Infrared sensor convenient to maintain

Abstract

The utility model relates to the technical field of infrared sensors, in particular to an infrared sensor convenient to maintain, which comprises a fixing plate, a groove is arranged in the middle of the upper end of the fixing plate, a boss is coaxially arranged at the lower end of the groove, an aluminum substrate is fixedly mounted at the upper end of the boss, and a circuit element is fixedly mounted at the upper end of the aluminum substrate. Three supporting columns are annularly arranged at the upper end of the boss, a thermoelectric element is fixedly installed at the upper ends of the three supporting columns jointly, a pyroelectric detection element is fixedly installed at the upper end of the thermoelectric element, a sealing cover is detachably installed at the upper end of the fixing plate, and an optical filter is fixedly installed on the upper inner wall of the sealing cover. According to the infrared sensor convenient to maintain provided by the utility model, the sensor component is covered by the sealing cover, so that the infrared sensor is convenient to use and is protected, the sealing cover can be quickly taken down, the later maintenance and overhaul work of the sensor component is facilitated, and the use effect of the infrared sensor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of infrared sensors, in particular to an infrared sensor which is convenient to maintain. Background Art

[0002] With the rapid development of science and technology, infrared sensors, as an important part of modern sensing technology, play an indispensable role in many fields such as industrial automation, smart home, security monitoring, medical health, etc. Infrared sensors sense changes in the surrounding environment by detecting infrared radiation emitted or reflected by objects, realizing non-contact monitoring and control functions.

[0003] However, the existing infrared sensor is an integrated infrared sensor with a closed structure design. Although it can protect the internal components from interference from the external environment to a certain extent, this design also brings inconvenience in maintenance. When the sensor performance deteriorates due to long-term operation or needs regular calibration, users often need professional tools and complex steps to open the sensor casing, which not only increases maintenance costs, but also prolongs equipment downtime, affecting the overall efficiency and reliability of the system. Therefore, it is urgent to design an infrared sensor that is easy to maintain to solve the above problems. Utility Model Content

[0004] The main purpose of the utility model is to provide an infrared sensor that is easy to maintain and can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An infrared sensor that is easy to maintain, includes a fixing plate, a groove is provided in the middle of the upper end of the fixing plate, a boss is provided coaxially with the lower end of the groove, an aluminum substrate is fixedly installed on the upper end of the boss, the upper end of the aluminum substrate is fixedly installed on a circuit element, three supporting columns are provided in a ring shape on the upper end of the boss, a thermoelectric element is fixedly installed on the upper ends of the three supporting columns, a pyroelectric detection element is fixedly installed on the upper end of the thermoelectric element, a sealing cover is detachably installed on the upper end of the fixing plate, and an optical filter is fixedly installed on the upper inner wall of the sealing cover.

[0007] Preferably, the lower end of the circuit element is fixedly connected to two pins, and the lower ends of the two pins sequentially penetrate the lower ends of the aluminum substrate and the fixing plate and extend to the bottom of the fixing plate.

[0008] Preferably, slide grooves communicating with the interior of the groove are provided on both left and right sides of the fixed plate, positioning pieces are slidably connected in the two slide grooves, and guide grooves for cooperating with the positioning pieces are opened on the upper groove walls of the two slide grooves, and the sealing cover is detachably installed on the fixed plate through the two positioning pieces.

[0009] Preferably, the positioning member includes a positioning pin, which is slidably connected in a slide groove. A guide rod is integrally formed on the upper portion of the outer surface of the positioning pin, and the guide rod is slidably connected to the guide groove. A spring is fixedly installed on one side of the two positioning pins away from the opposite ends, and one end of the spring away from the positioning pin is fixedly connected to the inner wall of the slide groove.

[0010] Preferably, a clamping ring is fixedly connected to the lower groove wall of the groove, and the clamping ring is coaxially arranged with the boss and located on the outer side of the boss.

[0011] Preferably, both left and right sides of the outer surface of the sealing cover are provided with positioning holes for use with positioning pins, and the lower end of the sealing cover is provided with a clamping groove for use with a clamping ring.

[0012] Preferably, an optical filter is fixedly mounted on the lower inner wall of the enclosure by bolts.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. Preliminarily fix the bottom of the cover in the groove through the card slot and the card ring to achieve the effect of preliminary positioning, then loosen the guide rod, use the elastic force of the slide slot to push the positioning pin out of the slide slot and clamp it in the corresponding positioning hole to further fix the cover, improve the stability of the connection between the cover and the fixed plate, avoid dislocation of the infrared sensor installation, and cover the sensor components inside through the cover, which is convenient for use and protects it.

