CN111370893A - Junction box and electric automobile - Google Patents
Junction box and electric automobile Download PDFInfo
- Publication number
- CN111370893A CN111370893A CN202010299214.9A CN202010299214A CN111370893A CN 111370893 A CN111370893 A CN 111370893A CN 202010299214 A CN202010299214 A CN 202010299214A CN 111370893 A CN111370893 A CN 111370893A
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- Prior art keywords
- junction box
- cavity
- copper
- casing
- hole
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/521—Sealing between contact members and housing, e.g. sealing insert
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5213—Covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/6608—Structural association with built-in electrical component with built-in single component
- H01R13/6616—Structural association with built-in electrical component with built-in single component with resistor
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connection Or Junction Boxes (AREA)
Abstract
The invention discloses a junction box and an electric automobile, wherein the junction box comprises: the shell assembly is provided with an installation cavity and a communication cavity communicated with the installation cavity; the copper bar comprises a first connecting part and a second connecting part which are arranged at an included angle, the first connecting part is accommodated in the installation cavity, and the second connecting part is limited in the communicating cavity and extends out of the communicating cavity; the copper terminals are accommodated in the mounting cavity, each copper terminal is provided with a slot, and one end, far away from the slots, of each copper terminal is connected with the first connecting part, so that the copper terminals are arranged in parallel at intervals. The invention aims to provide the junction box which is beneficial to heat dissipation of cables and has good waterproof performance, the junction box effectively avoids the problem that the cables with large cross sections are difficult to bend, improves the current carrying capacity under the condition of reducing the cross sections of the cables, and is easy to wire.
Description
Technical Field
The invention relates to the technical field of electric automobile connectors, in particular to a junction box and an electric automobile using the same.
Background
At present, a junction box of an electric automobile is limited by a wire harness crimping process and the overall dimension, the current carrying capacity of the junction box is poor, and temperature rise control in the charging and discharging process is not facilitated. Meanwhile, the arrangement of the large-wire-diameter cable is not facilitated in the junction box, the cable is bent excessively to be not conducive to heat dissipation, and meanwhile the waterproof performance of the junction box can be influenced.
The above description is only for the purpose of aiding understanding of the technical solutions of the present application and does not represent an admission of prior art.
Disclosure of Invention
The invention mainly aims to provide a junction box and an electric automobile, and aims to provide the junction box which is favorable for cable heat dissipation and has good waterproof performance.
In order to achieve the above object, the junction box provided by the present invention is applied to an electric vehicle, and the junction box includes:
the shell assembly is provided with an installation cavity and a communication cavity communicated with the installation cavity;
the copper bar comprises a first connecting part and a second connecting part which are arranged at an included angle, the first connecting part is accommodated in the installation cavity, and the second connecting part is limited in the communicating cavity and extends out of the communicating cavity; and
the copper terminals are accommodated in the mounting cavity, each copper terminal is provided with a slot, and one end, far away from the slots, of each copper terminal is connected with the first connecting part, so that the copper terminals are arranged in parallel at intervals.
In an embodiment, the first connecting portion has a plurality of first connecting holes spaced apart from each other, a second connecting hole is formed at an end of each of the copper terminals away from the slot, and each of the copper terminals is connected to the first connecting portion by a first fastening member passing through the second connecting hole and the first connecting hole.
In an embodiment, a connection portion of the first connection portion and the second connection portion is in a smooth transition.
In an embodiment, each of the copper terminals includes a fixing portion and an inserting portion connected to each other, the inserting portion is provided with the inserting slot at an end opposite to the fixing portion, the fixing portion is provided with the second connecting hole, and an axial direction of the second connecting hole is perpendicular to a groove opening direction of the inserting slot.
In an embodiment, the housing assembly is further provided with a mounting groove adjacent to the communication cavity, the junction box further includes a thermistor, one end of the thermistor is accommodated and limited in the mounting groove, and the other end of the thermistor and one end of the second connecting portion extending out of the communication cavity are arranged in parallel.
In one embodiment, the housing assembly comprises:
the shell is provided with a containing cavity, a first communication port and a plurality of second communication ports, wherein the first communication ports and the plurality of second communication ports are communicated with the containing cavity; and
the insulating casing holds and is spacing in hold the intracavity, the insulating casing is including being first casing and the second casing that the contained angle set up, first casing is kept away from the one end of second casing stretches out first intercommunication mouth, first casing is equipped with the intercommunication chamber, the second casing is equipped with the installation cavity, the second casing is kept away from the one end of first casing corresponds each the second intercommunication mouth is equipped with the via hole, each via hole and one the slot is just to setting up.
