RF filters with improved installation efficiency

Abstract

The present invention provides an RF filter comprising: a body portion having an internal receiving space formed therein and a filtering module disposed in the receiving space for passing only desired frequency components or removing unnecessary frequency components; an input connector module coupled to one side of the body portion and receiving an RF (Radio Frequency) signal from the outside and transmitting it to the body portion; and an output connector module coupled to the other side of the body portion and outputting a signal filtered by the body portion to the outside. The input connector module is rotatably coupled to one side of the body portion and, while coupled to the body portion, can adjust the angle by rotating around the part coupled to the body portion to avoid interference with an external unit disposed adjacent to the outside of the body portion. Therefore, since the input connector is angle-adjustable, it has the advantage of improving installation efficiency by easily avoiding interference with other devices placed adjacently.

Description

Technology Field

[0001] The present invention relates to an RF filter with improved installation efficiency, and more specifically, to an RF filter with improved installation efficiency in which the input connector is angle-adjustable. Background Technology

[0002] RF filters serve to pass only the frequencies within a desired band among various input frequency components while attenuating the remaining frequency signals, and a wide variety of types and forms have been developed. Generally, an RF filter consists of a cavity where filtering units are placed, an input connector coupled to one side of the cavity to receive RF signals from the outside, and an output connector coupled to the other side of the cavity to output the filtered RF signal.

[0003] Conventional RF filters are formed with an input connector fixed to a cavity. Therefore, if interference occurs between the RF filter and another adjacent device, there is a problem in that a different type of RF filter must be used or the position of the adjacent device must be adjusted to resolve the interference.

[0004] Furthermore, since conventional RF filters have the cavity, input connector, and output connector formed as a single unit, the entire RF filter must be discarded if any of these components become unusable due to damage. In other words, there is a problem where even other components that are not in issue are not recycled and are instead discarded.

[0005] Furthermore, conventional RF filters lack a device to measure the risk of carbonization. Consequently, there is a problem where the device is damaged due to RF filter carbonization, which could otherwise be prevented if predicted in advance. Prior art literature

[0006] Republic of Korea Published Patent No. 10-2024-0071603 The problem to be solved

[0007] The present invention aims to provide an RF filter with improved installation efficiency, wherein the input connector is angle-adjustable. means of solving the problem

[0008] According to one aspect of the present invention, the present invention provides an RF filter comprising: a body portion having an internal receiving space formed therein and a filtering module disposed in the receiving space for passing only desired frequency components or removing unnecessary frequency components; an input connector module coupled to one side of the body portion and receiving an RF (Radio Frequency) signal from the outside and transmitting it to the body portion; and an output connector module coupled to the other side of the body portion and outputting a signal filtered by the body portion to the outside. The input connector module is rotatably coupled to one side of the body portion and, while coupled to the body portion, is capable of angle adjustment by rotating around the part coupled to the body portion to avoid interference with an external unit disposed adjacent to the outside of the body portion. Effects of the invention

[0009] The RF filter with improved installation efficiency according to the present invention has the following effects.

[0010] First, the input connector is angle-adjustable, which allows for easy avoidance of interference with other devices placed adjacently, thus offering the advantage of improved installation efficiency.

[0011] Second, the input connector and the output connector are detachably coupled to the body, forming a three-stage structure. This has the advantage that if a problem such as damage occurs in any one of the components, the other components can be separated and the components that are not damaged can be recycled.

[0012] Third, it has the advantage of preventing carbonization in advance by including a carbonization sensor that controls the device to stop operation if a risk of carbonization occurs. Brief explanation of the drawing

[0013] FIG. 1 is a schematic diagram showing an RF filter according to one embodiment of the present invention. Figure 2 is a schematic diagram showing the body portion separated from the RF filter according to Figure 1. Figure 3 is a schematic diagram showing the internal appearance of the body part by separating the upper plate from the body part according to Figure 2. Figure 4 is a schematic diagram showing the input connector module separated from the RF filter according to Figure 1. FIGS. 5 and 6 are schematic diagrams showing the lower case, the input connector body, the upper case, and the case fixing module removed from the input connector module according to FIG. 4. Figure 7 is a schematic diagram showing the first coupling plate separated from the input connector module according to Figure 4. FIG. 8 is a schematic diagram showing the inner coupling unit of the first coupling plate separated from the input connector module according to FIG. 4. FIG. 9 is a schematic diagram showing the outer coupling unit of the first coupling plate separated from the input connector module according to FIG. 4. FIG. 10 is a schematic diagram showing the angle adjustment module separated from the outer coupling unit of the first coupling plate of the input connector module according to FIG. 4. FIGS. 11 and 12 are schematic diagrams showing the lower case and the case fixing module separated from the input connector module according to FIG. 4. FIG. 13 is a schematic diagram showing the input connector body separated from the input connector module according to FIG. 4. Figure 14 is a schematic diagram showing the output connector separated from the RF filter according to Figure 1. FIG. 15 is a schematic diagram showing the second coupling plate separated from the output connector according to FIG. 14. FIG. 16 is a schematic diagram showing the output connector body and the second conductive line separated among the output connectors according to FIG. 14. FIG. 17 is a schematic diagram showing the second conductive line separated from the output connector according to FIG. 14. FIG. 18 is a schematic diagram showing the output connector body separated from the output connector according to FIG. 14. FIG. 19 is a schematic diagram showing the output connector leg portion separated from the output connector according to FIG. 14. Figure 20 is a graph showing data on temperature, humidity, and VOCs, etc., measured to prevent carbonization in the RF filter according to Figure 1. FIG. 21 is a schematic diagram showing an RF filter according to another embodiment of the present invention. FIG. 22 is a schematic diagram showing the sensor module cover removed from the RF filter according to FIG. 21. FIG. 23 is a schematic diagram showing the sensor holder separated from the sensor module part of the RF filter according to FIG. 21. FIG. 24 is a schematic diagram showing the sensor module cover separated from the RF filter according to FIG. 21. Specific details for implementing the invention

[0014] The present invention will be described in detail below by explaining preferred embodiments of the invention with reference to the attached drawings.

[0015] Referring to FIGS. 1 to 20, an RF filter (1) according to one embodiment of the present invention includes a body part (1000), an input connector module (2000), an output connector module (3000), a heat dissipation unit (4000), and a connection interface unit (5000). The body part (1000) has a receiving space formed inside. The body part (1000) has a filtering module disposed in the receiving space that allows only desired frequency components to pass through or removes unnecessary frequency components.

[0016] The body portion (1000) includes a case (1100), an inductor (1200), and a capacitor (1300). The case (1100) has the aforementioned receiving space formed inside. The case (1100) has an overall rectangular shape. At this time, both sides (left and right sides) of the case (1100) are formed with an open structure. The body portion (1000) is formed of an aluminum alloy material. However, the present invention is not limited thereto, and the material of the body portion (1000) can be changed.

[0017] That is, the case (1100) includes a bottom plate (1110), a front plate (1120), a rear plate (1130), and a top plate (1140). The front plate (1120) is erected on the front side of the bottom plate (1110). The front plate (1120) is formed integrally with the front edge of the bottom plate (1110). In the following, the x-axis direction, which is the direction facing each other between the input connector (2000) and the output connector (3000), is referred to as the left-right direction; the y-axis direction, which is the direction facing each other between the front plate (1120) and the rear plate (1130), is referred to as the front-back direction; and the z-axis direction, which is the direction facing each other between the bottom plate (1110) and the top plate (1140), is referred to as the up-down direction.

[0018] The front plate (1120) is erected on the front side of the bottom plate (1110). The front plate (1120) is formed integrally with the front edge of the bottom plate (1110). A first front plate coupling hole (1120a) for coupling with the input connector module (2000) is formed on the upper part of the front plate (1120) adjacent to the input connector module (2000). Additionally, a second front plate coupling hole (1120b) for coupling with the output connector module (3000) is formed on the upper part of the front plate (1120) adjacent to the output connector module (3000).

[0019] The rear plate (1130) is erected on the rear side of the lower plate (1110). The rear plate (1130) is formed integrally with the rear corner of the lower plate (1110). A first rear plate coupling hole (1130a) for coupling with the input connector module (2000) is formed on the upper part of the rear plate (1130) adjacent to the input connector module (2000). Additionally, a second rear plate coupling hole (1130b) for coupling with the output connector module (3000) is formed on the upper part of the rear plate (1130) adjacent to the output connector module (3000).

[0020] The first coupling hole (1120a) of the front plate and the first coupling hole (1130a) of the rear plate are formed in a straight line in the front-rear direction. And the second coupling hole (1120b) of the front plate and the second coupling hole (1130b) of the rear plate are formed in a straight line in the front-rear direction.

[0021] The top plate (1140) is placed on the front plate (1120) and the rear plate (1130). The top plate (1140) is detachably connected to each of the front plate (1120) and the rear plate (1130).

[0022] The inductor (1200) is placed inside the aforementioned receiving space. The inductor (1200) has resistance to changes in current and exhibits high impedance, particularly in high-frequency signals. That is, as the frequency increases, the reactance of the inductor (1120) also increases, thereby allowing low frequencies to pass through easily while blocking high frequencies. The inductor (1120) is used as a component of a low-pass filter or a resonant circuit in the RF filter (1000).

[0023] In this embodiment, the inductor (1200) includes a first inductor (1210) and a second inductor (1220). The first inductor (1210) is positioned at the center of the receiving space. The first inductor (1210) forms a resonant circuit with the capacitor (1300) described below.

