Temperature sensor

Abstract

Provided is a temperature sensor. The first framework and the second framework are arranged in the shell and are connected with each other; the thermistor is arranged between the first framework and the second framework; the first through hole is formed in one end of the first framework; the second through hole is formed in one end of the second framework; the positioning hole is formed in one end, close to the first through hole, of the first framework, the opening is formed in the thermistor, and the positioning column is arranged at one end of the inner wall of the shell and used for being inserted into the positioning hole; wherein the first framework and the second framework are both made of a polyphenylene sulfide material, the first framework is positioned at the connecting position with the shell through a positioning column, and the first framework and the second framework are fixed in the shell through a fixing column; according to the utility model, the polyphenylene sulfide material is adopted, and the first framework, the second framework and the shell are mutually matched and buckled, so that the strength of the connection structure is enhanced, and the stability of the sensitivity of the temperature sensor is ensured.

Description

Technical Field

[0001] The utility model relates to the field of industrial equipment, and particularly relates to a temperature sensor. Background Art

[0002] As an indispensable key component in modern industry and electronic equipment, temperature sensors have a profound technical background and wide applications. These sensors measure temperature based on the physical property changes of materials, such as the thermoelectric effect, resistance change, etc., ensuring high-precision temperature monitoring. There are various common types of temperature sensors, including thermocouples, thermistors, and IC temperature sensors, etc., and each type has its unique measurement principle and application scenario. In the design and manufacture of temperature sensors, material selection is particularly crucial, directly affecting the performance and stability of the sensors. However, in recent years, in order to reduce costs and reduce weight, some temperature sensors have adopted a thin-wall design for plastic housings. Although this design brings economic benefits, it also faces significant challenges. When the thin-wall plastic housing is subjected to external force impacts or long-term use, its durability is greatly reduced, and it is prone to cracking or deformation, affecting the sealing performance of the sensor and the reliability of long-term use, and easily causing functional problems of the sensor.

[0003] Therefore, it is necessary to provide a new technical solution to overcome the above defects. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a temperature sensor that can effectively solve the above technical problems.

[0005] To achieve the purpose of the utility model, the following technical solutions are adopted:

[0006] A temperature sensor, characterized in that: it includes a housing, a first skeleton and a second skeleton which are arranged in the housing and connected to each other, a thermistor arranged between the first skeleton and the second skeleton, a first through hole arranged at one end of the first skeleton, a second through hole arranged at one end of the second skeleton, a fixing column arranged on the inner wall of the housing and used to penetrate the first through hole and the second through hole, a positioning hole arranged at one end of the first skeleton close to the first through hole, an opening arranged on the thermistor, and a positioning column arranged at one end of the inner wall of the housing and used to be inserted into the positioning hole;

[0007] Wherein, both the first skeleton and the second skeleton are made of polyphenylene sulfide material, the connection position of the first skeleton and the housing is positioned by the positioning column, and the first skeleton and the second skeleton are fixed inside the housing by the fixing column.

[0008] Furthermore, a plurality of first tooth patterns are arranged on the outer surface of one end of the first skeleton, and a plurality of second tooth patterns with the same shape and structure as the first tooth patterns are arranged on the outer surface of one end of the second skeleton.

[0009] Furthermore, one end inner wall of the outer shell is provided with a toothed groove, and the cross-section of the outer shell near the toothed groove is circular.

[0010] Furthermore, the cross-section shape of one end of the first skeleton provided with the first tooth pattern is semi-circular, and the cross-section shape of one end of the second skeleton provided with the second tooth pattern is semi-circular.

[0011] Furthermore, one end of the first skeleton near the positioning hole is provided with a first connecting block, and the cross-section shape of the first connecting block is rectangular.

[0012] Furthermore, one end of the second skeleton is provided with a second connecting block having the same shape and structure as the first connecting block.

[0013] Furthermore, one end of the outer shell is provided with a connecting cavity for clamping the first connecting block and the second connecting block; wherein, the cross-section shape of the connecting cavity is circular.

[0014] Furthermore, a clamping groove is provided on the outer side of one end of the outer shell near the connecting cavity, and a fixing ring is sleeved on the clamping groove.

[0015] Furthermore, the first through hole, the second through hole and the opening are arranged on the same center line.

[0016] Furthermore, both the positioning post and the fixing post are cylindrical, and both the positioning post and the fixing post are integrally structured with the outer shell.

[0017] Beneficial effects: The utility model adopts polyphenyl sulfide (Polyphenyl sulfide granula) material, and through the mutual cooperation and buckling of the first skeleton, the second skeleton and the outer shell, while enhancing the connection structure, the stability of the sensitivity of the temperature sensor is ensured. Description of the Drawings

[0018] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the utility model, and do not constitute a limitation to the utility model.

