CN213304310U - Filter - Google Patents

Abstract

A filter, comprising: a housing; the bus bars extend out of the shell, and each bus bar outside the shell is provided with a through hole; and each electric connection component penetrates through the through holes on the 1 bus bar outside the shell and is detachably fixed with the bus bar, and the electric connection components are fixedly connected with the shell. Each electric connection component penetrates through 1 of the outer portion of the shell, through holes in the busbar are detachably fixed with the busbar, the electric connection components are fixedly connected with the shell, and the miniaturization of the filter is achieved while the connection reliability of the filter and an external electric component is improved.

Description

Filter

Technical Field

The utility model relates to a wave filter.

Background

Power EMI filters, also known as electromagnetic interference filters, grid noise filters, etc., or collectively referred to as EMI filters. The power supply EMI filter transmits power supply power to equipment without attenuation, greatly attenuates EMI signals transmitted by a power supply, and protects the equipment from being damaged; meanwhile, the EMI signal generated by the equipment can be effectively controlled, and the EMI signal is prevented from entering a power grid, polluting the electromagnetic environment and damaging other equipment. The power supply EMI filter is an indispensable device for helping electromagnetic equipment and systems to meet relevant electromagnetic compatibility standards, such as IEC, EN, UL, CSA and other electromagnetic compatibility standards.

However, the existing filter structure still needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a wave filter to when increasing the connection reliability of wave filter and outside electrical component, reduce the installation space of wave filter, realize the miniaturization of wave filter.

In order to solve the above technical problem, an embodiment of the present invention provides a filter, include: a housing; the bus bars extend out of the shell, and each bus bar outside the shell is provided with a through hole; and each electric connection component penetrates through the through holes on the 1 bus bar outside the shell and is detachably fixed with the bus bar, and the electric connection components are fixedly connected with the shell.

Optionally, the method further includes: the first fixing part is fixedly connected with the shell, and the electric connecting part is fixedly connected with the first fixing part.

Optionally, each of the electrical connection components includes a first end portion and a second end portion located on both sides of the through hole, the first fixing component has a fixing groove recessed toward the inside of the housing, and the first end portion extends into the fixing groove and abuts against a bottom surface of the fixing groove.

Optionally, the number of the fixing grooves is the same as the number of the electrical connection members, and each electrical connection member extends into 1 fixing groove.

Optionally, the first end portion has a first end portion top surface and a first end portion side surface surrounding the first end portion top surface, and at least a part of the first end portion side surface of each first end portion is attached to the side wall surface of the fixing groove.

Optionally, each busbar outside the housing is provided with a busbar fixing portion, the first fixing component is further provided with a busbar fixing opening, and the busbar fixing portion penetrates through the busbar fixing opening and is fixedly clamped with the busbar fixing opening.

Optionally, the number of the busbar fixing openings is the same as that of the busbars outside the housing, and each busbar fixing portion penetrates through 1 busbar fixing opening.

Optionally, the busbar fixing opening is a U-shaped opening with a notch; the filter further comprises: and the second fixing part is fixedly connected with the shell, and the second fixing piece spans and closes the gap.

Optionally, the first fixing member is an insulating plate.

Optionally, the second fixing member is an insulating plate.

Optionally, the method further includes: and the electric connecting part is fixedly connected with the third fixing part.

Optionally, the third fixing part is welded, screwed or snap-fit connected with the housing.

Optionally, a third fixing opening penetrating through the third fixing part is formed in the third fixing part, the third fixing opening is located between the busbar outside the housing and the surface of the housing, each electrical connection part comprises a first end portion and a second end portion, the first end portion is located on two sides of the through hole, and the first end portion extends into the third fixing opening and is embedded with the third fixing opening.

Optionally, the number of the third fixing parts is the same as the number of the electrical connection parts, and the first end of each electrical connection part extends into the third fixing openings of 1 third fixing part.

Optionally, the housing comprises a support surface; the filter further comprises: and a support member fixed to the housing, at least a part of the support member being located between the third fixing member and the support surface and abutting against the support surface and the third fixing member, respectively.

Optionally, the housing has a housing mounting surface, the housing further has a housing opening thereon, the housing opening is within the range of the housing mounting surface, and the busbar extends out of the housing through the housing opening.

Optionally, the busbar outside the housing has a bent structure, the bent structure has a parallel portion adjacent to and parallel to the housing mounting surface, the through hole penetrates through the parallel portion, and part of the electrical connection member is located between the housing mounting surface and the parallel portion.

Optionally, the housing mounting surface further has a housing recess recessed toward the housing, and the electrical connection component extends into the housing recess and abuts against the bottom surface of the housing recess.

Optionally, each of the electrical connection components includes a fixing bolt and a fixing nut, and a screw of the fixing bolt passes through the through hole to be detachably connected with the fixing nut.

Optionally, the fixing bolt is welded to the housing.