[0024] The second inductor (1220) includes a second-1 inductor (1221) and a second-2 inductor (1222). The second-1 inductor (1221) and the second-2 inductor (1222) are positioned between the output connector (3000) and the first inductor (1210). The second-1 inductor (1221) and the second-2 inductor (1222) are positioned adjacent to each other along the aforementioned front-back direction.

[0025] The capacitor (1300) responds to changes in voltage. The capacitor (1300) exhibits low impedance, particularly in high-frequency signals. That is, as the frequency increases, the reactance of the capacitor (1300) decreases, allowing high frequencies to pass easily while blocking low frequencies. The capacitor (1300) is used as a component of a high-pass filter or resonant circuit in the RF filter (1).

[0026] A capacitor (1300) is positioned between an input connector (2000) and a first inductor (1200). The capacitor (1300) includes a first capacitor (1310) and a second capacitor (1320). The first capacitor (1310) and the second capacitor (1320) are positioned so as to be spaced apart in the forward and backward directions. The first inductor (1210) is positioned between an output connector (3000) and a capacitor (1300). The first capacitor (1310) and the second capacitor (1320) are positioned adjacent to the first inductor (1210).

[0027] The input connector module (2000) is detachably coupled to one side (right side) of the body part (1000). Therefore, the input connector module (2000) can be separated from the body part (1000) and replaced. Thus, if a problem occurs where the body part (1000) cannot be used, it can be separated from the body part (1000) and reused. The input connector module (2000) receives an RF (Radio Frequency) signal from the outside and transmits it to the body part (1000). The input connector module (2000) is formed of a composite material including metal and an insulating material. However, the present invention is not limited thereto, and the material of the input connector module (2000) can be changed.

[0028] The input connector module (2000) is rotatably coupled to one side of the body part (1000). The input connector module (2000) can be angle-adjusted by rotating it around the part coupled to the body part (1000) while coupled to the body part (1000) to avoid interference with an external unit positioned adjacent to the outside of the body part (1000).

[0029] The input connector module (2000) includes a first coupling plate (2100), a first coupling plate inner coupling unit (2200), a first coupling plate outer coupling unit (2300), a lower case (2400), an input connector body (2500), an upper case (2600), and a case fixing module (2700). The first coupling plate (2100) is detachably coupled to one side of the case (1100). The first coupling plate (2100) includes a first coupling plate body (2110), a first coupling plate front coupling plate (2120), a first coupling plate rear coupling plate (2130), a first coupling plate lower coupling plate (2140), and a first coupling plate lower coupling plate second coupling plate (2150).

[0030] The first coupling plate body (2110) has a rectangular shape. The first coupling plate body (2110) has a first coupling plate center hole (2111) formed in the center for coupling the first coupling plate inner coupling unit (2200) and the first coupling plate outer coupling unit (2300) in the left and right directions where the case (1100) extends. On the front side of the first coupling plate body (2110), which corresponds to the front side among the front and rear directions intersecting the left and right directions, a first coupling plate front groove (2112) is formed from the front side toward the rear side opposite the front side.

[0031] And on the rear side opposite to the front side of the first coupling plate body (2110), a first coupling plate rear groove (2113) is formed in the direction from the rear side to the front side. On the lower side of the first coupling plate body (2110), which corresponds to the lower side among the upper and lower directions intersecting the left-right direction and the front-back direction respectively, a first coupling plate lower groove (2114) is formed in the direction from the lower side to the upper side opposite to the lower side. On the lower side of the first coupling plate body (2110), a first coupling plate second lower groove (2115) is formed in a structure symmetrical to the first coupling plate lower groove (2114) with respect to the center of the lower side.

[0032] The first coupling plate body (2110) has a first coupling plate first angle adjustment hole (2116) and a first coupling plate second angle adjustment hole (2117) formed therein. The first coupling plate first angle adjustment hole (2116) is formed in a portion adjacent to the edge of the first coupling plate center hole (2111). A plurality of first coupling plate first angle adjustment holes (2116) are formed so as to be spaced apart by a first set angle along the circumferential direction of the first coupling plate center hole (2111) in the upward direction from the center of the first coupling plate center hole (2111) in the vertical direction.

[0033] In this embodiment, six first angle adjustment holes (2116) are formed in the first coupling plate. Each of the first angle adjustment holes (2116) in the first coupling plate is formed to be spaced apart by 15 degrees. Therefore, by using the first angle adjustment holes (2116) in the first coupling plate, a total rotation of 90 degrees is possible. However, the present invention is not limited thereto, and the number and spacing angles of the first angle adjustment holes (2116) in the first coupling plate can be changed. Furthermore, the first angle adjustment holes (2116) in the first coupling plate serve to maintain a fixed state so that when a part of the outer coupling unit (2300) of the first coupling plate rotates, at least a part is inserted and caught, and no additional external force is applied.

[0034] A plurality of first coupling plate second angle adjustment holes (2117) are formed with the center of the first coupling plate center hole (2111) as the origin, and are positioned symmetrically to the origin with respect to the first coupling plate first angle adjustment holes (2116) in the yz plane including the first coupling plate center hole (2111), so as to be spaced apart by the first set angle. Six first coupling plate second angle adjustment holes (2117) are also formed spaced apart by 15 degrees. Therefore, by using the first coupling plate second angle adjustment holes (2117), a total rotation of 90 degrees is possible. However, the present invention is not limited thereto, and the number and spacing angles of the first coupling plate second angle adjustment holes (2117) can be changed. The second angle adjustment hole (2117) of the first coupling plate serves to allow a portion of the outer coupling unit (2300) of the first coupling plate to rotate and then be inserted and caught so that it remains in a fixed state without additional external force acting upon it.

[0035] The first coupling plate front side coupling plate (2120) is integrally formed in the first coupling plate front side groove (2112). The first coupling plate front side coupling plate (2120) extends in the direction of the output connector module (3000). The first coupling plate front side coupling plate (2120) has a first coupling plate front side coupling hole (2120a) formed in the front and rear directions. The first coupling plate front side coupling hole (2120a) is coupled with the front plate first coupling hole (1120a).

[0036] The first coupling plate rear coupling plate (2130) is integrally formed in the first coupling plate rear groove (2113). The first coupling plate rear coupling plate (2130) is extended in the direction of the output connector module (3000) with the same length while facing the first coupling plate front coupling plate (2140). The first coupling plate rear coupling plate (2130) has a first coupling plate rear coupling hole (2130a) formed in the front and rear directions. The first coupling plate rear coupling hole (2130a) is coupled with the first coupling plate rear coupling hole (2130a).

[0037] The first coupling plate (2140) on the lower side of the first coupling plate is integrally formed in the first lower groove (2114) of the first coupling plate. The first coupling plate (2140) on the lower side of the first coupling plate extends in the direction of the output connector module (3000). The first coupling plate (2140) on the lower side of the first coupling plate has a first coupling hole (2140a) formed in the upper and lower directions.

[0038] The second coupling plate (2150) on the lower side of the first coupling plate is integrally formed in the second lower groove (2115) of the first coupling plate. The second coupling plate (2150) on the lower side of the first coupling plate extends in the direction of the output connector module (3000) with the same length parallel to the first coupling plate (2140) on the lower side of the first coupling plate. The second coupling plate (2150) on the lower side of the first coupling plate has a second coupling hole (2150a) formed in the upper and lower directions.

[0039] The first coupling plate inner coupling unit (2200) is disposed in the receiving space. The first coupling plate inner coupling unit (2200) is detachably coupled to the inner surface of the first coupling plate (2100), which is the part of the first coupling plate (2100) facing the receiving space.

[0040] The first coupling plate inner coupling unit (2200) includes a first coupling plate inner coupling unit body (2210) and a first coupling plate inner coupling unit protrusion (2220). The first coupling plate inner coupling unit body (2210) is formed in a circular shape. The first coupling plate inner coupling unit (2200) has a first coupling plate inner coupling unit center hole (2211) formed in the left and right directions so that a first conductive line for receiving a signal from an input connector module (2000) can pass through it.

[0041] And the first coupling plate inner coupling unit (2200) has a center hole (2211) of the first coupling plate inner coupling unit formed with a cross-section in the shape of an anchor (hereinafter referred to as the "first anchor shape"). The first coupling plate inner coupling unit (2200) has a first coupling hole (2212) and a second coupling hole (2213) of the first coupling plate inner coupling unit formed in the left and right directions.

[0042] Furthermore, the first coupling hole (2212) and the second coupling hole (2213) of the first coupling plate inner coupling unit are formed in a structure that is symmetrical in the front-rear direction with respect to the center hole (2211) of the first coupling plate inner coupling unit. Additionally, a circular groove (2214) is formed in the center of the outer surface of the first coupling plate inner coupling unit (2200) facing the first coupling plate (2100), thereby forming a step structure between the center and the edge of the outer surface of the first coupling plate inner coupling unit (2200). Furthermore, the edge of the outer surface of the first coupling plate inner coupling unit (2200) is in close contact with the inner surface of the first coupling plate (2100).

[0043] The protrusion (2220) of the inner coupling unit of the first coupling plate is integrally formed on the lower part of the main body (2210) of the inner coupling unit of the first coupling plate. The protrusion (2220) of the inner coupling unit of the first coupling plate protrudes in a straight line with the upper part of the first anchor shape.

[0044] The first coupling plate outer coupling unit (2300) is positioned so that its inner surface faces the first coupling plate inner coupling unit (2200) with the first coupling plate (2100) in between. The first coupling plate outer coupling unit (2300) is detachably coupled to the outer surface of the first coupling plate (21000).

