Temperature sensor assembly with low thermal resistance

Abstract

The utility model relates to a temperature sensor assembling assembly with low thermal resistance, which comprises an elastic clamping plate arranged between a protective sleeve and an assembling body, one end of the elastic clamping plate abuts against the assembling body, and the other end of the elastic clamping plate abuts against the inner wall of the protective sleeve. The main purpose of the utility model is to provide the temperature sensor assembling assembly with low thermal resistance, which can limit and fix the packaged temperature sensor and circuit board so that the packaged temperature sensor and circuit board can be installed in the protective sleeve more stably and firmly, and at the same time, the heat conduction efficiency is greatly improved, and the response time of the temperature sensor is reduced.

Description

Technical Field

[0001] The utility model relates to a temperature sensor assembly, in particular to a temperature sensor assembly with low thermal resistance. Background Art

[0002] Digital temperature sensors are widely used in various industries due to their high measurement accuracy, small size, and low self-temperature rise. Temperature transmitters used in industrial environments also often use digital temperature sensors as the measuring element of the transmitter.

[0003] When installing a digital temperature sensor, it is generally necessary to first package it into a rectangular structure and then weld it to a printed circuit board or a flexible circuit board. The overall structure of the assembled sensor is a rectangular circuit board with a rectangular structure fixedly connected to it. In general applications, it can be attached to the surface of the object to be measured by gluing or crimping. However, when measuring fluid temperature, in order to avoid damage and influence of the fluid on the temperature sensor and the circuit board, it is necessary to add a protective cover to the outside of the circuit board and the digital temperature sensor. However, the protective cover usually adopts a slender circular structure, which is not compatible with the overall structure of the assembled sensor. There are a lot of gaps between the protective cover and the overall structure of the sensor. The gaps are filled with air with relatively low thermal conductivity, which directly affects the response time of the temperature transmitter. Moreover, if the size of the protective cover is too large or too small, it will directly affect the assembly effect. Therefore, the dimensional accuracy of the protective cover is required to be high, and the difficulty of processing and manufacturing is increased. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a temperature sensor assembly with low thermal resistance that can limit and fix the packaged temperature sensor and circuit board so that they can be more stably and firmly installed in the protective cover, while greatly improving the thermal conductivity efficiency.

[0005] In order to solve the above problems, the technical solutions adopted by the utility model are as follows:

[0006] A temperature sensor assembly with low thermal resistance comprises an elastic clamping plate arranged between a protective sleeve and an assembly body, wherein one end of the elastic clamping plate abuts against the assembly body and the other end abuts against the inner wall of the protective sleeve.

[0007] Furthermore, the elastic clamp includes an elastic portion and a clamping portion, one end of the clamping portion is connected to the elastic portion through a transition portion, the elastic portion abuts against an inner wall of the protective sleeve, and the clamping portion abuts against the assembly body.

[0008] Furthermore, there are two elastic clamps, and the two elastic clamps are rotationally symmetrically distributed.

[0009] Furthermore, the assembly is clamped between the clamping parts of two elastic clamping plates.

[0010] Furthermore, a limiting portion is connected to the other end of the clamping portion, and the limiting portion is used to support one side of the limiting assembly.

[0011] Furthermore, the limiting portion extends along the length direction of the clamping portion, and at least one clearance groove is provided on the limiting portion. The position of the transition portion corresponds to the position of the clearance groove. When the two elastic clamps are assembled, the transition portion on one of the elastic clamps is embedded in the clearance groove of the other elastic clamp.

[0012] Furthermore, the elastic clamping plate is a copper elastic clamping plate with high thermal conductivity.

