CN210075074U - Direct current filtering structure, motor controller and vehicle - Google Patents
Direct current filtering structure, motor controller and vehicle Download PDFInfo
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- CN210075074U CN210075074U CN201921136738.5U CN201921136738U CN210075074U CN 210075074 U CN210075074 U CN 210075074U CN 201921136738 U CN201921136738 U CN 201921136738U CN 210075074 U CN210075074 U CN 210075074U
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- copper bar
- capacitor
- magnetic ring
- insulating support
- direct current
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- 229910052802 copper Inorganic materials 0.000 claims abstract description 105
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- 239000003990 capacitor Substances 0.000 claims abstract description 71
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- 239000011810 insulating material Substances 0.000 claims description 7
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Abstract
The utility model provides a direct current filtering structure, machine controller and vehicle relates to car safety technical field. The direct current filtering structure comprises: the circuit comprises an insulating support, a positive copper bar, a negative copper bar, a grounding copper bar, a first capacitor, a second capacitor and a magnetic ring. The insulating support is provided with a magnetic ring, the negative copper bar and the grounding copper bar are arranged on one side, far away from the magnetic ring, of the insulating support, and the positive copper bar is arranged on one side, close to the magnetic ring, of the insulating support. One end of the positive copper bar and one end of the negative copper bar are respectively connected with one end of the first capacitor and one end of the second capacitor, and the other ends of the first capacitor and the second capacitor are connected with the grounding copper bar. The other ends of the positive copper bar and the negative copper bar penetrate through the inner ring of the magnetic ring. The positive copper bar, the negative copper bar, the grounding copper bar and the insulating support are integrally formed and embedded in the insulating support. The stability of the direct current filtering structure is enhanced, so that the electromagnetic compatibility of the motor controller is improved, and the safety requirement of a vehicle is met.
Description
Technical Field
The utility model relates to an automobile safety technical field particularly, relates to a direct current filtering structure, machine controller and vehicle.
Background
Nowadays, the number of electronic devices on a vehicle is greatly increased, which leads to an increase in the density of electromagnetic waves in the working environment of the vehicle, which directly leads to an increasing demand for electromagnetic Compatibility (EMC) of the vehicle to meet the safety requirements of the vehicle. The motor controller is a core technology of a new energy automobile, and the electromagnetic compatibility problem is particularly outstanding, so that a direct current filter structure needs to be added in the motor controller to improve the electromagnetic compatibility.
In the prior art, in the dc filtering structure, two screws and a pressing plate fix the magnetic ring on the support, and the dc bus bar passes through the inside of the magnetic ring.
However, because the dc bus bar in the existing dc filter structure is only fixed by the bolt, the structure is complex and is easy to loosen, resulting in poor stability of the dc filter structure, poor electromagnetic compatibility of the motor controller, and unable to meet the safety requirements of the vehicle.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a direct current filtering structure, machine controller and vehicle to the not enough among the above-mentioned prior art to the stability of solving direct current filtering structure is relatively poor, makes machine controller's electromagnetic compatibility relatively poor, can not satisfy the problem of the safety demand of vehicle.
In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:
in a first aspect, an embodiment of the present invention provides a dc filtering structure, including: the circuit comprises an insulating support, a positive copper bar, a negative copper bar, a grounding copper bar, a first capacitor, a second capacitor and a magnetic ring. The insulating support is provided with a magnetic ring, the negative copper bar and the grounding copper bar are arranged on one side, far away from the magnetic ring, of the insulating support, and the positive copper bar is arranged on one side, close to the magnetic ring, of the insulating support. One end of the positive copper bar and one end of the negative copper bar are respectively connected with one end of the first capacitor and one end of the second capacitor, and the other ends of the first capacitor and the second capacitor are connected with the grounding copper bar. The other ends of the positive copper bar and the negative copper bar penetrate through the inner ring of the magnetic ring. The positive copper bar, the negative copper bar, the grounding copper bar and the insulating support are integrally formed and embedded in the insulating support.
