CN214503683U - Multifunctional electronic device test fixture - Google Patents

Abstract

The utility model discloses a multifunctional electronic device testing jig, which comprises a shell, wherein the shell comprises a positioning table for supporting an electronic device, the inserting surface of the positioning table is provided with a jack of a pin, a conductive terminal matched with the pin is arranged in the jack, at least one conductive terminal is a movable terminal, and the movable terminal is slidably arranged on the shell along a first direction parallel to the inserting surface; each movable terminal corresponds to at least one positioning plugboard, each positioning plugboard comprises a movable clamping groove which corresponds to the position of the movable terminal and is matched with the movable terminal in a pluggable mode, a slot for inserting the positioning plugboard is formed in the position, corresponding to the movable terminal, of the shell, and the movable terminal can be plugged into the corresponding movable clamping groove through the insertion of the positioning plugboard into the slot so as to position the position of the movable terminal in the first direction. The utility model discloses the electron device according to different specifications chooses the location picture peg of different specifications for use to fix the movable terminal in the position that matches with the electron device pin, applicable in the electron device of different specifications, the commonality is strong and convenient operation.

Description

Multifunctional electronic device test fixture

Technical Field

The utility model relates to an electron device test fixture, especially to the tool that carries out functional test to the pin grafting of electron device.

Background

First, a transformer is a magnetic energy transmission element in a circuit, and in circuit design, only magnetic parameter characteristics such as inductance and coupling coefficient and loss parameters are generally considered. However, in order to better study the operating state of the transformer in dynamic conditions, it is necessary to measure its dynamic characteristics. The coupling capacitance between the primary side and the secondary side of the transformer is only determined by physical structure parameters such as the relative area of windings and the insulation distance between the windings, and is called as the structure capacitance. And the capacitor which takes the potential distribution influence of the winding when the actual transformer works into consideration and can reflect the common-mode conducted noise suppression effect when the actual circuit works is called as a common-mode noise effective capacitor. Due to the complex winding structure of the transformer, the transformer may contain a magnetic core, a framework, a winding, a shielding layer, an insulating adhesive tape, a retaining wall and the like. In evaluating the electromagnetic compatibility characteristics, the conventional method generally measures the size of the structural capacitance, which is greatly different from the electromagnetic compatibility characteristics of the transformer when the actual circuit works.

The traditional method for measuring the structural capacitance parameters between the primary winding and the secondary winding of the transformer by using the LCR can not effectively reflect the potential distribution of the coil winding and the influence of a shielding layer on common-mode noise and conducted radiation. The effectiveness of quality control on the aspect of the transformer cannot be ensured, the monitoring cannot be timely and effectively carried out, the transformer can be tested only after a client plug board is installed on the computer, if the transformer coupling jig encounters quality abnormity, inestimable loss is brought to a company and a client, and therefore the transformer coupling jig is produced.

However, the kinds of transformers are very many, and there are at least hundreds of transformers. In the traditional transformer coupling jig, a single transformer corresponds to a coupling jig, so that the coupling jig is not universal, not only can not be universal, but also wastes too many resources.

Therefore, a testing fixture with strong versatility is urgently needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multi-functional electronic device test fixture carries out the test fixture that the electricity is connected of fixing a position to the electronic device that has the grafting pin, can select the position that conductive terminal is fixed on it to the location picture peg that corresponds according to the specification of electronic device grafting pin, and the commonality is strong.

In order to achieve the above object, the utility model discloses a multifunctional electronic device testing jig, which comprises a shell, a conductive terminal structure, a terminal positioning structure and a detection interface, wherein the shell comprises a positioning table for supporting or fixing an electronic device, and a plurality of jacks for inserting pins of the electronic device are arranged on an inserting surface of the positioning table facing the pins of the electronic device; the conductive terminal structure is provided with a plurality of conductive terminals which are arranged at corresponding positions of the jacks and can be matched with pins inserted into the jacks, wherein at least one conductive terminal is a movable terminal, and the movable terminal is slidably arranged on the shell along a first direction parallel to the plugging surface and can slide for a preset distance along the first direction; the terminal positioning structure comprises positioning plug boards, each movable terminal corresponds to at least one positioning plug board, each positioning plug board comprises a movable clamping groove which corresponds to the position of the movable terminal and can be in plug fit with the movable terminal to fix the position of the movable terminal in a first direction, the shell is different from the plug surface, a slot for the insertion of the positioning plug board is formed in the position corresponding to the movable terminal, and the movable terminal can be plugged into the corresponding movable clamping groove by inserting the positioning plug board into the slot to position the position of the movable terminal in the first direction; the detection interface is used for being electrically connected with the testing equipment and electrically connected with the conductive terminals.

