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KR-102962121-B1 - A temperature sensor device with head section enhanced waterproof

KR102962121B1KR 102962121 B1KR102962121 B1KR 102962121B1KR-102962121-B1

Abstract

The present invention relates to a temperature sensor device equipped with a head unit having enhanced waterproofing capabilities. In a state where a lead wire connected to a terminal of the head unit extends through the lead wire entry/exit port of the head unit to a temperature control unit located externally, moisture flowing in along the lead wire may enter the terminal located inside the head unit, thereby causing problems such as sensing errors. To minimize such problems such as sensing errors, the invention relates to a temperature sensor device equipped with a head unit capable of blocking the inflow of moisture.

Inventors

  • 김현철

Assignees

  • (주)센테크이엔지

Dates

Publication Date
20260507
Application Date
20250526

Claims (6)

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  4. Lead wire entry/exit port (110) formed in the head portion (100); A waterproof connector (120) having one side connected to the lead wire entry/exit (110); A nipple (140) coupled to the other side of the above waterproof connector (120); and The cable grip portion (150) is coupled to the nipple (140) while the end of the cable (160), through which the lead wire (101) penetrates inward, is fixed. A sealing ring (130) made of a flexible material is positioned between the waterproof connector (120) and the nipple (140), and The above waterproof connector (120) includes a second connector coupling part (126) that is coupled to the nipple (140), and The above nipple (140) includes a first nipple coupling part (142) to which the second connector coupling part (126) is coupled, and The second connector coupling part (126) is inserted into and coupled to the inner space of the first nipple coupling part (142), and The second connector coupling part (126) includes a connector outer slope part (126-2) formed such that the cross-sectional area gradually narrows as it goes in one direction. The cross-sectional area of the nipple inner space slope portion (142-2), which is a certain part of the inner space of the first nipple coupling portion (142), is formed to gradually narrow as it goes in one direction, and The lead wire (101) is penetrated into the inner side of the connector outer inclined portion (126-2), the inner side of the sealing ring (130), and the inner side of the nipple inner space inclined portion (142-2). With the sealing ring (130) positioned in the inner space of the first nipple coupling part (142), as the connector outer inclined part (126-2) is inserted into the nipple inner space inclined part (142-2), the sealing ring (130) is pushed into the narrowing space of the nipple inner space inclined part (142-2) while in close contact with the end of the connector outer inclined part (126-2), thereby compressing the sealing ring (130). A temperature sensor device in which the sealing ring (130) is pressed against the end of the connector outer inclined portion (126-2) and is in contact with the outer surface of the lead wire (101) and the inner surface of the narrowed space of the nipple inner space inclined portion (142-2).
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  6. Lead wire entry/exit port (110) formed in the head portion (100); A waterproof connector (120) having one side connected to the lead wire entry/exit (110); A nipple (140) coupled to the other side of the above waterproof connector (120); and The cable grip portion (150) is coupled to the nipple (140) while the end of the cable (160), through which the lead wire (101) penetrates inward, is fixed. A sealing ring (130) made of a flexible material is positioned between the waterproof connector (120) and the nipple (140), and The above waterproof connector (120) includes a second connector coupling part (126) that is coupled to the nipple (140), and The above nipple (140) includes a first nipple coupling part (142) to which the second connector coupling part (126) is coupled, and The first nipple coupling part (142) is inserted into and coupled to the inner space of the second connector coupling part (126), and The first nipple coupling portion (142) includes a nipple outer slope portion (142-4) formed such that the cross-sectional area gradually narrows as it goes in one direction. The cross-sectional area of the connector inner space slope portion (126-4), which is a certain part of the inner space of the second connector coupling portion (126), is formed to gradually narrow as it goes in one direction, and The lead wire (101) is penetrated into the inner side of the connector inner space inclined portion (126-4), the inner side of the sealing ring (130), and the inner side of the nipple outer inclined portion (142-4). With the sealing ring (130) positioned in the inner space of the second connector coupling part (126), as the nipple outer slope part (142-4) is inserted into the connector inner space slope part (126-4), the sealing ring (130) is compressed as it is pushed into the narrowing space of the connector inner space slope part (126-4) while in close contact with the end of the nipple outer slope part (142-4). A temperature sensor device in which the sealing ring (130) is pressed against the end of the nipple outer inclined portion (142-4) and is in contact with the outer surface of the lead wire (101) and the inner surface of the narrowed space of the connector inner space inclined portion (126-4).

