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CN-224231108-U - Composite packaging structure of miniature temperature sensor

CN224231108UCN 224231108 UCN224231108 UCN 224231108UCN-224231108-U

Abstract

The utility model discloses a miniature temperature sensor composite packaging structure, which relates to the technical field of temperature sensors and comprises an outer shell, a support frame and packaging filler, wherein a filling opening is formed in the top of the outer shell, a sealing cover assembly is arranged in the filling opening, a temperature sensing element is arranged in the outer shell, the support frame is arranged on the periphery of the temperature sensing element and is fixed on the inner wall of the outer shell, the packaging filler is filled in the outer shell and is used for completely packaging the temperature sensing element, and the packaging filler is filled in a second positioning groove.

Inventors

  • YAN XIANGLIN
  • CHEN DAN
  • YANG LAN

Assignees

  • 深圳市立感科技有限公司

Dates

Publication Date
20260512
Application Date
20250716

Claims (8)

  1. 1. The utility model provides a miniature temperature sensor composite packaging structure which characterized in that includes: The device comprises an outer shell (1), wherein a filling opening (10) is formed in the top of the outer shell (1), a sealing cover assembly is arranged in the filling opening (10), and a temperature sensing element (8) is arranged in the outer shell (1); The support frame (7) is arranged on the periphery side of the temperature sensing element (8) and is fixed on the inner wall of the outer shell (1); And the packaging filler (5) is filled in the outer shell (1) and is used for completely wrapping the temperature sensing element (8) therein, and the packaging filler (5) is also filled in the second positioning groove (14).
  2. 2. The miniature temperature sensor composite packaging structure according to claim 1, wherein metal wires (6) are fixed at two ends of the bottom of the temperature sensing element (8), connection pins (4) are connected to the bottoms of the metal wires (6), two pin outlet holes (12) for the connection pins (4) to pass through are formed in the bottom of the outer shell (1), and a plurality of annular second positioning grooves (14) are formed in the tops of the outer walls of the connection pins (4).
  3. 3. The miniature temperature sensor composite packaging structure according to claim 2, wherein connection jacks (15) into which the metal wires (6) are inserted are respectively formed at the tops of the connection pins (4), and the inner diameters of the connection jacks (15) are matched with the outer diameters of the metal wires (6).
  4. 4. A micro temperature sensor composite package according to claim 3, wherein the part of the surface of the connection pin (4) extending out of the outer housing (1) is provided with a gold plating layer (16).
  5. 5. The miniature temperature sensor composite packaging structure according to claim 1, wherein the sealing cover assembly comprises a filling opening (10) formed in the top of the outer shell body (1) and used for allowing a temperature sensing element (8) to be inserted, a sealing groove (11) is formed in the top of the filling opening (10), the inner wall of the sealing groove (11) and the inner wall of the filling opening (10) are inserted with a packaging cover (3), the size of the peripheral outer wall of the packaging cover (3) is smaller than that of the peripheral inner wall of the filling opening (10), packaging filler (5) is filled into a gap between the peripheral outer wall of the packaging cover (3) and the peripheral inner wall of the filling opening (10), a square first positioning groove (13) is formed in the bottom of the peripheral outer wall of the packaging cover (3), and the packaging filler (5) is also filled into the first positioning groove (13).
  6. 6. The composite packaging structure of a miniature temperature sensor according to claim 5, characterized in that the packaging cover (3) is designed to be hollow.
  7. 7. The miniature temperature sensor composite packaging structure according to claim 1, wherein heat dissipation grooves (2) distributed equidistantly are formed in the peripheral outer walls of the outer shell (1), the heat dissipation grooves (2) are square, and the positions of the heat dissipation grooves (2) correspond to the positions of the temperature sensing elements (8).
  8. 8. The miniature temperature sensor composite packaging structure according to claim 7, wherein reinforcing ribs (9) distributed equidistantly are fixed on the inner walls of the periphery of the outer shell (1), the positions of the reinforcing ribs (9) correspond to the positions of the heat dissipation grooves (2), and the reinforcing ribs (9) and the outer shell (1) are integrally formed.

Description

Composite packaging structure of miniature temperature sensor Technical Field The utility model relates to the technical field of temperature sensors, in particular to a composite packaging structure of a miniature temperature sensor. Background The miniature temperature sensor is a device which has small size, can sense and measure temperature change and convert temperature information into an output signal, is generally made of a silicon semiconductor material, has wide application in various fields, and can be used for accurately measuring the human body temperature by medical equipment, monitoring the temperature of the equipment in real time in industrial production, controlling the temperature of a chip in electronic equipment and the like. At present, the packaging structure is used for packaging the temperature sensing element, so that requirements can be provided on physical protection, environmental isolation, insulation safety and the like, however, when the temperature sensing element is packaged, the connecting pins of the temperature sensing element are required to be led out of the packaging structure, the traditional connecting pins and the temperature sensing element are fixed in a welding mode, the temperature, the time and the welding position are required to be precisely controlled in the welding process, the requirements on the skills of operators are high, and the cost of welding equipment is relatively high, so that the production process is complex, and therefore, the design of the miniature temperature sensor composite packaging structure is needed to solve the problems. Disclosure of utility model The utility model aims to solve the defects in the prior art and provides a composite packaging structure of a miniature temperature sensor. The packaging filler and the connecting pins form a mechanical engagement structure, so that the connecting pins are effectively prevented from loosening or falling off in the use process. In order to achieve the above purpose, the present utility model adopts the following technical scheme: a miniature temperature sensor composite package structure, comprising: The top of the outer shell is provided with a filling opening, a sealing cover assembly is arranged in the filling opening, and the temperature sensing element is arranged in the outer shell; A support frame which is arranged on the periphery side of the temperature sensing element and is fixed on the inner wall of the outer shell; And the packaging filler is filled in the outer shell and is used for completely wrapping the temperature sensing element, and the packaging filler is also filled in the second positioning groove. According to the technical scheme, the packaging filler and the connecting pins form a mechanical engagement structure, so that the connecting pins are effectively prevented from loosening or falling off in the use process, the stability of the whole structure is improved, stable connection of the packaging filler and the connecting pins can be realized without welding, and the production flow is simplified. The utility model is further arranged that the two ends of the bottom of the temperature sensing element are both fixedly provided with metal wires, the bottoms of the metal wires are both connected with connecting pins, two pin outlet holes for the connecting pins to pass through are formed in the bottom of the outer shell, and a plurality of annular second positioning grooves are formed in the tops of the outer walls of the connecting pins. Through the technical scheme, the stability of the connecting pin is ensured through the clamping effect of the plugging filler and the second positioning groove. The utility model is further arranged that the tops of the connecting pins are respectively provided with a connecting jack for inserting the metal wires, and the inner diameter of the connecting jacks is matched with the outer diameter of the metal wires. Through the technical scheme, the connection pin is convenient to connect with the metal wire. The utility model is further arranged that the part of the surface of the connecting pin extending out of the outer shell is provided with a gold plating layer. Through the technical scheme, the connecting pin has better corrosion resistance and conductivity, and the service life is prolonged. The sealing cover assembly comprises a filling opening formed in the top of the outer shell body and used for inserting the temperature sensing element, a sealing groove is formed in the top of the filling opening, the inner wall of the sealing groove and the inner wall of the filling opening are inserted with sealing covers, the size of the outer walls around the sealing covers is smaller than that of the inner walls around the filling opening, sealing fillers are filled in gaps between the outer walls around the sealing covers and the inner walls around the filling opening, square first positioning grooves are formed in the bottoms o