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CN-224216186-U - NTC temperature sensor

CN224216186UCN 224216186 UCN224216186 UCN 224216186UCN-224216186-U

Abstract

The utility model discloses an NTC temperature sensor, and belongs to the field of temperature sensors. The utility model relates to an NTC temperature sensor, which comprises a temperature sensing component, wherein the temperature sensing component is connected with one end of a transmission wire through a Dumet wire, the outer surface of the temperature sensing component is connected with a packaging material, the other end of the transmission wire is connected with an inserting component, the tail end of the inserting component is provided with an inserting terminal part, the packaging material comprises a core packaging waterproof combination layer, a polymer attaching layer and a sleeve protecting piece layer which are arranged on the outer surface of the temperature sensing component, and the stability of the connecting area of the inserting component and a vehicle main control component can be improved to prevent disconnection through the optimal design of the inserting component, so that the connecting part of the inserting component and an automobile main control system has good anti-seismic performance, poor contact and good temperature sensing signal transmission stability.

Inventors

  • LIU BIN
  • WANG TIANJUN
  • DU YE
  • PENG CHAO
  • SONG YITING
  • WU FEI

Assignees

  • 深圳汇北川科技股份有限公司

Dates

Publication Date
20260508
Application Date
20250813

Claims (10)

  1. 1. The utility model provides a NTC temperature sensor, includes temperature sensing subassembly (1), temperature sensing subassembly (1) is connected with the one end of transmission wire (2) through dumet wire, temperature sensing subassembly (1) is even equipped with encapsulation material (3) with the surface of dumet wire connection zone bit, the other end of transmission wire (2) is even to have and inserts and link subassembly (12), and the end of inserting and linking subassembly (12) has plug terminal portion (4), encapsulation material (3) are including establishing core encapsulation waterproof combination layer (5) at temperature sensing subassembly (1) and dumet wire connection zone bit surface, encapsulation material (3) still include polymer attached layer (6) of establishing at core encapsulation waterproof combination layer (5) surface, the polymer attached layer (6) of dumet wire external surface to and the polymer attached layer (6) of dumet wire and transmission wire (2) link surface, the outside cover of polymer attached layer (6) is equipped with sleeve pipe protection piece layer (7), its characterized in that still includes: A sealing piece (8), wherein the sealing piece (8) is arranged at the outer side of the joint of the plug-in connection assembly (12) and the transmission wire (2), The plug-in connection assembly (12) is formed by sequentially connecting four parts of a laterally turnover connector (9), a connector (10), a plug-in card (11) and a plug-in terminal part (4) from front to back, The foldable joint piece (9) can be folded and held and connected with the outer side of the sealing piece (8), One end of the connecting piece (10) is connected with the connector piece (9), the other end of the connecting piece (10) is connected with the card inserting piece (11), The tail end of the card inserting piece (11) is connected with a plug-in terminal part (4) with a smooth outer side surface.
  2. 2. An NTC temperature sensor according to claim 1, characterized in that the sealing member (8) has a through hole in the middle, the transmission wire (2) is connected to the connector (10) in the plug assembly (12) through the through hole in the sealing member (8), The sealing piece (8) is formed by combining a rubber sleeve gasket (13), an annular sealing part (14) and a sleeve limiting series connection part (15), the annular sealing part (14) is connected to the outer surface of the rubber sleeve gasket (13), the sleeve limiting series connection part (15) is connected with the rubber sleeve gasket (13) into a whole, and the sleeve limiting series connection part (15) is positioned at the tail end of the rubber sleeve gasket (13).
  3. 3. The NTC temperature sensor according to claim 2, wherein the transmission wire (2) is penetrated in the sleeve-limiting serial connection part (15), and the outer surface of the sleeve-limiting serial connection part (15) is tightly connected with the plug-in connection assembly (12) in a folding way through the laterally turnover joint piece (9); The annular sealing part (14) is a hollow cone.
  4. 4. An NTC temperature sensor according to claim 3, characterized in that the inside of the joint member (9) is provided with a serration body (20).
  5. 5. NTC temperature sensor according to claim 1, characterized in that the two sides of the connecting piece (10) are connected with foldable semicircular metal sheets which can be tightly connected with the metal wire folds in the transmission wire (2).
  6. 6. NTC temperature sensor according to claim 5, characterized in that the inner side of the semicircular metal sheet is provided with a ring of teeth (19).
  7. 7. The NTC temperature sensor according to claim 1, characterized in that the card inserting member (11) comprises a rectangular card block (16) connected with the connecting member (10), and elastic pieces (17) are symmetrically connected to both sides of the rectangular card block (16).
  8. 8. The NTC temperature sensor according to claim 7, characterized in that the outer side of the rectangular clamping block (16) is perforated, and the elastic sheet (17) is connected with a triangular frame (18).
  9. 9. The NTC temperature sensor according to claim 1, characterized in that the plug-in terminal part (4) is a sheet-like body having a certain length and a smooth surface, the end of the sheet-like body being provided with a trapezoid slope area; The flaky body is in a connected H shape.
  10. 10. An NTC temperature sensor according to claim 1, characterized in that the polymer attachment layer (6) can be replaced by a teflon member (21).