Optionally, each of the electrical connection components further includes one or both of a fixing washer and a spring washer, and the fixing washer is located between the fixing nut and the busbar, and the spring washer is located between the fixing nut and the busbar.

Compared with the prior art, the utility model discloses technical scheme has following beneficial effect:

the utility model provides an among the wave filter, have a plurality of female row that stretch out in the shell, every mother that stretches out is arranged and is had the through-hole, and, passes the through-hole can dismantle fixed electric adapting unit with this mother, consequently, the wave filter can pass through with outside electrical component female arranging and electrically connecting component are connected, have stronger constructional strength to, can adopt great installation moment of torsion when the installation, increase the connection reliability of wave filter and outside electrical component. On this basis, since the electrical connection member is fixedly connected to the housing, the electrical connection member can be fixed also in the through-hole axis direction and in directions other than the through-hole axis direction by the cooperation between the through-hole and the fixed connection of the electrical connection member to the housing, so that, when the filter is connected to an external electrical component, the detachable portion of the electrical connection member can be detached and attached using 1 fastening tool without using an additional fastening tool to fix the electrical connection member, so that the installation space of the filter can be reduced, and the miniaturization of the filter is realized.

Drawings

FIG. 1 is a schematic diagram of a filter structure;

FIG. 2 is a schematic diagram of another filter configuration;

fig. 3 is a schematic diagram of a filter according to the present invention;

FIG. 4 is an exploded view of FIG. 3;

fig. 5 is a schematic structural diagram of another filter according to the present invention;

FIG. 6 is an exploded view of FIG. 5;

fig. 7 is a schematic structural diagram of another filter according to the present invention;

fig. 8 is an exploded view of fig. 7.

Detailed Description

As described in the background, existing filter structures remain to be improved. The reason why the existing filter structure still needs to be improved is described in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of a filter structure.

Referring to fig. 1, the filter 100 includes: a housing 110, the housing 110 having a mounting surface 111; filter electronics components (not shown) located within the housing 110; and a screw terminal 120 electrically connected to the filter electrical component, wherein the screw terminal 120 protrudes from the housing 110 through the mounting surface 111.

The filter 100 can be directly screw-coupled to the electric wire of the external electrical component through the screw terminal 120, thereby achieving an electrical connection between the filter and the external electrical component.

In the above embodiment, since the screw connection can be directly performed through the screw terminal 120, there is no need to use an installation tool, and thus, the required installation space of the filter is reduced. However, since the screw terminal 120 has a low structural strength, a small torque value is used in mounting in order not to break the screw terminal 120 when connecting an external electronic component and a filter, and thus, the connection between the screw terminal 120 and an external electrical component is liable to be unreliable.

Fig. 2 is a schematic diagram of another filter structure.

Referring to fig. 2, the filter 200 includes: a housing 210, the housing 210 having a mounting surface 211; filter electronics components (not shown) located within the housing 210; the bus bar 220 is electrically connected with the filter electrical component, the bus bar 220 extends out of the shell 210 through the mounting surface 211, and a through hole 221 is formed in the part of the bus bar 220 extending out of the shell 210; and a fixing bolt and a fixing nut (not shown), wherein the stud of the fixing bolt passes through the through hole 221 and is detachably connected with the fixing nut, so that the fixing bolt is fixedly connected with the fixing nut and the busbar 220.

By making the side wall surface of the through hole 221 and the stud surface of the fixing bolt fit, the fixing bolt can be electrically connected with the busbar 220.

When the filter is connected with the external electrical component, after the fixing nut is detached, the stud of the fixing bolt simultaneously penetrates through the through hole 221 of the busbar 220 and the fixing portion of the wire of the external electrical component, and then the fixing nut is fixedly connected with the fixing bolt, so that the electric connection between the filter and the external electrical component is realized.

In the above embodiment, since the filter is connected to the external electrical component by the fixing bolt, the fixing nut, and the busbar 220, and the fixing bolt, the fixing nut, and the busbar 220 have high structural strength, a large torque can be applied during installation, and the reliability of connection between the filter and the external electrical component is increased. However, in order to detach and mount the fixing nut, at least 2 detaching and fastening tools are required, 1 for fixing the fixing bolt, and 1 for detaching and mounting the fixing nut, and thus, a large mounting space is required to mount the filter, resulting in a failure to achieve the miniaturization requirement of the filter.

The technical problem is solved, the embodiment of the utility model provides a wave filter is through passing every electricity connection component 1 outside the casing through-hole on female arranging and can dismantle fixedly with this mother row, just electricity adapting unit with casing fixed connection reduces the installation space of wave filter when increasing wave filter and outside electrical component's the reliability of being connected, realizes the miniaturization of wave filter.

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Fig. 3 is a schematic diagram of a filter according to the present invention, and fig. 4 is an exploded view of fig. 3.

Referring to fig. 3 and 4, the filter includes: a housing 300.

