CN213748820U - Stably-connected temperature sensor - Google Patents
Stably-connected temperature sensor Download PDFInfo
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- CN213748820U CN213748820U CN202023145958.XU CN202023145958U CN213748820U CN 213748820 U CN213748820 U CN 213748820U CN 202023145958 U CN202023145958 U CN 202023145958U CN 213748820 U CN213748820 U CN 213748820U
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- thermosensitive element
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- temperature sensor
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Abstract
The utility model relates to a sensor field indicates a stably connected temperature sensor especially. In the application, the connection end part of the thermosensitive element is electrically conducted with the wire through the connection terminal; that is, the connection terminal and the connection end portion of the thermosensitive element and the contact portion of the wire can be protected by argon-fluorine welding, and the connection stability between the connection terminal and the thermosensitive element and the contact portion of the wire can be enhanced. The temperature sensor of this application of event through connecting terminal and argon fluorine welding, for the double-deck guarantee that thermistor and wire rod provide and be connected, connection stability is high under the high temperature, reaches guarantee resistance and connection of electric lines and switches on stability. The connection conduction stability is high, the connection effect at high temperature can be guaranteed, and the hidden danger that the sensor generates connection resistivity due to expansion with heat and contraction with cold at high temperature is thoroughly solved. And finally, the quality of the sensor is improved.
Description
Technical Field
The utility model relates to a sensor field indicates a stably connected temperature sensor especially.
Background
A temperature sensor is a sensor that senses temperature and converts it into a usable output signal. The temperature sensor is the core part of the temperature measuring instrument and has a plurality of varieties. The measurement method can be divided into a contact type and a non-contact type, and the measurement method can be divided into a thermal resistor and a thermocouple according to the characteristics of sensor materials and electronic elements.
The current temperature sensor chip connection mode mostly adopts a welding process, and the connection stability of a single welding process corresponding to the temperature sensor is weaker, as follows:
1) the pure welding process is easy to cause insufficient welding, disconnection of welding points, protrusion, tin connection, core wire explosion and the like, and the risks are all borne by the welding process;
2) the pure tin welding process can only bear the temperature resistance below 200 ℃;
disclosure of Invention
In order to solve the problem, the utility model provides a temperature sensor of stable connection through connecting terminal and argon fluorine welding, for the double-deck guarantee that thermal element and wire rod provide and be connected, connection stability is high under the high temperature, reaches guarantee resistance and connection of electric lines switch on stability.
In order to achieve the above object, the utility model adopts the following technical scheme: a stably-connected temperature sensor comprises a connecting terminal, a thermosensitive element and wires, wherein two connecting end parts of the thermosensitive element are respectively connected with the two wires, the connecting terminal sleeves the connecting end part of the thermosensitive element with the wires, and the electric conduction between the connecting end part of the thermosensitive element and the wires is realized; and the connection terminal is welded with the connection end of the thermosensitive element and the contact part of the wire by argon-fluorine welding.
Further, the thermosensitive element is an NTC or thermocouple or PT platinum resistor.
Furthermore, the cross section of the connecting terminal is of a mushroom-shaped structure, and the connecting terminal comprises a hemispherical top block and a sleeve connected to the bottom surface of the top block; wherein the sleeve is provided with a conduction cavity for wrapping the connecting end part of the thermosensitive element and the wire.
Furthermore, the through cavity is filled with hot-melt welding materials.
Furthermore, the connecting end part of the thermosensitive element comprises a first horizontal end, an inclined end and a second horizontal end positioned below the first horizontal end, wherein one end of the inclined end is connected with the first horizontal end, the other end of the inclined end is connected with the second horizontal end, and the inclined end inclines downwards from the first horizontal end to the second horizontal end.
The beneficial effects of the utility model reside in that: the connecting terminal is used for realizing the electrical conduction between the connecting end part of the thermosensitive element and the wire; that is, the connection terminal and the connection end portion of the thermosensitive element and the contact portion of the wire can be protected by argon-fluorine welding, and the connection stability between the connection terminal and the thermosensitive element and the contact portion of the wire can be enhanced. The temperature sensor of stable connection of event this application through connecting terminal and argon fluorine welding, for the double-deck guarantee that thermal element and wire rod provide and be connected, connection stability is high under high temperature, reaches guarantee resistance and connection of electric lines and switches on stability.
Drawings
Fig. 1 is a schematic structural diagram of the present application.
Fig. 2 is a schematic view of the structure of the connection terminal.
The reference numbers illustrate: the connecting structure comprises a thermosensitive element 1, a connecting end part 11, a first horizontal end 111, an inclined end 112, a second horizontal end 113, a wire 2, a connecting terminal 3, a top block 31, a sleeve 32 and a conducting cavity 33.
