CN110931989A - High-voltage high-current connecting device - Google Patents
High-voltage high-current connecting device Download PDFInfo
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- CN110931989A CN110931989A CN201911407220.5A CN201911407220A CN110931989A CN 110931989 A CN110931989 A CN 110931989A CN 201911407220 A CN201911407220 A CN 201911407220A CN 110931989 A CN110931989 A CN 110931989A
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- connector
- current connection
- connection according
- shell
- 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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
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Abstract
The invention relates to the technical field of high-voltage electric energy transmission, in particular to a high-voltage large-current connecting device, which comprises a connector, a connecting piece and a connecting piece, wherein the connector is provided with a through groove; the conductor is inserted into the through groove; the lid, match the connector, and cover the conductor, compare with prior art: the conductor is inserted into the through groove of the connector, and then the cover body is fixedly connected with the connector according to a preset position.
Description
Technical Field
The invention relates to the technical field of high-voltage electric energy transmission, in particular to a high-voltage large-current connecting device.
Background
With the rapid development of energy storage and photovoltaic at home and abroad, the voltage of an energy storage and photovoltaic system is generally between 48 and 1500VDC, in recent years, the product design of most mainstream equipment and energy storage battery manufacturers reaches 1500VDC, and the maximum current reaches 300A or more. At present, the mainstream power connectors are three types of wall-through quick-plug type power connectors, including a conductor copper part and a plastic-coated wiring bolt, and a conductor copper part and a plastic insulation shell assembled buckle connecting structure, wherein the wall-through quick-plug type power connectors have the main defects that: the metal conductor has no forced and reliable fixed locking structure, if the current level is high, the used wire harness is thick and short, the stress of the connecting part is overlarge due to the processing error of the wire rod in two-point connection, the inserting part is eccentric, the contact area is too small, the temperature rise is high, and the system safety is influenced; the structure design is complex, the processing difficulty is high, and the cost is very high; the conductor structural part and the insulation structural part are generally connected in an integral injection molding or buckling mode, and once one part fails, the whole group is scrapped; the energy storage type connector requires large current, the used wire is thick, the plug and the socket are of a plug-in structure, and under the condition that the wire is short and needs to be bent, the connecting part has stress, so that the butt joint part of the plug and the socket is eccentric, the contact area is insufficient, and the temperature rise is large; the connector conductor is generally machined and formed in a cylindrical structure, the contact area between an external copper bar or wire compression joint circular ring wiring terminal and the connector conductor is small, and the temperature rise is high. Its main shortcoming of current copper spare package is moulded and its major defect of assembled buckle connection structure has: a large amount of machining is needed for manufacturing the copper conductor, and the requirement on precision is high; the plastic shell for insulation has high product precision requirement due to the fact that a conductor copper part is installed inside the plastic shell. The high precision requirements of the conductor copper part and the plastic shell mean that the processing difficulty is high, the processing time is long, and the cost of the connector is high; the conductor structural part and the insulation structural part are generally connected in an integral injection molding or buckling mode, and once one part fails, the whole group is scrapped; the connector conductor is generally machined and formed in a cylindrical structure, the contact area between an external copper bar or wire compression joint circular ring wiring terminal and the connector conductor is small, and the temperature rise is high. Most of rated voltages of the three high-voltage connectors on the market are 1000VDC, and the three high-voltage connectors cannot be applied to 1500V high-voltage occasions.
Disclosure of Invention
In view of the above technical problems, the present invention provides a high voltage and high current connection device, which comprises,
a connector provided with a through groove;
the conductor is inserted into the through groove;
and the cover body is matched with the connector and covers the conductor.
Preferably, the high-voltage high-current connection device described above, wherein: the connector further includes:
a base plate;
the first shell, the second shell, the third shell and the fourth shell form the through groove;
a connecting through hole for matching with the fixing device is arranged on the first shell.
Preferably, the high-voltage high-current connection device described above, wherein: the connector further includes:
the first connecting body is arranged at one end part of the foundation plate and is vertical to the foundation plate;
and the second connecting body is parallel to the first connecting body and is arranged at the other end part of the foundation plate, wherein the first connecting body and the second connecting body are connected with the cover body in a matching way.
Preferably, the high-voltage high-current connection device described above, wherein: the connector still includes, a pair of strutting arrangement, set up perpendicularly on the foundatin plate, and with first casing is perpendicular.
Preferably, the high-voltage high-current connection device described above, wherein: and a through hole is formed in the foundation plate and positioned in the middle of the supporting device.
Preferably, the high-voltage high-current connection device described above, wherein: and a fixing bulge is arranged on the first connecting body and/or the second connecting body.
