TWM555106U - Jig for circuit board testing - Google Patents

Abstract

A fixture for detecting a circuit board, comprising a test device carrier, a fixing component and a fastening mechanism. The fixing assembly has a circuit board fixing space, and the test device carrier is movably disposed on the fixing component to have a test position relatively close to the circuit board fixing space and a disengaged position relatively far from the circuit board fixing space. The fastening mechanism is disposed on the test device carrier and the fixing component, and the fastening mechanism can maintain the test device carrier in the test position.

Description

Circuit board test fixture

The present invention relates to a jig, and more particularly to a jig for detecting a circuit board.

Printed circuit boards (PCBs) are extremely important electronic devices in various electronic products. They are generally used to form a plurality of wires made of metal conductors on a substrate by electronic printing to serve as circuit connections between the various components on the circuit board. . In the technical fields of communication systems, server systems, or test systems, one or more boards are also used as system boards in this system.

In order to confirm whether the circuit board after processing is defective or short-circuited, after the board is manufactured, it is electrically tested by a test device. In general, the electrical detection method will use a dedicated electrical test device, and electrically connect the probe on the circuit board to be tested with the measurement contact point on the test circuit board (function test board) in the test device. In order to carry out electrical testing. Before the test, the circuit board to be tested is fixed at a specific position, and then the test device is pressed down to be in close contact with the probe of the circuit board to be inspected.

However, the aforementioned electrical detection has the problem of inaccurate measurement results because the test circuit board may be tilted or offset such that its measurement contact point does not have good electrical contact with a portion of the probe of the circuit board to be inspected. Therefore, it is necessary to solve the problem that the electrical detection result is inaccurate due to the lack of good electrical contact between the measurement contact point and the probe.

In view of the above problems, the present invention discloses a jig for detecting a circuit board, which helps to accurately, simply and quickly electrically connect the probe on the circuit board to be tested to the measuring contact point of the test device.

The jig for detecting a circuit board disclosed in the present invention comprises a test device carrier, a fixing component and at least one fastening mechanism. The fixing component has a circuit board fixing space, and the testing device carrier is movably disposed on the fixing component to have a test position relatively close to the circuit board fixing space and a disengagement position relatively far from the circuit board fixing space. The fastening mechanism is disposed on the test device carrier and the fixing component, and the fastening mechanism can maintain the test device carrier in the test position.

The jig for detecting a circuit board according to another aspect of the present invention comprises a test device carrier, a fixing component and a second fastening mechanism. The test device carrier includes a carrier and a first connector and a second connector disposed on the carrier. The fixing component comprises a first fixing component and a second fixing component. A first fixing member includes a first inner portion, a first outer portion and a first elastic member. The first inner portion is opposite to the first outer portion, and the first connecting member is movably disposed between the first inner portion and the first outer portion. The first elastic member is disposed between the first connecting member and the first inner portion or between the first connecting member and the first outer portion. The second fixing member comprises a second inner portion, a second outer portion and a second elastic member. The second inner portion is opposite to the second outer portion, and the second connecting member is movably disposed between the second inner portion and the second outer portion. The second elastic member is disposed between the second connecting member and the second inner portion or between the second connecting member and the second outer portion. The fastening mechanism includes a hook and a fastener corresponding to the hook. The two hooks are disposed on the carrier of the test device carrier, and the two fasteners are respectively disposed on the first outer portion and the second outer portion.

According to the jig for detecting a circuit board disclosed in the present invention, the test device carrier is movably disposed on the fixing component and has a test position relatively close to the fixed space of the circuit board and a disengaged position relatively far from the fixed space of the circuit board, and when being fastened The test device carrier can be held in the test position when the mechanism is engaged. Thereby, it is helpful to accurately, simply and quickly connect the probe on the circuit board to be tested to the measuring contact point of the testing device and maintain close contact, thereby achieving the purpose of testing.

The above description of the disclosure and the following description of the embodiments are intended to illustrate and explain the spirit and principles of the present invention, and to provide further explanation of the scope of the patent application of the present invention.