[0019] Figure 1 It is a three-dimensional view of the utility model.

[0020] Figure 2 It is an exploded view of the utility model.

[0021] Figure 3 It is a connection diagram of the first skeleton and the second skeleton of the utility model.

[0022] Figure 4 It is a first cross-sectional view of the outer shell of the utility model.

[0023] Figure 5 It is a second cross-sectional view of the outer shell of the utility model.

[0024] Figure 6 This is the third cross-sectional view of the housing of the present utility model.

[0025] In the figure: 1. Housing; 2. First skeleton; 3. Second skeleton; 4. Thermistor; 5. First perforation; 6. Second perforation; 7. Fixed column; 8. Positioning hole; 9. Opening; 10. Positioning column; 11. First tooth pattern; 12. Second tooth pattern; 13. Tooth pattern groove; 14. First connecting block; 15. Second connecting block; 16. Connecting cavity; 17. Fixed ring; 18. Clamping groove. Detailed implementation manners

[0026] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Apparently, the described embodiments are only some of the embodiments of the present utility model, rather than all of them.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "transverse", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present utility model. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0028] Such as Figures 1 to 6As shown in the figure, a temperature sensor includes a housing 1, a first skeleton 2 and a second skeleton 3 which are arranged inside the housing 1 and connected to each other, a thermistor 4 arranged between the first skeleton 2 and the second skeleton 3, a fixing ring 17 sleeved on one end of the outer surface of the housing 1, a first through hole 5 arranged at one end of the first skeleton 2, a second through hole 6 arranged at one end of the second skeleton 3 and concentric with the first through hole 5, a fixing column 7 arranged on the inner wall of the housing 1 and used for penetrating the first through hole 5 and the second through hole 6, a positioning hole 8 arranged at one end of the first skeleton 2 close to the first through hole 5, an opening 9 arranged on the thermistor 4 and concentric with the first through hole 5, and a positioning column 10 arranged at one end of the inner wall of the housing 1 and used for plugging into the positioning hole 8; wherein, both the first skeleton 2 and the second skeleton 3 are made of polyphenyl sulfide granula. The connection position of the first skeleton 2 and the housing 1 is positioned through the positioning column 10, and the first skeleton 2 and the second skeleton 3 are fixed inside the housing 1 through the fixing column 7; in this embodiment, the first skeleton 2 and the second skeleton 3 can be welded or adhered. By using polyphenyl sulfide granula material, the high sensitivity of the thermistor 4 is ensured, and due to the high mechanical strength and rigidity of the polyphenyl sulfide granula material, the thermistor 4 can withstand greater external force, and the internal components of the sensor can be effectively protected when the sensor is vibrated or impacted to prevent damage. Moreover, due to the high dimensional stability and electrical insulation of the polyphenyl sulfide granula material, the stability of the sensitivity of the temperature sensor can be effectively ensured; it should be noted that by using polyphenyl sulfide granula material, when the first skeleton 2 and the second skeleton 3 are assembled, the functional problems caused by the thin-wall design in the injection molding production process of the traditional plastic housing can also be avoided.

[0029] A plurality of first tooth patterns 11 are arranged on the outer surface of one end of the first skeleton 2, and a plurality of second tooth patterns 12 with the same shape and structure as the first tooth patterns 11 are arranged on the outer surface of one end of the second skeleton 3; in this embodiment, the first skeleton 2 and the second skeleton 3 are connected to each other so that the first tooth patterns 11 and the second tooth patterns 12 form a plurality of elliptical tooth patterns. A tooth pattern groove 13 is arranged on the inner wall of one end of the housing 1. The cross-section of one end of the housing 1 close to the tooth pattern groove 13 is circular, the cross-section shape of the end of the first skeleton 2 with the first tooth patterns 11 is semi-circular, the cross-section shape of the end of the second skeleton 3 with the second tooth patterns 12 is semi-circular, and the cross-section shape of the first skeleton 2 and the second skeleton 3 after being buckled is circular. The buckled first skeleton 2 and second skeleton 3 are inserted into the housing 1, and the first tooth patterns 11 and the second tooth patterns 12 are respectively clamped with the tooth pattern groove 13 to reinforce the connection structure of the first skeleton 2, the second skeleton 3 and the housing 1 and prevent the first skeleton 2 and the second skeleton 3 from detaching from the housing 1.

