Filtering module and filter

Abstract

The utility model discloses a filtering module and a filter, and relates to the technical field of filters, the filtering module comprises a magnetic core, two copper bars and a filtering capacitor, the magnetic core is provided with two magnetic ring holes; the two copper bars are arranged corresponding to the two magnetic ring holes respectively, and each copper bar comprises a connecting part, and a first bending part and a second bending part which are arranged at the two ends of the connecting part respectively; the connecting part is arranged in the magnetic ring hole in a penetrating manner; the first bending part and the second bending part are oppositely arranged and are respectively used for realizing electrical connection with an external load and a power supply; and the filter capacitor is electrically connected with the two copper bars. The utility model aims to provide the double-copper-bar filtering module which is small in size and convenient to install.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter equipment technical field, especially filter module and filter. BACKGROUND

[0002] Filter is a kind of electronic equipment, mainly used in signal processing field, and its core function is to extract or suppress specific frequency components from composite signal.In power system, filter is used to reduce or eliminate electromagnetic interference generated by electrical equipment, so as to improve the stability and reliability of system.Filter can be realized by various technologies, including but not limited to the combination of passive elements such as capacitor, inductor and resistor, and amplifier and feedback network in active filter.

[0003] In existing design, copper bar filter module mainly focuses on the electromagnetic compatibility of positive copper bar, but in order to maintain the overall performance of system, negative copper bar must also reach the same electromagnetic compatibility standard as positive copper bar.For this purpose, additional filtering treatment needs to be carried out on negative copper bar.This is usually realized by installing corresponding filter on negative copper bar to ensure that the electromagnetic interference of negative is effectively controlled, so as to match with positive copper bar, and maintain the electromagnetic compatibility of system together.

[0004] However, the existing filter module with positive copper bar and negative copper bar adopts straight line type arrangement installation mode and has complex structure, and this design often needs larger space during installation, which causes inconvenience in installation for space limited application scene. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a kind of filter module and filter, to provide a kind of small volume and easy-to-install double copper bar filter module.

[0006] To achieve the above purpose, the utility model provides a kind of filter module, comprising:

[0007] Magnetic core, the magnetic core is provided with two magnetic ring holes;

[0008] Two copper bars, two copper bars are respectively arranged in two magnetic ring holes, each copper bar includes connecting part and first bending part and second bending part respectively arranged at both ends of connecting part;Connecting part is arranged in magnetic ring hole;First bending part and second bending part are oppositely arranged, and are respectively used to realize electrical connection with external load and power supply;And

[0009] Filter capacitor, filter capacitor is electrically connected with two copper bars.

[0010] In an embodiment, the first bending part is formed with a connecting section and a mounting section arranged at an angle with the connecting section; the connecting section is connected with the connecting part; and the mounting section is arranged at a distance from the connecting part.

[0011] The copper bar further comprises a first electrical connecting member, one end of which is arranged at the mounting section, and the other end of which is electrically connected with the power supply.

[0012] In an embodiment, the mounting section is formed with a first riveting hole, and the first electrical connecting member is a first stud which is inserted into the riveting hole and extends towards the connecting part.

[0013] In an embodiment, the first bending part further comprises a first return section connecting the connecting part and the connecting section; and / or

[0014] The first bending part further comprises a second return section connecting the connecting section and the mounting section.

[0015] In an embodiment, the filter module further comprises an injection molding member which is wrapped outside the two copper bars.

[0016] In an embodiment, the copper bar further comprises a second electrical connecting member, one end of which is arranged at the second bending part, and the other end of which extends towards the first bending part and is electrically connected with external load.

[0017] The injection molding member is further wrapped outside the second electrical connecting member.

[0018] In an embodiment, the injection molding member is formed with a positioning hole, and the filter module further comprises a positioning pin which is inserted into the positioning hole and is locked on a machine shell; and / or

[0019] The injection molding member is formed with a buckle structure for connecting with the machine shell.

[0020] In an embodiment, the filter capacitor comprises a circuit board and a capacitor arranged on the circuit board, and the circuit board is arranged close to a side of the connecting part which is away from the first bending part and is electrically connected with the connecting part.

[0021] In an embodiment, a through hole is formed on a side of the connecting part which is away from the circuit board, and the connecting assembly further comprises a third electrical connecting member which is arranged through the through hole and is locked on the circuit board.

[0022] The utility model further provides a filter which comprises the filter module as described above.

