Plug-type filter

Abstract

The utility model belongs to the technical field of filters, and relates to a plug type filter, which comprises a filter body, a safety mounting seat and a first waterproof ring, the outer end face of the filter body is provided with a fuse installation groove. The fuse mounting seat is fixed in the fuse mounting groove in a threaded manner, and the fuse mounting groove is used for placing a fuse; the first waterproof ring is sleeved on the safety mounting seat; when the safety mounting seat is fixed in the safety mounting groove, the first waterproof ring is attached between the outer wall of the safety mounting seat and the groove wall of the safety mounting groove. According to the utility model, the waterproof effect and the connection fixing strength of the connection part between the fuse mounting seat and the filter plug are improved.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a plug-type filter. Background Technology

[0002] In the field of electrical connections, filter plugs are widely used in electronic equipment, industrial control systems, and communication equipment to suppress electromagnetic interference and radio frequency interference. However, when traditional filter plugs are used in humid, dusty, or outdoor environments, they are prone to electrical performance degradation or even short circuits due to moisture or contaminant intrusion.

[0003] Traditional filter plugs typically use an open design or a simple snap-fit ​​structure for the fuse mounting section, such as... Figure 1 The fuse box (100) is snap-fitted to the filter body. The lack of effective waterproofing measures makes it prone to fuse oxidation or short circuits due to moisture infiltration. Some waterproof designs use integral potting sealant, which provides good waterproofing, but requires damaging the sealant structure when replacing fuses, making maintenance inconvenient. Utility Model Content

[0004] In view of this, the present invention provides a plug-type filter to improve the waterproof effect and connection strength at the connection between the fuse mounting base and the filter plug.

[0005] To achieve one or more of the above objectives or other objectives, this utility model proposes a plug-type filter, which includes: a filter body, a fuse mounting base, and a first waterproof ring;

[0006] The outer end face of the filter body is provided with a safety mounting groove;

[0007] The fuse mounting base is threaded into the fuse mounting groove, which is used to hold the fuse.

[0008] The first waterproof ring is fitted onto the safety mounting base;

[0009] When the safety mounting base is fixed in the safety mounting groove, the first waterproof ring abuts against the outer wall of the safety mounting base and the groove wall of the safety mounting groove.

[0010] Furthermore, the safety mounting groove includes: a locking groove section, a threaded groove section, and a stop groove section;

[0011] The slotted section is used to secure the fuse.

[0012] The threaded groove is threaded to the outer wall of the safety mounting base, and one end of the threaded groove is connected to the slot of the locking groove.

[0013] The bottom of the stop groove is connected to the other end of the threaded groove, and the stop groove is used to stop the outer end of the safety mounting base.

[0014] The first waterproof ring is located between the outer end of the safety mounting base and the bottom of the stop groove.

[0015] Furthermore, the safety mounting groove also includes a transition groove section, one end of which is connected to the threaded groove section, and the other end of which is connected to the stop groove section.

[0016] The outer peripheral wall of the safety mounting base includes: a threaded wall surface, a transition wall surface, and a stop wall surface;

[0017] The threaded wall surface is threaded to the threaded groove section;

[0018] One end of the transition wall is connected to the threaded wall, and the transition wall abuts against the transition groove section;

[0019] One end of the stop wall is connected to the other end of the transition wall, and the stop wall abuts against the stop groove section.

[0020] Furthermore, an extended auxiliary plate is provided around the outer end face of the filter body; the plug-type filter also includes a second waterproof ring; the second waterproof ring is sleeved on the outer peripheral wall of the filter body, and one end face of the second waterproof ring abuts against the surface of the extended auxiliary plate.

[0021] Furthermore, the inner surface of the extended auxiliary panel is divided into an inner panel surface, a side panel surface, and an outer panel surface; the inner ring edge of the side panel surface is connected to the outer ring edge of the inner panel surface, and the outer ring edge of the side panel surface is connected to the inner ring edge of the outer panel surface.

[0022] The second waterproof ring is provided with an auxiliary waterproof groove and an auxiliary waterproof hole; the auxiliary waterproof hole is located on the bottom wall of the auxiliary waterproof groove;

[0023] The wall of the auxiliary waterproof hole is attached to the outer peripheral wall of the filter body, the inner plate is attached to the bottom wall of the auxiliary waterproof groove, the side plate is attached to the side wall of the auxiliary waterproof groove, and the outer plate is attached to the end face of the second waterproof ring.