Specifically, the housing 300 has a housing mounting surface 301, the housing 300 further has a housing opening 303, and the housing opening is within the housing mounting surface 301.

In this embodiment, the housing mounting surface 301 further has a housing recess 302 recessed toward the housing 300.

With continuing reference to fig. 3 and 4, the filter further includes: a plurality of bus bars 310 extending from the housing 300.

Specifically, the busbar 310 extends from the housing 300 through the housing opening 303.

In this embodiment, the number of the case openings 303 corresponds to the number of the bus bars 310, and each bus bar 310 passes through 1 case opening 303. Therefore, each of the housing openings 303 defines 1 protruding position of the busbar 310 on the housing installation surface 301, and can fix the busbar 310, thereby enhancing the fixation of the busbar 310.

For convenience of understanding, in the present embodiment, the number of the bus bars 310 extending from the housing 300 is 2 for example. However, the number of the busbars is not limited to 2, and the number of the busbars 310 extending from the housing 300 may also be 1 or more than 3 according to actual requirements.

In this embodiment, each busbar 310 outside the housing 300 has a through hole 311.

Specifically, the busbar 310 outside the housing 300 further includes a bent structure 312, the bent structure 312 includes a parallel portion 313 adjacent to and parallel to the housing mounting surface 301, and the through hole 311 penetrates the parallel portion 313.

On one hand, since the bus bar 310 outside the housing 300 has the bending structure 312, the structural strength of the extending part of the bus bar 310 is enhanced by the bending part in the bending structure 312, so that the size of the adopted mounting torque can be increased more when the filter is mounted, the connection reliability of the filter and an external electrical component is improved better, and the possibility that the bus bar 310 is damaged when the filter is mounted is reduced. On the other hand, since the bus bar 310 outside the housing 300 has the bent structure 312, and the bent structure 312 has the parallel portion 313 adjacent to and parallel to the housing mounting surface 301, the space occupied by the portion of the bus bar 310 outside the housing 300 can be saved by the bent structure 312, and the filter structure can be made more compact.

In this embodiment, the bending directions of the bending structures 312 of 2 busbars 310 are opposite. Therefore, in the extending direction of the parallel portion 313 of the bending structure 312, the distance between the through hole 311 of one bus bar 310 and the through hole 311 of another 1 bus bar 310 can be increased, so that a larger installation space can be provided for using a fastening tool when the filter is installed, and the installation performance of the filter is increased.

In 1 other embodiment, when the number of the busbars is more than 3, the bending directions of the bending structures of the adjacent busbars are opposite. Therefore, when the filter is installed, a larger installation space can be provided for the fastening tool, and the installation performance of the filter is improved.

In 1 other embodiment, the bending directions of the bending structures of the plurality of busbars are the same.

With continuing reference to fig. 3 and 4, the filter further includes: each electrical connection member 320 passes through a through hole 311 on 1 bus bar 310 outside the housing 300, and is detachably fixed to the bus bar 310, and the electrical connection member 320 is fixedly connected to the housing 300.

Because in the filter, a plurality of busbars 310 extending from the inside of the housing 300 are provided, each extending busbar 310 is provided with a through hole 311 and an electrical connection component 320 which passes through the through hole 311 and is detachably fixed with the busbar 310, the filter can be connected with an external electrical component through the busbar 310 and the electrical connection component 320, and has strong structural strength, so that a large installation torque can be adopted during installation, and the connection reliability of the filter and the external electrical component is improved. On this basis, since the electrical connection member 320 is fixedly connected to the housing 300, the electrical connection member 320 can be fixed in the direction in which the axis of the through hole 311 extends and in the direction other than the direction in which the axis of the through hole 311 extends by the engagement between the through hole 311 and the fixed connection of the electrical connection member 320 to the housing 300, so that, when the filter is connected to an external electrical component, the detachable portion of the electrical connection member can be detached and attached using 1 fastening tool without using an additional fastening tool to fix the electrical connection member 320, so that the installation space of the filter can be reduced, and the miniaturization of the filter can be realized.

In this embodiment, a part of the electrical connection member 320 is located between the housing mounting surface 301 and the parallel portion 313, and the electrical connection member 320 protrudes into the housing recess 302 and abuts against the bottom surface of the housing recess 302.

Specifically, the electrical connection member 320 includes a fixing bolt 321 and a fixing nut 322. The screw 3211 of the fixing bolt 321 passes through the through hole 311 and is detachably connected to the fixing nut 322. The head portion 3212 of the fixing bolt is located between the housing mounting surface 301 and the parallel portion 313, and the head portion 3212 of the fixing bolt extends into the housing groove 302 and is welded to the housing 300.

By inserting the screw 3211 through the through hole 311, the electrical connection member 320 is fixed in a direction out of the axis of the through hole 311, and by abutting the head 3212 against the bottom surface of the housing groove 302 and fastening the fixing nut 322 to the screw 3211, the fixing bolt 321 can be abutted against the bottom surface of the housing groove 302, thereby fixing the electrical connection member 320 in the axis direction of the through hole 311.

