Functional assembly, functional module and mounting base with NFC tag

Abstract

The application relates to a functional assembly with an NFC tag, a mounting seat thereof and a functional module with an NFC communication system. The functional assembly is used for being fixed to the mounting seat in a screwing mode, the functional assembly comprises an end plate facing the mounting seat, the end plate is provided with a central hole, the functional assembly further comprises a support elastically supported on the end plate, the support is provided with an opening hole corresponding to the central hole of the end plate, and the support can axially move and circumferentially rotate relative to the end plate; the NFC tag is arranged on the support, and the support comprises a positioning part for limiting the circumferential rotating position of the support. The application further relates to the mounting seat suitable for the functional assembly and the functional module comprising the functional assembly and the mounting seat.

Description

Technical Field

[0001] This invention relates to a functional component with an NFC tag, a functional module with an NFC communication system, and a mounting base. Background Technology

[0002] In functional modules (such as screw-mounted filters and mufflers) where functional components are screwed onto their mounting bases, the functional components (e.g., filter components, muffler components) are typically replaceable. Some functional components are equipped with NFC (Near Field Communication) tags, which record information such as the component's production date, manufacturer, and replacement time. Correspondingly, the mounting base is equipped with an NFC reader / writer to read information from the NFC tags on the functional components or write information to the NFC tags, thereby recording and updating the status of the functional components and modules.

[0003] Currently, NFC tags in functional components are typically fixedly mounted on the endplate or housing of the component, positioned so that they are roughly aligned with the NFC reader / writer on the mounting base when the component and mounting base are rotated into place. As the component and mounting base rotate, the NFC tag rotates relative to the mounting base. However, due to manufacturing errors in the screw-connecting components and variations in rotation by different users, the fixed mounting of the NFC tag makes it difficult to align with the NFC reader / writer on the mounting base, resulting in poor flexibility and consequently, poor communication reliability between the NFC reader / writer and the NFC tag. Summary of the Invention

[0004] Based on this, the present invention aims to provide a functional component with an NFC tag. The present invention also provides a functional module with an NFC communication system and a mounting base.

[0005] In one aspect, the present invention provides a functional component with an NFC tag for screwing and fixing to a mounting base. The functional component includes an end plate facing the mounting base, the end plate having a central hole, and the functional component further includes a bracket elastically supported on the end plate. The bracket has an opening corresponding to the central hole of the end plate, and the bracket is capable of axial movement and circumferential rotation relative to the end plate. The NFC tag is disposed on the bracket, and the bracket includes a positioning part for limiting the circumferential rotation position of the bracket.

[0006] Furthermore, the positioning unit includes a boss mounted on the bracket, and an NFC tag is mounted on the boss.

[0007] Furthermore, the bracket has an upper end face facing away from the end plate, and a boss is provided on the upper end face.

[0008] Furthermore, the bracket includes a disc-shaped portion disposed between the end plate and the mounting base and spaced apart from the end plate. An opening of the bracket is disposed in the disc-shaped portion. The disc-shaped portion also includes at least one first flow hole that allows fluid to flow, and the first flow hole is spaced apart from the central hole.

[0009] Furthermore, the end plate includes at least one second flow hole disposed around the central hole, one of the central hole and the second flow hole being used to allow fluid to flow into the functional component and the other being used to allow fluid to flow out of the functional component; the mounting base includes a central flow channel, the flow channel wall of the central flow channel being able to connect to the central hole of the end cap through an opening in the bracket; at least one second flow hole is in fluid communication with the mounting base through the peripheral space of the flow channel wall of the central flow channel.

[0010] Furthermore, the end plate has a sealing area surrounding the central hole, the second flow hole, and the bracket, the sealing area being used to accommodate a sealing gasket clamped between the end plate and the mounting base.

[0011] Furthermore, the sealing area includes a sealing groove for accommodating a sealing gasket.

[0012] Furthermore, the support also includes a first sleeve portion and a first connecting structure, wherein the first sleeve portion extends from the outer periphery of the disc-shaped portion toward the end plate; the end plate has a second connecting structure corresponding to the first connecting structure, and the first connecting structure and the second connecting structure cooperate with each other to enable the support to move axially and rotate circumferentially relative to the end plate.

[0013] Furthermore, the first sleeve portion is arranged around the central hole and the second flow hole of the end plate, and the first sleeve portion also has a hollow structure.

[0014] Furthermore, the first connecting structure includes a first folded edge, which folds outward from the end of the first sleeve portion away from the disc-shaped portion; the end plate is provided with an axial limiting mechanism for limiting the axial movement position of the first folded edge.

[0015] Furthermore, a spring is provided between the end plate and the disc-shaped part.

[0016] Furthermore, the axial limiting mechanism includes a second sleeve portion and a second folded edge; the second sleeve portion extends axially outward from the upper end face of the end plate, and the second folded edge folds inward from the end of the second sleeve portion away from the end plate; wherein, the first sleeve portion and the second folded edge are slidably engaged, and the axial movement position of the first folded edge is defined by the end plate and the second folded edge respectively.

[0017] Furthermore, functional components with NFC tags include oil filter components, diesel filter components, liquefied petroleum gas filter components, compressed natural gas filter components, water filter components, air filter components, air drying components, or noise reduction components.

