Three-dimensional thermopile

Abstract

The utility model discloses a three-dimensional thermopile, which comprises a cylinder body and a galvanic couple array arranged along the inner wall of the cylinder body, the galvanic couple array comprises a plurality of thermocouples connected in series, the first end of the galvanic couple array is connected with the cylinder body, and the second end of the galvanic couple array is provided with an outgoing line extending out of the bottom of the cylinder body. Compared with a three-dimensional thermopile formed by connecting annular heat flow sensors in series, the three-dimensional thermopile provided by the utility model has the advantages that the structure is simpler, the manufactured sensors are easy to maintain consistency, the operation space during manufacturing and the available space of the thermocouples are larger, the manufacturing is more convenient, and the number of the thermocouples capable of being accommodated is larger.

Description

Technical Field

[0001] This utility model relates to a three-dimensional thermopile. Background Technology

[0002] Heat change is a macroscopic phenomenon present in almost all reactions. Therefore, sensing and measuring heat changes to analyze physical and chemical processes is a common method in scientific research. Thermal analysis and calorimetry instruments can be used to measure heat changes during material transformation processes and are widely used in materials science, chemical process safety control, and other fields, playing an indispensable role. The sensor is the core component of thermal analysis and calorimetry instruments, determining the instrument's measurement accuracy and application range. Therefore, designing a simple, low-cost, and high-precision calorimetric sensor is crucial.

[0003] A three-dimensional thermopile is a thermopile composed of multiple pairs of thermocouples that form a spatial array, allowing for the measurement of heat changes during sample transformations from multiple angles. Therefore, compared to single-point or planar sensors, a three-dimensional thermopile has higher calorimetric efficiency.

[0004] Patent CN1352381A discloses a ring-shaped thermopile temperature sensor, which includes a thermopile composed of thermocouples. The thermopile has an insulated large ring and a small ring. The large ring and the small ring each have the same number of uniformly distributed grooves. The thermocouples are welded into a ring-shaped thermopile. The ring-shaped thermopile is fixed in the grooves of the large and small rings with insulating material to form a thermopile unit. Several thermopile units are stacked and connected in series to form a ring-shaped thermopile temperature sensor.

[0005] Existing technologies involve complex manufacturing processes and suffer from poor consistency. Space constraints also limit the number of thermocouples that can be used in each layer of the annular structure. Utility Model Content

[0006] The main objective of this invention is to provide a three-dimensional thermopile, which is designed to be simple in structure and easy to manufacture.

[0007] To achieve the above objectives, the present invention proposes a three-dimensional thermopile comprising a cylindrical body and an array of thermocouples placed along the inner wall of the cylindrical body. The thermocouple array comprises multiple thermocouples connected in series. The first end of the thermocouple array is connected to the cylindrical body, and the second end of the thermocouple array has a lead wire extending from the bottom of the cylindrical body.

[0008] In one embodiment, the thermocouple array is arranged axially along the inner wall of the cylinder.

[0009] In one embodiment, the thermocouple array has an angle of inclination with the axial direction of the cylinder.

[0010] In one embodiment, the thermocouple array is arranged in a ring on the inner wall of the cylinder, and the two ends of the thermocouple array are connected by an insulating material.

[0011] In one embodiment, the thermocouple array is connected to the cylinder via an insulating support or a non-insulating support coated with an insulating layer.

[0012] In one embodiment, the thermocouple array is connected to the cylinder by a snap-fit ​​connection.

[0013] In one embodiment, an insulating film is wrapped around the connection point between the thermocouple array and the cylinder.

[0014] In one embodiment, the plurality of thermocouples are connected by welding and / or snap-fit ​​connections.

[0015] In one embodiment, an insulating sleeve is fitted onto the lead-out line.

[0016] In this invention, the three-dimensional thermopile includes a cylindrical body and an array of thermocouples placed along the inner wall of the cylindrical body. The thermocouple array includes multiple thermocouples connected in series. The first end of the thermocouple array is connected to the cylindrical body, and the second end of the thermocouple array has a lead wire extending from the bottom of the cylindrical body. Compared with a three-dimensional thermopile formed by connecting annular heat flux sensors in series, the three-dimensional thermopile provided in this application has a simpler structure, the sensors are easier to manufacture with consistent performance, and the operating space and usable space for thermocouples are larger during manufacturing, making it more convenient to manufacture and accommodating a higher number of thermocouples. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a three-dimensional thermopile according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the electrocouple array according to an embodiment of the present invention;

[0020] Figure 3 This is a cross-sectional view of a three-dimensional thermopile according to an embodiment of the present invention.