[0023] The filter module provided by this utility model designs the copper busbar as a connecting part and a first and second bending part located at both ends of the connecting part. Because the bending structure allows for more flexible arrangement of components in three-dimensional space, the copper busbar enables the filter module to be compactly installed in a smaller space, reducing the need for linear space. Furthermore, designing the positive and negative copper busbars with the same structure and connecting them to the external load and power supply respectively via electrical connectors not only saves mold costs and reduces installation steps but also ensures consistent electromagnetic characteristics of the positive and negative copper busbars. The filter capacitor is electrically connected to both copper busbars, enabling simultaneous filtering of both positive and negative copper busbars, thereby effectively controlling electromagnetic interference and achieving electromagnetic compatibility matching. This utility model's filter module simplifies the module structure. The magnetic ring hole on the magnetic core and the bending design of the copper busbar make the filter module more flexible and convenient to install. The electrical connector is located at the end of the bending part, facilitating connection to external devices and reducing the technical difficulty and space requirements during installation. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Fig. 1 This is a schematic diagram of the structure of the first embodiment of the filter module provided by this utility model;

[0026] Fig. 2 This is a schematic diagram of the structure of the second embodiment of the filter module provided by this utility model;

[0027] Fig. 3 This is a structural schematic diagram of the third embodiment of the filter module provided by this utility model.

[0028] Explanation of icon numbers:

[0029] 100. Filter module; 1. Magnetic core; 11. Magnetic ring hole; 2. Copper busbar; 21. Connecting part; 22. First bend; 221. Connecting section; 222. Mounting section; 2221. First rivet hole; 223. First return bend; 224. Second return bend; 23. Second bend; 3. Filter capacitor; 4. First electrical connector; 5. Second electrical connector; 6. Injection molded part.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0033] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0034] The application provides a filter module 1000.

[0035] Please refer to Figs. 1 to 3 In an embodiment of the present application, the filter module 1000 comprises a magnetic core 1, two copper bars 2 and a filter capacitor 3, the magnetic core 1 is provided with two magnetic ring holes 11; the two copper bars 2 are respectively arranged corresponding to the two magnetic ring holes 11, each copper bar 2 comprises a connecting part 21 and a first bending part 22 and a second bending part 23 respectively arranged at two ends of the connecting part 21; the connecting part 21 is arranged in the magnetic ring hole 11; the first bending part 22 and the second bending part 23 are oppositely arranged and are respectively used for realizing electrical connection with an external load and a power supply; the filter capacitor 3 is electrically connected with the two copper bars 2.

[0036] The filter module 1000 provided by the utility model can be compactly installed in a smaller space, and the demand for linear space is reduced. In addition, the positive copper bar 2 and the negative copper bar 2 are designed as the same structure, and are connected with an external load and a power supply through the electrical connecting piece respectively, so that the mold cost is saved and the installation process is reduced, and the electromagnetic characteristics of the positive and negative copper bars 2 are ensured to be consistent. The filter capacitor is electrically connected with the two copper bars 2, so that the positive and negative copper bars 2 can be simultaneously filtered, thereby effectively controlling electromagnetic interference and achieving electromagnetic compatibility matching. The filter module 1000 simplifies the module structure, and through the magnetic ring hole 11 on the magnetic core 1 and the bending design of the copper bar 2, the filter module 1000 is more flexible and convenient during installation. The electrical connecting piece is located at the end of the bending part, which is convenient for connecting with external equipment, and reduces the technical difficulty and space requirement required during installation.

[0037] In an embodiment of the present application, the first bending part 22 is formed with a connecting section 221 and a mounting section 222 arranged at an angle with the connecting section 221; the connecting section 221 is connected with the connecting part 21; the mounting section 222 is arranged at intervals with the connecting part 21; the copper bar 2 further comprises a first electrical connecting piece 4, one end of the first electrical connecting piece 4 is arranged at the mounting section 222, and the other end of the first electrical connecting piece 4 is electrically connected with the power supply. The mounting section 222 is arranged at an angle with the connecting section 221, which can provide flexibility in space, so that the electrical connecting piece can be more conveniently connected with other electrical components, especially in the case of limited space. In addition, the mounting section 222 is arranged at intervals with the connecting part 21, which helps to reduce electrical interference and improve electromagnetic compatibility, and also facilitates the management and arrangement of cables. It should be noted that the first bending part 22 of the copper bar 2 forms the connecting section 221 and the mounting section 222 through a bending process, so as to ensure that the angle and shape of the bending meet the design requirements, and one end of the first electrical connecting piece 4 is fixed on the mounting section 222, which can be realized by riveting, welding or other fixing methods. The first electrical connecting piece 4 is usually a connecting piece made of metal or other conductive materials, such as bolts or screws for electrical connection. Of course, the first electrical connecting piece 4 can be provided with multiple electrical connecting pieces, and the setting of multiple electrical connecting pieces can improve the reliability and flexibility of the filter module 1000.