Compared with the prior art, the pin interval based on different specifications in the electron device is different, the utility model discloses according to the different specification pins of electron device, establish partial pin or the conductive terminal that all pins correspond into the movable terminal, establish the direction that the pin interval changes into the first direction, then slide the dress with the movable terminal along the first direction on the casing of tool, the preparation or obtain and correspond the location picture peg that electron device pin specification matches, then fix the movable terminal in the position that matches with the pin on the first direction through the movable clamping groove on this location picture peg, make it be applicable to the electron device of a certain specification. Namely the utility model discloses can adjust the position of movable terminal through the different location picture peg of activity draw-in groove relative position to can make the different electron device pins of conductive terminal adaptation specification, the commonality is strong, and convenient operation.

Preferably, each positioning insertion plate corresponds to one or more movable terminals; when one positioning plug board corresponds to one movable terminal, the positions of the positioning plug boards corresponding to the movable terminals in different specifications in the first direction are different; when one positioning insertion plate corresponds to a plurality of movable terminals, in the positioning insertion plates with different specifications corresponding to the movable terminals, the distances of the corresponding movable clamping grooves in the first direction are different or the positions of the corresponding movable clamping grooves in the first direction are different.

Preferably, at least one of the movable terminals and at least another of the conductive terminals are arranged in a row along the first direction to form a movable terminal row.

Preferably, all the conductive terminals are the movable terminals and are arranged in at least one row to form at least one row of movable terminal rows.

Preferably, all the conductive terminals are arranged in at least one row, wherein the conductive terminals in at least one row are all movable terminals except the conductive terminal at the middle to form a movable terminal row. For example, the movable terminal row has odd number of conductive terminals, the conductive terminal at the middle is a fixed terminal, and the other conductive terminals are movable terminals. Fixed terminals refer to conductive terminals that do not slide relative to the housing in a first direction or conductive terminals that do not need to be adjusted by the positioning insert plate.

Preferably, one the movable terminal row corresponds the location picture peg of two kind at least specifications, set up on the location picture peg and correspond all conductive terminal grafting complex draw-in grooves on the movable terminal row, and be equipped with the different draw-in grooves of interval on the location picture peg of different specifications, with movable terminal grafting complex the draw-in groove is movable draw-in groove. The positioning plug board is convenient to operate, is provided with a plurality of clamping grooves, is accurate in positioning, can fix all conductive terminals on the movable terminal strip, and is high in connection stability. The card slot spaces on the positioning insertion plates with different specifications are different, and at least one of the card slot spaces is different, and every two adjacent card slot spaces are different and part of the card slot spaces are different.

Specifically, if the movable terminal rows are two or more rows, the slots corresponding to the movable terminal rows in different rows are respectively disposed on different side surfaces of the housing.

Preferably, the insertion surface is a horizontal surface, the conductive terminal is longitudinally arranged along a vertical direction and vertically installed in the housing, the insertion hole is located at the top end of the conductive terminal, the insertion slot is arranged on a side surface of the housing along a horizontal direction, and the detection interface is electrically connected with the lower end of the conductive terminal through a circuit board.

Specifically, one the location picture peg corresponds one the slot, just the slot set up in conductive terminal's not co-altitude department, be convenient for adjust, prevent misoperation.

Preferably, one movable terminal corresponds M location picture peg, just M location picture peg with be provided with the linkage subassembly between the casing, so that one in M location picture peg the location picture peg inserts in the time of in the slot, other M-1 location picture pegs pop out the slot improves the simplicity and convenience of operation, and further prevents misoperation.

Preferably, the housing is provided with a plurality of sliding grooves corresponding to the movable terminals one to one, the sliding grooves are longer than the conductive terminals in the first direction, and the conductive terminals are mounted in the sliding grooves and can slide along the first direction.

Preferably, the movable terminal is longitudinally arranged along a direction perpendicular to the plugging surface, and the movable terminal is convexly provided with a protruding portion which extends along at least two directions parallel to the plugging surface and can be clamped at the edge of the sliding groove, and when the conductive terminal is installed in the sliding groove, the protruding portion is clamped with the movable groove.