Detailed Description
Referring to fig. 1-2, the present invention relates to a stable-connection temperature sensor, which includes a connection terminal 3, a thermal sensitive element 1, and wires 2, wherein two connection ends 11 of the thermal sensitive element 1 are respectively connected to the two wires 2, and the connection terminal 3 connects the connection end 11 of the thermal sensitive element 1 to the wires 2, and realizes electrical connection between the connection end 11 of the thermal sensitive element 1 and the wires 2; and the contact portion of the connection terminal 3 with the connection end portion 11 of the thermosensitive element 1, the wire 2 is welded by argon fluorine.
In the present application, first, the connection terminal 3 is used to electrically connect the connection end 11 of the thermistor 1 with the wire 2; that is, the connection stability between the connection terminal 3 and the connection end 11 of the thermistor 1 and the contact portion of the wire 2 can be enhanced by argon-fluorine welding. The temperature sensor of stable connection of event this application through connecting terminal 3 and argon fluorine welding, for the double-deck guarantee that thermistor 1 and wire rod 2 provided being connected, connection stability is high under the high temperature, reaches guarantee resistance and connection of electric lines and switches on stability.
Further, the thermistor 1 is an NTC or thermocouple or PT platinum resistor.
Further, the cross section of the connecting terminal 3 is of a mushroom-shaped structure, and the connecting terminal comprises a hemispherical top block 31 and a sleeve 32 connected to the bottom surface of the top block 31; wherein the sleeve 32 is provided with a conducting cavity 33 which encloses the connection end 11 of the thermal element 1 and the wire 2. The conduction cavity 33 is filled with a hot-melt welding material. The sleeve 32 of the connecting terminal 3, the connecting end 11 of the thermosensitive element 1 and the wire 2 are in a pressing state, namely, the electric communication between the two is ensured, and in addition, argon-fluorine welding is adopted in the application, so that the hot-melt welding material can be filled into the conducting cavity 33, and the connection stability between the two can be further improved;
further, the connecting end portion 11 of the thermal element 1 includes a first horizontal end 111, an inclined end 112, and a second horizontal end 113 located below the first horizontal end 111, wherein one end of the inclined end 112 is connected to the first horizontal end 111, the other end of the inclined end 112 is connected to the second horizontal end 113, and the inclined end 112 is inclined downward from the first horizontal end 111 to the second horizontal end 113. Since the heat-sensitive element 1 is generally placed on the wire 2, wherein the inclined end 112 is designed to be inclined downward from the first horizontal end 111 to the second horizontal end 113, it is possible to facilitate a part of the second horizontal section to penetrate into the inside of the connection terminal 3 and to achieve conduction with the wire 2.
Therefore, the connection conduction stability is high, the connection effect at high temperature can be guaranteed, and the hidden danger that the sensor generates connection resistivity due to expansion with heat and contraction with cold at high temperature is thoroughly solved. And finally, the quality of the sensor is improved.
The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.
Claims (5)
1. A temperature sensor, characterized by: the connecting terminal is used for sleeving the connecting end part of the thermosensitive element with the wire rod and realizing the electrical conduction between the connecting end part of the thermosensitive element and the wire rod; and the connection terminal is welded with the connection end of the thermosensitive element and the contact part of the wire by argon-fluorine welding.
2. A temperature sensor according to claim 1, wherein: the thermosensitive element is NTC or thermocouple or PT platinum resistor.
3. A temperature sensor according to claim 1, wherein: the cross section of the connecting terminal is of a mushroom-shaped structure, and the connecting terminal comprises a hemispherical top block and a sleeve connected to the bottom surface of the top block; wherein the sleeve is provided with a conduction cavity for wrapping the connecting end part of the thermosensitive element and the wire.
4. A temperature sensor according to claim 3, wherein: and the conduction cavity is filled with hot-melt welding materials.
5. A temperature sensor according to claim 1, wherein: the connecting end part of the thermosensitive element comprises a first horizontal end, an inclined end and a second horizontal end positioned below the first horizontal end, wherein one end of the inclined end is connected with the first horizontal end, the other end of the inclined end is connected with the second horizontal end, and the inclined end inclines downwards from the first horizontal end to the second horizontal end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023145958.XU CN213748820U (en) | 2020-12-23 | 2020-12-23 | Stably-connected temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023145958.XU CN213748820U (en) | 2020-12-23 | 2020-12-23 | Stably-connected temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213748820U true CN213748820U (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023145958.XU Active CN213748820U (en) | 2020-12-23 | 2020-12-23 | Stably-connected temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213748820U (en) |
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2020
- 2020-12-23 CN CN202023145958.XU patent/CN213748820U/en active Active
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