The detailed features and advantages of the present invention are described in detail in the following detailed description of the embodiments of the present invention. Any related art and related art can easily understand the related purposes and advantages of the present invention. The following examples further illustrate the aspects of the present invention in detail, but do not limit the scope of the present invention in any way.

Please refer to FIG. 1 to FIG. 3. 1 is a perspective view of a jig for detecting a circuit board according to an embodiment of the present invention. 2 is an exploded perspective view of the jig for detecting a circuit board of FIG. 1. 3 is a side elevational view of the jig for detecting a circuit board of FIG. 1. In the present embodiment, the jig for detecting the circuit board 1 includes a test device holder 10, a fixing assembly 20, and two fastening mechanisms 30.

The test device carrier 10 includes a carrier 110 and two connectors 120. The carrier 110 has a top surface 111 and a bottom surface 112 opposite to each other. The top surface 111 can carry a test device for detecting a circuit board (for example, a test circuit board that detects whether the electrical function is normal). The two connecting members 120 are respectively disposed on opposite sides of the bottom surface 112 and extend away from the bottom surface 112. The two connecting members 120 of the embodiment are disposed on the bottom surface 112 of the carrier 110, but the present invention is not limited thereto. In other embodiments, the connector may be disposed on a side or top surface of the carrier and extending to a bottom surface of the carrier.

The fixing assembly 20 includes two fixing members 210 , and each fixing member 210 includes an inner portion 211 , an outer portion 212 , a plurality of coupling rods 213 , and a plurality of elastic members 214 . In this embodiment, the two fixing members 210 are two independent components, but the present invention is not limited thereto. In other embodiments, the two fixing members are connected to each other through the inner side portion or the outer side portion, and the fixing assembly is made into one piece.

The inner portion 211 is opposed to the outer portion 212, and the distance D1 between the two inner portions 211 is smaller than the distance D2 between the two outer portions 212. Each of the connecting members 120 of the test device carrier 10 has a plurality of sliding slots 121, and the inner side portion 211 and the outer side portion 212 of each fixing member 210 respectively have a plurality of through holes 215. The number of the chute 121 and the through hole 215 corresponds to the number of the coupling rods 213. However, the number of the sliding groove 121, the coupling rod 213, the elastic member 214 and the through hole 215 are not limited to the present invention.

The coupling rod 213 is fixed to the fixing member 210 by, for example, but not limited to, a screw, and a through hole 215 of the inner portion 211 and the outer portion 212 of the fixing member 210 is respectively disposed at opposite ends. In addition, each of the coupling rods 213 is respectively inserted through one of the corresponding sliding slots 121, and is assembled by the coupling rod 213 and the sliding slot 121 to mount the connecting member 120 to the fixing member 210, and simultaneously carried to the testing device. The seat 10 has appropriate movability in the vertical direction of FIG. 3, whereby the two connecting members 120 of the test device carrier 10 are movably disposed on the inner side portion 211 and the outer side portion 212 of the two fixing members 210, respectively. between. However, the assembly of the aforementioned coupling rod 213 and the chute 121 is not intended to limit the present invention. In other embodiments, the slide rails may be respectively formed on the inner side portion and the outer side portion of the fixing member, and the connecting members of the carrier seat are disposed on the slide rails.

The elastic member 214 is, for example but not limited to, a compression spring that is disposed between the connecting member 120 and the inner side portion 211. In the present embodiment, the elastic members 214 are further sleeved on the coupling rods 213, but the arrangement of the elastic members 214 on the coupling rods 213 is not intended to limit the present invention. In addition, the elastic member 214 of the present embodiment is a compression spring disposed between the connecting member 120 and the inner portion 211, but the present invention is not limited thereto. In other embodiments, the resilient member can be a tension spring disposed between the connector and the outer portion.

In addition, the fixing assembly 20 also has a circuit board fixing space 220. In detail, the circuit board fixing space 220 is formed between the two inner side portions 211 of the two fixing members 210 of the fixing assembly 20. The function of the board fixing space 220 will be described later.