[0024] Furthermore, the outer panel is provided with a first auxiliary mounting hole, and the bottom wall of the auxiliary waterproof groove is provided with a second auxiliary mounting hole, with the first auxiliary mounting hole and the second auxiliary mounting hole being provided in a one-to-one correspondence.

[0025] Furthermore, the plug-type filter also includes a third waterproof ring; the first auxiliary hole includes a waterproof hole section and a fixing hole section, the third waterproof ring is embedded in the waterproof hole section, and the third waterproof ring and the waterproof hole section are coaxially arranged to be used for inserting a screw together.

[0026] Furthermore, the fuse mounting base is provided with a fuse auxiliary mounting groove, which is used to secure one end of the fuse and the fuse mounting groove is used to secure the other end of the fuse.

[0027] Furthermore, the plug-type filter also includes an elastic element, which is fixed to the bottom wall of the safety accessory groove.

[0028] Furthermore, the outer end face of the safety mounting base is provided with an auxiliary rotary groove.

[0029] Implementing the embodiments of this utility model will have the following beneficial effects:

[0030] The plug-type filter proposed in this utility model improves the connection strength between the fuse mounting base and the filter body by threading the fuse mounting base and the fuse mounting groove, thus initially ensuring the waterproof performance at the connection between the fuse mounting base and the filter body. The first waterproof ring is attached between the outer wall of the fuse mounting base and the groove wall of the fuse mounting groove, further enhancing the waterproof performance at the connection between the fuse mounting base and the filter body. Therefore, the plug-type filter improves its waterproof performance while ensuring convenient maintenance. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] in:

[0033] Figure 1 This is a schematic diagram of the structure of a plug-type filter in the prior art;

[0034] Figure 2 This is a schematic diagram of the plug-type filter in one embodiment of the present invention;

[0035] Figure 3 This is a structural schematic diagram of the decomposed state of the plug-type filter in one embodiment of the present invention;

[0036] Figure 4 This is a partial structural diagram of the plug-type filter in a rear view according to one embodiment of the present invention;

[0037] Figure 5 This is a schematic diagram of the front view of a plug-type filter in one embodiment of the present invention;

[0038] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure at point AA;

[0039] Figure 7 for Figure 5 A schematic diagram of the cross-sectional structure at point BB;

[0040] Figure 8 This is a cross-sectional view of the fuse mounting base of a plug-type filter in one embodiment of the present invention.

[0041] Figure label:

[0042] 100. Fuse box.

[0043] 10. Filter body; 11. Fuse mounting slot; 111. Locking slot section; 112. Threaded slot section; 113. Stop slot section; 114. Transition slot section; 12. Extended auxiliary plate; 121. Inner plate surface; 122. Side plate surface; 123. Outer plate surface; 124. First auxiliary hole; 1241. Waterproof hole section; 1242. Fixing hole section; 13. Inner plug; 14. Outer plug; 20. Fuse mounting base; 21. Threaded wall surface; 22. Transition wall surface; 23. Stop wall surface; 24. Fuse auxiliary groove; 25. Auxiliary rotating groove; 26. Rotation mark; 30. First waterproof ring; 40. Second waterproof ring; 41. Auxiliary waterproof groove; 411. Second auxiliary hole; 42. Auxiliary waterproof hole; 50. Screw; 60. Third waterproof ring; 70. Nut; 80. Washer; 90. Elastic element. Detailed Implementation

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order; the cold water mentioned in the specification and claims of this invention includes room temperature water.

[0045] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0046] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0047] Reference Figures 2 to 8 The first embodiment of this application proposes a plug-type filter, which includes: a filter body 10, a fuse mounting base 20 and a first waterproof ring 30;

[0048] The outer end face of the filter body 10 is provided with a safety mounting groove 11;

[0049] The fuse mounting base 20 is threadedly fixed in the fuse mounting groove 11, and the fuse mounting groove 11 is used to place the fuse.

[0050] The first waterproof ring 30 is fitted onto the safety mounting base 20;

[0051] When the safety mounting base 20 is fixed in the safety mounting groove 11, the first waterproof ring 30 abuts against the outer wall of the safety mounting base 20 and the groove wall of the safety mounting groove 11.

