KR101969460B1 - Sensor apparatus - Google Patents

Abstract

The present invention is a sensor device. The housing 10 forms an outer appearance of the sensor device. Inside the housing 10, there is an internal space 12 in which a sensing element 26 is located. The inner space (12) is shielded by a cover (30). Leg holes 24 are formed in the housing 10 so that the cover 30 is fastened to the housing 10. The fastening legs 42 of the cover 30 are hooked on the latching jaws inside the leg holes 24. A sensing path 36 is formed to directly communicate with the inner space 12. The sensing path 36 extends to the inside of the sensing protrusion 34 protruding from the outer surface of the cover 30. [ A plurality of sensing inlets 38, which are the entrance of the sensing path 36, are formed outside the tip of the sensing protrusion 34. The sensing projection 34 has a tongue-fixing part 41 on the outer surface thereof, so that the sensor device can assemble to the fixing part 50 during the mounting operation. In the sensing path 36, a slope 40 is formed at a portion corresponding to the sensing protrusion 34 to discharge moisture formed in the sensing path 36 to the outside. According to the present invention as described above, the configuration of the sensor device is simplified and the physical quantity can be measured more sensitively.

Description

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a sensor device, and more particularly, to a sensor device having a sensing element therein and capable of measuring a predetermined physical quantity.

With the development of the Internet of things, it has become necessary to measure various physical quantities such as temperature, pressure, humidity, and illumination. In order to measure these physical quantities, the physical quantity must be accurately transmitted to the sensing element inside the housing of the sensor device.

Generally, a sensor device is provided with a sensing element or the like in an inner space so that an inner space of a housing is shielded by a cover, and an environment of a desired external space is transmitted to an inner space having the sensing element through a sensing path.

Generally, in the conventional sensor device, the inlet of the sensing path for communicating the outside with the inner space of the housing is opened in one direction, and is not transmitted to the sensing element in the inner space of the housing relatively quickly.

When moisture is generated in the sensing path, it is preferable that the sensing device is smoothly discharged to the outside of the sensing path. However, in the conventional sensor device, moisture may advance toward the inlet of the sensing path, There is a problem that the sensing element is damaged by moisture.

In addition, when the conventional sensor device is mounted at the mounting position, there is no temporary fixing structure, which is inconvenient for the operator to hold the machine tool with one hand while simultaneously holding the fastener and the sensor device with the other hand.

In the conventional sensor device, a sensing element is mounted on a printed circuit board, and a terminal of a connector portion is provided to perform an electrical connection with the outside. Therefore, The number of processes in the manufacturing process is increased.

Japanese Patent Laid-Open No. 1997-257826 Korean Patent No. 10-1633275 Korean Patent Publication No. 10-2013-0106090

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a sensing path in the sensor device so that the inside and the outside of the housing communicate with each other through various paths.

Another object of the present invention is to allow the moisture produced on the sensing path to be smoothly discharged to the outside.

It is still another object of the present invention to make it possible to temporarily fix the sensor device when the sensor device is mounted in a fixed position.

It is another object of the present invention to electrically connect the sensing element and the terminal directly in the sensor device.

According to an aspect of the present invention for achieving the above object, there is provided an electronic device comprising: a housing having an internal space in which an internal space in which a sensing element is located is formed, and a terminal formed on one side of the housing, And a cover which is formed on the outer surface of the sensing protrusion and includes a sensing path for communicating the inner space with the outside and is coupled to the housing to shield the inner space And a sensing protrusion is formed on an outer surface of the sensing protrusion so as to fix the housing to the fixing portion, and the sensing protrusion is formed on both sides of the housing, Wherein a mounting bracket through which a fastening hole penetrates is integrally formed, and a fastening hole penetrates through the fastening hole, And it is firmly fixed to the government.

An inclined surface is formed in the sensing path so as to be inclined toward the sensing opening.

The sensing path is formed in a straight line from the sensing element to the sensing inlet.

