TW202304075A - Electrical test apparatus including at least one unit body, an alignment unit connected to the unit body and an outer frame unit for mounting the unit body and the alignment unit - Google Patents

Abstract

An electrical test apparatus includes at least one unit body, an alignment unit connected to the unit body and an outer frame unit for mounting the unit body and the alignment unit. The unit body includes a plurality of substrates overlapping each other and a plurality of contact arms extending outwards from a position between the two adjacent substrates overlapping each other. Each of the substrates has two end surfaces at two opposite ends and two surfaces at two opposite sides. Surfaces on which the substrates on the two opposite sides of the unit body are exposed are respectively defined as two surfaces-to-be-connected. The alignment unit includes at least one auxiliary part connected to at least one of the surfaces-to-be-connected so as to form an alignment structure on at least one of the surfaces-to-be-connected. The outer frame unit includes a body and at least one allocating structure formed on the body and corresponding, in shape, to the alignment structure.

Description

Electrical Test Device

The invention relates to an electrical testing device, in particular to an electrical testing device for testing electronic components.

Nowadays, the circuit configuration of electronic components is becoming more and more sophisticated, and the volume or size is becoming smaller and smaller. When assembling the electrical test device with the component under test, it is necessary to form an electrical connection between multiple modular parts during the assembly process. It is necessary to consider the positioning of each modular part and the alignment of the electrical contacts more precisely to ensure the assembly yield and to perform normal electrical testing functions.

Referring to Fig. 1, it is an existing electrical testing device 1, comprising at least one prefabricated and modularized unit body 10, and a frame body defining an installation space 120 for setting the at least one unit body 10 12. The at least one unit body 10 is extended along an auxiliary line L, and has a plurality of substrates 101 extending a predetermined length along an extending direction E and stacked perpendicular to the extending direction E, and a plurality of adjacent substrates 101 Contact arms 102 extending outwards between them. Each substrate 101 has two end portions 109 respectively located at opposite ends of the extending direction E, and a base portion 108 integrally connected between the end portions 109, and the contact arms 102 are arranged on every two adjacent substrates 101 between the bases 108 . The contact arms 102 can form electrical contacts, which are correspondingly connected to electrical connection points of electronic components to be tested or driving devices, so as to achieve the purpose of electrical testing.

In the process of assembling the electrical testing device 1, in order to allow the at least one unit body 10 stacked with the substrates 101 to be installed in the installation space 120, the frame body 12 has two opposite sides and The distance from each other is equal to the predetermined length, and is used to correspond to the side strips 121 of the ends 109 of the substrates 101. Each side strip 121 has a plurality of spaced apart and concave shapes, and the shapes correspond to the substrates respectively. 101 on the same side as the end 109 of the engaging groove 129 . By disposing the ends 109 of the substrates 101 in the slots 129 , an alignment and positioning mechanism during assembly is formed to ensure that the at least one unit 10 can be stably installed in the frame 12 .

However, since the at least one unit body 10 includes a plurality of the substrates 101 superimposed on each other, each substrate 101 must be accurately manufactured to the predetermined length, and the shapes of the ends 109 must also be precise to match. The length between the two side strips 121, and correspondingly arranged in the slots 129, even when the substrates 101 are attached, must be almost perfectly aligned, so as to ensure that the at least one unit body 10 can pass through the The positioning mechanism of the card slot 129 is installed on the frame body 12 . Therefore, although the alignment and positioning mechanism on the frame body 12 can ensure the stable installation of the at least one unit body 10 from multiple directions, under the situation that some tolerances inevitably occur in the manufacture of each part, as long as there is any substrate 101 If the length is misaligned, or the shape of any one end 109 deviates, or even the alignment is not accurate enough when the substrates 101 are laminated, the prefabricated at least one unit body 10 may not be installed in the installation space 120, This will invisibly reduce the yield rate of assembly and increase the unnecessary burden on the manufacturer.

Therefore, the object of the present invention is to provide an electrical testing device that can provide an alignment mechanism that helps to improve assembly yield.

Therefore, the electrical testing device of the present invention includes at least one unit body, an alignment unit connected to the at least one unit body, and an outer frame unit for installing the at least one unit body and the alignment unit.