[0052] In this embodiment, a fuse is inserted into the fuse mounting slot 11, and then the fuse mounting base 20 is fixed with threads to achieve a mechanical seal with the fuse mounting slot 11. When the fuse mounting base 20 and the fuse mounting slot 11 are installed in place, the first waterproof ring 30 abuts against the outer wall of the fuse mounting base 20 and the slot wall of the fuse mounting slot 11, that is, the first waterproof ring 30 fills the gap between the outer wall of the fuse mounting base 20 and the slot wall of the fuse mounting slot 11. This forms a reliable waterproof barrier, effectively preventing the intrusion of water vapor, dust and other contaminants. The mechanical seal between the fuse mounting base 20 and the fuse mounting slot 11 is achieved by fixing it with threads, avoiding seal failure due to loosening.

[0053] Reference Figure 3 and Figure 6 The safety mounting groove 11 includes: a locking groove section 111, a threaded groove section 112, and a stop groove section 113;

[0054] The locking slot section 111 is used to lock the fuse;

[0055] The threaded groove section 112 is threadedly connected to the outer wall of the safety mounting base 20, and one end of the threaded groove section 112 is connected to the slot of the locking groove section 111.

[0056] The bottom of the stop groove 113 is connected to the other end of the threaded groove 112, and the stop groove 113 is used to stop the outer end of the safety mounting base 20.

[0057] The first waterproof ring 30 is located between the outer end of the safety mounting base 20 and the bottom of the stop groove 113.

[0058] In this embodiment, the fuse is fixed by the locking slot 111 to ensure tight contact between the fuse and the conductive sheet of the filter body 10, avoiding loosening or poor contact due to vibration and improving the stability of the electrical connection. The threaded connection makes it easy to unscrew the fuse mounting base 20. After the thread is fixed, the threaded slot 112 is used to connect with the outer wall of the fuse mounting base 20 to initially achieve the sealing strength at the connection between the threaded slot 112 and the fuse mounting base 20. The first waterproof ring 30 is used to achieve the sealing strength at the connection between the stop slot 113 and the fuse mounting base 20, so that the plug-type filter achieves double-layer sealing protection, effectively waterproofing, thereby reducing short circuits, corrosion and other faults caused by moisture, and extending the service life of the plug-type filter. After the threaded groove section 112 is threadedly fixed to the outer wall of the safety mounting base 20, the stop groove section 113 limits and fixes the outer end of the safety mounting base 20 to prevent excessive threading between the threaded groove section 112 and the outer wall of the safety mounting base 20. The stop groove section 113 supports the bottom of the first waterproof ring 30, and the side wall of the stop groove section 113 abuts against the outer side wall of the first waterproof ring 30. The inner side wall of the first waterproof ring 30 is encircled on the outer wall of the safety mounting base 20, which facilitates the placement of the first waterproof ring 30 in the safety mounting groove 11. This ensures the waterproof function of the first waterproof ring 30 while reducing damage to the first waterproof ring 30 caused by excessive compression. The outer end of the safety mounting base 20 is the end of the safety mounting base 20 that is exposed in the safety mounting groove 11.

[0059] In some embodiments, the inner wall of the locking slot section 111 is provided with a locking spring (not shown in the figure). When the fuse is inserted into the locking slot section 111, the locking spring is subjected to force and retracts towards the inner wall of the locking slot section 111. The locking spring is used to limit and fix the fuse. When the fuse is pulled out of the locking slot section 111, the locking spring is reset and deformed.

[0060] Reference Figure 3 and Figure 6The safety mounting groove 11 further includes a transition groove section 114, one end of which is connected to the threaded groove section 112, and the other end of which is connected to the stop groove section 113.

[0061] The outer peripheral wall of the safety mounting base 20 includes: a threaded wall surface 21, a transition wall surface 22, and a stop wall surface 23;

[0062] The threaded wall 21 is threadedly connected to the threaded groove 112;

[0063] One end of the transition wall 22 is connected to the threaded wall 21, and the transition wall 22 abuts against the transition groove section 114;

[0064] One end of the stop wall 23 is connected to the other end of the transition wall 22, and the stop wall 23 is attached to the stop groove 113.

[0065] In this embodiment, external moisture is initially blocked at the contact point between the stop wall 23 and the stop groove 113; then, the first waterproof ring 30 provides a second level of blocking; next, the contact point between the transition wall 22 and the transition groove 114 provides a third level of blocking; and finally, the threaded connection between the threaded wall 21 and the threaded groove 112 provides a fourth level of blocking. This further enhances the waterproof performance of the plug-type filter and ensures its safe use.

[0066] Reference Figures 2 to 7 The filter body 10 has an extended auxiliary plate 12 around its outer end face; the plug-type filter also includes a second waterproof ring 40; the second waterproof ring 40 is sleeved on the outer peripheral wall of the filter body 10, and one end face of the second waterproof ring 40 is attached to the surface of the extended auxiliary plate 12.

