Capacitor with insulation positioning function

Abstract

The utility model provides a capacitor with an insulation positioning function. The capacitor comprises a shell, a core group, a first busbar, a second busbar, an insulation part and a positioning part, the shell defines a cavity for mounting the core group; the core group is provided with a first electrode surface and a second electrode surface; the first busbar is connected with the first electrode surface so as to lead an electrode out of the cavity; the second busbar is connected with the second electrode surface so as to lead the other electrode out of the cavity; the insulating part is suitable for insulating the electrodes between the first busbar and the second busbar; the positioning piece is arranged on the first busbar to jointly form a positioning space, and the insulating piece is clamped into the positioning space to position the insulating piece. The capacitor with the insulation positioning function can be used for fixing an insulation part, the assembly difficulty is reduced, the assembly efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electronics, in particular to a capacitor with insulation positioning. Background Art

[0002] With the rapid development of power electronics technology, metallized film capacitors have been widely used in the field of new energy vehicles. However, as the automotive field has increasingly higher requirements for cost reduction of film capacitors, the traditional thin copper bar insulation paper of film capacitors needs to be fixed in position with tape, which is complicated to operate and costly. The pins processed on the copper bar of the film capacitor of the present invention are used for positioning the insulating parts (insulating paper, plastic parts or other insulating parts), which can reduce assembly time and reduce costs.

[0003] The traditional film capacitor structure is generally composed of a capacitor core (including plates, dielectrics and metal layers sprayed on both end surfaces), lead electrodes (usually leads, solder tabs or busbars), a packaging shell, a filling resin (such as epoxy resin), and an insulating part fixed with tape.

[0004] In the related art, the insulating parts are fixed with tape, which results in complicated assembly, long cycle time and high production cost. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent. To this end, the purpose of the utility model is to provide a capacitor with an insulation positioning device, which can be used to fix the insulating member, reduce the difficulty of assembly, improve the assembly efficiency, and reduce the production cost.

[0006] In order to achieve the above-mentioned purpose, the utility model proposes a capacitor with insulation positioning, which includes: a shell, a core group, a first busbar, a second busbar, an insulation member and a positioning member;

[0007] The housing defines a cavity for mounting the core assembly;

[0008] The core group has a first electrode surface and a second electrode surface;

[0009] The first busbar is connected to the first electrode surface to lead an electrode out of the cavity;

[0010] The second busbar is connected to the second electrode surface to lead another electrode out of the cavity;

[0011] The insulating member is suitable for insulating the electrodes between the first busbar and the second busbar;

[0012] The positioning member is arranged on the first busbar to jointly construct a positioning space, and the insulating member is inserted into the positioning space to position the insulating member.

[0013] According to the capacitor with insulation positioning proposed by the utility model, the insulation part is clamped into the positioning space formed between the positioning part and the first busbar by the positioning part, so that the insulation part is quickly positioned. The capacitor with insulation positioning can be used to fix the insulation part, reduce the difficulty of assembly, improve the assembly efficiency, and reduce the production cost.

[0014] In addition, the capacitor with insulation positioning proposed in the above embodiment of the utility model may also have the following additional technical features:

[0015] Optionally, the insulating member has an isolating portion and a positioning portion, the isolating portion is suitable for isolating and insulating the first busbar from the second busbar, and the positioning portion is suitable for being inserted into the positioning space.

[0016] Optionally, the positioning member is integrally formed with the first busbar, and a portion where the positioning member is formed is hollowed out.

[0017] Optionally, the first busbar has a plurality of first pins and a plurality of first connecting portions, and the plurality of first connecting portions are suitable for connecting the first electrode surfaces to lead an electrode out of the cavity from the plurality of first pins; and the second busbar has a plurality of second pins and a plurality of second connecting portions, and the plurality of second connecting portions are suitable for connecting the second electrode surfaces to lead another electrode out of the cavity from the plurality of second pins.

[0018] Furthermore, the first connecting portion and the second connecting portion are both hollowed out.

[0019] Further, the third busbar defines a third pin, the fourth busbar defines a fourth pin, and the third pin and the fourth pin are arranged at intervals in the horizontal direction and both extend outside the shell.

[0020] Furthermore, the housing defines a plurality of pin support members, and the plurality of pin support members are arranged in one-to-one correspondence with the plurality of first pins and the plurality of second pins to support the plurality of first pins and the plurality of second pins.

[0021] Optionally, a filler is injected into the gap of the shell to fill the opening of the shell flat.

