Connector and radio frequency filter having the same

Abstract

A connector is disclosed that can provide a stable electrical connection without a separate adapter or cable through a structure that allows direct contact with a connected object. The connector comprises a connection pin for transmitting an electrical signal, a dielectric including a dielectric hole into which the connection pin is inserted, a shell body inserted into a first installation hole of an object to be installed, and a shell including a shell hole into which the dielectric is inserted. The connection pin comprises a connection terminal having a hollow disposed therein, a contact terminal movably inserted into the hollow so as to protrude from the dielectric, and an elastic member disposed in the hollow to apply an elastic force to the contact terminal in a direction protruding from the dielectric.

Description

Technology Field

[0001] The present invention relates to a connector, and more specifically, to a connector configured to transmit an electrical signal and a radio frequency filter including the same. Background Technology

[0002] Generally, connectors are key components that provide electrical connections between boards or between electronic devices and boards. Connectors must minimize signal loss while maintaining a stable electrical connection, and they are required to be easy to assemble.

[0003] Connectors are used to transmit electrical signals or current in various devices and fields, such as electronic devices and communication equipment. For example, connectors are essential in radio frequency filters for the electrical connection between circuit boards and electronic components.

[0004] A radio frequency filter is a device that selectively passes only signals within a specific frequency band from an input frequency signal, and it is widely used, particularly in base stations of mobile communication systems, for filtering high-frequency signals.

[0005] A radio frequency filter consists of a housing with an open top surface and a cover covering it. The housing and the cover are made of a metal such as aluminum. Inside the housing, multiple cavities separated by partitions are arranged, and within each cavity, a resonant element composed of a dielectric resonant element or a metal resonant rod is placed. The resonant element is electrically connected to a connection target, such as a circuit board, through a connector.

[0006] Connectors used in conventional radio frequency filters required separate adapters or cables for connection to the target object. This structure had problems such as insertion loss due to the use of adapters or cables, as well as increased manufacturing costs and complexity in the production process caused by the additional assembly steps.

[0007] Furthermore, conventional connectors lacked sufficient bonding strength with the installation target, which could lead to reduced connection reliability due to vibration or shock. In addition, there was a problem of high-frequency signal leakage caused by structural limitations between the connector and the dielectric. Prior art literature

[0008] Registered Patent No. 2617397 (December 19, 1023) The problem to be solved

[0009] The problem that the present invention aims to solve is to provide a connector capable of providing a stable electrical connection without a separate adapter or cable through a structure that allows direct contact with a connected object, and a radio frequency filter including the same.

[0010] In addition, the problem that the present invention aims to solve is to provide a connector that has excellent bonding strength with an object to be installed and can effectively prevent leakage of electrical signals, and a radio frequency filter including the same.

[0011] The problems of the present invention are not limited to those mentioned above, and other unmentioned problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0012] To solve the problem described above, a connector according to one embodiment of the present invention comprises: a connection pin for transmitting an electrical signal; a dielectric including a dielectric hole into which the connection pin is inserted; and a shell including a shell body inserted into a first installation hole of an object to be installed and a shell including a shell hole into which the dielectric is inserted. The connection pin comprises: a connection terminal having a hollow disposed therein; a contact terminal movably inserted into the hollow so as to protrude from the dielectric; and an elastic member disposed in the hollow to apply an elastic force to the contact terminal in a direction protruding from the dielectric.

[0013] The above shell may further include an uneven surface disposed on the outer circumference of the shell body to contact the inner surface of the object to be installed.

[0014] The shell may further include an internal detent protruding from the inner surface of the shell body to contact the outer surface of the dielectric.

[0015] The above dielectric may include a first dielectric body accommodated in the shell hole; and a second dielectric body having a smaller diameter than the first dielectric body and protruding from the shell to be inserted into a second installation hole of the installation target connected to the first installation hole.

[0016] The shell further includes an inner rim disposed at the end of the shell body, and the dielectric comprises a first dielectric body press-fitted into the shell body; a second dielectric body having a smaller diameter than the first dielectric body and extending from the first dielectric body to press-fitted into the inner rim, and the second dielectric body may protrude from the shell.

[0017] The shell may further include a shell ledge disposed on the inner rim so as to protrude from the inner surface of the shell body, and the dielectric may further include a dielectric ledge disposed on the first dielectric body so as to contact the shell ledge.

[0018] The above connection terminal may include an external detent protruding from the outer surface of the connection terminal to contact the inner surface of the dielectric.

[0019] The above connection terminal may include a hollow body in which the hollow is disposed; and a cap inserted into the hollow to support one end of the elastic member.

[0020] The above hollow body may include a first body inserted into the dielectric hole; and a second body connected to the end of the first body so as not to pass through the dielectric hole, the second body having a larger diameter than the first body and contacting the end of the dielectric.