[0045] The first coupling plate outer coupling unit (2300) includes a first coupling plate contact portion (2310), a first coupling plate center hole insertion portion (2320), a first angle fixing module (2330), and a second angle fixing module (2340). The first coupling plate contact portion (2310) has an overall hexagonal structure. The first coupling plate contact portion (2310) has a first coupling plate outer coupling unit protrusion (2316) formed on the lower center of the bottom surface, which protrudes downward.

[0046] The first coupling plate contact portion (2310) has a curved structure formed at each vertex. The edge portion of the inner surface of the first coupling plate contact portion (2310) is in contact with the outer surface of the first coupling plate (2100). The first coupling plate contact portion (2310) has a first center hole (2311) of the outer coupling unit of the first coupling plate formed in an anchor shape (hereinafter referred to as the "second anchor shape") corresponding to the center hole (2210) of the inner coupling unit of the first coupling plate along the left and right directions.

[0047] In addition, the first coupling plate contact portion (2310) has a first coupling plate outer coupling unit first angle adjustment hole (2312) formed so as to be aligned in a straight line with at least one of the first coupling plate first angle adjustment holes (2216) in the left and right directions, while the first coupling plate outer coupling unit first center hole (2311) is positioned to correspond to the first coupling plate inner coupling unit center hole (2211). In addition, the first coupling plate contact portion (2310) has a first coupling plate outer coupling unit second angle adjustment hole (2313) formed so as to be aligned in a straight line with at least one of the first coupling plate second angle adjustment holes (2117) in the left and right directions, while the first coupling plate outer coupling unit first center hole (2311) is positioned to correspond to the first coupling plate inner coupling unit center hole (2211).

[0048] And the first coupling plate contact portion (2310) has a first coupling hole (2314) and a second coupling hole (2315) formed in the first coupling plate outer coupling unit at a position symmetrical in the front and rear directions with respect to the first center hole (2311) of the first coupling plate outer coupling unit for coupling with the lower case (2400).

[0049] The first coupling plate center hole insertion part (2320) is integrally formed in the center of the inner surface of the first coupling plate contact part (2130) and protrudes in the direction of the first coupling plate inner coupling unit (2200). When the first coupling plate contact part (2310) is in contact with the first coupling plate (2100), the first coupling plate center hole insertion part (2320) is inserted into the first coupling plate center hole (2111) and is inserted into the first coupling plate inner coupling unit groove (2214) formed in the center of the first coupling plate inner coupling unit body (2210) to be in contact.

[0050] And the first coupling plate center hole insertion part (2320) has a first coupling plate outer coupling unit second center hole (2321) formed in an anchor shape (hereinafter referred to as the "third anchor shape") corresponding to the first coupling plate inner coupling unit center hole (2211). At this time, the first coupling plate outer coupling unit second center hole (2321) is in communication with the first coupling plate outer coupling unit first center hole (2311).

[0051] And the first coupling plate center hole insertion part (2320) has the first coupling hole (2212) and the second coupling hole (2213) of the first coupling plate inner coupling unit formed therein, and the first coupling groove (2322) and the second coupling groove (2323) of the first coupling plate outer coupling unit formed in a straight line in the left and right directions for coupling with the first coupling plate inner coupling unit (2200).

[0052] The first coupling plate inner coupling unit (2200) and the first coupling plate outer coupling unit (2300) are fixed by a fastening member that passes sequentially through the first coupling plate inner coupling unit (2200) and the first coupling plate outer coupling unit and is fixed to the first coupling groove (2322) of the first coupling plate outer coupling unit and the second coupling groove (2323) of the first coupling plate outer coupling unit, respectively. In this embodiment, the fastening member is exemplified as a screw, but the fastening member can be changed to a bolt or rivet, etc. In this embodiment, the coupling hole or coupling groove is a part that is coupled with a screw, bolt, or rivet, etc., unless otherwise specified.

[0053] The first angle fixing module (2330) is inserted into and fixed in the first angle adjustment hole (2312) of the first coupling plate outer coupling unit. The first angle fixing module (2330) may be inserted into at least one of the first angle adjustment holes (2312) of the first coupling plate inner coupling unit, with a portion of it protruding from the first angle adjustment hole (2312) of the first coupling plate outer coupling unit toward the first coupling plate (2100).

[0054] The first angle fixing module (2330) includes a first angle fixing module body (2331) and a first angle fixing module ball portion (2332). The first angle fixing module body (2331) is inserted into the first angle adjustment hole (2312) of the first coupling plate outer coupling unit. The first angle fixing module body (2331) extends to an end facing the first coupling plate (2100).

[0055] The first angle fixing module ball portion (2332) is coupled to an end portion of the first angle fixing module body (2331) that extends to face the first coupling plate (2100). When the first angle fixing module ball portion (2332) is in close contact with the flat outer surface of the first coupling plate (2100), it is compressed inward toward the first angle fixing module body (2331), and when it faces the first coupling plate first angle adjustment hole (2116) of the first coupling plate (2100), a portion of it is inserted into the first coupling plate first angle adjustment hole (2116).

[0056] To this end, an elastic member may be placed inside the first angle fixing module body (2331). That is, when the first angle fixing module ball part (2332) receives a force in the direction of the first angle fixing module body (2331), the elastic member is compressed, and at least a portion of the first angle fixing module ball part (2332) is inserted in the direction of the first angle fixing module body (2331). When the force received by the first angle fixing module ball part (2332) is dissipated, the elastic member is restored, and the portion of the first angle fixing module ball part (2332) that was inserted into the interior of the first angle fixing module body (2331) protrudes outward again.

[0057] The second angle fixing module (2340) is inserted into and fixed in the second angle adjustment hole (2313) of the first coupling plate outer coupling unit. The second angle fixing module (2340) may be inserted into at least one of the second angle adjustment holes (2313) of the first coupling plate inner coupling unit, with a portion protruding from the second angle adjustment hole (2313) of the first coupling plate outer coupling unit toward the first coupling plate (2100). Since the configuration and structure of the second angle fixing module (2340) are similar to those of the first angle fixing module (2330), a detailed description is omitted.

[0058] The lower case (2400) is detachably coupled to the outer surface of the first coupling plate outer coupling unit (2300). The lower case (2400) has a first storage space formed inside. The upper part of the lower case (2400) is open. The lower case (2400) has a shape similar to a rectangular prism overall.

[0059] The lower case (2400) includes a lower case flange portion (2410) and a lower case body (2420). The lower case flange portion (2410) has an overall hexagonal structure corresponding to the structure of the first coupling plate outer coupling unit (2300). At this time, each vertex portion of the lower case flange portion (2410) is formed as a curved structure. Furthermore, the inner surface of the lower case flange portion (2410) facing the first coupling plate outer coupling unit (2300) is fixed by being in close contact with the first coupling plate outer coupling unit (2300). In addition, for coupling with the first coupling plate outer coupling unit (2300), the lower case flange portion (2410) has a lower case first coupling hole (2411) and a lower case second coupling hole (2412) formed in a straight line with the first coupling plate outer coupling unit first coupling hole (2314) and the first coupling plate outer coupling unit second coupling hole (2315) in the left and right directions.

[0060] The lower case body (2420) has a rectangular shape with a width narrower than the width at which the lower case first coupling hole (2411) and the lower case second coupling hole (2412) are spaced apart. The lower case body (2420) is positioned between the lower case first coupling hole (2411) and the lower case second coupling hole (2412). The lower case body (2420) is integrally formed with its inner surface in close contact with the outer surface of the lower case flange portion (2410). The lower case body (2420) has the first storage space formed inside and has an open top. To fix the input connector body (2500) inserted into the first storage space, the lower case body (2420) has an input connector body fixing hole (2421) formed on its outer surface in the left and right directions.

[0061] The input connector body (2500) is inserted into the first storage space. The upper portion of the input connector body (2500) protrudes upward above the upper portion of the lower case (2400). An outer surface groove (not shown) is formed along the outer surface of the portion of the input connector body (2500) that protrudes upward above the upper portion of the lower case (2400). A square ring-shaped sealing member (2540) is inserted into the outer surface groove of the input connector body. The sealing member (2540) improves the adhesion and frictional force with the inside of the upper case (2600) when the upper case (2600) is seated and coupled on the lower case (2400). The sealing member (2540) is exemplified as being formed of a rubber material, but the material of the sealing member (2540) can be changed. The input connector body (2500) is coupled to the lower case (2400) so as to be detachable.

[0062] The input connector body (2500) has a first conductive line (not shown) disposed inside for receiving an RF signal from the outside. The input connector body (2500) has a first-1 conductive line insertion hole (2510) into which a first-1 conductive line (not shown) can be inserted in the vertical direction, a first-2 conductive line insertion hole (2520) into which a first-2 conductive line (not shown) can be inserted, and a first-3 conductive line insertion hole (2530) into which a first-3 conductive line (not shown) can be inserted.

[0063] The upper case (2600) has a second storage space formed inside. The upper case (2600) is formed with a structure in which the upper and lower ends are open. The upper case (2600) is seated on the upper part of the lower case (2400) such that a portion of the input connector body (2500) protruding higher than the upper part of the lower case is positioned in the second storage space.

[0064] The upper case (2600) includes an upper case body (2610), a first fixing protruding bar (2620), and a second fixing protruding bar (2630). The upper case body (2610) has the second storage space formed inside. The upper case body (2610) has an open top and bottom. The upper case body (2610) has a wider bottom so that an upper case step portion is formed on the lower inner side of the second storage space. The lower case body (2420) is inserted into the upper case step portion and adheres to it, thereby allowing the upper case body (2610) to be seated on the lower case body (2420).

