CN215498743U - Terminal block, circuit conversion device, and motor module - Google Patents
Terminal block, circuit conversion device, and motor module Download PDFInfo
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- CN215498743U CN215498743U CN202121199632.7U CN202121199632U CN215498743U CN 215498743 U CN215498743 U CN 215498743U CN 202121199632 U CN202121199632 U CN 202121199632U CN 215498743 U CN215498743 U CN 215498743U
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Abstract
The application provides a terminal block, a circuit conversion device and a motor module. The terminal block includes a setting portion formed of an insulating material and a plurality of bus bars provided to the setting portion. The plurality of bus bars are divided into one or more groups, at least one group including two bus bars. The two bus bars have flat plate portions with extension surfaces arranged opposite to each other. The setting part has a main body part and a support part protruding from the main body part in a first direction. The support portion has two fixing portions and a convex portion located between the two fixing portions. A concave part is formed between the convex part and the fixed part. The concave portion extends along the extending direction of the flat plate portions of the two bus bars. The flat plate portions of the two bus bars are mounted in the recess. The protruding height of the convex part is larger than that of the fixing part. Accordingly, the creepage distance between the two bus bars can be secured by the design of the convex portion, and the distance between the two bus bars can be made closer by the design of the flat plate shape of the bus bar and the design of the concave portion, thereby reducing the equivalent series inductance (ESL).
Description
Technical Field
The embodiment of the application relates to the field of electromechanics, in particular to a terminal block, a circuit conversion device and a motor module.
Background
A circuit conversion device (for example, an inverter) for driving an electric vehicle incorporates electric components for supplying electric power. The electrical component has a bus bar. In order to ensure insulation between bus bars to which a high voltage is applied, it is necessary that a space distance and a creepage distance specified by JIS (Japanese Industrial Standards) are satisfied according to the voltage. The spatial distance refers to the shortest distance between two conductive portions through the space. The creepage distance refers to the shortest distance between two conductive parts along the surface of the insulator.
It should be noted that the above background description is only for the convenience of clear and complete description of the technical solutions of the present application and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present application.
SUMMERY OF THE UTILITY MODEL
The inventors found that, in order to ensure the space distance and the creeping distance specified in JIS, the larger the distance between the bus bars is, the better. However, at the cost, in the bus bars that supply the direct-current voltage, if the distance between the bus bars is too large, there occurs a problem that the Equivalent Series Inductance (ESL) of the bus bars is lowered.
If the variation time of the inverter switching is t ═ LI/V, LI is the value of ESL of the bus bars of the inverter, V is the value of voltage applied to the bus bars, and V is not changed, if the ESL of the bus bars is increased, the variation time of the inverter switching is increased, resulting in increased loss of the inverter and reduced efficiency.
In order to solve at least one of the above-mentioned problems or other similar problems, embodiments of the present application provide a terminal block, a circuit converting device, and a motor module.
According to an aspect of the embodiments of the present application, there is provided a terminal block including a setting portion formed of an insulating material, and a plurality of bus bars provided to the setting portion, the plurality of bus bars being divided into one or more groups, at least one group including two bus bars,
the two bus bars are respectively provided with a flat plate part with extension surfaces which are oppositely configured;
the setting part comprises a main body part and a supporting part protruding from the main body part in a first direction, the supporting part comprises two fixing parts and a convex part positioned between the two fixing parts, a concave part is formed between the convex part and the fixing parts, the concave part extends along the extension direction of the flat plate parts of the two bus bars, the flat plate parts of the two bus bars are loaded in the concave part, and the protruding height of the convex part is larger than that of the fixing part.
In some embodiments, each of the two bus bars further includes a connecting portion formed by bending from an end portion of the flat plate portion in the first direction of the portion mounted in the recess portion in a second direction perpendicular to the first direction, the connecting portions of the two bus bars being bent in opposite directions.
In some embodiments, the connecting portions of the two bus bars are respectively mounted on the two fixing portions of the support portion and electrically connected to an external module.
In some embodiments, the protruding height of the convex portion is greater than the height of the connecting portion of the two bus bars after being mounted to the two fixing portions, respectively.
In some embodiments, the number of the support portions is plural.
In some embodiments, the bus bar is made of a metal material.
In some embodiments, the setting portion is made of a resin material.
According to another aspect of the embodiments of the present application, there is provided a circuit converting apparatus, including:
the terminal block according to the foregoing embodiment; and
and the converter is arranged on the terminal block and is electrically connected with the bus bar of the terminal block.
According to a further aspect of the embodiments of the present application, there is provided an electric machine module including the circuit converting device of the foregoing embodiments.
One of the beneficial effects of the embodiment of the application lies in: the planar design of the bus bar and the design of the concave portion can make the two bus bars close to each other, thereby reducing the equivalent series inductance.