The at least one unit body includes a plurality of substrates extending along a first direction and stacked along a second direction perpendicular to the first direction, and between a plurality of self-stacked adjacent two substrates, with a direction perpendicular to the first direction The contact arms extending outward in the third direction of the first direction and the second direction, each substrate has two end faces located at opposite ends in the first direction, and two end faces located at opposite ends in the second direction The surface of the end defines the exposed surfaces of the substrates on opposite sides of the at least one unit body in the second direction as two surfaces to be connected.

The alignment unit includes at least one auxiliary member connected to at least one of the waiting surfaces to form an alignment structure on at least one of the waiting surfaces.

The outer frame unit includes a main body defining an installation space, and at least one coordination structure formed on the main body and whose shape matches the alignment structure.

The effect of the present invention is: because the at least one auxiliary member of the alignment unit is connected to the surface of the substrate of the at least one unit body, under the condition that the surface must be relatively flat, the at least one auxiliary member is used to form The alignment structure does not need to consider whether the substrates of the at least one unit are aligned and bonded, and does not require precise requirements for the length specification of each substrate and the length consistency of the substrates, and can still be achieved by the above-mentioned The correspondence between the alignment structure and the coordination structure of the frame unit ensures the accuracy of the alignment, thereby improving the assembly yield.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numerals.

Referring to Fig. 2, it is a first embodiment of the electrical testing device of the present invention, this first embodiment comprises a unit body 2, an alignment unit 3 connected to the unit body 2, and a unit body 2 and a The alignment unit 3 is installed with an outer frame unit 4 .

The unit body 2 includes a plurality of substrates 21 extending along a first direction D1 and stacked along a second direction D2 perpendicular to the first direction D1, and between a plurality of self-stacked adjacent two substrates 21, The contact arm 22 extends outward in a third direction D3 perpendicular to the first direction D1 and the second direction D2 and is used for direct contact with an electrical contact. Each substrate 21 has two end surfaces 211 located at opposite ends in the first direction D1 , and two surfaces 212 located at opposite ends in the second direction D2 . Wherein, the surfaces 212 of the substrate 21 are flat surfaces formed when the raw materials leave the factory. Compared with the end surfaces 211 formed by cutting the raw materials of the substrate 21 into specific lengths, the appearance of flatness is bound to be more Stable and relatively manageable.

Define the exposed surfaces 212 of the substrate 21 on the opposite sides of the unit body 2 in the second direction D2 as two waiting surfaces 200 , and the alignment unit 3 includes a plurality of auxiliary parts connected to the waiting surfaces 200 31 to form two alignment structures 300 on the waiting junction 200 respectively. Specifically, in this first embodiment, two auxiliary parts 31 that are spaced apart from each other and have different lengths along the first direction D1 are connected to each to-be-joined surface 200 , so that the individual to-be-joined surfaces 200 can be connected by The space defined by the auxiliary parts 31 being spaced apart from each other forms a groove-shaped alignment structure 300 . Wherein, the two groove-shaped alignment structures 300 are preferably misaligned and asymmetrical along the second direction D2, so as to achieve a fool-proof effect for identifying the installation direction.

Referring to Fig. 2 and Fig. 3 at the same time, the outer frame unit 4 includes a main body 41 defining an installation space 410, and two coordinating parts formed on the main body 41 whose shapes match the alignment structures 300 respectively. structure42. Each body 41 has an inner annular surface 411 surrounding the installation space 410, an overlapping surface 412 extending inwardly from the inner annular surface 411 and used for overlapping the base plates 21 of the unit body 2, and an overlapping surface 412 extending from the inner annular surface 411. A flange surface 413 bent by the overlapping surface 412 , and an outer surface 414 connected to the flange surface 413 and extending away from the installation space 410 . Wherein, the distance between the overlapping surface 412 and the outer surface 414 is smaller than the length of the contact arms 22 away from the substrates 21 . In this first embodiment, in order to make the coordination structures 42 match the groove-shaped alignment structures 300, each coordination structure 42 is in conformity with the shape of the groove. bumpy.