[0018] Furthermore, the functional component is a rotary fixed oil filter assembly or a rotary fixed fuel filter assembly.

[0019] In another aspect, the present invention provides a functional module with an NFC communication system, including the aforementioned functional component with an NFC tag, and a mounting base for screwing onto the functional component; the NFC communication system includes an NFC reader / writer and an NFC tag, the NFC reader / writer being attached to the mounting base, wherein the mounting base includes a receiving cavity for accommodating a bracket, the receiving cavity being provided with an overlapping portion located on the circumferential rotation trajectory of a positioning portion, the overlapping portion being adapted to engage with the positioning portion to limit the circumferential rotation position of the bracket, thereby aligning the NFC reader / writer with the NFC tag.

[0020] Furthermore, the positioning part includes a boss provided on the bracket, and the cavity wall of the receiving cavity is provided with a stepped surface suitable for pressing against the boss; the overlapping part is a notch opened in the stepped surface, and the notch is suitable for receiving the boss.

[0021] Furthermore, the communication unit of the NFC reader is located at the position corresponding to the notch, and the NFC tag is located on the protrusion.

[0022] Furthermore, the stepped surface is a spiral guide surface.

[0023] Furthermore, the spiral guide surface includes a first spiral guide surface and a second spiral guide surface arranged opposite to each other. The first ends of the first spiral guide surface and the second spiral guide surface are respectively introduced into notches, and the second ends of the first spiral guide surface and the second spiral guide surface are connected at a position radially opposite to the notches.

[0024] Furthermore, the functional modules with NFC communication systems include oil filters, diesel filters, liquefied petroleum gas filters, compressed natural gas filters, water filters, air filters, air dryers, and mufflers.

[0025] Furthermore, the functional module with an NFC communication system is a rotary fixed oil filter or a rotary fixed fuel filter.

[0026] In another aspect, the present invention provides a mounting base for connecting to the aforementioned functional component with an NFC tag. The mounting base is attached with an NFC reader / writer for communicating with the NFC tag. The mounting base includes a receiving cavity for accommodating a support. The receiving cavity has an overlapping portion located on the circumferential rotation trajectory of a positioning portion. The overlapping portion is adapted to engage with the positioning portion to limit the circumferential rotation position of the support, thereby aligning the NFC reader / writer with the NFC tag.

[0027] Furthermore, the cavity wall of the receiving cavity is provided with a stepped surface suitable for pressing against the positioning part; the overlapping part is a notch opened on the stepped surface, and the notch is suitable for receiving the positioning part.

[0028] Furthermore, the stepped surface is a spiral guide surface.

[0029] Furthermore, the spiral guide surface includes a first spiral guide surface and a second spiral guide surface arranged opposite to each other. The first ends of the first spiral guide surface and the second spiral guide surface are respectively introduced into notches, and the second ends of the first spiral guide surface and the second spiral guide surface are connected at a position radially opposite to the notches.

[0030] The NFC-tagged functional component according to the present invention includes a bracket elastically supported on an end plate and capable of axial movement and circumferential rotation relative to the end plate. The bracket includes a positioning part adapted to engage with an overlapping part on a mounting base to limit the circumferential rotation position of the bracket. The NFC tag is fixedly positioned on the bracket relative to the positioning part. During the rotation of the NFC-tagged functional component screwed onto the mounting base, the bracket can be subjected to the force of the mounting base, thereby overcoming the elastic force and moving axially toward the end plate. Simultaneously, the bracket can also rotate with the NFC-tagged functional component under the action of friction. When the positioning part rotates to the overlapping part and engages with it, the bracket moves axially toward the mounting base under the action of the elastic force. The positioning part and the overlapping part overlap each other, limiting the bracket from further circumferential rotation. At this time, the NFC reader and the NFC tag are aligned. Therefore, even if the NFC-tagged functional component continues to rotate relative to the mounting base, the alignment of the NFC tag and the NFC reader can be maintained because the rotation of the bracket is limited, avoiding communication interference caused by misalignment (e.g., the mounting base made of metal material can interfere with NFC communication), thereby effectively improving the communication reliability between the two. Attached Figure Description

[0031] Figure 1 A schematic cross-sectional view of a functional module according to a first embodiment of the present invention is shown;

[0032] Figure 2 A partial cross-sectional view of a functional component according to a first embodiment of the present invention is shown schematically;

[0033] Figure 3 A perspective view schematically illustrating functional components according to a first embodiment of the present invention is shown.

[0034] Figure 4 A schematic top view of functional components according to a first embodiment of the present invention is shown;

[0035] Figure 5 A perspective view of the mounting base according to a first embodiment of the present invention is shown schematically;

[0036] Figure 6 A bottom view of the mounting base according to a first embodiment of the present invention is shown schematically;

[0037] Figure 7 schematically showing along Figure 6 A cross-sectional view along line AA. Detailed Implementation

[0038] The functional modules disclosed in this invention include functional components and mounting bases that are fixed by screwing. Examples of functional modules include filters, compressed air dryers, and silencers that perform functional treatment on fluids flowing within them. In the following embodiments, for ease of explanation and understanding, a filter is used as an example to describe the functional module; however, it should be understood that the invention is not limited thereto and should be understood to cover any functional component fixed by screwing, the mounting base that interfaces with the functional component, and functional modules including both.