[0021] The hollow body further includes an inner ledge disposed in the second body to protrude from the inner surface of the first body; and an outer ledge disposed in the second body to protrude from the outer surface of the first body, and the contact terminal may include a contact projection protruding from the second body to contact a connected object; a head disposed inside the first body to contact the elastic member, having a larger diameter than the contact projection; and a contact terminal ledge disposed in the head to contact the inner ledge.

[0022] The shell further includes a shell ledge protruding from the inner surface of the shell body, the dielectric includes a dielectric ledge positioned to contact the shell ledge, and the connection terminal further includes an outer ledge positioned outside the dielectric to contact the outer surface of the dielectric, the dielectric ledge is configured to be pressed toward the shell ledge by the reaction force applied by the connection target to the contact terminal when the contact terminal contacts the connection target, and the outer ledge may be configured to be pressed toward the outer surface of the dielectric by the reaction force applied by the connection target to the contact terminal when the contact terminal contacts the connection target.

[0023] To solve the problem described above, a connector according to another embodiment of the present invention comprises: a connection pin for transmitting an electrical signal; a dielectric including a dielectric hole into which the connection pin is inserted; and a shell including a shell body that is press-fitted into a first installation hole of an object to be installed and a shell into which the dielectric is inserted, wherein the dielectric comprises: a first dielectric body that is received in the shell hole; and a second dielectric body that has a smaller diameter than the first dielectric body and protrudes from the shell to be press-fitted into a second installation hole of an object to be installed that is connected to the first installation hole.

[0024] To solve the problem described above, a radio frequency filter according to one embodiment of the present invention comprises: a housing including a receiving space and a first installation hole connected to the receiving space; a resonant element disposed in the receiving space; and a connector coupled to the housing to be electrically connected to the resonant element, wherein the connector comprises: a connecting pin including a connecting terminal electrically connected to the resonant element and having a hollow disposed therein, a contact terminal movably inserted into the hollow, and an elastic member disposed in the hollow to apply an elastic force to the contact terminal in a direction protruding from the connecting terminal; a dielectric including a dielectric hole into which the connecting pin is inserted; and a shell including a shell body inserted into the first installation hole and a shell hole into which the dielectric is inserted.

[0025] The above housing further comprises a mounting floor disposed between the receiving space and the first installation hole; and a second installation hole disposed in the mounting floor to connect the receiving space and the first installation hole, wherein the shell is inserted into the first installation hole so as to be in contact with the mounting floor, and the dielectric can be press-fitted into the second installation hole. Effects of the invention

[0026] According to the present invention, since the shell is press-fitted to the object to be installed such that the uneven surface of the shell presses against the inner surface of the object to be installed, the stability of the connection with the object to be installed is significantly improved. Accordingly, durability against external shocks or vibrations is increased, and a stable electrical connection can be maintained even during long-term use.

[0027] In addition, according to the present invention, a shell including an uneven surface surrounds a dielectric, so that leakage of electrical signals can be effectively prevented.

[0028] In addition, according to the present invention, since the connection pin transmitting the electrical signal is connected in a manner that directly contacts the object to be connected, problems such as insertion loss, increased weight, and increased process steps caused by the use of adapters or cables can be resolved.

[0029] In addition, according to the present invention, the shell is first press-fitted into a first installation hole of the object to be installed, and the dielectric is secondarily press-fitted into a second installation hole of the object to be installed connected to the first installation hole, so the bonding force with the object to be installed can be significantly increased.

[0030] In addition, since the connector according to the present invention facilitates assembly between components and ensures a robust connection between components, the efficiency of the manufacturing process can be improved and product reliability can be ensured.

[0031] The various and beneficial advantages and effects of the present invention are not limited to those described above, and even more diverse effects are included in this specification. Brief explanation of the drawing

[0032] FIG. 1 is a perspective view showing a connector according to one embodiment of the present invention. FIG. 2 is a cross-sectional view showing a connector according to one embodiment of the present invention. FIG. 3 is an exploded perspective view showing a connector according to one embodiment of the present invention. FIG. 4 is an exploded perspective view of a connector according to one embodiment of the present invention, viewed from a different direction. FIG. 5 is a perspective view showing the shell of a connector according to one embodiment of the present invention cut open. FIG. 6 is a plan view showing a radio frequency filter to which a connector according to one embodiment of the present invention is applied. Figure 7 is a cross-sectional view of the radio frequency filter shown in Figure 6. FIG. 8 is a perspective view showing a part of the radio frequency filter shown in FIG. 6. FIG. 9 is a cross-sectional view showing the radio frequency filter shown in FIG. 6 connected to a target object. Specific details for implementing the invention

[0033] The advantages and features of this specification and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, this specification is not limited to the embodiments disclosed below but may be implemented in various different forms, and these embodiments are provided merely to ensure that the disclosure of this specification is complete and to fully inform those skilled in the art of the scope of this specification.