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The sensing element provided in the inner space directly contacts an end portion of the terminal of the connector portion located in the inner space.

An inner seal integrally formed with the cover is closely attached to the edge of the sensing element opposite to the terminal.

According to another aspect of the present invention, there is provided a method of manufacturing a semiconductor device, including: a housing having an internal space in which a sensing element is located; and a plurality of terminals formed on one side of the housing, And a cover protruding from the outer surface of the sensing protrusion and having a sensing path for communicating the inner space with the outside, the cover being coupled to the housing to shield the inner space, Wherein the housing has a straight line extending from the element to a sensing inlet which is an entrance of the sensing path, and a protruding portion is formed on the outer surface of the sensing protrusion to fix the housing to the fixing portion, Wherein the mounting bracket is formed integrally with the fastening hole, and the fastening hole penetrates through the fastening hole, Completely fixed.

An inclined surface is formed in the sensing path so as to be inclined downward in the gravity direction toward the sensing opening. The inclined surface starts from a position where the sensing protrusion protrudes from the cover body of the cover.

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The sensing element provided in the inner space directly contacts an end portion of the terminal of the connector portion located in the inner space.

A plurality of sensing inlets, which are the openings of the sensing path opened to the outer surface of the distal end of the sensing protrusion, are formed in four directions.

The following effects can be obtained in the sensor device according to the present invention.

First, in the present invention, the sensing path communicating with the inner space of the housing extends in various directions and is not bent while being opened, so that the sensing element can more accurately measure the physical quantity.

In the present invention, the inclined surface is formed from the inside of the sensing path toward the entrance of the sensing path. This inclined surface is formed in all the sensing paths so that the moisture formed in the sensor device can be discharged to the outside according to the state in which the sensor device is installed. Therefore, the moisture formed on the sensing path is not transmitted to the sensing element of the internal space, thereby improving the durability of the sensing element.

In the meantime, in the present invention, a guard portion is formed on the outer surface of the sensing protrusion formed on the cover for shielding the inner space of the housing, which can fix the sensor device. The fixing part is attached to the fixing part by fastening the sensor device to the fixing hole of the mounting bracket by fastening the fastening part through the fastening hole of the mounting bracket by hooking the edge of the through hole penetrating through the sensing part when fixing the sensor device to the fixing part. And has an effect of facilitating. More specifically, in a state in which the sensor device is fixed to the stationary portion and the stationary portion is fixed, an operator can use the power tool to fasten the fastener through the fastening hole of the mounting bracket and fasten the fastener to the stationary portion, .

In the present invention, since the sensing element for measuring the physical quantity and the terminal of the connector for connection to the outside of the sensor device are directly in contact with and connected to each other, there is no need to use a separate printed circuit board, There is also.

1 is a perspective view showing an appearance of a preferred embodiment of a sensor device according to the present invention.
2 is an exploded perspective view showing a configuration of an embodiment of the present invention.
3 is a perspective view showing an important part of the embodiment of the present invention.
4 is a cross-sectional perspective view showing the internal structure of the sensing protrusion of the embodiment of the present invention.
5 is a sectional view showing a state in which a sensor device according to an embodiment of the present invention is mounted on a fixing part.
6 is a working state view showing fastening of a fastener in a fixed state of the sensor device of the embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the understanding why the present invention is not intended to be interpreted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be " connected, " " coupled, " or " connected. &Quot;

According to the drawings, the housing 10 forms an outer appearance of the sensor device according to the present invention. The housing 10 is made of a synthetic resin material and is made by injection molding. An internal space 12 is formed in the housing 10.

On both sides of the housing 10, there is a mounting bracket 14 so that the sensor device can be mounted on the fixing part 50, which will be described below. The mounting bracket 14 is formed integrally with the housing 10 and has a plate shape. There is a fastening hole 16 through the mounting bracket 14. For example, a bolt-shaped fastener passes through the fastening hole 16.