In an embodiment, a first opening communicated with the accommodating cavity is formed in one side, facing away from the first communication port, of the shell, a second opening is formed in the second shell corresponding to the first opening, the shell assembly further comprises an upper pressing cover and an insulating cover, the insulating cover is detachably covered on the second opening, and the upper pressing cover is detachably covered on the first opening.
In an embodiment, the housing assembly further includes a plurality of tail cap assemblies, each tail cap assembly is detachably disposed at one of the second communication ports, and each tail cap assembly is provided with a socket communicated with one of the second communication ports;
and/or the shell is provided with a limiting table at the first communication port, the outer wall of the first shell is provided with a limiting step, and the limiting step is in limiting butt joint with the limiting table;
and/or, the shell encircles the first opening and is equipped with the recess, casing assembly still includes the sealing washer, the sealing washer hold in the recess, and with go up the gland butt.
In an embodiment, the first housing is further provided with a mounting hole communicated with the communicating cavity, the second connecting portion is provided with a through hole corresponding to the mounting hole, and the second connecting portion passes through the mounting hole and the through hole through a second fastening member to be connected with the first housing.
The invention further provides an electric automobile which comprises an automobile main body and the junction box arranged on the automobile main body, wherein the junction box is the junction box.
According to the technical scheme, the installation cavity and the communication cavity which are mutually communicated are arranged in the shell assembly, the copper bar is arranged to form the first connecting part and the second connecting part which form included angles and are integrally connected, so that the first connecting part of the copper bar is accommodated in the installation cavity and is connected with the plurality of copper terminals, the second connecting part of the copper bar is limited in the communication cavity and extends out of the communication cavity to be connected with the cable, the problem that the cable in the junction box is bent is effectively solved, and the copper bar is simultaneously connected with the plurality of copper terminals, so that the current carrying capacity of the junction box is effectively improved; further, through holding a plurality of copper terminals in the installation cavity to keep away from the one end of slot with a plurality of copper terminals and all be connected with first connecting portion, make a plurality of copper terminals be parallelly just the interval setting, effectively reduced the space use of terminal box, thereby make things convenient for the slot and the big line footpath cable of a plurality of copper terminals to be connected, when improving waterproof performance, make the terminal box accomplish the big line footpath cable wiring, and be favorable to the heat dissipation of cable. The junction box provided by the invention not only saves the space in the carriage, but also avoids the problem of over-bending of the large-section cable caused by wiring operation, reduces the labor intensity of wiring operation, improves the waterproof performance and current-carrying capacity of the junction box, and is beneficial to wiring and cable heat dissipation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a junction box according to an embodiment of the invention;
FIG. 2 is an exploded view of the junction box according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a terminal block according to an embodiment of the present invention;
fig. 4 is a partially exploded view of a terminal block according to an embodiment of the invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Also, the meaning of "and/or" and/or "appearing throughout is meant to encompass three scenarios, exemplified by" A and/or B "including scenario A, or scenario B, or scenarios where both A and B are satisfied.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The present invention provides a junction box 100. It can be understood that the junction box 100 is applied to an electric vehicle, and a cable inside the electric vehicle is wired through the junction box 100, so that the electric vehicle is connected with other power supply components through the junction box 100, and the electric vehicle is powered on.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, in an embodiment of the invention, the junction box 100 includes a housing assembly 1, a copper bar 2 and a plurality of copper terminals 3, wherein the housing assembly 1 is provided with an installation cavity 1221 and a communication cavity 1211 communicating with the installation cavity 1221; the copper bar 2 comprises a first connecting part 21 and a second connecting part 22 which are arranged at an included angle, the first connecting part 21 is accommodated in the installation cavity 1221, and the second connecting part 22 is limited in the communicating cavity 1211 and extends out of the communicating cavity 1211; the plurality of copper terminals 3 are accommodated in the mounting cavity 1221, each copper terminal 3 is provided with a slot 321, and one end of each copper terminal 3 away from the slot 321 is connected to the first connecting portion 21, so that the plurality of copper terminals 3 are arranged in parallel and at intervals.
In the present embodiment, the junction box 100 is mounted on an electric vehicle, the junction box 100 is connected to a cable of the electric vehicle through the insertion slot 321 of the copper terminal 3, and the junction box 100 is connected to cables of other components through the second connection portion 22 of the copper bar 2, so as to energize the electric vehicle.
It can be understood that the housing assembly 1 is used for installing, fixing and protecting the copper bar 2 and the plurality of copper terminals 3, and the housing assembly 1 has an opening communicated with the installation cavity 1221 and an opening communicated with the communication cavity 1211, so that the connection of the junction box 100 with the cable of the electric vehicle through the openings is facilitated.
