A high-precision temperature sensor capable of being quickly installed
Patent Information
- Application Number
- CN202522373077.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-07
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-07
AI Technical Summary
[0002]目前市场上表面贴装的温度传感器安装固定方式多为螺纹旋紧(直接锁紧温度传感器或者间接锁紧压片压紧)或采用粘贴的固定方式，螺纹旋紧需要开螺纹孔，且安装需要使用对应工具，安装过程耗时耗力，特别是直接螺纹旋紧的安装方式，生产为了提升效率采用电动旋钮的方式，高速旋转时引线极易出现损伤拉扯，导致温度传感器敏感元件或者密封层受力破坏而失效的情况，同时在一些安装狭小的结构里无法操作，必须提前预装，不能连续生产，贴装方式受温度限制只适用于常温或低温，且以上操作方式安装好后拆卸又困难，遇上返修或者售后拆件，工时损耗极大，故此，我们推出一种可快速安装高精度温度传感器
[0017]1、本实用新型中，通过弹簧与安装结构件的配合设计，实现温度传感器的无工具快速安装与拆卸，安装时，仅需向下按压铝合金件，利用弹簧的压缩弹力即可将热敏电阻的测温面紧密贴合测温点，拆卸时反向提拉即可分离，相较传统螺丝固定或胶水粘接方式，大幅缩短操作时间，显著提高设备装配与售后维护效率；
Smart Images
Figure CN224921309U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of temperature sensor technology, and in particular to a high-precision temperature sensor that can be quickly installed. Background Technology
[0002] Currently, most surface-mount temperature sensors on the market are installed and fixed by screw tightening (directly locking the temperature sensor or indirectly locking the pressure plate) or adhesive bonding. Thread tightening requires drilling threaded holes and the use of corresponding tools, making the installation process time-consuming and labor-intensive. In particular, for the direct thread tightening installation method, in order to improve efficiency, electric knobs are used in production. However, the leads are easily damaged and pulled when rotated at high speed, which can cause the temperature sensor's sensitive element or sealing layer to fail due to stress. At the same time, it is impossible to operate in some confined structures, and pre-installation is required, which prevents continuous production. The surface mounting method is limited to room temperature or low temperature and is difficult to disassemble after installation. When encountering repairs or after-sales disassembly, the labor time is greatly lost. Therefore, we have launched a high-precision temperature sensor that can be installed quickly. Utility Model Content
[0003] The main objective of this invention is to provide a high-precision temperature sensor that can be quickly installed, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A high-precision temperature sensor that can be quickly installed includes a temperature measuring point and a mounting structure. An aluminum alloy part is movably sleeved on the upper end of the mounting structure. A stepped hole is opened on the lower inner wall of the aluminum alloy part. A spring is fixedly connected to the lower part of the outer surface of the aluminum alloy part. A lead wire is fixedly installed inside the aluminum alloy part. A thermistor is welded to the lower end of the lead wire. The aluminum alloy part is filled with epoxy resin.
[0006] Preferably, there is a gap between the outer surface of the aluminum alloy part and the spring.
[0007] By adopting the above technical solution, the gap design between the outer surface of the aluminum alloy part and the spring provides sufficient room for the spring to move during compression and rebound, avoiding friction or jamming between the spring and the outer surface of the aluminum alloy part.
[0008] Preferably, the aluminum alloy part has a structure that is larger at the top and smaller at the bottom.
[0009] By adopting the above technical solution, in addition to securing the spring and making the installation more stable, the head greatly increases the contact area with the temperature measuring point, further accelerating heat absorption and transfer, and further improving the reaction speed.
[0010] Preferably, the thermistor is located inside the stepped hole.
[0011] By adopting the above technical solution, the high thermal conductivity of aluminum alloy is fully utilized to increase the contact area between the metal and the thermistor chip, allowing heat to accumulate more quickly at the thermistor head, enabling real-time response and faster reaction speed.
[0012] Preferably, the upper end of the spring is in contact with the upper inner wall surface of the mounting structure.
[0013] By adopting the above technical solution, the upper end of the spring is in close contact with the inner wall surface of the mounting structure, ensuring that the spring is always in a compressed state after the temperature sensor is installed, providing stable and continuous downward pressure to the aluminum alloy parts.
[0014] Preferably, the thermistor is bonded to the stepped hole with epoxy resin.
[0015] By adopting the above technical solution: the thermistor is welded to the lead wire, an external insulation layer is applied, and then epoxy resin is used to encapsulate it into an aluminum alloy part to form a whole. After the epoxy resin cures, the spring is then put on the outside of the aluminum alloy part to form a complete product.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. In this utility model, the temperature sensor can be quickly installed and disassembled without tools by means of the cooperation design of the spring and the mounting structure. During installation, only the aluminum alloy part needs to be pressed down, and the spring compression force can be used to tightly fit the temperature measuring surface of the thermistor with the temperature measuring point. During disassembly, it can be separated by pulling in the opposite direction. Compared with the traditional screw fixing or glue bonding method, the operation time is greatly shortened and the efficiency of equipment assembly and after-sales maintenance is significantly improved.
