Thermocouple fixing structure
By designing the thermocouple wire groove structure, including the tail fixing position, probe fixing position, and wire clamping block, the problem of complex existing thermocouple fixing methods is solved, achieving convenient installation and stable temperature measurement effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUXCASE PRECISION TECH (YANCHENG) CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-08-04
AI Technical Summary
Existing thermocouple fixing methods are complex, inconvenient to operate, and lack convenient fixing methods.
It adopts a thermocouple wire groove structure, including a tail fixing position, a probe fixing position and a wire clamping block, and is designed to be any bending shape to simplify the installation process.
This enables convenient installation of thermocouples, improves the stability and reliability of temperature measurement, reduces the risk of wire fatigue breakage, and extends service life.
Smart Images

Figure CN224594079U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of temperature measurement, and in particular relates to a thermocouple fixing structure. Background Technology
[0002] In the existing technology of temperature measurement, thermocouples are commonly used temperature sensors. However, for surface temperature measurement, there is currently a lack of a reliable and convenient method for fixing thermocouple probes.
[0003] Patent CN220670747U discloses a device for fixing thermocouple nodes. In this patent, the thermocouple is fixed by means of upper and lower fixing plates, which involves the alignment, clamping and fastening of multiple parts. The steps are complicated and the operation is inconvenient. Existing fixing methods have the problem of complicated installation. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned problems by providing a thermocouple fixing structure that can solve the above-mentioned technical issues.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A thermocouple fixing structure includes a thermocouple groove disposed on any surface of a plate, a tail fixing position provided at one end of the thermocouple groove, a probe fixing position provided at the remaining end of the thermocouple groove, and a plurality of wire clamping blocks provided on both sides of the thermocouple groove along the direction of the thermocouple groove.
[0007] Furthermore, a probe stop is provided at the connection between the probe fixing position and the thermocouple groove, and the thickness of the probe stop is less than the groove depth of the thermocouple groove.
[0008] Furthermore, the side of the wire clamping block facing the thermocouple groove is a plane or curved surface connected to the side wall of the thermocouple groove.
[0009] Furthermore, the side of the wire clamping block facing the thermocouple groove is flush with the side wall of the thermocouple groove.
[0010] Furthermore, the side of the wire clamping block facing the thermocouple groove is distributed at an angle to the sidewall of the thermocouple groove.
[0011] Furthermore, the wire clamping blocks on one side of the thermocouple wire groove are symmetrically distributed with the wire clamping blocks on the other side.
[0012] Furthermore, the wire clamping blocks on one side of the thermocouple wire groove are staggered with the wire clamping blocks on the other side.
[0013] Furthermore, the top surface of the wire clamping block is flush with the surface of the plate.
[0014] Furthermore, one end of the thermocouple groove is located at the edge of the plate.
[0015] Furthermore, the bottom surface of the thermocouple groove located at the tail fixed position is distributed at an angle to the bottom surface of the remaining part of the thermocouple groove.
[0016] Compared with existing technologies, the advantages of this application are as follows: This structure can be designed into any curved shape and laid on the surface of the plate according to actual temperature measurement needs, breaking through the strict limitations of traditional fixing methods on the position and path of temperature measurement points; the tail fixing position, probe fixing position and wire clamping block constitute a multi-level fixing system, and the installation can be completed by simply pressing the thermocouple wire into the thermocouple wire groove, which effectively solves the problem of complicated installation in existing technologies. Attached Figure Description
[0017] Figure 1 This is a schematic front view of the thermocouple fixing structure of this utility model;
[0018] Figure 2 for Figure 1 Enlarged view of structural details in region A;
[0019] Figure 3 This is a schematic front view of the thermocouple fixing structure of this utility model;
[0020] Figure 4 for Figure 3 Enlarged view of the cross-section of section BB.
[0021] In the figure, plate 1, thermocouple wire groove 2, tail fixing position 3, probe fixing position 4, stop part 41, and wire clamping block 5. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0025] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0026] Example 1
[0027] like Figures 1-2 As shown, a thermocouple fixing structure for surface temperature measurement or thin plate-like main structures includes a thermocouple groove 2 disposed on any surface of a plate 1. The thermocouple groove 2 can be designed with any curved shape and distributed on the surface of the plate 1 as needed. A tail fixing position 3 is provided at one end of the thermocouple groove 2, distributed along the edge of the plate 1. Its main purpose is to optimize the lead-out path of the thermocouple wire. This included angle allows the wire to smoothly transition from the groove to the tail fixing area, effectively avoiding excessive stress concentration caused by right-angle or acute-angle bends at the lead-out point. This smooth transition significantly reduces the risk of fatigue fracture of the wire's metal core or insulation layer due to repeated bending under long-term use, improving the service life of the wire and the reliability of the connection.
[0028] The remaining end of the thermocouple wire groove 2 is provided with a probe fixing position 4. A probe stop 41 is also provided at the connection between the probe fixing position 4 and the thermocouple wire groove 2. The thickness of the probe stop 41 is less than the groove depth of the thermocouple wire groove 2.