On one side of the housing (10) is a connector part (18). The connector portion 18 serves to electrically connect the sensor device to the outside. In the connector portion 18, a plurality of terminals 20 made of a conductive metal material are provided. One end of the terminal 20 is located in the internal space 12 and the other end is located inside the connector 18. And the external connector is connected to the connector portion 18 by the mating connector.

There is a seal seating end 22 which surrounds the edge of the internal space 12 in the housing 10. A portion of the inner seal 48, which will be described below, is seated in the seal seating end 22. It is possible to prevent the disturbance from intruding into the inner space 12 by seating the inner seal 48 on the seal seating end 22. [

Two leg holes 24 are formed in the housing 10 between the inner space 12 and the mounting bracket 14. The leg hole 24 is formed through the housing 10. The leg hole 24 is provided with a fastening leg 42 of a cover 30 to be described below. At one side of the leg through-hole 24, there is a latching jaw (not shown). The engaging jaw is a portion where the engaging jaws 44 of the engaging legs 42 to be described below are engaged and fastened.

A sensing element (26) is located in the internal space (12). The sensing element 26 is capable of measuring pressure, for example. The sensing element 26 may be generally mounted on a printed circuit board. However, in this embodiment, the sensing element 26 is not mounted on the printed circuit board but is electrically connected to the terminal 20 in a state in which the sensing element 26 is located in the internal space 12.

The cover 30 shields a certain region of the housing 10 and the inner space 12 from the outside. The cover 30 is also generally made of a synthetic resin material such as the housing 10. The shape of the cover 30 is well shown in FIG. 2. The cover body 32 forms a skeleton. The cover body 32 may shield at least the inner space 12.

A sensing protrusion 34 protruding from the outer surface of the cover main body 32 is formed and the sensing protrusion 34 is opened to the tip end of the sensing protrusion 34. A sensing path 36 for communicating the internal space 12 with the outside is formed in the sensing protrusion 34. A physical quantity at a predetermined position is transmitted to the sensing element 26 in the internal space 12 through the sensing path 36. In this embodiment, the outer surface of the sensing protrusion 34 has a hexahedron shape. For example, the sensing protrusion 34 may have a columnar shape or a hexagonal column, an octagonal column, or the like.

The sensing path 36 is formed inside the sensing protrusion 34 and communicates with the outside through a sensing opening 38. In the present embodiment, the sensing protrusion 34 has a hexahedron shape, and sensing inlets 38 are formed in four directions around the sensing protrusion 34 at the leading edge thereof. Since the sensing opening 38 is opened in various directions, the surrounding environment can be more easily transmitted to the sensing element 26.

The sensing path 36 connecting the sensing element 26 and the sensing inlet 38 is a straight line. This is well known from FIG. Due to such a configuration, the surrounding environment of the sensing protrusion 34 is well transmitted to the sensing element 26, so that a desired physical quantity can be measured easily.

An inclined surface 40 is formed in the sensing path 38 in the sensing path 38. The inclined surface 40 extends obliquely from the position where the sensing protrusion 34 protrudes from the cover body 32 to the sensing opening 38. The inclined surface 40 is formed such that the sensing inlets 38 formed in four directions are inclined in different directions. Therefore, when the sensor device is installed in the fixing part 50, one of the sensors is directed downward in the direction of gravity, and water produced in the sensing path 36 is discharged through the inclined surface 40.

The inclined surface 40 may be formed in a region where moisture is much generated. Generally, the sensing protrusion 34 protruding from the cover body 32 is exposed to the external environment.

On the outer surface of the sensing protrusion 34, there is a portion 41 to be hooked to the edge of the through hole 52 of the fixing portion 50 to be described below. In this embodiment, the temporary fixing portion 41 has a protruding projection shape, and a total of four protrusions protrude from both sides of the outer surface of the sensing projection 34.