[0039] In this embodiment, the functional module with an NFC communication system is, for example, a filter with an NFC communication system, and correspondingly, the functional component with an NFC tag is a spiral-fixed filter component with an NFC tag.

[0040] Figure 1 A cross-sectional view of a filter according to a first embodiment of the present invention is shown. As shown, the filter includes, for example, a spiral-fixed filter assembly 1 and a mounting base 2, which is also commonly referred to as an aluminum base or filter head. The spiral-fixed filter assembly 1 is spirally connected to the mounting base 2.

[0041] refer to Figure 1 The spiral fixed filter assembly 1 includes an end plate 10, a cylindrical housing 100, a filter medium 150, and a hollow support structure 160 for supporting the filter medium 150. The end plate 10 is located at the upper opening of the cylindrical housing 100, facing the end plate 10. The end plate 10 has a central hole 18 and a second flow hole 15. The wall of the central hole 18 has a threaded structure for screwing into a mounting base 2. The cylindrical housing 100 can refer to the housing structure of the prior art. The end plate 10 and the housing 100 define a filter chamber adapted to contain the filter medium 150. The filter medium 150 is annular, and the hollow support structure 160 supports it in the middle. The hollow support structure 160 can adopt any suitable structure to support and position the filter medium 150. A plurality of radial through holes 165 are provided on the axial wall of the hollow support structure 160, and the hollow portion of the hollow support structure 160 communicates with the central hole 18 of the end plate 10.

[0042] Mounting base 2 includes inflow channel 23 (see...) Figure 5The spiral fixed filter assembly 1 is connected to the mounting base 2. The inflow channel 23 is in fluid communication with the fluid inlet (e.g., the second flow hole 15) of the spiral fixed filter assembly 1, and the outflow channel 25 is in fluid communication with the center hole of the end plate 10, and further communicates with the hollow portion of the hollow support structure 160. The fluid to be filtered enters the filter chamber through the inflow channel 23 via the second flow hole 15, and is then filtered by the filter medium 150. The filtered fluid enters the hollow portion of the hollow support structure 160 through multiple through holes 165, and is then discharged from the outflow channel 25 through the center hole 18. It should be understood that the fluid can also enter the filter chamber from the outflow channel 25 via the center hole 18 in the reverse direction, be filtered by the filter medium 150, flow out from the second flow hole 15, and be discharged through the inflow channel 23.

[0043] Mounting base 2 is attached to an NFC reader / writer 42 capable of communicating with the NFC tag 41. The NFC reader / writer 42 can be detachably attached to the mounting base 2, for example, by snap-fit ​​connection, screw connection, or magnetic adsorption. The NFC reader / writer 42 can also be fixedly connected to the mounting base 2, for example, by soldering. The communication unit 421 of the NFC reader / writer 42 extends into the mounting base 2 for communicating with the NFC tag 41 on the screw-fixed filter assembly 1.

[0044] Please refer to the above. Figures 2 to 4 A bracket 11 is elastically supported on the end plate 10 of the spiral-fixed filter assembly 1. The bracket 11 has an opening 1120 corresponding to the central hole 18 of the end plate for the passage of filtered fluid. Preferably, the bracket 11 is annular, and the opening 1120 of the bracket 11 is coaxially arranged with the central hole 18 of the end plate 10 to allow fluid to flow into / out of the filter assembly 1. Under the action of elastic force, the bracket 11 can move axially relative to the end plate 10. The bracket 11 can also rotate circumferentially relative to the end plate 10; embodiments allowing circumferential rotation of the bracket 11 relative to the end plate will be further described below. The bracket 11 is adapted to hold an NFC tag 41 and includes a positioning portion for limiting the circumferential rotation position of the bracket 11. When the positioning portion is locked in place, the circumferential rotation of the bracket 11 is restricted.

[0045] The NFC tag 41 and the NFC reader 42 can communicate with each other. The NFC tag 41 and the NFC reader 42 can employ any suitable known technology. For example, the NFC tag includes an antenna coil, and the NFC reader includes a printed circuit board assembly capable of transmitting and receiving NFC signals and reading / writing information from the NFC tag.

[0046] refer to Figure 2In a preferred embodiment, the positioning portion includes a boss 111 that protrudes axially outward relative to the upper end face of the bracket 11. In some embodiments, the boss 111 may be disposed on the upper end face of the back end plate 10 of the bracket 11. Alternatively, in other embodiments, the boss 111 may be disposed on the circumferential side of the bracket 11, as long as it protrudes axially outward from the upper end face of the bracket 11. In some embodiments, an NFC tag may be disposed on the boss 111. The boss 111 may be a hollow structure or a solid structure, as long as it protrudes axially outward from the upper end face of the bracket 11. Furthermore, in other embodiments, the positioning portion is not limited to the boss 111, but may also be a recess that mates with the overlapping portion on the mounting base 3, as described in detail in the second embodiment.

