Filter

Abstract

The utility model relates to the technical field of electronics and signal processing, and discloses a filter. The filter comprises a main plastic shell base; the power taking copper bar is arranged on the main plastic shell base, is detachably connected with the main plastic shell base and is used for receiving input and output electrical signals; the magnetic core is fixedly arranged on the main plastic shell base, and the power taking copper bar is used for penetrating through the magnetic core; and the switching copper bar assembly is detachably connected to the main plastic shell base and is electrically connected with the power taking copper bar. The filter is compact in space structure and good in applicability.

Description

Technical Field

[0001] The utility model relates to the technical fields of electronics and signal processing, and particularly relates to a filter. Background Art

[0002] A filter is a frequency selection device that can be used to selectively pass or suppress signal components within a specific frequency range from an input signal. By utilizing this frequency selection function of the filter, interference noise can be filtered out or spectrum analysis can be performed. Filters play a crucial role in signal processing and communication systems, and they can improve signal quality, remove noise, extract useful information, etc. As a commonly used and indispensable component in new energy electric vehicles, filters play a very important role in the electric drive system.

[0003] Currently, the commonly used filter structure is an integrated connection of a power-taking copper bar and a plastic shell, which greatly restricts the replacement of copper bars on different voltage platforms and has drawbacks and lags in terms of cost and space layout. Summary of the Utility Model

[0004] An object of an embodiment of the utility model is to provide a filter, and the filter has a compact space structure and good applicability.

[0005] To achieve the above object, an embodiment of the utility model provides a filter, including:

[0006] A main plastic shell base;

[0007] A power-taking copper bar, which is arranged on the main plastic shell base and is detachably connected to the main plastic shell base, and is used for receiving input and output electrical signals;

[0008] A magnetic core, which is fixedly arranged on the main plastic shell base, and the power-taking copper bar is used to pass through the magnetic core;

[0009] A transfer copper bar assembly, which is detachably connected to the main plastic shell base and is electrically connected to the power-taking copper bar.

[0010] Optionally, the filter further includes two groups of capacitor module assemblies, which are arranged on the main plastic shell base and are detachably connected to the main plastic shell base, and the capacitor module assemblies are electrically connected to the power-taking copper bar.

[0011] Optionally, the capacitor module assembly includes:

[0012] A capacitor plastic shell base;

[0013] A first capacitor, which is arranged on the capacitor plastic shell base, and the number of the first capacitors is 2;

[0014] A second capacitor, which is arranged on the capacitor plastic shell base;

[0015] A filter board is disposed above the first capacitor and the second capacitor and is connected to the first capacitor and the second capacitor.

[0016] Optionally, the first capacitor is a Y capacitor and the second capacitor is an X capacitor.

[0017] Optionally, the adapter copper bar assembly includes:

[0018] An adapter plastic shell base, detachably connected to the main plastic shell base;

[0019] An adapter copper bar, disposed on the adapter plastic shell base.

[0020] Optionally, the magnetic core is a ferrite magnetic core.

[0021] Optionally, the filter further includes a fixing component for fixing the magnetic core, and the fixing component includes:

[0022] An insulating foam, disposed on the upper surface of the magnetic core;

[0023] A metal spring card, for passing through the insulating foam and connecting to the main plastic shell base.

[0024] Through the above technical solution, the filter provided by the present utility model adopts a detachable connection method between the power-taking copper bar and the main plastic shell base, and adds an adapter copper bar assembly detachably connected to the power-taking copper bar, so as to be applicable to different voltage requirements and meet different power-taking interface forms, achieving good versatility. At the same time, each component is tightly connected and the space structure is compact.

[0025] Other features and advantages of the embodiments of the present utility model will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings are used to provide a further understanding of the embodiments of the present utility model, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the embodiments of the present utility model, but do not constitute a limitation to the embodiments of the present utility model. In the drawings:

[0027] Figure 1 is a schematic diagram of a filter according to an embodiment of the present utility model;

[0028] Figure 2 is a detailed schematic diagram of the power-taking copper bar of the filter according to an embodiment of the present utility model;

[0029] Figure 3 is a schematic diagram of the capacitor module assembly of the filter according to an embodiment of the present utility model;

[0030] Figure 4 Exploded view of the capacitor module assembly of the filter according to an embodiment of the present utility model;

[0031] Figure 5 Exploded view of the adapter copper bus assembly of the filter according to an embodiment of the present utility model;

[0032] Figure 6 Electrical topology diagram of the filter according to an embodiment of the present utility model.

[0033] Description of reference numerals

[0034] 1. Main plastic housing base 2. Power-taking copper bus

[0035] 3. Magnetic core 4. Adapter copper bus assembly

[0036] 5. Capacitor module assembly 6. Insulating foam

[0037] 7. Metal spring card 41. Adapter plastic housing base

[0038] 42. Adapter copper bus 51. Capacitor plastic housing base

[0039] 52. First capacitor 53. Second capacitor

[0040] 54. Filter board Detailed implementation manners

[0041] The following will describe in detail the specific implementation manners of the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only for the purpose of illustration and explanation of the embodiments of the present utility model, and are not used to limit the embodiments of the present utility model.

[0042] In the embodiments of the present utility model, unless otherwise stated, the orientation words such as "upper, lower, top, bottom" are usually in the directions shown in the drawings or in the vertical, perpendicular or gravitational directions for describing the relative positional relationships of the components.