[0034] Shapes, areas, ratios, angles, numbers, etc. disclosed in the drawings for explaining the embodiments of this specification are exemplary, and this specification is not limited to the depicted details. Throughout the specification, the same reference numerals refer to the same components. Furthermore, in describing this specification, if it is determined that a detailed description of related prior art could unnecessarily obscure the essence of this specification, such detailed description is omitted. Where terms such as "includes," "has," or "is made up" are used in this specification, other parts may be added unless "only" is used. Where a component is expressed in the singular, it includes cases where it is included in the plural unless specifically stated otherwise.

[0035] In interpreting the components, they are interpreted to include a margin of error even in the absence of a separate explicit statement.

[0036] In the case of describing a positional relationship, for example, when the positional relationship between two parts is described using expressions such as 'on,' 'upper,' 'lower,' or 'next to,' one or more other parts may be located between the two parts unless 'immediately' or 'directly' is used.

[0037] Additionally, terms such as "first," "second," etc., are used to describe various components, but these components are not limited by these terms. These terms are used merely to distinguish one component from another.

[0038] Throughout the specification, the same reference numerals refer to the same components.

[0039] The area and thickness of each component shown in the drawings are illustrated for convenience of explanation and are not necessarily limited to the area and thickness of the components illustrated in this specification.

[0040] In the embodiments, a 'module' or 'part' performs at least one function or operation and may be implemented in hardware or software, or a combination of hardware and software. Additionally, a plurality of 'modules' or a plurality of 'parts' may be integrated into at least one module, except for the 'module' or 'part' that needs to be implemented in specific hardware.

[0041] The features of each of the various embodiments of this specification may be combined or combined with one another, either partially or wholly, and may technically enable various interlocking and operation. Each embodiment may be implemented independently of one another or may be implemented together in an associated relationship.

[0042] The present invention will be described below with reference to the drawings.

[0043] FIG. 1 is a perspective view showing a connector according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing a connector according to an embodiment of the present invention. FIG. 3 is an exploded perspective view showing a connector according to an embodiment of the present invention. FIG. 4 is an exploded perspective view of a connector according to an embodiment of the present invention viewed from a different direction.

[0044] As shown in the drawing, a connector (100) according to one embodiment of the present invention comprises a shell (110), a dielectric (120) disposed inside the shell (110), and a connection pin (130) disposed inside the dielectric (120) to transmit an electrical signal. The connector (100) according to one embodiment of the present invention may be installed in various devices, such as radio frequency filters and antennas, to transmit a signal.

[0045] Referring to FIGS. 1 through 5, the shell (110) includes a shell hole (111) into which a dielectric (120) is inserted. The shell (110) is press-fitted to the object of installation in a manner that allows it to be inserted into the object of installation.

[0046] The shell (110) includes a shell body (114) and an inner rim (118) disposed at the end of the shell body (114). A shell hole (111) is disposed to penetrate the shell body (114) and the inner rim (118). Specifically, the shell hole (111) includes a first hole (112) disposed inside the shell body (114) and a second hole (113) disposed inside the inner rim (118). The diameter of the second hole (113) is smaller than the diameter of the first hole (112). This two-stage structure of the shell hole (111) enables stable insertion and fixation of the dielectric (120).

[0047] An uneven surface (115) that contacts the inner surface of the object to be installed is disposed on the outer surface of the shell body (114). The uneven surface (115) includes a plurality of protrusions (116) spaced apart along the outer surface of the shell body (114). The protrusions (116) protrude from the outer surface of the shell body (114) so ​​as to be able to press against the inner surface of the object to be installed. The plurality of protrusions (116) increase the bonding force between the shell (110) and the object to be installed, and prevent the problem of the shell (110) being detached due to vibration or impact while bonded to the object to be installed.

[0048] An internal detent (117) is disposed on the inner surface of the shell body (114). The internal detent (117) protrudes from the inner surface of the shell body (114) to press against the outer surface of the dielectric (120). The internal detent (117) is formed such that the height of its protrusion from the inner surface of the shell body (114) gradually increases in the direction in which the dielectric (120) is inserted into the shell (110). Due to the structure of this internal detent (117), the bonding force between the dielectric (120) and the shell (110) is increased, and the dielectric (120) can be smoothly inserted into the shell hole (111) during the assembly process of the dielectric (120) and the shell (110).

[0049] The inner rim (118) has a shape that protrudes from the inner surface of the shell body (114) toward the center of the shell hole (111) so as to contact the outer surface of the dielectric (120). A shell ledge (119) is disposed on the inner rim (118). The shell ledge (119) is disposed to protrude from the inner surface of the shell body (114). The shell ledge (119) limits the insertion depth of the dielectric (120) by contacting a part of the dielectric (120) when the dielectric (120) is inserted into the shell hole (111), and prevents the dielectric (120) from passing through the shell hole (111) in the direction of insertion into the shell hole (111).

[0050] The shell (110) can be made of a material that can prevent leakage of electrical signals through the connection pin (130), such as metal.

