; and two clamping buckles 22 are symmetrically arranged about the vertical center axis of the positioning fixture 2.

[0063] Specific, combined Figure 3 To further explain in detail, at least two clamping folding plates are provided in the clamping buckle 22, and are arranged symmetrically about the vertical center axis of the positioning fixture 2, so that the two clamping folding plates can face each other to generate a squeezing force on the fixture body 1, ensuring the stability and centering of the fixture body 1.

[0064] Of course, the above-mentioned clamping buckle 22 can also be provided with a larger number of clamping folding plates, for example, four clamping folding plates are provided, which are respectively clamped on the four side walls of the positioning fixture 2, so as to further improve the clamping and limiting effect of the positioning fixture 2.

[0065] In one embodiment, the jig body 1 includes a jig seat 13 and a replacement head 14; the jig seat 13 is respectively provided with an electrical connector and an electrical pin 15; the replacement head 14 is detachably mounted on one side of the jig seat 13 and serves as a docking end of the jig seat 13; the clamping portion 12 is correspondingly arranged on two opposite side walls of the replacement head 14.

[0066] Specific, combined Figure 2 To further explain in detail, the fixture body 1 is specifically configured as a fixture seat 13 and a replacement head 14 with a separate structure, and the replacement head 14 is detachably installed on one side of the fixture seat 13 and serves as a docking end of the fixture seat 13. In this way, replacement heads 14 of different models and sizes can be flexibly adapted and replaced with the same fixture seat 13 according to different test working conditions of the circuit board, thereby further improving the universal adaptability of the circuit board burning test fixture.

[0067] The specific detachable connection method between the fixture base 13 and the replacement head 14 can be, but is not limited to, an elastic snap connection, a threaded connection, or the like.

[0068] In one embodiment, a recessed receiving portion is provided in the opposite installation sides of the fixture base 13 and the replacement head 14 , respectively; and a connecting component for detachably connecting the two is correspondingly provided in the receiving portion.

[0069] Specific, combined Figure 2 In further detail, a recessed receiving portion is provided in the relative installation sides of the fixture base 13 and the replacement head 14, and a connecting component for detachably connecting the two is provided in the receiving portion. The connecting component is embedded in the recessed receiving portions of the fixture base 13 and the replacement head 14, respectively, and the connecting component can be, but is not limited to, set as a "plug and jack component", "screw and screw hole component", etc., so as to realize the convenient detachable connection function of the fixture base 13 and the replacement head 14.

[0070] The specific arrangement of the above-mentioned connecting components has the beneficial effects of simple structure, not occupying extra space, and being able to be easily and quickly assembled and disassembled.

[0071] In one possible implementation, the connection assembly includes a magnetic component and a matching component, and one of the magnetic component and the matching component is disposed in a receiving portion of the fixture seat 13 , and the other is disposed in a receiving portion of the replacement head 14 .

[0072] Specific, combined Figure 2 To further explain in detail, the connecting components are specifically configured as magnetic parts and matching parts. Specifically, the magnetic parts can be arranged in the receiving part of the jig seat 13, and the matching parts can be set as iron parts and arranged in the receiving part of the replacement head 14. In this way, the jig seat 13 and the replacement head 14 can be quickly disassembled and connected by relying on the magnetic attraction force of the magnetic parts and the matching parts. Moreover, since the magnetic parts and the matching parts are respectively embedded in the receiving part, they will not come into direct contact with the welding heads in the circuit board, and will not affect the solder joint coating of the circuit board at all.

[0073] In one embodiment, the fixture body 1 also has a plurality of power connection pins 15; the power connection pins 15 are configured as telescopic pins with elastic contraction function; after the fixture body 1 is docked and fixed with the positioning fixture 2, one end of the telescopic pin is compressed and partially contracted, and abuts against the power connection point in the circuit board.

[0074] Specific, combined Figure 4To further explain in detail, the multiple power connection pins 15 in the jig body 1 are set as telescopic pins with elastic contraction function, so that when the jig body 1 and the positioning fixture 2 are inserted and docked and fixed, one end of the power connection pin 15 can correspond to the power connection point in the circuit board, and one end of the telescopic pin will be partially contracted by the squeezing effect, thereby ensuring that the power connection pin 15 has a movement tendency of always extending, ensuring that the power connection pin 15 can be firmly abutted against the power connection point in the circuit board.

[0075] The specific arrangement of the power connection pin 15 has the beneficial effects of simple structure, automatic contraction under pressure to adjust its own length, and ensuring a firm electrical connection with the power connection point in the circuit board.

[0076] In one embodiment, the positioning member 11 is configured as a positioning telescopic rod; the positioning telescopic rod has a compression spring for applying an extension elastic force, and when the positioning member 11 is inserted and abutted against the bottom wall of the positioning receiving hole 21, the compression spring can be compressed and contracted.