[0047] Preferably, such as Figure 2 As shown, the NFC tag 41 is disposed in the hollow portion of the hollow boss 111, and is located on the inner surface of the boss 111, thereby protecting the coil of the NFC tag 41 from wear due to friction with the external environment during use, and also preventing fluid from directly impacting the NFC tag 41. Preferably, the NFC tag 41 can be attached to the boss 111 by welding or adhesive to prevent the NFC tag 41 from falling off during use. Of course, the way the NFC tag 41 is disposed is not limited to this; it can also be disposed on the axial outer end face of the boss 111, etc.

[0048] Further reference Figures 5 to 7 An embodiment of a filter mounting base 2 is shown. The mounting base 2 is used for connection to a spiral-fixed filter assembly 1. The mounting base 2 includes a receiving cavity 22 for accommodating a support 11 of the spiral-fixed filter assembly 1. In this embodiment, the receiving cavity 22 is generally cylindrical; it should be understood that the receiving cavity 22 can also be, for example, hemispherical or other suitable shapes. In this embodiment, an outflow channel 25 is axially formed coaxially with the receiving cavity 22 at its center. The channel wall of the outflow channel 25 extends out of the mounting base 2, is adapted to pass through an opening 1120 in the support 11, is fluidly connected to a central hole 18 in the end cap 10, and extends into a hollow support structure 160. The outer wall surface of the outflow channel 25 has threads that engage with the threads of the central hole 18 in the end plate 10 for spiral connection with the spiral-fixed filter assembly 1. An inflow channel 23 communicates with the receiving cavity 22. The cavity wall of the receiving cavity 22 is provided with a stepped surface 21 suitable for pressing against the boss 111 on the support 11 of the spiral fixed filter assembly 1. Figure 5In the illustrated embodiment, the stepped surface 21 is annularly protruding circumferentially from the bottom wall of the receiving cavity. In other embodiments, the stepped surface 21 may also protrude from the side wall of the receiving cavity. The stepped surface 21 is provided with an overlapping portion for limiting the circumferential rotation of the positioning part. When the positioning part and the overlapping portion are engaged, the overlapping portion can limit the circumferential rotation of the positioning part, and the communication part of the NFC reader / writer 42 is aligned with the NFC tag 41.

[0049] like Figure 5 As shown, in a preferred embodiment, the overlapping portion is a notch 211 formed in the stepped surface 21, which is adapted to accommodate the boss 111 on the bracket 11. When the positioning portion and the overlapping portion are engaged, that is, when the boss 111 and the notch 211 are opposite each other, the boss 111 elastically extends into the notch 211 and is thus accommodated in the notch 211. Since the sidewall at the notch restricts the circumferential rotation of the boss 111, the rotation of the boss 111 and the bracket 11 is restricted without affecting the continued screwing of the end plate 10 to the mounting base 2. The NFC tag 41 is fixed relative to the mounting base 2, so the alignment of the NFC tag 41 with the communication section 421 of the NFC reader / writer 42 can always be maintained. It can be understood that the size and depth of the notch 211 are adapted to the size and height of the boss 111 and can extend to part of the cavity wall of the receiving cavity 22.

[0050] like Figure 5 As shown, in some embodiments, the communication unit 421 of the NFC reader 42 is located at a position corresponding to the notch 211. The notch 211 is also provided with a through hole 26 blocked by the communication unit 421 of the NFC reader 42. When the NFC tag 41 is accommodated in the notch 211, the NFC tag communicates with the NFC reader 42 through the through hole 26, which can reduce the interference of the mounting base 2 on the communication between the NFC reader 42 and the NFC tag 41, and further improve the communication reliability between the two.

[0051] According to the filter of the above embodiment, when the spiral-fixed filter assembly 1 and the mounting base 2 are assembled together by screwing, the spiral-fixed filter assembly 1 rotates and tightens relative to the mounting base 2. The stepped surface 21 of the mounting base 2 presses against the boss 111 of the contact bracket 11 and applies a force to the bracket 11 in the direction of the end plate 10, causing the bracket 11 to overcome the elastic force and move axially in the direction of the end plate 10. At the same time, as the spiral-fixed filter assembly 1 rotates, the bracket 11 carrying the boss 111 also rotates under the action of friction. When the boss 111 rotates to the position of the notch 211, the boss 111 extends into the notch 211 and engages with the notch 211, and the circumferential rotation of the bracket 11 is restricted. Even if the end plate 10 of the spiral-fixed filter assembly 1 continues to rotate relative to the mounting base 2, the bracket 11 carrying the NFC tag 41 no longer rotates relative to the mounting base 2, that is, the position of the NFC tag 41 is fixed relative to the mounting base 2. Therefore, by aligning the NFC reader 42 and the NFC tag 41 when the positioning part and the overlapping part are in place, the alignment of the NFC tag 41 and the NFC reader 42 can be maintained at all times. This also helps to shorten the communication distance between the two and reduce the interference of the metal environment on NFC communication, effectively improving the communication reliability between the two.