Description

A temperature sensor device with a head section enhanced waterproof The present invention relates to a temperature sensor device equipped with a head unit having enhanced waterproofing capabilities. In a state where a lead wire connected to a terminal of the head unit extends through the lead wire entry/exit port of the head unit to a temperature control unit located externally, moisture flowing in along the lead wire may enter the terminal or circuit board located inside the head unit, thereby causing problems such as sensing errors. To minimize such problems such as sensing errors, the invention relates to a temperature sensor device equipped with a head unit capable of blocking the inflow of moisture. Generally, a temperature sensor may be configured such that an electrical signal corresponding to the temperature is generated through a sensor rod inserted into a temperature-sensing object, the electrical signal generated through the sensor rod is transmitted to a terminal or circuit board inside the head unit, and a lead wire connected to the terminal passes through a lead wire entry/exit port formed in the head unit and is connected to a temperature control unit located outside. Looking at the temperature sensor disclosed in Fig. 1 of the prior art Korean Utility Model Registration No. 20-0285966, a lead wire (20) extends outward from the inside of the head part (14) through the lead wire inlet (16). At this time, with the nipple (180) connected to the lead wire inlet (16), the lead wire extends outward by penetrating the lead wire inlet (160) and the nipple (180). Terminals or circuit boards to which lead wires are connected are located on the inside of the head unit. If moisture enters the inside of the head unit and comes into contact with these terminals or circuit boards, it may cause problems in the transmission of electrical signals generated by the sensor rod, resulting in sensing errors. When the externally extended lead wire extends to the terminal or circuit board on the inside of the head unit, such moisture can flow into the inside of the head unit along the externally located lead wire. In the temperature sensor disclosed in FIG. 1 of the prior art, moisture can flow in through the lead wires extended to the outside, and although the incoming moisture can cause problems with electrical signal transmission inside the head part, no technical feature is disclosed that can minimize the inflow of moisture. Therefore, there is an urgent need for research on technical features that can minimize the inflow of moisture into the interior of the head unit via the lead wire. FIG. 1 is a drawing illustrating a temperature sensor device according to the prior art. FIG. 2 is a drawing illustrating a temperature sensor device according to the present invention. FIGS. 3 and 4 illustrate an exploded perspective view and a cross-sectional view of the combined state according to a first embodiment of the present invention. FIGS. 5 and 6 illustrate an exploded perspective view and a cross-sectional view of the combined state according to a second embodiment of the present invention. Hereinafter, preferred embodiments according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of lines or the size of components depicted in the drawings may be exaggerated for clarity and convenience of explanation. Furthermore, the terms described below are defined considering their functions in the present invention, and these may vary depending on the intention or convention of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification. A temperature sensor device according to the present invention will be described with reference to FIG. 1. The temperature sensor device according to the present invention may include a sensor rod (105), a head portion (100) connected to the sensor rod (105), a lead wire inlet/outlet (110) formed on one side of the head portion (100), a waterproof connector (120) coupled to the lead wire inlet/outlet (110), a sealing ring (130), a nipple (140) coupled to the waterproof connector (120), a cable grip portion (150) coupled to the nipple (140), and a cable (160) through which the lead wire (101) penetrates inwardly. The lead wire extends from the inside of the sensor rod (105) to the inside of the head part (100), and then the lead wire (101) passes through the inside of the head part (100) to the lead wire entry/exit port (110) and extends to the outside to be connected to the temperature control unit. An electrical signal generated from the sensor rod (105) is transmitted to the temperature control unit through the lead wire (101). The lead wire (101) extending from the inner side of the head portion (100) can be extended to the inner side of the cable (160) by penetrating the inner side of the lead wire entry/exit (110), the inner side of the waterproof connector