Signal transmission module, test system and electronic equipment

Abstract

The utility model discloses a signal transmission module, a test system and electronic equipment, and belongs to the technical field of display. The first circuit board can be electrically connected with the radio frequency module in the electronic equipment, and the second circuit board can be electrically connected with the antenna module in the electronic equipment. The second circuit board is connected with the first circuit board through the plugging effect of the second connector and the first connector, the second circuit board is further connected with the test circuit board through the third connector, and the second connector and the third connector in the second circuit board are electrically connected. Therefore, the radio frequency module and / or the antenna module can be tested through the test circuit board. Therefore, there is no need to reserve an extra area for welding the test line in the circuit board, and the space utilization rate of the circuit board can be improved. In addition, the process of testing the antenna module and / or the radio frequency module can be effectively simplified, and then the difficulty of testing the antenna module and / or the radio frequency module in the electronic equipment can be reduced.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and particularly to a signal transmission module, a test system, and an electronic device. Background Art

[0002] With the development of communication technologies, electronic devices such as smart phones have become increasingly popular. During the use of electronic devices, the performance requirements for antennas in the electronic devices are getting higher and higher. Before the electronic devices leave the factory, it is usually necessary to optimize and test the performance of the antennas, such as the bandwidth, frequency band, radiation efficiency, etc., to ensure that the performance of the antennas meets the requirements of the design specifications.

[0003] Currently, during the process of testing the signals of the antennas in electronic devices, it is often necessary to weld test lines on the printed circuit boards in the electronic devices to test the antennas. However, the internal space of the printed circuit boards is usually small, which leads to a greater difficulty in welding, and further leads to a higher difficulty in testing the antennas. Summary of the Utility Model

[0004] Embodiments of the present application provide a signal transmission module, a test system, and an electronic device. The problem of relatively high difficulty in testing the antennas in electronic devices can be solved. The technical solutions are as follows:

[0005] On the one hand, a signal transmission module is provided, including: a first circuit board and a second circuit board;

[0006] The first circuit board has a first connector, and the first circuit board is used for electrically connecting with a radio frequency module in the electronic device;

[0007] The second circuit board has a second connector and a third connector arranged oppositely. The second connector and the third connector are respectively located on two opposite surfaces of the second circuit board, and the second connector and the third connector are electrically connected. The second connector is plugged into the first connector, and the second circuit board is used for electrically connecting with an antenna module in the electronic device;

[0008] Wherein, the third connector is used for electrically connecting with a test circuit board, so that the test circuit board can test the first circuit board and / or the second circuit board.

[0009] Optionally, the orthographic projection of the second connector on a reference plane overlaps with the orthographic projection of the third connector on the reference plane;

[0010] Wherein, the reference plane is a plane parallel to the first circuit board.

[0011] Optionally, the orthographic projection of one of the second connector and the third connector on the reference plane is located within the orthographic projection of the other of the second connector and the third connector on the reference plane.

[0012] Optionally, both the second connector and the third connector are male connectors;

[0013] Alternatively, both the second connector and the third connector are female connectors;

[0014] Alternatively, one of the second connector and the third connector is a male connector, and the other of the second connector and the third connector is a female connector.

[0015] Optionally, the first connector is located at an edge position of the first circuit board.

[0016] Optionally, the second connector and the third connector are located at edge positions of a first end portion of the second circuit board, and a second end portion of the second circuit board is used for electrical connection with the antenna module.

[0017] On the other hand, a test system is provided, including: a test circuit board, and a signal transmission module electrically connected to the test circuit board, where the signal transmission module is any one of the above-mentioned signal transmission modules.

[0018] Optionally, the test circuit board has a fourth connector and a test socket disposed opposite to each other, the fourth connector is used for plugging with the third connector, and the fourth connector and the test socket are respectively located on two opposite surfaces of the test circuit board.

[0019] Optionally, the orthographic projection of the fourth connector on the reference plane does not coincide with the orthographic projection of the test socket on the reference plane;

[0020] Wherein, the reference plane is a plane parallel to the first circuit board.