[0038] In an embodiment of the present application, the mounting section 222 is provided with a first riveting hole 2221, the first electrical connecting member 4 is a first stud, the first stud is inserted into the riveting hole, and the first stud extends towards the connecting section 21. By providing the riveting hole in the mounting section 222 and inserting the first stud, the copper bar 2 and the first electrical connecting member 4 can be firmly fixed and electrically connected. In addition, the first stud is fixed in the riveting hole by the riveting process, which is quick and reliable and suitable for automatic production.

[0039] In an embodiment of the present application, the first bending section 22 further includes a first return section 223 connecting the connecting section 21 and the connecting section 221. The first return section 223 serves as a transition between the connecting section 21 and the connecting section 221, can smoothly guide the copper bar 2 to turn from the main body section to the mounting section 222, reduce stress concentration, and improve the overall strength of the structure. By designing the first return section 223, the installation space requirement can be better met, and the layout of the copper bar 2 can be more flexible, especially in the case of limited space. In another embodiment of the present application, the first bending section 22 further includes a second return section 224 connecting the connecting section 221 and the mounting section 222, and the second return section 224 has basically the same effect as the first return section 223. Of course, in other embodiments, the first return section 223 and the second return section 224 can be provided at the same time.

[0040] In an embodiment of the present application, the filter module 1000 further includes an injection molding part 6 wrapped outside the two copper bars 2. The injection molding part 6 is usually made of thermoplastic or thermosetting plastic with good insulation performance, such as polycarbonate (PC), polyamide (PA), or polyurethane (PUR), etc. The shape of the injection molding part 6 usually matches the outer shape of the copper bar 2, and sometimes includes structural features for fixing the copper bar 2, such as buckles, bosses, etc. or card slots for mounting the copper bar 2, etc. It can prevent the copper bar 2 from shifting due to vibration and other reasons. In addition, the injection molding part 6 can provide electrical insulation to prevent the copper bar 2 from contacting the case and avoid short circuit.

[0041] In an embodiment of the present application, the copper bar 2 further includes a second electrical connecting member 5, one end of the second electrical connecting member 5 is arranged at the second bending section 23, the other end of the second electrical connecting member 5 extends towards the first bending section 22 and is electrically connected with external loads, and the injection molding part 6 is wrapped outside the second electrical connecting member 5. The main function of the second electrical connecting member 5 is to establish electrical connection with external loads. Wrapping the injection molding part 6 outside the second electrical connecting member 5 not only can provide insulation protection to prevent the second electrical connecting member 5 from contacting other conductive parts and avoid short circuit, but also can increase the mechanical stability of the second electrical connecting member 5 to prevent the connecting member from loosening due to vibration and other reasons, and protect the second electrical connecting member 5 from the influence of external environment such as moisture, dust, chemicals, etc.

[0042] In an embodiment of the present application, the injection molding part 6 is provided with a positioning hole, and the filter module 1000 further comprises a positioning pin, which is inserted into the positioning hole and locked to the cabinet, and the positioning pin is inserted into the positioning hole of the injection molding part 6 and cooperates with the corresponding hole or slot on the cabinet, so as to fix the position of the filter module 1000 in the cabinet, and the positioning hole and the positioning pin are arranged in a manner that can prevent the filter module 1000 from moving relatively in the cabinet due to vibration and the like, and maintain the stability and reliability of the electrical connection. In another embodiment of the present application, the injection molding part 6 is provided with a buckle structure for connecting with the cabinet, and the buckle structure generally comprises a protruding part (buckle claw) and a groove or hole (buckle slot), which can cooperate with each other to form a locking mechanism to fix the injection molding part 6 and the filter module 1000 on the cabinet. Of course, in other embodiments, the positioning structure formed by the positioning hole and the positioning pin and the buckle structure can be arranged on the injection molding part 6 at the same time, and by directly forming the positioning hole or the buckle structure on the injection molding part 6, the assembly process can be simplified, and additional parts are not required to complete the positioning and fixing, and the simultaneous arrangement of the positioning structure and the buckle structure can further realize the accurate installation and stable fixation of the filter module 1000, and at the same time, provide convenient disassembly and maintenance functions, ensure the safe operation of the electrical components, and facilitate maintenance and replacement.