In this embodiment, the extending direction of the communicating cavity 1211 and the extending direction of the mounting cavity 1221 form an included angle, so that the first connecting portion 21 and the second connecting portion 22 of the copper bar 2 are installed in the mounting cavity 1221 and the communicating cavity 1211, and the included angle structure of the first connecting portion 21 and the second connecting portion 22 is utilized, thereby effectively avoiding the bending problem of the cable in the housing assembly 1. It can be understood that the communicating cavity 1211 and the mounting cavity 1221 in the housing assembly 1 may be defined by inner walls of the housing, or may be defined by other mounting structures in the housing assembly 1, so that the first connecting portion 21 and the second connecting portion 22 can be mounted in a limited manner.
It can be understood that, in order to connect the plurality of copper terminals 3 with the first connecting portion 21 of the copper bar 2, the plurality of copper terminals 3 are arranged in parallel and at intervals, and the first connecting portion 21 of the copper bar 2 has a wider dimension, so that the plurality of copper terminals 3 are arranged side by side and connected with the first connecting portion 21 at the same time.
In this embodiment, the extending direction of the first connecting portion 21 of the copper bar 2 is the included angle setting with the extending direction of the second connecting portion 22, so that the slots 321 of the plurality of copper terminals 3 are the included angle setting with the extending direction of the second connecting portion 22, so the second connecting portion 22 of the copper bar 2 and the slots 321 of the copper terminals 3 are connected with the cables in two directions, and thus excessive bending of the cables inside the electric automobile is effectively avoided.
Optionally, the extending direction of the first connecting portion 21 of the copper bar 2 is perpendicular to the extending direction of the second connecting portion 22, and the opening direction of the slots 321 of the plurality of copper terminals 3 is the same as the extending direction of the first connecting portion 21. The slots 321 of the copper terminals 3 are arranged in parallel in the opening direction, and the slots 321 of the copper terminals 3 are located on the same straight line.
According to the technical scheme, the junction box 100 is provided with the installation cavity 1221 and the communication cavity 1211 which are communicated with each other in the shell assembly 1, the copper bar 2 is provided with the first connecting part 21 and the second connecting part 22 which form an included angle and are integrally connected, so that the first connecting part 21 of the copper bar 2 is accommodated in the installation cavity 1221 and is connected with the plurality of copper terminals 3, the second connecting part 22 of the copper bar 2 is limited in the communication cavity 1211 and extends out of the communication cavity 1211 to be connected with the cable, the problem that the cable in the junction box 100 is bent is effectively solved, and the copper bar 2 is simultaneously connected with the plurality of copper terminals 3, so that the current carrying capacity of the junction box 100 is effectively improved; further, through holding a plurality of copper terminals 3 in installation cavity 1221, and all be connected with first connecting portion 21 with the one end that a plurality of copper terminals 3 kept away from slot 321, make a plurality of copper terminals 3 be parallelly just the interval sets up, effectively reduced terminal box 100's space and used, thereby make things convenient for slot 321 and the big line footpath cable of a plurality of copper terminals 3 to be connected, when improving waterproof performance, make terminal box 100 accomplish big line footpath cable wiring, and be favorable to the heat dissipation of cable. The junction box 100 provided by the invention not only saves the space in the carriage, but also avoids the problems of cable over-bending or difficult bending and difficult wiring of the cable with large cross section area caused by wiring operation, reduces the labor intensity of wiring operation, improves the waterproof performance and current-carrying capacity of the junction box, and is beneficial to wiring and cable heat dissipation.
In an embodiment, as shown in fig. 2, 3 and 4, the first connection portion 21 is provided with a plurality of first connection holes 211 arranged at intervals, one end of each copper terminal 3 away from the slot 321 is provided with a second connection hole 311, and each copper terminal 3 passes through the second connection hole 311 and the first connection hole 211 to be connected with the first connection portion 21 through the first fastening member 5.
In this embodiment, the first connecting portion 21 and the second connecting portion 22 of the copper bar 2 are plate-shaped structures, and the first connecting holes 211 are formed in the first connecting portion 21 at a plurality of intervals, and the second connecting holes 311 are formed in the copper terminals 3, so that each copper terminal 3 passes through the second connecting hole 311 and the first connecting hole 211 through the first fastener 5 to be connected with the first connecting portion 21, and the connection stability between the copper terminal 3 and the copper bar 2 is improved.