[0021] On yet another aspect, an electronic device is provided, including: a housing and a signal transmission module located inside the housing, where the signal transmission module is any one of the above-mentioned signal transmission modules.

[0022] The beneficial effects brought by the technical solutions provided in the embodiments of the present application at least include:

[0023] A signal transmission module includes: a first circuit board and a second circuit board. Since the first circuit board can be electrically connected to a radio frequency module in an electronic device, and the second circuit board can be electrically connected to an antenna module in the electronic device. The second circuit board can be connected to the first circuit board through the plugging action of a second connector and a first connector. The second circuit board can also be connected to a test circuit board through a third connector, and electrical connection can be made between the second connector and the third connector in the second circuit board. Therefore, the radio frequency module and / or the antenna module in the electronic device can be tested through the test circuit board. In this way, there is no need to reserve an extra area for soldering test wires in the circuit board, thereby improving the space utilization rate of the circuit board. In addition, the process of testing the antenna module and / or the radio frequency module in the electronic device can be effectively simplified, and thus the testing difficulty of the antenna module and / or the radio frequency module in the electronic device can be reduced. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 It is a schematic structural diagram of a signal transmission module provided by an embodiment of the present application;

[0026] Figure 2 It is an exploded view of a signal transmission module provided by an embodiment of the present application;

[0027] Figure 3 It is a schematic front view of a second circuit board provided by an embodiment of the present application;

[0028] Figure 4 It is a schematic back view of a second circuit board provided by an embodiment of the present application;

[0029] Figure 5 It is a schematic structural diagram of a first circuit board provided by an embodiment of the present application;

[0030] Figure 6 It is a schematic structural diagram of a test system provided by an embodiment of the present application;

[0031] Figure 7 It is an exploded view of a test system provided by an embodiment of the present application;

[0032] Figure 8 It is a schematic front view of a test circuit board provided by an embodiment of the present application;

[0033] Figure 9 This is a schematic diagram of the back structure of a test circuit board provided by an embodiment of the present application. Detailed implementation manners

[0034] To make the objectives, technical solutions and advantages of the present application clearer, the following will further describe in detail the embodiments of the present application with reference to the accompanying drawings.

[0035] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a signal transmission module provided by an embodiment of the present application. Figure 2 This is an exploded schematic diagram of a signal transmission module provided by an embodiment of the present application. Among them, the signal transmission module 000 can be integrated in an electronic device. The signal transmission module 000 can include: a first circuit board 100 and a second circuit board 200. Here, the second circuit board 200 can be made of a modified polyimide material.

[0036] The first circuit board 100 in the signal transmission module 000 can have a first connector 100a, and the first circuit board 100 can be used for electrically connecting with a radio frequency module in the electronic device. In a possible implementation manner, the radio frequency module in the electronic device can be integrated in the first circuit board 100. In another possible implementation manner, the radio frequency module in the electronic device can be integrated in other circuit boards, and this circuit board can be electrically connected with the first circuit board 100 to ensure that the first circuit board 100 can be electrically connected with the radio frequency module. Among them, the radio frequency module in the electronic device can be used for generating radio signals.

[0037] The second circuit board 200 in the signal transmission module 000 can have a second connector 200a and a third connector 200b arranged oppositely. The second connector 200a and the third connector 200b can be respectively located on two oppositely arranged surfaces of the second circuit board 200, that is, the second connector 200a can be located on one surface of the second circuit board 200, and the third connector 200b can be located on the other surface of the second circuit board 200.

[0038] Here, the second connector 200a in the second circuit board 200 can be electrically connected with the third connector 200b, and the second connector 200a can be plugged into the first connector 100a in the first circuit board 100. In this way, through the plugging action of the second connector 200a and the first connector 100a, electrical connection between the first circuit board 100 and the second circuit board 200 can be realized. Among them, the second circuit board 200 can be used for electrically connecting with an antenna module in the electronic device.

