Novel thermopile sensor

Abstract

The utility model discloses a novel thermopile sensor, which relates to the field of sensors and comprises a metal nickel-plated tube cap, a metal nickel-plated tube seat, a chip and a PCB (printed circuit board), an optical filter is arranged in a through hole in the top of the metal nickel-plated tube cap, a copper mesh layer is arranged in the surface of the PCB, and the PCB is attached to the top of the metal nickel-plated tube seat through epoxy glue; according to the utility model, the general metal nickel-plated tube cap and the specially designed PCB are adopted, the original connection mode is improved, the shielding net is arranged in the PCB, and silver colloid is used to enhance the conduction of the lead, so that the connection mode is more reliable, the production is convenient, the cost is reduced, and the production efficiency is improved. And the metal nickel-plated tube seat and the alloy welding wire are adopted, so that the production cost is reduced in conclusion.

Description

Technical Field

[0001] The utility model belongs to the field of sensors, and in particular relates to a novel thermopile sensor. Background Art

[0002] A thermopile sensor is a sensor that converts temperature differences into voltage signals. It uses a common gold-plated metal base, chip, metal cap, and lens to generate signals for analog processing chips.

[0003] It has the following disadvantages:

[0004] 1. The general TO base needs to be gold-plated;

[0005] 2. Strict requirements on the appearance and lead process of the tube socket;

[0006] 3. The tube socket is gold-plated and the welding wire is gold-wire, which is more expensive;

[0007] 4. The production process is complex; welding is required, and the thermal conductivity and shielding are poor.

[0008] Therefore, we propose a new thermopile sensor to solve the above problems. Utility Model Content

[0009] In view of the high material cost of current production process, the problems of poor heat conduction and incomplete shielding during product use, the utility model provides a new type of thermopile sensor.

[0010] The solution adopted by the utility model to solve the technical problem is: a new type of thermopile sensor, including a metal nickel-plated tube cap, a metal nickel-plated tube base, a chip and a PCB board, a filter is set in the top through hole of the metal nickel-plated tube cap,

[0011] A copper mesh layer is built into the surface of the PCB board, and the PCB board is attached to the top of the nickel-plated metal tube holder by epoxy glue;

[0012] The chip is located in the reserved slot of the PCB board and is placed in the center of the metal nickel-plated tube holder.

[0013] Preferably, a mixed adhesive layer is provided between the optical filter and the through hole to mount the optical filter on the tube housing.

[0014] Preferably, the metal nickel-plated tube seat and the leads of the PCB are spot-coated with silver glue.

[0015] Preferably, alloy wire is used to bond the chip to the nickel-plated metal socket.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The utility model adopts a universal metal nickel-plated tube cap and a specially designed PCB board. By improving the original connection method, a shielding net is built into the PCB board and silver glue is used to enhance the lead conduction, so that the connection method is more reliable and easy to produce. The thermal conductivity and shielding properties of the product are significantly improved. The metal nickel-plated tube seat and alloy welding wire are used, which reduces the production cost.

[0018] 2. The utility model improves the conductivity by building a shielding net into the PCB board and a conductor board with a special circuit layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model from above.

[0021] In the figure: 1 metal nickel-plated tube cap, 2 filter, 3 metal nickel-plated tube base, 4 PCB board, 41 copper mesh layer, 5 chip. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] See also Figure 1-2 , the utility model provides a new technical solution for thermopile sensor:

[0024] Example 1:

[0025] according to Figure 1 and Figure 2 As shown, it includes a metal nickel-plated tube cap 1, a metal nickel-plated tube base 3, a chip 5 and a PCB board 4. A filter 2 is set in the top through hole of the metal nickel-plated tube cap 1, and a mixed adhesive layer is set between the filter 2 and the through hole. The filter 2 is mounted on the tube shell to perform sealing and shielding. In this embodiment, the mixed adhesive layer is made of graphite conductive adhesive and cold adhesive mixed in a special ratio.

[0026] A copper mesh layer 41 is built into the surface of the PCB board 4. The conductivity is improved by building a shielding mesh and a wire board with a special circuit layout into the PCB board 4. The PCB board 4 is attached to the top of the metal nickel-plated tube holder 3 using epoxy glue. The nickel-plated tube holder 3 and the PCB leads are spot-coated with silver glue to improve the product's thermal conductivity and shielding performance.

[0027] The chip 5 is located in the reserved groove of the PCB board 4 and is placed in the center of the metal nickel-plated tube holder 3. Alloy wire is used to weld the chip 5 and the metal nickel-plated tube holder 3 to ensure conduction between the components.

[0028] The utility model adopts a universal metal nickel-plated tube cap 1 and a specially designed PCB board 4. By improving the original connection method, a shielding net is built into the PCB board 4 and silver glue is used to enhance the lead conduction, the connection method is made more reliable and easy to produce. The thermal conductivity and shielding properties of the product are significantly improved. The metal nickel-plated tube base 3 and alloy welding wire are used, which reduces the production cost.

Claims

1. A novel thermopile sensor, comprising a metal nickel-plated tube cap, a metal nickel-plated tube base, a chip and a PCB board, wherein a filter is arranged in the top through hole of the metal nickel-plated tube cap, and characterized in that: A copper mesh layer is built into the surface of the PCB board, and the PCB board is mounted on the top of the metal nickel-plated tube holder by epoxy adhesive; The chip is located in the reserved slot of the PCB board and is placed in the center of the metal nickel-plated tube holder.

2. The novel thermopile sensor according to claim 1, characterized in that: A mixed adhesive layer is arranged between the optical filter and the through hole, and the optical filter is mounted on the tube shell.

3. The novel thermopile sensor according to claim 1, characterized in that: The metal nickel-plated tube seat and the lead of the PCB are spot-coated with silver glue.

4. The novel thermopile sensor according to claim 1, characterized in that: Alloy wire is used to weld the chip to the nickel-plated metal socket.

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