Referring to Fig. 4 and in conjunction with Fig. 2, it should be explained that in actual implementation, in order to ensure complete assembly, another frame 41' with the same characteristics as the main body 41 will be provided. The frame body 41 ′ is relatively assembled on opposite sides of the unit body 2 . The design of the alignment structures 300 formed by the alignment unit 3 and the coordination structures 42 of the outer frame unit 4 coincide with each other, in addition to being able to align the unit body 2 and install it on the outer frame unit 4 The relative positions of these auxiliary parts 31 are installed on the relatively flat surfaces 212 (to-be-connected surfaces 200 ) when the raw materials leave the factory. The perfect alignment of the end faces 211 needs to be considered, and it also has better tolerance for tolerances that inevitably occur during processing.

Referring to FIG. 5 and in conjunction with FIG. 2, when using the first embodiment to detect an electronic component 9, the electronic component 9 extends from one side of the first embodiment to the outer frames along the third direction D3. The contact arms 22 other than unit 4. The distribution positions of the contact arms 22 of the unit body 2 correspond to the electrical contacts of the electronic components 9 to be tested. The side of the unit body 2 that is opposite to the contact with the electronic component 9 can be connected to a driving device (not shown) that performs an electrical test, so as to target the electronic component that is electrically connected to the unit body 2 9. Executing an electrical test, whether the electronic component 9 is good or not can be judged by whether the conduction of the electrical signal is normal or not.

It is worth noting that, usually in order to ensure that the electronic component 9 is in stable contact with the unit body 2, another pressurizing device (in the figure) that applies pressure to the electronic component 9 in the first embodiment will be used when performing the test. not shown). In order to avoid damage to the contact arms 22 caused by the excessive external force applied by the pressurizing device, the distance between the length of the contact arms 22 away from the substrates 21 and the distance between the overlapping surface 412 and the outer surface 414 , that is to form a safe actuation distance, as long as the electronic component 9 presses the contact arms 22 to cause the contact arms 22 to produce the deformation of the actuation distance, the electronic component 9 will contact the outer surface 414 and cannot continue Moving toward the unit body 2 prevents the contact arms 22 from being damaged due to excessive deformation, thereby forming a safety protection mechanism during detection.

Referring to FIG. 6 , it is another implementation of the first embodiment, in which only a single auxiliary member 31 is connected to one of the to-be-joined surfaces 200 to form a bump-shaped alignment structure 300 , and the outer frame unit 4 It includes a groove-shaped coordination structure 42 . Compared with the embodiment shown in FIG. 2 , only the shape of the paraposition structure 300 and the coordination structure 42 are different, otherwise the same effect as another embodiment can be achieved. . It is worth noting that in the first embodiment, although the auxiliary parts 31 are roughly in the shape of a cuboid, in actual implementation, as long as they can be fixed on the surfaces 212 (surface to be connected 200 ), they can be The auxiliary parts 31 of different shapes are used to form the alignment structures 300 of different shapes, and the coordination structures 42 also only need to match in shape, and are not limited to the shapes presented in the first embodiment.

Referring to FIG. 7 and FIG. 8, it is a second embodiment of the electrical testing device of the present invention. The difference between this second embodiment and the first embodiment is that this second embodiment includes two unit bodies 2, and the The alignment unit 3 further includes a matching piece 32 arranged between the unit bodies 2 along the second direction D2, and used to make the unit bodies 2 and the alignment unit 3 conform to the shape of the installation space 410 . As long as the matching part 32 of the aligning unit 3 is matched, the size and shape of the unit bodies 2 can be designed more freely according to the detection requirements.

It should be noted that more than three unit bodies 2 can also be used in response to actual detection requirements or manufacturing constraints, and the shape difference between these unit bodies 2 and the installation space 410 can be borrowed By connecting one or more matching pieces 32 to compensate, the unit bodies 2 and the matching pieces 32 can be installed in accordance with the type of the installation space 410, except that the first embodiment can achieve In addition to all the same functions, it can further optimize the design freedom to meet the detection requirements.

