CN210578454U

CN210578454U - Anti-surge EMI filter

Info

Publication number: CN210578454U
Application number: CN201921828659.0U
Authority: CN
Inventors: 杨栓平
Original assignee: Xi'an Ict Electromagnetic Technology Co Ltd
Current assignee: Xi'an Ict Electromagnetic Technology Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-05-19
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses an anti-surge EMI filter, including the filter body, the upper end fixedly connected with heat dissipation mechanism of filter body, the equal fixedly connected with mounting panel of side lower extreme around the filter body, the inside both sides of mounting panel all are equipped with the through-hole, and the through-hole upper end is close to the equal fixedly connected with fixed block in one side at place mounting panel middle part, and the inside of fixed block is all inserted and is equipped with the picture peg, the beneficial effects of the utility model are that: the utility model discloses a set up extrusion mechanism and have the fixed block of picture peg on neotype mounting panel, during the use, can pass the through-hole on prefabricated hole on the circuit board and the mounting panel in proper order with the fixed column from the bottom up of extrusion mechanism, extend to the upper end of mounting panel to pass the logical groove that sets up on the fixed column with the picture peg, fix the position of fixed column this moment, thereby fix the filter body on the circuit board through the mounting panel, this in-process need not with the help of other instruments and bolt, it is comparatively convenient to operate.

Description

Anti-surge EMI filter

Technical Field

The utility model relates to a wave filter technical field specifically is anti surge EMI wave filter.

Background

The filter is a filter that allows a frequency signal to enter the device when the device is operating normally, and the anti-surge EMI filter is one of the filters.

At present, most of surge-resistant EMI filters are fixed on a circuit board through bolts, other mounting tools are needed during mounting and dismounting, in the mounting and dismounting process, external threads of mounted bolts and internal threads on inner side walls of holes are easy to damage, the phenomenon of wire sliding occurs, a new internal thread needs to be processed on the inner side walls of the holes through equipment, and a matched bolt needs to be replaced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an anti-surge EMI filter to solve the problems that the prior anti-surge EMI filter is fixed on a circuit board by bolts, needs other mounting tools when being assembled and disassembled, in the process of disassembly and assembly, the external thread of the installed bolt and the internal thread on the inner side wall of the hole are easy to damage, the phenomenon of thread slipping occurs, a new internal thread needs to be processed on the inner side wall of the hole by means of equipment, and a matched bolt needs to be replaced, the operation is troublesome, in addition, when heat is dissipated, most of the anti-surge EMI filters transfer the heat generated by the internal electronic components to the shell, and then dissipate the heat, because of the limitation of the area size of the housing of the anti-surge EMI filter, the heat dissipation speed of the anti-surge EMI filter is slow, the anti-surge EMI filter is in a high-temperature state for a long time, and the service life of the anti-surge EMI filter is shortened.

In order to achieve the above object, the utility model provides a following technical scheme: anti surge EMI wave filter, including the filter body, the upper end fixedly connected with heat dissipation mechanism of filter body, the equal fixedly connected with mounting panel of side lower extreme around the filter body, the inside both sides of mounting panel all are equipped with the through-hole, the through-hole upper end is close to the equal fixedly connected with fixed block in one side at place mounting panel middle part, the inside of fixed block is all inserted and is equipped with the picture peg, the equal fixedly connected with limiting plate in one side at place mounting panel middle part is kept away from to the through-hole upper end, one side lower extreme that the limiting plate is close to the homonymy through-hole all is equipped with the slot, the slot all lies in same water flat line with the homonymy picture peg, equal fixedly connected with rubber circle on.

Preferably, the heat dissipation mechanism includes the heating panel, the lower extreme of heating panel is equipped with the mounting groove, the heating panel passes through the mounting groove joint on the filter body, the inside wall of mounting groove and the lateral wall fixed connection of filter body.

Preferably, the upper end of the heat dissipation plate is of a concave structure, a plurality of heat dissipation fins are fixedly connected inside the upper end of the heat dissipation plate, and the distances between every two adjacent heat dissipation fins are the same.

Preferably, the extrusion mechanism includes the bottom plate, the equal fixedly connected with fixed column in upper end middle part of bottom plate, the upper end of fixed column all passes the homonymy through-hole and all extends to the upper end of homonymy mounting panel, the lateral wall of fixed column all contacts with the inside rubber circle inside wall that sets up of place through-hole, the fixed column is located the inside logical groove that all is equipped with of one end of homonymy mounting panel upper end, the lateral wall middle part of fixed column all is equipped with solid fixed ring, gu fixed ring all sliding connection is on the lateral wall of place fixed column, gu fixed ring's upper end all contacts with the.