Specific embodiments of the present application are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the application may be employed. It should be understood that the embodiments of the present application are not so limited in scope. The embodiments of the application include many variations, modifications and equivalents within the spirit and scope of the appended claims.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic view of one example of a terminal block of an embodiment of the present application;
fig. 2 is a schematic view of another angle of the terminal block shown in fig. 1;
fig. 3 is a partially enlarged schematic view of the terminal block shown in fig. 1;
FIG. 4 is a schematic view of the terminal block of FIG. 1 after removal of the bus bar;
fig. 5 is a partially enlarged schematic view of the terminal block shown in fig. 4;
fig. 6 is a schematic cross-sectional view of the fixing portion, the convex portion, and the concave portion of the support portion of the terminal block installation portion according to the embodiment of the present application.
Detailed Description
The foregoing and other features of the present application will become apparent from the following description, taken in conjunction with the accompanying drawings. In the description and drawings, particular embodiments of the application are disclosed in detail as being indicative of some of the embodiments in which the principles of the application may be employed, it being understood that the application is not limited to the described embodiments, but, on the contrary, is intended to cover all modifications, variations, and equivalents falling within the scope of the appended claims.
In the embodiments of the present application, the terms "first", "second", and the like are used for distinguishing different elements by reference, but do not denote a spatial arrangement, a temporal order, or the like of the elements, and the elements should not be limited by the terms. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising," "including," "having," and the like, refer to the presence of stated features, elements, components, and do not preclude the presence or addition of one or more other features, elements, components, and elements.
In the embodiments of the present application, the singular forms "a", "an", and the like may include the plural forms and should be interpreted broadly as "a" or "an" and not limited to the meaning of "a" or "an"; furthermore, the term "comprising" should be understood to include both the singular and the plural, unless the context clearly dictates otherwise. Further, the term "according to" should be understood as "at least partially according to … …," and the term "based on" should be understood as "based at least partially on … …," unless the context clearly dictates otherwise.
Embodiments of the present application will be described below with reference to the drawings.
Embodiments of the first aspect
The embodiment of the application provides a terminal block.
Fig. 1 is a schematic view of an example of a terminal block of an embodiment of the present application, and fig. 2 is a schematic view of another angle of the terminal block shown in fig. 1. As shown in fig. 1 and 2, the terminal block of the embodiment of the present application includes a setting portion 10 formed of an insulating material and a plurality of bus bars 20 provided to the setting portion 10, and the plurality of bus bars 20 may be divided into one or more groups, at least one group including two bus bars. Two bus bars 20 are shown in fig. 1 and 2, but the present application is not limited thereto, and the number of bus bars 20 may be other depending on the implementation of the terminal block.
Fig. 3 is a partially enlarged schematic view of the terminal block shown in fig. 1, fig. 4 is a schematic view of the terminal block shown in fig. 1 after the bus bar 20 is removed, and fig. 5 is a partially enlarged schematic view of the terminal block shown in fig. 4.
As shown in fig. 1 to 3, each of the two bus bars 20 has a flat plate portion 21 whose extension surfaces are arranged to face each other. As shown in fig. 4 and 5, the installation portion 10 includes a main body portion 11 and a support portion 12 protruding from the main body portion 11 in the first direction, the support portion 12 includes two fixing portions 121 and a convex portion 122 located between the two fixing portions 121, a concave portion 123 is formed between the convex portion 122 and the fixing portion 121, the concave portion 123 extends along the extending direction of the flat plate portions 21 of the two bus bars 20, and the flat plate portions 21 of the two bus bars 20 are mounted in the concave portion 123.
Fig. 6 is a schematic cross-sectional view of the fixing portion 121 and the convex portion 122 and the concave portion 123. As shown in fig. 6, in the present embodiment, the protruding height of the convex portion 122 is greater than the protruding height of the fixing portion 121. This structure of the terminal block can reduce ESL while securing a creepage distance of the bus bar 20.
In some embodiments, as shown in fig. 3, each of the two bus bars 20 further includes a connecting portion 22, the connecting portion 22 is formed by bending from an end portion of the flat plate portion 21 in the first direction of the portion mounted in the recess 123 to a second direction perpendicular to the first direction, and the bending directions of the connecting portions 22 of the two bus bars 20 are opposite to each other. Thereby, the bus bars 20 can be fixed to the terminal block, and a spatial distance between the bus bars 20 can be ensured.
In the above embodiment, the first direction refers to the protruding direction of the support portion 12, that is, upward as shown in fig. 6; the second direction refers to a direction perpendicular to the first direction, i.e., left and right as shown in fig. 6.
In some embodiments, as shown in fig. 3, the connecting portions 22 of the two bus bars 20 are respectively mounted on the two fixing portions 121 of the support portion 12 and electrically connected to the external module. This ensures that the bus bar 20 transmits power to the external module.
In the above embodiments, the external module is, for example, an electricity utilization module included in an implementation environment to which the terminal block is applied. For example, if the terminal block is applied in an inverter, the external module is, for example, a converter of the inverter.
In some embodiments, the protruding height of the protruding portion 122 is greater than the height of the connecting portion 22 of the two bus bars 20 after being mounted to the two fixing portions 121, respectively. Thereby, the creepage distance of the bus bar 20 can be further ensured.