[0065] The first fixing protruding bar (2620) is integrally formed on the front side of the outer circumference of the upper case body (2610). The first fixing protruding bar (2620) is formed to protrude in the front and rear directions.

[0066] The second fixing protrusion bar (2630) is integrally formed on the rear side of the outer surface of the upper case body (2610). The second fixing protrusion bar (2630) is formed to protrude in the front-rear direction.

[0067] The lower part of the case fixing module (2700) is coupled to the outer surface of the lower case (2400). The upper part of the case fixing module (2700) is coupled to the upper case (2600) so as to be detachable. That is, the upper part of the case fixing module (2700) is coupled to the upper case (2600) to fix the upper case (2600) to the lower case, or the upper case (2600) has a structure in which the coupling between the upper part of the case fixing module (2700) and the upper case (2600) can be released so that the upper case (2600) can be separated while fixed to the lower case (2400).

[0068] The case fixing module (2700) includes a first fixing pin (2710), a second fixing pin (2720), and a fixing pivot device (2730). The first fixing pin (2710) is integrally formed on the front side of the outer circumference of the lower case body (2420). The first fixing pin (2710) is formed to protrude in the front-rear direction.

[0069] The second fixing pin (2720) is integrally formed on the rear side of the outer surface of the lower case body (2420). The second fixing pin (2720) is formed to protrude in the front-rear direction.

[0070] One side of the fixed pivot device (2730) is connected to the first fixing pin (2710) and rotates around a virtual central axis that extends parallel to the y-axis forming the xy plane. The other side of the fixed pivot device (2730) is connected to the second fixing pin (2720) and rotates around the virtual central axis, thereby connecting the upper case (2600) to the lower case (2400) so that it can be detachably attached.

[0071] The fixed pivot device (2730) includes a first fixing pin coupling part (2731), a second fixing pin coupling part (2732), a fixed pivot device body (2733), and a handle part for releasing the coupling (2734). The first fixing pin coupling part (2731) is coupled so that it can rotate when coupled with the upper case (2600), with a first fixing pin (2710) penetrating through the lower part. The first fixing pin coupling part (2731) has a first curved surface structure formed such that the part facing the body part (1000) is concave. The first curved surface structure of the first fixing pin coupling part (2731) is in close contact with the first fixing protruding bar (2620).

[0072] The second fixing pin coupling part (2732) is coupled to the upper case (2600) so that the second fixing pin (2720) penetrates the lower part to allow rotation. The second fixing pin coupling part (2732) has a second curved surface structure formed such that the part facing the body part (1000) is concave. The second curved surface structure of the second fixing pin coupling part (2732) is in close contact with the second protruding bar (2630) for fixing. The second fixing pin coupling part (2732) is formed in a symmetrical structure centered on the first fixing pin coupling part (2731) and the lower case body (2420).

[0073] The main body (2733) of the fixed pivot device is integrally coupled with the first fixing pin coupling part (2731) and the second fixing pin coupling part (2732), respectively, while coupled with the upper case (2600). The main body (2733) of the fixed pivot device is positioned to surround the upper case (2600). The main body (2733) of the fixed pivot device is formed in a structure similar to a 'C' overall.

[0074] The main body of the fixed rotating device (2733) includes a first fixed protruding bar coupling part (2733a), a second fixed protruding bar coupling part (2733b), and a central part of the main body of the fixed rotating device (2733c). The first fixed protruding bar coupling part (2733a) extends in the left and right directions while coupled with the upper case (2600). A first fixed pin coupling part (2731) is integrally coupled to the lower side of the first fixed protruding bar coupling part (2733a).

[0075] The second protruding bar coupling part (2733b) for fixing extends in the left and right directions while coupled with the upper case (2600). The second fixing pin coupling part (2732) is integrally coupled to the lower side of the second protruding bar coupling part (2733b).

[0076] One side of the central part (2733c) of the main body of the fixed rotating device is formed integrally with the first protruding bar coupling part (2733a) for fixing. The other side of the central part (2733c) of the main body of the fixed rotating device is formed integrally with the second protruding bar coupling part (2733b) for fixing. The central part (2733c) of the main body of the fixed rotating device is extended in the aforementioned front-rear direction so that its inner surface faces the outer surface of the upper case (2600).

[0077] The release handle portion (2734) is integrally formed on the upper part of the portion facing the outer surface of the upper case (2600) while connected to the upper case (2600), where the fixing pivot device (2733) is connected. The release handle portion (2734) extends in a parabolic shape with a gradually decreasing inclination in the upward direction away from the outer surface of the upper case (2600) among the left and right directions.

[0078] The output connector module (3000) is detachably coupled to the other side (left side) of the body part (1000). Therefore, the output connector module (3000) can be separated from the body part (1000) and replaced. Thus, if a problem occurs where the body part (1000) cannot be used, it can be separated from the body part (1000) and reused. The output connector module (3000) outputs a signal filtered from the body part (1000) to an external device of the body part (1000). The output connector module (3000) is formed of a composite material including metal and an insulating material. However, the present invention is not limited thereto, and the material of the output connector module (3000) can be changed. In this embodiment, the output connector module (3000) is positioned on the opposite side of the input connector module (2000) with respect to the body part (1000).

[0079] The output connector module (3000) includes a second coupling plate (3100), a second output connector body (3200), a second output connector leg portion (3300), and a conductive line (3400). The second coupling plate (3100) is detachably coupled to the other side of the body portion (1000). The second coupling plate (3100) includes a second-1 coupling plate (3110), a second-2 coupling plate (3120), and a second coupling plate housing portion (3130).

[0080] The second-1 coupling plate (3110) has a rectangular shape. The inner surface of the second-1 coupling plate (3110) facing the body part (1000) is in close contact with the left and right ends of the body part (1000). The second-1 coupling plate (3110) has a second-1 center hole (3111) formed in the left and right directions so that a second conductive line for receiving a signal from the body part (1000) can pass through it.

[0081] In addition, a second coupling plate second-1 front coupling hole (3112) is formed on the front side of the second coupling plate second-1 center hole (3111) in the second coupling plate (3110). In addition, a second coupling plate second-1 rear coupling hole (3113) is formed on the rear side of the second coupling plate second-1 center hole (3111) in the second coupling plate (3110). Furthermore, a plurality of second coupling plate second-1 upper coupling holes (3124) are formed on the upper side of the second coupling plate second-1 center hole (3111) in the second coupling plate (3110) so as to be spaced apart in the front-rear direction.

[0082] The second-2 coupling plate (3120) has an outer surface facing the inner surface of the second-1 coupling plate (3110) and is integrally formed with the second-1 coupling plate (3110). The second-2 coupling plate (3120) protrudes in the direction of the input connector module (2000) and has a rectangular shape with a smaller cross-sectional area than the second-1 coupling plate (3110), thereby forming an edge portion and an edge portion step structure of the second-1 coupling plate (3110). Additionally, the second-2 coupling plate (3120) communicates with the second-1 center hole (3111) of the second coupling plate in the left and right directions.

[0083] And the second-2 connecting plate (3120) has a second-2 connecting plate center hole (3121) formed therein that is larger than the second-1 connecting plate center hole (3111), thereby forming a center step structure with the center of the second-1 connecting plate (3110). And the second-2 connecting plate (3120) is placed in the receiving space of the body part (1000). And on the upper side of the second-2 connecting plate (3120), a plurality of second-2 connecting plate upper connecting grooves (3124) are formed so as to be spaced apart in the front-rear direction for connection with the upper plate (1116) of the body part (1000).

[0084] And on the front side of the second-2 coupling plate (3120), a second-2 coupling plate front side coupling groove (3122) is formed in the front-rear direction for coupling with the front plate (1120) of the body part (1000). The second-2 coupling plate front side coupling groove (3122) is coupled with the front plate second coupling hole (1120b). And on the rear side of the second-2 coupling plate (3120), a second-2 coupling plate rear side coupling groove (not shown) is formed in the front-rear direction for coupling with the rear plate (1130) of the body part (1000). The second-2 coupling plate rear side coupling groove is coupled with the rear plate second coupling hole (1130b).

[0085] The second coupling plate housing portion (3130) is integrally formed on the outer surface of the second-1 coupling plate (3110). The second coupling plate housing portion (3130) extends in the direction of the second output connector leg portion (3300). The second coupling plate housing portion (3130) has a hollow formed inside to communicate with the second-1 center hole (3111) of the second coupling plate.

[0086] The second output connector body (3200) is detachably coupled to the second coupling plate (3100). The second output connector body (3200) is extended by penetrating the second coupling plate (3100) in the left and right directions. The second output connector body (3200) includes a second output connector plate portion (3210) and a second output connector case portion (3220).

[0087] The second output connector plate portion (3210) has a plate shape. The second output connector plate portion (3210) is formed with a structure corresponding to the central step structure formed in the second coupling plate (3100). In addition, the second output connector plate portion (3210) has a second output connector plate portion conductive line insertion hole (3211) formed in the left and right directions in the portion facing the second-1 center hole (3111) of the second coupling plate.

[0088] The second output connector body conductive line insertion holes (3211) are formed such that a plurality of them are spaced apart in the front-rear direction. On the front side of the second output connector body conductive line insertion holes (3211), the second coupling plate 2-1 front coupling hole (3112) and the second output connector plate part front coupling hole (3212) are formed in a straight line in the left-right direction. Then, among the second output connector plate part (3210), on the rear side of the second output connector body conductive line insertion holes (3211), the second coupling plate 2-1 rear coupling hole (3112) and the second output connector plate part rear coupling hole (3213) are formed in a straight line in the left-right direction.

