CN108233733B - Integrated direct-current busbar wire holder assembly for inverter - Google Patents
Integrated direct-current busbar wire holder assembly for inverter Download PDFInfo
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- CN108233733B CN108233733B CN201810145329.5A CN201810145329A CN108233733B CN 108233733 B CN108233733 B CN 108233733B CN 201810145329 A CN201810145329 A CN 201810145329A CN 108233733 B CN108233733 B CN 108233733B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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Abstract
The invention provides an integrated direct-current busbar wire holder assembly for an inverter, which comprises a wire holder, and a positive busbar, a negative busbar, a Y capacitor grounding busbar, a left Y capacitor and a right Y capacitor which are arranged on the wire holder, wherein the positive busbar, the negative busbar, the Y capacitor grounding busbar and the wire holder are integrally formed by injection molding, and an interlocking structure is formed at the upper end of a main body part of the wire holder. The invention integrates the direct current bus bar, the wire holder, the Y capacitor, the interlocking structure and the like, effectively reduces the number of parts and the matching connection among the parts, has good assembly performance and can effectively reduce the volume.
Description
Technical Field
The invention relates to a wire holder assembly, in particular to an integrated direct-current busbar wire holder assembly for an inverter.
Background
The inverter is a core component of an electric automobile, and the design of the direct-current busbar and the wiring base greatly affects the volume, assembly and the like of the inverter. The DC busbar plays an important role in connecting the capacitor and the DC connector, and the wire holder plays a role in providing a mounting point for the DC connector. At present, a plurality of inverters are designed separately, the assembly performance is poor, other functions are fewer, such as providing direct current for a high-voltage air conditioner and a Y capacitor, providing an interlocking structure and the like, the integration level is not high, and the occupied size of the inverter is larger.
Disclosure of Invention
In view of the above technical problems, an object of the present invention is to provide an integrated dc bus bar and wire holder assembly for an inverter, which has high integration level and is convenient to assemble, and can effectively utilize the space of the inverter and reduce the volume.
The technical scheme adopted by the invention is as follows:
the embodiment of the invention provides an integrated direct-current bus bar wire holder assembly for an inverter, which comprises: the capacitor comprises a wire holder and a positive busbar, a negative busbar, a Y capacitor grounding busbar, a left Y capacitor and a right Y capacitor which are arranged on the wire holder, wherein the positive busbar, the negative busbar, the Y capacitor grounding busbar and the wire holder are integrally formed by injection molding; the wire holder comprises a main body part, and a bottom part and a side part which are connected with the main body part, wherein an interlocking structure is formed at the upper end of the main body part, the interlocking structure comprises a first interlocking structure, a second interlocking structure and a third interlocking structure, the left Y capacitor and the right Y capacitor are arranged at the lower end of the main body part side by side, and the bottom part is used for being connected with a shell body for arranging the wire holder and comprises a first connecting hole, a second connecting hole and a third connecting hole which are connected with the shell body; the positive busbar comprises a first connecting end, a second connecting end and a third connecting end, wherein the first connecting end is positioned on the side part of the wire holder and is used for being connected with a positive busbar of a direct-current bus capacitor, the second connecting end is positioned at the upper end of the main body part and is used for being connected with a positive busbar of a direct-current connector, and the third connecting end is positioned at the lower end of the main body part and is used for being connected with a positive wiring harness of a high-voltage air-conditioning connector and the right Y capacitor; the negative busbar and the positive busbar are arranged side by side and comprise a first connecting end, a second connecting end, a third connecting end and a fourth connecting end, the first connecting end of the negative busbar is positioned on the side of the wire holder and is used for being connected with a negative busbar of a direct-current bus capacitor, the second connecting end of the negative busbar is positioned at the upper end of the main body part and is used for being connected with the negative busbar of a direct-current connector, the third connecting end of the negative busbar is positioned at the upper end of the main body part and is used for being connected with an air-conditioning fuse, and the fourth connecting end of the negative busbar is positioned at the lower end of the main body part and is used for being connected with the left Y; the Y capacitor grounding busbar and the bottom of the wire holder are integrally formed by injection molding and are respectively connected with the left Y capacitor, the right Y capacitor and the shell; the first interlocking structure is used for being connected with a high-voltage direct-current input interlocking connector, the second interlocking structure is used for being connected with a junction box cover interlocking connector, and the third interlocking structure is used for being connected with a high-voltage air conditioner interlocking connector.
