Novel temperature sensor connection structure

Abstract

The utility model relates to a novel temperature sensor connecting structure, and relates to the technical field of sensing devices, the novel temperature sensor connecting structure comprises a temperature resistor and a connecting wire, a connecting lead is led out from the temperature resistor, one end, far away from the temperature resistor, of the connecting lead is welded and fixed at the end part of the connecting wire, and the connecting lead is provided with a bending part; one end, far away from the temperature resistor, of the connecting lead is provided with a welding ring sleeved at the end part of the connecting lead, and the welding ring is welded and fixed on the connecting lead. The application has the effect that the temperature resistor and the connecting wire are not easy to disconnect.

Description

Technical Field

[0001] This application relates to the technical field of sensor devices, and particularly to a novel temperature sensor connection structure. Background Art

[0002] A temperature sensor is a common sensor device. A temperature sensor connection structure usually includes a temperature resistor, two connecting wires, and a packaging colloid. Two resistance wires are led out from the temperature resistor. Generally, the resistance wires are fixed at the ends of the connecting wires by spot welding. The connecting wires are used for electrical connection with a display terminal. When the external temperature changes, the resistance value of the temperature resistor changes, and the connecting wires serve as a current conduction medium, so that the magnitude of the current in the display terminal changes, and different temperature values are displayed accordingly.

[0003] Regarding the above related technologies, the inventor found the following defects: After the resistance wires of the temperature resistor are fixed to the ends of the connecting wires by spot welding, when the temperature resistor is subjected to stretching or other traction forces, the welding joints between the leads of the temperature resistor and the connecting wires are prone to breakage, resulting in the disconnection of the temperature resistor and the connecting wires and the damage of the temperature sensor. Summary of the Invention

[0004] In order to make it difficult for the temperature resistor and the connecting wires to be disconnected, this application provides a novel temperature sensor connection structure.

[0005] A novel temperature sensor connection structure provided by this application adopts the following technical solutions:

[0006] A novel temperature sensor connection structure includes a temperature resistor and connecting wires. Connection leads are led out from the temperature resistor. One end of the connection lead far from the temperature resistor is welded and fixed to the end of the connecting wire, and a bending portion is provided on the connection lead.

[0007] By adopting the above technical solutions, by providing the bending portion, when the temperature resistor or the connecting wires are stretched, the bending portion can undergo a certain degree of deformation to provide a deformation space, so that the welding joints are not easily broken or damaged.

[0008] Optionally, a welding ring sleeving the end of the connecting wire is provided at one end of the connection lead far from the temperature resistor, and the welding ring is welded and fixed to the connecting wire.

[0009] By adopting the above technical solutions, by providing the welding ring, the welding area is increased, so that the connection at the welding joint is more firm.

[0010] Optionally, the welding ring has a deformation notch, and the welding ring has elastic potential energy for clamping the connecting wire.

[0011] By adopting the above technical solution and setting a deformation notch, the welding ring has a certain elasticity, thereby clamping the connecting wire and pre-fixing the subsequent welding. At the same time, by setting the welding notch, the inner diameter of the welding ring can be deformed to a certain extent, thereby facilitating the sliding sleeve of the welding ring on the connecting wire.

[0012] Optionally, the welding ring has a protruding welding head, the welding ring has elastic potential energy for clamping the connecting wire, and the protruding welding head is welded to the connecting wire.

[0013] By adopting the above technical solution and providing a protruding welding head, the welding ring can elastically clamp the connecting wire. After welding is completed, the protruding welding head is welded to the connecting wire again to achieve secondary welding fixation.

[0014] Optionally, a molten ball bump is provided on the connecting wire, and when the molten ball bump is melted and shaped, the molten ball bump is used to prevent the welding ring from falling off the connecting wire.

[0015] By adopting the above technical solution and providing the pompom protrusions, when the temperature resistor is pulled, the pompom protrusions can prevent the welding ring from falling off from the end of the connecting wire.

[0016] Optionally, the curved portions are distributed in a spiral shape.

[0017] By adopting the above technical solution, the deformation of the bending portion is increased while the connecting lead has elastic potential energy to restore its original length.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] 1. By setting the bending part, when the temperature resistor or the connecting wire is stretched, the bending part can be deformed to a certain extent to provide deformation space, so that the welding part is not easy to be broken and damaged;

[0020] 2. By setting the welding ring, the welding area is increased, making the connection at the welding point more firm;

[0021] 3. By setting the deformation notch, the welding ring has a certain elasticity, so as to clamp the connecting wire and pre-fix the subsequent welding. At the same time, by setting the welding notch, the inner diameter of the welding ring can be deformed to a certain extent, so as to facilitate the sliding sleeve of the welding ring on the connecting wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the novel temperature sensor connection structure in Example 1 of the present application.

[0023] Figure 2It is a schematic diagram of the novel temperature sensor connection structure in Embodiment 2 of the present application.

[0024] Figure 3 It is a schematic diagram of the novel temperature sensor connection structure in Embodiment 3 of the present application.

[0025] Figure 4 It is a schematic diagram of the novel temperature sensor connection structure in Embodiment 4 of the present application.

[0026] Figure 5 It is a schematic diagram of the novel temperature sensor connection structure in Embodiment 5 of the present application.