Moreover, in the present embodiment, the fixation between the electrical connection member 320 and the housing 300 is more firmly enhanced by the welding.

On this basis, the fixing of the electrical connection member 320 is reinforced by the limit of the side wall in the housing groove 302 facing the head portion 3212.

In 1 other embodiment, the head 3212 of the fixing bolt extends into the housing recess 302, but is not welded to the housing 300.

In this embodiment, the electrical connection member 320 further includes a fixing washer 323 and a spring washer 324, where the fixing washer 323 is located between the fixing nut 322 and the busbar 310, and the spring washer 324 is located between the fixing nut 322 and the fixing washer 323. Therefore, the busbar 310 and the fixing nut 322 are separated by the fixing gasket 323, so that the fixing gasket 323 can protect the busbar 310 when the fixing nut 322 is installed and detached, damage to the busbar 310 is reduced, and the reliability of the filter is improved. The spring washer 324 can also improve the fastening degree of the electrical connection member 320 to the busbar.

In 1 other embodiment, electrical connection 320 may also include one of a fixed shim 323 or a spring shim 324.

Fig. 5 is a schematic structural diagram of another filter according to the present invention, and fig. 6 is an exploded view of fig. 5.

Referring to fig. 5 and 6, the filter includes: a housing 400, and a plurality of busbars 410 extending from the housing 400.

Specifically, the housing 400 has a housing mounting surface 401, the housing 400 further has a housing opening 403 therein, and the housing opening 403 is within the range of the housing mounting surface 401.

The busbar 410 extends out of the housing 400 through the housing opening 403.

For convenience of understanding, in the present embodiment, the number of the bus bars 410 extending from the housing 400 is 2 for example. However, the number of the busbars is not limited to 2, and the number of the busbars 410 extending from the housing 400 may also be 1 or more than 3 according to actual requirements.

In this embodiment, each busbar 410 outside the housing 400 has a through hole 411.

Specifically, the busbar 410 outside the housing 400 further includes a bent structure 412, the bent structure 412 includes a parallel portion 413 adjacent to and parallel to the housing mounting surface 401, and the through hole 411 penetrates the parallel portion 413. The effect of the bending structure 412 is the same as that of the embodiment shown in fig. 3 and 4, and will not be described again.

In this embodiment, the bending directions of the bending structures 412 of 2 bus bars 410 are opposite. Therefore, in the extending direction of the parallel portion 413 of the bending structure 412, the distance between the through hole 411 of 1 bus bar 410 and the through hole 411 of another 1 bus bar 410 can be increased, so that when the filter is installed, a larger installation space can be provided for using a fastening tool, and the installation performance of the filter is increased.

In 1 other embodiment, when the number of the busbars is more than 3, the bending directions of the bending structures of the adjacent busbars are opposite. Therefore, when the filter is installed, a larger installation space can be provided for the fastening tool, and the installation performance of the filter is improved.

In 1 other embodiment, the bending directions of the bending structures of the plurality of busbars are the same.

With continuing reference to fig. 5 and 6, the filter further includes: each electrical connection part 420 passes through a through hole 411 on 1 bus bar 410 outside the housing 400 and is detachably fixed with the bus bar 410, and the electrical connection parts 420 are fixedly connected with the housing 400.

Because in the filter, have from arranging 410 of the stretching out in casing 400, every stretch out arrange 410 on have a through-hole 411, and, pass through-hole 411 and with this arrange 410 electric connection component 420 that can dismantle fixed, consequently, the filter can pass through with external electrical component arrange 410 and electric connection component 420 and be connected, has stronger constructional strength to, can adopt great installation moment of torsion when the installation, increase the connection reliability of filter and external electrical component. On this basis, since the electrical connection member 420 is fixedly connected to the housing 400, the electrical connection member 420 can be fixed in the direction in which the axis of the through hole 411 extends and in the direction other than the direction in which the axis of the through hole 411 extends by the cooperation between the through hole 411 and the fixed connection of the electrical connection member 420 to the housing 400, so that, when the filter is connected to an external electrical component, the detachable portion of the electrical connection member can be detached and mounted using 1 fastening tool without using an additional fastening tool to fix the electrical connection member 420, so that the mounting space of the filter can be reduced, and the miniaturization of the filter is achieved.

In this embodiment, the filter further includes: a first fixing member 430 fixedly coupled to the housing 400, and the electrical connection member 420 is fixedly coupled to the first fixing member 430. Thus, the electrical connection part 420 can be fixedly connected to the housing 400 by the first fixing part 430.

Specifically, in the present embodiment, the first fixing member 430 is fixedly connected to the housing 400 by screws.

In 1 other embodiment, the first fixing member 430 and the housing 400 may be fixedly connected by welding or a fastening structure.