Optionally, a third connection end of the positive busbar is connected with the right Y capacitor in a welded manner, a third connection end of the negative busbar is connected with the left Y capacitor in a welded manner, and the Y capacitor grounding busbar is connected with the left Y capacitor and the right Y capacitor in a welded manner respectively.
Optionally, a second connecting end of the positive busbar is provided with a connecting hole, a third connecting end of the positive busbar is provided with a connecting hole and a fork-shaped structure, a main body of the wire holder is provided with two concave holes corresponding to the second connecting end of the positive busbar and the connecting hole of the third connecting end respectively, and the two concave holes are matched with the connecting holes of the second connecting end and the third connecting end of the positive busbar respectively to form a positive busbar connecting hole connected with the positive busbar of the dc connector and a positive wire harness connecting hole connected with a positive wire harness of the high-voltage air-conditioning connector; and a pressure rivet nut is placed in the positive busbar connecting hole and the positive wire harness connecting hole, and the fork-shaped structure is used for being welded with a pin needle of the right Y capacitor.
Optionally, a second connecting end and a third connecting end of the negative electrode busbar are respectively provided with a connecting hole, a fourth connecting end of the negative electrode busbar is formed with a fork-shaped structure, a main body part of the wire holder is provided with two concave holes corresponding to the connecting holes of the second connecting end and the third connecting end of the negative electrode busbar, and the two concave holes are respectively matched with the connecting holes of the second connecting end and the third connecting end of the negative electrode busbar to form a negative electrode busbar connecting hole connected with the negative electrode busbar of the dc connector and a fuse connecting hole connected with the air-conditioning fuse; and a pressure riveting nut is placed in the negative electrode busbar connecting hole and the fuse connecting hole, and the fork-shaped structure is used for being welded with a pin needle of the left Y capacitor.
Optionally, female arranging of Y electric capacity ground connection includes the base member and the protruding formation is in two forked type structures of base member lateral part, the base member with the integrative formation of moulding plastics in bottom of wire holder, two forked type structures are used for respectively left side Y electric capacity with the pin welding of right side Y electric capacity, the base member be formed with at the tip with the concentric through-hole that sets up of first connecting hole.
Optionally, the wire holder further comprises a round nut and a bushing, the round nut and the bushing are integrally formed by injection molding with the wire holder, the round nut is formed at the upper end of the main body part and is used for being connected with the air-conditioning fuse and a negative wire harness of a high-voltage air-conditioning connector, and the bushing is protrudingly formed on two end faces of the second connecting hole and the third connecting hole.
Optionally, a placement groove for placing the left Y capacitor and the right Y capacitor is formed on a lower end of the main body portion of the wire holder, and the left Y capacitor and the right Y capacitor are respectively fixed in the placement groove through an adhesive.
Optionally, the first interlocking structure is an opening formed in the up-down direction of the main body part, the first interlocking structure is connected with the high-voltage direct-current input interlocking connector through a fastening structure, and the high-voltage direct-current input interlocking connector is formed with two through holes; the second interlocking structure and the third interlocking structure are formed on the main body part in a protruding mode, and two through holes formed in the front-back direction of the main body part are formed in the main body part respectively; one end of each of the two through holes of the high-voltage direct-current input interlocking connector is connected with the rear end of one through hole of the second interlocking structure and the rear end of one through hole of the third interlocking structure through an interlocking wire harness, the other end of each of the two through holes of the second interlocking structure and the rear end of the other through hole of the third interlocking structure are connected with the connector of the PCB through the interlocking wire harness, and the front ends of the two through holes of the second interlocking structure and the front ends of the two through holes of the third interlocking structure are connected with the interlocking connector of the junction box cover and the interlocking connector of the high-voltage air conditioner.
Optionally, the upper end of the main body portion of the wire holder is further formed with a catch groove and a catch for fixing the interlocking wire harness.
The integrated direct-current bus bar wire holder assembly for the inverter provided by the embodiment of the invention integrates the direct-current bus bar, the wire holder, the Y capacitor, the interlocking structure and the like, effectively reduces the number of parts and the matching connection among the parts, has good assembly performance and can effectively reduce the volume. In addition, the direct-current busbar and the wire holder are integrated, so that errors caused by assembly are reduced, and the high-voltage direct-current connector is easier to install; the wire holder is integrated with the interlocking structure, so that additional connectors are reduced, the cost is reduced, and the assembly is facilitated.
