Lens connector-testing device

Provided is a lens connector-testing device including a base, a circuit tester, a probe, and a positioning unit. The positioning unit includes a positioning housing, a lift block, an insulating plate, a press spring, a latch member and a supporting seat. The positioning housing has a lift-guiding groove. The insulating plate is fixedly connected to an upper end of the lift block. A lower end of the lift block is slidably received in the lift-guiding groove. A holding space is defined between the insulating plate and the positioning housing. The supporting seat is disposed on the positioning housing and has at least one electrical contact. The latch member has a fixing section, a hooking section, and a pressing section. The lift block has a projecting portion matched with the hooking section of the latch member. The press spring is located between the pressing section and the positioning housing.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a testing device, and more particularly to a lens connector-testing device.

2. Description of the Prior Art

With the development of technology, packing of electrical components has become small-scaled, lightweight and high density, thus the electrical products are being developed toward light, thin, short and small direction. At present, not only digital cameras and video cameras but also more and more portable electrical products such as mobile phone, PDA (Personal Digital Assistant), MP3 and so on have the photographing or recording function.

Generally, the portable electrical product having the photographing or recording function employs a lens module to electrically connect a camera lens and an inner circuit board. Wherein the lens module includes a lens connector and a lens. When installing the lens module in the electrical product, the lens connector is welded onto the inner circuit board of the electrical product, and then it is needed to test the conductive state between the lens connector and the lens. If the test result is non-conductive state of the lens connector and the lens, the lens module will be not able to normally work. So the whole lens module will be destroyed and removed, and will be replaced as a new module. Whereas maybe only one part of the lens connector is damaged, replacing and abandoning the whole lens module can result in increasing the costs of manufacture and repair, wasting time and reducing the manufacture efficiency. Therefore, in order to ensure that the lens module can normally work, it is needed to test the conductivity of the lens connector and the lens before the lens connector is welded onto the inner circuit board.

Prior lens connector-testing device mainly adopts a vertical inserting structure, which not including a lens connector-fixing structure, and a testing probe is fixedly mounted on a base. But this prior lens connector-testing device cannot ensure the testing probe to exactly contact with the contact of the lens connector thereby resulting in a heavy operation and a low testing efficiency. Furthermore, when the probe is inserted into the lens connector, the probe is easily deformed or even destroyed under the pressure function of the lens connector, so that affecting the testing circuit connection between the probe and the contact of the lens connector and directly affecting the testing accuracy. Moreover, because the testing probe is fixedly mounted on the base, the testing probe cannot match with other contacts of lens connector having different layouts. Thus the prior lens connector-testing device can test only single type of lens connector.

BRIEF SUMMARY OF THE INVENTION

An object of the present invention is to provide a lens connector-testing device having advantages of easily operated, efficiently testing, achieving a high testing accuracy, and capable of testing various lens connectors.

To achieve the above object, in accordance with the present invention, a lens connector-testing device is provided, comprising a base, a circuit tester mounted on the base, a probe connected to the circuit tester by wires, and a positioning unit. The positioning unit comprises a positioning housing, a lift block, an insulating plate, a press spring, a latch member and a supporting seat. The positioning housing has a lift-guiding groove formed on a sidewall thereof. One end of the insulating plate is fixedly connected to an upper end of the lift block. A lower end of the lift block is slidably received in the lift-guiding groove. A holding space is defined between the other end of the insulating plate and the positioning housing. The supporting seat is disposed on the positioning housing located in the holding space and has at least one electrical contact electrically connected to the circuit tester and electrically connected with a lens connector. The latch member has a fixing section pivotally jointed to the positioning housing, a hooking section extending upward from the fixing section and bending toward the lift block, and a pressing section extending downward from the fixing section. The lift block has a projecting portion matched with the hooking section of the latch member. The press spring is located between the pressing section and the positioning housing.

Based on the above description, the lens connector-testing device as provided by the present invention has one positioning unit to hold the test-waiting lens connector, and then employs one probe to test the lens connector. Therefore, the present lens connector-testing device can be easily operated and has a high testing efficiency and a high testing accuracy. Moreover, the probe is connected to the circuit tester by the wires and does not fixed on any structure, so the probe can be flexibly used to test various lens connectors.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The following embodiment with reference to the accompanying drawings now has been given for detail describing the technology, the feature, the object and the effect of the present invention.