[0013] Furthermore, a surface of the clamping portion in contact with the assembly body is coated with thermal conductive silicone grease.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: in the utility model, a high-thermal-conductivity elastic splint is connected between the protective cover and the assembly to improve the thermal conductivity efficiency, thereby improving the response speed of the temperature sensor; at the same time, by cleverly designing the structure of the elastic splint, the two elastic splints can fit together when assembled together, and the assembly can be clamped and fixed by elastic clamping, thereby improving the installation stability of the assembly, reducing the requirements for the processing accuracy of the protective cover, and helping to improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of an assembly of a temperature sensor with low thermal resistance according to the utility model;

[0016] Figure 2 A three-dimensional diagram of an assembly of a temperature sensor with low thermal resistance (without the protective cover) of the utility model;

[0017] Figure 3 It is a side view of a temperature sensor assembly with low thermal resistance (without the protective cover) of the utility model;

[0018] Figure 4 A three-dimensional diagram of an elastic clamping plate in a temperature sensor assembly with low thermal resistance according to the utility model;

[0019] Figure 5 It is a side view of an elastic clamping plate in a temperature sensor assembly with low thermal resistance according to the utility model;

[0020] Among them, 1. protective cover; 2. assembly; 21. circuit board; 22. packaging box; 3. elastic clamp; 31. elastic part; 32. transition part; 33. clamping part; 34. limiting part; 35. clearance groove. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] It should be noted that, in the description of the technical solution of the present invention, some directional words used to clearly describe the technical features of the present invention, such as "front", "back", "up", "down", "top", "bottom", "inside", "outside", etc., are all in accordance with the orientation of the drawings of the present invention.

[0023] Example

[0024] like Figure 1 and Figure 2 As shown, a temperature sensor assembly with low thermal resistance of this embodiment includes an elastic clamp 3 arranged between a protective sleeve 1 and an assembly 2, and the assembly 2 includes a circuit board 21 and a packaging box 22, and a temperature sensor is installed in the packaging box 22. The elastic clamp 3 is a copper elastic clamp with high thermal conductivity. The copper material with high thermal conductivity has the characteristic of fast thermal conductivity, which can greatly reduce the response time of the temperature transmitter and improve the reaction speed. One end of the elastic clamp 3 abuts against the assembly 2, and the other end abuts against the inner wall of the protective sleeve 1, so as to fix the assembly 2 inside the protective sleeve 1 to prevent it from shaking.

[0025] Specifically, the elastic clamping plate 3 in this embodiment includes an elastic portion 31 and a clamping portion 33. Figure 4 and Figure 5 The elastic part 31 and the clamping part 33 are arranged side by side and spaced apart. One end of the clamping part 33 is connected to the elastic part 31 through the transition part 32. The clamping part 33, the transition part 32 and the elastic part 3 are combined to form a U-shaped elastic sheet structure. The elastic part 31 is an arc-shaped structure that fits the inner wall of the protective sleeve 1, and the clamping part 33 is a plate-shaped structure that fits the assembly 2. The elastic clamping plate 3 in this embodiment adopts an integrated molding structure, which is more stable and has high structural strength.

[0026] Specifically in this embodiment, in order to more firmly limit the position of the assembly 2, two elastic clamps 3 are provided. Figure 3 , the two elastic clamps 3 are rotationally symmetrically distributed. The two elastic clamps 3 are clamped on both sides of the assembly 2, that is, the assembly 2 is clamped between the clamping parts 33 of the two elastic clamps 3. When the two elastic clamps 3 clamp the assembly 2 and are installed together in the protective sleeve 1, the elastic part 31 of each elastic clamp 3 is against the inner wall of the protective sleeve 1 on the corresponding side, and the clamping part 33 of each elastic clamp 3 is against the corresponding side of the assembly 2. At this time, the assembly 2 is clamped and fixed by the rebound force of the U-shaped elastic sheet structure of the two elastic clamps 3. The clamping effect is significant and stable, and it can also make up for the processing error of the protective sleeve 1, reduce the difficulty of processing and manufacturing the protective sleeve 1, thereby reducing the processing cost and improving the production efficiency.