Drawings
Fig. 1 is an outline view of an integrated dc bus bar and socket assembly for an inverter according to an embodiment of the present invention;
fig. 2 to 5 are schematic diagrams illustrating connection between an integrated dc bus bar wire holder assembly for an inverter and other components according to an embodiment of the present invention.
(description of reference numerals)
1. A wire holder, 2, a positive electrode bus bar, 3, a negative electrode bus bar, 4, a Y capacitor grounding bus bar,
5. left Y capacitor, 6 right Y capacitor, 7 bushing, 8 round nut, 9M 4 rivet nut,
10, M6 clinch nut, 11, first interlocking structure, 12, second interlocking structure, 13, third interlocking structure,
14. a retaining groove and a fastener 15.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
Fig. 1 is an outline view of an integrated dc bus bar and socket assembly for an inverter according to an embodiment of the present invention; fig. 2 to 5 are schematic diagrams illustrating connection between an integrated dc bus bar wire holder assembly for an inverter and other components according to an embodiment of the present invention.
As shown in fig. 1 to 5, an integrated dc bus bar wire holder assembly for an inverter according to an embodiment of the present invention includes: wire holder 1 is in with the setting positive busbar 2 on the wire holder, female 3, female 4, left Y electric capacity 5, the right Y electric capacity 6 of female arranging of negative pole, wherein, the positive busbar 2 female 3 of negative pole female arranging 4 of Y electric capacity ground connection with 1 integrative formation of moulding plastics of wire holder.
Hereinafter, the respective structures of the wire holder assembly according to the embodiment of the present invention will be described with reference to the drawings.
The wire holder 1 of the present invention is formed by integrally injection molding plastic, as shown in fig. 1 to 5, the wire holder 1 of the present invention is integrally arranged in an L shape, and includes a main body portion, and a bottom portion and a side portion connected to the main body portion, wherein an interlock structure is formed at an upper end of the main body portion, the interlock structure includes a first interlock structure 11, a second interlock structure 12, and a third interlock structure 13, the left Y capacitor 5 and the right Y capacitor 6 are arranged side by side at a lower end of the main body portion, and the bottom portion is used for being connected to a housing in which the wire holder is installed, and includes a first connection hole, a second connection hole, and a third connection hole connected to the housing. Thus, the wire holder 1 can be fixedly connected to the housing through the first connecting hole, the second connecting hole and the third connecting hole.
In the embodiment of the invention, the first interlocking structure 11 is used for connecting with a high-voltage direct-current input interlocking connector, the second interlocking structure 12 is used for connecting with a junction box cover interlocking connector, and the third interlocking structure 13 is used for connecting with a high-voltage air conditioner interlocking connector. Specifically, as shown in fig. 3 to 5, the first interlocking structure 11 is an opening formed in the up-down direction of the main body portion, and the first interlocking structure 11 is connected to the high-voltage dc input interlocking connector through a snap structure, and the high-voltage dc input interlocking connector is formed with two through holes. In one example, the snap structure may include a snap groove formed in the opening into which the HVDC input interlock connector is inserted and a protrusion formed on the HVDC input interlock connector to achieve a secure connection therebetween by the interfitting of the protrusion and the snap groove. The second interlocking structure 12 and the third interlocking structure 13 are formed on the main body in a protruding manner, and two through holes formed along the front-back direction of the main body are formed respectively; as shown in fig. 4 and 5, one end of each of the two through holes of the high-voltage dc input interlock connector is connected to the rear end of one through hole of the second interlock structure 12 and the third interlock structure 13 through an interlock harness, and the other end of each of the two through holes of the second interlock structure 12 and the third interlock structure 13 is connected to the high-voltage dc input connector, the rear end of the other through hole of the second interlock structure 12 and the third interlock structure 13 is connected to the connector of the PCB board through an interlock harness, and the front ends of the two through holes of the second interlock structure 12 and the third interlock structure 13 are connected to the connector of the terminal box cover interlock connector and the high-voltage air conditioner interlock connector, respectively. In practical application, when a high-voltage direct-current input connector (not shown) is installed, the high-voltage direct-current input connector can be connected with two through holes of the high-voltage direct-current input interlocking connector through an interlocking pin, and the high-voltage air-conditioning interlocking connector is oppositely inserted into two through holes of the third interlocking structure 13 of the plastic wire holder; the interlocking connector of the junction box cover is fixed on the junction box cover, when the junction box cover is closed, the interlocking connector of the junction box cover is oppositely inserted into two through holes of the second interlocking structure 12 of the plastic junction box, and the interlocking loop is conducted. The interlocking mode provided by the embodiment of the invention has high safety, convenient assembly and high reliability.