Preferably, the opening of the movable clamping groove is opened along two sides of the first direction to form a guide channel, so that the movable terminal can extend into the movable clamping groove along the guide channel, and the convenience of adjustment is improved.

Preferably, the conductive terminal is longitudinal and is formed by two conductive sheets oppositely arranged along the first direction, the front ends of the two conductive sheets are oppositely opened along the first direction, the rear ends of the conductive sheets are integrally formed or electrically connected together, and the jack is arranged close to the front end of the conductive terminal, so that pins of an electronic device sequentially extend into the conductive terminal from the jack and the front ends of the conductive sheets. This scheme makes the utility model discloses can be used to the pin test of different length, need not to adjust the distance between conductive terminal and the jack.

Preferably, the electronic device is a transformer, the test fixture is a transformer coupling fixture, the conductive terminals are respectively arranged in two rows according to primary terminals and secondary terminals of the transformer, and each row has at least one movable terminal.

Specifically, the two rows of conductive terminals are arranged on the insertion surface oppositely along a second direction perpendicular to the first direction, and the slots corresponding to the positioning insertion plate are correspondingly arranged on two opposite sides of the second direction of the shell.

Drawings

Fig. 1 is a schematic view of the angle of the multifunctional electronic device testing jig of the present invention.

Fig. 2 is a schematic structural view of another angle of the multifunctional electronic device testing jig of the present invention.

Fig. 3 is an exploded view of the multifunctional electronic device testing jig of the present invention.

Fig. 4 is a schematic view of the connection between the conductive terminal and the chute plate according to the present invention.

Fig. 5 is a cross-sectional view of the multifunctional electronic device testing jig of the present invention, which is transversely cut along a positioning insertion plate.

Fig. 6 is a schematic structural view of the positioning insertion plate of the utility model.

Fig. 7a is an enlarged schematic view of portion a of fig. 6.

Fig. 7B is an enlarged schematic view of portion B of fig. 6.

Fig. 8 is a cross-sectional view of the multifunctional electronic device testing jig of the present invention, which is cut along a positioning board in a longitudinal direction.

Fig. 9 is a cross-sectional view of another embodiment of the multifunctional electronic device testing jig of the present invention, taken along a positioning board.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

Referring to fig. 1 to 3, the utility model discloses a multifunctional electronic device test fixture 100, including casing 10, conductive terminal structure, terminal location structure and detection interface 40, casing 10 is including supporting or fixed electronic device's location platform 11, location platform 11 orientation a plurality of jacks 112 for electronic device pin male have been seted up on the interface 111 of electronic device pin. The conductive terminal structure has a plurality of conductive terminals 20 which are arranged at corresponding positions of the jack 112 and can be matched with pins inserted into the jack 112, the terminal positioning structure is used for adjusting the positions of the conductive terminals 20, and the detection interface 40 is used for electrically connecting test equipment and electrically connecting with the conductive terminals 20.

In this embodiment, the positioning table 11 is a supporting plate, but the positioning table 11 may also have other structures, such as a positioning groove.

Referring to fig. 3, the test fixture 100 further includes a circuit board 41, and the detection interface 40 is electrically connected to the conductive terminals 20 through the circuit board 41.

Referring to fig. 3 to 8, at least one of the conductive terminals 20 is a movable terminal 21, and the movable terminal 21 is slidably mounted on the housing 10 along a first direction parallel to the insertion surface 111 and can slide along the first direction for a predetermined distance; terminal location structure includes location picture peg 30, each movable terminal 21 corresponds at least one location picture peg 30, location picture peg 30 include with movable terminal 21 position corresponds and can peg graft the cooperation with the movable clamping groove 31 of fixed movable terminal 21 position on the first direction, casing 10 be different from spigot surface 111 and with the confession has been seted up on the position that movable terminal 21 corresponds location picture peg 30 male slot 13, location picture peg 30 inserts slot 13 can make movable terminal 21 peg graft in corresponding in the movable clamping groove 31 with the location movable terminal 21 is in the position of first direction.

The slot 13 may be opened on other surfaces of the housing 10 different from the insertion surface 111, such as two side surfaces and a bottom surface.

In the test fixture 100, one movable terminal 21 corresponds to at least one positioning insertion board 30, the positioning insertion board 30 is inserted into the slot 13 along a direction perpendicular to the first direction, and fixes the position of the movable terminal 21 in the first direction, when the test fixture 100 needs to be applied to electronic devices of other specifications, the corresponding positioning insertion board 30 can be manufactured according to the position of a pin on the electronic device, so as to adjust the position of the movable terminal 21 in the first direction, so that the test fixture 100 is applied to the electronic devices of new specifications. Of course, the positioning insertion plate 30 with various specifications can be preset to directly adjust.

