Multi-connector test fixture

Abstract

The utility model discloses a multi-connector test fixture, which comprises a base, a limit frame, a vacuum joint, an elastic piece and a plurality of floating butt joint seats, the limit frame is mounted on the base and forms a mounting cavity with the base in an enclosing manner, and the floating butt joint seats are movably arranged at the mounting cavity. The floating butt-joint seat comprises an exposed part exposed out of the mounting cavity and a limiting part limited in the mounting cavity, the exposed part is connected with the limiting part, a butt-joint groove is formed in the end, away from the limiting part, of the exposed part, a vacuum cavity is defined by the limiting part, the base and the limiting frame, the vacuum connector is communicated with the vacuum cavity, and a vacuum suction hole communicated with the vacuum cavity is formed in the bottom face of the butt-joint groove. A test needle is arranged on the base, a through hole for the test needle to penetrate through is formed in the bottom face of the butt joint groove, the diameter of the through hole is larger than that of the test needle, and the elastic piece is connected with the base and the floating butt joint base to drive the limiting part to abut against the limiting frame. According to the multi-connector test fixture, the butt joint seat used for butt joint of the connectors of the electronic product can float relative to the base, so that the accuracy of a test result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing tooling, in particular to a multi-connector testing fixture. Background Art

[0002] Some electronic products sometimes have multiple connectors on the same end. However, when SMT connectors are installed on electronic products, there are different degrees of deviation between the connectors. Currently, the needle molds of test fixtures are all one-piece designs, and the sizes of the docking sockets of the docking connectors are fixed. Therefore, when testing such electronic products with multiple connectors, it is very easy to produce inaccurate needle insertion, resulting in test misjudgment. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a multi-connector test fixture with high test accuracy.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a multi-connector test fixture, including a base, a limit frame, a vacuum joint, an elastic member and a plurality of floating docking seats, the limit frame is installed on the base and encloses the base to form an installation cavity, the floating docking seat can be movably arranged at the installation cavity, the floating docking seat includes an exposed portion exposed to the installation cavity and a limit portion limited in the installation cavity, the exposed portion is connected to the limit portion, and a docking groove is provided at one end of the exposed portion away from the limit portion, the limit portion, the base and the limit frame enclose a vacuum cavity, the vacuum joint is connected to the vacuum cavity, the bottom surface of the docking groove is provided with a vacuum suction hole connected to the vacuum cavity, a test needle is provided on the base, and the bottom surface of the docking groove is provided with a through hole for the test needle to pass through and the caliber is larger than the diameter of the test needle, and the elastic member connects the base and the floating docking seat to drive the limit portion to contact the limit frame.

[0005] In one embodiment, the limiting frame has a window for exposing the exposed portion, and a first gap is provided between the wall surface of the window and the wall surface of the exposed portion; a second gap is provided between the wall surface of the limiting portion and the wall surface of the mounting cavity; and the bottom surface of the limiting portion is not in contact with the base.

[0006] In one embodiment, a guide surface is provided on the wall surface of the docking groove.

[0007] In one embodiment, the guide surface is a curved surface or an inclined surface.

[0008] In one embodiment, it also includes a guide pin, a first accommodating hole for accommodating one end of the guide pin is provided on the floating docking seat, and a second accommodating hole for accommodating the other end of the guide pin is provided on the base, the axial direction of the guide pin is consistent with the expansion and contraction direction of the elastic member, and the aperture of the first accommodating hole is larger than the diameter of the guide pin.

[0009] In one embodiment, the limiting portion has a skirt protruding outward, and the skirt has a contact surface for contacting the limiting frame.

[0010] In one embodiment, it also includes a support base, on which a test PCB board is provided, on which a conduction pin that is conductive with the test PCB board is provided, the conduction pin is electrically connected to the test pin, and the support base is connected to the base via a support column.

[0011] The beneficial effect of the utility model is that in the multi-connector test fixture, the docking seat of the connector for docking the electronic product can float relative to the base, so that the connector on the electronic product can be better docked. Even if the connector on the electronic product is shifted during patching, the floating docking seat can still dock, thereby effectively improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0013] Figure 1 This is a schematic diagram of the structure of a multi-connector test fixture according to Embodiment 1 of the present utility model;

[0014] Figure 2 A cross-sectional view of a multi-connector test fixture according to Embodiment 1 of the present invention Figure 1 ;

[0015] Figure 3 A cross-sectional view of a multi-connector test fixture according to Embodiment 1 of the present invention Figure 2 ;

[0016] Figure 4 A cross-sectional view of a multi-connector test fixture according to Embodiment 1 of the present invention Figure 3 .

[0017] Description of Figure Numbers:

[0018] 1. Base;

[0019] 2. Limit frame;

[0020] 3. Vacuum connector;

[0021] 4. Elastic parts;

[0022] 5. floating docking seat; 51. exposed part; 511. docking groove; 512. guide surface; 52. limit part; 521. skirt; 522. contact surface; 53. vacuum suction hole; 54. perforation;

[0023] 6. Vacuum chamber;

[0024] 71. Test needle; 72. Cable; 73. Test PCB board;

[0025] 81, first gap; 82, second gap;

[0026] 9. Guide pin;

[0027] 10. Support seat; 101. Support column. DETAILED DESCRIPTION

[0028] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0032] In addition, if the meaning of "and / or" appears in the full text is to include three parallel solutions, taking "and / or" as an example, it includes solutions, or solutions, or solutions that are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0033] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] Embodiment 1