[0015] 2. When it is necessary to disassemble the cover to maintain the sensor components inside the cover, pull the guide rod to separate the positioning pin from the positioning hole, pull the cover upward, and remove the cover by separating the card slot and the snap ring, thereby exposing the circuit components, thermoelectric elements, pyroelectric detection elements and optical filters, which is convenient for the later maintenance and repair of the sensor components and improves the use effect of the infrared sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an infrared sensor that is easy to maintain in the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of an infrared sensor that is easy to maintain in the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of a fixing plate of an infrared sensor that is easy to maintain according to the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the internal structure of a sealing cover of an infrared sensor which is convenient for maintenance.

[0020] In the figure: 1, fixing plate; 2, groove; 3, boss; 4, retaining ring; 5, aluminum substrate; 6, circuit element; 7, supporting column; 8, thermoelectric element; 9, pyroelectric detection element; 10, sealing cover; 11, optical filter; 12, pin; 13, positioning piece; 14, slide groove; 15, guide groove; 101, positioning hole; 102, retaining groove; 131, positioning pin; 132, guide rod; 133, spring. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1-4 , the utility model provides a technical solution:

[0025] An infrared sensor which is convenient for maintenance comprises a fixing plate 1, a groove 2 is arranged in the middle of the upper end of the fixing plate 1, a boss 3 is arranged coaxially with the lower end of the groove 2, an aluminum substrate 5 is fixedly mounted on the upper end of the boss 3, the upper end of the aluminum substrate 5 is fixedly mounted on a circuit element 6, three supporting columns 7 are arranged in a ring shape on the upper end of the boss 3, a thermoelectric element 8 is fixedly mounted on the upper ends of the three supporting columns 7, a pyroelectric detection element 9 is fixedly mounted on the upper end of the thermoelectric element 8, a sealing cover 10 is detachably mounted on the upper end of the fixing plate 1, an optical filter 11 is fixedly mounted on the upper inner wall of the sealing cover 10, the circuit element 6 and the thermoelectric element 8 inside the device work, and infrared monitoring is convenient through the arrangement of the pyroelectric detection element 9 and the optical filter 11.

[0026] In this embodiment, the lower end of the circuit element 6 is fixedly connected to two pins 12, and the lower ends of the two pins 12 pass through the lower ends of the aluminum substrate 5 and the fixed plate 1 in sequence and extend to the bottom of the fixed plate 1; the lower groove wall of the groove 2 is fixedly connected to a retaining ring 4, and the retaining ring 4 is coaxially arranged with the boss 3 and is located on the outside of the boss 3; the left and right sides of the outer surface of the cover 10 are provided with positioning holes 101 used in conjunction with the positioning pin 131, and the lower end of the cover 10 is provided with a clamping groove 102 used in conjunction with the clamping ring 4, and the bottom of the cover 10 is preliminarily fixed in the groove 2 by clamping the clamping groove 102 with the clamping ring 4, which has a preliminary positioning effect; the lower inner wall of the cover 10 is fixed with an optical filter 11 by bolts.

[0027] In this embodiment, the left and right sides of the fixed plate 1 are provided with slide grooves 14 that are connected to the inside of the groove 2, and the two slide grooves 14 are slidably connected with the positioning members 13. The upper groove walls of the two slide grooves 14 are provided with guide grooves 15 used in conjunction with the positioning members 13. The closure 10 is detachably installed with the fixed plate 1 through the two positioning members 13; the positioning member 13 includes a positioning pin 131, which is slidably connected in the slide groove 14, and a guide rod 132 is integrally formed on the upper part of the outer surface of the positioning pin 131, and the guide rod 132 is slidably connected to the guide groove 15, and the two positioning pins 131 are fixed on the side away from the opposite end. A spring 133 is installed, and one end of the spring 133 away from the positioning pin 131 is fixedly connected to the inner wall of the slide groove 14; when the cover 10 needs to be disassembled to maintain the sensor components inside the cover 10, the guide rod 132 is pulled to separate the positioning pin 131 from the positioning hole 101, and the cover 10 is pulled upward, and the cover 10 can be removed by separating the clamping groove 102 from the clamping ring 4, thereby exposing the circuit element 6, the thermoelectric element 8, the pyroelectric detection element 9 and the optical filter 11, which is convenient for the later maintenance and repair of the sensor components and improves the use effect of the infrared sensor.