Optionally, the dc filtering structure further includes: magnetic ring mounting groove and magnetic ring apron. The magnetic ring is accommodated in the magnetic ring mounting groove, and the magnetic ring cover plate is clamped with the magnetic ring mounting groove.
Optionally, a capacitor mounting groove is formed between the negative electrode copper bar and the magnetic ring mounting groove, and the capacitor mounting groove is used for mounting a first capacitor and a second capacitor.
Optionally, a buckle is arranged on the capacitor mounting groove and used for fixing the first capacitor and the second capacitor.
Optionally, one end of the first capacitor and one end of the second capacitor are respectively connected with the positive copper bar and the negative copper bar in a crimping manner, and the other end of the first capacitor and the other end of the second capacitor are connected with the ground copper bar in a crimping manner.
Optionally, the dc filtering structure further includes: and a current sensor. The positive copper bar is provided with a first mounting hole, and the position, close to the grounding copper bar, on the insulating support is provided with a second mounting hole. The first connecting hole of the current sensor is fixedly connected with the first mounting hole through a connecting piece, and the second connecting hole of the current sensor is fixedly connected with the second mounting hole through a connecting piece.
Optionally, the magnet ring is coated with an insulating material.
Optionally, the insulating support further comprises: and each support mounting hole is internally provided with an embedded threaded sleeve, and the embedded threaded sleeve is used for fixing the direct current filtering structure in the motor controller.
In a second aspect, the embodiment of the present invention further provides a motor controller, which includes the dc filtering structure provided by the first aspect.
In a third aspect, the embodiments of the present invention further provide a vehicle, including a motor and a motor controller, wherein the motor controller provides the motor controller for the above second aspect.
The utility model has the advantages that: through with anodal copper bar, negative pole copper bar and ground copper bar and insulating support integrated into one piece, connect firm difficult not hard up, reduced the unnecessary connecting piece for direct current filter structure is compacter, has improved overall structure's stability and insulating properties. The stability of the direct current filtering structure is enhanced, so that the electromagnetic compatibility of the motor controller is improved, and the safety requirement of a vehicle is met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is an assembly diagram of a dc filter structure according to an embodiment of the present invention;
fig. 2 is an exploded view of a dc filter structure according to an embodiment of the present invention;
fig. 3 is an assembly schematic diagram of a dc filtering structure and a current sensor according to an embodiment of the present invention.
Icon: 1-an insulating support; 2-positive copper bar; 3-negative electrode copper bar; 4-a grounding copper bar; 5-a first capacitance; 6-a second capacitance; 7-a magnetic ring; 8-a magnetic ring cover plate; 9-embedding a threaded sleeve; 10-a current sensor; 11-direct current filtering structure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is an assembly schematic diagram of a dc filtering structure provided by an embodiment of the present invention, and fig. 2 is an explosion diagram of a dc filtering structure provided by an embodiment of the present invention.
As shown in fig. 1, the dc filter structure includes: the device comprises an insulating support 1, a positive copper bar 2, a negative copper bar 3, a grounding copper bar 4 and a magnetic ring 7. The insulating support 1 is provided with a magnetic ring 7. The negative copper bar 3 and the grounding copper bar 4 are arranged on one side, far away from the magnetic ring 7, of the insulating support 1, and the positive copper bar 2 is arranged on one side, close to the magnetic ring 7, of the insulating support 1. One end of the positive copper bar 2 and one end of the negative copper bar 3 are respectively connected with one end of the first capacitor 5 and one end of the second capacitor 6, and the other end of the first capacitor 5 and the other end of the second capacitor 6 are connected with the grounding copper bar 4. The other ends of the anode copper bar 2 and the cathode copper bar 3 penetrate through the inner ring of the magnetic ring 7. Wherein, positive copper bar 2, negative copper bar 3 and ground copper bar 4 and insulating support 1 integrated into one piece inlay and locate in insulating support 1.
In some embodiments, the positive copper bar 2, the negative copper bar 3 and the ground copper bar 4 can be formed by injection molding through a plastic-coating process, and are embedded in the insulating support 1, and only the required portions of the wiring are exposed, so as to facilitate the wiring.
