CN217470670U

CN217470670U - Filtering equipment and vehicle with same

Info

Publication number: CN217470670U
Application number: CN202221409228.2U
Authority: CN
Inventors: 沈捷
Original assignee: Leadrive Technology Shanghai Co Ltd
Current assignee: Leadrive Technology Shanghai Co Ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-09-20
Anticipated expiration: 2032-06-07

Abstract

The utility model provides a filtering device and a vehicle with the filtering device, wherein the filtering device comprises a bracket which forms a holding space and comprises a first holding cavity and a second holding cavity; the first capacitor is fixedly arranged in the first accommodating cavity; the second capacitor is fixedly arranged in the second accommodating cavity; the positive copper bar, the negative copper bar and the grounding copper bar are arranged in the bracket; one of the first capacitors comprises a first welding leg and a second welding leg, the first welding leg is electrically connected to the positive copper bar, and the second welding leg is electrically connected to the grounding copper bar; the other end of the first capacitor comprises a third welding leg and a fourth welding leg, the third welding leg is electrically connected to the negative copper bar, and the second welding leg is electrically connected to the grounding copper bar; the second capacitor comprises a fifth welding leg and a sixth welding leg, the fifth welding leg is electrically connected to the positive copper bar, and the sixth welding leg is electrically connected to the negative copper bar. After the technical scheme is adopted, the filter has the advantages of high integration density, simple process, simplified manufacture, reduced cost, improved filtering performance and the like.

Description

Filtering equipment and vehicle with same

Technical Field

The utility model relates to a vehicle equipment field especially relates to a filtering equipment and have vehicle of this filtering equipment.

Background

An automotive motor controller is a typical electronic device on which key electronic components such as a connection harness, a PCB, a power module, and a capacitor module are laid out. In order to solve the EMC problem of the controller, filter devices such as a magnetic ring, a magnetic buckle, an X capacitor and a Y capacitor are added at a direct current end and a three-phase end, and a filter module, a shielding cover, a grounding design and other measures are added on a PCB. In order to meet the high-demand EMC design criteria, a general design idea is to arrange as many filter devices as possible for the components that need to add EMC measures, such as integrated filter equipment.

The traditional layout of the filter device generally considers a transverse layout or a longitudinal layout mode, and the interior of the controller does not have enough layout space, so that the structural design of the filter device is not targeted, and the space occupation is high.

Therefore, a novel filtering device is needed, which can effectively reduce material cost, reduce molding difficulty and simplify structure, and meanwhile, the pins of the capacitor can realize minimum distance connection of the copper bar and grounding, thereby effectively reducing the loop impurity sense and improving the high overall filtering effect.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical defect, the utility model aims to provide a filtering equipment and have vehicle of this filtering equipment has integrated density height, simple process, simplifies manufacturing, reduce cost, improves advantages such as filtering performance.

The utility model discloses a filtering equipment, filtering equipment includes:

the support forms an accommodating space which comprises at least one semi-open first accommodating cavity and one semi-open second accommodating cavity;

each first capacitor is fixedly arranged in a first accommodating cavity;

the second capacitor is fixedly arranged in the other second accommodating cavity;

the positive copper bar is fixedly arranged in the bracket along the length direction of the bracket;

the negative copper bar is fixedly arranged in the bracket along the length direction of the bracket;

the grounding copper bar is fixedly arranged in the bracket along the length direction of the bracket and is arranged between the positive copper bar and the negative copper bar;

one of the first capacitors comprises a first welding leg and a second welding leg, the first welding leg is electrically connected to the positive copper bar, and the second welding leg is electrically connected to the grounding copper bar;

the other end of the first capacitor comprises a third welding leg and a fourth welding leg, the third welding leg is electrically connected to the negative copper bar, and the second welding leg is electrically connected to the grounding copper bar;

the second capacitor comprises a fifth welding leg and a sixth welding leg, the fifth welding leg is electrically connected to the positive copper bar, and the sixth welding leg is electrically connected to the negative copper bar.

Preferably, the bracket comprises a mounting end face and a placing end face, the mounting end face is opposite to the placing end face, and the accommodating space is arranged on the mounting end face;

the placing end face is provided with a first through hole, a second through hole, a third through hole and a fourth through hole;

the first through hole is formed in the bottom surface of the first accommodating cavity and is overlapped with the positive copper bar, and the first welding leg penetrates into the first through hole;

the second through hole is formed in the bottom surface of the first accommodating cavity and is overlapped with the negative copper bar, and the third welding leg penetrates through the second through hole.

