Switching FPC jig for optimizing sensor electrical test

Abstract

The utility model discloses a switching FPC jig for optimizing a sensor electrical test. The switching FPC jig comprises a left-end TX part, a right-end TX part and a middle-section RX part, the left end TX part and the right end TX part are arranged in a transverse communication manner; an opening is formed between the left-end TX part and the right-end TX part, and first positioning PINs are arranged on the left-end TX part and the right-end TX part and located on the end face of one side of the opening; the middle section RX part extends outwards from the opening, the extending end of the middle section RX part is provided with a second positioning PIN which is arranged downwards, and the middle section RX part can be bent. According to the switching FPC jig, the middle section RX part of the switching FPC jig is prolonged and is made of the bendable material, so that the middle section RX part can be quickly lapped with the middle section RX part after being bent, a touch screen sensor does not need to be bent, the touch screen sensor is prevented from being misjudged as an open circuit due to poor lapping, the touch screen sensor is prevented from being broken, and the service life of the switching FPC jig is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a switching FPC fixture, especially a switching FPC fixture for optimizing sensor electric property test. BACKGROUND

[0002] When the touch screen sensor is measured under false pressure, the bonding area of the sensor is not bound together with the FPC, and the electric property test of the touch screen sensor cannot be carried out through the electric test fixture. Generally, the switching FPC fixture is used to connect the touch screen sensor and one end of the switching FPC together, the other end of the switching FPC is connected with the PCB board, and the PCB board is connected with the electric test fixture, so that the electric property test of the touch screen sensor can be carried out.

[0003] The length of the bonding area PIN of the existing switching FPC fixture is generally very short, only 1.2 mm. When the touch screen sensor is FF structure and 1T1R F2 structure, the length of the bonding area PIN of the conventional switching FPC fixture is short, which will not affect the lap joint of the bonding area of the sensor and the bonding area of the switching FPC fixture, and will not affect the false pressure electric property test.

[0004] However, when the touch screen sensor is 2T1R F2 structure, since the length of the bonding area PIN of the conventional switching FPC fixture is short, the TX and RX of the bonding area of the sensor need to be folded several times, so as to lap joint with the bonding area of the switching FPC fixture. This will cause the bonding area of the sensor and the bonding area of the switching FPC fixture to appear lap joint failure, so as to misjudge as open circuit, causing the electric property test yield to decrease, the good product to be misjudged as defective product, and the production cost to increase. At the same time, the bonding area of the sensor is folded several times, which will cause the bonding area of the sensor to be damaged and shorten the service life of the switching FPC fixture. Utility model content

[0005] The utility model aims at overcoming the defects of the prior art and provides a switching FPC fixture for optimizing sensor electric property test, which has the characteristics of accurate test, low cost and long service life.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of a switching FPC fixture for optimizing sensor electric property test, which comprises a left end TX part, a right end TX part and a middle segment RX part.

[0007] The left end TX part and the right end TX part are arranged transversely in communication; the left end TX part and the right end TX part have an opening therebetween, and a first positioning pin is arranged on an end face of the left end TX part and the right end TX part on one side of the opening, and the first positioning pin is arranged upward;

[0008] The middle section RX part extends outward from the opening, and a second positioning pin is arranged on an extending end of the middle section RX part, and the second positioning pin is arranged downward, and the middle section RX part can be bent;

[0009] After the middle section RX part is bent towards the opening between the left end TX part and the right end TX part, the second positioning pin is arranged downward, and the middle section RX part is arranged above a horizontal line between the left end TX part and the right end TX part.

[0010] In an embodiment, the middle section RX part is made of a flexible material.

[0011] In an embodiment, the left end TX part and the right end TX part are both made of a flexible material.

[0012] In an embodiment, the middle section RX part is at least more than 2 times longer than the vertical length of the wire in the left end TX part and the right end TX part in a vertical direction.

[0013] In an embodiment, the first positioning pins on the left end TX part and the right end TX part are arranged in the same horizontal direction.

[0014] In an embodiment, the left end TX part and the right end TX part are provided with interfaces at lower ends.

[0015] In an embodiment, the left end TX part, the right end TX part and the middle section RX part are further provided with an EMI shielding layer on outer surfaces.