[0030] One end of the first frame 2 close to the positioning hole 8 is provided with a first connecting block 14. The cross-sectional shape of the first connecting block 14 is rectangular. One end of the second frame 3 is provided with a second connecting block 15 having the same shape and structure as the first connecting block 14. One end of the outer shell 1 is provided with a connecting cavity 16 for clamping the first connecting block 14 and the second connecting block 15. The cross-sectional shape of the connecting cavity 16 is oval. In this embodiment, through the mutual connection of the first frame 2 and the second frame 3, the first connecting block 14 and the second connecting block 15 form a block body for inserting into the connecting cavity 16. The cross-sectional shape of the block body is oval. During the actual connection process, by inserting the first connecting block 14 and the second connecting block 15 into the connecting cavity 16, both ends of the first connecting block 14 are respectively abutted against the inner wall of the connecting cavity 16, and both ends of the second connecting block 15 are respectively abutted against the inner wall of the connecting cavity 16, which facilitates the user to insert the first frame 2 and the second frame 3 into the outer shell 1. It should be noted that in this embodiment, the outer shell 1 is made of rubber material, and a clamping groove 18 is provided on the outer side of one end of the outer shell 1 close to the connecting cavity 16. A fixing ring 17 is sleeved on the clamping groove 18. By providing the fixing ring 17, the connection structure between the outer shell 1 and the first frame 2 and the second frame 3 is further strengthened, preventing detachment.

[0031] Both the positioning post 10 and the fixing post 7 are cylinders, and both the positioning post 10 and the fixing post 7 are integrally structured with the outer shell 1. By providing the cylindrical fixing post 7, it is convenient to pass through the fixing post 7 through the first through hole 5 and the second through hole 6 in sequence, facilitating user assembly.

[0032] Working principle: The first frame 2 and the second frame 3 are buckled, and the outer shell 1 is wrapped around the first frame 2 and the second frame 3. The first frame 2 and the second frame 3 are fixed inside the outer shell 1 through the fixing post 7, and the first tooth pattern 11 and the second tooth pattern 12 are respectively clamped with the tooth pattern groove 13.

[0033] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. Plus, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0034] It should be understood that for those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A temperature sensor, characterized in that: The device comprises a housing (1), a first frame (2) and a second frame (3) which are arranged in the housing (1) and connected to each other, a thermistor (4) arranged between the first frame (2) and the second frame (3), a first through hole (5) arranged at one end of the first frame (2), a second through hole (6) arranged at one end of the second frame (3), a fixing column (7) arranged on the inner wall of the housing (1) and used to penetrate the first through hole (5) and the second through hole (6), a positioning hole (8) arranged at one end of the first frame (2) close to the first through hole (5), an opening (9) arranged on the thermistor (4), and a positioning column (10) arranged at one end of the inner wall of the housing (1) and used to be plugged into the positioning hole (8); The first frame (2) and the second frame (3) are both made of polyphenylene sulfide material; the first frame (2) is positioned at a connection position with the outer shell (1) by a positioning column (10); and the first frame (2) and the second frame (3) are fixed to the inside of the outer shell (1) by a fixing column (7).

2. A temperature sensor according to claim 1, characterized in that: A plurality of first tooth patterns (11) are provided on the outer surface of one end of the first frame (2), and a plurality of second tooth patterns (12) having the same shape and structure as the first tooth patterns (11) are provided on the outer surface of one end of the second frame (3).

3. A temperature sensor according to claim 2, characterized in that: A toothed groove (13) is provided on the inner wall of one end of the shell (1), and the cross section of one end of the shell (1) close to the toothed groove (13) is circular.

4. A temperature sensor as claimed in claim 3, characterized in that: The cross-sectional shape of one end of the first frame (2) provided with the first tooth pattern (11) is semicircular, and the cross-sectional shape of one end of the second frame (3) provided with the second tooth pattern (12) is semicircular.

5. A temperature sensor as claimed in claim 4, characterized in that: A first connection block (14) is provided at one end of the first frame (2) close to the positioning hole (8); the cross-sectional shape of the first connection block (14) is rectangular.

6. A temperature sensor according to claim 5, characterized in that: A second connecting block (15) having the same shape and structure as the first connecting block (14) is provided at one end of the second frame (3).

7. A temperature sensor according to claim 6, characterized in that: One end of the housing (1) is provided with a connection cavity (16) for clamping the first connection block (14) and the second connection block (15); wherein the cross-sectional shape of the connection cavity (16) is circular.

8. A temperature sensor according to claim 7, characterized in that: A clamping groove (18) is provided on the outer side of one end of the housing (1) close to the connecting cavity (16), and a fixing ring (17) is sleeved on the clamping groove (18).

9. A temperature sensor according to claim 1, characterized in that: The first through hole (5), the second through hole (6) and the opening (9) are arranged on the same center line.

10. A temperature sensor according to claim 1, characterized in that: The positioning column (10) and the fixing column (7) are both cylinders, and the positioning column (10) and the fixing column (7) are both integral structures with the housing (1).

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