Preferably, the outer side walls of the fixing columns between the fixing rings and the bottom plates on the same side are sleeved with compression springs, the diameters of the compression springs are smaller than the outer diameter of the fixing rings on the same side, the upper ends of the compression springs are fixedly connected to the fixing rings on the same side, and the lower ends of the compression springs are fixedly connected to the bottom plates on the same side.

Preferably, the picture peg all is L type structure, the picture peg is kept away from one side in the middle part of the homonymy mounting panel and all passes the logical groove that sets up on place fixed block and the homonymy fixed column in proper order and all extends to inside the slot that sets up on the homonymy limiting plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up extrusion mechanism and have the fixed block of picture peg on neotype mounting panel, during the use, can pass the through-hole on prefabricated hole on the circuit board and the mounting panel in proper order with the fixed column from the bottom up of extrusion mechanism, extend to the upper end of mounting panel to pass the logical groove that sets up on the fixed column with the picture peg, fix the position of fixed column this moment, thereby fix the filter body on the circuit board through the mounting panel, this in-process need not with the help of other instruments and bolt, it is comparatively convenient to operate.

2. The utility model discloses a having set up heat dissipation mechanism on the filter body, having set up a plurality of radiating fin on radiating mechanism's the heating panel, during operation, the heat that the filter body produced can transmit on heating panel and the radiating fin, increases the utility model discloses a heat radiating area to reach the purpose that improves the radiating rate, avoid the utility model discloses shorten its life under long-time being in high temperature state.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the heat dissipation mechanism of the present invention;

FIG. 3 is a view of the area A in FIG. 1;

fig. 4 is the utility model discloses the structural schematic of limiting plate.

In the figure: 1. a filter body; 2. a heat dissipation mechanism; 21. a heat dissipation plate; 22. mounting grooves; 23. a heat dissipating fin; 3. mounting a plate; 4. a through hole; 5. a rubber ring; 6. an extrusion mechanism; 61. a base plate; 62. fixing a column; 63. a compression spring; 64. a fixing ring; 65. a through groove; 7. a limiting plate; 8. a slot; 9. a fixed block; 10. and (4) inserting plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: anti surge EMI wave filter, including filter body 1, filter body 1's upper end fixedly connected with heat dissipation mechanism 2, the equal fixedly connected with mounting panel 3 of side lower extreme around filter body 1, the inside both sides of mounting panel 3 all are equipped with through-hole 4, the equal fixedly connected with fixed block 9 in one side that through-hole 4 upper end is close to place mounting panel 3 middle part, the inside of fixed block 9 is all inserted and is equipped with picture peg 10, the equal fixedly connected with limiting plate 7 in one side at place mounting panel 3 middle part is kept away from to through-hole 4 upper end, one side lower extreme that limiting plate 7 is close to homonymy through-hole 4 all is equipped with slot 8, be convenient for fixed homonymy picture peg 10, slot 8 all is located same water flat line with homonymy picture peg 10, equal fixedly connected with rubber circle 5 on through-hole 4's the inside wall.

The heat dissipation mechanism 2 comprises a heat dissipation plate 21, the lower end of the heat dissipation plate 21 is provided with a mounting groove 22, the heat dissipation plate 21 is clamped on the filter body 1 through the mounting groove 22, the inner side wall of the mounting groove 22 is fixedly connected with the outer side wall of the filter body 1, so that the heat dissipation plate 21 is conveniently fixed on the filter body 1, the upper end of the heat dissipation plate 21 is of a concave structure, a plurality of heat dissipation fins 23 are fixedly connected inside the upper end of the heat dissipation plate 21, the distances between every two adjacent heat dissipation fins 23 are the same, so that the heat dissipation speed of the utility model is accelerated, the extrusion mechanism 6 comprises a bottom plate 61, the middle part of the upper end of the bottom plate 61 is fixedly connected with a fixing column 62, the upper end of the fixing column 62 passes through a through hole 4 at the same side and extends to the upper end of the mounting plate 3 at, the middle parts of the outer side walls of the fixing columns 62 are respectively sleeved with a fixing ring 64, the fixing rings 64 are respectively connected to the outer side walls of the fixing columns 62 in a sliding manner, the upper ends of the fixing rings 64 are respectively contacted with the lower ends of the same side mounting plates 3, the mounting plates 3 are conveniently fixed on the circuit board, the outer side walls of the fixing columns 62 between the fixing rings 64 and the same side bottom plate 61 are respectively sleeved with a compression spring 63, the diameters of the compression springs 63 are respectively smaller than the outer diameters of the same side fixing rings 64, the upper ends of the compression springs 63 are respectively fixedly connected to the same side fixing rings 64, the lower ends of the compression springs 63 are respectively fixedly connected to the same side bottom plate 61, the same side fixing rings 64 are conveniently abutted against the lower ends of the circuit board during installation, the inserting plates 10 are respectively of an L-shaped structure, one side of the inserting plate 10 far, so that the upper ends of the fixing posts 62 are fixed.