[0051] The specific configuration of the shell (110) is not limited to that depicted and can be varied. For example, although the shell ledge (119) is shown in the drawing as being in a ring shape, the shell ledge (119) may be in an arc shape. In this case, a plurality of shell ledges (119) may be spaced apart along the inner circumference of the shell body (114).

[0052] Referring to FIGS. 1 to 4, the dielectric (120) includes a dielectric hole (121) into which a connection pin (130) is inserted. The dielectric (120) is press-fitted to the shell (110) by inserting it into the shell hole (111) through one end of the shell (110).

[0053] The dielectric (120) includes a first dielectric body (122) disposed in a first hole (112) of the shell (110) and a second dielectric body (123) connected to the first dielectric body (122) so as to be inserted into a second hole (113). The diameter of the second dielectric body (123) is smaller than the diameter of the first dielectric body (122). The second dielectric body (123) has a diameter and length that can pass through the second hole (113) and protrude from the shell (110).

[0054] The dielectric (120) is coupled to the installation target separately from the shell (110). For example, as shown in FIGS. 7 and 9, the dielectric (120) can be coupled to the housing (210) of the radio frequency filter (200) separately from the shell (110).

[0055] Accordingly, the connector (100) can be coupled to the installation target with a double press-fit coupling structure. Specifically, the shell (110) can be press-fit coupled to the installation target, and the dielectric (120) can also be press-fit coupled to the installation target. Accordingly, the coupling force between the connector (100) and the installation target can be increased.

[0056] A dielectric ledge (124) is disposed in the first dielectric body (122) and contacts the shell ledge (119) of the shell (110). The dielectric ledge (124) is disposed to protrude from the outer surface of the first dielectric body (122). By the dielectric ledge (124) contacting the shell ledge (119), the dielectric (120) can be stably maintained in connection with the shell (110).

[0057] The dielectric (120) is coupled to the shell (110) by being inserted into the shell hole (111) from one end of the shell (110). When the dielectric (120) is inserted into the shell hole (111), the outer surface of the first dielectric body (122) contacts the inner surface of the shell body (114), and the outer surface of the second dielectric body (123) contacts the inner surface of the inner rim (118). Additionally, the inner detent (117) of the shell (110) presses against the outer surface of the first dielectric body (122), and the dielectric ledge (124) contacts the shell ledge (119). Thus, assembly of the shell (110) and the dielectric (120) is easy, and the shell (110) and the dielectric (120) can be firmly coupled.

[0058] The shell (110) and the dielectric (120) maintain coupling stability even when the connector (100) is in use. Specifically, when the contact terminal (131) contacts the object to be connected (O; see FIG. 7), the dielectric ledge (124) is pressed toward the shell ledge (119) by the reaction force applied by the object to be connected (O) to the contact terminal (131). Therefore, when the connector (100) is connected to the object to be connected (O), the coupling force between the shell (110) and the dielectric (120) is not reduced, and the connector (100) can stably transmit an electrical signal.

[0059] Referring to FIGS. 1 to 4, the connection pin (130) is configured to transmit an electrical signal. The connection pin (130) is inserted into the dielectric hole (121) of the dielectric (120) such that both ends protrude from the shell (110).

[0060] The connection pin (130) includes a contact terminal (131) that contacts a connection target (O), a connection terminal (136) that includes a hollow (138) that partially accommodates the contact terminal (131), and an elastic member (146) disposed inside the connection terminal (136) to apply elastic force to the contact terminal (131).

[0061] The contact terminal (131) is coupled to the connection terminal (136) so as to be electrically connected to the connection terminal (136). The contact terminal (131) is partially inserted into the hollow (138) of the connection terminal (136) so as to protrude from the shell (110). Specifically, the contact terminal (131) is movably inserted into the hollow (138) and protrudes from one end of the connection terminal (136) by the elastic force of the elastic member (146).

[0062] The contact terminal (131) includes a contact projection (132) that contacts a connection target (O) and a head (133) connected to the contact projection (132) to be received in a hollow (138). The end of the contact projection (132) may have a rounded surface to stably contact the connection target (O). The diameter of the head (133) is larger than the diameter of the contact projection (132).

[0063] A contact terminal ledge (134) is disposed on the head (133) and protrudes from the outer surface of the contact projection (132). As the contact terminal ledge (134) contacts a part of the connection terminal (136), the head (133) cannot be separated from the connection terminal (136) through one end of the connection terminal (136).

[0064] The specific configuration of the contact terminal (131) is not limited to that shown and can be varied.

[0065] A conductive member (C) connected to a resonant element (250) or a conductive member (C) connected to a low-pass filter (290) is connected to the connection terminal (136). The connection terminal (136) includes a hollow body (137) in which a hollow (138) is disposed and a cap (144) coupled to the end of the hollow body (137).

[0066] The hollow body (137) includes a first body (139) inserted into a dielectric hole (121) and a second body (140) connected to the end of the first body (139) to contact the end of the dielectric (120).