[0089] And in the second output connector plate portion (3210), on the upper side of the second output connector body conductive line insertion hole (3211), each of the second coupling plate second-1 upper coupling holes (3114) and the second output connector plate portion upper coupling holes (3214) are formed in a straight line in the left and right directions.

[0090] The second output connector case portion (3220) has an elliptical cross-section. The second output connector case portion (3220) is integrally formed on the outer surface opposite to the inner surface facing the receiving space among the second output connector plate portion (3210). The second output connector case portion (3220) extends in the direction of the second output connector leg portion (3300) so as to protrude out of the second coupling plate housing portion (3130) through the hollow formed in the second coupling plate housing portion (3130).

[0091] The second output connector case portion (3220) has second output connector case portion conductive line insertion holes (3221) formed therein so as to communicate with the second output connector main body conductive line insertion holes (3211) in the left and right directions. Additionally, between the second output connector case portion (3220) and the second output connector case portion conductive line insertion holes (3221), a second output connector case portion insertion groove (3222) is formed to allow the second output connector leg portion (3300) to be inserted in the direction of the second output connector plate portion (3210) from the end facing the second output connector leg portion (3300). Furthermore, at the center of the second output connector case portion insertion groove (3222), a second output connector case portion coupling groove (3223) is formed in the direction of the second output connector plate portion (3210) for coupling with the second output connector leg portion (3300).

[0092] The second output connector leg portion (3300) is integrally formed at the end of the second output connector body (3200) that is positioned further away from the input connector module (2000). The second output connector leg portion (3300) has an elliptical shape corresponding to the second output connector case portion (3220).

[0093] A plurality of second output connector leg portion conductive line insertion holes (3310) are formed in the second output connector leg portion (3300) to communicate with the second output connector case portion conductive line insertion holes (3221). Additionally, between the second output connector leg portion (3300) and the second output connector leg portion conductive line insertion holes (3310), a second output connector leg portion protruding unit (3320) is formed to protrude in the direction of the second output connector case portion (3220) and be inserted into the second output connector case portion insertion groove (3222). Furthermore, a second output connector leg portion coupling hole (3330) is formed in the center of the second output connector leg portion protruding unit (3320) in the left and right directions to communicate with the second output connector case portion coupling groove (3223).

[0094] The conductive line (3400) is spaced apart in the front-rear direction that intersects the left-right direction. The conductive line (3400) extends from the second output connector leg portion (3300) through the second output connector body (3200) and the second coupling plate (3100) to the receiving space.

[0095] The heat dissipation unit (4000) is detachably coupled to the upper plate (1140) of the body part (1000). The heat dissipation unit (4000) is formed of aluminum. However, the present invention is not limited thereto, and the heat dissipation unit (4000) can be changed to copper or other materials. The heat dissipation unit (4000) serves to discharge heat from inside the case (1100) to the outside of the case (1100). In this embodiment, the heat dissipation unit (4000) is seated and fixed on the upper plate (1116) of the case (1100).

[0096] The connector interface (5000) is detachably coupled to the upper plate (1116) of the case (1100). The connector interface (5000) is positioned between the heat dissipation unit (4000) and the input connector (2000). At this time, the connector interface (5000) is positioned adjacent to the input connector (2000). However, the present invention is not limited thereto, and the position where the connector interface (1500) is positioned can be changed. The connector interface (5000) is formed from a composite material including metal and plastic. However, the present invention is not limited thereto, and the material of the connector interface (5000) can be changed.

[0097] Referring to FIGS. 21 to 24, an RF filter (2) according to another embodiment of the present invention includes a body part (1000'), an input connector module (2000'), an output connector module (3000'), a connection interface unit (not shown), a carbonization sensor module (6000'), and a control device (not shown). Compared to the RF filter (1) according to FIGS. 1 to 20, the RF filter (2) according to this embodiment differs in that it further includes a carbonization sensor module (6000') and the control device, does not include a heat dissipation unit, and has a structure of the body part (1000') for coupling with the carbonization sensor module (6000').

[0098] The body portion (1000') includes a bottom plate, a front plate (1120'), a rear plate, and a top plate (1140'). In this embodiment, the bottom plate, the front plate (1120'), and the rear plate are similar to the body portion (1000) of the RF filter (1) according to FIGS. 1 to 20, and the top plate (1140') differs from the top plate (1140) of the body portion (1000). Therefore, only the parts that differ will be described in detail.

[0099] On the upper plate (1140'), a pillar (1141') for connecting the sensor module cover is formed upward. In this embodiment, two pillars (1141') for connecting the sensor module cover are formed spaced apart in the front-rear direction so as to be adjacent to the input connector module (hereinafter referred to as "first pillars"). Additionally, two pillars (1141') for connecting the sensor module cover are formed spaced apart in the front-rear direction so as to be adjacent to the output connector module (hereinafter referred to as "second pillars"). Furthermore, two pillars (1141') for connecting the sensor module cover are formed in the front-rear direction (hereinafter referred to as "third pillars") in a portion adjacent to the center of the upper plate (1140'). That is, a total of six pillars (1141') for connecting the sensor module cover are formed on the upper plate (1140). However, the present invention is not limited thereto and the number and arrangement structure of the pillars (1141) for connecting the sensor module cover can be changed.

[0100] Each of the first, second, and third pillars has a cylindrical structure with a hollow formed inside and an open top. Additionally, screw threads are formed on the inner surface of the hollow of each of the pillars (1141') for connecting the sensor module cover.

[0101] A carbonization sensor module (6000') is installed to prevent carbonization. The carbonization sensor module (6000') continuously detects the air inside the receiving space of the body part (1000') and provides a carbonization risk signal when carbonization is expected to occur in the receiving space. The carbonization sensor module (6000') measures changes in the temperature and humidity of the receiving space of the body part (1000'), the composition of particles present in the receiving space, and the concentrations of volatile organic compounds and nitrogen oxides present in the receiving space.

[0102] In this embodiment, the carbonization sensor module (6000') predicts the risk of carbonization, particularly focusing on the rate of increase in temperature and the rate of increase in the concentrations of volatile organic compounds and nitrogen oxides. That is, if the rate of increase in temperature and the rate of increase in the concentrations of volatile organic compounds and nitrogen oxides exceed the set rate of increase in temperature, the rate of increase in the concentration of volatile organic compounds, and the rate of increase in the concentration of nitrogen oxides, it predicts that there is a risk of carbonization and transmits information to the control device.

[0103] Specifically, the carbonization sensor module (6000') includes a sensor module section (6100'), a circuit board section (6200'), and a sensor module cover (6300'). The sensor module section (6100') includes a sensor holder (6110') and a carbonization sensor (6120'). The sensor holder (6110') serves to secure the carbonization sensor (6120'). The sensor holder (6110') is placed on the upper plate (1140'). At this time, the sensor holder (6110') is placed closer to the output connector module (3000) than to the input connector module (2000).

[0104] The sensor holder (6110') includes a sensor holder center (6121'), a sensor holder first wing portion (6122'), a sensor holder second wing portion (6123'), and a sensor holder third wing portion (6124'). The sensor holder center (6121') is seated on the upper plate (1140'). The sensor holder center (6121') has a plate-shaped ring structure. That is, a sensor holder center hole (6121a') is formed in the sensor holder center (6121').

[0105] The sensor holder first wing portion (6122') is erected at the rear side of the sensor holder center (6121') and formed integrally. The sensor holder first wing portion (6122') has an overall rectangular shape.

[0106] The sensor holder second wing portion (6123') is erected to the left of the sensor holder center (6121') and formed integrally. The sensor holder second wing portion (6123') is similar to a structure in which the left side, rear side, and bottom surface are open in a rectangular prism with a hollow formed inside. At this time, the front side and right side have a rectangular shape, and the top surface has a trapezoidal shape. The right side is erected to one side of the sensor holder center (6121') and formed integrally. The front side is formed integrally on the front side of the right side and extends in the direction of the output connector. The top surface is formed integrally on the upper part of the right side and extends in the direction of the output connector. The sensor holder second wing portion (6123') has a sensor holder second wing portion first hole (6123a') and a sensor holder second wing portion second hole (6123b') formed therein.

[0107] The first hole (6123a') of the second wing portion of the sensor holder is formed in the vertical direction on the upper surface. At this time, the first hole (6123a') of the second wing portion of the sensor holder is positioned to face one of the sensor holder coupling holes (6320') described below and coupled.

[0108] The second hole (6123b') of the second wing portion of the sensor holder is formed in the left-right direction on the right side. The second hole (6123b') of the second wing portion of the sensor holder is formed in a rectangular shape.

[0109] The sensor holder third wing portion (6124') is formed integrally by being erected to the right of the sensor holder center (6121'). The sensor holder third wing portion (6124') has a structure that extends upward and is bent toward the input connector module (2000'). In the part of the sensor holder third wing portion (6124') bent toward the input connector module (2000'), a sensor holder third wing portion hole (6124') is formed in the vertical direction. The sensor holder third wing portion hole (6124') is positioned to face and be coupled with the other sensor holder coupling hole (6320').

[0110] The carbonization sensor (6120') is placed on the sensor holder (6110'). The carbonization sensor (6120') senses (measures) the specific component (set component) that changes due to the high heat of the component included in the RF filter (2) before carbonization occurs, the concentration of the specific component (set component), and the temperature and humidity of the space where the specific component (set component) exists, thereby predicting or detecting the occurrence of a fire. This prevents unintended shutdown of the equipment and protects the expensive semiconductor wafer.