One positioning insertion plate 30 may correspond to one movable terminal 21, or may correspond to a plurality of movable terminals 21. The same movable terminal corresponds to the positioning insertion plate 30 with various specifications. When one positioning insertion plate 30 corresponds to one movable terminal 21, corresponding positions of corresponding movable card slots 31 in the first direction are different in the positioning insertion plates 30 of different specifications corresponding to the movable terminal 21. When one positioning insertion plate 30 corresponds to a plurality of movable terminals 21, in the positioning insertion plates 30 of different specifications corresponding to the movable terminals 21, the pitches of the corresponding movable card slots 31 in the first direction are different, and the difference in pitch includes at least one of difference in pitch, difference in each adjacent pitch, and difference in partial pitch.

When the positioning plug board is in work, the unneeded positioning plug board 30 is withdrawn from the slot 13, and the needed positioning plug board 30 is inserted into the slot 13, so that the position adjustment of the movable terminal 21 can be completed, and the positioning plug board is suitable for specific electronic device pins.

The movable terminal 21 is electrically connected to the circuit board 41 through a wire, and of course, the movable terminal 21 may also be electrically connected to the circuit board 41 through a sliding interface or other flexible circuit board.

Referring to fig. 3 and 4, a sliding groove plate 12 is disposed on the inner side of the insertion surface 111 of the housing 10, a plurality of sliding grooves 121 corresponding to the movable terminals 21 one to one are disposed on the sliding groove plate 12, a length of the sliding groove 121 in a first direction is greater than a size of the conductive terminal 20 in the first direction, and the conductive terminal 20 is mounted in the sliding groove 121 and can slide along the first direction. The insertion hole 112 corresponds to the position of the sliding groove 121, the length in the first direction, or the width of the end opening of the movable terminal 21.

Referring to fig. 4 and 8, in this embodiment, the movable terminal 21 is longitudinally disposed along a direction perpendicular to the insertion surface 111, and a protruding portion 201 extending along at least two directions parallel to the insertion surface 111 and capable of being clamped at the edge of the sliding slot 121 is convexly disposed on the movable terminal 21, when the conductive terminal 20 is mounted in the sliding slot 121, the protruding portion 201 is clamped with the movable slot 21, so that the movable terminal 21 is hung on the sliding slot 121 and can slide along the first direction of the sliding slot 121.

Referring to fig. 4 and 8, the conductive terminal 20 is longitudinal and is formed by two conductive sheets 202 oppositely arranged along the first direction, the front ends of the two conductive sheets 202 are oppositely opened along the first direction to form a guiding insertion hole 203, and the rear ends of the conductive sheets 202 are integrally formed, however, the rear ends of the conductive sheets 202 can also be electrically connected together, and the insertion hole 112 is arranged near the front end of the conductive terminal 20, so that the pins of the electronic device sequentially extend into the conductive terminal 20 from the insertion hole 112 and the front end of the conductive sheets. This scheme makes the utility model discloses can be used to the pin test of different length, need not to adjust the distance between conductive terminal 20 and the jack 112.

In this embodiment, the main bodies of the two conductive sheets 202 are straight strips, so that the insertion holes with the same width are formed between the two conductive sheets 202. In other embodiments, the opposite sides of the two conductive strips 202 may be gradually closed or have other shapes to form other shapes of receptacles. In this embodiment, the conductive terminal 20 is integrally formed by pure conductive material, and certainly, the structure of the conductive terminal 20 is not limited thereto, and the conductive terminal 20 may also be composed of an insulating block and one or more conductive sheets embedded in the insulating block.

In this embodiment, the insertion surface 111 is a horizontal surface, the conductive terminal 20 is longitudinally disposed along a vertical direction and vertically installed in the housing 10, the insertion hole 112 is located at a top end of the conductive terminal 20, the insertion slot 13 is opened on a side surface of the housing 10 along the horizontal direction, and the detection interface 40 is electrically connected to a lower end of the conductive terminal 20 through a circuit board. Wherein the first direction is a left-right direction. Of course, the insertion surface 11 is not limited to a horizontal plane, and the first direction is not limited to a left-right direction, and the horizontal plane, a vertical direction, a horizontal direction, a side surface, a top end, and a bottom end may be described in a relative positional relationship.