[0077] Specific, combined Figure 2 To further explain in detail, the positioning member 11 is specifically configured as a positioning telescopic rod, and the positioning telescopic rod has a compression spring for applying an extension elastic force, so that the positioning member 11 will have a tendency to always extend under normal conditions, and when the positioning member 11 is inserted and abuts against the bottom wall of the positioning receiving hole 21, the compression spring can be compressed and contracted, thereby adaptively shortening the length of the positioning member 11 and avoiding the problem of the positioning member 11 being too long and damaging the bottom wall of the positioning receiving hole 21 when inserted into the positioning receiving hole 21.

[0078] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0079] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A circuit board burning test fixture, characterized in that: Including the jig body (1) and positioning fixture (2); One end of the jig body (1) serves as a docking end for docking with the positioning fixture (2); The butt joint end has a positioning piece (11) for positioning and plugging, and a clamping portion (12) protruding outward along the periphery of the fixture body (1); The positioning fixture (2) is installed in the circuit board and has a positioning receiving hole (21) and two clamping buckles (22) spaced correspondingly from each other; The fixture body (1) can be docked with the positioning fixture (2) via the docking end, and the positioning member (11) is correspondingly plugged into the receiving hole (21), and the clamping buckle (22) is correspondingly clamped on the clamping portion (12).

2. The circuit board burning test fixture according to claim 1, characterized in that: The clamped portions (12) are respectively arranged in two opposite side peripheral walls of the fixture body (1); The clamping portion (12) is arranged as a clamping edge that protrudes outwardly and faces away from the butt end.

3. The circuit board burning test fixture according to claim 2, characterized in that: Along the butting and inserting direction of the jig body (1), the front edge of the clamped portion (12) is arranged as a chamfered edge; The rear side surface of the clamped portion (12) is arranged perpendicularly to the side peripheral wall of the fixture body (1), or the rear side surface of the clamped portion (12) is arranged inclined at an acute angle to the side peripheral wall of the fixture body (1).

4. The circuit board burning test fixture according to claim 1, characterized in that: The clamping buckle (22) comprises a clamping folding plate; The clamping folding plate comprises a first segment (221), a second segment (222) and a third segment (223) which are connected in sequence; The first section (221) is laid flat on a surface of the circuit board; The second section (222) and one end of the first section (221) extend upwardly at an acute angle; The third section (223) and one end of the second section (222) are inclined upward at an obtuse angle and extend outwardly away from the side wall of the fixture body (1); Wherein, the second section (222) can abut against and squeeze the clamped portion (12); A clamping portion for abutting and clamping the side wall of the jig body (1) is formed at the connecting corner between the second section (222) and the third section (223).

5. The circuit board burning test fixture according to claim 4, characterized in that: The clamping buckle (22) comprises at least two clamping folding plates which are parallel to each other and spaced apart from each other; Furthermore, two of the clamping buckles (22) are symmetrically arranged about the vertical center axis of the positioning fixture (2).

6. The circuit board burning test fixture according to claim 1, characterized in that: The jig body (1) comprises a jig seat (13) and a replacement head (14); The fixture seat (13) is provided with an electrical connector and an electrical pin (15) respectively; The replacement head (14) is detachably mounted on one side of the fixture seat (13) and serves as the docking end of the fixture seat (13); The clamped portion (12) is correspondingly arranged on two opposite side walls of the replacement head (14).

7. The circuit board burning test fixture according to claim 6, characterized in that: Concave receiving portions are respectively provided in the opposite installation sides of the fixture seat (13) and the replacement head (14); The housing portion is correspondingly provided with a connecting assembly for detachably connecting the two.

8. The circuit board burning test fixture according to claim 7, characterized in that: The connection assembly comprises a magnetic attraction component and a matching component, and one of the magnetic attraction component and the matching component is arranged in a receiving portion in the fixture seat (13), and the other is arranged in a receiving portion in the replacement head (14).

9. The circuit board burning test fixture according to any one of claims 1 to 8, characterized in that: The fixture body (1) also has a plurality of power connection pins (15); The power connection pin (15) is configured as a telescopic pin with an elastic contraction function; After the jig body (1) and the positioning fixture (2) are docked and fixed, one end of the telescopic pin is compressed and partially retracted, and abuts against a power connection point in the circuit board.

10. The circuit board burning test fixture according to claim 9, characterized in that: The positioning member (11) is configured as a positioning telescopic rod; The positioning telescopic rod has a compression spring for applying an extension elastic force, and when the positioning member (11) is inserted and abuts against the bottom wall of the positioning receiving hole (21), the compression spring can be compressed and contracted.

Images