In this embodiment, each busbar 410 outside the housing 400 has a busbar fixing portion 414, the first fixing member 430 further has a busbar fixing opening 432, and the busbar fixing portion 414 penetrates through the busbar fixing opening 432 and is fastened and fixed with the busbar fixing opening 432.

Specifically, in the present embodiment, each busbar 410 has 2 busbar fixing portions 414.

In this embodiment, the number of the busbar fixing openings 432 is the same as that of the busbars 410 outside the housing 400, and each busbar fixing portion penetrates through 1 busbar fixing opening 432. Therefore, the busbar fixing openings 432 and the busbars 410 are in one-to-one correspondence, and the limiting capacity of the busbar fixing openings 432 on the busbars 410 is enhanced.

Moreover, the busbar fixing portion 414 penetrates through the busbar fixing opening 432 and is clamped with the busbar fixing opening 432, so that the structural strength of the busbar 410 outside the shell 400 can be enhanced, the deformation risk of the busbar 410 is reduced, and meanwhile, the reliability of fixation between the busbar 410 and the shell 400 is enhanced.

In this embodiment, the first fixing member 430 is an insulating plate. Therefore, the first fixing member 430 not only can fixedly connect the electrical connection member 420 with the housing 400, but also can reduce the risk of electric shock of an installer when installing and maintaining the filter, thereby improving the safety during installation, maintenance and use of the filter.

In 1 other embodiment, the busbar fixing opening is a U-shaped opening with a notch. Therefore, the first fixing part is convenient to mount and dismount during mounting and maintenance, and accordingly, the mounting performance and the maintenance performance of the first fixing part and the busbar during mounting and maintenance are improved. And, the filter further includes: and the second fixing part is fixedly connected with the shell, and the second fixing piece spans and closes the gap. Therefore, the risk that the busbar is separated from the busbar fixing opening is reduced, and the reliability of fixation between the busbar and the first fixing component is enhanced. The second fixing part is fixedly connected with the shell through a clamping structure or a screw. The second fixing part is fixedly connected with the first fixing part through a clamping structure.

In 1 other embodiment, the second fixing member is an insulating plate. Therefore, through the second fixing component, the reliability of fixing between the busbar and the first fixing component can be enhanced, meanwhile, the danger of electric shock of installation personnel can be reduced when the filter is installed and maintained, and the safety of installation, maintenance and filter use is improved.

In the present embodiment, each of the electrical connection members 420 includes a first end 4201 and a second end 4202 located on both sides of the through hole 411, the first fixing member 430 has a fixing groove 431 depressed toward the inside of the housing 400, and the first end 4201 protrudes into the fixing groove 431 and abuts against the bottom surface of the fixing groove 431.

Specifically, the number of the fixing grooves 431 is the same as the number of the electrical connection members 420, and each electrical connection member 420 is inserted into 1 of the fixing grooves 431.

When the first end 4201 protrudes into the fixing groove 431 and abuts against the bottom surface of the fixing groove 431, the electrical connection member 420 and the housing 400 are fixed in the axial extending direction of the through hole 411 and in the direction other than the axial extending direction, and the electrical connection member 420 and the housing 400 are fixedly connected.

In this embodiment, the first end 4201 has a first end top surface (not shown) and a first end side surface (not shown) surrounding the first end top surface, and at least a portion of the first end 4201 side surface of each first end 4201 is fitted with the side wall surface of the fixing groove 431.

By making at least a part of the first end side surface of each first end 4201 abut against the side wall surface inside the fixing groove 430, the contact area of the first end 4201 with the fixing groove 430 is increased, and thus, the fixation between the electrical connection member 420 and the first fixing member 430 is reinforced, so that the fixed connection of the electrical connection member 420 and the housing 400 is more reliable.

Specifically, in the present embodiment, the electrical connection member 420 includes a fixing bolt 421 and a fixing nut 422. The first end 4201 is a head of the fixing bolt 421, the second end 4202 is an end of the screw 4211 of the fixing bolt 421, and the first end 4201 is located between the first fixing member 430 and the parallel portion 413. The fixing nut 422 and the second end 4202 are respectively located on both sides of the through hole 411 with respect to the first end 4201. In addition, the first end 4201 extends into the fixing groove 431 to abut against the first fixing member 430.

On the one hand, by inserting the screw rod 4211 through the through hole 411, the electrical connection member 420 is fixed in a direction other than the axial extension direction of the through hole 411, and on the other hand, by abutting the first end 4201 against the bottom surface of the fixing recess 431 and, at the same time, by fastening the fixing nut 422 to the screw rod 4211, the first end 4201 is brought into abutment against the bottom surface of the fixing recess 431, whereby the electrical connection member 420 is fixed in the axial extension direction of the through hole 411.