[0067] Specifically, the filter body 10 has an inner plug 13 on its inner end face and an outer plug 14 on its outer end face.

[0068] In this embodiment, the extended auxiliary plate 12 is used to help the filter body 10 be installed with the mounting surface, so as to hide the inner plug 13 inside the mounting surface; the second waterproof ring 40 is used to waterproof the gap between the extended auxiliary plate 12 and the mounting surface, so as to prevent moisture from entering the interior of the mounting surface through the gap, thereby preventing the inner plug 13 from getting damp.

[0069] In some embodiments, there is a height difference between the outer end face of the filter body 10 and the outer plate face of the extended auxiliary plate 12. Figure 2The external plug 14 is a plug with its socket pins located inside the slot. This height difference allows for the cover to be placed over the outer end face of the filter body 10, thereby covering the safety mounting slot 11 and the external plug 14 located on the outer end face.

[0070] Reference Figure 4 and Figure 6 The inner surface of the extended auxiliary plate 12 is divided into an inner panel surface 121, a side panel surface 122, and an outer panel surface 123; the inner ring edge of the side panel surface 122 is connected to the outer ring edge of the inner panel surface 121, and the outer ring edge of the side panel surface 122 is connected to the inner ring edge of the outer panel surface 123.

[0071] The second waterproof ring 40 is provided with an auxiliary waterproof groove 41 and an auxiliary waterproof hole 42; the auxiliary waterproof hole 42 is provided on the bottom wall of the auxiliary waterproof groove 41.

[0072] The wall of the auxiliary waterproof hole 42 is attached to the outer peripheral wall of the filter body 10, the inner plate surface 121 is attached to the bottom groove wall of the auxiliary waterproof groove 41, the side plate surface 122 is attached to the side groove wall of the auxiliary waterproof groove 41, and the outer plate surface 123 is attached to the end face of the second waterproof ring 40.

[0073] In this embodiment, the inner panel 121, the side panel 122, and the outer panel 123 are combined with the auxiliary waterproof groove 41 and the auxiliary waterproof hole 42 to achieve multi-layer waterproofing, thereby improving the waterproofing effect at this location.

[0074] Reference Figure 4 , Figure 6 and Figure 7 The outer panel 123 is provided with a first auxiliary hole 124, and the bottom wall of the auxiliary waterproof groove 41 is provided with a second auxiliary hole 411. The first auxiliary hole 124 and the second auxiliary hole 411 are provided in a one-to-one correspondence.

[0075] In this embodiment, the outer mounting plate 123 and the auxiliary waterproof groove 41 are fixed to the mounting surface in a stacked manner by using the first auxiliary mounting hole 124 and the second auxiliary mounting hole 411 combined with screws 50.

[0076] Reference Figure 4 , Figure 6 and Figure 7 The plug-type filter also includes a third waterproof ring 60; the first auxiliary hole 124 includes a waterproof hole section 1241 and a fixing hole section 1242, the third waterproof ring 60 is embedded in the waterproof hole section 1241, and the third waterproof ring 60 and the waterproof hole section 1241 are coaxially arranged to jointly insert the screw 50.

[0077] In this embodiment, the third waterproof ring 60 is used to prevent water vapor from entering the inside of the mounting surface through the first auxiliary mounting hole 124. The waterproof hole section 1241 is provided to accommodate the third waterproof ring 60, preventing the third waterproof ring 60 from being excessively squeezed by the screw 50.

[0078] In some embodiments, the plug-type filter further includes a nut 70 and a gasket 80. Both the nut 70 and the gasket 80 cooperate with the screw 50 to fix the extended auxiliary mounting plate 12 and the second waterproof ring 40 to the mounting surface, as shown in Figure 4 、 Figure 6 和 Figure 7 。

[0079] Refer to Figures 2 to 8 , a fuse auxiliary mounting groove 24 is provided in the fuse mounting seat 20. The fuse auxiliary mounting groove 24 is used to clip and hold one end of the fuse, and the fuse mounting groove 11 is used to clip and hold the other end of the fuse.

[0080] In this embodiment, the fuse auxiliary mounting groove 24 is used to pre-fix the fuse to the fuse mounting seat 20, enhancing the mounting stability of the fuse in the fuse mounting groove 11.

[0081] Refer to Figure 6 , the plug-type filter further includes an elastic member 90, and the elastic member 90 is fixed to the bottom groove wall of the fuse auxiliary mounting groove 24.