[0028] It should be noted that the utility model is an infrared sensor that is easy to maintain. During use, when in use, the guide rods 132 are pulled to both sides, and the guide rods 132 slide in the guide grooves 15 to collect the positioning pins 131 into the slide grooves 14, and then the cover 10 is placed in the groove 2, and the bottom of the cover 10 is initially fixed in the groove 2 by the clamping groove 102 and the clamping ring 4, and then the guide rods 132 are loosened, and the positioning pins 131 are pushed out of the slide grooves 14 by the elastic force of the slide grooves 14 and clamped in the corresponding positioning holes 101, so that the cover 10 is further fixed, and the connection between the cover 10 and the fixing plate 1 is improved. In order to ensure the stability of the connection, the sensor components are covered inside by the sealing cover 10, which is convenient for use and protects them. When the sealing cover 10 needs to be disassembled to maintain the sensor components inside the sealing cover 10, the guide rod 132 is pulled to separate the positioning pin 131 from the positioning hole 101, and the sealing cover 10 is pulled upward. The sealing cover 10 can be removed by separating the card slot 102 from the retaining ring 4, thereby exposing the circuit elements 6, the thermoelectric elements 8, the pyroelectric detection elements 9 and the optical filter 11, which is convenient for the later maintenance and repair of the sensor components and improves the use effect of the infrared sensor.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An infrared sensor that is easy to maintain, comprising a fixing plate (1), characterized in that: A groove (2) is provided in the middle of the upper end of the fixing plate (1), a boss (3) is coaxially provided at the lower end of the groove (2), an aluminum substrate (5) is fixedly mounted on the upper end of the boss (3), the upper end of the aluminum substrate (5) is fixedly mounted on the circuit element (6), three supporting columns (7) are provided in an annular shape at the upper end of the boss (3), a thermoelectric element (8) is fixedly mounted on the upper ends of the three supporting columns (7), a pyroelectric detection element (9) is fixedly mounted on the upper end of the thermoelectric element (8), a sealing cover (10) is detachably mounted on the upper end of the fixing plate (1), an optical filter (11) is fixedly mounted on the upper inner wall of the sealing cover (10); The lower end of the circuit element (6) is fixedly connected to two pins (12), and the lower ends of the two pins (12) sequentially penetrate the lower ends of the aluminum substrate (5) and the fixing plate (1) and extend to the bottom of the fixing plate (1).

2. The infrared sensor that is easy to maintain according to claim 1, characterized in that: The fixed plate (1) is provided with a slide groove (14) on both left and right sides thereof, which is communicated with the inside of the groove (2); a positioning piece (13) is slidably connected in the two slide grooves (14); the upper groove walls of the two slide grooves (14) are provided with a guide groove (15) used in conjunction with the positioning piece (13); the sealing cover (10) is detachably mounted on the fixed plate (1) via the two positioning pieces (13).

3. The infrared sensor that is easy to maintain according to claim 2 is characterized in that: The positioning member (13) comprises a positioning pin (131), the positioning pin (131) is slidably connected in the slide groove (14), a guide rod (132) is integrally formed on the upper portion of the outer surface of the positioning pin (131), and the guide rod (132) is slidably connected to the guide groove (15), and a spring (133) is fixedly installed on one side of the two positioning pins (131) away from the opposite end, and one end of the spring (133) away from the positioning pin (131) is fixedly connected to the inner wall of the slide groove (14).

4. The infrared sensor that is easy to maintain according to claim 1 is characterized in that: A clamping ring (4) is fixedly connected to the lower groove wall of the groove (2); the clamping ring (4) is coaxially arranged with the boss (3) and is located outside the boss (3).

5. The infrared sensor that is easy to maintain according to claim 1, characterized in that: Positioning holes (101) for use with positioning pins (131) are provided on both left and right sides of the outer surface of the sealing cover (10), and a clamping groove (102) for use with a clamping ring (4) is provided at the lower end of the sealing cover (10).

6. The infrared sensor that is easy to maintain according to claim 1, characterized in that: An optical filter (11) is fixedly mounted on the lower inner wall of the sealing cover (10) by means of bolts.

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