Description

NTC temperature sensor Technical Field The utility model relates to the technical field of temperature sensors, in particular to an NTC temperature sensor. Background The NTC temperature sensor is a thermistor whose resistance value decreases with an increase in temperature. At present, the NTC temperature sensor is widely applied to corresponding components of an electric control system of a motor and a new energy automobile, the resistance value of a heat sensitive ceramic core in the NTC temperature sensor can be rapidly reduced along with the temperature rise, the environment temperature of the heat sensitive ceramic core of the NTC temperature sensor can be reversely deduced by measuring the resistance value of the heat sensitive ceramic core in the NTC temperature sensor and applying corresponding formulas such as ohm law and the like, so that the temperature of the corresponding components of the motor or the automobile electric control system can be monitored in real time, and the faults of the motor or the automobile electric control system caused by unreasonable temperature are reduced. The existing NTC temperature sensor has the defects that the joint of the sensor and the automobile master control system is poor in waterproof and dustproof performance and easy to disconnect when in use, and sometimes poor contact occurs between the tail end of the plug connector and the joint of the master control system, so that the stability of a transmission sensing signal is poor. Disclosure of utility model The utility model aims to solve the problems existing in the use of the traditional NTC temperature sensor, and provides the NTC temperature sensor. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides a NTC temperature sensor, includes the temperature sensing subassembly, the temperature sensing subassembly passes through the Dumet wire and is connected with one end of transmission wire, the outer surface of temperature sensing subassembly and Dumet wire connection zone position links to have the packaging material, the other end of transmission wire links to have to insert and links the subassembly, inserts the end of linking the subassembly and has the grafting terminal portion, the packaging material is including establishing the waterproof assembled layer of core encapsulation at temperature sensing subassembly and Dumet wire connection zone position surface, the packaging material still includes the polymer that establishes at the outer surface of the waterproof assembled layer of core encapsulation and pastes even layer, the polymer that Dumet wire outside surface pastes even layer to and the polymer that Dumet wire and transmission wire link surface paste even layer, the outside cover of polymer pastes even layer is equipped with the cover pipe protector layer, still includes: a sealing piece which is arranged outside the connection part of the plug-in connection assembly and the transmission wire, The plug-in connection assembly is formed by sequentially connecting four parts of a laterally turnover joint piece, a connecting piece, a plug-in card piece and a plug-in terminal part from front to back, The foldable joint piece can be folded and embraced and connected to the outer side of the sealing plug piece, One end of the connecting piece is connected with the connector, the other end of the connecting piece is connected with the card inserting piece, The tail end of the card inserting piece is connected with a plug-in terminal part with a smooth outer side surface. Further, a through hole is arranged in the middle of the sealing element, a transmission wire passes through the through hole on the sealing element and is connected with a connecting element in the plug-in assembly, The sealing piece is formed by combining a rubber sleeve gasket, an annular sealing part and a limiting sleeve serial connection part, the annular sealing part is connected to the outer surface of the rubber sleeve gasket, the limiting sleeve serial connection part is connected with the rubber sleeve gasket into a whole, and the limiting sleeve serial connection part is positioned at the tail end of the rubber sleeve gasket. Preferably, the transmission wire is penetrated in the sleeve-limiting serial connection part, and the outer surface of the sleeve-limiting serial connection part can be tightly connected with the plug-in assembly in a folding way through a laterally turnover joint piece; The annular blocking portion can be a hollow cone. Preferably, the inner side of the joint piece is provided with a saw tooth body. Further, two sides of the connecting piece are connected with foldable semicircular metal sheets, and the semicircular metal sheets can be tightly connected with metal wires in the transmission wires in a folded and pressed mode. Preferably, the inner side of the semicircular metal sheet is provided with a tooth ring body. Fu