Filter shell structure and power supply filter

Abstract

The utility model relates to the electrical technical field, and relates to a filter housing structure and a power supply filter, the filter housing structure comprises: a plastic housing, one end of which is closed and the other end of which is open; the connecting piece is arranged at the central position of the outer side of the closed end of the plastic shell and is used for connecting a mounting carrier plate of external equipment; the positioning assembly comprises a first positioning piece arranged on the outer side of the closed end of the plastic shell and a second positioning piece arranged on the mounting carrier plate, the first positioning piece is located on one side of the connecting piece, and the first positioning piece and the second positioning piece are matched to prevent the plastic shell from rotating; and the end cover is connected with the opening end of the plastic shell, and terminal mounting holes are formed in the end cover and used for mounting wiring terminals. According to the utility model, the fixing positions of the filters are unified, and the effect consistency of the filters is ensured.

Description

Technical Field

[0001] The utility model belongs to the field of electrical technology and relates to filter technology, in particular to a filter housing structure and a power filter. Background Art

[0002] At present, household appliance filters are usually fixed by bolts, see Figure 1 The conventional design is to set a single connector 2 (such as a bolt) at the bottom of the filter plastic shell 1. The disadvantage of fixing with a single connector is that the product will rotate to a certain extent after being fixed, causing the connection harness to cross, thus affecting the consistency of the entire product. In addition, the connection method of the filter adopts a structure with five terminal blocks (see Figure 2 ), the five connection terminals are evenly installed on the end cover 4, and it is easy to confuse the input and output during connection, and it is easy to make mistakes in the input and output connection, resulting in a high defect rate and affecting production efficiency. Utility Model Content

[0003] The utility model aims at the technical problems of poor consistency of existing filters due to rotation when fixed, and provides a novel filter housing structure and a power supply filter, so that the fixing position of the filter is unified and the consistency of the filter effect is guaranteed.

[0004] In order to achieve the above-mentioned object, the first aspect of the utility model provides a filter housing structure, comprising:

[0005] A plastic shell, one end of which is closed and the other end is open;

[0006] A connector, disposed at the center of the outer side of the closed end of the plastic housing, for connecting to a mounting plate of an external device;

[0007] A positioning assembly, comprising a first positioning member disposed on the outside of the closed end of the plastic housing and a second positioning member disposed on the mounting carrier, wherein the first positioning member is located on one side of the connecting member, and the first positioning member cooperates with the second positioning member to prevent the plastic housing from rotating;

[0008] The end cover is connected to the open end of the plastic shell, and the end cover is provided with a terminal mounting hole for mounting a wiring terminal.

[0009] In some embodiments, it also includes a limiter disposed on the outside of the bottom of the plastic shell, the limiter is located on one side of the connector and is spaced apart from the first positioning member, the height of the limiter is lower than the height of the connector, and is used to limit the insulation distance between the filter and the mounting substrate.

[0010] In some embodiments, the limiting member is configured as an arc-shaped structure, or an annular structure, or a polygonal structure, or an elliptical structure, or a circular structure.

[0011] In some embodiments, a plug-in plastic shell is provided on the outer side of the end cover, the input terminal mounting hole is located inside the plug-in plastic shell, and the output terminal mounting hole is located outside the plug-in plastic shell.

[0012] In some embodiments, the plug-in plastic shell is located at the center or one side of the outer side of the end cover; when the plug-in plastic shell is located at the center of the outer side of the end cover, the output terminal mounting hole is located at the edge of the outer side of the end cover; when the plug-in plastic shell is located on one side of the outer side of the end cover, the output terminal mounting hole is located on the other side of the outer side of the end cover.

[0013] In some embodiments, a plug-in plastic shell is provided on the outer side of the end cover, the output terminal mounting hole is located inside the plug-in plastic shell, and the input terminal mounting hole is located outside the plug-in plastic shell.

[0014] In some embodiments, the plug-in plastic shell is located at the center or one side of the outer side of the end cover; when the plug-in plastic shell is located at the center of the outer side of the end cover, the input terminal mounting hole is located at the edge of the outer side of the end cover; when the plug-in plastic shell is located on one side of the outer side of the end cover, the input terminal mounting hole is located on the other side of the outer side of the end cover.

[0015] In some embodiments, the end cap is connected to the plastic housing in a snap-on manner and fixed by epoxy resin.

[0016] In some embodiments, a wiring mark is further provided on the outer side of the end cover, and the wiring mark includes a live wire mark L, a neutral wire mark N and a ground wire mark.

[0017] In order to achieve the above-mentioned purpose, the second aspect of the utility model provides a power supply filter, including a filter housing structure, wiring terminals, and components. The components are located in the filter housing structure, and the filter housing structure adopts the filter housing structure described in the first aspect of the utility model; the wiring terminals pass through the end cover and are connected to the components through cables, and the components are welded to the inner side of the end cover.

[0018] Compared with the prior art, the advantages and positive effects of the utility model are:

[0019] (1) In the filter housing structure and power filter of the utility model, a positioning assembly is arranged at the bottom of the plastic housing. Through the positioning function of the positioning assembly, the plastic housing will not rotate during use, and the connection will not rotate, thereby making the filter fixed position uniform and ensuring the consistency of the filter effect.