[0029] The tail fixing position 3 is designed to secure the end of the thermocouple wire, including a clamping device to ensure the wire remains secure within the slot. The probe fixing position 4 is specifically designed to accommodate and fix the thermocouple's temperature probe body. Its shape is typically adapted to the probe's profile, such as a circular groove or a square holder, and may be equipped with a spring-loaded snap or pressure plate structure for reliable fixation. The probe stop 41, with its raised or stepped structure, precisely limits the insertion depth of the temperature probe along the slot direction, ensuring the probe tip reaches the predetermined temperature measurement point. Simultaneously, because its thickness is less than the slot depth, the cover plate or filler can smoothly cover the entire slot path, completely protecting the thermocouple and its wires within the slot, preventing external damage and improving the stability and accuracy of temperature measurement. The entire fixing structure allows for flexible wiring of the thermocouple according to the temperature field distribution on the plate surface, and through precise fixing and limiting design, it ensures the positional accuracy of the temperature measurement point and the reliability of long-term use.
[0030] Furthermore, such as Figure 2 As shown, several wire-clamping blocks 5 are respectively provided on both sides of the thermocouple wire groove 2 along the direction of the thermocouple wire groove 2, which have multiple implementation schemes:
[0031] 1. The wire clamping blocks 5 on one side of the thermocouple wire groove 2 are symmetrically distributed with the wire clamping blocks 5 on the other side.
[0032] 2. The wire clamping block 5 on one side of the thermocouple wire groove 2 is staggered with the wire clamping block 5 on the other side.
[0033] Furthermore, the side of the wire clamping block 5 facing the thermocouple groove 2 is a plane or curved surface connected to the side wall of the thermocouple groove 2; when the side of the wire clamping block 5 facing the thermocouple groove 2 is a plane connected to the side wall of the thermocouple groove 2, this embodiment provides two design schemes:
[0034] 1. The side of the wire clamping block 5 facing the thermocouple groove 2 is flush with the side wall of the thermocouple groove 2.
[0035] 2. The side of the wire clamping block 5 facing the thermocouple groove 2 is distributed at an angle to the side wall of the thermocouple groove 2.
[0036] The core function of the wire clamping block 5 is to assist in the positioning and constraint of the thermocouple wires located within the thermocouple wire groove 2, preventing them from shifting or excessively bending within the groove. When the side of the wire clamping block 5 facing the groove is flat and flush with the groove sidewall, this flat surface forms a natural extension or reinforcing rib of the groove sidewall, creating a regular cable channel, suitable for scenarios with strict requirements for the straightness of the wire arrangement. When this flat surface is distributed at an angle to the groove sidewall, it can provide additional guidance or limiting support at locations where the wire needs to turn or branch. Regardless of whether a symmetrical or staggered distribution is used, these wire clamping blocks 5 can effectively restrict the wires to a predetermined trajectory within the groove, and work in conjunction with any subsequent cover plates or fillers to ensure that the wires remain stable and orderly throughout the entire path, thereby improving the reliability of the temperature measurement signal and the durability of long-term use.
[0037] And, as Figures 3-4 As shown, the top surface of the wire clamping block 5 is flush with the surface of the plate 1, ensuring that after the thermocouple wires are constrained by the wire clamping block 5 and laid in the thermocouple wire groove 2, the upper surface of the entire thermocouple wire groove 2 area (including the wire clamping block 5 itself) is at the same level as the original surface of the plate 1. This design brings multiple advantages:
[0038] First, it eliminates the need for separate slotting or trimming of the protruding wire clip 5, simplifying the packaging process and ensuring the continuity and integrity of the board 1 surface. Second, the flush surface minimizes the impact on the original function or appearance of the board 1, avoiding problems such as scratches, dust accumulation, or increased fluid resistance that may be caused by structural protrusions.
[0039] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. A thermocouple fixing structure characterized by comprising: It includes a thermocouple groove (2) disposed on any surface of the plate (1), a tail fixing position (3) is provided at one end of the thermocouple groove (2), a probe fixing position (4) is provided at the remaining end of the thermocouple groove (2), and several wire clamping blocks (5) are respectively provided on both sides of the thermocouple groove (2) along the direction of the thermocouple groove (2).
2. The thermocouple fixation structure according to claim 1, wherein A probe stop (41) is also provided at the connection between the probe fixing position (4) and the thermocouple groove (2). The thickness of the probe stop (41) is less than the groove depth of the thermocouple groove (2).
3. The thermocouple fixation structure according to claim 1, wherein The side of the wire clamp (5) facing the thermocouple groove (2) is a plane or curved surface connected to the side wall of the thermocouple groove (2).
4. The thermocouple fixation structure according to claim 3, wherein The side of the wire clamp (5) facing the thermocouple groove (2) is flush with the side wall of the thermocouple groove (2).
5. The thermocouple fixation structure according to claim 3, wherein The side of the wire clamp (5) facing the thermocouple groove (2) is distributed at an angle to the side wall of the thermocouple groove (2).
6. The thermocouple fixation structure according to claim 1, wherein The wire clamping blocks (5) on one side of the thermocouple wire groove (2) are symmetrically distributed with the wire clamping blocks (5) on the other side.
7. The thermocouple fixation structure according to claim 1, wherein The wire clamping block (5) on one side of the thermocouple wire groove (2) is staggered with the wire clamping block (5) on the other side.
8. The thermocouple fixation structure according to claim 1, wherein The top surface of the wire clip (5) is flush with the surface of the plate (1) at the same height.
9. The thermocouple fixation structure according to claim 1, wherein One end of the thermocouple groove (2) is located at the edge of the plate (1).
10. The thermocouple fixation structure according to claim 9, wherein The bottom surface of the thermocouple groove (2) located at the tail fixing position (3) is at an angle to the bottom surface of the remaining part of the thermocouple groove (2).