Please refer toFIG. 1 to 3, a lens connector-testing device1according to one embodiment of the present invention comprises a probe10, a circuit tester20, a base30and a positioning unit40. The probe10is connected to the circuit tester20by wires. The circuit tester20is mounted on the base30. The positioning unit40comprises a positioning housing41, a lift block42, an insulating plate43, a press spring44, a latch member45and a supporting seat46. As shown inFIG. 3, the positioning housing41has a lift-guiding groove410formed on the sidewall thereof. One end430of the insulating plate43is fixedly connected to an upper end of the lift block42, and a lower end of the lift block42is slidably received in the lift-guiding groove410. A holding space4113labeled inFIG. 2is defined between the other end432of the insulating plate43and the positioning housing41. The supporting seat46is disposed on the positioning housing41located in the holding space4113, and has at least one electrical contact that is electrically connected to the circuit tester20and may be electrically connected with a lens connector47. The latch member45has a fixing section452, a hooking section451extending upward from the fixing section452and bending toward the lift block42, and a pressing section453extending downward from the fixing section452. The fixing section452is pivotally jointed to the positioning housing41. The lift block42has a projecting portion421matched with the hooking section451of the latch member45. Specifically, a free end of the projecting portion421has an oblique plane and is projected from the lift block42to match with the hooking section451.

In this embodiment, the positioning housing41has a latch-holding groove411passing through a top and bottom surfaces41a,41bthereof. The fixing section452of the latch member45is pivotally mounted into the latch-holding groove411by an anchor pin48, and the press spring44is located between the pressing section453and the latch-holding groove411. Specifically, a lift spring412is disposed in the lift-guiding groove410passing through the top and bottom surfaces41a,41bof the positioning housing41. One end of the lift spring412contacts with the base30by a connecting block413, and the other end thereof contacts with the lift block42.

Referring toFIG. 3, on one embodiment of the present invention, the supporting seat46is used to simulate a lens, and the lens connector47is mounted onto the supporting seat46to form a lens module67for the convenience of the probe10testing. The lens connector-testing device1of the present invention employs the supporting seat46as a lens thereby avoiding using the real lens in testing and reducing the waste of the real lens.

The insulating plate43is vertically connected to the upper end of the lift block42by a retaining screw431. Specifically, the lens connector-testing device1further comprises a cover50mounted on a sidewall41cof the positioning housing41, on which the lift-guiding groove410is formed.

The circuit tester20may be a buzzer, or any other warning device. The base30also disposes a power source60such as a dry battery for supplying the power to the buzzer. The buzzer can generate sound when the probe10tests the lens connector47is under the conducting state.

Referring toFIG. 1 to 7, the working principle of the present lens connector-testing device1is as follows:

First, the lens connector47is mounted on the supporting seat46to constitute the lens module67.

Then, the lift block42is pushed down along the arrow direction ofFIG. 5and can further compress the lift spring412, so that the projecting portion421can make the oblique plane of the free end push hooking section451away and the pressing section453of the latch member45can compress the press spring44simultaneously. When the lift block42is completely pushed down and arrives at the lowest place, the latch member45can be restored to the original place by the aid of the elastic force of the press spring44. At the same time, the projecting portion421of the lift block42can match with the hooking section451of the latch member45again. During the course of the lift block42going down, the insulating plate43also moves downward and finally makes the lens connector47come into a hole434formed thereon thereby holding the lens connector47in the holding space4113. The hole434is labeled inFIG. 2.

Next, the probe10can test the lens connector47. If the buzzer20generates sound when the probe10contacts the contact of the lens connector47, it proves that the connection of the lens connector47and the lens is conductive and lens connector47is good. Whereas if the buzzer20does not generate sound, it is proved that their connection is non-conductive and the lens connector47is bad. After one lens connector being tested, it is needed to press an outer side of the latch member45to make it rotate around the anchor pin48thereby releasing the matching state between the projecting portion421and the hooking section451. Simultaneously, the pressing section453can compress the press spring44. The lift block42, together with the insulating plate43, can be automatically raised at the original place under the function of the lift spring412, thus the insulating plate43can release the tested lens connector47standing on the hole434and the tested lens connector47can be replace as next test-waiting lens connector. Finally, withdrawing the outside force exerted on the latch member45can make the latch member45automatically return to the original state under the function of the elastic force of the press spring44.

As described above, the lens connector-testing device1of the present invention has one positioning unit40to hold the test-waiting lens connector47, and then employs one probe10to test the lens connector47. Therefore, the present lens connector-testing device1can be easily operated and has a high testing efficiency and a high testing accuracy.