[0043] In an embodiment of the present application, the filter capacitor comprises a circuit board and a capacitor arranged on the circuit board, and the circuit board is close to the side of the connecting part 21 away from the first bending part 22 and is electrically connected with the connecting part 21. The circuit board is the core component of the filter capacitor, and is usually made of multiple layers of insulating material and has a conductive path and a connection point. The circuit board is provided with a capacitor, and the capacitor is used for storing electric charge and generating impedance to filter out specific frequency components in the circuit, thereby realizing the filtering function.

[0044] In an embodiment of the present application, the side of the connecting part 21 away from the circuit board is provided with a through hole, and the connecting assembly further comprises a third electrical connecting piece, which is inserted through the through hole and locked to the circuit board. The third electrical connecting piece is usually a connecting piece made of metal or other conductive material, one end of which is inserted through the through hole of the connecting part 21, and the other end is locked to the circuit board to establish a stable electrical connection. For example, the third electrical connecting piece can be an electrical bolt or screw.

[0045] The utility model further provides a kind of filter, and the filter includes filter module 1000, and the specific structure of filter module 1000 refers to above-mentioned embodiment, since the filter of the present application adopts all technical solutions of above-mentioned all embodiments, at least has all beneficial effects brought by the technical solutions of above-mentioned embodiments, which will not be repeated here.

[0046] The above merely describes preferred embodiments of the present application, and is not intended to limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the inventive concept of the present application, as described in the present application specification and drawings, is included in the patent protection scope of the present application.

Claims

1. A filtering module, characterized in that, The filtering module includes: The magnetic core has two magnetic ring holes. Two copper busbars are respectively disposed corresponding to two magnetic ring holes. Each copper busbar includes a connecting portion and a first bent portion and a second bent portion respectively disposed at both ends of the connecting portion. The connecting portion passes through the magnetic ring hole. The first bent portion and the second bent portion are disposed opposite to each other and are used to achieve electrical connection with an external load and a power supply, respectively. A filter capacitor, which is electrically connected to the two copper busbars.

2. The filtering module as described in claim 1, characterized in that, The first bending portion has a connecting section and an installation section that is angled to the connecting section; the connecting section is connected to the connecting portion; the installation section is spaced apart from the connecting portion; The copper busbar also includes a first electrical connector, one end of which is located at the mounting section, and the other end of which is electrically connected to the power supply.

3. The filtering module as described in claim 2, characterized in that, The mounting section has a first riveting hole, and the first electrical connector is a first stud. The first stud is inserted into the riveting hole and extends toward the connecting part.

4. The filtering module as described in claim 2, characterized in that, The first bending portion further includes a first back bend connecting the connecting portion and the connecting segment; and / or The first bending section also includes a second bend section connecting the connecting section and the mounting section.

5. The filtering module as described in claim 1, characterized in that, The filter module also includes an injection-molded component that wraps around the outside of the two copper busbars.

6. The filtering module as described in claim 5, characterized in that, The copper busbar also includes a second electrical connector, one end of which is located at the second bend, and the other end of which extends toward the first bend and is electrically connected to an external load. The injection-molded part is also wrapped around the outside of the second electrical connector.

7. The filtering module as described in claim 5, characterized in that, The injection-molded part has a positioning hole, and the filter module further includes a positioning pin, which is inserted into the positioning hole and used to lock onto the housing; and / or The injection molded part is provided with a snap-fit ​​structure for connecting to the housing.

8. The filtering module as described in claim 1, characterized in that, The filter capacitor includes a circuit board and a capacitor disposed on the circuit board. The circuit board is located on the side of the connecting portion away from the first bend and is electrically connected to the connecting portion.

9. The filtering module as described in claim 8, characterized in that, The connecting part has a through hole on the side opposite to the circuit board. The connecting assembly also includes a third electrical connector, which passes through the through hole and is locked onto the circuit board.

10. A filter, characterized in that, Includes the filter module as described in any one of claims 1 to 9.

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