On both sides of the cover body 32, there are fastening legs 42. In this embodiment, there are a total of four fastening legs 42, two on each side. The fastening legs 42 are orthogonal to the cover body 32, and fastening tabs 44 are formed at the tip ends thereof.

A pair of the fastening legs 42 are formed on one side surface of the cover body 32. However, a plurality of pairs of fastening legs 42 may be present in the cover body 32, and the fastening tangs 44 of each pair of fastening legs 42 project in opposite directions.

And an outer seal 46 surrounding the outer edge of the cover body 32. The outer seal 46 is preferably formed integrally with the cover main body 32 by inserting the outer seal 46 in advance in a mold for forming the cover main body 32. The outer seal 46 shields a space communicating with the sensing path 36 of the sensing protrusion 34 from the outside. The external seal 46 prevents external disturbance from entering the sensing path 36 from the periphery so that accurate information can be transmitted to the sensing element 26 through the sensing path 36.

On the inner surface of the cover body (32) is an inner seal (48). In the drawings, only a part of the shape of the inner seal 48 is shown. The inner seal (48) has a portion that is seated in the seal seating end (28) and a portion that extends to the inside of the inner space (12). In FIG. 2, a portion extending to the inside of the inner space 12 is partially shown.

The sensor unit of the present invention is mounted to a fixing unit 50 such as a vehicle body panel of an automobile. A through hole 52 is formed in the fixing unit 50, and the sensing protrusion 34 And is located through. The fastening portion (50) may also be provided with a fastening hole (54). The fastening hole 56 is formed in the fastening hole 54 formed in the mounting bracket 14 of the housing 10. And a nut for fastening the fastener 56 to the fastening hole 54 may be used. Of course, a bolt-type fastener may be provided in the fixing portion 50 without forming the fastening hole 54 so that the fastener passes through the fastening hole 16, and a nut may be fastened thereto.

Hereinafter, how the sensing device according to the present invention having the above-described structure is assembled and used will be described in detail.

In the present invention, the housing (10) and the cover (30) are made of synthetic resin and made by injection molding. The cover 30 is also provided with an assembly of the outer seal 46 and the inner seal 48.

The sensing element 26 is inserted into the internal space 12 so as to be in contact with the terminal 20 in the connector portion 18 and the housing 10 and the cover 30 are engaged. At this time, the inner seal 48 of the cover 30 enters the inner space 12 and pushes the edge of the sensing element 26, so that the sensing element 26 and the terminal 20 are in contact with each other.

The combination of the cover 30 and the housing 10 will be described. When the engaging leg 42 of the cover 30 is inserted into the leg hole 24 of the housing 10 and the engaging leg 42 is hooked on the engaging jaw of the housing 10, (30) is fastened to the housing (10).

In the sensing device of the present invention assembled in this manner, the space in which the portion with the sensing protrusion 34 is located is shielded from the outside by the external seal 46. As shown in FIG. 6, the space in which the sensing protrusion 34 is located is a region opposite to the housing 10, with the fixing portion 50 therebetween. And the sensing protrusion 34 protrudes through the through-hole 52 into the space.

When the sensing protrusion 34 protrudes through the through-hole 52, the protruding portion 41 is hooked on the through-hole 52, so that the sensor device of the present invention is fixed to the fixing portion 50 State. In this state, the fastening hole 56 is passed through the fastening hole 16 so that the mounting bracket 14 is mounted on the fastening portion 50 and fixed. In such a state, the mounting of the sensor device of the present invention is completed.

When the sensor unit is mounted on the fixing unit 50, the external seal 46 is positioned in close contact with a predetermined region of the specific position and the sensing protrusion 34 is positioned through the through- So that the influence of the area on the opposite side of the area does not occur. Such a state can be confirmed through FIG.

As can be seen from FIG. 5, in the present invention, the sensing element 26 is affected through the sensing path 36, which is linear with the space in which the sensing protrusion 34 is located. Therefore, the sensing element 26 can accurately measure the state of the region where the sensing protrusion 34 is located.