In summary, the electrical testing device of the present invention can install the alignment unit 3 on the surface 200 of the at least one unit body 2 to be connected, without considering whether the substrates 21 are aligned and can In the case of ignoring the processing tolerance, the correspondence between the alignment structure 300 and the coordination structure 42 can be used to ensure the accuracy of the alignment, thereby improving the assembly yield, so the object of the present invention can be achieved.

But what is described above is only an embodiment of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

2: unit body 200: to be interviewed 21: Substrate 211: end face 212: surface 22: Contact arm 3: Alignment unit 300: Parallel structure 31: Auxiliary parts 32: Matching pieces 4: Frame unit 41, 41': Ontology 41': frame 410: installation space 411: inner annulus 412: lap surface 413: Flange face 414: Outer side 42: Coordination structure 9: Electronic components D1: the first direction D2: Second direction D3: Third direction

Other features and effects of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: Fig. 1 is a three-dimensional exploded view illustrating an existing electrical testing device; Fig. 2 is a three-dimensional exploded view illustrating a first embodiment of the electrical testing device of the present invention; Fig. 3 is a schematic view from a side view, illustrating a situation in which a unit body of the first embodiment is assembled in an outer frame unit; Fig. 4 is a perspective view illustrating the assembled form of the first embodiment; Fig. 5 is a schematic diagram illustrating the situation of using the first embodiment to detect an electronic component; Fig. 6 is a three-dimensional exploded view similar to Fig. 2, illustrating another implementation mode of the first embodiment; Figure 7 is an exploded perspective view illustrating a second embodiment of the electrical testing device of the present invention; and FIG. 8 is a top view illustrating the assembled situation of the second embodiment and related effects.

2: unit body

200: to be interviewed

21: Substrate

211: end face

212: surface

22: Contact arm

3: Alignment unit

300: Parallel structure

31: Auxiliary parts

4: Frame unit

41: Ontology

41': frame

410: installation space

411: inner annulus

412: lap surface

413: Flange face

414: Outer side

42: Coordination structure

D1: the first direction

D2: Second direction

D3: Third direction

Claims (7)

An electrical testing device, comprising: At least one unit body, including a plurality of substrates extending along a first direction and stacked along a second direction perpendicular to the first direction, and a plurality of self-stacked adjacent two substrates, with a vertical The contact arms extending outward in the third direction of the first direction and the second direction, each substrate has two end faces located at opposite ends in the first direction, and two end faces located at opposite ends in the second direction The surface of the end defines the exposed surfaces of the substrates on opposite sides of the at least one unit body in the second direction as two surfaces to be joined; an alignment unit, connected to the at least one unit body, and including at least one auxiliary member connected to at least one of the waiting surfaces to form an alignment structure on at least one of the waiting surfaces; and An outer frame unit for the installation of the at least one unit body and the alignment unit, and includes a body defining an installation space, and at least one fitting formed on the body and whose shape matches the alignment structure structure. The electrical testing device according to claim 1, comprising a plurality of unit bodies, wherein the alignment unit further includes at least one unit arranged between the two unit bodies along the second direction, and used to make the unit bodies A matching piece that matches the type of the installation space with the alignment unit. The electrical testing device according to claim 1, wherein the main body of the outer frame unit has an inner ring surface surrounding the installation space, and an inner ring surface extending inwardly from the inner ring face and used for the at least one unit body the overlapping surfaces of the substrates. The electrical testing device as claimed in claim 3, wherein the body of the outer frame unit also has a flange surface bent from the overlapping surface, and a flange surface connected to the flange surface and away from the installation space The outer surface extending in the same direction, the distance between the overlapping surface and the outer surface is less than the length of the contact arms away from the substrates. The electrical testing device as claimed in claim 1, wherein the aligning unit includes a plurality of auxiliary parts connected to the waiting interface. The electrical testing device as described in claim 1, wherein one of the to-be-connected surfaces is connected with an auxiliary member to form a bump-shaped alignment structure, and the outer frame unit includes a groove-shaped coordination structure. The electrical testing device according to claim 1 or 5, wherein a plurality of auxiliary parts spaced from each other along the first direction are connected to one of the to-be-connected surfaces to form an alignment structure showing at least one groove shape, and the The outer frame unit includes at least one protrusion-shaped coordination structure.

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