[0020] (2) In the filter housing structure and power filter of the utility model, a limiter is provided at the bottom of the plastic housing. When the filter is installed, the limiter is used to maintain a gap between the filter and the mounting plate of the external device, thereby increasing the insulation distance and achieving a shock-absorbing effect.

[0021] (3) In the filter housing structure and the power filter of the utility model, a plug-in plastic shell is provided on the outer side of the end cover to separate the input and output areas, thereby achieving a fool-proof effect.

[0022] (4) The filter housing structure and power supply filter of the present invention are simple and convenient to assemble. Compared with the assembly production defect rate of the existing structure (1%), the assembly production defect rate of the filter housing structure and power supply filter of the present invention is low, not exceeding 0.5%, which is significantly better than the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the plastic shell of the existing filter shell structure;

[0024] Figure 2 It is a structural schematic diagram of an existing filter housing structure end cover;

[0025] Figure 3-4 This is a schematic structural diagram of the filter housing structure described in an embodiment of the utility model;

[0026] Figure 5-6 This is a schematic diagram of the structure of the plastic housing according to an embodiment of the utility model;

[0027] Figure 7-8 This is a schematic diagram of the structure of the end cover according to an embodiment of the utility model;

[0028] Figure 9-10 This is a schematic diagram of the structure of the power supply filter according to an embodiment of the utility model;

[0029] Figure 11-12 This is a schematic diagram of the installation of the wiring terminals described in the embodiment of the utility model.

[0030] In the figure, 1, plastic shell, 2, connecting piece, 3, first positioning piece, 4, end cover, 5, terminal mounting hole, 51, input terminal mounting hole, 52, output terminal mounting hole, 6, wiring terminal, 7, limit piece, 8, plug-in plastic shell. DETAILED DESCRIPTION

[0031] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that, without further description, elements, structures and features in one embodiment may also be beneficially combined in other embodiments.

[0032] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc., are used to distinguish different objects, rather than to describe a specific order, and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated.

[0033] See also Figure 3-8 The first embodiment of the utility model provides a filter housing structure, including:

[0034] A plastic housing 1, one end of which is closed and the other end is open;

[0035] The connecting member 2 is arranged at the center of the outer side of the closed end of the plastic housing 1 and is used to connect the mounting plate of the external device;

[0036] A positioning assembly, comprising a first positioning member 3 provided on the outside of the closed end of the plastic housing 1 and a second positioning member (not shown in the figure) provided on the mounting carrier, wherein the first positioning member 3 is located on one side of the connecting member 1, and the first positioning member 3 cooperates with the second positioning member to prevent the plastic housing 1 from rotating;

[0037] The end cover 4 is connected to the open end of the plastic housing 1 , and a terminal mounting hole 5 is provided on the end cover 4 for mounting a wiring terminal.

[0038] The filter housing structure is provided with a positioning component. Through the positioning function of the positioning component, the plastic housing will not rotate during use, and the connection with the external device mounting carrier will not rotate, so that the fixed position of the power filter is unified and the consistency of the power filter effect is ensured.

[0039] In some embodiments, the filter housing structure further includes a stopper 7 disposed on the outside of the bottom of the plastic housing 1, the stopper 7 is located on one side of the connector 2, and is spaced apart from the first positioning member 3, and the height of the stopper 7 is lower than the height of the connector 2, so as to limit the insulation distance between the filter and the mounting carrier. The stopper is disposed at the bottom of the plastic housing, and when the filter is installed, the stopper is used to maintain a gap between the filter and the mounting carrier of the external device, thereby increasing the insulation distance and achieving a shock absorbing effect.

[0040] In some embodiments, the stopper is configured as an arc structure, a ring structure, a polygonal structure, an elliptical structure, or a circular structure. It should be noted that the structure of the stopper is not limited to the above shapes, but can also be other shapes, as long as the height of the stopper is lower than the height of the connecting member.

[0041] In some embodiments, a plug-in plastic shell 8 is provided at the center of the outer side of the end cover 4, the input terminal mounting hole 51 is located inside the plug-in plastic shell 8, and the output terminal mounting hole 52 is located outside the plug-in plastic shell 8 and is provided at the outer edge of the end cover 4. The plug-in plastic shell is provided on the outer side of the end cover to separate the input and output areas, thereby achieving a foolproof effect.

[0042] In some embodiments, a plug-in plastic shell 8 is provided on one side of the outer side of the end cover 4, the input terminal mounting hole 51 is located inside the plug-in plastic shell 8, and the output terminal mounting hole 52 is located outside the plug-in plastic shell 8 and is provided on the other side of the outer side of the end cover 4. The plug-in plastic shell is provided on the outer side of the end cover to separate the input and output areas, thereby achieving a foolproof effect.

[0043] In some embodiments, a plug-in plastic shell 8 is provided at the center of the outer side of the end cover 4, the output terminal mounting hole 52 is located inside the plug-in plastic shell 8, and the input terminal mounting hole 51 is located outside the plug-in plastic shell 8 and is provided at the outer edge of the end cover 4. The plug-in plastic shell is provided on the outer side of the end cover to separate the input and output areas, thereby achieving a foolproof effect.