[0039] In this case, after the first circuit board 100 is electrically connected to the radio frequency module in the electronic device, the first circuit board 100 can be electrically connected to the second circuit board 200 through the first connector 100a, so that the wireless signal generated in the radio frequency module can be transmitted to the antenna module in the electronic device through the first circuit board 100 and the second circuit board 200 in sequence, enabling the antenna module to radiate wireless signals outward or receive external wireless signals, so as to ensure that the electronic device can have the function of wireless communication.

[0040] Among them, the third connector 200b in the second circuit board 200 can be used to be electrically connected to the test circuit board, so that the test circuit board can test the first circuit board 100 and / or the second circuit board 200.

[0041] In this application, since the first circuit board 100 can be electrically connected to the radio frequency module in the electronic device, and the second circuit board 200 can be electrically connected to the antenna module in the electronic device. And the second circuit board 200 can be connected to the first circuit board 100 through the plugging action of the second connector 200a and the first connector 100a. The second circuit board 200 can also be connected to the test circuit board through the third connector 200b, and the second connector 200a and the third connector 200b in the second circuit board 200 can be electrically connected. Therefore, the radio frequency module and / or the antenna module in the electronic device can be tested through the test circuit board. In this way, there is no need to reserve an extra area for welding test wires in the circuit board, thereby improving the space utilization rate of the circuit board. In addition, the process of testing the antenna module and the radio frequency module in the electronic device can be effectively simplified, and thus the test difficulty of the antenna module and the radio frequency module in the electronic device can be reduced.

[0042] In summary, a signal transmission module provided in an embodiment of this application includes: a first circuit board and a second circuit board. Since the first circuit board can be electrically connected to the radio frequency module in the electronic device, and the second circuit board can be electrically connected to the antenna module in the electronic device. The second circuit board can be connected to the first circuit board through the plugging action of the second connector and the first connector. The second circuit board can also be connected to the test circuit board through the third connector, and the second connector and the third connector in the second circuit board can be electrically connected. Therefore, the radio frequency module and / or the antenna module in the electronic device can be tested through the test circuit board. In this way, there is no need to reserve an extra area for welding test wires in the circuit board, thereby improving the space utilization rate of the circuit board. In addition, the process of testing the antenna module and / or the radio frequency module in the electronic device can be effectively simplified, and thus the test difficulty of the antenna module and / or the radio frequency module in the electronic device can be reduced.

[0043] Exemplarily, a fourth connector that mates with the third connector 200b may be provided on the test circuit board. The third connector 200b may be plugged into the fourth connector so that an electrical connection can be achieved between the test circuit board and the second circuit board 200. Of course, the fourth connector on the test circuit board can also be unplugged from the third connector 200b of the second circuit board 200 so that the test circuit board can be separated from the second circuit board 200.

[0044] It should be noted that when it is necessary to test the first circuit board 100 and / or the second circuit board 200 in the signal transmission module 000, the fourth connector on the test circuit board needs to be plugged into the third connector 200b of the second circuit board 200 so that an electrical connection can be established between the test circuit board and the second circuit board 200, and also an electrical connection can be established between the test circuit board and the first circuit board 100 through the second circuit board 200. After the testing of the first circuit board 100 and / or the second circuit board 200 in the signal transmission module 000 is completed, the fourth connector on the test circuit board can be unplugged from the third connector 200b of the second circuit board 200 so that the test circuit board will no longer affect the normal operation of the signal transmission module 000.

[0045] In the embodiments of the present application, please refer to Figure 2 、 Figure 3 and Figure 4 , Figure 3 which is a schematic diagram of the front structure of a second circuit board provided by the embodiments of the present application, Figure 4 and

[0046] which is a schematic diagram of the back structure of a second circuit board provided by the embodiments of the present application. The orthographic projection of the second connector 200a in the second circuit board 200 on the reference plane may overlap with the orthographic projection of the third connector 200b in the second circuit board 200 on the reference plane. Among them, the reference plane may be a plane parallel to the first circuit board 100.