[0035] Please refer to Figures 1 to 4 , Embodiment 1 of the present utility model is: a multi-connector test fixture, comprising a base 1, a limiting frame 2, a vacuum joint 3, an elastic member 4 and a plurality of floating docking seats 5, wherein the limiting frame 2 is mounted on the base 1 and encloses the base 1 to form a mounting cavity, the floating docking seat 5 can be movably arranged at the mounting cavity, the floating docking seat 5 comprises an exposed portion 51 exposed to the mounting cavity and a limiting portion 52 limited in the mounting cavity, the exposed portion 51 is connected to the limiting portion 52, and a docking groove 511 is provided at one end of the exposed portion 51 away from the limiting portion 52, the limiting portion 52, the bottom The seat 1 and the limit frame 2 enclose a vacuum chamber 6, the vacuum joint 3 is connected to the vacuum chamber 6, the bottom surface of the docking groove 511 is provided with a vacuum suction hole 53 connected to the vacuum chamber 6, a test needle 71 is provided on the base 1, and the bottom surface of the docking groove 511 is provided with a through hole 54 for the test needle 71 to pass through and the diameter is larger than the diameter of the test needle 71. The elastic member 4 connects the base 1 and the floating docking seat 5 to drive the limit portion 52 to contact the limit frame 2. In this embodiment, the elastic member 4 is a compression spring. In other embodiments, the elastic member 4 can be a spring, a rubber pad, etc.

[0036] During the test, the vacuum suction hole 53 can suck the connector of the electronic product, thereby preventing the connector of the electronic product from being accidentally separated from the floating docking seat 5 .

[0037] In detail, the limit frame 2 has a window for exposing the exposed portion 51, and a first gap 81 is formed between the wall surface of the window and the wall surface of the exposed portion 51; a second gap 82 is formed between the wall surface of the limit portion 52 and the wall surface of the mounting cavity; and the bottom surface of the limit portion 52 is not in contact with the base 1. That is, in the multi-connector test fixture of this embodiment, the floating docking seat 5 can move relative to the base 1 not only along the X-axis direction, but also along the Y-axis direction, and can also move relative to the Z-axis direction.

[0038] In order to facilitate the docking of the connector of the electronic product with the floating docking seat 5 , the wall surface of the docking groove 511 is provided with a guide surface 512 , and the guide surface 512 is a curved surface or an inclined surface.

[0039] The multi-connector test fixture also includes a guide pin 9. The floating docking seat 5 is provided with a first accommodating hole for accommodating one end of the guide pin 9. The base 1 is provided with a second accommodating hole for accommodating the other end of the guide pin 9. The axial direction of the guide pin 9 is consistent with the telescopic direction of the elastic member 4. The aperture of the first accommodating hole is larger than the diameter of the guide pin 9. The setting of the guide pin 9 can effectively prevent the floating docking seat 5 from rotating relative to the base 1, which is beneficial to ensure the smoothness of the docking between the connector of the electronic product and the floating docking seat 5.

[0040] Specifically, the limiting portion 52 has a skirt 521 protruding outward, and the skirt 521 has a contact surface 522 for contacting the limiting frame 2. Preferably, the skirt 521 is in a ring frame shape as a whole, that is, the skirt 521 and the limiting frame 2 can form a complete ring frame-shaped contact surface, thereby effectively ensuring the vacuum degree of the vacuum chamber 6.

[0041] Optionally, the multi-connector test fixture further includes a support seat 10, on which a test PCB board 73 is provided, on which a conduction pin that is in electrical communication with the test PCB board 73 is provided, and the conduction pin is electrically connected to the test pin 71, and the support seat 10 is connected to the base 1 via a support column 101. In this embodiment, the conduction pin is electrically connected to the test pin 71 via a cable 72.

[0042] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A multi-connector test fixture, characterized in that: It includes a base, a limit frame, a vacuum joint, an elastic member and a plurality of floating docking seats, the limit frame is installed on the base and is combined with the base to form an installation cavity, the floating docking seat can be movably arranged at the installation cavity, the floating docking seat includes an exposed portion exposed to the installation cavity and a limit portion limited in the installation cavity, the exposed portion is connected to the limit portion, and an end of the exposed portion away from the limit portion is provided with a docking groove, the limit portion, the base and the limit frame are combined to form a vacuum cavity, the vacuum joint is connected to the vacuum cavity, the bottom surface of the docking groove is provided with a vacuum suction hole connected to the vacuum cavity, a test needle is provided on the base, and the bottom surface of the docking groove is provided with a through hole for the test needle to pass through and the caliber is larger than the diameter of the test needle, and the elastic member connects the base and the floating docking seat to drive the limit portion to contact the limit frame.

2. The multi-connector test fixture according to claim 1, characterized in that: The limiting frame has a window for exposing the exposed part, and a first gap is formed between the wall surface of the window and the wall surface of the exposed part; a second gap is formed between the wall surface of the limiting part and the wall surface of the installation cavity; and the bottom surface of the limiting part is not in contact with the base.

3. The multi-connector test fixture according to claim 1, characterized in that: The wall surface of the docking groove is provided with a guiding surface.

4. The multi-connector test fixture according to claim 3, characterized in that: The guiding surface is a curved surface or an inclined surface.

5. The multi-connector test fixture according to claim 1, characterized in that: It also includes a guide pin, the floating docking seat is provided with a first accommodating hole for accommodating one end of the guide pin, the base is provided with a second accommodating hole for accommodating the other end of the guide pin, the axial direction of the guide pin is consistent with the expansion and contraction direction of the elastic member, and the aperture of the first accommodating hole is larger than the diameter of the guide pin.

6. The multi-connector test fixture according to claim 1, characterized in that: The limiting portion has a skirt protruding outward, and the skirt has a contact surface for contacting the limiting frame.

7. The multi-connector test fixture according to claim 1, characterized in that: It also includes a support base, on which a test PCB board is arranged, on which a conduction pin which is in conduction with the test PCB board is arranged, the conduction pin is electrically connected with the test pin, and the support base is connected to the base via a support column.

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