When one end of the positive electrode copper bar 2 and one end of the negative electrode copper bar 3 are respectively connected with one ends of the first capacitor 5 and the second capacitor 6, the positive electrode copper bar and the negative electrode copper bar can be connected in a crimping mode, and similarly, the other ends of the first capacitor 5 and the second capacitor 6 are connected with the grounding copper bar 4.
In this embodiment, through with anodal copper bar, negative pole copper bar and ground copper bar and insulating support integrated into one piece, connect firm difficult not hard up, reduced the unnecessary connecting piece for direct current filter structure is compacter, has improved overall structure's stability and insulating properties. The stability of the direct current filtering structure is enhanced, so that the electromagnetic compatibility of the motor controller is improved, and the safety requirement of a vehicle is met.
Optionally, the dc filtering structure further includes: the magnetic ring installation groove is formed in the magnetic ring installation groove, the magnetic ring 7 is contained in the magnetic ring installation groove, and the magnetic ring cover plate 8 is clamped with the magnetic ring installation groove.
In some embodiments, the shape and size of the magnetic ring installation groove are matched with the magnetic ring 7, for example, the magnetic ring installation groove can be in interference fit with the magnetic ring 7 when the magnetic ring 7 is accommodated so as to limit the position of the magnetic ring 7.
In some embodiments, the magnetic ring mounting groove and the magnetic ring cover plate 8 are provided with a matching connecting buckle, for example, a female buckle is provided on the magnetic ring mounting groove, a male buckle is provided on the magnetic ring cover plate 8, and the magnetic ring cover plate 8 is clamped with the magnetic ring mounting groove through the male buckle and the female buckle. After the magnetic ring cover plate 8 is clamped in the magnetic ring mounting groove, the displacement of the magnetic ring 7 in the vertical direction can be limited, so that the magnetic ring 7 can be stably accommodated in the magnetic ring mounting groove.
In some embodiments, the magnetic ring 7 may also be sealed in the magnetic ring mounting groove by glue through a glue injection process, which is not limited herein.
The magnetic ring cover plate 8 is clamped with the magnetic ring mounting groove, so that the magnetic ring 7 is fixed in the magnetic ring mounting groove, or the magnetic ring 7 is fixed in the magnetic ring mounting groove through an adhesive injection process, the magnetic ring 7 can be fixed more stably, and the overall stability and the insulativity are improved. Wherein, the magnetic ring cover plate 8 is fixed in a clamping manner, so that the assembly process of the direct current filter is simple and convenient.
Optionally, a capacitor mounting groove is formed between the negative electrode copper bar 3 and the magnetic ring mounting groove, and the capacitor mounting groove is used for mounting the first capacitor 5 and the second capacitor 6.
One end of the first capacitor 5 is connected with the positive copper bar 2, and the other end is connected with the grounding copper bar 4, so that the first capacitor 5 can inhibit common-mode interference between the positive copper bar 2 and the grounding copper bar 4; one end of the second capacitor 6 is connected with the negative copper bar 3, and the other end is connected with the grounding copper bar 4, so that the second capacitor 6 can inhibit the common-mode interference between the negative copper bar 3 and the grounding copper bar 4.
Two capacitors in the capacitor mounting groove form a Y capacitor, and the first capacitor 5 and the second capacitor 6 can form the Y capacitor to suppress common mode interference in the circuit.
Through setting up Y electric capacity in anodal copper bar 2 or negative pole copper bar 3 department to and wear to locate magnetic ring 7 with anodal copper bar 2 and negative pole copper bar 3's one end, can reduce external environment to the interference of circuit, reduced traditional formula installation of punching, in order to improve the whole EMC grade of machine controller.
In some embodiments, one end of the first capacitor 5 and one end of the second capacitor 6 are connected to the positive copper bar 2 and the negative copper bar 3 respectively by crimping, and the other end of the first capacitor 5 and the other end of the second capacitor 6 are connected to the ground copper bar 4 by crimping.
The crimping manner may include crimping through a wire nose, crimping through a sleeve, or the like, which is not limited herein.