[0018] 2. In this utility model, the stepped hole structure inside the aluminum alloy part fully utilizes the high thermal conductivity of aluminum alloy. By increasing the contact area with the thermistor, heat can be quickly accumulated and transferred to the thermistor head, effectively shortening the temperature response time. At the same time, the aluminum alloy part structure with a large head and small tail further expands the contact area with the temperature measuring point, further accelerating heat conduction and improving the overall sensitivity of the sensor. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of a high-precision temperature sensor that can be quickly installed according to this utility model;
[0020] Figure 2 This is a schematic diagram of the combined connection structure of the lead wire, aluminum alloy parts and spring of a high-precision temperature sensor that can be quickly installed according to this utility model.
[0021] Figure 3This is a schematic diagram of the combined connection structure of a thermistor, stepped hole, epoxy resin, aluminum alloy parts and lead wires for quick installation of a high-precision temperature sensor according to this utility model (the aluminum alloy parts are cut out).
[0022] Figure 4 This is a schematic diagram of the stepped hole structure of a high-precision temperature sensor that can be quickly installed according to the present invention (the aluminum alloy part has been cut out).
[0023] Figure 5 This is a side view of a mounting structure for quickly installing a high-precision temperature sensor according to the present invention.
[0024] Figure 6 This is a top view of a mounting structure for quickly installing a high-precision temperature sensor according to the present invention.
[0025] In the diagram: 1. Thermistor; 2. Lead wire; 3. Epoxy resin; 4. Aluminum alloy part; 5. Spring; 6. Mounting structure; 7. Temperature measuring point; 8. Step hole. Detailed Implementation
[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, 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 used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. 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 an indirect connection through an intermediate medium; it can be a connection within 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.
[0029] Please see Figure 1-6 This utility model provides a technical solution:
[0030] A high-precision temperature sensor that can be quickly installed includes a temperature measuring point 7 and a mounting structure 6. An aluminum alloy part 4 is movably sleeved on the upper end of the mounting structure 6. A stepped hole 8 is opened on the lower inner wall of the aluminum alloy part 4. A spring 5 is fixedly connected to the lower part of the outer surface of the aluminum alloy part 4. A lead wire 2 is fixedly installed inside the aluminum alloy part 4. A thermistor 1 is welded to the lower end of the lead wire 2. The aluminum alloy part 4 is filled with epoxy resin 3.
[0031] In this embodiment, there is a gap between the outer surface of the aluminum alloy part 4 and the spring 5; the aluminum alloy part 4 adopts a structure with a large head and a small tail; the thermistor 1 is located in the stepped hole 8; the upper end of the spring 5 is in contact with the upper inner wall surface of the mounting structure 6; the thermistor 1 is bonded to the stepped hole 8 by epoxy resin 3.
[0032] It should be noted that this utility model is a high-precision temperature sensor that can be installed quickly. During use, hold the aluminum alloy part 4 of the temperature sensor and align it with the socket of the mounting structure 6. Press down on the aluminum alloy part 4 so that it slides along the inner wall of the mounting structure 6. The spring 5 is compressed and comes into contact with the upper inner wall surface of the mounting structure 6. Continue to apply pressure until the temperature measuring surface at the bottom of the stepped hole 8 where the thermistor 1 is located is tightly attached to the temperature measuring point 7. At this time, the spring 5 provides a stable clamping force to ensure that the sensor and the temperature measuring point are in close contact without gaps. Release the pressure, and the elastic force of the spring 5 keeps the sensor in a stable installation state. The whole process does not require the assistance of tools.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A high-precision temperature sensor that can be quickly installed, comprising a temperature measuring point (7) and a mounting structure (6), characterized in that: An aluminum alloy part (4) is movably sleeved on the upper end of the mounting structure (6). A stepped hole (8) is opened on the lower inner wall surface of the aluminum alloy part (4). A spring (5) is fixedly connected to the lower part of the outer surface of the aluminum alloy part (4). A lead wire (2) is fixedly installed inside the aluminum alloy part (4). A thermistor (1) is welded to the lower end of the lead wire (2). Epoxy resin (3) is filled inside the aluminum alloy part (4).
2. The high-precision temperature sensor that can be quickly installed according to claim 1, characterized in that: There is a gap between the outer surface of the aluminum alloy part (4) and the spring (5).
3. A high-precision temperature sensor that can be quickly installed according to claim 1, characterized in that: The aluminum alloy part (4) has a structure that is large at the head and small at the tail.
4. A high-precision temperature sensor that can be quickly installed according to claim 1, characterized in that: The thermistor (1) is located inside the stepped hole (8).
5. A high-precision temperature sensor that can be quickly installed according to claim 1, characterized in that: The upper end of the spring (5) is in contact with the upper inner wall surface of the mounting structure (6).
6. A high-precision temperature sensor that can be quickly installed according to claim 4, characterized in that: The thermistor (1) is bonded to the stepped hole (8) with epoxy resin (3).