Optical sensor plate

Abstract

The utility model relates to the technical field of PCBs, in particular to an optical sensor board. The window is arranged on the optical sensor plate, the temperature measuring device is embedded in the window, and the temperature sensing surface of the temperature measuring device is positioned on the cold end surface of the optical sensor plate, so that the temperature measuring device and the optical sensor plate are combined, the cold end area is not occupied by the temperature measuring device, and the temperature of the cold end can be effectively monitored by the temperature sensing surface; therefore, the defect that the difference between the traditional measured temperature and the actual refrigeration temperature of the cold end face is large is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB, in particular to an optical sensor board. Background Art

[0002] In the field of imaging, image quality is a very core indicator, especially in applications that require low-light performance, wide dynamic range, and high fidelity. In order to improve the quality of the picture, we need to reduce the dark current, hot pixels, and dark noise of the optical sensor. Therefore, the environment in which the optical sensor is located must be cooled. The cooling depth is proportional to the performance of the optical sensor. For cooled imaging, there is a cooling hot end and a cold end for the optical sensor. In order to maximize the cooling area, components are generally placed on the hot end of the sensor. Therefore, the measured temperature is very different from the actual cooling temperature of the cold end. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an optical sensor plate, which can overcome the defect that the traditional measured temperature is very different from the actual cold end surface refrigeration temperature.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] An optical sensor board is provided with a window, a temperature measuring device is embedded in the window and the temperature sensing surface of the temperature measuring device is located at the cold end surface of the optical sensor board.

[0006] Furthermore, the temperature measuring device is integrated on a circuit board and protrudes from the circuit board, and the back of the circuit board is attached to the optical sensor board.

[0007] Furthermore, the circuit board is provided with a back sticker welding point, and the edge where the window is located is provided with a welding point for welding with the back sticker welding point.

[0008] Furthermore, the circuit board is rectangular in shape, and the number of the back-mounted soldering points is two groups, which are respectively located at the two long sides or two short sides of the rectangle corresponding to the circuit board.

[0009] Furthermore, the shape of the window is compatible with the shape of the temperature measuring device.

[0010] Furthermore, there is a gap between the temperature measuring device and the window.

[0011] Furthermore, the gap is 0.5 mm.

[0012] Furthermore, the height of the temperature measuring device protruding from the circuit board is not higher than the thickness of the optical sensor board.

[0013] Further, the window is located at the center of the optical sensor board.

[0014] Furthermore, the size of the circuit board is larger than the size of the window by more than 1 mm so as to completely cover the window.

[0015] The beneficial effects of the utility model are:

[0016] The utility model provides an optical sensor board, in which a window is opened on the optical sensor board, a temperature measuring device is embedded in the window, and the temperature sensing surface of the temperature measuring device is located on the cold end surface of the optical sensor board, so as to realize the combination of the two, thereby realizing that the temperature measuring device does not occupy the cold end area, and the temperature sensing surface can effectively monitor the cold end temperature, thereby overcoming the defect that the traditional measured temperature is very different from the actual cold end surface refrigeration temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of one side of an optical sensor board of the utility model;

[0018] Figure 2 It is a structural schematic diagram of another side of an optical sensor board of the utility model;

[0019] Description of labels:

[0020] 1. Temperature measuring device; 2. Circuit board; 3. Optical sensor board; 4. Window; 31. Cold end surface. DETAILED DESCRIPTION

[0021] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0022] Please refer to Figure 1 as well as Figure 2 The utility model provides an optical sensor board, wherein a window is provided on the optical sensor board, a temperature measuring device is embedded in the window, and a temperature sensing surface of the temperature measuring device is located at a cold end surface of the optical sensor board.

[0023] From the above description, it can be seen that the beneficial effects of the utility model are:

[0024] The utility model provides an optical sensor board, in which a window is opened on the optical sensor board, a temperature measuring device is embedded in the window, and the temperature sensing surface of the temperature measuring device is located on the cold end surface of the optical sensor board, so as to realize the combination of the two, thereby realizing that the temperature measuring device does not occupy the cold end area, and the temperature sensing surface can effectively monitor the cold end temperature, thereby overcoming the defect that the traditional measured temperature is very different from the actual cold end surface refrigeration temperature.

[0025] Furthermore, the temperature measuring device is integrated on a circuit board and protrudes from the circuit board, and the back of the circuit board is attached to the optical sensor board.

[0026] It can be seen from the above description that, through the above structure, the temperature measuring device can be embedded in the window.

[0027] Furthermore, the circuit board is provided with a back sticker welding point, and the edge where the window is located is provided with a welding point for welding with the back sticker welding point.

[0028] It can be seen from the above description that the back sticker fixation of the circuit board and the optical sensor board is achieved through the above structure.

[0029] Furthermore, the circuit board is rectangular in shape, and the number of the back-mounted soldering points is two groups, which are respectively located at the two long sides or two short sides of the rectangle corresponding to the circuit board.