[0043] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of the technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0044] like Figure 1 FIG. 1 is a schematic diagram of a filter according to an embodiment of the present invention. Figure 1 The filter may include a main molded case base 1, a power copper busbar 2, a magnetic core 3, and a transfer copper busbar assembly 4. The power copper busbar 2 may be disposed on the main molded case base 1 and detachably connected to the main molded case base 1, and may be used to receive input and output electrical signals. Figure 2 The magnetic core 3 can be fixedly arranged on the main mold shell base 1, and the power copper bus 2 is used to pass through the magnetic core 3. The transfer copper bus assembly 4 can be detachably connected to the main mold shell base 1 and electrically connected to the power copper bus 2.

[0045] In order to store and release the charge, in one embodiment of the utility model, the filter may further include two groups of capacitor module components 5. The capacitor module component 5 may be arranged on the main mold shell base 1 and detachably connected to the main mold shell base 1, and the capacitor module component 5 is electrically connected to the power copper bus 2, and is used to store and release the charge, eliminate the electromagnetic interference between the internal power grid of the appliance and the external power grid, and suppress common mode interference.

[0046] In this embodiment, the specific form of the capacitor module assembly 5 can be various known to those skilled in the art. In a preferred example of the present invention, the capacitor module assembly 5 can include a capacitor plastic shell base 51, a first capacitor 52, a second capacitor 53 and a filter board 54, such as Figure 3 and Figure 4 As shown. The first capacitor 52 can be arranged on the capacitor plastic shell base 51, and the number of the first capacitors 52 is 2. The second capacitor 53 can be arranged on the capacitor plastic shell base 51. The filter plate 54 can be arranged on the first capacitor 52 and the second capacitor 53 and connected to the first capacitor 52 and the second capacitor 53.

[0047] In this embodiment, the models of the first capacitor 52 and the second capacitor 53 can be various types known to those skilled in the art. In a preferred example of the present invention, the first capacitor 52 can be a Y capacitor, which can be used to eliminate common-mode interference, and the second capacitor 53 can be an X capacitor, which can be used to eliminate differential-mode interference.

[0048] In this embodiment, the specific form of the transfer copper bar assembly 4 can be various known to those skilled in the art. In a preferred example of the present invention, the transfer copper bar assembly 4 can include a transfer plastic shell base 41 and a transfer copper bar 42, such as Figure 5 The transfer molded case base 41 can be detachably connected to the main molded case base 1 , and the transfer copper bus 42 can be arranged on the transfer molded case base 41 .

[0049] In this embodiment, there are various types of the magnetic core 3 known to those skilled in the art. Considering that the ferrite magnetic core 3 has high permeability, good temperature characteristics, a wide temperature application range, low attenuation rate and other excellent characteristics. In a preferred example of the present utility model, the magnetic core 3 can be a ferrite magnetic core 3.

[0050] In order to further fix the magnetic core 3, in an embodiment of the present utility model, the filter may further include a fixing component for secondarily fixing the magnetic core 3. The fixing component may include an insulating foam 6 and a metal spring card 7. Among them, the insulating foam 6 may be disposed on the upper surface of the magnetic core 3, and the metal spring card 7 may be used to pass through the insulating foam 6 and connect to the main plastic shell base 1.

[0051] The electrical topology diagram of the filter provided by the present utility model is as Figure 6 shown.

[0052] Through the above technical solutions, the filter provided by the present utility model adopts a detachable connection method between the power-taking copper bar and the main plastic shell base, and adds a transfer copper bar assembly detachably connected to the power-taking copper bar, so that it can be applicable to different voltage requirements and meet different power-taking interface forms, achieving good versatility. At the same time, each component is tightly connected and the space structure is compact.

[0053] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, commodity or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, commodity or device including the element.

[0054] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A filter, characterized in that: The filter comprises: Main plastic shell base; A power copper busbar, which is disposed on the main mold shell base and is detachably connected to the main mold shell base and is used to receive input and output electrical signals; A magnetic core is fixedly arranged on the main plastic shell base, and the power copper busbar is used to pass through the magnetic core; The transfer copper busbar assembly is detachably connected to the main plastic shell base and is electrically connected to the power copper busbar.

2. The filter according to claim 1, characterized in that The filter further comprises two groups of capacitor module components, which are arranged on the main plastic shell base and detachably connected to the main plastic shell base, and the capacitor module components are electrically connected to the power copper busbar.

3. The filter according to claim 2, characterized in that The capacitor module assembly comprises: Capacitor plastic case base; A first capacitor is disposed on the capacitor plastic shell base, and the number of the first capacitors is 2; A second capacitor is disposed on the capacitor plastic shell base; The filter plate is disposed above the first capacitor and the second capacitor and connected to the first capacitor and the second capacitor.

4. The filter according to claim 3, characterized in that The first capacitor is a Y capacitor, and the second capacitor is an X capacitor.

5. The filter according to claim 1, characterized in that The transfer copper busbar assembly comprises: An adapter plastic shell base, detachably connected to the main plastic shell base; The transfer copper bus is arranged on the transfer plastic shell base.

6. The filter according to claim 1, characterized in that The magnetic core is a ferrite core.

7. The filter according to claim 1, characterized in that The filter further comprises a fixing component for fixing the magnetic core, and the fixing component comprises: Insulating foam, arranged on the upper surface of the magnetic core; A metal spring card is used to pass through the insulating foam and connect to the main plastic shell base.

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