KR-102961204-B1 - PRESSURE RESISTANT EXPLOSION PROOF TEMPERATURE SENSOR

Abstract

A pressure-resistant explosion-proof temperature sensor according to one embodiment of the present invention comprises a pressure-resistant housing having an internal space defined and a connector to which a temperature sensor is coupled, the upper surface of which is open, a housing cover coupled to the open surface of the pressure-resistant housing to seal the internal space, and a temperature sensor coupled to the connector to extend in one direction and measure temperature, wherein the pressure-resistant housing may include a reinforcing portion protruding inwardly from the portion of the inner surface of the pressure-resistant housing that contacts the housing cover. [Ministry Name] Ministry of SMEs and Startups [Name of Project Management Agency] Jeonnam Technopark [Research Project Name] Regional Specialized Industry Development Project (Non-R&D) Regional Key Industry Development (Regional Specialization Project 2.0) Support Project [Research Project Title] Production of a Prototype for a Pressure-Resistant Explosion-Proof Temperature Sensor and Application for Related Technology Patent [Name of Project Performing Organization] Hyupsung Hisco Co., Ltd. [Research Period] May 1, 2025 – October 31, 2025

Inventors

• 양지수
• 정기호

Assignees

• 주식회사 협성히스코

Dates

Publication Date

20260507

Application Date

20251016

Claims (8)

1. A pressure housing having an internal space defined and a connector to which a temperature sensor is coupled, with one side of the upper surface open; A housing cover coupled to the open one surface of the above-mentioned pressure housing to seal the internal space; and It includes a temperature sensor that is coupled to the above connector, extends in one direction, and measures temperature, The above pressure housing includes a reinforcing member protruding inwardly from the portion of the inner surface of the pressure housing where the housing cover contacts, and The above reinforcing part has a protrusion length that increases as it moves upward, and has a curved shape with a predetermined curvature in a planar plane, and The above pressure housing is, A housing body having an internal space defined and a protruding connecting portion to which the housing cover is joined; A first connecting part protruding laterally from the side of the housing body and having a second connecting hole defined therein; A second connecting part extending in the unidirectional direction from the housing body and having the connecting hole defined therein; and It includes a terminal block disposed in the internal space and connected to the wire to the temperature sensor, The above-mentioned connecting portion is inclined downward from one end adjacent to and non-overlapping with the second connecting portion toward the other end, and The above reinforcing member is positioned adjacent to the other end of the above-mentioned joint part, and The above-mentioned pressure housing further includes side reinforcing members protruding inward from both sides of the housing body, and The above terminal block is, A block body having a fixing part for fixing the wire attached to the upper part, disposed in the internal space, and having a through hole defined through which the wire passes; and It includes a block extension extending from the center of the block body toward the temperature sensor, The interior of the above block extension is filled with epoxy, and The above housing cover is, Cover body with a defined joint space; A reinforcing wall protruding toward the center from the side of the above-mentioned cover body; A first reinforcing coupling portion protruding upwardly from the lower surface of the above-mentioned cover body and positioned in the center; A second reinforcing coupling portion protruding upward from the lower surface of the cover body and surrounding the first reinforcing coupling portion; and It includes reinforcing ribs that connect the first reinforcing joint and the second reinforcing joint or connect the second reinforcing joint and the reinforcing wall, The above housing body is, A first housing bulkhead positioned at the outermost edge; A second housing partition disposed inside the first housing partition and spaced apart from the first housing partition by a predetermined distance; and It includes an elastic material disposed between the first housing bulkhead and the second housing bulkhead, Pressure distribution portions are defined on the outer surface of the second housing bulkhead, spaced apart from each other by a predetermined interval and protruding toward the elastic material. The above housing cover is, Auxiliary ribs arranged in a closed curve shape, connecting the reinforcing ribs disposed between the first reinforcing joint and the second reinforcing joint; A heat dissipation reinforcing member extending from the auxiliary rib toward the reinforcing wall and comprising a thermally conductive material that distributes heat in the internal space; and It further includes a contact joint that is joined between the reinforcing rib and the reinforcing wall and has a planar thickness that increases as it approaches the reinforcing wall, and The above heat dispersion reinforcing members are provided in multiple numbers, and In the portion corresponding to the plurality of heat dissipation reinforcing members on one side of the housing cover, a spaced groove is defined that is recessed outwardly and has a constant width, and The above heat dispersion reinforcement is, A first heat-dispersing reinforcing member extending in a straight line from the auxiliary rib toward the reinforcing wall and maintaining a constant width; and It includes a second heat dispersion reinforcing member spaced apart from the first heat dispersion reinforcing member with the above-mentioned spacing groove in between, One side of the second heat dispersion reinforcing member adjacent to the first heat dispersion reinforcing member extends parallel to one side of the first heat dispersion reinforcing member, and A pressure-resistant explosion-proof temperature sensor in which the outer edge of the second heat-dispersing reinforcement part, which is far from the first heat-dispersing reinforcement part, is far from the outer edge and can be extended toward the reinforcement wall.
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Description