[0027] Explanation of reference numerals: 1. Temperature resistor; 2. Connection wire; 21. Solder ball bump; 3. Connection lead; 31. Bending part; 32. Welding ring; 33. Deformation notch; 34. Protruding welding head. Detailed implementation manners

[0028] The following further Figures 1-5 describes the present application in detail.

[0029] The embodiment of the present application discloses a novel temperature sensor connection structure.

[0030] Referring to Figure 1 , the novel temperature sensor connection structure includes a temperature resistor 1 and a connection wire 2. A connection lead 3 is led out from the temperature resistor 1, and one end of the connection lead 3 far from the temperature resistor 1 is fixed to the end of the connection wire 2 by spot welding. A bending part 31 is provided on the connection lead 3. There are two connection leads 3 and two connection wires 2 in this embodiment. The end of the connection wire 2 far from the temperature resistor 1 is used to connect to the display terminal of the temperature sensor. When the external ambient temperature changes, the resistance value of the temperature resistor 1 changes, thereby causing the current in the circuit to change, and the temperature value displayed by the display terminal changes.

[0031] Embodiment 1:

[0032] In the traditional welding method, the connection wire 2 and the connection lead 3 are respectively placed on both sides of the welding point, and then fixed by spot welding.

[0033] In this embodiment, the connecting lead 3 and the connecting wire 2 are placed on the same side of the welding point, and then the ends of the connecting lead 3 and the connecting wire 2 are welded and fixed together by spot welding. After the spot welding is completed, the connecting lead 3 is folded over. At this time, the connecting lead 3 and the temperature resistor 1 are flipped to the other side of the welding point. At the same time, the connecting lead 3 is folded to form a bent portion 31. Due to the presence of the bent portion 31, when the temperature resistor 1 or the connecting wire 2 is stretched, the bent portion 31 can deform, providing a certain amount of clearance space for the relative position change between the connecting wire 2 and the temperature resistor 1, so that the connecting wire 2 is not easily disconnected from the temperature resistor 1.

[0034] Embodiment 2:

[0035] The connecting lead 3 itself has a bent portion 31. During welding, the connecting lead 3 and the connecting wire 2 can be respectively arranged on both sides of the welding point, and the connecting lead 3 does not need to be folded over after welding.

[0036] Embodiment 3:

[0037] The bent portion 31 on the connecting lead 3 is spiral, so as to provide a larger clearance space for the relative position change between the connecting wire 2 and the temperature resistor 1. Even in the case of excessive stretching, the connecting wire 2 is not easily disconnected from the temperature resistor 1. At the same time, since the bent portion 31 is spiral, when the bent portion 31 is stretched, the bent portion 31 has an elastic potential energy to restore its original length.

[0038] Embodiment 4:

[0039] A welding ring 32 sleeved on the connecting wire 2 is arranged at one end of the connecting lead 3 away from the temperature resistor 1. The welding ring 32 is integrally welded and fixed on the connecting wire 2. By increasing the welding area, the firmness between the connecting wire 2 and the connecting lead 3 is improved.

[0040] A deformation notch 33 is arranged on the welding ring 32, so that the welding ring 32 can deform to a certain extent, and its inner diameter size can change to a certain extent to facilitate the welding ring 32 to slip and sleeve on the end of the connecting wire 2. At the same time, the welding ring 32 can also tighten the connecting wire 2, facilitating the subsequent welding and fixing of the welding ring 32 and the connecting wire 2.

[0041] Embodiment 5:

[0042] The difference from Embodiment 4 is that a protruding welding head 34 is provided on the welding ring 32. At this time, the welding ring 32 can still deform to a certain extent so as to clamp the connecting wire 2. When welding the welding ring 32, the protruding welding head 34 is also welded and fixed on the connecting wire 2. At the same time, a molten ball bump 21 is provided at the end of the connecting wire 2. After the welding ring 32 is welded and fixed on the connecting wire 2, the molten ball bump 21 is melted at a high temperature by using an electric soldering iron, and then the molten ball bump 21 cools and solidifies into a spherical shape, preventing the welding ring 32 from falling off from the end of the connecting wire 2.

[0043] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A new type of temperature sensor connection structure, characterized in that: It includes a temperature resistor (1) and a connecting wire (2). A connecting lead (3) is led out from the temperature resistor (1). One end of the connecting lead (3) far from the temperature resistor (1) is welded and fixed to the end of the connecting wire (2). A bending part (31) is arranged on the connecting lead (3).

2. The novel temperature sensor connection structure according to claim 1, characterized in that: One end of the connecting lead (3) far from the temperature resistor (1) is provided with a welding ring (32) sleeved on the end of the connecting wire (2). The welding ring (32) is welded and fixed to the connecting wire (2).

3. The novel temperature sensor connection structure according to claim 2, wherein: The welding ring (32) has a deformation notch (33), and the welding ring (32) has elastic potential energy for clamping the connecting wire (2).

4. The novel temperature sensor connection structure according to claim 2, characterized in that: The welding ring (32) has a protruding welding head (34), and the welding ring (32) has elastic potential energy for clamping the connecting wire (2). The protruding welding head (34) is welded to the connecting wire (2).

5. The novel temperature sensor connection structure according to claim 2, characterized in that: A molten ball bump (21) is arranged on the connecting wire (2). After the molten ball bump (21) is melted and shaped, the molten ball bump (21) is used to prevent the welding ring (32) from falling off the connecting wire (2).

6. The novel temperature sensor connection structure according to claim 1, characterized in that: The bending part (31) is distributed in a spiral shape.

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