Preferably, the third through hole is formed in the bottom surface of the second accommodating cavity and is overlapped with the positive copper bar, and the fifth welding leg penetrates through the third through hole;

the fourth through hole is formed in the bottom surface of the second accommodating cavity and is overlapped with the negative copper bar, and the sixth welding leg penetrates through the fourth through hole.

Preferably, a fifth through hole and a sixth through hole are further formed in the middle of the placing end face in the length direction;

the fifth through hole is formed in the bottom surface of the first accommodating cavity and is overlapped with the grounding copper bar, and the second welding leg penetrates through the fifth through hole;

the sixth through hole is formed in the bottom surface of the other first accommodating cavity and is overlapped with the grounding copper bar, and the fourth solder leg penetrates into the sixth through hole.

Preferably, the placing end face provided with the fifth through hole and the sixth through hole is provided with a groove, and the extending direction of the groove is along the length direction of the placing end face.

Preferably, the positive copper bar is parallel to the negative copper bar;

the adjacent first accommodating cavities have an inclination angle along the length direction of the bracket and are parallel to each other.

Preferably, the first accommodating cavity is partially exposed in the projection direction of the bracket;

the second accommodating cavity is vertical to the length direction of the bracket.

Preferably, the sidewalls of the first receiving chamber and the second receiving chamber overlap each other.

The utility model also discloses a vehicle, include as above the filtering equipment.

After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects:

1. the integration scheme of the capacitor and the copper bar has a more compact structure and high space utilization rate;

2. the structure of the copper bar is simplified, the die is correspondingly simple, the material quantity is reduced, and the overall cost is reduced;

3. the mounting process is simplified, pins are not required to be bent, and the shell is positioned in a self-guiding manner;

4. the capacitor pins are connected with the copper bars and the grounding in the shortest distance, and the filtering effect is improved.

Drawings

Fig. 1 is a schematic structural diagram of a filtering apparatus according to a preferred embodiment of the present invention;

fig. 2 is a schematic back view of a filter device according to a preferred embodiment of the present invention.

Reference numerals are as follows:

100-bracket, 110-first accommodating cavity, 120-second accommodating cavity;

210-a first capacitance, 220-a second capacitance;

310-positive copper bar, 320-negative copper bar and 330-grounding copper bar;

410-first via, 420-second via, 430-third via, 440-fourth via, 450-fifth via, 460-sixth via.

Detailed Description

The advantages of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the following description, suffixes such as "module", "part", or "unit" used to indicate elements are used only for the convenience of description of the present invention, and have no specific meaning in itself. Thus, "module" and "component" may be used in a mixture.

Referring to fig. 1 and 2, there is shown a structure of a filtering apparatus according to a preferred embodiment of the present invention, in which the filtering apparatus includes:

-a support 100

In order to place each DC filter capacitor in the filter device, a support 100 is provided, and other electrical components in the filter device are all placed in the support 100, so the support 100 is formed with an accommodating space, which is specifically composed of at least one first accommodating cavity 110 and one second accommodating cavity 120, and each of the first accommodating cavity 110 and the second accommodating cavity 120 is semi-open, that is, the first accommodating cavity 110 and the second accommodating cavity 120 are in contact with the support 100 and are sealed by the support 100, so as to form bottom surfaces of the first accommodating cavity 110 and the second accommodating cavity 120, and after the side walls of the first accommodating cavity 110 and the second accommodating cavity 120 extend in a direction away from the support 100, the side walls are not sealed at free ends, so the accommodating space is communicated with an external space and can be used for placing capacitors.

First capacitance 210

The first capacitor 210 may be a Y capacitor, which is typically a thin film type capacitor, and is generally paired, mostly in the form of an oblate, with a blue color (or with a plastic square housing with resin encapsulated inside) to suppress common mode interference, and the capacity of the Y capacitor is nF. The Y capacitance cannot be very large due to the restriction of the leakage current. The number of Y capacitors may be one or more, and the Y capacitors are fixedly installed in the first receiving cavity 110, so that the size of the Y capacitors may be the same as the cavity size of the first receiving cavity 110 (either clearance fit, tight fit, or interference fit is acceptable).

A second capacitor 220

The second capacitor 220 may be an X capacitor. The full name of the X capacitor is as follows: x2(X1/X3/MKP) capacitor for suppressing power supply electromagnetic interference. The main roles in the circuit are: and the power supply overline circuit, the EMI filtering circuit, the spark eliminating circuit and the like ensure that the finished product of the electronic product meets the EMC requirement. The X capacitor is fixed in the second receiving cavity 120, so the size of the X capacitor can be the same as the cavity size of the second receiving cavity 120 (either clearance fit, tight fit or interference fit is acceptable).

-positive copper bar 310

The positive copper bar 310 is fixedly installed inside (electrically isolated from the outside) the bracket 100 along the length direction thereof.