[0067] The first body (139) has a diameter and length that are inserted into the dielectric hole (121) and protrude from the dielectric (120). An external detent (141) is disposed on the outer surface of the first body (139).

[0068] The outer detent (141) protrudes from the outer surface of the first body (139) to press against the inner surface of the dielectric (120). The outer detent (141) is formed such that the height of its protrusion from the outer surface of the first body (139) gradually increases as it approaches the second body (140). Accordingly, during the process of coupling the connection pin (130) with the dielectric (120), the first body (139) can be smoothly inserted into the dielectric hole (121), and the coupling force between the first body (139) and the dielectric (120) can be increased.

[0069] The second body (140) has a diameter that cannot pass through the dielectric hole (121). The diameter of the second body (140) is larger than the diameter of the first body (139). The end of the second body (140) may be located coplanar with the end of the shell (110).

[0070] An outer ledge (142) and an inner ledge (143) are disposed on the second body (140). The outer ledge (142) is disposed on the second body (140) so as to protrude from the outer surface of the first body (139). The outer ledge (142) contacts the end of the first dielectric body (122). During the process of inserting the connection pin (130) into the dielectric hole (121), the outer ledge (142) contacts the end of the first dielectric body (122), thereby limiting the insertion depth of the connection pin (130) and allowing the dielectric (120) and the connection pin (130) to be stably maintained in connection.

[0071] Additionally, when the contact terminal (131) contacts the object to be connected (O), the external ledge (142) is pressed toward the dielectric (120) by the reaction force applied by the object to be connected (O) to the contact terminal (131). Therefore, when the connector (100) is connected to the object to be connected (O), the coupling force between the dielectric (120) and the connection pin (130) is not reduced, and a stable coupling between the dielectric (120) and the connection pin (130) can be maintained.

[0072] The inner ledge (143) is positioned in the second body (140) so as to protrude from the inner circumference of the first body (139). The inner ledge (143) is configured to contact the contact terminal ledge (134) of the contact terminal (131). By the contact terminal ledge (134) contacting the inner ledge (143), the head (133) of the contact terminal (131) cannot pass through the second body (140), and the protruding length of the contact projection (132) protruding from the second body (140) is limited.

[0073] A cap (144) is inserted into the hollow (138) to support the elastic member (146). During the assembly process of the connection pin (130), after the contact terminal (131) and the elastic member (146) are inserted sequentially into the hollow (138) of the connection terminal (136), the cap (144) is inserted into the hollow (138). The cap (144) supports the elastic member (146) and covers the hollow (138).

[0074] The specific configuration of the connection terminal (136) is not limited to that illustrated. Additionally, the method of combining the connection terminal (136) and the dielectric (120) can be varied.

[0075] The elastic member (146) is placed in the hollow (138) to apply elastic force in a direction protruding from the connection terminal (136) to the contact terminal (131).

[0076] The elastic member (146) may be formed in the shape of a coil spring, with one end in contact with the cap (144) and the other end in contact with the head (133) of the contact terminal (131). The elastic member (146) is compressed when the contact terminal (131) contacts the object to be connected (O), and the contact terminal (131) may further enter into the hollow (138).

[0077] The elastic member (146) can be configured in various other forms capable of applying elastic force to the contact terminal (131) in addition to the coil spring form. For example, the elastic member (146) can be formed in the form of a leaf spring or a rubber block.

[0078] The connection pin (130) is easy to assemble and easy to manufacture with the contact terminal (131), the connection terminal (136), and the elastic member (146). That is, the connection pin (130) can be completed through a simple assembly process in which the contact terminal (131) and the elastic member (146) are sequentially inserted into the hollow (138) of the connection terminal (136) and fixed with a cap (144).

[0079] Additionally, the connecting pin (130) can be simply combined with the dielectric (120) by being inserted into the dielectric hole (121), and the bonding strength with the dielectric (120) is excellent.

[0080] As described above, the connector (100) according to one embodiment of the present invention is easy to assemble and has excellent bonding strength with the object to be installed. Since the connection pin (130) that transmits an electrical signal is connected in a manner that directly contacts the object to be connected (O), problems such as insertion loss, weight increase, and process increase caused by the use of an adapter or cable can be resolved.

[0081] FIG. 6 is a plan view showing a radio frequency filter to which a connector according to an embodiment of the present invention is applied. FIG. 7 is a cross-sectional view of the radio frequency filter shown in FIG. 6. FIG. 8 is a perspective view showing a part of the radio frequency filter shown in FIG. 6. FIG. 9 is a cross-sectional view showing the radio frequency filter shown in FIG. 6 connected to a connection target.

[0082] As shown in the drawing, a radio frequency filter (200) according to one embodiment of the present invention comprises a housing (210) having a receiving space (212), a cover (230) coupled to the housing (210) to cover the receiving space (212), a plurality of resonant elements (250) disposed in the receiving space (212), and a pair of connectors (100) coupled to the housing (210) so as to be connected to a connection target (O).