It will be appreciated that the first fastener 5 may alternatively be a screw, bolt or pin. The first connection hole 211 or the second connection hole 311 may be selected as a screw hole or a counterbore, etc. In order to further improve the connection stability between the copper terminal 3 and the first connection portion 21 of the copper bar 2, the end of the copper terminal 3 away from the slot 321 is a plate-shaped structure, so that the contact area between the copper terminal 3 and the first connection portion 21 can be increased. In this embodiment, first connecting hole 211 and second connecting hole 311 are the through-hole structure, and first fastener 5 includes the bolt and with bolt complex nut, so make the bolt pass first connecting hole 211 and second connecting hole 311 in proper order and be connected with the nut to lock copper terminal 3 and copper bar 2.
In this embodiment, in order to avoid the interference of the first fastening member 5 from other mounting structures on the inner wall of the housing assembly 1 when locking the copper terminal 3 and the copper bar 2, an avoiding hole is formed in the housing assembly 1 corresponding to the first fastening member 5. It is understood that, in other embodiments, the copper bar 2 and the copper terminal 3 may also be connected by other manners, such as a fixed connection manner, such as welding or interference fit, or a detachable connection manner, such as a snap connection, a plug fit, a threaded connection, and the like, which is not limited herein.
In one embodiment, as shown in fig. 2 and 3, the connection between the first connection portion 21 and the second connection portion 22 is rounded. It can be understood that such an arrangement is beneficial to improving the structural strength of the copper bar 2.
In an embodiment, as shown in fig. 2, 3 and 4, each copper terminal 3 includes a fixing portion 31 and an inserting portion 32 connected to each other, an inserting slot 321 is disposed at an end of the inserting portion 32 opposite to the fixing portion 31, the fixing portion 31 is disposed with a second connecting hole 311, and an axial direction of the second connecting hole 311 is perpendicular to a slot opening direction of the inserting slot 321.
In the present embodiment, the fixing portion 31 and the inserting portion 32 of the copper terminal 3 are integrally formed, so as to improve the structural strength of the copper terminal 3. The insertion portion 32 has a slot 321 at an end opposite to the fixing portion 31, so that the slot 321 can be utilized to realize a stable connection with a large wire diameter. Optionally, the insertion part 32 is a cylindrical structure with an opening at one end, so that the structure of the slot 321 is matched with the appearance of the cable, and the connection with the cable is facilitated.
It can be understood that, in order to improve the connection stability of the fixing portion 31 and the copper bar 2, the fixing portion 31 is of a flat sheet or plate structure, so as to effectively increase the contact area between the fixing portion 31 and the first connecting portion 21 of the copper bar 2. The second connection hole 311 penetrates the fixing portion 31, and an axial direction of the second connection hole 311 is perpendicular to a groove opening direction of the insertion groove 321. When the fixing portion 31 abuts against the first connecting portion 21, the second connecting hole 311 is opposite to the first connecting hole 211, so that the first fastening member 5 can be conveniently assembled.
In an embodiment, as shown in fig. 1, 2, 3 and 4, the housing assembly 1 further includes a mounting groove 1212 adjacent to the communication cavity 1211, and the terminal box 100 further includes a thermistor 4, one end of the thermistor 4 is received and limited in the mounting groove 1212, and the other end of the thermistor 4 is disposed in parallel with one end of the second connecting portion 22 extending out of the communication cavity 1211.
In this embodiment, the mounting groove 1212 is disposed at the position of the housing assembly 1 adjacent to the communicating cavity 1211, and the spacing thermistor 4 is mounted by using the mounting groove 1212, so that the thermistor 4 can be conveniently used for detecting the temperature of the second connecting portion 22 of the copper bar 2 in the communicating cavity 1211, thereby ensuring real-time monitoring of the temperature rise of the junction box 100 and avoiding the over-high temperature rise of the junction box 100.
In an embodiment, as shown in fig. 1, 2, 3 and 4, the housing assembly 1 includes an outer shell 11 and an insulating shell 12, wherein the outer shell 11 is provided with a cavity 111, and a first communication port 112 and a plurality of second communication ports 113 which are communicated with the cavity 111, and the plurality of second communication ports 113 are arranged at intervals; the insulating housing 12 is accommodated and limited in the accommodating cavity 111, the insulating housing 12 includes a first housing 121 and a second housing 122 which are arranged at an included angle, one end of the first housing 121, which is far away from the second housing 122, extends out of the first communicating port 112, the first housing 121 is provided with a communicating cavity 1211, the second housing 122 is provided with an installation cavity 1221, one end of the second housing 122, which is far away from the first housing 121, is provided with a via hole 1222 corresponding to each second communicating port 113, and each via hole 1222 is opposite to one slot 321.