The wiring is carried out in a crimping mode, so that the convenience of installation can be improved, and meanwhile, the manufacturing cost is reduced.
Optionally, a buckle is arranged on the capacitor mounting groove and used for fixing the first capacitor 5 and the second capacitor 6.
The bayonet on the capacitor mounting groove can be the same as the bayonet on the magnetic ring mounting groove and the magnetic ring cover plate 8, and similarly, the capacitor can also be fixed through the glue injection process, which is not described again.
Through the mode fixed capacitance of buckle or fix the electric capacity through the injecting glue technology, for traditional punching formula installation, can effectively increase the ability of electric capacity anti-vibration, improve the stability of electric capacity. Wherein, adopt the buckle mode to connect the electric capacity, can improve installation convenience and low cost to the maximum extent.
Fig. 3 is an assembly schematic diagram of a dc filtering structure and a current sensor according to an embodiment of the present invention.
Optionally, as shown in fig. 3, referring to fig. 1 and 2, the dc filter structure 11 further includes: a current sensor 10. The positive copper bar 2 is provided with a first mounting hole, and the insulating support 1 is provided with a second mounting hole at a position close to the grounding copper bar 4. The first connecting hole of the current sensor 10 is fixedly connected with the first mounting hole through a connecting piece, and the second connecting hole of the current sensor 10 is fixedly connected with the second mounting hole through a connecting piece.
The current sensor 10 may include, for example: two connection holes, i.e., a first connection hole and a second connection hole, each of which may be a through hole. The first connection hole may be one connection hole of the current sensor 10, and the second connection hole may be the other connection hole of the current sensor. The first connecting hole, the second connecting hole, the first mounting hole and the second mounting hole can be threaded holes. The first connection hole of the current sensor 10 can be fixedly connected with the first mounting hole through a threaded connector, and the second connection hole of the current sensor 10 is fixedly connected with the second mounting hole through a threaded connector. The threaded connection may be any type of threaded connection such as a bolt or screw.
In some embodiments, a current sensor 10 may be added to the dc filter structure 11 to obtain the current in the dc filter structure 11.
In the embodiment, whether the current sensor 10 needs to be installed or not can be determined according to the product requirements so as to meet the requirements of different products, and the applicability is wider. If the current sensor 10 needs to be installed, the installation can be carried out in the above manner; if the current sensor 10 does not need to be installed, the first installation hole and the second installation hole can be directly connected through the copper bar.
Optionally, the magnetic ring 7 is externally coated with an insulating material.
In some embodiments, the insulating material may be silicone rubber insulating sleeves, varnished cloth, oil paint, asphalt, glass fiber, polyester paint, mica, quartz, tetrafluoroethylene, and the like, without limitation.
It should be noted that, when selecting the insulating material, the operating environment of the dc filter structure 11, such as high temperature, low temperature, air humidity, etc., needs to be considered to select the insulating material having sufficient insulating performance in the operating environment.
The magnetic ring 7 is coated with an insulating material, so that the insulating capability between the magnetic ring 7 and the positive copper bar 2, the negative copper bar 3 or the grounding copper bar 4 can be enhanced under the condition of not influencing the filtering performance of the magnetic ring 7。
Optionally, the insulating support 1 further comprises: each support mounting hole is internally provided with an embedded threaded sleeve 9, and the embedded threaded sleeves 9 are used for fixing the direct current filter structure 11 in the motor controller.
In some embodiments, the insert nuts 9 are disposed in a plurality of connection holes of the insulating support 1, and are used for being fixedly connected with the mounting holes of the motor controller through a fixed connector, which may be, but is not limited to, a screw, a bolt, a buckle, and the like.
The insulating support 1 can be strengthened by fixing the embedded threaded sleeve 9, and the insulating support 1 is prevented from being crushed when being installed. The material of the insert nut 9 may be an alloy material such as stainless steel, or may be plastic having sufficient strength, and is not limited herein.
The embodiment of the utility model provides a still provide a motor controller, including above-mentioned direct current filtering structure.
The embodiment of the utility model provides a still provide a vehicle, including motor and machine controller, wherein, machine controller is above-mentioned machine controller.