[0052] Further reference Figures 2 to 4 Describes a spiral-fixed filter assembly 1 according to this embodiment. A support 11 includes a disc-shaped portion 112 spaced apart from the end plate 10 and the mounting base 2, with an opening 1120 provided in the disc-shaped portion 112. A gap for fluid flow exists between the opening 1120 of the disc-shaped portion 112 and the flow channel wall of the outflow channel 25, providing a space around the flow channel wall that allows fluid communication between the second flow hole 15 and the chamber (receiving cavity 22) of the mounting base 2, and the inflow channel 23 on the mounting base 2. In some embodiments, the disc-shaped portion 112 further includes at least one first flow hole 115 allowing fluid flow, the first flow hole 115 being spaced apart from the central hole 18. The first flow hole 115 provides an additional flow path for fluid, enabling fluid to flow into / out of the filter assembly in a timely manner through the first flow hole 115, avoiding pressure on the support 11 from fluid stagnating near the end plate 10 when the fluid flow rate is too high, and further avoiding the restriction of axial movement and / or circumferential rotation of the support 11 by this pressure. Figure 3 and Figure 4 In the illustrated embodiment, the disc-shaped portion 112 of the support 11 is provided with two first flow holes 115. The two first flow holes 115 are respectively provided on both sides of the boss 111, symmetrically arranged about the boss 111 and evenly spaced along the disc-shaped portion 112. In this way, the pressure of the fluid on the support 11 can be uniformly reduced. It should be understood that in other embodiments, there may be one or more than two first flow holes 115.

[0053] like Figure 3 As shown, the end plate 10 includes a plurality of second flow holes 15 disposed around a central hole 18. In some embodiments, the central hole 18 is used to allow fluid to flow out of the filter assembly 1, and the second flow holes 15 are used to allow fluid to flow into the filter assembly 1. In other embodiments, the functions of the central hole 18 and the second flow holes 15 can be interchanged.

[0054] refer to Figure 2 The bracket 11 may further include a first sleeve portion 113 and a first connecting structure. The end plate 10 has a second connecting structure corresponding to the first connecting structure. The first connecting structure and the second connecting structure cooperate with each other to enable the bracket 11 to move axially and rotate circumferentially relative to the end plate 10. In some embodiments, the first sleeve portion 113 extends from the outer periphery of the disc-shaped portion 112 toward the end plate 10. The first connecting structure includes a first folded edge 114, which folds outward from the end of the first sleeve portion 113 away from the disc-shaped portion 112. A boss 111 is provided on the disc-shaped portion 112. The bracket 11 is elastically supported on the end plate 10. In some embodiments, the end plate 10 is further provided with an axial limiting mechanism for limiting the axial movement range of the first folded edge 114 of the bracket 11, thereby limiting the axial movement range of the bracket 11.

[0055] refer to Figure 2 and Figure 3 In some embodiments, the first sleeve portion 113 is disposed around the central hole 18 and the second flow hole 15 of the end plate 10. In embodiments not shown, the first sleeve portion 113 may also have a hollow structure to further allow fluid flow and reduce the pressure of the fluid on the support.

[0056] In some embodiments, the axial limiting mechanism includes a second sleeve portion 123 and a second folded edge 124 disposed on the outer end face of the end plate 10. The second sleeve portion 123 extends axially outward from the outer end face of the end plate 10, and the second folded edge 124 folds inward from the end of the second sleeve portion 123 away from the end plate 10. The first sleeve portion 113 of the bracket 11 is slidably engaged with the second folded edge 124, and the axial movement position of the first folded edge 114 is defined by the end plate 10 and the second folded edge 124 respectively. The first folded edge 114 can be slidably engaged with the second sleeve portion 123 to further ensure the stability of the axial movement. The axial limiting mechanism in this embodiment has a simple structure and is easy to manufacture, and can easily limit the axial movement position of the first folded edge 114, thereby limiting the axial movement range of the bracket 11. Of course, in other embodiments, the axial limiting mechanism can also have other implementation methods. For example, the axial limiting mechanism can limit only a few separate points in the circumferential direction of the first folded edge 114.

[0057] In some embodiments, the end plate 10 has a sealing region surrounding the central hole 18, the second flow hole 15, and the bracket 11. This sealing region is used to accommodate a sealing gasket 141 clamped between the end plate 10 and the mounting base 2. Exemplarily, the sealing region includes a sealing groove 14 located radially outward of the second sleeve portion 123. This sealing groove 14 accommodates the sealing gasket 141, which provides a seal between the spiral-fixed filter assembly 1 and the mounting base 2, preventing fluid leakage during flow between the mounting base 2 and the spiral-fixed filter assembly 1.

[0058] Continue to refer to Figures 1 to 3 In some embodiments, an annular retaining ring 12 is fixed to the sealing area. The retaining ring 12 can be fixed to the outer end face of the end plate 10 by welding or adhesive. The inner edge of the retaining ring 12 is separate from the end plate 10 and can cooperate with the end plate 10 to restrict the axial movement of the first folded edge 114 of the bracket 11. A sealing groove 14 is provided in the middle of the retaining ring 12, and the sealing groove 14 is located radially outside the second sleeve portion 123. The outer edge of the retaining ring 12 is used to fix the cylindrical housing 100 of the spiral fixed filter assembly 1. The outer edge of the retaining ring 12 can be snapped or welded to the cylindrical housing 100 to provide a fixing effect on the cylindrical housing 100. In this embodiment, the retaining ring 12 is integrally formed with the axial limiting mechanism, which is simpler in design and easier to manufacture.