[0111] The circuit board section (6200') is placed on the upper plate (1410'). The circuit board section (6200') is spaced apart from the carbonization sensor (6210') and is placed between the input connector module (2000') and the carbonization sensor (6210'). The circuit board section (6200') is connected to the carbonization sensor (6210') by a conductive line. The circuit board section (6200') receives a signal from the carbonization sensor (6210') and transmits it to the control device.

[0112] The sensor module cover (6300') is positioned to cover the circuit board portion (6200'), the sensor holder (6110'), and the carbonization sensor (6220'). The sensor module cover (6300') is fixed by being combined with the upper plate (1410') and the sensor holder (6110'). In this embodiment, the sensor module cover (6300') has a rectangular shape with an open bottom. Additionally, a storage space is formed inside the sensor module cover (6300').

[0113] In addition, a hole for connecting the lower plate (6310'), a hole for connecting the sensor holder (6320'), and a hole for penetrating the circuit board (6330') are formed on the upper surface of the sensor module cover (6300') so as to be spaced apart. The hole for connecting the lower plate (6310') is formed in an up-and-down direction for connection with the sensor module cover connecting filler (1141'). The holes for connecting the lower plate (6310') are formed in an up-and-down direction at a position facing the sensor module cover connecting filler (1141') in the same number as the sensor module cover connecting filler (1141').

[0114] A hole (6320') for connecting the sensor holder is formed for connection with the sensor holder (6120'). The hole (6320') for connecting the sensor holder is formed in an up-and-down direction at a position facing the sensor holder (6120').

[0115] A hole (6330') for penetrating the circuit board portion is formed to allow a portion of the circuit board portion (6100') to penetrate and protrude. That is, the hole (6330') for penetrating the circuit board portion is formed to avoid interference with the circuit board portion (6100').

[0116] The control device is connected to the carbonization sensor module (6000') via a wired or wireless network. The control device receives information regarding changes inside the body part (1000') measured by the carbonization sensor module (6000'). The control device can control the operation of the RF filter (2) to stop if the received information matches a preset criterion for the expected occurrence of carbonization.

[0117] To this end, the control device stores reference information in advance regarding the temperature and humidity inside the body part (1000'), the composition of particles present in the receiving space, and the concentration of volatile organic compounds and nitrogen oxides present in the receiving space, and the risk of carbonization when these levels are reached. Accordingly, the control device controls the operation of the RF filter (2) to stop when the temperature and humidity inside the body part (1000'), the composition of particles present in the receiving space, and the concentration of volatile organic compounds and nitrogen oxides present in the receiving space become consistent with the reference information, or when there is a sudden change in the temperature and humidity, the composition of particles present in the receiving space, and the concentration of volatile organic compounds and nitrogen oxides present in the receiving space in a direction consistent with the reference information, even if they do not.

[0118] The present invention has been described with reference to the embodiments illustrated in the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims. Explanation of the symbols

[0119] 1, 2: RF filter 1000, 1000`: Bodhibu 1100, 1100: Case 1110: Bottom plate 1120, 1120`: Front panel 1120a: Front panel first coupling hole 1120b: Front panel second coupling hole 1130: Rear panel 1130a: Rear plate first coupling hole 1130b: Rear plate second coupling hole 1140, 1140`: Top plate 1141`: Pillar for attaching sensor module cover 1200: Inductor 1210: First inductor 1220: Second inductor 1221: 2-1 Inductor 1222: 2-2 Inductor 1300: Capacitor 1310: First capacitor 1320: Second capacitor 2000: Input connector module 2100: First connecting plate 2110: First connecting plate main body 2111: Center hole of the first connecting plate 2112: Front groove of the first connecting plate 2113: Rear groove of the first connecting plate 2114: First connecting plate first lower groove 2115: First connecting plate second lower groove 2116: First connecting plate first angle adjustment hole 2117: First connecting plate second angle adjustment hole 2120: First connecting plate front connecting plate 2120a: Front coupling hole of the first coupling plate 2130: Rear connecting plate of the first connecting plate 2130a: Rear coupling hole of the first coupling plate 2140: First connecting plate lower side first connecting plate 2140a: First coupling hole on the lower side of the first coupling plate 2150: Second connecting plate on the lower side of the first connecting plate 2150a: Second coupling hole on the lower side of the first coupling plate 2200: First coupling plate inner coupling unit 2210: First coupling plate inner coupling unit body 2211: Center hole of the inner coupling unit of the first coupling plate 2212 First coupling plate inner coupling unit first coupling hole 2213: First coupling plate inner coupling unit second coupling hole 2214: Inner coupling unit groove of the first coupling plate 2220: Protrusion of the inner coupling unit of the first coupling plate 2300: First coupling plate outer coupling unit 2310: First connecting plate contact part 2311: First connecting plate outer connecting unit first center hole 2312: First connecting plate outer connecting unit first angle adjustment hole 2313: First coupling plate outer coupling unit second angle adjustment hole 2314: First coupling plate outer coupling unit first coupling hole 2315: First coupling plate outer coupling unit second coupling hole 2320: First connecting plate center hole insertion part 2321: First coupling plate outer coupling unit second center hole 2322: First coupling plate outer coupling unit first coupling groove 2323: First coupling plate outer coupling unit second coupling groove 2330: 1st Angle Fixed Module 2331: First Angle Fixing Module Body 2332: 1st Angle Fixed Module Ball Part 2340: Second Angle Fixed Module 2341: Second Angle Fixing Module Main Body 2342: Second angle fixed module ball part 2400: Lower case 2410: Lower case flange 2411: Lower case first coupling hole 2412: Lower case second coupling hole 2420: Lower case body 2421: Hole for fixing the input connector body 2500: Input connector body 2510: 1-1 Conductive line insertion hole 2520: 1st-2nd conductive line insertion hole 2530: 1st-3rd conductive line insertion hole 2600: Upper case 2610: Upper case body 2620: First protruding bar for fixing 2700: Case fixing module 2710: First fixing pin 2720: Second fixing pin 2730: Fixed pivot device 2731: First fixing pin coupling part 2732: Second fixing pin coupling part 2733: Main body of a fixed rotating device 2733a: First protruding bar coupling for fixing 2733b: Second protruding bar connection part for fixing 2733c: Center of the main body of a fixed rotating device 2800: First Challenge Line 2810: 1-1 Challenge Line 2820: 1st-2nd Conductivity Line 2830: 1st-3rd Conductivity Line 2734: Handle for release 3000: Output connector module 3100: Second connecting plate 3110: 2-1st combined plate 3111: Second connecting plate second-1 center hole 3112: Second connecting plate, 2-1 front connecting hole 3113: 2nd coupling plate 2-1st rear coupling hole 3114: Second connecting plate second-1 upper connecting hole 3120: 2-2nd combined plate 3130: Second connecting plate housing part 3121: Second connecting plate second-2 center hole 3122: Front coupling groove of the 2-2nd coupling plate 3124: Upper coupling groove of the 2-2nd coupling plate 3200: Second output connector body 3210: Second output connector plate 3211: Second output connector plate conductive line insertion hole 3212: Front coupling hole of the second output connector plate 3213: Rear coupling hole of the second output connector plate 3214: Upper coupling hole of the second output connector plate 3220: Second output connector case 3221: Second output connector case conductive line insertion hole 3222: Insertion groove for the second output connector case 3223: Second output connector case coupling groove 3300: Second output connector leg 3310: Conductive line insertion hole in the second output connector leg 3320: Second output connector leg protrusion unit 3330: Second output connector leg coupling hole 3400: Second conductive line 3410: 2-1 Challenge Line 3420: 2-2 Challenge Line 4000: Heat dissipation unit 5000: Connection Interface Unit 6000`: Carbonization sensor module 6100: Sensor module 6110: Carbonization sensor 6120`: Sensor holder 6121`: Sensor holder center 6121a`: Sensor holder center hole 6122`: Sensor holder first wing part 6123`: Sensor holder second wing part 6123a`: Sensor holder second wing part first hole 6123b`: Sensor holder second wing part second hole 6124`: Sensor holder third wing 6124a`: Sensor holder third wing hole 6100`: Circuit board section 6300`: Sensor module cover 6310: Hole for bottom plate connection 6320: Hole for sensor holder attachment 6330: Hole for penetrating the circuit board