In this embodiment, the shape structure of the housing 11 is L-shaped, so that the first communicating opening 112 and the second communicating opening 113 are located at two ends of the L-shaped housing 11, thereby ensuring that cables of different parts are connected with the second connecting portion 22 of the copper bar 2 and the slot 321 of the copper terminal 3 through the first communicating opening 112 and the second communicating opening 113. The housing 11 is used to protect the insulating case 12 as well as the copper bar 2 and the copper terminal 3. The housing 11 may be made of metal or plastic, but is not limited thereto.
It is understood that the outer shell 11 covers the outer wall of the insulating shell 12, and the insulating shell 12 is made of an insulating material, such as plastic. The first shell 121 and the second shell 122 of the insulating shell 12 are disposed at an angle, that is, the extending direction of the first shell 121 and the extending direction of the second shell 122 are disposed at an angle. Optionally, the extending direction of the first shell 121 is perpendicular to the extending direction of the second shell 122, and the first shell 121 and the second shell 122 of the insulating shell 12 are an integrally formed structure, so that the structural strength of the insulating shell 12 can be improved.
In this embodiment, the first casing 121 is provided with a communication cavity 1211, that is, the first casing 121 is provided with a mounting structure for mounting the second connecting portion 22 of the copper bar 2, and the mounting structure encloses the communication cavity 1211. It can be understood that the mounting structure portion of the first housing 121 is located in the mounting cavity 1221 of the second housing 122, and is parallel to the mounting platform, so that the first connecting portion 21 of the copper bar 2 is mounted and limited on the mounting platform. To avoid installation of the first fastener 5, the installation table begins with an avoidance hole.
In the present embodiment, as shown in fig. 3, the mounting cavity 1221 of the second housing 122 is surrounded by the housing outer wall of the second housing 122. In order to facilitate the cable to extend into the mounting cavity 1221 through the second communication port 113 and connect with the slot 321 of the copper terminal 3, the second housing 122 is provided with a through hole 1222 corresponding to the second communication port 113, such that the slot 321 of each copper terminal 3 is opposite to a through hole 1222 and a second communication port 113.
In an embodiment, as shown in fig. 2, 3 and 4, a first opening 114 communicating with the cavity 111 is formed on a side of the outer shell 11 facing away from the first communication port 112, a second opening 1223 is formed on the second shell 122 corresponding to the first opening 114, the shell assembly 1 further includes an upper cover 13 and an insulating cover 14, the insulating cover 14 is detachably covered on the second opening 1223, and the upper cover 13 is detachably covered on the first opening 114.
It will be appreciated that the first opening 114 and the second opening 1223 are disposed in opposing relation, and that the first opening 114 and the second opening 1223 are similarly sized and configured. The provision of the first opening 114 and the second opening 1223 facilitates the housing assembly 1 of the junction box 100 to mount the copper bar 2 and the copper terminal 3 through the first opening 114 and the second opening 1223.
In this embodiment, the upper cover 13 and the insulating cover 14 may be separately provided, so that they can be easily disassembled. Of course, the upper gland 13 and the insulating cover 14 can also be arranged into an integral structure, so that the first opening 114 and the second opening 1223 can be covered simultaneously, the structural strength of the upper gland 13 and the insulating cover 14 is improved, the processing and production of the shell assembly 1 are facilitated, and the waterproof and sealing performance of the shell assembly 1 is improved.
It will be appreciated that the insulating cap 14 serves to close and seal the second opening 1223 and the upper gland 13 serves to close and seal the first opening 114. In this embodiment, the insulating cover 14 and the second housing 122 may be detachably connected by a snap connection, a plug fit, a screw connection, a pin connection, or a threaded connection, which is not limited herein. The upper gland 13 and the housing 11 may be detachably connected by a snap connection, a plug fit, a screw connection, a pin connection, or a threaded connection, which is not limited herein.
In one embodiment, as shown in fig. 1, 2, 3 and 4, the housing assembly 1 further includes a plurality of tail cap assemblies 15, each tail cap assembly 15 is detachably disposed at a second communication port 113, and each tail cap assembly 15 is provided with a socket communicating with a second communication port 113.
In this embodiment, the tail cap assembly 15 serves to protect and secure the copper terminal 3 while also serving to secure the cable. The tail cover assembly 15 is detachably covered on the second communication port 113, and the tail cover assembly 15 is provided with a socket corresponding to the second communication port 113.
As shown in fig. 2, 3 and 4, the tail cover assembly 15 includes a tail cap 151, a wire sealing body 152, a shielding ring 153 and a baffle 154, a boss is disposed in the second communicating opening 113, the shielding ring 153 is disposed in the second communicating opening 113 and is in limit abutment with the boss, the wire sealing body 152 partially extends into the second communicating opening 113, the baffle 154 is located between the wire sealing body 152 and the shielding ring 153, and the tail cap 151 is sleeved on the wire sealing body 152 and is connected to an outer wall of the second communicating opening 113.