[0059] In some embodiments, a spring 13 is provided between the end plate 10 and the disc-shaped portion 112 of the bracket 11. A first end of the spring 13 contacts the outer end face of the end plate 10, and the other end of the spring 13 contacts the inner surface of the disc-shaped portion 112 of the bracket 11 facing the end plate. When a force is applied to the protrusion 111 of the bracket 11 in the direction toward the end plate 10, the spring 13 is compressed. When the force applied to the protrusion 111 of the bracket 11 in the direction toward the end plate 10 is removed, the spring 13 is released, driving the bracket 11 to move axially away from the end plate. For example, during the process of the protrusion 111 being pressed against the stepped surface 21 until it is received in the notch 211, the spring 13 is released, causing the protrusion 111 to spring up and be received in the notch 211. In this embodiment, the spring 13 provides elastic support for the bracket 11, enabling the bracket 11 to move axially under the force of the spring 13. In other embodiments, elastic support for the bracket 11 can also be provided by other elastic elements. The manner in which elastic support is provided can be referenced from the prior art and is not limited thereto. The spring 13 is disposed between the end plate 10 and the disc-shaped portion 112, saving space. In other embodiments, the spring 13 may also be disposed, for example, between the first folded edge 114 and the end plate 10. Furthermore, the spring 13 may be one or more springs 13.

[0060] refer to Figures 5 to 7The construction of the filter mounting base 2 according to an embodiment of the present invention is further described. The mounting base 2 also includes an annular sealing surface 24 on the outer side of the receiving cavity 22. The annular sealing surface 24 is adapted to cooperate with a sealing gasket 141 provided on the end plate 10 to provide a seal between the mounting base 2 and the spiral-fixed filter assembly 1.

[0061] like Figure 5 As shown, the mounting base 2 includes an outflow channel 25 (i.e., a central channel), the channel wall of which protrudes from the mounting base 2 and is adapted to pass through the opening 1120 of the bracket 11, thereby achieving fluid connection with the central hole 18 of the end cap 10. When the filter assembly 1 is assembled in place on the mounting base 2, at least one second flow hole 15 of the end plate of the filter assembly 1 is in fluid communication with the chamber of the mounting base 2 through the peripheral space of the channel wall of the outflow channel 25.

[0062] In some embodiments, the stepped surface 21 is a spiral guide surface. That is, the stepped surface 21 is spiral-shaped. In this embodiment, during the process of assembling the spiral fixed filter assembly 1 and the mounting base 2 together by screwing, when the stepped surface 21 presses against the boss 111 of the contact bracket 11, the spiral guide surface guides the circumferential rotation of the boss 111. The axial force on the boss 111 is more easily converted into a force driving the boss 111 to rotate circumferentially under the action of the spiral guide surface, and the boss 111 will rotate more easily to the notch 211.

[0063] refer to Figure 6 and Figure 7 In some embodiments, the helical guide surface includes a first helical guide surface 210 and a second helical guide surface 212 disposed opposite to each other. The first ends of the first helical guide surface 210 and the second helical guide surface 212 respectively enter a notch 211. The second ends of the first helical guide surface 210 and the second helical guide surface 212 are connected at a position radially opposite to the notch 211 or spaced apart by a protrusion (not labeled in the figure). In this embodiment, compared to a helical guide surface with only one direction, providing two helical guide surfaces with opposite directions makes it easier for the protrusion 111 to be guided to the notch 211 during rotation. For example, regardless of the initial position of the protrusion 111 and regardless of the direction of rotation of the protrusion 111, the protrusion 111 can be guided to the notch 211 after rotating at most half a step surface 21. Furthermore, compared to a helical guide surface with only one direction, providing two helical guide surfaces with opposite directions helps to reduce the height of the step surface 21 and thus reduce the overall height of the mounting base 2. It is understood that in some embodiments, the first end of the first helical guide surface 210 and the second helical guide surface 212 is at its maximum distance from the annular sealing surface 24, and the second end of the first helical guide surface 210 and the second helical guide surface 212 is at its minimum distance from the annular sealing surface 24.

[0064] The present invention also provides a second embodiment of functional components and functional modules, the main difference from the first embodiment described above being the implementation of the positioning part and the overlapping part. Due to the different implementation of the positioning part and the overlapping part, the structure of the bracket 11 and the mounting base 2 has also been adapted to some changes.

[0065] In this embodiment, the positioning portion of the bracket 11 is, for example, a recess that is axially recessed relative to the upper end face of the bracket 11. Correspondingly, the overlapping portion located in the mounting base 2 includes a protrusion extending axially from the stepped surface in the receiving cavity 22 toward the bracket 11. The upper end face of the bracket 11 includes an annular contact surface adapted to press against the protrusion, and the recess of the bracket 11 is adapted to engage with the protrusion of the mounting base 2. During the process of the functional component being screwed relative to the mounting base and assembled with the mounting base 2, the protrusion presses against the bracket 11, causing the bracket 11 to move toward the end plate. When the bracket 11 is rotated to a position where the protrusion engages with the recess, the protrusion and the recess engage with each other, thereby the protrusion of the mounting base 2 restricts the circumferential rotation of the bracket 11. Even if the end plate 10 of the functional component continues to rotate relative to the mounting base 2, the bracket 11 carrying the NFC tag 41 no longer rotates relative to the mounting base 2, that is, the position of the NFC tag 41 is fixed relative to the mounting base 2. Therefore, by aligning the NFC reader 42 and the NFC tag 41 when the positioning part and the overlapping part are in place, the alignment of the NFC tag 41 and the NFC reader 42 can be maintained at all times. This also helps to shorten the communication distance between the two and reduce the interference of the metal environment on NFC communication, effectively improving the communication reliability between the two.