[0047] In this application, the orthographic projection of one of the second connector 200a and the third connector 200b in the second circuit board 200 on a reference plane may be located within the orthographic projection of the other connector of the second connector 200a and the third connector 200b on the reference plane. In a possible implementation manner, the orthographic projection of the second connector 200a in the second circuit board 200 on the reference plane may be located within the orthographic projection of the third connector 200b on the reference plane. In another possible implementation manner, the orthographic projection of the third connector 200b in the second circuit board 200 on the reference plane may be located within the orthographic projection of the second connector 200a on the reference plane. The embodiments of this application do not limit this.

[0048] In this case, the space occupied by the third connector 200b in the second circuit board 200 can be further reduced, so that the space utilization rate of the second circuit board 200 can be higher.

[0049] Optionally, there are various types of the second connector 200a and the third connector 200b in the second circuit board 200. The embodiments of this application will take the following three implementation manners as examples for illustrative description:

[0050] In the first implementation manner, both the second connector 200a and the third connector 200b in the second circuit board 200 are male seat connectors. In this case, the first connector 100a in the first circuit board 100 that mates with the second connector 200a can be a female seat connector to ensure that the second connector 200a in the second circuit board 200 can be normally plugged into the first connector 100a in the first circuit board 100. Similarly, the fourth connector in the test circuit board that mates with the third connector 200b can be a female seat connector to ensure that the third connector 200b in the second circuit board 200 can be normally plugged into the fourth connector in the test circuit board.

[0051] In the second implementation manner, both the second connector 200a and the third connector 200b in the second circuit board 200 are female seat connectors. In this case, the first connector 100a in the first circuit board 100 that mates with the second connector 200a can be a male seat connector to ensure that the second connector 200a in the second circuit board 200 can be normally plugged into the first connector 100a in the first circuit board 100. Similarly, the fourth connector in the test circuit board that mates with the third connector 200b can be a male seat connector to ensure that the third connector 200b in the second circuit board 200 can be normally plugged into the fourth connector in the test circuit board.

[0052] In the third implementation method, one of the second connector 200a and the third connector 200b in the second circuit board 200 is a male connector, and the other connector of the second connector 200a and the third connector 200b is a female connector.

[0053] When the second connector 200a is a male connector and the third connector is a female connector, the first connector 100a that mates with the second connector 200a in the first circuit board 100 can be a female connector to ensure that the second connector 200a in the second circuit board 200 can be normally plugged into the first connector 100a in the first circuit board 100. The fourth connector that mates with the third connector 200b in the test circuit board can be a male connector to ensure that the third connector 200b in the second circuit board 200 can be normally plugged into the fourth connector in the test circuit board.

[0054] When the second connector 200a is a female connector and the third connector is a male connector, the first connector 100a that mates with the second connector 200a in the first circuit board 100 can be a male connector to ensure that the second connector 200a in the second circuit board 200 can be normally plugged into the first connector 100a in the first circuit board 100. The fourth connector that mates with the third connector 200b in the test circuit board can be a female connector to ensure that the third connector 200b in the second circuit board 200 can be normally plugged into the fourth connector in the test circuit board.

[0055] In this application, please refer to Figure 5 , Figure 5 which is a schematic structural diagram of a first circuit board provided by an embodiment of this application. A first connector 100a may be provided at the edge position of the first circuit board 100. As Figure 2 , Figure 3 and Figure 4 shown, the edge position of the first end of the second circuit board 200 may have a second connector 200a and a third connector 200b, and the second end of the second circuit board 200 may be used for electrical connection with the antenna module.

[0056] In this case, after the second connector 200a provided at the edge position of the first end of the second circuit board 200 is plugged into the first connector 100a provided at the edge position of the first circuit board 100, it can be ensured that the edge position of the first end of the second circuit board 200 is connected to the edge position of the first circuit board 100, so that the whole of the second circuit board 200 does not extend into the first circuit board 100, and further it can be ensured that the second circuit board 200 does not interfere with other electronic components provided inside the first circuit board 100, so as to ensure that the entire signal transmission module 000 can work normally.