Water may be formed in the sensing path 36 according to the environment of the region where the sensing protrusion 34 is located. The moisture produced in this manner can be discharged to the outside through the sensing inlet 38 through the inclined surface 40. Actually, the area where the moisture is generated is the area of the sensing protrusion 34 protruding from the cover main body 32, so that the area of the inclined surface 40 is present. With this structure, even if moisture is generated in the sensing path 36 of the sensing protrusion 34, the sensing protrusion 26 can be easily discharged to the outside through the inclined surface 40 rather than affecting the sensing element 26.

While the present invention has been described in connection with what is presently considered to be the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

Although the illustrated embodiment includes the temporary fixing portion 41, the temporary fixing portion 41 is not necessarily required. A sensing opening 38 may be formed on the sensing protrusion 34 with the inclined surface 40 without the toughening portion 41.

The cover 30 may be directly coupled to the housing 10 through ultrasonic welding without using the fastening legs 42 or the like.

10: housing 12: inner space
14: mounting bracket 16: fastening hole
18: connector portion 20: terminal
22: Seat seating end 24: Leg opening
26: sensing element 30: cover
32: cover body 34: sensing projection
36: sensing path 38: sensing entrance
40: sloped surface 41:
42: fastening leg 44: fastening jaw
46: outer seal 48: inner seal
50: fixing part 52: through hole
54: fastening hole 56: fastening hole

Claims (11)

A housing in which an internal space in which the sensing element is located is formed,
A connector portion formed at one side of the housing and having a terminal therein for transmitting a sensed value from the sensing element to the outside,
And a cover protruding from an outer surface of the sensing protrusion and having a sensing path for communicating the inner space with the outside, the cover being fastened to the housing to shield the inner space,
Wherein a sensing inlet, which is an inlet of the sensing path, is formed at a plurality of positions around the tip of the sensing protrusion,
A protruding portion is formed on an outer surface of the sensing protrusion to fix the housing to the fixing portion,
Wherein a mounting bracket is integrally formed on both sides of the housing and through which fastening holes are passed, and fastening holes are passed through the fastening holes to completely fix the housing to the fixing portion.
The sensor device according to claim 1, wherein an inclined surface is formed in the sensing path so as to be inclined toward the sensing opening.
3. The sensor device of claim 2, wherein the sensing path is formed in a straight line from the sensing element to the sensing entrance.
delete The sensor device according to any one of claims 1 to 3, wherein the sensing element provided in the internal space is in direct contact with an end portion of the terminal of the connector portion located in the internal space.
6. The sensor device according to claim 5, wherein an inner seal integrally formed with the cover is closely attached to an edge of the sensing element opposite to the terminal.
A housing in which an internal space in which the sensing element is located is formed,
A connector portion formed at one side of the housing and having a terminal therein for transmitting a sensed value from the sensing element to the outside,
And a cover protruding from the outer surface of the sensing protrusion and having a sensing path for communicating the inner space with the outside, the cover being fastened to the housing to shield the inner space,
The sensing path has a straight path from the sensing element to the sensing inlet, which is the entrance of the sensing path,
A protruding portion is formed on an outer surface of the sensing protrusion to fix the housing to the fixing portion,
Wherein a mounting bracket is integrally formed on both sides of the housing and through which fastening holes are passed, and fastening holes are passed through the fastening holes to completely fix the housing to the fixing portion.
The sensor device according to claim 7, wherein an inclined surface inclined downward in the gravity direction toward the sensing opening is formed in the sensing path, wherein the inclined surface starts from a position where the sensing protrusion protrudes from the cover body of the cover.
delete 9. The sensor device according to claim 8, wherein the sensing element provided in the internal space is in direct contact with an end portion of the terminal of the connector portion located in the internal space.
The sensor device according to any one of claims 7, 8, and 10, wherein a plurality of sensing inlets, which are the openings of the sensing path opened to the outer surface of the distal end of the sensing protrusion, are formed in four directions.

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