In this embodiment, one movable terminal corresponds to one electrical device pin. In other embodiments, it is possible for one movable terminal to correspond to multiple pins.

At least one of the movable terminals 21 and at least another of the conductive terminals 20 are arranged in a row along the first direction to form a movable terminal row 200. In this embodiment, the conductive terminals 20 are divided into two rows, and two movable terminal rows 200 are formed. A first row of movable terminal rows 200 is shown in fig. 1, and a second row of movable terminal rows is shown in fig. 2.

Of course, the conductive terminals 20 may be arranged in one row or three rows, and are not limited to two rows, and each row of the movable terminal rows 200 may be a straight row, that is, the same row of the movable terminal rows 200 may have the same position in the second direction parallel to the plane of the mating surface 211 and perpendicular to the first direction (as shown in fig. 7 a), and of course, each row of the movable terminal rows 200 may have a certain offset in the second direction (as shown in fig. 7b, in the second movable terminal row 200, two movable terminals 21 and the other two movable terminals have a small offset in the second direction).

The arrangement of the conductive terminals 20 is limited by the arrangement of the detected electronic device plug pins, and the arrangement of the movable terminals 21 is affected by the position change of the plug pins with large size change in the electronic devices with different specifications or the position of the plug pins with the position in the first direction needs to be adjusted according to design requirements.

Referring to fig. 3, one movable terminal block 200 corresponds to at least two sizes of the positioning insert plates 30. The card slot pitches on the positioning insertion board 30 with different specifications are different, including at least one pitch, each adjacent pitch and a part of the pitches.

In this embodiment, the movable terminal strip 200 in fig. 7a corresponds to three kinds of positioning insertion boards 30, and the pitch of each adjacent card slot in the three kinds of positioning insertion boards 30 is different.

The movable terminal block 200 in fig. 7b corresponds to the positioning insert plate 30 of two specifications. In the two positioning insertion plates 30, the spacing between part of adjacent clamping grooves is different.

Of course, the specification and number of the positioning insertion plates 30 corresponding to the movable terminal strip 200 can be designed according to actual needs, and are not limited to two or three, and may be other values than two.

Referring to fig. 7a and 7b, in this embodiment, the positioning board 30 is provided with slots that are inserted and matched with all the conductive terminals 20 on the corresponding movable terminal row 200, so that the positioning boards 30 with different specifications are provided with slots with different pitches, and the slot inserted and matched with the movable terminal 21 is a movable slot 31.

Referring to fig. 4 and 9, in order to facilitate the movable terminal 21 to extend into the movable card slot 31, an opening of the movable card slot 31 is opened along two sides of the first direction to form a guide channel 311, so that the movable terminal 21 extends into the movable card slot 31 along the guide channel 311.

Referring to fig. 1 and 8, among the five conductive terminals 20 of the first movable terminal row 200, all the conductive terminals 20 are slide terminals 21. The positioning insertion plates 30 with different specifications corresponding to the first movable terminal row 200 are row pitch insertion plates with different groove pitches. Of course, the number of conductive terminals of the first movable terminal row 200 is not limited to an odd number or five.

In this embodiment, the conductive terminal 20 at the middle of the first movable terminal row 200 is a reference terminal, and the positions of the movable card slots 31 corresponding to the conductive terminal 20 at the middle of the three positioning insertion plates 30 in the first direction are the same (the reference terminal may be a fixed terminal). Of course, the other conductive terminals 20 may be set as the reference terminal, the position of the reference terminal is not changed, and the relative positions of the other conductive terminals are adjusted, and the reference terminal may be the most adjacent conductive terminal, the second conductive terminal, or the like. Wherein the conductive terminal 20 of the reference terminal can be directly provided as a fixed terminal, see fig. 9.

Referring to fig. 2, the second movable terminal row 200 on the rear side is an even number of conductive terminals, and all the conductive terminals 20 are sliding terminals 21. The positioning insertion plates 30 with different specifications corresponding to the second movable terminal row 200 are row pitch insertion plates with different groove pitches. Of course, the number of conductive terminals of the second movable terminal row 200 is not limited to an even number or four. In this embodiment, the two conductive terminals 20 at the middle of the second movable terminal row 200 are reference terminals, and in the two corresponding positioning insertion plates 30, the positions of the movable slots 31 corresponding to the two conductive terminals 20 at the middle are the same in the first direction. Of course, the other conductive terminals 20 may be set as the reference terminal, the position of the reference terminal is not changed, and the relative positions of the other conductive terminals are adjusted, and the reference terminal may be the most adjacent conductive terminal, the second conductive terminal, or the like. Here, the conductive terminal 20 of the reference terminal may be directly provided as a fixed terminal.