-negative copper bar 320

The negative copper bar 320 is fixedly installed inside (electrically isolated from the outside) the bracket 100 along the length direction thereof. The positive and negative copper bars 320 may filter signals introduced into the motor controller.

-ground copper bar 330

For the first capacitor 210 and the second capacitor 220, the types of copper bars needed to be electrically connected to the pins are different, and therefore, a grounding copper bar 330 is also arranged in the bracket 100, and is also isolated inside the bracket 100, between the positive copper bar 310 and the negative copper bar 320, and isolated from the positive copper bar 310 and the negative copper bar 320, and is not in contact with the positive copper bar 310 and the negative copper bar 320.

In order to compactly mount the first capacitor 210 and the second capacitor 220 on the bracket 100, one or more of the first capacitors 210 include a first solder tail and a second solder tail, which are electrically connected to the positive copper bar 310 and the ground copper bar 330, respectively, i.e. such a first capacitor 210 filters EMC on the positive copper bar 310. The remaining first capacitor or capacitors 210 include a third solder tail and a fourth solder tail electrically connected to the negative copper bar 320 and the ground copper bar 330, respectively, i.e. such first capacitors 210 filter the EMC on the negative copper bar 320. It will be appreciated that the two types of first capacitors 210 are in close proximity to each other to save space.

On the other hand, the second capacitor 220 includes a fifth solder tail and a sixth solder tail, and is electrically connected to the positive copper bar 310 and the negative copper bar 320, respectively. And the second capacitor 220 may be as close as possible to the first capacitor 210. Since the first capacitor 210 and the second capacitor 220 are isolated by the first receiving chamber 110 and the second receiving chamber 120, the first capacitor 210 and the second capacitor 220 will not be affected by each other.

With the above configuration, the first accommodating cavity 110 and the second accommodating cavity 120 are both located on one side of the bracket 100, and all the solder fillets extend towards the other side, so that the solder fillets are not required to be bent, and the total cost is reduced while the material is reduced.

In a preferred embodiment, the bracket 100 includes a mounting end surface and a placing end surface, which are respectively located at both sides of the bracket 100 such that the mounting end surface and the placing end surface are opposite to each other. The accommodating space is arranged on the mounting end face. A first through hole 410, a second through hole 420, a third through hole 430 and a fourth through hole 440 are formed on the placing end surface, i.e., the back surface of the bracket 100. Specifically, when the positive copper bar 310 passes through the bracket 100, the positive copper bar and the first accommodating cavity 110 are partially overlapped in the projection direction of the bracket 100, and the first through hole 410 is formed in the overlapped part, in other words, any element passing through the first through hole 410 can be connected with the positive copper bar 310, so that the first solder pin can be electrically connected with the positive copper bar 310 after passing through the first through hole 410, and the penetrating direction of the first solder pin can be led out from the first capacitor 210 and directly penetrates without bending; when the negative copper bar 320 passes through the bracket 100, the negative copper bar and the first accommodating cavity 110 are partially overlapped in the projection direction of the bracket 100, and the second through hole 420 is formed in the overlapped portion, in other words, any element passing through the second through hole 420 can be connected with the negative copper bar 320, so that after the third solder pin penetrates through the second through hole 420, the third solder pin can be electrically connected with the negative copper bar 320, and the penetrating direction of the third solder pin can be led out from the first capacitor 210 (different from the previous first capacitor 210) and directly penetrates without bending. When first leg and third leg no longer buckled, first leg and third leg are connected with the copper bar through shortest path, help improving the filtering effect.

Further, when the positive copper bar 310 and the negative copper bar 320 pass through the bracket 100, they are partially overlapped with the second accommodating cavity 120 in the projection direction of the bracket 100 itself (the overlapped portion has 2 places, which are formed by the positive copper bar 310 and the negative copper bar 320, respectively), and the overlapped portion is opened with the third through hole 430 and the fourth through hole 440, in other words, any component passing through the third through hole 430 and the fourth through hole 440 can be connected with the positive copper bar 310 and the negative copper bar 320, therefore, after the fifth solder pin passes through the third through hole 430, it can be electrically connected with the positive copper bar 310, and the penetration direction of the fifth solder pin can be led out from the second capacitor 220 and directly penetrated without bending, after the sixth solder pin penetrates through the fourth through hole 440, it can be electrically connected with the negative copper bar 320, and the penetration direction of the sixth solder pin can be led out from the second capacitor 220 without bending, and directly penetrating.