It can be understood that the tail cap 151 is used for fixing the wire sealing body 152, the shielding ring 153 and the baffle 154 in the second communication port 113 of the housing 11, and the shielding ring 153 and the wire sealing body 152 are used for shielding and isolating the cable from directly contacting the housing 11. In this embodiment, the tail cap 151 and the housing 11 may be detachably connected by a snap connection, a plug fit, a screw connection, a pin connection, or a threaded connection, which is not limited herein.
It can be understood that, by disposing the baffle 154 and the wire sealing body 152 between the copper terminal 3 and the tail cap 151, the baffle 154 and the wire sealing body 152 can be utilized to further protect the copper terminal 3, and at the same time, the sealing performance between the tail cap 151 and the housing 11 is improved. In the present embodiment, the projection in the second communication port 113 is advantageous to avoid the baffle 154 from touching the copper terminal 3, thereby protecting the copper terminal 3.
In an embodiment, as shown in fig. 3, the housing 11 is provided with a limiting step 115 at the first communication port 112, the outer wall of the first casing 121 is provided with a limiting step 1213, and the limiting step 1213 is in limiting abutment with the limiting step 115.
It can be understood that, by arranging the limiting platform 115 at the first communication port 112 of the outer shell 11 and arranging the limiting step 1213 on the outer wall of the first casing 121 of the insulating shell 12, when the insulating shell 12 is installed in the accommodating cavity 111 of the outer shell 11, the limiting installation of the insulating shell 12 can be realized by using the limiting coordination of the limiting platform 115 and the limiting step 1213, and the installation stability of the outer shell 11 and the insulating shell 12 is improved.
In one embodiment, as shown in fig. 2, 3 and 4, housing 11 defines a groove 116 around first opening 114, and housing assembly 1 further includes a sealing ring 16, wherein sealing ring 16 is received in groove 116 and abuts upper gland 13.
It can be understood that the sealing performance between the housing 11 and the upper gland 13 is effectively improved by providing the sealing ring 16. By providing the groove 116 on the housing 11, the sealing ring 16 is mounted in a limited manner by the groove 116, thereby further improving the sealing effect of the upper gland 13 for sealing the first opening 114.
In an embodiment, as shown in fig. 2 and 3, the first housing 121 is further provided with a mounting hole 1214 communicating with the communication chamber 1211, the second connecting portion 22 is provided with a through hole 221 corresponding to the mounting hole 1214, and the second connecting portion 22 is connected with the first housing 121 by the second fastening member 6 passing through the mounting hole 1214 and the through hole 221.
In this embodiment, the mounting hole 1214 is formed in the insulating shell 12, and the through hole 221 is formed in the second connecting portion 22 of the copper bar 2, so that the second fastening member 6 can be used to pass through the mounting hole 1214 and the through hole 221, and the second connecting portion 22 is connected to the first housing 121, thereby improving the connection stability between the copper bar 2 and the insulating shell 12.
It is understood that the extending direction of the mounting hole 1214 is perpendicular to the extending direction of the communication cavity 1211 (i.e., the extending direction of the second connecting portion 22). The second fastening member 6 may be a screw, a bolt, a pin, or the like. The mounting holes 1214 or through holes 221 may be selected to be threaded holes or counterbores, etc. In this embodiment, the through hole 221 is a through hole structure, the mounting hole 1214 is composed of two parts, the two parts of the mounting hole 1214 are respectively located at two opposite sides of the communicating cavity 1211, and the second fastening member 6 sequentially passes through the first part of the mounting hole 1214, the through hole 221, and the second part of the mounting hole 1214 to be in threaded connection with the inner wall of the second part of the mounting hole 1214, so as to lock the second connecting portion 22 of the copper bar 2 and the insulating shell 12.