The two fastening mechanisms 30 are disposed on the test device carrier 10 and the fixing assembly 20 . In detail, each of the fastening mechanisms 30 includes a hook 310 and a fastener 320 corresponding to the hook 310. The two hooks 310 are respectively disposed on opposite sides of the carrier 110 of the test device carrier 10 , and the two fasteners 320 are respectively disposed on the outer portions 212 of the two fixing members 210 of the fixing component 20 . The function of the fastening mechanism 30 will be described later.

Next, a method of fixing the jig 1 for board detection together with the test device 2 to a board to be inspected 3 will be described. Please refer to FIG. 3 to FIG. 6 together. 4 and 5 are schematic views showing the jig for detecting a circuit board of FIG. 1 on which a test device is mounted, on a circuit board to be inspected. Figure 6 is a schematic view showing a test portion of the test apparatus of Figure 5 in contact with a circuit board to be inspected. As shown in FIGS. 3 and 4, a test device 2 is mounted above the carrier 110 of the test device carrier 10 of the jig detecting fixture 1. A test portion 21 of the test device 2 corresponds to an opening 113 of the carrier 110 such that a plurality of measurement contact points on the test portion 21 can face the circuit board fixing space 220.

As shown in FIG. 4, the two fixing members 210 are first pulled to increase the width of the circuit board fixing space 220 to be larger than the width of the detecting block 31 of the circuit board 3 to be inspected. When the fixing member 210 of the fixing assembly 20 is pulled, the inner portion 211 of the fixing member 210 compresses the elastic member 214 to store the elastic member 214 to store the elastic potential energy. Next, the jig 1 for moving the circuit board is detected to a predetermined fixed position so that a part of the detecting seat 31 can be accommodated in the circuit board fixing space 220. Next, as shown in FIG. 5, the two fixing members 210 are released to release the elastic position energy of the elastic member 214 to drive the fixing member 210 to be reset, thereby reducing the width of the circuit board fixing space 220 in FIG. Since the width of the circuit board fixing space 220 when the fixing member 210 is not pulled is smaller than the width of the detecting seat 31, it can be ensured that the two fixing members 210 can tightly clamp the opposite sides of the detecting seat 31, thereby allowing the circuit board to detect the fixture. 1 can be stabilized on the detection seat 31. In this embodiment, the plurality of elastic members 214 of the two fixing members 210 respectively provide a pre-pressure in a pre-pressing direction P to the inner side portions 211 of the two fixing members 210 to maintain the width of the circuit board fixing space 220. Thereby, it is helpful to ensure that the two fixing members 210 of the jig detecting jig 1 can firmly and tightly hold the detecting seat 31 to prevent the jig detecting jig 1 from being accidentally detached.

As shown in FIG. 5, when the jig for detecting the circuit board 1 is fixed to the detecting seat 31 of the circuit board 3 to be inspected and the fastening mechanism 30 has not been engaged, the test device carrier 10 is located relatively far from the circuit board fixing space 220 ( That is, a disengaged position relatively far from the detecting seat 31). In the disengaged position, the plurality of probes 32 on the test block 31 are separated from the plurality of measurement contact points of the test portion 21 of the test device 2. When the test device of the other embodiment is in the disengaged position, the probe and the measurement contact point may be in slight contact but the electrical connection between the two may not be achieved.

As shown in FIG. 5 and FIG. 6 , the fasteners 320 of the fastening mechanism 30 are hooked to the corresponding hooks 310 , and the pulling portion 321 of the fasteners 320 is pushed to be pivotally fastened and interlocked. The test device carrier 10 is moved down to a test position relatively close to the circuit board mounting space 220. In the test position, the probes 32 are electrically connected to each other in close contact with the plurality of measurement contact points of the test portion 21, thereby enabling subsequent electrical detection procedures.