Further, a catching groove 14 and a catch 15 for fixing the interlocking wire harness are formed at the upper end of the main body portion of the wire holder 1. The blocking groove 14 is used for receiving screw scraps caused by the installation of the alternating current connector, so that the scraps are prevented from falling onto a PCB (printed circuit board) and other electronic components, and the short circuit risk is reduced; meanwhile, the screw can be prevented from falling into the inverter assembly. The buckle 15 is used for fixing the interlocking wiring harness of the connector, and abrasion in the wiring harness vibration process is avoided.
In addition, a placement groove for placing the left Y capacitor 5 and the right Y capacitor 6 is formed on the lower end of the main body portion of the wire holder, and the left Y capacitor 5 and the right Y capacitor 6 are respectively fixed in the placement groove by glue. The arrangement groove can limit the Y capacitor and can prevent the overflow of the adhesive as an adhesive coating area.
As shown in fig. 2 and 3, the positive busbar 2 and the wire holder 1 are formed by injection molding, are arranged in an L shape, and may include a base portion, and a first connection end, a second connection end, and a third connection end connected to the base portion. The base body portion is arranged in an L shape and is injected into the wire holder, and the first connecting end, the second connecting end and the third connecting end are exposed out of the wire holder so as to be connected with corresponding components. The first connecting end can be formed by extending and bending upwards along the rear end of the base body part, is positioned on the side part of the wire holder 1 and is used for being connected with a positive busbar of a direct-current bus capacitor so as to transmit direct current to the direct-current bus capacitor, the second connecting end can be formed by extending upwards along the front end of the base body part and is positioned at the upper end of the main body part and is used for being connected with the positive busbar of the direct-current connector, and the third connecting end can be formed by extending and bending rightwards along the front end of the base body part and is positioned at the lower end of the main body part and is used for being connected with a positive wiring harness of a high-voltage air conditioner connector and. In one example, the third connection end of the positive busbar is welded to the right Y capacitor 6, so that screw connection can be reduced and assembly efficiency can be improved.
Specifically, a capacitor positive busbar connecting hole b connected with the positive busbar of the direct current busbar capacitor is formed at the first connecting end of the positive busbar 2, the second connecting end of the positive electrode bus bar 2 is provided with a connecting hole, the third connecting end of the positive electrode bus bar 2 is provided with a connecting hole and a fork-shaped structure, two concave holes corresponding to the connecting holes of the second connecting end and the third connecting end of the positive busbar respectively are formed on the main body part of the wire holder 1, as shown in fig. 1 to 3, the two recessed holes are formed at the upper and lower ends of the main body portion of the wire holder 1, the two concave holes are respectively matched with the connecting holes of the second connecting end and the third connecting end of the positive busbar to form a positive busbar connecting hole a connected with the positive busbar of the direct-current connector and a positive wire harness connecting hole e connected with a positive wire harness of the high-voltage air-conditioning connector; and a pressure riveting nut is placed in the positive busbar connecting hole and the positive wire harness connecting hole, and the fork-shaped structure is used for being welded with a pin needle of the right Y capacitor 6. In one example, an M6 rivet nut 10 is placed in the positive busbar connecting hole a, and an M4 rivet nut 9 is placed in the positive wire harness connecting hole e.
As shown in fig. 2 and 3, the negative busbar 3 is arranged side by side with the positive busbar 2, is formed by injection molding integrally with the wire holder 1, is L-shaped, and may include a base portion, and a first connection end, a second connection end, a third connection end, and a fourth connection end connected to the base portion. The base body portion is arranged in an L shape and is injected into the wire holder, and the first connecting end, the second connecting end, the third connecting end and the fourth connecting end are exposed on the wire holder so as to be connected with corresponding components. The rear end of the first connection end base body part of the negative busbar 3 extends upwards and is bent to form, the rear end is located on the side of the wire holder 1 and is used for being connected with a negative busbar of a direct-current bus capacitor so as to transmit direct current to the direct-current bus capacitor, the second connection end of the negative busbar can extend upwards along the front end of the base body part and is located at the upper end of the main body part and is used for being connected with a negative busbar of a direct-current connector, the third connection end of the negative busbar 3 extends rightwards along the second connection end and is located at the upper end of the main body part and is used for being connected with an air-conditioning fuse, and the fourth connection end of the negative busbar extends downwards along the front end of the base body part and is bent to form and is located at the lower end of the. In one example, the fourth connection end of the negative busbar is welded to the left Y capacitor 5, so that screw connection can be reduced, and assembly efficiency can be improved. In the present invention, the air conditioning fuse may be seated in a groove formed at the upper end of the main body portion of the wire holder 1.