In this embodiment, terminal box 100 adopts copper bar 2 to combine, utilizes copper bar 2 to be the first connecting portion 21 and the second connecting portion 22 that the contained angle set up to cooperate a plurality of copper terminals 3, effectively avoided buckling of cable, simplified terminal box 100's wiring operation. Meanwhile, the structure of the copper bar 2 is utilized to connect the copper terminals 3 in parallel, so that the current carrying capacity of the junction box 100 is effectively improved, the current carrying capacity of the junction box 100 is improved by 40%, and the flat structure of the copper bar 2 is utilized to facilitate the heat dissipation of the junction box 100 when the high current is carried. Further, the shell assembly 1 is provided with the upper pressing cover 13 and the insulating cover 14 in an integrated structure, so that the first opening 114 of the shell 11 and the second opening 1223 of the insulating shell 12 are conveniently passed through, the installation of the copper bar 2 and the copper terminal 3 is realized, and the assembly efficiency is improved. Meanwhile, by using the slot 321 structure of the copper terminal 3, when the junction box 100 is assembled with a cable, the assembly can be carried out without disassembling the tail cover assembly 15, and the assembly efficiency is further improved. Through the combination of the tail cover assembly 15 and the copper terminal 3, the wiring body 152 of the terminal box 100 is effectively prevented from being biased by a cable after wiring, so that the overall waterproof grade of the terminal box 100 is improved, and the protection grade of the terminal box 100 reaches IP68 grade. The junction box 100 provided by the invention not only improves the current carrying capacity by 40%, but also has the advantages of excellent heat dissipation, low temperature rise, easiness in wiring, capability of reaching the IP68 waterproof grade and simplicity in assembly operation.
In this embodiment, when the terminal box 100 is assembled, the first connecting portion 21 of the copper bar 2 and the plurality of copper terminals 3 are firstly locked by the first fastening members 5, the second connecting portion 22 of the copper bar 2 is assembled in the communicating cavity 1211 of the insulating shell 12 in a limiting manner, and the second connecting portion 22 of the copper bar 2 is locked on the insulating shell 12 by the second fastening members 6. The insulation shell 12, the copper bar 2 and the copper terminal 3 which are assembled into a whole are arranged in the containing cavity 111 of the shell 11, and the thermistor 4 is arranged in the mounting groove 1212 of the insulation shell 12 extending out of one end of the first communication port 112 of the shell 11. The sealing ring 16 is installed in the groove 116 of the housing 11 adjacent to the first opening 114, the insulating cover 14 is sealed at the second opening 1223 of the insulating housing 12, and the upper gland 13 is pressed against the first opening 114 of the housing 11 and abuts against the sealing ring 116. Then, the shielding ring 153, the baffle 154, the wire sealing body 152 and the tail cap 151 of the tail cover assembly 15 are sequentially installed at the second communication port 113 of the housing 11, and at this time, the cable passes through the socket of the tail cover assembly 15 and the second communication port 113 to be inserted into the slot 321 of the copper terminal 3, so that the assembly of the junction box 100 can be completed.
The invention further provides an electric vehicle, which comprises a vehicle main body and the junction box 100 arranged on the vehicle main body, wherein the specific structure of the junction box 100 refers to the foregoing embodiments, and the electric vehicle adopts all technical solutions of all the foregoing embodiments, so that at least all the beneficial effects brought by the technical solutions of the foregoing embodiments are achieved, and details are not repeated herein.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A junction box applied to an electric vehicle, characterized in that the junction box comprises:
the shell assembly is provided with an installation cavity and a communication cavity communicated with the installation cavity;
the copper bar comprises a first connecting part and a second connecting part which are arranged at an included angle, the first connecting part is accommodated in the installation cavity, and the second connecting part is limited in the communicating cavity and extends out of the communicating cavity; and
the copper terminals are accommodated in the mounting cavity, each copper terminal is provided with a slot, and one end, far away from the slots, of each copper terminal is connected with the first connecting part, so that the copper terminals are arranged in parallel at intervals.
2. The connector of claim 1, wherein the first connecting portion has a plurality of first connecting holes spaced apart from each other, a second connecting hole is formed at an end of each of the copper terminals away from the slot, and each of the copper terminals is connected to the first connecting portion by a first fastening member passing through the second connecting hole and the first connecting hole.
3. The junction box of claim 2, wherein a junction of the first connection portion and the second connection portion is rounded.
4. The connector of claim 2, wherein each of the copper terminals includes a fixing portion and an inserting portion connected to each other, the inserting portion is provided with the inserting groove at an end facing away from the fixing portion, the fixing portion is provided with the second connecting hole, and an axial direction of the second connecting hole is perpendicular to a groove opening direction of the inserting groove.
5. The junction box according to any one of claims 1 to 4, wherein a mounting groove is further formed in the housing assembly adjacent to the communication chamber, the junction box further comprises a thermistor, one end of the thermistor is accommodated and limited in the mounting groove, and the other end of the thermistor is arranged in parallel with one end of the second connecting portion extending out of the communication chamber.