The vehicle may be an automobile, an electric automobile, a hybrid automobile, an electric motorcycle, a hybrid motorcycle, an electric bicycle, a high-speed rail, a motor car, an airplane, and the like, which is not limited herein.
Because the direct current filter structure is used in the motor controller, and the vehicle comprises the motor controller, the beneficial effects are the same as those of the motor controller, and the description is omitted.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A direct current filtering structure, comprising:
the circuit comprises an insulating support, a positive copper bar, a negative copper bar, a grounding copper bar, a first capacitor, a second capacitor and a magnetic ring;
the insulating support is provided with a magnetic ring, the negative copper bar and the grounding copper bar are arranged on one side, far away from the magnetic ring, of the insulating support, and the positive copper bar is arranged on one side, close to the magnetic ring, of the insulating support;
one end of the positive copper bar and one end of the negative copper bar are respectively connected with one end of the first capacitor and one end of the second capacitor, and the other ends of the first capacitor and the second capacitor are connected with the grounding copper bar;
the other ends of the positive electrode copper bar and the negative electrode copper bar penetrate through the inner ring of the magnetic ring;
the positive copper bar, the negative copper bar and the grounding copper bar are integrally formed with the insulating support and embedded in the insulating support.
2. The dc filtering structure according to claim 1, further comprising: the magnetic ring mounting groove and the magnetic ring cover plate are arranged in the magnetic ring mounting groove;
the magnetic ring is accommodated in the magnetic ring mounting groove, and the magnetic ring cover plate is clamped with the magnetic ring mounting groove.
3. The direct current filter structure of claim 2, wherein a capacitor mounting groove is formed between the negative copper bar and the magnetic ring mounting groove, and the capacitor mounting groove is used for mounting the first capacitor and the second capacitor.
4. The direct current filter structure of claim 3, wherein a buckle is arranged on the capacitor mounting groove, and the buckle is used for fixing the first capacitor and the second capacitor.
5. The direct current filter structure according to claim 1, wherein one end of the first capacitor and one end of the second capacitor are connected to the positive electrode copper bar and the negative electrode copper bar respectively by crimping, and the other end of the first capacitor and the other end of the second capacitor are connected to the ground copper bar by crimping.
6. The dc filtering structure according to claim 1, further comprising: a current sensor;
a first mounting hole is formed in the positive copper bar, and a second mounting hole is formed in the position, close to the grounding copper bar, of the insulating support;
the first connecting hole of the current sensor is fixedly connected with the first mounting hole through a connecting piece, and the second connecting hole of the current sensor is fixedly connected with the second mounting hole through a connecting piece.
7. The direct current filter structure according to any one of claims 1 to 6, wherein the magnetic ring is coated with an insulating material.
8. The dc filtering structure according to any one of claims 1 to 6, further comprising on the insulating support: the direct current filter structure comprises at least one support mounting hole, wherein each support mounting hole is internally provided with an embedded threaded sleeve, and the embedded threaded sleeves are used for fixing the direct current filter structure in a motor controller.
9. A motor controller, comprising: a direct current filter structure as claimed in any one of claims 1 to 8.
10. A vehicle, comprising: a motor and a motor controller, wherein the motor controller is the motor controller of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921136738.5U CN210075074U (en) | 2019-07-18 | 2019-07-18 | Direct current filtering structure, motor controller and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921136738.5U CN210075074U (en) | 2019-07-18 | 2019-07-18 | Direct current filtering structure, motor controller and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210075074U true CN210075074U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921136738.5U Expired - Fee Related CN210075074U (en) | 2019-07-18 | 2019-07-18 | Direct current filtering structure, motor controller and vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN210075074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431496A (en) * | 2020-03-27 | 2020-07-17 | 一巨自动化装备（上海）有限公司 | Multistage filtering EMC structure |
-
2019
- 2019-07-18 CN CN201921136738.5U patent/CN210075074U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431496A (en) * | 2020-03-27 | 2020-07-17 | 一巨自动化装备（上海）有限公司 | Multistage filtering EMC structure |
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Granted publication date: 20200214 |