Referring to fig. 1, the three positioning insertion boards 30 corresponding to the first movable terminal strip 200 on the front side surface are respectively a first slot pitch insertion board with a slot pitch of 3.0mm for the adjacent movable slot 31, a second slot pitch insertion board with a slot pitch of 2.8mm for the adjacent movable slot 31, and a third slot pitch insertion board with a slot pitch of 2.5mm for the adjacent movable slot. Referring to fig. 2, the two positioning insertion boards 30 corresponding to the second movable terminal strip 200 on the rear side are respectively a fourth slot pitch insertion board with a slot pitch of 3.5mm for the adjacent movable slot 31 and a fifth slot pitch insertion board with a slot pitch of 3.0mm for the adjacent movable slot.

Different from the embodiment, referring to fig. 9, in the first movable terminal row 200 having odd conductive terminals 21, the middle conductive terminal 20 is the fixed terminal 22, and the other conductive terminals 20 are the movable terminals 21. The chute plate 12 is provided with a mounting groove 122 for mounting the fixed terminal 22 at a position corresponding to the fixed terminal 22, the mounting groove 122 matches the size of the fixed terminal 22, and the fixed terminal 22 cannot slide in the mounting groove 122 in the first direction. The card slot corresponding to the fixed terminal 22 is a fixed card slot 32, and the card slot corresponding to the movable terminal 21 is a movable card slot 31. The positioning insertion plates 30 with different specifications corresponding to the first movable terminal row 200 are row pitch insertion plates with different groove pitches. Of course, the number of conductive terminals of the first movable terminal row 200 is not limited to an odd number or five. In the positioning insertion plates 30 of a plurality of specifications that match the movable terminals 21, the fixed card slots 32 are located at the same position in the first direction.

The fixed terminal 22 and the circuit board 41 may be connected in the same manner as the movable terminal 21, and may be directly soldered to the circuit board 41 by a soldering method.

Wherein the direction in which the positioning insert plate 30 is inserted is perpendicular to the direction in which the movable terminal in the corresponding movable terminal block 200 slides, i.e., the positioning insert plate 30 is inserted into the movable terminal block 200 in the second direction along the side opposite to the second direction.

Referring to fig. 3 and 5, the slots 13 corresponding to the movable terminal rows 200 in different rows are respectively disposed on different sides of the housing 10, the slots 13 corresponding to the two movable terminal rows 200 are respectively disposed on two opposite sides of the housing corresponding to the second direction, and the two movable terminal rows 200 are respectively inserted into the slots 13 on the two opposite sides. In this embodiment, the slots 13 corresponding to the two rows of movable terminal rows 200 are disposed on two opposite side surfaces of the housing 10. Of course, the slot 13 may also be disposed on the bottom surface, and the positioning insertion plate 30 is correspondingly inserted into the slot 13 from the bottom surface, and at this time, an anti-slip clamping structure is disposed between the positioning insertion plate 30 and the slot 13 or the housing 10.

Specifically, one the positioning insertion plate 30 corresponds to one the slot 13, and the slots 13 corresponding to different positioning insertion plates 30 are opened at different heights of the conductive terminals 20, so that the adjustment is facilitated, and misoperation is prevented.

In this embodiment, all the movable terminals 21 are arranged along the first direction, and based on this embodiment, in another embodiment, if some pins are changed and adjusted in other directions, or some terminal rows arranged along other directions need to be adjusted, for example, the electronic device further includes a row of movable terminal rows arranged along a second direction parallel to the plugging surface 111 and perpendicular to the first direction, if the terminal pitch in the movable terminal rows is to be adjusted, the movable terminals slide on the housing 10 along the second direction, the corresponding positioning insertion plates have movable insertion slots corresponding to the positions of the movable terminals and capable of being plugged and matched to fix the positions of the movable terminals in the second direction, and the corresponding insertion slots of the positioning insertion plates are inserted along the first direction from the side surface of the housing 10 opposite to the first direction.