[0021] Explanation of the reference numerals: 10, cylinder; 20, thermocouple array; 21, thermocouple; 22, lead wire.

[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] This invention provides a three-dimensional thermopile.

[0028] like Figure 1-3 As shown, the three-dimensional thermopile provided in this embodiment of the present invention includes a cylindrical body 10 and an electrocouple array 20 placed along the inner wall of the cylindrical body 10. The electrocouple array 20 includes a plurality of thermocouples 21 connected in series. The first end of the electrocouple array 20 is connected to the cylindrical body 10, and the second end of the electrocouple array 20 has a lead wire 22 extending from the bottom of the cylindrical body 10.

[0029] In this embodiment, the three-dimensional thermopile provided by this application has a simpler structure than the three-dimensional thermopile formed by connecting annular heat flow sensors in series. The sensors are easier to manufacture with consistent performance, and the operating space and usable space for thermocouples 21 are larger during manufacturing, making manufacturing more convenient and accommodating a higher number of thermocouples 21.

[0030] Thermocouple 21 is formed by two different metal materials and is fixed together end to end. The fixing method includes, but is not limited to, welding and using clips.

[0031] The connection point on one side of the formed thermocouple 21 is fixed to an insulating bracket or a non-insulating bracket coated with an insulating layer. Alternatively, the connection points of two thermocouples 21 can be fixed using clips. When using metal or other conductors as clips, their outer surfaces should be insulated or covered with insulating material. The thermocouples 21 can be connected in series by welding, clip fixing, or a combination of both.

[0032] The series-connected thermocouple array 20 is placed along the axial direction of the inner cylinder, with the other end of the thermocouple array 20 adhering to the inner cylinder. The thermocouples 21 can also be placed at a certain angle to the axial direction of the inner cylinder, or even wound in a complete loop, connected end-to-end by insulating material. When connected end-to-end, there is no direct contact; the connection is achieved through fixing with insulating material. The thermocouple array 20 is fixed at both ends with sealing to improve stability.

[0033] One end of the thermocouple array 20 that contacts the inner cylinder can be fixed to an insulating bracket or a non-insulating bracket coated with an insulating layer. Alternatively, the connection point of the two thermocouples 21 can be fixed by clips, wrapped with an insulating material, or treated with insulation. When using metal or other conductors as clips for fixing, the inner cylinder can be insulated. Insulation methods can include wrapping with an insulating film, such as polyimide film, or applying insulating varnish to achieve insulation between the junctions of the thermocouples 21, ensuring that the thermocouples 21 are connected in series.

[0034] When the lead wire 22 is led out from different ends of the sensor, one end of the lead wire 22 can be insulated or covered with an insulating sleeve, which can be made of inorganic or organic material. Then the wires are led to the same end. This facilitates circuit processing and prevents the lead wire 22 from causing a short circuit between the thermocouples 21.

[0035] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A three-dimensional thermopile, characterized by, The three-dimensional thermoelectric pile comprises a cylinder (10) and a thermocouple array (20) arranged along the inner wall of the cylinder (10), the thermocouple array (20) comprises a plurality of series-connected thermocouples (21), the first end of the thermocouple array (20) is connected with the cylinder (10), and the second end of the thermocouple array (20) has a lead-out wire (22) extending from the bottom of the cylinder (10).

2. The three-dimensional thermopile of claim 1, wherein, The thermocouple array (20) is arranged along the axial direction of the inner wall surface of the cylinder (10).

3. The three-dimensional thermopile of claim 1, wherein, The thermocouple array (20) has an inclination angle in the axial direction of the cylinder (10).

4. The three-dimensional thermopile of claim 1, wherein, The thermocouple array (20) is arranged in a ring shape on the inner wall surface of the cylinder (10), and the two ends of the thermocouple array (20) are connected by an insulating material.

5. The three-dimensional thermopile of claim 1, wherein, The thermocouple array (20) and the cylinder (10) are connected by an insulating support or a non-insulating support plated with an insulating layer.

6. The three-dimensional thermopile of claim 1, wherein, The thermocouple array (20) and the cylinder (10) are connected in a snap-fit manner.

7. The three-dimensional thermopile of claim 6, wherein, An insulating film is wrapped around the connection point between the thermocouple array (20) and the cylinder (10).

8. The three-dimensional thermopile of claim 1, wherein, The plurality of thermocouples (21) are connected in a welding and / or snap-fit manner.

9. The three-dimensional thermopile of claim 1, wherein, An insulating sleeve is sleeved on the lead-out wire (22).

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