[0057] In summary, a signal transmission module provided by an embodiment of the present application includes: a first circuit board and a second circuit board. Since the first circuit board can be electrically connected to a radio frequency module in an electronic device, and the second circuit board can be electrically connected to an antenna module in the electronic device. And the second circuit board can be connected to the first circuit board through the insertion of a second connector and a first connector, and the second circuit board can also be connected to a test circuit board through a third connector, and an electrical connection can be made between the second connector and the third connector in the second circuit board. Therefore, the radio frequency module and / or the antenna module in the electronic device can be tested separately through the test circuit board. In this way, there is no need to reserve an extra area for soldering test lines in the circuit board, thereby improving the space utilization rate of the circuit board. In addition, the process of testing the antenna module and the radio frequency module in the electronic device can be effectively simplified, and thus the test difficulty of the antenna module and the radio frequency module in the electronic device can be reduced.

[0058] An embodiment of the present application also provides a test system. Please refer to Figure 6 , Figure 6 which is a schematic structural diagram of a test system provided by an embodiment of the present application. The test system 001 may include: a test circuit board 002, and a signal transmission module 000 electrically connected to the test circuit board 002, and the signal transmission module 000 is any one of the signal transmission modules in the above embodiments.

[0059] In an embodiment of the present application, please refer to Figure 7 , Figure 8 and Figure 9 , Figure 7 which is an exploded view of a test system provided by an embodiment of the present application, Figure 8 which is a front structural diagram of a test circuit board provided by an embodiment of the present application, Figure 9 which is a back structural diagram of a test circuit board provided by an embodiment of the present application. The test circuit board 002 in the test system 001 may have a fourth connector 002a and a test socket 002b disposed opposite to each other, and the fourth connector 002a and the test socket 002b may be located on two opposite surfaces of the test circuit board 002 respectively, that is, the fourth connector 002a may be located on one surface of the test circuit board 002, and the test socket 002b may be located on the other surface of the test circuit board 002.

[0060] In the present application, the orthographic projection of the fourth connector 002a in the test circuit board 002 on a reference plane may not coincide with the orthographic projection of the test socket 002b on the reference plane. Wherein, the reference plane is a plane parallel to the first circuit board 100.

[0061] Here, the fourth connector 002a in the test circuit board 002 can be plugged into the third connector 200b in the second circuit board 200. In this way, through the plugging action of the fourth connector 002a and the third connector 200b, an electrical connection can be achieved between the test circuit board 002 and the second circuit board 200.

[0062] In this application, after the test circuit board 002 is electrically connected to the second circuit board 200 in the signal transmission module 000, the test socket 002b in the second circuit board 002 can be located on the side of the test circuit board 002 away from the signal transmission module 000 to ensure that the test socket 002b can be normally connected to the external test line. And when the orthographic projection of the fourth connector 002a in the test circuit board 002 on the reference plane does not coincide with the orthographic projection of the test socket 002b on the reference plane, it can also ensure that there is no relevant interference between the test socket 002b and the fourth connector 002a in the test circuit board 002, so as to ensure that the test circuit board 002 can be electrically connected to the second circuit board 200 in the signal transmission module 000 and can also be externally connected to the test line.

[0063] It should be noted that the test socket 002b in the test circuit board 002 can be electrically connected to the test device through an external test line. After plugging the fourth connector 002a on the test circuit board 002 into the third connector 200b of the second circuit board 200 to make the test circuit board electrically connected to the second circuit board 200 and electrically connected to the first circuit board 100 through the second circuit board 200, the test device can be externally connected through the test socket 002b in the test circuit board 002 to test the first circuit board 100 and / or the second circuit board 200 in the signal transmission module 000. For this reason, there is no need to reserve an extra area for soldering the test line in the circuit board, thereby improving the space utilization rate of the circuit board. In addition, the process of separately testing the antenna module and / or the radio frequency module in the electronic device can be effectively simplified, and thus the test difficulty of the antenna module and the radio frequency module in the electronic device can be reduced.

[0064] In the embodiment of this application, it can be achieved through Figure 6 the shown test system to test the radio frequency module and the antenna module in the electronic device.