Claims

Claim 1 A body part having an internal receiving space formed therein, and a filtering module that passes only desired frequency components or removes unnecessary frequency components disposed in the receiving space; and an input connector module coupled to one side of the body part, receiving an RF (Radio Frequency) signal from the outside and transmitting it to the body part. An RF filter comprising an output connector module coupled to the other side of the body portion and outputting a signal filtered from the body portion to the outside, wherein the input connector module is rotatably coupled to one side of the body portion and, while coupled to the body portion, can adjust the angle by rotating around the part coupled to the body portion to avoid interference with an external unit positioned adjacent to the outside of the body portion, and further comprises a carbonization sensor module that provides a carbonization risk signal when carbonization is expected to occur in the receiving space to prevent carbonization, wherein the carbonization sensor module senses at least the temperature of the receiving space and the concentrations of volatile organic compounds and nitrogen oxides present in the receiving space, and predicts that there is a risk of carbonization if the rate of increase of the temperature of the receiving space becomes greater than a set rate of increase of temperature and the rate of increase of the concentrations of volatile organic compounds and nitrogen oxides becomes greater than a set rate of increase of the concentrations of volatile organic compounds and nitrogen oxides. Claim 2 delete Claim 3 An RF filter according to claim 1, wherein the input connector module is detachably coupled to the body portion so as to be separated from the body portion and replaceable, and the output connector module is detachably coupled to the body portion so as to be separated from the body portion and replaceable, and if a problem occurs in which any one of the body portion, the input connector module, and the output connector module cannot be used, the remaining one in which the problem does not occur can be separated and reused. Claim 4 A body part having an internal receiving space formed therein, and a filtering module that passes only desired frequency components or removes unnecessary frequency components disposed in the receiving space; and an input connector module coupled to one side of the body part, receiving an RF (Radio Frequency) signal from the outside and transmitting it to the body part. and includes an output connector module coupled to the other side of the body part and outputting a signal filtered by the body part to the outside, wherein the input connector module is rotatably coupled to one side of the body part and, while coupled to the body part, can adjust the angle by rotating around the part coupled to the body part to avoid interference with an external unit arranged adjacent to the outside of the body part, wherein the body part is formed with a structure in which the one side to which the input connector module is coupled and the other side to which the output connector module is coupled are each open, and the input connector module comprises: a first coupling plate detachably coupled to one side of the body part; a first coupling plate inner coupling unit disposed in the receiving space and detachably coupled to the inner surface of the first coupling plate, which is the part where the first coupling plate faces the receiving space; a first coupling plate outer coupling unit disposed such that its inner surface faces the first coupling plate inner coupling unit with the first coupling plate in between, and detachably coupled to the outer surface of the first coupling plate; and on the outer surface of the first coupling plate outer coupling unit A lower case that is detachably coupled, has a first storage space formed inside, and has an open top; an input connector body that is inserted into the first storage space, has its top protruding above the top of the lower case, is detachably coupled to the lower case, and has a first conductive line disposed inside for receiving an RF signal from the outside;An RF filter comprising: an upper case that is seated on the upper part of a lower case such that a portion of the input connector body protruding higher than the upper part of the lower case is disposed in the second storage space, the upper case having a structure with an open upper and lower portion, and the lower part being coupled to the outer surface of the lower case and the upper part being detachably coupled to the upper case, so that the upper part is coupled to the upper case to fix the upper case to the lower case, or the coupling between the upper part and the upper case can be released so that the upper case can be separated while the upper case is fixed to the lower case. Claim 5 In claim 4, the first coupling plate has a rectangular shape, and a first coupling plate center hole for coupling the first coupling plate inner coupling unit and the first coupling plate outer coupling unit is formed in the center in the left-right direction to which the body part extends; on the front side corresponding to the front in the front-rear direction intersecting the left-right direction, a first coupling plate front groove is formed from the front side in the rear direction opposite to the front side, and on the rear side opposite to the front side, a first coupling plate rear groove is formed from the rear side in the front direction; on the lower side corresponding to the lower in the upper-lower direction intersecting the left-right direction and the front-rear direction, respectively, a first coupling plate lower groove is formed from the lower side in the upper direction opposite to the lower side, and on the lower side, a first coupling plate second lower groove is formed in a structure symmetrical to the first coupling plate lower groove with respect to the center of the lower side; the first coupling plate front side An RF filter comprising: a first coupling plate front coupling plate integrally formed in a groove and extending in the direction of the output connector module, having a first coupling plate front coupling hole formed in the front-rear direction; a first coupling plate rear coupling plate integrally formed in the first coupling plate rear groove and extending in the direction of the output connector module with the same length facing the first coupling plate front coupling plate, having a first coupling plate rear coupling hole formed in the front-rear direction; a first coupling plate lower first coupling plate integrally formed in the first coupling plate lower groove and extending in the direction of the output connector module, having a first coupling hole formed in the upper-lower direction; and a first coupling plate lower second coupling plate integrally formed in the first coupling plate second lower groove and extending in the direction of the output connector module with the same length parallel to the first coupling plate lower first coupling plate, having a first coupling plate lower second coupling hole formed in the upper-lower direction. Claim 6 In claim 5, the first coupling plate body is formed in a portion adjacent to the edge of the first coupling plate center hole, and a plurality of first coupling plate first angle adjustment holes are formed so as to be spaced by a first set angle in the upward direction from the center of the first coupling plate center hole in the vertical direction, along the circumferential direction of the first coupling plate center hole, such that a portion of the first coupling plate outer coupling unit rotates and at least a portion is inserted and caught so that it can maintain a fixed state unless an additional external force is applied; and a plurality of first coupling plate second angle adjustment holes are further formed so as to be spaced by the first set angle in a position symmetric to the first coupling plate first angle adjustment holes in the yz plane including the first coupling plate center hole, with the center of the first coupling plate center hole as the origin, such that a portion of the first coupling plate outer coupling unit rotates and at least a portion is inserted and caught so that it can maintain a fixed state unless an additional external force is applied, and the RF filter. Claim 7 In claim 6, the first coupling plate inner coupling unit is formed in a circular shape, and a first coupling plate inner coupling unit center hole is formed in the left-right direction so that a first conductive line for receiving a signal from the input connector module can pass through, and the first coupling plate inner coupling unit center hole has a cross-section formed in the shape of a first anchor, and a first coupling hole and a first coupling unit inner coupling unit second coupling hole are formed in the left-right direction, wherein the first coupling hole and the first coupling unit inner coupling unit second coupling hole are formed in a structure symmetrical in the front-back direction with respect to the first coupling plate inner coupling unit center hole, and a circular groove is formed in the center of the outer surface facing the first coupling plate so that a step structure is formed between the center and the edge of the outer surface, and the edge of the outer surface is a first coupling plate inner coupling unit body that is in close contact with the inner surface of the first coupling plate; An RF filter comprising a first coupling plate inner coupling unit protrusion integrally formed on the lower part of the first coupling plate inner coupling unit body, and protruding in a straight line direction with the upper part of the first anchor shape. Claim 8 In claim 7, the first coupling plate outer coupling unit has an overall hexagonal structure, wherein a first coupling plate outer coupling unit protrusion is formed at the center of the lower surface and protrudes downward, and each vertex portion is formed with a curved structure, and the edge portion among the inner surfaces is in close contact with the outer surface of the first coupling plate, and a first center hole of the first coupling plate outer coupling unit is formed in a second anchor shape corresponding to the center hole of the first coupling plate inner coupling unit along the left and right directions, and a first angle adjustment hole of the first coupling plate outer coupling unit is formed so as to be aligned in a straight line with at least one of the first angle adjustment holes of the first coupling plate in the left and right directions while the first center hole of the first coupling plate outer coupling unit is arranged to correspond to the center hole of the first coupling plate inner coupling unit, and in the state where the first center hole of the first coupling plate outer coupling unit is arranged to correspond to the center hole of the first coupling plate inner coupling unit, at least one of the second angle adjustment holes of the first coupling plate in the left and right directions and A first coupling plate contact portion having a second angle adjustment hole formed in the outer coupling unit of the first coupling plate so as to be arranged in a straight line, and a first coupling hole and a second coupling hole of the outer coupling unit of the first coupling plate for coupling with the lower case formed at positions symmetrical in the front-rear direction with respect to the first center hole of the outer coupling unit of the first coupling plate;A first coupling plate center hole insertion part is integrally formed at the center of the inner surface of the first coupling plate contact part and protrudes in the direction of the first coupling plate inner coupling unit, and when the first coupling plate contact part is in contact with the first coupling plate, it is inserted into the first coupling plate center hole and is inserted into and in contact with the first coupling plate inner coupling groove formed at the center of the first coupling plate inner coupling unit body, and a first coupling plate outer coupling unit second center hole is formed in a third anchor shape corresponding to the first coupling plate inner coupling unit center hole, and the first coupling plate outer coupling unit second center hole communicates with the first coupling plate outer coupling unit first center hole, and a first coupling groove of the first coupling plate outer coupling unit and a second coupling groove of the first coupling plate outer coupling unit for coupling with the first coupling plate inner coupling unit are formed in a straight line in the left and right directions with respect to each of the first coupling hole of the first coupling plate inner coupling unit and the second coupling hole of the first coupling plate inner coupling unit; A first angle fixing module inserted and fixed into a first angle adjustment hole of an outer coupling unit of a first coupling plate, wherein a portion of which protrudes from the first angle adjustment hole of the outer coupling unit of the first coupling plate toward the first coupling plate and can be inserted into at least one of the first angle adjustment holes of an inner coupling unit of the first coupling plate; and a second angle fixing module inserted and fixed into a second angle adjustment hole of the outer coupling unit of the first coupling plate, wherein a portion of which protrudes from the second angle adjustment hole of the outer coupling unit of the first coupling plate toward the first coupling plate and can be inserted into at least one of the second angle adjustment holes of the inner coupling unit of the first coupling plate, wherein the first angle fixing module is inserted into the first angle adjustment hole of the outer coupling unit of the first coupling plate and extends to an end facing the first coupling plate, and comprises a first angle fixing module body;An RF filter comprising a first angle fixing module ball portion that is coupled to an end portion of the first angle fixing module body that extends to face the first coupling plate, and is