[0083] The housing (210) includes a housing body (211) coupled with a cover (230), a receiving space (212) disposed in the housing body (211) to accommodate a plurality of resonant elements (250), and a pair of first installation holes (221) disposed in the housing body (211) to insert a connector (100).

[0084] The receiving space (212) is opened to the outside through one end of the housing body (211), and the first installation hole (221) is opened to the outside through the other end of the housing body (211). Based on the drawing, one end of the housing body (211) represents the upper end of the housing body (211), and the other end of the housing body (211) represents the lower end of the housing body (211). The housing body (211) is made of a metal such as aluminum or a plateable plastic, and may be plated with silver or copper as needed to improve electromagnetic properties.

[0085] The housing body (211) includes a base (214), an outer wall (215) protruding vertically from the edge of the base (214), and a plurality of partitions (217) disposed inside the outer wall (215).

[0086] A plurality of partitions (217) divide the receiving space (212) into a plurality of cavities (213), and one resonant element (250) can be received in each cavity (213). A connecting window (219) connecting the plurality of cavities (213) is disposed in the partitions (217).

[0087] A fastening groove (220) is provided in the outer wall (215) and the partition wall (217). A fixing member (280) for joining the housing (210) and the cover (230) is inserted into the fastening groove (220).

[0088] A first installation hole (221) is positioned in the housing body (211) to be connected to a receiving space (212) for the installation of a connector (100). A mounting floor (222) is positioned between the first installation hole (221) and the receiving space (212). A second installation hole (223) is positioned in the mounting floor (222) to connect the receiving space (212) and the first installation hole (221). The connector (100) is coupled to the housing (210) by inserting the connector (100) into the first installation hole (221) and the second installation hole (223).

[0089] The cover (230) is configured to cover the receiving space (212) by contacting one end of the housing (210). The cover (230) includes a cover body (231) and a slot (235) penetrating the cover body (231) in the thickness direction, and is firmly bonded to the housing (210) by solder (240). The cover body (231) is made of a metal such as aluminum or a plateable plastic, and may be plated with silver or copper as needed to improve electromagnetic properties.

[0090] The cover body (231) is configured to be in direct contact with the outer wall (215) and the partition wall (217) of the housing (210), and can be firmly bonded to the partition wall (217) by solder (240) placed in the slot (235). The cover body (231) has a plurality of insertion holes (236) and a plurality of through holes (237) that penetrate the cover body (231) in the thickness direction. A tuning screw (260) capable of finely adjusting the resonance frequency of the resonance element (250) is inserted into the insertion hole (236). A fixing member (280) is inserted into the through hole (237). The cover (230) can be firmly fixed to the housing (210) by the fixing member (280) passing through the through hole (237) and being inserted into the fastening groove (220) of the housing (210).

[0091] The solder (240) is received only inside the slot (235) of the cover body (231) and is not interposed between the housing body (211) and the cover body (231). Therefore, the housing (210) and the cover (230) can be joined by direct surface contact.

[0092] The solder (240) can form an effective sealing layer by being placed to surround the receiving space (212). Thus, the receiving space (212) can be protected from the external environment and leakage of electrical signals can be prevented.

[0093] The solder (240) can be applied to the slot (235) in the form of a paste, powder, or other forms, and then heated to melt. The molten solder (240) flows into the slot (235) to fill the entire slot (235) and can firmly bond the housing (210) and the cover (230) upon cooling. During this bonding process, the molten state of the solder (240) can be checked through the slot (235).

[0094] A plurality of resonant elements (250) are individually disposed within each cavity (213) of the housing (210) and are electrically connected to the connector (100) through a conductive member (C). A recess (251) is disposed at the end of the resonant element (250), and the recess (251) can partially accommodate a tuning screw (260) inserted through the cover (230).

[0095] The resonance characteristics of the radio frequency filter (200) are primarily determined by the physical structure of the resonance element (250), namely its length and outer diameter. These basic resonance characteristics can be adjusted more precisely through a tuning screw (260) inserted into the recess (251) of the resonance element (250).

[0096] A plurality of tuning screws (260) installed on the cover (230) can be utilized in two ways. That is, some tuning screws (260) can be directly inserted into the recess (251) of the resonant element (250) to adjust the resonant frequency of the individual resonant element (250), and other parts can be inserted into the connecting window (219) of the partition (217) to adjust the characteristics of the radio frequency filter (200).

[0097] The adjustment of resonance characteristics through the tuning screw (260) can be performed by loosening or tightening the tuning screw (260). After adjusting the resonance characteristics through the tuning screw (260), the tuning screw (260) is secured by a fixing nut (270).

[0098] A low-pass filter (290) is disposed together with a resonant element (250) in the receiving space (212) of the housing (210). The low-pass filter (290) performs the function of blocking electrical signals above a specific frequency and is electrically connected to the resonant element (250) and the connector (100) through a conductive member (C). The low-pass filter (290) can improve filtering passband characteristics through interaction with the resonant element (250).