Specifically, a capacitor connecting hole d connected with a negative busbar of a direct-current bus capacitor is formed at a first connecting end of the negative busbar 3, connecting holes are formed at a second connecting end and a third connecting end of the negative busbar 3 respectively, a fork-shaped structure is formed at a fourth connecting end of the negative busbar, two concave holes corresponding to the connecting holes of the second connecting end and the third connecting end of the negative busbar respectively are formed on a main body part of the wire holder 1, as shown in fig. 1 to 3, the two concave holes are formed at the upper end of the main body part of the wire holder 1 respectively, and the two concave holes are matched with the connecting holes of the second connecting end and the third connecting end of the negative busbar 3 respectively to form a negative busbar connecting hole c connected with the negative busbar of the direct-current connector and a fuse connecting hole f connected with the air-conditioning fuse; and a pressure riveting nut is placed in the negative electrode busbar connecting hole c and the fuse connecting hole f, and the fork-shaped structure is used for being welded with a pin needle of the left Y capacitor 5. In one example, M6 rivet pressing nuts 10 are placed in the negative busbar connecting holes c, and M4 rivet pressing nuts 9 are placed in the fuse connecting holes f.
Further, the wire holder assembly of the embodiment of the invention further comprises a round nut 8 and a bush 7 which are formed by injection molding with the wire holder 1, wherein the round nut 8 is formed at the upper end of the main body part of the wire holder and is used for being connected with the air-conditioning fuse and the negative wire harness of the high-voltage air-conditioning connector. Thus, as shown in fig. 3, the dc connector supplies power to the air conditioner through the positive busbar 2 and the negative busbar 3, and is connected with an air conditioner fuse in a loop to prevent the current from being too large to play a role of protection. The positive wire harness of the air conditioner connector is connected with the positive wire harness connecting hole e, the negative wire harness of the air conditioner connector is fixed with one end of the air conditioner fuse through the round nut 8, and the other end of the air conditioner fuse is connected with the fuse connecting hole f, so that the fuse is convenient to detach and replace at the installation position. The bush 7 is protrudingly formed on both end faces of the second connecting hole and the third connecting hole to prevent the plastic surface from being crushed when the bolt is tightened in the connecting process of fixing the wire holder to the housing.
As shown in fig. 1 and fig. 2, a Y capacitor grounding busbar 4 according to an embodiment of the present invention is formed by injection molding integrally with the bottom of a wire holder 1, and is used for being connected to the left Y capacitor 5, the right Y capacitor 6, and a housing for accommodating the wire holder, respectively. The Y-type capacitor grounding busbar 4 of the embodiment of the invention can comprise a base body and two fork-shaped structures which are formed on the side part of the base body in a protruding mode, the base body is formed at the bottom of the wire holder 1 in an injection molding mode, through holes which are concentrically arranged with the first connecting holes in the wire holder 1 are formed in the end part of the base body, in this way, the first connecting holes of the wire holder and the through holes of the Y-type capacitor grounding busbar 4 form grounding holes which are connected with a shell together, and therefore the connection between the Y-type capacitor grounding busbar 4 and the shell can be realized, and further Y-type. Therefore, the left Y capacitor 5 and the right Y capacitor 6 are respectively connected between the negative busbar 3, the positive busbar 2 and the ground, common mode interference can be inhibited, a filtering effect is achieved, and the electromagnetic compatibility of the inverter is better. Two fork-shaped structures formed by protruding on the side part of the base body are exposed at the bottom of the wire holder and are respectively used for being connected with pin pins of the left Y capacitor 5 and the right Y capacitor 6, and in one example, the two fork-shaped structures are respectively connected with the pin pins of the left Y capacitor 5 and the right Y capacitor 6 in a welding mode, so that screw connection can be reduced, and assembly efficiency is improved.