[0016] Due to the use of the above technical solution, the utility model has the following advantages compared with the prior art:

[0017] 1. The middle section RX part of the adapter FPC jig is elongated and made of a flexible material, so that the middle section RX part can be quickly connected with the middle RX of the touch screen sensor after being bent, without the need to bend the touch screen sensor, so that the touch screen sensor is not misjudged as being disconnected due to poor connection, the touch screen sensor is not damaged, and the service life of the adapter FPC jig is prolonged.

[0018] 2. Add EMI shielding layer on the adapter FPC fixture's flat cable, which can eliminate the capacitive coupling effect of the left end TX part, the right end TX part and the middle section RX part, avoid the interference to the capacitance of the touch screen sensor, so as to not affect the false pressure electrical property test. BRIEF DESCRIPTION OF DRAWINGS

[0019] The technical scheme of the utility model will be further described below in combination with the drawings:

[0020] Figure 1 It is a top view of an embodiment of the utility model;

[0021] Figure 2 It is a top view of an embodiment of the utility model after bending;

[0022] Figure 3 It is a front sectional view of Figure 2 ;

[0023] Figure 4 It is a side view partial sectional view of Figure 3 ;

[0024] Figure 5 It is a top view of the touch screen sensor;

[0025] Wherein: 1, left end TX part; 2, right end TX part; 3, middle section RX part; 4, opening; 5, interface; 6, touch screen sensor; 10, first positioning PIN; 30, second positioning PIN; 8, fixture body; 11, left end TX; 12, right end TX; 13, middle RX; 14, third positioning PIN; 15, fourth positioning PIN. DETAILED DESCRIPTION

[0026] In order to make the personnel in the technical field better understand the scheme of the application, the technical scheme in the embodiments of the application will be clearly and completely described below in combination with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the application.

[0027] The utility model provides a kind of sensor electrical property test's adapter FPC fixture, to solve the problem that touch screen sensor is caused by the problem of short circuit misjudgment due to bad lap joint when being bent in prior art when touch screen sensor is tested by adapter FPC fixture, touch screen sensor is easy to be damaged and the service life of adapter FPC fixture is short.

[0028] For ease of understanding, the specific process in the embodiments of the present application is described below. Please refer to Figures 1 to 4 The switching FPC jig for optimizing sensor electrical property test in the embodiments of the present application comprises a left end TX part 1, a right end TX part 2 and a middle section RX part 3. The left end TX part 1 and the right end TX part 2 are arranged transversely in communication. The left end TX part 1 and the right end TX part 2 have an opening 4 therebetween. A first positioning PIN 10 is arranged on one side end face of the opening 4 of the left end TX part 1 and the right end TX part 2, and the first positioning PIN is arranged upward. The middle section RX part 3 extends outward from the opening 4. A second positioning PIN 30 is arranged on the extension end of the middle section RX part 3, and the second positioning PIN 30 is arranged downward. Meanwhile, the middle section RX part 3 can be bent.

[0029] In use, the middle section RX part 3 is bent between the left end TX part 1 and the right end TX part 2 at the opening 4. The second positioning PIN 30 is arranged downward, and the middle section RX part 3 is located above the horizontal line connecting the left end TX part 1 and the right end TX part 2.

[0030] In an embodiment, the middle section RX part 3 is composed of a flexible material, so that the middle section RX part 3 can be bent multiple times without being damaged, meeting the actual use requirements. The middle section RX part 3 in the embodiment is bent twice. Of course, it can be bent more than twice. As long as the middle section RX part 3 is located above the horizontal line connecting the left end TX part 1 and the right end TX part 2, the second positioning PIN 30 is located above the line connecting the two first positioning PINs and at the opening 4 for the convenience of connection.

[0031] In addition, the left end TX part 1 and the right end TX part 2 can also be composed of a flexible material, so as to maintain the unity of the left end TX part 1, the right end TX part 2 and the middle section RX part 3, and the durability is strong.

[0032] In an embodiment, the middle section RX part 3 is located in the middle of the two first positioning PINs 10 in the horizontal direction, and has a certain distance from the two first positioning PINs 10 in the vertical direction. The distance is designed according to the space of the FPC jig wire, and is generally at least more than 2 times the vertical length of the wire of the left end TX part 1 or the right end TX part 2.

[0033] In an embodiment, the first positioning PIN 10 on the left end TX part 1 and the right end TX part 2 is in the same horizontal direction. This can be adjusted according to the sensor to meet the actual use requirements.