In addition, in this embodiment, a rubber pad or an elastic body (not shown) such as a spring may be interposed between the carrier member 110 and the two fixing members 210, so that the fastening device 30 releases the buckled state, and the test device carries The seat 10 can be reset by the elastic body to the aforementioned disengaged position.

As shown in FIG. 5 and FIG. 6, in order to enable a good alignment between the test portion 21 of the test device 2 and the probe 32 of the circuit board 3 to be inspected, the test device carrier 10 of the present embodiment further includes The two circuit boards of the bottom surface 112 of the carrier 110 are positioned on the column 130, and the detecting block 31 of the circuit board 3 to be inspected has two positioning holes 33 corresponding to the two circuit board positioning posts 130, respectively. The number of the board positioning posts 130 and the positioning holes 33 is not intended to limit the present invention.

In addition, as shown in FIG. 2, the two fixing members 210 of the embodiment respectively have a circuit board matching groove 211a on the inner side portion 211. When the jig 1 for detecting the board is to be fixed to the detecting seat 31 of the circuit board 3 to be inspected, the matching pad 211a of the circuit board helps the auxiliary fixing member 210 and the detecting seat 31 to be positioned to avoid the jig for detecting the circuit board 1 The mounting direction is offset.

Furthermore, the two fastening mechanisms 30 of the present embodiment are respectively located on opposite sides of the fixing assembly 20, thereby ensuring the test device carrier when the fastening mechanism 30 is engaged to drive the test device carrier 10 to move downward. The force applied to 10 is relatively even, thereby preventing the carrier 110 of the test device carrier 10 from tilting and over-pressing the probe 32.

In summary, in the jig for detecting a circuit board disclosed in the present invention, the test device carrier is movably disposed on the fixing component and has a test position relatively close to the fixed space of the circuit board and a disengaged position relatively far from the fixed space of the circuit board. And the test device carrier can be held in the test position when the fastening mechanism is engaged. Thereby, it is helpful to accurately, simply and quickly connect the probe on the circuit board to be tested to the measuring contact point of the testing device and maintain close contact.

In addition, the circuit board positioning post of the test device carrier helps to guide the test device mounted on the carrier to be aligned with the circuit board to be inspected to ensure that each probe can be accessed when the carrier is pressed down to the test position. A measurement contact point corresponding thereto.

Although the present invention has been disclosed above in the foregoing embodiments, these embodiments are not intended to limit the present invention. The changes and refinements of the present invention are within the scope of the patent protection of the present invention without departing from the spirit and scope of the present invention. Please refer to the attached patent application for the scope of protection defined by this new model.

1‧‧‧Card for board inspection
2‧‧‧Testing device
21‧‧‧Test Department
3‧‧‧When the board to be tested
31‧‧‧Detector
32‧‧‧ probe
33‧‧‧Positioning holes
10‧‧‧Testing device carrier
110‧‧‧Carrier
111‧‧‧ top surface
112‧‧‧ bottom
113‧‧‧ openings
120‧‧‧Connecting parts
121‧‧‧Chute
130‧‧‧Board positioning column
20‧‧‧Fixed components
210‧‧‧Fixed parts
211‧‧‧ inside part
211a‧‧‧Board matching slot
212‧‧‧Outside
213‧‧‧ Bonding rod
214‧‧‧Flexible parts
215‧‧‧Perforation
220‧‧‧Board fixed space
30‧‧‧Withholding mechanism
310‧‧‧hook
320‧‧‧Snap fasteners
321‧‧‧Turning Department
D1, D2‧‧‧ distance
P‧‧‧Preload direction

1 is a perspective view of a jig for detecting a circuit board according to an embodiment of the present invention. 2 is an exploded perspective view of the jig for detecting a circuit board of FIG. 1. 3 is a side elevational view of the jig for detecting a circuit board of FIG. 1. 4 and 5 are schematic views showing the jig for detecting a circuit board of FIG. 1 on which a test device is mounted, on a circuit board to be inspected. Figure 6 is a schematic view showing a test portion of the test apparatus of Figure 5 in contact with a circuit board to be inspected.