In summary, the integrated dc bus bar wire holder assembly for the inverter provided by the embodiment of the invention integrates the dc bus bar, the wire holder, the Y capacitor, the interlocking structure, and the like, effectively reduces the number of parts and the matching connection among the parts, has good assembly performance, and can effectively reduce the volume. The direct-current busbar and the wire holder are integrated, so that errors caused by assembly are reduced, and the high-voltage direct-current connector is easier to install; the direct-current bus bar and the Y capacitor are connected into a whole through welding, so that screw connection is reduced, and assembly efficiency is improved; the wire holder is integrated with the interlocking structure, so that additional connectors are reduced, the cost is reduced, and the assembly is facilitated.
It should be noted that the terms relating to directions, such as "rear end", "front end", "upper end", "lower end", "bottom", "upward", "rearward", "rightward", "forward", etc., shown in the present invention are made with reference to the directions shown in the drawings, and are only exemplary expressions, not limiting.
The above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a female connection terminal assembly of arranging of integrated form direct current for inverter which characterized in that includes: the capacitor comprises a wire holder and a positive busbar, a negative busbar, a Y capacitor grounding busbar, a left Y capacitor and a right Y capacitor which are arranged on the wire holder, wherein the positive busbar, the negative busbar, the Y capacitor grounding busbar and the wire holder are integrally formed by injection molding;
the wire holder comprises a main body part, and a bottom part and a side part which are connected with the main body part, wherein an interlocking structure is formed at the upper end of the main body part, the interlocking structure comprises a first interlocking structure, a second interlocking structure and a third interlocking structure, the left Y capacitor and the right Y capacitor are arranged at the lower end of the main body part side by side, and the bottom part is used for being connected with a shell body for arranging the wire holder and comprises a first connecting hole, a second connecting hole and a third connecting hole which are connected with the shell body;
the positive busbar comprises a first connecting end, a second connecting end and a third connecting end, wherein the first connecting end is positioned on the side part of the wire holder and is used for being connected with a positive busbar of a direct-current bus capacitor, the second connecting end is positioned at the upper end of the main body part and is used for being connected with a positive busbar of a direct-current connector, and the third connecting end is positioned at the lower end of the main body part and is used for being connected with a positive wiring harness of a high-voltage air-conditioning connector and the right Y capacitor;
the negative busbar and the positive busbar are arranged side by side and comprise a first connecting end, a second connecting end, a third connecting end and a fourth connecting end, the first connecting end of the negative busbar is positioned on the side of the wire holder and is used for being connected with a negative busbar of a direct-current bus capacitor, the second connecting end of the negative busbar is positioned at the upper end of the main body part and is used for being connected with the negative busbar of a direct-current connector, the third connecting end of the negative busbar is positioned at the upper end of the main body part and is used for being connected with an air-conditioning fuse, and the fourth connecting end of the negative busbar is positioned at the lower end of the main body part and is used for being connected with the left Y;
the Y capacitor grounding busbar and the bottom of the wire holder are integrally formed by injection molding and are respectively connected with the left Y capacitor, the right Y capacitor and the shell;
the first interlocking structure is used for being connected with a high-voltage direct-current input interlocking connector, the second interlocking structure is used for being connected with a junction box cover interlocking connector, and the third interlocking structure is used for being connected with a high-voltage air conditioner interlocking connector; the first interlocking structure is an opening formed in the upper direction and the lower direction of the main body part, the first interlocking structure is connected with the high-voltage direct-current input interlocking connector through a buckle structure, and two through holes are formed in the high-voltage direct-current input interlocking connector; the second interlocking structure and the third interlocking structure are formed on the main body part in a protruding mode, and two through holes formed in the front-back direction of the main body part are formed in the main body part respectively;
one end of each of the two through holes of the high-voltage direct-current input interlocking connector is connected with the rear end of one through hole of the second interlocking structure and the rear end of one through hole of the third interlocking structure through an interlocking wire harness, the other end of each of the two through holes of the second interlocking structure and the rear end of the other through hole of the third interlocking structure are connected with the connector of the PCB through the interlocking wire harness, and the front ends of the two through holes of the second interlocking structure and the front ends of the two through holes of the third interlocking structure are connected with the interlocking connector of the junction box cover and the interlocking connector of the high-voltage air conditioner;
the third connecting end of the positive busbar is connected with the right Y capacitor in a welded mode, the third connecting end of the negative busbar is connected with the left Y capacitor in a welded mode, and the Y capacitor grounding busbar is connected with the left Y capacitor and the right Y capacitor in a welded mode respectively.