[0027] In order to improve the relative position stability of the two elastic clamps 3, in this embodiment, a limiting portion 34 is connected to the other end of the clamping portion 33, and the limiting portion 34 extends and distributes along the length direction of the clamping portion 33. At least one clearance groove 35 is provided on the limiting portion 34, and the position of the transition portion 32 corresponds to the position of the clearance groove 35. When the two elastic clamps 3 are assembled, the transition portion 32 on one elastic clamp 3 is embedded in the clearance groove 35 of the other elastic clamp 3, so that the positions of the two elastic clamps 3 can be relatively fixed, and the combination of the two can be improved, which is convenient for assembly and disassembly, and the stability of the clamping of the assembly 2 is strengthened. The mutual limitation of the two elastic clamps 3 improves the connection stability with the protective sleeve 1, so that the two elastic clamps 3 are not easily offset when installed in the protective sleeve 1. In addition, the limiting portion 34 is used to support one side of the limiting assembly 2. Specifically, in this embodiment, the limiting parts 34 on the two elastic clamps 3 are respectively located on the upper and lower sides of the assembly 2, and together with the clamping parts 33 on the two elastic clamps 3, they enclose a rectangular limiting space. The assembly 2 is located in the rectangular limiting space, and the limiting effect is more stable and reliable.

[0028] In this embodiment, a surface of the clamping portion 33 in contact with the assembly body 2 is coated with thermal conductive silicone grease to further improve the thermal conductivity efficiency, thereby further reducing the response time of the temperature sensor.

[0029] The utility model discloses a temperature sensor assembly with low thermal resistance, which improves the thermal conductivity efficiency and thus improves the response speed of the temperature sensor by connecting and arranging an elastic clamping plate 3 with high thermal conductivity between the protective sleeve 1 and the assembly body 2; at the same time, by cleverly designing the structure of the elastic clamping plate 3, the two elastic clamping plates 3 can fit in with each other when assembled together, and the assembly body 2 can be clamped and fixed by elastic clamping, thereby improving the installation stability of the assembly body 2, reducing the requirements for the processing accuracy of the protective sleeve 1, and facilitating improving production efficiency.

[0030] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the utility model.

Claims

1. A temperature sensor assembly with low thermal resistance, characterized in that: It comprises an elastic clamping plate (3) arranged between the protective sleeve (1) and the assembly body (2), wherein one end of the elastic clamping plate (3) abuts against the assembly body (2) and the other end abuts against the inner wall of the protective sleeve (1).

2. A temperature sensor assembly with low thermal resistance according to claim 1, characterized in that: The elastic clamp (3) comprises an elastic portion (31) and a clamping portion (33); one end of the clamping portion (33) is connected to the elastic portion (31) via a transition portion (32); the elastic portion (31) abuts against an inner wall of the protective sleeve (1); and the clamping portion (33) abuts against the assembly body (2).

3. A temperature sensor assembly with low thermal resistance according to claim 2, characterized in that: The elastic clamping plates (3) are two, and the two elastic clamping plates (3) are rotationally symmetrically distributed.

4. A temperature sensor assembly with low thermal resistance according to claim 3, characterized in that: The assembly (2) is clamped between the clamping portions (33) of two elastic clamping plates (3).

5. A temperature sensor assembly with low thermal resistance according to claim 4, characterized in that: The other end of the clamping portion (33) is connected to a limiting portion (34), and the limiting portion (34) is used to support one side of the limiting assembly (2).

6. A temperature sensor assembly with low thermal resistance according to claim 5, characterized in that: The limiting portion (34) extends along the length direction of the clamping portion (33), and at least one clearance groove (35) is provided on the limiting portion (34). The position of the transition portion (32) corresponds to the position of the clearance groove (35). When the two elastic clamping plates (3) are assembled, the transition portion (32) on one of the elastic clamping plates (3) is embedded in the clearance groove (35) of the other elastic clamping plate (3).

7. The temperature sensor assembly with low thermal resistance according to claim 1, characterized in that: The elastic clamping plate (3) is a copper elastic clamping plate with high thermal conductivity.

8. A temperature sensor assembly with low thermal resistance according to claim 2 or 4, characterized in that: The surface of the clamping portion (33) that contacts the assembly (2) is coated with thermal conductive silicone grease.

Images