Pressure-Resistant Explosion-Proof Temperature Sensor The present invention relates to a temperature sensor for explosion-proof pressure, and more specifically, to a temperature sensor with a metal housing and precision machining applied to prevent internal explosions from spreading to the outside. At the current level of technology, there is a demand for temperature sensors designed to withstand internal explosion pressures and prevent the spread of flames to the outside. These sensors are primarily used in hazardous environments and must operate reliably even in locations with a high risk of explosion. While existing temperature sensors are generally designed with an emphasis on temperature measurement accuracy and durability, they have limitations in simultaneously satisfying explosion prevention and flame spread prevention functions. In particular, there is a lack of structural designs capable of effectively blocking the spread of flames to the outside while maintaining stability in high-temperature and high-pressure environments. One of the major problems with currently used temperature sensors is their insufficient resistance to internal explosion pressure. Internal pressure that can occur in explosive environments can cause structural damage to the sensor, increasing the risk of flames spreading outward. Existing sensor designs often fail to adequately account for resistance to such pressure, resulting in inadequate explosion protection performance. Furthermore, there are frequent instances where the sensor's external material or sealing structure fails to completely block flame spread. FIG. 1a is a photograph of a pressure-resistant explosion-proof temperature sensor according to one embodiment of the present invention. FIG. 1b is a photograph of a pressure-resistant explosion-proof temperature sensor according to one embodiment of the present invention. FIG. 1c is a photograph of a pressure-resistant explosion-proof temperature sensor according to one embodiment of the present invention. FIG. 2 is a cross-sectional view and a front view of a pressure-resistant explosion-proof temperature sensor according to one embodiment of the present invention. FIG. 3 is a cross-sectional view of a terminal block and a fixing part according to one embodiment of the present invention. Figure 4 is a cross-sectional view along A-A' of Figure 3. FIG. 5 is a perspective view of a pressure-resistant housing and a housing cover according to one embodiment of the present invention. FIG. 6 is a perspective view of a pressure-resistant housing and a housing cover according to one embodiment of the present invention. FIG. 7 is a perspective view of a pressure-resistant housing and a housing cover according to one embodiment of the present invention. FIG. 8 is a perspective view of a housing cover according to one embodiment of the present invention. FIG. 9 is a plan view of a housing cover according to one embodiment of the present invention. To fully understand the structure and effects of the present invention, preferred embodiments of the present invention are described with reference to the attached drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various forms and various modifications can be made. The description of the embodiments is provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention. In the attached drawings, the components are depicted enlarged from their actual size for convenience of explanation, and the proportions of each component may be exaggerated or reduced. Where a component is described as being "on" or "in contact" with another component, it should be understood that while it may be directly touching or connected to the other component, there may also be another component in between. On the other hand, where a component is described as being "immediately on" or "in contact" with another component, it should be understood that there is no other component in between. Other expressions describing the relationship between components, such as "between" and "directly between," can be interpreted in the same way. Terms such as "first," "second," etc., may be used to describe various components, but said components shall not be limited by said terms. Such terms may be used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. A singular expression includes a plural expression unless the context clearly indicates otherwise. Terms such as "comprising" or "having" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and may be inter