[0066] In this embodiment, the annular contact surface of the bracket 11 is a helical guide surface. The helical guide surface guides the rotation of the bracket 11 relative to the protrusion, making it easier for the recess of the bracket 11 to rotate to the position where it engages with the protrusion. Preferably, the helical guide surface includes a third helical guide surface and a fourth helical guide surface disposed opposite to each other. The first ends of the third helical guide surface and the fourth helical guide surface respectively enter the recess, and the second ends of the third helical guide surface and the fourth helical guide surface are connected or spaced apart at a position radially opposite to the recess. Similar to the first embodiment, by providing two helical guide surfaces in opposite directions, the protrusion will engage with the recess more easily.

[0067] Furthermore, the NFC tag 41 is disposed near the recess, for example, disposed within the recess. Correspondingly, the NFC reader / writer 42 is disposed at a position corresponding to the protrusion, and the communication unit 421 of the NFC reader / writer 42 is disposed on the protrusion. In this way, the alignment of the NFC reader / writer 42 and the NFC tag can be further ensured, and the reliability of communication between the two can be improved.

[0068] The filters provided in the embodiments of the present invention can be used to filter gases, liquids, solids, or fluids in one or more of the above-mentioned mixed forms. For example, the filters provided in the embodiments of the present invention are, for example, filters for engine oil in engines, transmissions, hydraulic systems, etc., filters for pre-filtration and fine filtration of diesel fuel, filters for filtering water from diesel fuel, filters for filtering liquefied petroleum gas, filters for filtering compressed natural gas, filters for filtering water, or filters for filtering air, etc.

[0069] More specifically, the filter provided in this embodiment can be an oil filter, a diesel filter, a liquefied petroleum gas filter, a compressed natural gas filter, a water filter, an air filter, or an air dryer. Correspondingly, the filter assembly is an oil filter assembly, a diesel filter assembly, a liquefied petroleum gas filter assembly, a compressed natural gas filter assembly, a water filter assembly, an air filter assembly, or an air dryer assembly.

[0070] Of course, the functional components and modules provided in the embodiments of the present invention are not limited to filters, but can also be any other device that requires rotational positioning and needs to ensure the position of the NFC tag, such as a rotation-fixed muffler module and a muffler.

[0071] Embodiments of the present invention also provide a functional component, which can refer to the spiral fixed filter component 1 described above, and will not be repeated here. The spiral fixed filter component provided in this embodiment only requires modification of the end plate of the spiral fixed filter component in the prior art, which can reduce the cost required for manufacturers to update their products.

[0072] Embodiments of the present invention also provide a mounting base, which can refer to the mounting base 2 described above, and will not be repeated here.

[0073] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A functional component with an NFC tag for screwing and fixing to a mounting base (2), the functional component comprising an end plate (10) facing the mounting base (2), the end plate (10) having a central hole (18), characterized in that, The functional component also includes a bracket (11) elastically supported on the end plate (10), the bracket (11) having an opening (1120) corresponding to the center hole (18) of the end plate (10), and the bracket (11) being able to move axially and rotate circumferentially relative to the end plate (10); an NFC tag (41) is disposed on the bracket (11), and the bracket (11) includes a positioning part for limiting the circumferential rotation position of the bracket (11).

2. The functional component according to claim 1, characterized in that, The positioning part includes a boss (111) disposed on the bracket (11), and the NFC tag (41) is disposed on the boss (111).

3. The functional component according to claim 2, characterized in that, The bracket (11) has an upper end face facing away from the end plate (10), and the boss (111) is disposed on the upper end face.

4. The functional component according to claim 1, characterized in that, The bracket (11) includes a disc-shaped portion (112) spaced between the end plate (10) and the mounting base (2) and spaced from the end plate (10). An opening of the bracket (11) is provided in the disc-shaped portion (112). The disc-shaped portion (112) also includes at least one first flow hole (115) that allows fluid to flow. The first flow hole (115) is spaced from the center hole (18).

5. The functional component according to claim 4, characterized in that, The end plate (10) includes at least one second flow hole (15) disposed around the central hole (18), one of the central hole (18) and the second flow hole (15) being used to allow fluid to flow into the functional component (1) and the other being used to allow fluid to flow out of the functional component (1). The mounting base (2) includes a central flow channel, the flow channel wall of which can pass through the opening of the bracket (11) and connect to the central hole (18) of the end plate (10); the at least one second flow hole (15) is in fluid communication with the mounting base (2) through the peripheral space of the flow channel wall of the central flow channel.

6. The functional component according to claim 5, characterized in that, The end plate (10) has a sealing area surrounding the central hole (18), the second flow hole (15) and the bracket (11), the sealing area being used to provide a sealing gasket (141) clamped between the end plate (10) and the mounting base (2).

7. The functional component according to claim 6, characterized in that, The sealing area includes a sealing groove (14) for accommodating the sealing gasket (141).