[0034] In an embodiment, the lower end of the left TX part 1 and the right TX part 2 is provided with an interface 5, through which the electrical measuring tool on the PCB can be connected for testing.

[0035] In an embodiment, the outer surface of the left TX part, the right TX part and the middle RX part is additionally provided with an EMI shielding layer, so that when the false voltage electrical measurement is performed, the left TX part, the right TX part and the middle RX part will not produce coupling effect, will not produce parasitic capacitance, and will not affect the capacitance of the touch screen sensor 6 during the false voltage electrical measurement, so as not to interfere with the false voltage electrical measurement.

[0036] Referring to Figures 1 to 5 , the following will take the bending of the middle RX part twice as an embodiment to illustrate the lapping mode of the conversion FPC tool and the touch screen sensor.

[0037] The touch screen sensor 6 is placed above the left TX part 1 and the right TX part 2 of the conversion FPC tool, so that the two first positioning pins 10 and the two second positioning pins 14 are aligned one by one, the second positioning pin 14 on the left end downward is lapped with the first positioning pin 10 on the left end upward; the second positioning pin 14 on the right end downward is lapped with the first positioning pin 10 on the right end upward; the middle RX part 3 is bent twice, so that the middle RX part 3 is located above the middle RX part, at this time the second positioning pin 30 of the middle RX part 3 is arranged downward and located between the two first positioning pins 10, while the fourth positioning pin 15 on the middle RX part is arranged upward, under the action of a certain pressure, the second positioning pin and the fourth positioning pin 15 are pressed together, so as to complete the lapping, so that the three segment areas can be completely lapped together to form a complete electrical measurement loop.

[0038] In this way, during the false voltage test process, the touch screen sensor does not need to be repeatedly bent, so the touch screen sensor will not be deformed and damaged, and the touch screen sensor and the conversion FPC tool will not be offset during the false voltage process, so as not to cause poor lapping phenomenon, and not to misjudge the good product as a bad product to affect the false voltage electrical measurement; at the same time, the PIN in the bonding area of the conversion FPC tool will not be squeezed, so as to prolong the service life of the conversion FPC tool.

[0039] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A converter FPC fixture for optimizing sensor electrical testing, characterized in that, It comprises a left end TX part (1), a right end TX part (2) and a middle section RX part (3); The left end TX part (1) and the right end TX part (2) are arranged transversely; the left end TX part (1) and the right end TX part (2) have an opening (4) therebetween, and a first positioning PIN (10) is arranged on one side end face of the opening (4) of the left end TX part (1) and the right end TX part (2), and the first positioning PIN (10) is arranged upward; The middle section RX part (3) extends outward from the opening (4), and a second positioning PIN (30) is arranged on the extending end of the middle section RX part (3), and the second positioning PIN (30) is arranged downward, and the middle section RX part (3) can be bent; After the middle section RX part (3) is bent to the opening (4) between the left end TX part (1) and the right end TX part (2), the second positioning PIN (30) is arranged downward, and the middle section RX part (3) is located above the horizontal line between the left end TX part (1) and the right end TX part (2).

2. The FPC adapter for optimizing sensor electrical test of claim 1, wherein: The middle section RX part (3) is made of flexible material.

3. The adapter FPC fixture for optimizing sensor electrical testing as described in claim 1, characterized in that: The left end TX part (1) and the right end TX part (2) are made of flexible material.

4. The FPC adapter for optimizing sensor electrical test of claim 1, wherein: The middle section RX part (3) is at least more than 2 times of the vertical length of the wire in the left end TX part (1) and the right end TX part (2) from the two first positioning PINs (10) in the vertical direction.

5. The FPC adapter for optimizing sensor electrical test of claim 1, wherein: The first positioning PINs (10) on the left end TX part (1) and the right end TX part (2) are in the same horizontal direction.

6. The FPC adapter for optimizing sensor electrical test of claim 1, wherein: The lower ends of the left end TX part (1) and the right end TX part (2) are provided with interfaces (5).

7. The FPC adapter for optimizing sensor electrical testing of claim 1, wherein: An EMI shielding layer is additionally arranged on the outer surfaces of the left end TX part (1), the right end TX part (2) and the middle section RX part (3).

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