[0065] Exemplarily, during the separate testing of the radio frequency module and the antenna module in the electronic device, first, the staff can fix the second circuit board 200. Then, the staff can plug the fourth connector 002a on the test circuit board 002 into the third connector 200b on the second circuit board 200. After that, the staff can electrically connect the test socket 002b on the test circuit board 002 to the test equipment through an external test line to separately test the radio frequency module and / or the antenna module in the electronic device. Finally, after the testing of the radio frequency module and / or the antenna module in the electronic device is completed, the staff can unplug the test circuit board 002 from the second circuit board 200 so that the test circuit board will no longer affect the normal operation of the signal transmission module 000.

[0066] The embodiment of the present application also provides an electronic device, which can be: a mobile phone, a tablet computer, a television, an advertising machine, a display screen, a digital photo frame, a vehicle-mounted terminal, or any product or component with a display function. The electronic device may include: a housing and a signal transmission module located inside the housing. The signal transmission module is any one of the above-mentioned signal transmission modules. The first circuit board in the signal transmission module can be electrically connected to the radio frequency module in the electronic device, and the second circuit board in the signal transmission module can be electrically connected to the antenna module in the electronic device.

[0067] In the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. The term "plurality" means two or more, unless otherwise clearly defined.

[0068] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included within the protection scope of the present application.

Claims

1. A signal transmission module, characterized in that: include: A first circuit board (100) and a second circuit board (200); The first circuit board (100) has a first connector (100a), and the first circuit board (100) is used to be electrically connected to a radio frequency module in an electronic device; The second circuit board (200) has a second connector (200a) and a third connector (200b) which are arranged opposite to each other, the second connector (200a) and the third connector (200b) are respectively located on two opposite surfaces of the second circuit board (200), and the second connector (200a) and the third connector (200b) are electrically connected, the second connector (200a) is plugged into the first connector (100a), and the second circuit board (200) is used to be electrically connected to an antenna module in the electronic device; The third connector (200b) is used to be electrically connected to a test circuit board (002), so that the test circuit board (002) can test the first circuit board (100) and / or the second circuit board (200).

2. The signal transmission module according to claim 1, characterized in that: The orthographic projection of the second connector (200a) on the reference plane overlaps with the orthographic projection of the third connector (200b) on the reference plane; Wherein, the reference plane is a plane parallel to the first circuit board (100).

3. The signal transmission module according to claim 2, characterized in that: The orthographic projection of one of the second connector (200a) and the third connector (200b) on the reference plane is located within the orthographic projection of the other of the second connector (200a) and the third connector (200b) on the reference plane.

4. The signal transmission module according to any one of claims 1 to 3, characterized in that: The second connector (200a) and the third connector (200b) are both male connectors; Alternatively, the second connector (200a) and the third connector (200b) are both female connectors; Alternatively, one of the second connector (200a) and the third connector (200b) is a male connector, and the other of the second connector (200a) and the third connector (200b) is a female connector.

5. The signal transmission module according to any one of claims 1 to 3, characterized in that: The first connector (100a) is provided at an edge of the first circuit board (100).

6. The signal transmission module according to claim 5, characterized in that: The second connector (200a) and the third connector (200b) are provided at the edge of the first end of the second circuit board (200), and the second end of the second circuit board (200) is used for being electrically connected to the antenna module.

7. A testing system, characterized in that: include: A test circuit board (002), and a signal transmission module electrically connected to the test circuit board (002), wherein the signal transmission module is the signal transmission module according to any one of claims 1 to 6.

8. The test system according to claim 7, characterized in that: The test circuit board (002) has a fourth connector (002a) and a test socket (002b) arranged opposite to each other, the fourth connector (002a) is used for plugging with the third connector (200b), and the fourth connector (002a) and the test socket (002b) are respectively located on two opposite surfaces of the test circuit board (002).

9. The test system according to claim 8, characterized in that: The orthographic projection of the fourth connector (002a) on the reference plane does not overlap with the orthographic projection of the test socket (002b) on the reference plane; Wherein, the reference plane is a plane parallel to the first circuit board (100).

10. An electronic device, comprising: A shell and a signal transmission module located in the shell, wherein the signal transmission module is the signal transmission module according to any one of claims 1 to 6.

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