Furthermore, a fifth through hole 450 and a sixth through hole 460 are further disposed on the placing end surface along the length direction, and are respectively located on the bottom surfaces of two adjacent first accommodating cavities 110 and have a portion overlapping with the ground copper bar 330, and the second solder foot and the fourth solder foot respectively penetrate through the fifth through hole 450 and the sixth through hole 460. That is, after the first capacitor 210 is placed in the first receiving cavity 110, the solder foot can pass through the first through hole 410 and the fifth through hole 450 respectively to connect with the positive copper bar 310 and the ground copper bar 330 respectively, or the solder foot can pass through the second through hole 420 and the sixth through hole 460 to connect with the negative copper bar 320 and the ground copper bar 330 respectively. On the other hand, the solder leg of the second capacitor 220 is connected with the positive copper bar 310 and the negative copper bar 320 after passing through the third through hole 430 and the fourth through hole 440, so that the space utilization rate of the filter device is higher due to the compact arrangement.

In a preferred embodiment, the placing end surface provided with the fifth through hole 450 and the sixth through hole 460 is provided with a groove, the extending direction of the groove is along the length direction of the placing end surface, and even if the solder leg is too long, the solder leg does not penetrate through the bracket 100, so that the function of electrical protection is achieved.

In order to further optimize the arrangement of devices on the bracket 100, in a preferred embodiment, the positive copper bar 310 and the negative copper bar 320 are parallel to each other, and the adjacent first accommodating cavities 110 have an inclination angle along the length direction of the bracket 100 and are parallel to each other, the inclination angle may be 0-60 °, and when the inclination angle is 0 °, the solder legs of the first capacitors 210 may be led out from the diagonal direction, so as to achieve the connection effect with the positive copper bar 310 (negative copper bar 320) and the ground copper bar 330, respectively. Preferably, the inclination angle may be 45 ° to save space.

Further, the first receiving cavity 110 is partially exposed in the projection direction of the bracket 100 after the inclination angle is not 0 °, so that a balanced space occupation arrangement is achieved regardless of the length direction or the width direction of the bracket 100. The second receiving cavity 120 is perpendicular to the direction of the bracket 100, so that the space occupied by each receiving cavity is optimized.

Alternatively, the sidewalls of the first receiving chamber 110 and the second receiving chamber 120 may abut or overlap each other, for example, share a sidewall, thereby reducing the amount of space required as much as possible.

With the filter device of any of the above embodiments, it may be applied to a vehicle.

It should be noted that the embodiments of the present invention have better practicability and are not intended to limit the present invention in any way, and any person skilled in the art may change or modify the technical contents disclosed above to equivalent effective embodiments, but all the modifications or equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A filtering device, characterized in that the filtering device comprises:

the support forms an accommodating space, and the accommodating space comprises at least one semi-open first accommodating cavity and at least one semi-open second accommodating cavity;

the first capacitor is fixedly arranged in a first accommodating cavity;

2. The filtering device of claim 1,

the bracket comprises a mounting end face and a placing end face, the mounting end face is opposite to the placing end face, and the accommodating space is arranged on the mounting end face;

a first through hole, a second through hole, a third through hole and a fourth through hole are formed in the placing end face;

the second through hole is formed in the bottom surface of the first accommodating cavity and is overlapped with the negative copper bar, and the third welding leg penetrates into the second through hole.

3. The filtering device of claim 2,

the third through hole is formed in the bottom surface of the second accommodating cavity and is overlapped with the positive copper bar, and the fifth welding leg penetrates through the third through hole;

the fourth through hole is formed in the bottom surface of the second accommodating cavity and is overlapped with the negative copper bar, and the sixth welding leg penetrates into the fourth through hole.

4. The filtering device of claim 3,

a fifth through hole and a sixth through hole are formed in the middle of the placing end face in the length direction;

the fifth through hole is formed in the bottom surface of the first accommodating cavity and is overlapped with the grounding copper bar, and the second welding leg penetrates into the fifth through hole;

the sixth through hole is formed in the other part, which is located on the bottom surface of the first accommodating cavity and is overlapped with the ground copper bar, and the fourth welding leg penetrates into the sixth through hole.

5. The filtering device of claim 4,

the placing end faces provided with the fifth through hole and the sixth through hole are provided with grooves, and the extending direction of the grooves is along the length direction of the placing end faces.

6. The filtering device of claim 1,

the positive copper bar is parallel to the negative copper bar;

the adjacent first accommodating cavities have an inclination angle along the length direction of the support and are parallel to each other.

7. The filtering device of claim 6,

the first accommodating cavity is partially exposed in the projection direction of the bracket;

the second accommodating cavity is perpendicular to the length direction of the support.

8. The filtering device of claim 1,

the side walls of the first accommodating cavity and the second accommodating cavity are overlapped with each other.

9. A vehicle, characterized by comprising a filter device according to any one of claims 1-8.