In 1 other embodiment, the first end 4201 extends into the fixing groove 431 and is welded to the first fixing member 430. Thus, the fixing strength between the electrical connection member 420 and the first fixing member 430 is more enhanced by the welding.

In this embodiment, the electrical connection member 420 further includes a fixing washer 423 and a spring washer 424, where the fixing washer 423 is located between the fixing nut 422 and the busbar 410, and the spring washer 424 is located between the fixing nut 422 and the fixing washer 423. Therefore, the fixing gasket 423 separates the busbar 410 and the fixing nut 422, so that the fixing gasket 423 can protect the busbar 410 when the fixing nut 422 is mounted and dismounted, damage to the busbar 410 is reduced, and the reliability of the filter is improved. The fastening degree of the electrical connection member 420 to the busbar 410 can be further improved by the spring washer 424.

In 1 other embodiment, the electrical connection component 420 may also include one of a securing washer 423 or a spring washer 424.

Fig. 7 is a schematic structural diagram of another filter of the present invention, fig. 8 is an exploded view of fig. 7, and the present embodiment is mainly different from the embodiment shown in fig. 5 to 6 in that the filter further includes a third fixing member fixed to the housing, and the electrical connection member is fixedly connected to the third fixing member.

The following detailed description is made with reference to the accompanying drawings.

Referring to fig. 7 and 8, the filter includes: a housing 500, and a plurality of busbars 510 extending from the interior of the housing 500.

Specifically, the housing 500 has a housing mounting surface 501, and the housing 500 further has a housing opening (not shown) within the range of the housing mounting surface 501.

The bus bars 510 extend out of the housing 500 through the housing opening, and each bus bar 510 outside the housing 500 has a through hole (not shown).

In this embodiment, the busbar 510 outside the housing 500 further includes a bent structure 512, the bent structure 512 includes a parallel portion 513 adjacent to and parallel to the housing mounting surface 501, and the through hole penetrates through the parallel portion 513. The effect of the bending structure 512 is the same as that of the embodiment shown in fig. 3 and 4, and is not described herein again.

With continuing reference to fig. 7 and 8, the filter further includes: each electrical connection member 520 passes through a through hole on 1 bus bar 510 outside the housing 500 and is detachably fixed to the bus bar 510, and the electrical connection member 520 is fixedly connected to the housing 500.

Because in the filter, have from the body 500 in stretch out arrange 510, every stretch out arrange 510 on have a through-hole, and, pass through the through-hole and with this arrange 510 detachable fixed electric connection component 520, consequently, the filter can pass through with external electrical component arrange 510 and electric connection component 520 are connected, have stronger constructional strength to, can adopt great installation torque when the installation, increase the connection reliability of filter and external electrical component. On this basis, since the electrical connection member 520 is fixedly connected to the housing 500, the electrical connection member 520 can be fixed also in the through-hole axis extending direction and in the direction other than the through-hole axis extending direction by the through-hole and the fitting between the electrical connection member 520 and the fixed connection of the housing 500, so that, when the filter is connected to an external electrical component, the detachable portion of the electrical connection member can be detached and attached using 1 fastening tool without using an additional fastening tool to fix the electrical connection member 520, so that the installation space of the filter can be reduced, and the miniaturization of the filter is realized.

In this embodiment, the filter further includes: and a third fixing member 550 fixed to the case 500, wherein the electrical connection member 520 is fixedly coupled to the third fixing member 550. Thus, the electrical connection member 520 is fixedly connected to the housing 500 by the third fixing member 550.

In this embodiment, the housing 500 includes a support surface 502.

The filter further comprises: and a support member 560 fixed to the housing 500, wherein at least a part of the support member 560 is positioned between the third fixing member 550 and the support surface 502, and abuts against the support surface 502 and the third fixing member 550, respectively.

Since the filter further includes the support member 560 fixed to the housing 500, and the support member 560 abuts against the support surface 502 and the third fixing member 550, respectively, the support member 560 can support the third fixing member 550, thereby enhancing the structural strength of the third fixing member 550 and reducing the risk of deformation of the third fixing member 550.

Specifically, in the present embodiment, the third fixing member 550 and the supporting member 560 are fixed by screws (not shown), and the supporting member 560 and the housing 500 are fixedly connected by screws (not shown). Accordingly, the third fixing member 550 is indirectly fixed to the housing 500 by the fixed connection with the supporting member 560.

In 1 other embodiment, the third fixing member is fixedly connected to the housing by screws (not shown) and is directly abutted against the support member, thereby being supported by the support member.

In other embodiments, the third fixing member is welded or engaged with the housing.

In other embodiments, the supporting member is fixed to the housing by welding or a snap-fit structure.

In this embodiment, since the support member 560 is an insulating support member, it is possible to reduce the risk of electric shock to an installer when installing and repairing the filter, and to improve the safety during installation, maintenance, and use of the filter.