6. The junction box of any one of claims 1 to 4, wherein the housing assembly comprises:
the shell is provided with a containing cavity, a first communication port and a plurality of second communication ports, wherein the first communication ports and the plurality of second communication ports are communicated with the containing cavity; and
the insulating casing holds and is spacing in hold the intracavity, the insulating casing is including being first casing and the second casing that the contained angle set up, first casing is kept away from the one end of second casing stretches out first intercommunication mouth, first casing is equipped with the intercommunication chamber, the second casing is equipped with the installation cavity, the second casing is kept away from the one end of first casing corresponds each the second intercommunication mouth is equipped with the via hole, each via hole and one the slot is just to setting up.
7. The junction box according to claim 6, wherein a first opening communicating with the receiving cavity is formed in a side of the housing facing away from the first communication port, a second opening corresponding to the first opening is formed in the second housing, the housing assembly further comprises an upper cover and an insulating cover, the insulating cover is detachably covered on the second opening, and the upper cover is detachably covered on the first opening.
8. The connector of claim 7, wherein said housing assembly further comprises a plurality of tail cap assemblies, each of said tail cap assemblies being removably disposed at one of said second communication ports, each of said tail cap assemblies being provided with a socket for communicating with one of said second communication ports;
and/or the shell is provided with a limiting table at the first communication port, the outer wall of the first shell is provided with a limiting step, and the limiting step is in limiting butt joint with the limiting table;
and/or, the shell encircles the first opening and is equipped with the recess, casing assembly still includes the sealing washer, the sealing washer hold in the recess, and with go up the gland butt.
9. The junction box according to claim 7, wherein the first housing is further provided with a mounting hole communicating with the communication chamber, the second connecting portion is provided with a through hole corresponding to the mounting hole, and the second connecting portion is connected to the first housing by a second fastening member passing through the mounting hole and the through hole.
10. An electric vehicle, characterized by comprising a vehicle body and a junction box provided to the vehicle body, the junction box being the junction box according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010299214.9A CN111370893B (en) | 2020-04-15 | 2020-04-15 | Junction box and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010299214.9A CN111370893B (en) | 2020-04-15 | 2020-04-15 | Junction box and electric automobile |
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| Publication Number | Publication Date |
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| CN111370893A true CN111370893A (en) | 2020-07-03 |
| CN111370893B CN111370893B (en) | 2024-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010299214.9A Active CN111370893B (en) | 2020-04-15 | 2020-04-15 | Junction box and electric automobile |
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| CN (1) | CN111370893B (en) |
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| CN114267988A (en) * | 2021-11-29 | 2022-04-01 | 中航光电科技股份有限公司 | Detachable heavy current deep water sealed cable subassembly |
| CN115347389A (en) * | 2021-05-12 | 2022-11-15 | 安波福技术有限公司 | High Power Splice Electrical Connectors with Cooling Features |
| CN119009559A (en) * | 2024-03-19 | 2024-11-22 | 日照浪非花文旅发展有限公司 | Photovoltaic module cable connecting device |
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| CN106450833A (en) * | 2016-11-08 | 2017-02-22 | 四川永贵科技有限公司 | Multi-core angle connector for motor and motor controller |
| CN208078308U (en) * | 2018-02-09 | 2018-11-09 | 安费诺精密连接器(深圳)有限公司 | A kind of plug and connector |
| CN211858953U (en) * | 2020-04-15 | 2020-11-03 | 深圳市沃尔新能源电气科技股份有限公司 | Junction box and electric automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204538332U (en) * | 2015-02-13 | 2015-08-05 | 深圳巴斯巴科技发展有限公司 | A kind of novel high-tension connector that is flexible coupling |
| CN106450833A (en) * | 2016-11-08 | 2017-02-22 | 四川永贵科技有限公司 | Multi-core angle connector for motor and motor controller |
| CN208078308U (en) * | 2018-02-09 | 2018-11-09 | 安费诺精密连接器(深圳)有限公司 | A kind of plug and connector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115347389A (en) * | 2021-05-12 | 2022-11-15 | 安波福技术有限公司 | High Power Splice Electrical Connectors with Cooling Features |
| CN114267988A (en) * | 2021-11-29 | 2022-04-01 | 中航光电科技股份有限公司 | Detachable heavy current deep water sealed cable subassembly |
| CN114267988B (en) * | 2021-11-29 | 2023-09-26 | 中航光电科技股份有限公司 | Detachable heavy current deep water sealed cable assembly |
| CN119009559A (en) * | 2024-03-19 | 2024-11-22 | 日照浪非花文旅发展有限公司 | Photovoltaic module cable connecting device |
| CN119009559B (en) * | 2024-03-19 | 2025-05-09 | 江苏天电新能源科技有限公司 | Photovoltaic module cable connecting device |
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|---|---|
| CN111370893B (en) | 2024-07-19 |
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