Preferably, one of the movable terminals 21 corresponds to M positioning insertion plates 30, and a linkage assembly is disposed between the M positioning insertion plates 30 and the housing 10, so that when one of the M positioning insertion plates 30 is inserted into the slot 13, the other M-1 positioning insertion plates 30 are ejected out of the slot 13, thereby improving the convenience of operation, and when the positioning insertion plate 30 is replaced, the original positioning insertion plate 30 does not need to be pulled out. M is an integer of 2 or more.

For example, referring to fig. 1, when the uppermost positioning insert plate of the three positioning insert plates 30 corresponding to the first movable terminal row 200 is inserted into the slot 13 (at the insertion position of the slot 13) to cooperate with the adjustment of the position of the movable terminal 21 in the first movable terminal row 200, the other two positioning insert plates 30 are withdrawn from the slot 13 (at the withdrawal position of the slot 13) to be separated from the first movable terminal row 200. If either of the other two positioning insert plates 30 is inserted into the slot 13, the uppermost positioning insert plate 30 will exit the slot 13 in cooperation with the linkage assembly.

In this embodiment, the electronic device is a transformer, the test fixture 100 is a transformer coupling fixture, and the conductive terminals 20 are respectively arranged in two rows according to the primary terminal and the secondary terminal of the transformer. Of course, the electronic device may be other devices, and the test fixture may be other fixtures, and is not limited to the transformer coupling fixture. In this embodiment, the first movable terminal strip 200 is a transformer primary terminal strip (corresponding to a primary terminal), the corresponding positioning board 30 is a primary side positioning board, the second movable terminal strip 200 is a transformer secondary terminal strip (corresponding to a secondary terminal), and the corresponding positioning board 30 is a secondary side positioning board. The primary terminal row and the secondary terminal row of the transformer are arranged on the inserting face 111 oppositely along a second direction perpendicular to the first direction, the slots 13 corresponding to the primary side positioning inserting plate and the secondary side positioning inserting plate are arranged on two opposite sides of the second direction of the shell 11, and the slots 13 on the two opposite sides of the primary side positioning inserting plate and the secondary side positioning inserting plate are respectively inserted into the primary terminal row and the secondary terminal row of the transformer along the second direction.

If the specification of the electronic device changes and the positioning insertion board 30 in the existing slot 13 cannot meet the requirement, a new positioning insertion board can be manufactured according to the requirement, and then the positioning insertion board 30 which is not used frequently is pulled out, and the new positioning insertion board 30 is inserted into the corresponding slot 13.

During operation, the positioning plug board 30 matched with the transformer to be tested is selected, the required positioning plug board 30 is inserted into the slot 13 (the corresponding primary positioning plug board is inserted into the corresponding slot 13, and the corresponding secondary positioning plug board is inserted into the corresponding slot 13), and the inserted positioning plug board 30 adjusts the position of the corresponding movable terminal 21 in the first direction so as to match with the pin of the transformer, thereby completing the debugging of the test fixture 100.

The output interface of the signal transmitter and the input interface of the signal receiver are respectively connected to the detection interface 40 of the debugged test fixture 100, then the transformer to be detected is inserted into the insertion hole 111 of the positioning table 11, the pins of the transformer respectively penetrate through the insertion hole 111 and the guide insertion holes 203 to enter the conductive terminals 20 and are electrically connected with the conductive terminals 20, and the conductive terminals 20 and the circuit board 41 are connected to the corresponding detection interface 40, so that the output interface of the signal transmitter is connected to the power supply end of the primary winding of the transformer, the input interface of the signal receiver is connected to the power supply end of the output winding of the transformer, the signal transmitter and the signal receiver are turned on, and the coupling detection of the transformer is carried out.

If the type of the transformer is changed, the signal transmitter and the signal receiver are turned off, the primary positioning plugboard and the secondary positioning plugboard which are matched with the changed type of the transformer are directly inserted into the corresponding slots 13 respectively, and the original primary positioning plugboard and the original secondary positioning plugboard are popped out, so that the debugging of the test fixture 100 can be completed, and the test fixture is fast and convenient.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims (10)