In this embodiment, the third fixing part 550 has a third fixing opening 551 passing through the third fixing part 550, and the third fixing opening 551 is located between the busbar 510 outside the housing 500 and the surface of the housing 500.

In this embodiment, each of the electrical connection members 520 includes a first end portion 5201 and a second end portion 5202 on both sides of the through hole, and the first end portion 5201 extends into the third fixing opening 551 and is fitted into the third fixing opening 551. Therefore, the first end portion 5201 protrudes into the third fixing opening 551 and is fitted into the third fixing opening 551, whereby the fixing strength and reliability of the electrical connection member 520 and the housing 500 in directions other than the direction in which the axis of the through hole extends are enhanced.

Specifically, in the present embodiment, the number of the third fixing members 550 is the same as the number of the electrical connection members 520, and the first end portion 5201 of each electrical connection member 520 protrudes into the third fixing openings 551 of 1 third fixing members 550. Therefore, the fixing position between the third fixing member 550 and the case 500 is more flexible, and can be adjusted according to the structural deviation of the bus bar 510, the through hole, and the electrical connection member 520, thereby improving the assemblability of the filter.

Specifically, in the present embodiment, the electrical connection member 520 includes a fixing bolt 521 and a fixing nut 522. The first end 5201 is a head of the fixing bolt 521, the second end 5202 is an end of the screw 5211 of the fixing bolt 521, and the first end 5201 is located between the housing 500 and the parallel portion 513 and abuts against the housing mounting surface 501. The fixing nut 522 and the second end portion 5202 are located on both sides of the through hole with respect to the first end portion 5201.

On the one hand, the electrical connection member 520 is fixed in a direction other than the direction in which the axis of the through hole extends by passing the screw 5211 through the through hole, and on the other hand, the fixation of the electrical connection member 520 in the direction in which the axis of the through hole extends is achieved by fastening the fixing nut 522 to the screw 5211 and blocking the first end portion 5201 by the case mounting surface 501 (the first end portion 5201 abuts against the case mounting surface 501).

In 1 other embodiment, the electrical connection component may also be 2 or more than 2 clamping structure components which can be clamped and connected with each other.

In this embodiment, the electrical connection member 520 further includes a fixing spacer 523, and the fixing spacer 523 is located between the fixing nut 522 and the busbar 510.

In this embodiment, the filter further includes: a first fixing member 530 fixedly coupled to the case 500.

In this embodiment, the first fixing member 530 is an insulating plate having a flat plate structure and serves as an insulator, and the first end portion 5201 abuts against a surface of the first fixing member 530.

In 1 other embodiment, the electrical connection member is fixedly connected to the first fixing member. Specifically, the first fixing member has a fixing groove recessed toward the inside of the housing, and the first end portion protrudes into the fixing groove and abuts against a bottom surface of the fixing groove. Specifically, the structure of the fixing groove is the same as the structure of the fixing groove of the first fixing part 430 in the embodiment shown in fig. 5 to 6, and is not repeated here.

In this embodiment, each busbar 510 outside the housing 500 has a busbar fixing portion (not shown), and the first fixing member 530 further has a busbar fixing opening 531, and the busbar fixing portion penetrates through the busbar fixing opening 531.

In this embodiment, the number of the busbar fixing openings 531 is the same as that of the busbars 510 outside the housing 500, and each busbar fixing portion penetrates through 1 busbar fixing opening 531. Therefore, the busbar 510 is limited by the busbar fixing openings 531 in a one-to-one correspondence manner.

Moreover, through with female fixed part of arranging runs through female fixed opening 531 that arranges can strengthen the outer structural strength who arranges 510 of casing 500, reduces female deformation risk of arranging 510, simultaneously, has strengthened the reliability of fixing between female arranging 510 and casing 500.

In this embodiment, the first fixing member 530 is an insulating plate. Therefore, the first fixing member 530 can reduce the risk of electric shock of an installer and improve the safety during installation, maintenance and use of the filter.

In this embodiment, the busbar fixing opening 531 is a U-shaped opening with a notch. Therefore, the first fixing member 530 is advantageously mounted and dismounted in mounting and maintenance, and thus, the mountability and maintainability in mounting and maintenance of the first fixing member 530 and the busbar 510 are advantageously enhanced.

In this embodiment, the filter further includes: a second fixing member 540 fixedly coupled to the housing 500, and the second fixing member 540 crosses and closes the gap. Therefore, the risk that the busbar 510 is separated from the busbar fixing opening 531 is reduced, and the reliability of the fixing between the busbar 510 and the first fixing member 530 is enhanced.

In this embodiment, the second fixing member 540 is fixedly connected to the housing by a fastening structure or a screw.

In other embodiments, the second fixing component and the first fixing component may be fixedly connected through a snap structure.

In this embodiment, the second fixing member 540 is an insulating plate. Therefore, the second fixing member 540 can not only enhance the reliability of the fixing between the busbar 510 and the first fixing member 530, but also reduce the risk of electric shock of an installer when installing and maintaining the filter, thereby improving the safety during installation, maintenance and use of the filter.