[0082] In this embodiment, the elastic member 90 is used to adapt to fuses of different length dimensions and ensure the mounting stability of the fuse.

[0083] Refer to Figure 2 , Figure 3 和 Figure 5 , an auxiliary rotation groove 25 is provided on the outer end face of the fuse mounting seat 20.

[0084] In this embodiment, the auxiliary rotation groove 25 is used to facilitate the screwing of the fuse mounting seat 20.

[0085] In some embodiments, the auxiliary rotation groove 25 is in a "one" shape; the auxiliary rotation groove 25 is in a "cross" shape.

[0086] In some embodiments, a rotation mark 26 is provided on the outer end face of the fuse mounting seat 20, facilitating the user to rotate in a specified direction, as shown in Figure 2 , Figure 3 和 Figure 5 。

[0087] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A plug-type filter, characterized in that, include: The filter body has a safety mounting groove on its outer end face. A fuse mounting bracket, which is threadedly fixed into a fuse mounting groove, the fuse mounting groove being used to hold a fuse; A first waterproof ring is fitted onto the safety mounting base; When the safety mounting base is fixed in the safety mounting groove, the first waterproof ring abuts against the outer wall of the safety mounting base and the groove wall of the safety mounting groove.

2. The plug-type filter according to claim 1, characterized in that, The safety mounting slot includes: A locking slot section, wherein the locking slot section is used to lock the fuse; A threaded groove segment is threadedly connected to the outer wall of the safety mounting base, and one end of the threaded groove segment is connected to the slot opening of the locking groove segment. The stop groove section has its bottom connected to the other end of the threaded groove section, and the stop groove section is used to stop the outer end of the safety mounting seat. The first waterproof ring is located between the outer end of the safety mounting base and the bottom of the stop groove.

3. The plug-type filter according to claim 2, characterized in that, The safety mounting groove also includes a transition groove section, one end of which is connected to the threaded groove section, and the other end of which is connected to the stop groove section. The outer peripheral wall of the safety mounting base includes: A threaded wall surface, wherein the threaded wall surface is threadedly connected to the threaded groove segment; A transition wall, one end of which is connected to the threaded wall, and the transition wall abuts against the transition groove section; A stop wall surface, one end of which is connected to the other end of the transition wall surface, and the stop wall surface abuts against the stop groove section.

4. The plug-type filter according to claim 1, characterized in that, The outer end face of the filter body is provided with an extended auxiliary plate; the plug-type filter also includes a second waterproof ring; the second waterproof ring is sleeved on the outer peripheral wall of the filter body, and one end face of the second waterproof ring is attached to the surface of the extended auxiliary plate.

5. The plug-type filter according to claim 4, characterized in that, The inner surface of the extended auxiliary panel is divided into an inner panel surface, a side panel surface, and an outer panel surface. The inner ring edge of the side panel surface is connected to the outer ring edge of the inner panel surface, and the outer ring edge of the side panel surface is connected to the inner ring edge of the outer panel surface. The second waterproof ring is provided with an auxiliary waterproof groove and an auxiliary waterproof hole; the auxiliary waterproof hole is located on the bottom wall of the auxiliary waterproof groove; The wall of the auxiliary waterproof hole is attached to the outer peripheral wall of the filter body, the inner plate is attached to the bottom wall of the auxiliary waterproof groove, the side plate is attached to the side wall of the auxiliary waterproof groove, and the outer plate is attached to the end face of the second waterproof ring.

6. The plug-type filter according to claim 5, characterized in that, The outer panel is provided with a first auxiliary mounting hole, and the bottom wall of the auxiliary waterproof groove is provided with a second auxiliary mounting hole. The first auxiliary mounting hole and the second auxiliary mounting hole are provided in a one-to-one correspondence.

7. The plug-type filter according to claim 6, characterized in that, The plug-type filter also includes a third waterproof ring. The first auxiliary hole includes a waterproof hole section and a fixing hole section. The third waterproof ring is embedded in the waterproof hole section and is coaxially arranged with the waterproof hole section for inserting a screw together.

8. The plug-type filter according to claim 1, characterized in that, The fuse mounting base is provided with a fuse auxiliary mounting groove, which is used to hold one end of the fuse and the fuse mounting groove is used to hold the other end of the fuse.

9. The plug-type filter according to claim 8, characterized in that, The plug-type filter also includes an elastic element, which is fixed to the bottom wall of the safety auxiliary groove.

10. The plug-type filter according to claim 1, characterized in that, The outer end face of the safety mounting base is provided with an auxiliary rotary groove.

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