[0044] In some embodiments, a plug-in plastic shell 8 is provided on one side of the outer side of the end cover 4, the output terminal mounting hole 52 is located inside the plug-in plastic shell 8, and the input terminal mounting hole 51 is located outside the plug-in plastic shell 8 and is provided on the other side of the outer side of the end cover 4. The plug-in plastic shell is provided on the outer side of the end cover to separate the input and output areas, thereby achieving a foolproof effect.

[0045] In some embodiments, the end cap 4 is connected to the plastic housing 1 in a snap-on connection and fixed by epoxy resin. The snap-on connection facilitates filter installation and improves installation efficiency.

[0046] In some embodiments, the outer side of the end cap 4 is further provided with wiring marks, and the wiring marks include a live wire mark L, a neutral wire mark N, and a ground wire mark. Wiring is performed according to the wiring marks to prevent wiring errors, reduce the error rate, and improve installation efficiency.

[0047] The filter housing structure of the embodiment of the utility model improves the production efficiency of the product and ensures the consistency of the filter effect of the product in the whole machine through the structural design of the plastic housing and the end cover without affecting the overall assembly of the product.

[0048] See also Figure 9-12The second aspect of the utility model provides a power supply filter, including a filter housing structure, a wiring terminal 6, and components. The components are located in the filter housing structure, and the filter housing structure adopts the filter housing structure described in the first aspect of the utility model; the wiring terminal 5 passes through the end cover 4 and is connected to the component through a cable, and the component is welded to the inner side of the end cover 4.

[0049] The power filter in this embodiment improves the production efficiency of the product and ensures the consistency of the filter effect of the product in the whole machine by designing the filter housing structure without affecting the overall assembly of the product.

[0050] The above embodiments are used to explain the present invention rather than to limit the present invention. Any modifications and changes made to the present invention within the spirit of the present invention and the protection scope of the claims shall fall within the protection scope of the present invention.

Claims

1. A filter housing structure, characterized in that: include: A plastic shell, one end of which is closed and the other end is open; A connector, disposed at the center of the outer side of the closed end of the plastic housing, for connecting to a mounting plate of an external device; A positioning assembly, comprising a first positioning member disposed outside the closed end of the plastic housing and a second positioning member disposed on the mounting plate, wherein the first positioning member is located on one side of the connecting member, and the first positioning member cooperates with the second positioning member to prevent the plastic housing from rotating; The end cover is connected to the open end of the plastic shell and is provided with a terminal mounting hole for mounting a wiring terminal.

2. The filter housing structure according to claim 1, characterized in that: It also includes a limiter arranged on the outside of the bottom of the plastic shell. The limiter is located on one side of the connecting member and is spaced apart from the first positioning member. The height of the limiter is lower than the height of the connecting member to limit the insulation distance between the filter and the mounting carrier.

3. The filter housing structure according to claim 2, characterized in that: The limiting member is configured as an arc-shaped structure, or an annular structure, or a polygonal structure, or an elliptical structure, or a circular structure.

4. The filter housing structure according to claim 1, characterized in that: A plug-in plastic shell is arranged outside the end cover, the input terminal mounting hole is located inside the plug-in plastic shell, and the output terminal mounting hole is located outside the plug-in plastic shell.

5. The filter housing structure according to claim 4, characterized in that: The plug-in plastic shell is located at the center or one side of the outer side of the end cover; when the plug-in plastic shell is located at the center of the outer side of the end cover, the output terminal mounting hole is located at the edge of the outer side of the end cover; when the plug-in plastic shell is located on one side of the outer side of the end cover, the output terminal mounting hole is located on the other side of the outer side of the end cover.

6. The filter housing structure according to claim 1, characterized in that: A plug-in plastic shell is arranged outside the end cover, the output terminal mounting hole is located inside the plug-in plastic shell, and the input terminal mounting hole is located outside the plug-in plastic shell.

7. The filter housing structure according to claim 6, characterized in that: The plug-in plastic shell is located at the center or one side of the outer side of the end cover; when the plug-in plastic shell is located at the center of the outer side of the end cover, the input terminal mounting hole is located at the edge of the outer side of the end cover; when the plug-in plastic shell is located on one side of the outer side of the end cover, the input terminal mounting hole is located on the other side of the outer side of the end cover.

8. The filter housing structure according to claim 1, characterized in that: The end cover is connected to the plastic shell in a snap-on manner and is fixed by epoxy resin.

9. The filter housing structure according to claim 1, characterized in that: The outer side of the end cover is also provided with a wiring mark, and the wiring mark includes a live wire mark L, a neutral wire mark N and a ground wire mark.

10. A power filter, comprising a filter housing structure, wiring terminals, and components, wherein the components are located in the filter housing structure, characterized in that: The filter housing structure adopts the filter housing structure as claimed in any one of claims 1 to 9; the terminal passes through the end cover and is connected to the component through a cable, and the component is welded to the inner side of the end cover.

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