[0022] Optionally, a plurality of mounting holes are provided on the outer edge of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a capacitor with insulation positioning according to an embodiment of the utility model;

[0024] Figure 2It is a partial structural schematic diagram of a capacitor with insulation positioning according to an embodiment of the utility model;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure from another perspective;

[0026] Description of reference numerals:

[0027] Shell 1, cavity 11, pin support 12, mounting hole 13, core group 2, first electrode surface 21, second electrode surface 22, first busbar 3, first pin 31, first connecting portion 32, second busbar 4, second pin 41, second connecting portion 42, insulating member 5, isolating portion 51, positioning portion 52, positioning member 6, filler 7. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0030] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Reference below Figure 1-Figure 3 , the implementation of the capacitor with insulation positioning proposed in the embodiment of the utility model is described in detail.

[0032] The capacitor with insulation positioning according to the embodiment of the utility model comprises: a housing 1 , a core group 2 , a first busbar 3 , a second busbar 4 , an insulating member 5 and a positioning member 6 .

[0033] Specifically, the shell 1 defines a cavity 11 for installing the core group 2; the core group 2 has a first electrode surface 21 and a second electrode surface 22; the first busbar 3 is connected to the first electrode surface 21 to lead one electrode out of the cavity 11; the second busbar 4 is connected to the second electrode surface 22 to lead another electrode out of the cavity 11; the insulating member 5 is suitable for insulating the electrodes between the first busbar 3 and the second busbar 4; the positioning member 6 is arranged on the first busbar 3 to jointly construct a positioning space, and the insulating member 5 is snapped into the positioning space to position the insulating member 5.

[0034] That is, the shell 1 defines a cavity 11 that is convenient for installing the core group 2, the first busbar 3 is connected to the first electrode surface 21 of the core group 2 and one electrode of the core group 2 is led out of the cavity 11, the second busbar 4 is connected to the second electrode surface 22 of the core group 2 and the other electrode of the core group 2 is led out of the cavity 11, the two electrodes led out can be easily connected to the counterpart, the insulating member 5 can separate and insulate the two electrodes to avoid short circuit, and the insulating member 5 is quickly positioned and installed by being inserted into the positioning space formed by the positioning member 6 and the first busbar 3. The capacitor with insulating positioning can be used to fix the insulating member 5, reduce the difficulty of assembly, improve assembly efficiency, and reduce production costs.

[0035] Thus, the insulating member 5 is inserted into the positioning space formed between the positioning member 6 and the first busbar 3 by the positioning member 6, so that the insulating member 5 is quickly positioned. The capacitor with insulating positioning can be used to fix the insulating member 5, reduce assembly difficulty, improve assembly efficiency, and reduce production costs.

[0036] As for the insulating member 5, the insulating member 5 has an isolating portion 51 and a positioning portion 52. The isolating portion 51 is suitable for isolating and insulating the first busbar 3 and the second busbar 4, and the positioning portion 52 is suitable for snapping into the positioning space. It can be understood that the first busbar 3 and the second busbar 4 can be isolated by the isolating portion 51 so as to avoid the first busbar 3 and the second busbar 4 from contacting each other and short-circuiting. The positioning portion 52 is snapped into the positioning space to realize the rapid positioning of the insulating member 5 after installation, thereby avoiding displacement of the insulating member 5 and ensuring the reliability of insulation. Among them, the insulating member 5 can be an insulating paper or a plastic member, and one positioning portion 52 can be positioned by two positioning members 6.

[0037] Regarding the formation of the positioning member 6, the positioning member 6 is integrally formed with the first busbar 3, and the location where the positioning member 6 is formed is hollowed out. It can be understood that since the first busbar 3 is usually formed by stamping or bending, the positioning member 6 is integrally formed with the first busbar 3, so that the secondary processing of the positioning member 6 can be avoided. The positioning member 6 can be directly formed synchronously when the first busbar 3 is stamped or bent, which is conducive to the control of processing costs and improves processing efficiency. The location where the positioning member 6 is formed is hollowed out, which can facilitate the positioning member 6 to remove the surrounding material of the positioning member 6 during the stamping process, so as to facilitate the deformation of the positioning member 6 to form a positioning space. Among them, the positioning member 6 can be L-shaped.