1‧‧‧Card for board inspection

2‧‧‧Testing device

21‧‧‧Test Department

3‧‧‧When the board to be tested

31‧‧‧Detector

32‧‧‧ probe

33‧‧‧Positioning holes

110‧‧‧Carrier

111‧‧‧ top surface

112‧‧‧ bottom

113‧‧‧ openings

130‧‧‧Board positioning column

210‧‧‧Fixed parts

211‧‧‧ inside part

212‧‧‧Outside

213‧‧‧ Bonding rod

214‧‧‧Flexible parts

310‧‧‧hook

320‧‧‧Snap fasteners

321‧‧‧Turning Department

Claims (10)

A fixture for detecting a circuit board, comprising: a test device carrier; a fixing component having a circuit board fixing space, wherein the test device carrier is movably disposed on the fixing component and has a relatively close to the circuit board fixing space a test position and a disengaged position away from the fixed space of the circuit board; and at least one fastening mechanism disposed on the test device carrier and the fixing component, and the at least one fastening mechanism enables the test device carrier Stay at the test location. The jig for detecting a circuit board according to the first aspect of the invention, wherein the number of the at least one fastening mechanism is two, and the two fastening mechanisms are respectively disposed on opposite sides of the fixing component. The jig for detecting a circuit board according to the second aspect of the invention, wherein the test device carrier comprises a carrier and two connectors, and the two connectors are disposed on opposite sides of the carrier, the two connectors The fixing component is movably disposed, and a part of the two fastening mechanisms are disposed on the carrier. The fixture for detecting a circuit board according to the third aspect of the invention, wherein a bottom surface of the carrier member faces the fixed space of the circuit board, and the test device carrier further comprises a circuit board positioning column disposed on the bottom surface. . The fixture for detecting a circuit board according to the third aspect of the invention, wherein the fixing component comprises two fixing members, wherein the two connecting members are respectively movably disposed on the two fixing members, and the fixing space of the circuit board is located at the two fixing portions. One of the two fastening mechanisms is disposed between the carrier and the two fixing members, and the other fastening mechanism is disposed on the carrier and the other fixing member. The fixture for detecting a circuit board according to claim 5, wherein the two fastening mechanisms respectively comprise a hook and a fastener corresponding to the hook, and the hooks are respectively disposed on the carrier The two opposite sides of the two fasteners are respectively disposed on the two fixing members. The fixture for detecting a circuit board according to claim 5, wherein the two fixing members respectively comprise a coupling rod, an opposite inner portion and an outer portion, wherein opposite ends of the coupling rod are respectively disposed on the inner side And the outer portion, the connecting member is movably disposed between the inner portion and the outer portion, the connecting member has a sliding slot, and the connecting rod penetrates the sliding slot. The jig for detecting a circuit board according to the seventh aspect of the invention, wherein the two fixing members further comprise an elastic member between the inner portion and the connecting member, and the two elastic members respectively provide a pre-stress The two inner portions are given to maintain the width of the board fixing space. The jig for detecting a circuit board according to the fifth aspect of the invention, wherein the two fixing members respectively have a circuit board matching groove. A fixture for detecting a circuit board, comprising: a test device carrier, comprising a carrier and a first connector and a second connector disposed on the carrier; a fixing component comprising: a first fixing component a first inner portion, a first outer portion, and a first elastic member, the first inner portion is movably disposed on the first inner portion and the first inner portion relative to the first outer portion Between the first outer portions, and the first elastic member is disposed between the first connecting member and the first inner portion or between the first connecting member and the first outer portion; and a second fixing member The second inner portion and the second outer portion are opposite to the second outer portion, and the second connecting member is movably disposed on the second inner portion and the second inner portion Between the second outer portions, and the second elastic member is disposed between the second connecting member and the second inner portion or between the second connecting member and the second outer portion; and a fastening mechanism, Each includes a hook and a fastener corresponding to the hook, the two The carrier hook is provided to the test device carrier base, and the two fastener members are respectively disposed in the first outer portion and the second outer portion.