2. The integrated direct-current busbar wire holder assembly for the inverter according to claim 1, wherein a connecting hole is formed at the second connecting end of the positive busbar, a connecting hole and a fork-shaped structure are formed at the third connecting end of the positive busbar, two concave holes corresponding to the connecting holes of the second connecting end and the third connecting end of the positive busbar respectively are formed on the main body part of the wire holder, and the two concave holes are matched with the connecting holes of the second connecting end and the third connecting end of the positive busbar respectively to form a positive busbar connecting hole connected with the positive busbar of the direct-current connector and a positive wire harness connecting hole connected with a positive wire harness of a high-voltage air conditioner connector;
and a pressure rivet nut is placed in the positive busbar connecting hole and the positive wire harness connecting hole, and the fork-shaped structure is used for being welded with a pin needle of the right Y capacitor.
3. The integrated direct-current busbar wire holder assembly for the inverter according to claim 1, wherein the second connecting end and the third connecting end of the negative busbar are respectively formed with a connecting hole, the fourth connecting end of the negative busbar is formed with a fork-shaped structure, the main body part of the wire holder is formed with two concave holes corresponding to the connecting holes of the second connecting end and the third connecting end of the negative busbar, and the two concave holes are respectively matched with the connecting holes of the second connecting end and the third connecting end of the negative busbar to form a negative busbar connecting hole connected with the negative busbar of the direct-current connector and a fuse connecting hole connected with the air-conditioning fuse;
and a pressure riveting nut is placed in the negative electrode busbar connecting hole and the fuse connecting hole, and the fork-shaped structure is used for being welded with a pin needle of the left Y capacitor.
4. The integrated dc busbar connection base assembly according to claim 1, wherein the Y-type capacitor grounding busbar includes a base and two fork-shaped structures protruding from a side of the base, the base is formed by injection molding with a bottom of the connection base, the two fork-shaped structures are respectively used for pin welding of the left Y-type capacitor and the right Y-type capacitor, and the base is formed with a through hole at an end concentric with the first connection hole.
5. The integrated dc bus bar wire holder assembly for the inverter according to claim 1, further comprising a round nut and a bushing integrally injection-molded with the wire holder, wherein the round nut is formed at an upper end of the main body for connecting with the air conditioning fuse and a negative wire harness of a high-voltage air conditioning connector, and the bushing is protrudingly formed on both end surfaces of the second connection hole and the third connection hole.
6. The integrated dc busbar wire holder assembly according to claim 1, wherein a placement groove for placing the left Y capacitor and the right Y capacitor is formed at a lower end of the main body of the wire holder, and the left Y capacitor and the right Y capacitor are fixed in the placement groove by adhesives, respectively.
7. The integrated dc busbar wire holder assembly according to claim 1, wherein a retaining groove and a clip for fixing the interlocking wire harness are further formed at an upper end of the main body of the wire holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145329.5A CN108233733B (en) | 2018-02-12 | 2018-02-12 | Integrated direct-current busbar wire holder assembly for inverter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145329.5A CN108233733B (en) | 2018-02-12 | 2018-02-12 | Integrated direct-current busbar wire holder assembly for inverter |
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| CN108233733A CN108233733A (en) | 2018-06-29 |
| CN108233733B true CN108233733B (en) | 2020-01-24 |
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| CN109861559A (en) * | 2019-02-28 | 2019-06-07 | 中国第一汽车股份有限公司 | A kind of integrated motor inverter assembly |
| CN110581656B (en) * | 2019-08-23 | 2021-03-09 | 重庆金康新能源汽车有限公司 | Inverter module of electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH09308267A (en) * | 1996-05-13 | 1997-11-28 | Nippon Soken Inc | Bus bar and capacitor assembling structure |
| JP3827158B2 (en) * | 2003-01-21 | 2006-09-27 | 株式会社デンソー | Inverter-integrated electric compressor with shunt resistor |
| JP4552513B2 (en) * | 2004-05-26 | 2010-09-29 | トヨタ自動車株式会社 | Power control unit and unit case thereof |
| CN202034891U (en) * | 2011-05-05 | 2011-11-09 | 艾默生网络能源有限公司 | Full-water-cooling power module |
| CN106655647A (en) * | 2016-11-28 | 2017-05-10 | 中国第汽车股份有限公司 | Inverter integrated into motor |
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