[0038] For the first busbar 3 and the second busbar 4, the first busbar 3 has a plurality of first pins 31 and a plurality of first connecting portions 32, the plurality of first connecting portions 32 are suitable for connecting the first electrode surface 21 to lead one electrode out of the cavity 11 from the plurality of first pins 31, and the second busbar 4 has a plurality of second pins 41 and a plurality of second connecting portions 42, the plurality of second connecting portions 42 are suitable for connecting the second electrode surface 22 to lead another electrode out of the cavity 11 from the plurality of second pins 41. It can be understood that the first connecting portion 32 is connected to the first electrode surface 21 of the core group 2, and then one electrode of the core group 2 is led out of the cavity 11 through the first pin 31. Similarly, the second connecting portion 42 is connected to the second electrode surface 22 of the core group 2, and then the other electrode of the core group 2 is led out of the cavity 11 through the second pin 41. The two electrodes led out of the first pin 31 and the second pin 41 can be easily connected to the counterpart. A first pin 31 and a second pin 41 are adjacently and arranged side by side to form a terminal group. The number of the terminal groups may be the same as the number of the cores in the core group 2 .

[0039] The first connection part 32 and the second connection part 42 are both hollowed out. It can be understood that the hollowing out of the first connection part 32 and the second connection part 42 can increase the connection surface between the first connection part 32 and the second connection part 42 and the electrode surface of the core group 2, so that the connection between the first connection part 32 and the second connection part 42 and the electrode surface of the core group 2 is more firmly established. The first connection part 32 and the second connection part 42 can be welded to the electrode surface of the core group 2.

[0040] As for the housing 1, the housing 1 defines a plurality of pin support members 12, and the plurality of pin support members 12 are arranged in one-to-one correspondence with the plurality of first pins 31 and the plurality of second pins 41 to support the plurality of first pins 31 and the plurality of second pins 41. The first pins 31 and the second pins 41 are usually fixed to the counterpart by welding or screws, and the arrangement of the pin support members 12 can facilitate the support of the first pins 31 and the second pins 41, thereby effectively preventing the first pins 31 and the second pins 41 from deforming when connected to the counterpart. In addition, threaded holes can be arranged on the support member to facilitate the counterpart to be locked on the support member 12 by screws.

[0041] For filling the housing 1, the gap of the housing 1 is filled with filler 7 to fill the open part of the housing 1 flat. It can be understood that filling the gap of the housing 1 with filler 7 can facilitate the position of the busbar, the core group 2 and the insulating member 5 in the cavity 11 to form a fixed state, thereby ensuring a stable connection between the components and further ensuring the performance of the capacitor. The filler can be a resin.

[0042] For the installation of the capacitor, a plurality of mounting holes 13 are provided on the outer edge of the housing 1. It can be understood that the installation of the entire capacitor can be facilitated by providing the mounting holes 13. The mounting holes 13 can be locked with screws.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0048] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A capacitor with insulation positioning, characterized in that, include: Shell, core group, first busbar, second busbar, insulating parts and positioning parts; The housing defines a cavity for mounting the core assembly; The core group has a first electrode surface and a second electrode surface; The first busbar is connected to the first electrode surface to lead an electrode out of the cavity; The second busbar is connected to the second electrode surface to lead another electrode out of the cavity; The insulating member is suitable for insulating the electrodes between the first busbar and the second busbar; The positioning member is arranged on the first busbar to jointly construct a positioning space, and the insulating member is inserted into the positioning space to position the insulating member.

2. The capacitor with insulation positioning as claimed in claim 1, characterized in that: The insulating member comprises an isolating portion and a positioning portion, wherein the isolating portion is suitable for isolating and insulating the first busbar from the second busbar, and the positioning portion is suitable for being inserted into the positioning space.

3. The capacitor with insulation positioning as claimed in claim 1, characterized in that: The positioning member is integrally formed with the first busbar, and a portion where the positioning member is formed is hollowed out.

4. The capacitor with insulation positioning as claimed in claim 1, characterized in that: The first busbar has a plurality of first pins and a plurality of first connecting portions, wherein the plurality of first connecting portions are suitable for connecting the first electrode surfaces to lead an electrode out of the cavity from the plurality of first pins, and the second busbar has a plurality of second pins and a plurality of second connecting portions, wherein the plurality of second connecting portions are suitable for connecting the second electrode surfaces to lead another electrode out of the cavity from the plurality of second pins.

5. The capacitor with insulation positioning as claimed in claim 4, characterized in that: The first connection portion and the second connection portion are both hollowed out.

6. The capacitor with insulation positioning as claimed in claim 4, characterized in that: The housing defines a plurality of pin support members, and the plurality of pin support members are arranged correspondingly to the plurality of first pins and the plurality of second pins in a one-to-one manner to support the plurality of first pins and the plurality of second pins.

7. The capacitor with insulation positioning as claimed in claim 1, characterized in that: The gaps in the shell are filled with fillers to make the openings of the shell filled and level.

8. The capacitor with insulation positioning as claimed in claim 1, characterized in that: The outer edge of the shell is provided with a plurality of mounting holes.

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