In the present embodiment, the supporting portion 12 may be plural, and each supporting portion 12 has the fixing portion 121 and the convex portion 122 and forms the concave portion 123. Fig. 1, 2, and 4 show the case where there are three support portions 12, but the present application does not limit this, and the number of the support portions 12 may be other depending on the application scenario of the terminal block.
In the embodiment of the present application, the bus bar 20 is made of a metal material, and the material of the metal is not limited in the present application.
In the embodiment of the present application, the setting part 10 is made of a resin material, and the present application does not limit the material of the specific resin material.
It should be noted that, only the structure of the terminal block related to the present application is described above, the terminal block may further include other structures, and specifically, the related art may be referred to, and the description is omitted here. It is also possible to add components not shown in fig. 1 to 6 or to reduce one or more components in fig. 1 to 6. Regarding other configurations and structures of the terminal block, the related art can be referred to, and the description thereof is omitted here.
According to the terminal block of the embodiment of the present application, the creepage distance between the two bus bars can be ensured by the design of the convex portion, and the distance between the two bus bars can be made closer by the design of the flat plate shape of the bus bar and the design of the concave portion, thereby reducing the equivalent series inductance.
Embodiments of the second aspect
Embodiments of the present application provide a circuit conversion device having the terminal block and the converter described in the embodiments of the first aspect. The converter is disposed on the terminal block and electrically connected to the bus bar of the terminal block. As for the relative positional relationship and the connection manner of the converter and the terminal block, the related art can be referred to, and the description thereof is omitted here. Further, since the structure of the terminal block has been described in detail in the embodiment of the first aspect, the contents thereof are incorporated herein, and the description thereof is omitted here.
In the embodiment of the present application, the circuit converting device is, for example, an inverter, and regarding other structures of the circuit converting device, reference may be made to the related art, and description thereof is omitted here.
Examples of the third aspect
An embodiment of the present application provides an electric machine module, which includes the circuit converting device according to the embodiment of the second aspect. The present application does not limit the specific structure of the motor module, and reference may be made to related technologies, and descriptions thereof are omitted here.
The present application has been described in conjunction with specific embodiments, but it should be understood by those skilled in the art that these descriptions are intended to be illustrative, and not limiting. Various modifications and adaptations of the present application may occur to those skilled in the art based on the spirit and principles of the application and are within the scope of the application.
Preferred embodiments of the present application are described above with reference to the accompanying drawings. The many features and advantages of the embodiments are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of the embodiments that fall within the true spirit and scope thereof. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the embodiments of the present application to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope thereof.
Claims (9)
1. A terminal block comprising a setting portion formed of an insulating material and a plurality of bus bars arranged in the setting portion, the plurality of bus bars being divided into one or more groups, at least one group including two bus bars, characterized in that,
the two bus bars are respectively provided with a flat plate part with extension surfaces which are oppositely configured;
the setting part comprises a main body part and a supporting part protruding from the main body part in a first direction, the supporting part comprises two fixing parts and a convex part positioned between the two fixing parts, a concave part is formed between the convex part and the fixing parts, the concave part extends along the extension direction of the flat plate parts of the two bus bars, the flat plate parts of the two bus bars are loaded in the concave part, and the protruding height of the convex part is larger than that of the fixing part.
2. The terminal block of claim 1,
the two bus bars further include connecting portions bent from ends of the flat plate portion in the first direction of the portion mounted in the recess portion in a second direction perpendicular to the first direction, the connecting portions of the two bus bars being bent in opposite directions.
3. The terminal block of claim 2,
the connecting portions of the two bus bars are respectively mounted on the two fixing portions of the support portion and electrically connected to an external module.
4. The terminal block of claim 3,
the protruding height of the protruding portion is larger than the height of the connecting portion of the two bus bars after being mounted to the two fixing portions, respectively.
5. The terminal block according to any one of claims 1 to 4,
the number of the support portions is plural.
6. The terminal block according to any one of claims 1 to 4,
the bus bar is made of a metal material.
7. The terminal block according to any one of claims 1 to 4,
the setting portion is made of a resin material.
8. A circuit converting device, comprising:
the terminal block of any one of claims 1 to 7; and
and the converter is arranged on the terminal block and is electrically connected with the bus bar of the terminal block.
9. An electric machine module, characterized in that it comprises a circuit-changing arrangement according to claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121199632.7U CN215498743U (en) | 2021-05-31 | 2021-05-31 | Terminal block, circuit conversion device, and motor module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121199632.7U CN215498743U (en) | 2021-05-31 | 2021-05-31 | Terminal block, circuit conversion device, and motor module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215498743U true CN215498743U (en) | 2022-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121199632.7U Active CN215498743U (en) | 2021-05-31 | 2021-05-31 | Terminal block, circuit conversion device, and motor module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215498743U (en) |
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2021
- 2021-05-31 CN CN202121199632.7U patent/CN215498743U/en active Active
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