8. The functional component according to claim 6, characterized in that, The bracket (11) further includes a first sleeve portion (113) and a first connecting structure, wherein the first sleeve portion (113) extends from the outer periphery of the disc-shaped portion (112) toward the end plate (10); the end plate (10) has a second connecting structure corresponding to the first connecting structure, and the first connecting structure and the second connecting structure cooperate with each other to enable the bracket (11) to move axially and rotate circumferentially relative to the end plate (10).

9. The functional component according to claim 8, characterized in that, The first sleeve portion (113) is arranged around the central hole (18) and the second flow hole (15) of the end plate (10), and the first sleeve portion (113) also has a hollow structure.

10. The functional component according to claim 8, characterized in that, The first connecting structure includes a first fold (114), which is folded outward from the end of the first sleeve portion (113) away from the disc-shaped portion (112); The end plate (10) is provided with an axial limiting mechanism for limiting the axial movement position of the first fold (114).

11. The functional component according to claim 4, characterized in that, A spring (13) is provided between the end plate (10) and the disc-shaped part (112).

12. The functional component according to claim 10, characterized in that, The axial limiting mechanism includes a second sleeve portion (123) and a second folded edge (124); the second sleeve portion (123) extends outward along the axial direction from the upper end face of the end plate (10), and the second folded edge (124) folds inward from the end of the second sleeve portion (123) away from the end plate (10); The first sleeve portion (113) is slidably engaged with the second folded edge (124), and the axial movement position of the first folded edge (114) is defined by the end plate (10) and the second folded edge (124).

13. The functional component according to any one of claims 1 to 12, characterized in that, The functional components with NFC tags include oil filter components, diesel filter components, liquefied petroleum gas filter components, compressed natural gas filter components, water filter components, air filter components, air drying components, or noise reduction components.

14. The functional component according to claim 13, characterized in that, The functional component is a rotary fixed oil filter assembly or a rotary fixed fuel filter assembly.

15. A functional module with an NFC communication system, characterized in that, The system includes a functional component with an NFC tag as described in any one of claims 1-14, and the mounting base (2) for screwing onto the functional component; the NFC communication system includes an NFC reader (42) and the NFC tag (41), the NFC reader (42) being attached to the mounting base (2), wherein the mounting base (2) includes a receiving cavity (22) for accommodating the bracket (11), the receiving cavity (22) having an overlapping portion located on the circumferential rotation trajectory of the positioning portion, the overlapping portion being adapted to engage with the positioning portion to limit the circumferential rotation position of the bracket (11), thereby aligning the NFC reader (42) with the NFC tag (41).

16. The functional module according to claim 15, characterized in that, The positioning part includes a boss (111) provided on the bracket (11), and the cavity wall of the receiving cavity (22) is provided with a stepped surface (21) suitable for pressing and contacting the boss (111); the overlapping part is a notch (211) opened on the stepped surface (21), and the notch (211) is suitable for accommodating the boss (111).

17. The functional module according to claim 16, characterized in that, The communication unit (421) of the NFC reader (42) is located at a position corresponding to the notch (211), and the NFC tag is located on the protrusion (111).

18. The functional module according to claim 17, characterized in that, The stepped surface (21) is a spiral guide surface.

19. The functional module according to claim 18, characterized in that, The spiral guide surface includes a first spiral guide surface (210) and a second spiral guide surface (212) arranged opposite to each other. The first ends of the first spiral guide surface (210) and the second spiral guide surface (212) are respectively inserted into the notch (211). The second ends of the first spiral guide surface (210) and the second spiral guide surface (212) are connected at a position radially opposite to the notch (211).

20. The functional component according to claim 15, characterized in that, The functional modules with NFC communication system include an oil filter, a diesel filter, a liquefied petroleum gas filter, a compressed natural gas filter, a water filter, an air filter, an air dryer, and a muffler.

21. The functional component according to claim 20, characterized in that, The functional module with NFC communication system is a rotary fixed oil filter or a rotary fixed fuel filter.

22. A mounting base, characterized in that, For connection with the functional component with an NFC tag according to any one of claims 1-14, the mounting base (2) is attached with an NFC reader (42) for communicating with the NFC tag (41), wherein the mounting base (2) includes a receiving cavity (22) for accommodating the bracket (11), the receiving cavity (22) being provided with an overlapping portion located on the circumferential rotation trajectory of the positioning portion, the overlapping portion being adapted to engage with the positioning portion to limit the circumferential rotation position of the bracket (11), thereby aligning the NFC reader (42) with the NFC tag (41).

23. The mounting base according to claim 22, characterized in that, The cavity wall of the receiving cavity (22) is provided with a stepped surface (21) suitable for pressing against the positioning part; the overlapping part is a notch (211) opened on the stepped surface (21), and the notch (211) is suitable for accommodating the positioning part.

24. The mounting base according to claim 23, characterized in that, The stepped surface (21) is a spiral guide surface.

25. The mounting base according to claim 24, characterized in that, The spiral guide surface includes a first spiral guide surface (210) and a second spiral guide surface (212) arranged opposite to each other. The first ends of the first spiral guide surface (210) and the second spiral guide surface (212) are respectively inserted into the notch (211). The second ends of the first spiral guide surface (210) and the second spiral guide surface (212) are connected at a position radially opposite to the notch (211).

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