[0099] Two connectors (100) may be placed in the housing (210). One of the two connectors (100) may be used for input and the other for output. The input connector (100) and the output connector (100) may have the same structure. The connector (100) is connected to a connection target (O), such as a printed circuit board.

[0100] When a radio frequency signal is input through the input connector (100), electromagnetic energy is generated. The generated electromagnetic energy is filtered by a plurality of resonant elements (250). Specifically, the resonant elements (250) selectively allow only the signal corresponding to the resonant frequency among the input radio frequency signals to pass through. The passed signal is output to the outside through the output connector (100).

[0101] The connector (100) can be coupled to the housing (210) in a double press-fit structure. Specifically, the shell (110) is inserted into the first installation hole (221) of the housing (210) and press-fitted to the housing body (211), and the dielectric (120) is press-fitted to the mounting floor (222) by inserting the second dielectric body (123) into the second installation hole (223). Thus, the coupling force between the connector (100) and the housing (210) can be increased.

[0102] The connector (100) includes a shell (110) that is press-fitted into the housing (210) and has an uneven surface (115) that contacts the inner surface of the housing (210), so the coupling force with the housing (210) can be increased.

[0103] In addition, since the shell (110) including the uneven portion (115) surrounds the dielectric (120), it has the effect of preventing signal leakage.

[0104] Conventional radio frequency filters had problems such as increased insertion loss, increased weight, and increased processing because the input / output connectors had to use adapters or cables to connect with the object to be connected.

[0105] In contrast, the radio frequency filter (200) according to one embodiment of the present invention is connected to the object to be connected (O) in such a way that the connection pin (130) of the connector (100) directly contacts the object to be connected (O), thereby solving the problems of the prior art.

[0106] The structural features of these connectors (100) contribute not only to improved electrical performance but also to the simplification of the assembly process and miniaturization of the product, and consequently, can improve the overall performance and reliability of the radio frequency filter (200).

[0107] Additionally, the connector (100) can be firmly coupled to the housing (210) through a double press-fit structure. That is, the shell (110) of the connector (100) is press-fit coupled to the housing body (211) by being inserted into the first installation hole (221) of the housing (210), and the dielectric (120) is press-fit coupled to the mounting floor (222) by being inserted into the second installation hole (223) of the second dielectric body (123). The first press-fit coupling between the shell (110) and the housing body (211) provides the basic fixing force of the connector (100). In particular, a stable coupling force can be secured by the uneven surface (115) of the shell (110) firmly contacting the inner surface of the housing (210). Additionally, the second press-fit coupling between the dielectric (120) and the mounting floor (222) provides additional fixing force.

[0108] In contrast to conventional connectors where only the outermost component (shell, housing, etc.) is placed in contact with the object to be installed, the connector (100) according to one embodiment of the present invention is coupled to the housing (210) using a double press-fit coupling method, so the coupling force between the connector (100) and the housing (210) can be significantly increased. This improves the durability of the connector (100) against external shocks or vibrations and enables stable electrical connection to be maintained even during long-term use.

[0109] Although the embodiments of this specification have been described in more detail with reference to the attached drawings, this specification is not necessarily limited to these embodiments and may be modified in various ways within the scope of the technical spirit of this specification. Accordingly, the embodiments disclosed in this specification are intended to explain, not to limit, the technical spirit of this specification, and the scope of the technical spirit of this specification is not limited by these embodiments. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. Explanation of the symbols

[0110] 100 : Connector 110 : Shell 111 : Shell hole 112: 1st Hall 113: 2nd Hall 114 : Shell body 115 : Uneven part 116 : Protrusion 117 : Internal detent 118 : Inner Rim 119 : Shell Ledge 120 : Genome 121: Genome Hole 122 : 1st Genome Body 123 : Second Genome Body 124 : Genome Ledge 130: Connection pin 131 : Contact terminal 132 : Contact protrusion 133 : Head 134 : Contact terminal ledge 136 : Connection terminal 137 : Hollow body 138 : Communist China 139 : 1st body 140 : 2nd body 141 : External detent 142 : External Ledge 143 : Internal Ledge 144 : Cap 146 : Elastic member 200 : Radio frequency filter 210 : Housing 211 : Housing body 212 : Accommodation space 213 : Cavity 214 : Bass 215 : Outer wall 217 : Bulkhead 219 : Connection Window 220 : Fastening groove 221: 1st installation hole 222 : Mounting Floor 223: Second installation hole 230 : Cover 231 : Cover body 235 : Slot 236 : Insertion hole 237 : Through hole 240 : Solder 250 : Resonant element 251 : Recess 260 : Tuning Screw 270 : Fixing nut 280 : Fixed member 290 : Low-pass filter C: Absence of challenge O : Object to be connected