1. The utility model provides a multi-functional electronic device test fixture which characterized in that: the method comprises the following steps:

the shell comprises a positioning table for supporting or fixing an electronic device, wherein a plurality of jacks for inserting pins of the electronic device are formed in the insertion surface of the positioning table facing the pins of the electronic device;

the conductive terminal structure is provided with a plurality of conductive terminals which are arranged at corresponding positions of the jacks and can be matched with the pins inserted into the jacks, wherein at least one conductive terminal is a movable terminal, and the movable terminal is slidably arranged on the shell along a first direction parallel to the plugging surface and can slide for a preset distance along the first direction;

the terminal positioning structure comprises positioning plugboards, each movable terminal corresponds to at least one positioning plugboard, each positioning plugboard comprises a movable clamping groove which corresponds to the position of the movable terminal and can be matched with the movable terminal in a plugging manner so as to fix the position of the movable terminal in a first direction, the shell is different from the plugging surface, a slot for the insertion of the positioning plugboard is formed in the position corresponding to the movable terminal, and the movable terminal can be plugged into the corresponding movable clamping groove by inserting the positioning plugboard into the slot so as to position the position of the movable terminal in the first direction;

and the detection interface is used for electrically connecting the test equipment and is electrically connected with the conductive terminals.

2. The multi-functional electronic device test fixture of claim 1, wherein: each positioning insertion plate corresponds to one or more movable terminals; when one positioning plug board corresponds to one movable terminal, the positions of the positioning plug boards corresponding to the movable terminals in different specifications in the first direction are different; when one positioning insertion plate corresponds to a plurality of movable terminals, in the positioning insertion plates with different specifications corresponding to the movable terminals, the distances of the corresponding movable clamping grooves in the first direction are different or the positions of the corresponding movable clamping grooves in the first direction are different.

3. The multi-functional electronic device test fixture of claim 1, wherein: at least one movable terminal and at least another conductive terminal are arranged in a row along the first direction to form a movable terminal row; or all the conductive terminals are the movable terminals and are arranged in at least one row to form at least one row of movable terminal rows; all the conductive terminals are arranged in at least one row, wherein the conductive terminals in at least one row are movable terminals except the conductive terminal in the middle to form a movable terminal row.

4. The multi-functional electronic device test fixture of claim 3, wherein: one the movable terminal row corresponds the location picture peg of two kind at least specifications, set up on the location picture peg with corresponding all conductive terminal grafting complex draw-in grooves are gone up to the movable terminal row, and are equipped with the different draw-in grooves of interval on the location picture peg of different specifications, with the movable terminal grafting complex the draw-in groove is movable draw-in groove.

5. The multi-functional electronic device test fixture of claim 1, wherein: the plug-in surface is a horizontal plane, the conductive terminals are longitudinally arranged along the vertical direction and vertically installed in the shell, the jacks are located at the top ends of the conductive terminals, the slots are arranged on the side face of the shell along the horizontal direction, and the detection interface is electrically connected with the lower ends of the conductive terminals through a circuit board.

6. The multi-functional electronic device test fixture of claim 5, wherein: the positioning plug board corresponds to one slot, and the slots of the positioning plug board corresponding to the same movable terminal are arranged at different heights of the conductive terminals.

7. The multi-functional electronic device test fixture of claim 1, wherein: the shell is arranged on an inner side sliding groove plate of the inserting surface, a plurality of sliding grooves which are in one-to-one correspondence with the movable terminals are formed in the sliding groove plate, the length of each sliding groove in the first direction is larger than the size of each conductive terminal in the first direction, the movable terminals are longitudinally arranged along the direction perpendicular to the inserting surface, protruding portions which extend in at least two directions parallel to the inserting surface and can be clamped on the edges of the sliding grooves are convexly arranged on the movable terminals, the conductive terminals are arranged in the sliding grooves, the protruding portions are clamped with the movable grooves, and the conductive terminals slide in the sliding grooves along the first direction.

8. The multi-functional electronic device test fixture of claim 1, wherein: the opening of the movable clamping groove is opened along two sides of the first direction to form a guide channel, so that the movable terminal can extend into the movable clamping groove along the guide channel.

9. The multi-functional electronic device test fixture of claim 1, wherein: the conductive terminal is longitudinal and is formed by two conductive sheets which are oppositely arranged along the first direction, the front ends of the two conductive sheets are oppositely opened along the first direction, the rear ends of the conductive sheets are integrally formed or are electrically connected together, and the jack is close to the front end of the conductive terminal so that pins of an electronic device sequentially extend into the conductive terminal from the jack and the front end of the conductive sheet.

10. The multi-functional electronic device test fixture of claim 1 or 3, wherein: the electronic device is a transformer, the testing jig is a transformer coupling jig, the conductive terminals are respectively arranged in two rows according to primary terminals and secondary terminals of the transformer, and each row is provided with at least one movable terminal.

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