compressed inwardly when in contact with a flat outer surface of the first coupling plate, and is inserted into the first angle adjustment hole of the first coupling plate when facing the first angle adjustment hole of the first coupling plate, wherein the first coupling plate inner coupling unit and the first coupling plate outer coupling unit are fixed by a fastening member that passes sequentially through the first coupling plate inner coupling unit and the first coupling plate inner coupling unit and is fixed to the first coupling groove of the first coupling plate outer coupling unit and the second coupling groove of the first coupling plate outer coupling unit, respectively. Claim 9 In claim 8, the lower case has an overall hexagonal structure corresponding to the structure of the first coupling plate outer coupling unit, wherein each vertex portion is formed as a curved structure, and the inner surface facing the first coupling plate outer coupling unit is fixed in close contact with the first coupling plate outer coupling unit, and for coupling with the first coupling plate outer coupling unit, the lower case first coupling hole and the lower case second coupling hole are formed in a straight line with the first coupling hole of the first coupling plate outer coupling unit and the second coupling hole of the first coupling plate outer coupling unit in the left and right directions; and an input connector having a rectangular shape with a width narrower than the width at which the lower case first coupling hole and the lower case second coupling hole are spaced apart, disposed between the lower case first coupling hole and the lower case second coupling hole, and integrally formed with the inner surface in close contact with the outer surface of the case flange portion, having the first storage space formed inside, the top being open, and inserted into the first storage space. The lower case body includes a hole for fixing the input connector body in the left and right directions formed on the outer surface to fix the main body, and the upper case has the second storage space formed inside, the upper and lower ends are open, the lower end is widened to form a stepped portion, and the lower case body is inserted into the stepped portion and is seated on the lower case; the upper case body includes a first fixing protrusion bar formed to protrude in the front direction on the front side of the outer surface of the upper case body; and a second fixing protrusion bar formed to protrude in the front direction on the rear side of the outer surface of the upper case body; and the case fixing module includes a first fixing pin formed to protrude in the front direction on the front side of the outer surface of the lower case body; and a second fixing pin formed to protrude in the front direction on the rear side of the outer surface of the lower case body.One side is coupled to the first fixing pin and rotates around a virtual central axis extending parallel to the y-axis forming an xy plane, and the other side is coupled to the second fixing pin and rotates around the virtual central axis, thereby including a fixing pivot device that detachably connects the upper case to the lower case; the fixing pivot device includes a first fixing pin coupling part in which the first fixing pin penetrates and is coupled to the lower part so as to be rotatable when coupled to the upper case, and the portion facing the body part is formed with a concave structure to have a first curved surface structure, and the first curved surface structure is in close contact with the first fixing protrusion bar; and in which the second fixing pin penetrates and is coupled to the lower part so as to be rotatable when coupled to the upper case, the portion facing the body part is formed with a concave structure to have a second curved surface structure, and the second curved structure is in close contact with the second fixing protrusion bar, and is symmetrically structured with respect to the first fixing pin coupling part and the lower case body. A second fixing pin coupling portion formed; a fixing pivot device body that is integrally coupled with the first fixing pin coupling portion and the second fixing pin coupling portion, respectively, while coupled with the upper case, and is arranged to surround the upper case; and a release handle portion that is integrally formed on the upper portion of the part of the fixing pivot device facing the outer surface of the upper case while coupled with the upper case, and extends in a parabolic shape with a gradually decreasing inclination in the upward direction away from the outer surface of the upper case among the left and right directions, wherein the fixing pivot device body comprises: a first fixing protruding bar coupling portion that extends in the left and right directions while coupled with the upper case and to which the first fixing pin coupling portion is coupled to the lower side; and a second fixing protruding bar coupling portion that extends in the left and right directions while coupled with the upper case and to which the second fixing pin coupling portion is coupled to the lower side.An RF filter comprising a central part of a fixing pivot device body, wherein one side is integrally formed with the first fixing protruding bar coupling part and the other side is integrally formed with the second fixing protruding bar coupling part, and extending in the front-rear direction so that the inner surface faces the outer surface of the upper case. Claim 10 A body part having an internal receiving space formed therein, and a filtering module that passes only desired frequency components or removes unnecessary frequency components disposed in the receiving space; and an input connector module coupled to one side of the body part, receiving an RF (Radio Frequency) signal from the outside and transmitting it to the body part. The output connector module is coupled to the other side of the body portion and outputs a signal filtered by the body portion to the outside. The input connector module is rotatably coupled to one side of the body portion and can adjust its angle by rotating around the part coupled to the body portion while coupled to the body portion to avoid interference with an external unit positioned adjacent to the outside of the body portion. The body portion is formed with a structure that extends in the left-right direction and has an open side to which the output connector module is coupled. The output connector module comprises: a second coupling plate detachably coupled to the other side of the body portion; a second output connector body detachably coupled to the second coupling plate and extending by penetrating the second coupling plate in the left-right direction; and a second output connector leg portion integrally formed at the end of the second output connector body that is positioned further away from the input connector module.and includes a plurality of conductive lines that are spaced apart in the front-rear direction intersecting the left-right direction and extend from the second output connector leg portion to the receiving space by penetrating the second output connector body and the second coupling plate, wherein the second coupling plate has a rectangular shape, and an inner surface facing the body portion is in close contact with the left-right end portion of the body portion, and a second coupling plate 2-1 center hole is formed in the left-right direction to allow a conductive line for receiving a signal from the body portion to pass through, a second coupling plate 2-1 front coupling hole is formed on the front side of the second coupling plate 2-1 center hole, a second coupling plate 2-1 rear coupling hole is formed on the rear side of the second coupling plate 2-1 center hole, and a plurality of second coupling plate 2-1 upper coupling holes are formed on the upper side of the second coupling plate 2-1 center hole so as to be spaced apart in the front-rear direction; and the inner surface of the second coupling plate 2-1 and The facing outer surface is integrally formed with the second-1 coupling plate and protrudes in the direction of the input connector, and has a rectangular shape with a cross-sectional area smaller than that of the second-1 coupling plate to form an edge portion step structure, and a second-2 coupling plate center hole is formed that communicates with the second-1 coupling plate center hole in the left and right directions and is larger in size than the second-1 coupling plate center hole, thereby forming a center portion step structure with the center of the second-1 coupling plate, and is disposed in the receiving space of the body part, and on the upper surface, a plurality of second-2 coupling plate upper surface coupling grooves are formed spaced apart in the front-rear direction for coupling with the upper plate of the body part, and on the front surface, a second-2 coupling plate front side coupling groove is formed in the front-rear direction for coupling with the front plate of the body part, and on the rear surface, a second-2 coupling plate rear side coupling groove is formed in the front-rear direction for coupling with the rear plate of the body part. 2-2 connecting plate;The second output connector housing part is integrally formed on the outer surface of the second-1 coupling plate, extends in the direction of the second output connector leg part, and has a hollow formed therein to communicate with the second-1 center hole of the second coupling plate; the second output connector body has a plate shape and is formed with a structure corresponding to the central step structure formed in the second coupling plate; a second output connector plate part conductive line insertion hole is formed in the left-right direction in the part facing the second-1 center hole of the second coupling plate, and a plurality of second output connector body conductive line insertion holes are formed spaced apart in the front-rear direction; a second output connector plate part front coupling hole is formed in a straight line in the left-right direction with the second-1 front coupling hole of the second coupling plate on the front side of the second output connector body conductive line insertion hole, and a second output connector plate part rear coupling hole is formed in a straight line in the left-right direction with the second-1 rear coupling hole of the second coupling plate on the rear side of the second output connector body conductive line insertion hole. A second output connector plate portion having a hole formed therein, wherein upper side of the second output connector body conductive line insertion hole, each of the second coupling plate 2-1 upper side coupling holes and upper side coupling holes of the second output connector plate portion are formed in a straight line in the left and right directions;The second output connector case part has an elliptical cross-section and is integrally formed on the outer surface opposite to the inner surface facing the receiving space among the second output connector plate parts, and extends in the direction of the second output connector leg part so as to protrude out of the second coupling plate housing part through a hollow formed in the second coupling plate housing part, and each second output connector case part conductive line insertion hole is formed internally to communicate with the second output connector main body conductive line insertion holes in the left and right directions, and between the second output connector case part holes, a second output connector case part insertion groove is formed at the end facing the second output connector leg part to allow the second output connector leg part to be inserted in the direction of the second output connector plate part, and a second output connector case part coupling groove is formed in the center of the second output connector case part insertion groove in the direction of the second output connector plate part for coupling with the second output connector leg part, and the second output connector leg part has an elliptical shape corresponding to the second output connector case part. An RF filter having a plurality of second output connector leg portion conductive line insertion holes formed to communicate with the second output connector case portion conductive line insertion holes, and between the second output connector leg portion conductive line insertion holes, a second output connector leg portion protruding unit is formed to protrude in the direction of the second output connector case portion and be inserted into the second output connector case portion insertion groove, and a second output connector leg portion coupling hole is formed in the center of the second output connector leg portion protruding unit in the left and right directions to communicate with the second output connector case portion coupling groove. Claim 11 The RF filter according to claim 1, wherein the body part comprises: a lower plate; a front plate formed integrally by being erected on the front side of the lower plate; a rear plate formed integrally by being erected on the rear side of the lower plate; and an upper plate that is seated on the front plate and the rear plate and is detachably coupled thereto; and the carbonization sensor module comprises: a sensor holder disposed on the upper plate and positioned closer to the output connector module than to the input connector module; a carbonization sensor disposed on the sensor holder and predicting carbonization occurrence; a circuit board part disposed on the upper plate and spaced apart from the carbonization sensor and positioned between the input connector module and the carbonization sensor, connected to the carbonization sensor by a conductive line, and receiving a signal from the carbonization sensor and transmitting it to a control device that controls the operation of the RF filter; and a sensor module cover disposed to cover the circuit board part, the sensor holder, and the carbonization sensor, and coupled to and fixed with the upper plate and the sensor holder.

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