Specifically, when the utility model is used, the utility model is placed on the circuit board, and the through hole 4 arranged on the mounting plate 3 is aligned with the pre-fabricated hole arranged in advance on the circuit board, because the mounting plate 3 of the utility model is provided with the extruding mechanism 6 and the fixing block 9 with the inserting plate 10, when in installation, the fixing column 62 of the extruding mechanism 6 sequentially passes through the pre-fabricated hole on the circuit board and the through hole 4 on the mounting plate 3 from bottom to top, extends to the upper end of the mounting plate 3, and the lower end of the through groove 65 arranged on the fixing column 62 and the upper end of the mounting plate 3 are positioned on the same plane, then the inserting plate 10 passes through the through groove 65 arranged on the fixing column 62, is inserted into the slot 8 arranged on the limiting plate 7, the position of the fixing column 62 is fixed, then the steps are repeated to install other extruding mechanisms 6 on the circuit board and the mounting plate, thereby fix filter body 1 on the circuit board, because the utility model discloses a last heat dissipation mechanism 2 that has set up of filter body 1 has set up a plurality of radiating fin 23 on radiating plate 21 of heat dissipation mechanism 2, the utility model discloses during operation, on the heat that filter body 1 produced can transmit heating plate 21 and radiating fin 23, increase the utility model discloses a heat radiating area to reach the purpose that improves the radiating rate.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Anti-surge EMI filter, which is characterized by comprising a filter body (1), the upper end of the filter body (1) is fixedly connected with a heat dissipation mechanism (2), the front and back side lower ends of the filter body (1) are fixedly connected with mounting plates (3), through holes (4) are arranged on both sides of the inside of the mounting plates (3), one side of the upper end of each through hole (4) close to the middle of the corresponding mounting plate (3) is fixedly connected with a fixing block (9), inserting plates (10) are inserted in the fixing blocks (9), one side of the upper end of each through hole (4) far away from the middle of the corresponding mounting plate (3) is fixedly connected with a limiting plate (7), one side lower end of each limiting plate (7) close to the same side through hole (4) is provided with a slot (8), the slots (8) and the same side inserting plates (10) are positioned on the same horizontal line, and rubber rings (5) are fixedly connected on, and extrusion mechanisms (6) are arranged on two sides of the lower end of the mounting plate (3).

2. The anti-surge EMI filter of claim 1, wherein: radiating mechanism (2) are including heating panel (21), the lower extreme of heating panel (21) is equipped with mounting groove (22), heating panel (21) pass through mounting groove (22) joint on filter body (1), the inside wall of mounting groove (22) and the lateral wall fixed connection of filter body (1).

3. The anti-surge EMI filter of claim 2, wherein: the upper end of heating panel (21) is concave structure, the inside fixedly connected with a plurality of radiating fin (23) in upper end of heating panel (21), adjacent two distance between radiating fin (23) is the same.

4. The anti-surge EMI filter of claim 1, wherein: extrusion mechanism (6) include bottom plate (61), the equal fixedly connected with fixed column (62) in upper end middle part of bottom plate (61), the upper end of fixed column (62) all passes homonymy through-hole (4) and all extends to the upper end of homonymy mounting panel (3), the lateral wall of fixed column (62) all contacts with the inside rubber circle (5) inside wall that sets up of place through-hole (4), fixed column (62) are located inside logical groove (65) that all is equipped with of one end of homonymy mounting panel (3) upper end, the lateral wall middle part of fixed column (62) all overlaps and is equipped with solid fixed ring (64), gu fixed ring (64) all sliding connection is on the lateral wall of place fixed column (62), gu fixed ring (64)'s upper end all contacts with the lower extreme of homonymy mounting.

5. The anti-surge EMI filter of claim 4, wherein: the outer side wall of a fixing column (62) between the fixing ring (64) and the bottom plate (61) on the same side is sleeved with a compression spring (63), the diameter of the compression spring (63) is smaller than the outer diameter of the fixing ring (64) on the same side, the upper end of the compression spring (63) is fixedly connected to the fixing ring (64) on the same side, and the lower end of the compression spring (63) is fixedly connected to the bottom plate (61) on the same side.

6. The anti-surge EMI filter of claim 1, wherein: picture peg (10) all are L type structure, picture peg (10) keep away from one side in the middle part of homonymy mounting panel (3) and all pass logical groove (65) that set up on place fixed block (9) and homonymy fixed column (62) in proper order and all extend to inside slot (8) that set up on homonymy limiting plate (7).