Claims

Claim 1 A connector comprising: a connection pin for transmitting an electrical signal; a dielectric including a dielectric hole into which the connection pin is inserted; and a shell including a shell body inserted into a first installation hole of an object to be installed and a shell including a shell hole into which the dielectric is inserted, wherein the connection pin comprises: a connection terminal having a hollow disposed therein; a contact terminal movably inserted into the hollow so as to protrude from the dielectric; and an elastic member disposed in the hollow to apply an elastic force to the contact terminal in a direction protruding from the dielectric, wherein the shell further comprises an inner rim disposed at the end of the shell body, and the dielectric comprises: a first dielectric body press-fitted into the shell body; and a second dielectric body extending from the first dielectric body to be press-fitted into the inner rim, the second dielectric body having a smaller diameter than the first dielectric body and extending from the first dielectric body so as to protrude from the shell. Claim 2 A connector according to claim 1, wherein the shell further comprises an uneven surface disposed on the outer circumference of the shell body to contact the inner surface of the object to be installed. Claim 3 A connector according to claim 1, wherein the shell further comprises an internal detent protruding from the inner surface of the shell body to contact the outer surface of the dielectric. Claim 4 In claim 1, the second dielectric body is a connector inserted into the second installation hole of the installation target connected to the first installation hole. Claim 5 delete Claim 6 A connector according to claim 1, wherein the shell further comprises a shell ledge disposed on the inner rim so as to protrude from the inner surface of the shell body, and the dielectric further comprises a dielectric ledge disposed on the first dielectric body so as to contact the shell ledge. Claim 7 A connector according to claim 1, wherein the connection terminal comprises an external detent protruding from the outer surface of the connection terminal to contact the inner surface of the dielectric. Claim 8 In claim 1, the connector comprises a hollow body in which the hollow is disposed; and a cap inserted into the hollow to support one end of the elastic member. Claim 9 In claim 8, the hollow body comprises: a first body inserted into the dielectric hole; and a second body connected to the end of the first body so as not to pass through the dielectric hole, the second body having a larger diameter than the first body and contacting the end of the dielectric. Claim 10 In claim 9, the hollow body further comprises an inner ledge disposed in the second body so as to protrude from the inner circumferential surface of the first body; and an outer ledge disposed in the second body so as to protrude from the outer circumferential surface of the first body, and the contact terminal comprises a contact projection protruding from the second body to contact a connected object; a head disposed inside the first body to contact the elastic member, having a diameter larger than that of the contact projection; and a contact terminal ledge disposed in the head to contact the inner ledge. Claim 11 A connection pin for transmitting an electrical signal; a dielectric including a dielectric hole into which the connection pin is inserted; and a shell including a shell body inserted into a first installation hole of an object to be installed and a shell including a shell hole into which the dielectric is inserted, wherein the connection pin comprises: a connection terminal having a hollow disposed therein; and a contact terminal movably inserted into the hollow so as to protrude from the dielectric. A connector comprising: an elastic member disposed in the hollow to apply an elastic force in a direction protruding from the dielectric to the contact terminal; the shell further comprises a shell ledge protruding from the inner surface of the shell body; the dielectric further comprises a dielectric ledge disposed to contact the shell ledge; the connection terminal further comprises an outer ledge disposed outside the dielectric to contact the outer surface of the dielectric; the dielectric ledge is configured to be pressed toward the shell ledge by a reaction force applied by the connection target to the contact terminal when the contact terminal contacts the connection target; and the outer ledge is configured to be pressed toward the outer surface of the dielectric by a reaction force applied by the connection target to the contact terminal when the contact terminal contacts the connection target. Claim 12 delete Claim 13 A radio frequency filter comprising: a housing including a receiving space and a first installation hole connected to the receiving space; a resonant element disposed in the receiving space; and a connector coupled to the housing to be electrically connected to the resonant element, wherein the connector comprises: a connecting pin comprising a connecting terminal electrically connected to the resonant element and having a hollow disposed therein, a contact terminal movably inserted into the hollow, and an elastic member disposed in the hollow to apply an elastic force to the contact terminal in a direction protruding from the connecting terminal; a dielectric comprising a dielectric hole into which the connecting pin is inserted; and a shell comprising a shell body inserted into the first installation hole, an inner rim disposed at the end of the shell body, and a shell hole into which the dielectric is inserted, wherein the dielectric comprises: a first dielectric body press-fitted into the shell body; and a second dielectric body extending from the first dielectric body to be press-fitted into the inner rim, the second dielectric body having a smaller diameter than the first dielectric body and extending from the first dielectric body to be press-fitted into the inner rim, and the second dielectric body protruding from the shell. Claim 14 In claim 13, the housing further comprises: a mounting floor disposed between the receiving space and the first installation hole; and a second installation hole disposed in the mounting floor to connect the receiving space and the first installation hole, wherein the shell is inserted into the first installation hole to contact the mounting floor, and the dielectric is press-fitted into the second installation hole.

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