In other embodiments, the filter does not include a first fixed component and a second fixed component.

In this embodiment, the electrical connection component 520 further includes a fixing washer 523 and a spring washer 524, where the fixing washer 523 is located between the fixing nut 522 and the busbar 510, and the spring washer 524 is located between the fixing nut 522 and the fixing washer 523. Therefore, the busbar 510 and the fixing nut 522 are separated by the fixing gasket 523, so that the fixing gasket 523 can protect the busbar 510 when the fixing nut 522 is mounted and dismounted, damage to the busbar 510 is reduced, and the reliability of the filter is improved. The spring washer 524 also improves the fastening degree of the electrical connection member 520 to the busbar 510.

In 1 other embodiment, the electrical connection component 520 may also include one of a fixed shim 523 or a spring shim 524.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims (21)

1. A filter, comprising:

a housing;

the bus bars extend out of the shell, and each bus bar outside the shell is provided with a through hole;

and each electric connection component penetrates through the through holes on the 1 bus bar outside the shell and is detachably fixed with the bus bar, and the electric connection components are fixedly connected with the shell.

2. The filter of claim 1, further comprising: the first fixing part is fixedly connected with the shell, and the electric connecting part is fixedly connected with the first fixing part.

3. The filter according to claim 2, wherein each of the electrical connection members includes a first end portion and a second end portion on both sides of the through hole, the first fixing member has a fixing groove recessed toward the inside of the housing, and the first end portion protrudes into the fixing groove and abuts against a bottom surface of the fixing groove.

4. A filter according to claim 3, wherein the number of the fixing grooves is the same as the number of the electrical connection members, each electrical connection member protruding into 1 of the fixing grooves.

5. The filter of claim 4, wherein the first end portion has a first end portion top surface and a first end portion side surface surrounding the first end portion top surface, and at least a portion of the first end portion side surface of each first end portion abuts the side wall surface of the fixing groove.

6. The filter of claim 3, wherein each busbar outside the housing has a busbar fixing portion, the first fixing member further has a busbar fixing opening, and the busbar fixing portion penetrates through the busbar fixing opening and is fastened and fixed with the busbar fixing opening.

7. The filter of claim 6, wherein the number of the busbar fixing openings is the same as the number of busbars outside the housing, and each busbar fixing portion passes through 1 busbar fixing opening.

8. The filter according to claim 6, wherein the bus bar fixing opening is a U-shaped opening having a notch; the filter further comprises: and the second fixing part is fixedly connected with the shell, and spans and closes the gap.

9. The filter according to any of claims 2 to 8, wherein the first fixing member is an insulating plate.

10. The filter of claim 8, wherein the second fixed member is an insulating plate.

11. The filter of any of claims 1 to 8, further comprising: and the electric connecting part is fixedly connected with the third fixing part.

12. The filter of claim 11, wherein the third securing member is welded, screwed, or snap-fit to the housing.

13. The filter according to claim 11, wherein the third fixing member has a third fixing opening penetrating through the third fixing member, the third fixing opening is located between the busbar outside the housing and the surface of the housing, each electrical connection member includes a first end portion and a second end portion located on both sides of the through hole, and the first end portion extends into the third fixing opening and is engaged with the third fixing opening.

14. The filter of claim 13, wherein the number of the third fixing parts is the same as the number of the electrical connection parts, and the first end of each electrical connection part protrudes into the third fixing openings of 1 third fixing part.

15. The filter of claim 13, wherein the housing comprises a support surface; the filter further comprises: and a support member fixed to the housing, at least a part of the support member being located between the third fixing member and the support surface and abutting against the support surface and the third fixing member, respectively.

16. The filter of claim 1, wherein the housing has a housing mounting face, the housing further having a housing opening therein, the housing opening being within the housing mounting face, and wherein the bus bar extends from within the housing through the housing opening.

17. The filter according to claim 16, wherein the busbar outside the housing has a bent structure having a parallel portion adjacent to and parallel to the housing mounting surface, the through-hole penetrates the parallel portion, and a part of the electrical connection member is located between the housing mounting surface and the parallel portion.

18. The filter of claim 17 wherein said housing mounting surface further has a housing recess recessed therein toward the housing, said electrical connection member extending into said housing recess and abutting said housing recess bottom surface.

19. The filter of claim 1, wherein each of the electrical connection components comprises a fixing bolt and a fixing nut, and a screw of the fixing bolt passes through the through hole to be detachably connected with the fixing nut.

20. The filter of claim 19, wherein the fixing bolt is welded to the housing.

21. The filter of claim 19, wherein each of the electrical connection components further comprises one or both of a securing washer and a spring washer, and wherein the securing washer is located between the securing nut and the busbar and the spring washer is located between the securing nut and the busbar.

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