[0030] It can be seen from the above description that by arranging the above back-mounted soldering points, the circuit board and the optical sensor board are effectively combined, and the number of soldering and the difficulty of soldering are greatly reduced while meeting the connection strength.

[0031] Furthermore, the shape of the window is adapted to the shape of the temperature measuring device.

[0032] Furthermore, there is a gap between the temperature measuring device and the window.

[0033] Furthermore, the gap is 0.5 mm.

[0034] It can be seen from the above description that the above gap can meet the assembly requirements and reduce the difficulty of assembly.

[0035] Furthermore, the height of the temperature measuring device protruding from the circuit board is not higher than the thickness of the optical sensor board.

[0036] It can be seen from the above description that the above structural design meets the technical requirements for effectively monitoring the cold end temperature.

[0037] Further, the window is located at the center of the optical sensor board.

[0038] It can be seen from the above description that the temperature measurement is more balanced through the above structural design.

[0039] Furthermore, the size of the circuit board is larger than the size of the window by more than 1 mm so as to completely cover the window.

[0040] From the above description, it can be seen that the board can play a role in heat insulation after the window is opened, that is, after the boards are pasted together, they can isolate the cold end and the hot end to prevent heat leakage caused by air gaps.

[0041] Please refer to Figure 1 to Figure 2 , Embodiment 1 of the present utility model is:

[0042] The utility model provides an optical sensor board, wherein a temperature measuring device 1 is integrated on a circuit board and protrudes from the circuit board 2, the circuit board 2 is provided with a back-mounted welding point, and a window 4 adapted to the temperature measuring device is provided on the optical sensor board 3. Specifically, the window is located at the center of the optical sensor board. A welding point for welding with the back-mounted welding point is provided at the edge of the window. When the back of the circuit board is mounted on the optical sensor board, the temperature measuring device is embedded in the window so that the temperature sensing surface of the temperature measuring device is located at the cold end surface 31 of the optical sensor board 3.

[0043] The size of the circuit board is more than 1mm larger than the size of the window to completely cover the window, which can ensure the heat insulation problem after the board window is opened. After the board is attached, it can isolate the cold end and the hot end to prevent heat leakage caused by air gaps. When welding, first completely attach the circuit board to the window, use the corresponding tooling to fix it, and after ensuring that there is no gap, perform welding and fixation of the pins.

[0044] The circuit board is rectangular, and the number of the back-mounted soldering points is two groups, and they are respectively arranged at the two long sides or two short sides of the corresponding rectangle of the circuit board. Through the arrangement of the back-mounted soldering points, the circuit board and the optical sensor board are effectively combined, and the number of soldering and the difficulty of soldering are greatly reduced while meeting the connection strength.

[0045] There is a gap between the temperature measuring device and the window, and the gap is 0.5 mm.

[0046] The height of the temperature measuring device protruding from the circuit board is not higher than the thickness of the optical sensor board. Preferably, the height of the temperature measuring device protruding from the circuit board is equal to the thickness of the optical sensor board.

[0047] In summary, the utility model provides an optical sensor board, which has a window on the optical sensor board, a temperature measuring device embedded in the window, and a temperature sensing surface of the temperature measuring device located at the cold end surface of the optical sensor board, thereby realizing a combination of the two, so that the temperature measuring device does not occupy the cold end area, and the temperature sensing surface can effectively monitor the cold end temperature, thereby overcoming the defect that the traditional measured temperature and the actual cold end surface cooling temperature are very different.

[0048] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. An optical sensor board, characterized in that: A window is provided on the optical sensor board, a temperature measuring device is embedded in the window, and the temperature sensing surface of the temperature measuring device is located at the cold end surface of the optical sensor board; The temperature measuring device is integrated on a circuit board and protrudes from the circuit board, and the back of the circuit board is attached to the optical sensor board.

2. An optical sensor board according to claim 1, characterized in that: The circuit board is provided with a back sticker welding point, and the edge where the window is located is provided with a welding point for welding with the back sticker welding point.

3. An optical sensor board according to claim 2, characterized in that: The circuit board is rectangular in shape, and the number of the back-mounted soldering points is two groups, which are respectively located at the two long sides or two short sides of the rectangle corresponding to the circuit board.

4. The optical sensor board according to claim 1, characterized in that: The shape of the window is adapted to the shape of the temperature measuring device.

5. An optical sensor board according to claim 4, characterized in that: There is a gap between the temperature measuring device and the window.

6. An optical sensor board according to claim 5, characterized in that: The gap is 0.5 mm.

7. The optical sensor board according to claim 1, characterized in that: The height of the temperature measuring device protruding from the circuit board is not less than the thickness of the optical sensor board.

8. The optical sensor board according to claim 1, characterized in that: The window is located at the center of the optical sensor plate.

9. The optical sensor board according to claim 1, characterized in that: The size of the circuit board is larger than the size of the window by more than 1 mm so as to completely cover the window.

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