Preferably, the high-voltage high-current connection device described above, wherein: and connecting bulges are arranged in the extending directions of the first connecting body and the second connecting body.
Preferably, the high-voltage high-current connection device described above, wherein: further comprising:
a pair of connection ears, connect the ear perpendicular to first casing, and set up in the extending direction of base plate.
Preferably, the high-voltage high-current connection device described above, wherein: the cover body is formed by an open cuboid, and the open position of the cuboid is matched with the connector.
Preferably, the high-voltage high-current connection device described above, wherein: the distance from the connecting through hole to the end part of the first shell, far away from the connecting through hole, is not less than 17.8 millimeters, and a plurality of grooves are formed in the connector.
Compared with the prior art: the conductor is inserted into the through groove of the connector, and then the cover body is fixedly connected with the connector according to a preset position.
Drawings
Fig. 1 is a schematic structural diagram of a high-voltage high-current connection device in an embodiment of the invention;
fig. 2 is a schematic structural diagram of a high-voltage high-current connection device in an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As shown in fig. 1, a high voltage high current connection device, comprising,
a connector 1 provided with a through groove 100; the connector may be a plastic connector.
A conductor 2 inserted into the through groove 100; the conductor may be an L-shaped copper bar, or may be in other shapes, and only needs to be inserted into the through groove 100. When the high-current connecting device is used in 1500V occasions, only the conductor needs to be replaced, and the conductor matched with 1500V is inserted into the through groove. And in the same way, when the high-current connecting device is used under the conditions of 1000V and small rated current, the requirement can be met by changing the material or the thickness of the conductor without replacing other accessories.
The conductor is formed by the L-shaped copper bar, the contact area of the surface of the circular ring terminal pressed by the external copper bar or wire is large, the contact resistance is small, the temperature rise is small in the using process, and the use is safer.
A cover 3 that fits the connector 100 and covers the conductor 2. The cover body is an insulating cover body.
In the specific application process, firstly, the conductor 2 is inserted into the through groove 100 of the connector 1, and then the cover body 3 is fixedly connected with the connector 1 according to the preset position, so that the installation mode has the advantages of low requirement on assembly tolerance of each part assembly, low processing cost and flexible installation.
As a further preferred embodiment, the high-voltage high-current connecting device described above, wherein: the connector 1 further includes:
a base plate 110;
a first housing 111, a second housing (not shown), a third housing (not shown) and a fourth housing (not shown) disposed on the base plate 110, wherein the first housing 111, the second housing, the third housing and the fourth housing form the through slot 100;
a connecting through hole 112 for matching with a fixing device is disposed on the first housing 111. Illustratively, when the fixing device is a screw, the connecting through hole 112 may be a round hole matching the screw, and the screw passes through the connecting through hole 112 to fix the conductor 2 so that the conductor 2 is fixed inside the through slot 100. When the fixing device is a clip, the connecting through hole 112 may be a slot matching the clip.
As a further preferred embodiment, the high-voltage high-current connecting device described above, wherein: the connector 1 further includes:
a first connecting body 113 disposed at one end of the base plate 110 and perpendicular to the base plate 110;
and a second connecting body 114 parallel to the first connecting body 113 and disposed at the other end of the base plate 110, wherein the first connecting body 113 and the second connecting body 114 are connected to the cover 3 in a matching manner. Further, fixing protrusions 1131(1141) are disposed in the extending direction of the first connecting body 113 and the second connecting body 114. The cover 3 is provided with a connecting through hole 301(302) matching with the fixing protrusion 1131(1141), and the fixing protrusion 1131(1141) is inserted into the connecting through hole 301 (401).
As a further preferred embodiment, the high-voltage high-current connecting device described above, wherein: the connector 1 further comprises the feature that,
and a pair of supporting devices 115 vertically disposed at both ends of the base plate 110 and perpendicular to the first housing 111. Further, a reinforcing rib may be additionally provided between the pair of supporting devices 115.
As a further preferred embodiment, the high-voltage high-current connecting device described above, wherein: and a through hole is formed in the foundation plate and positioned in the middle of the supporting device. When the conductor 2 is in an L-shaped structure, a through hole matched with the through hole is formed in the L-shaped structure, when the L-shaped conductor is inserted into the through groove, the through hole is matched with the through hole, and a bolt penetrates through the through hole and the through hole respectively to further fix the conductor and the connector.
As a further preferred embodiment, the high-voltage high-current connecting device described above, wherein: a connecting protrusion 116 is disposed in the direction extending outward from the first connecting body and the second connecting body, a connecting fastening hole 303 matching the connecting protrusion 116 is disposed in the cover body 3, and the connecting fastening hole 303 is engaged with the connecting protrusion 116 to further fix the cover body to the connector 1.
As a further preferred embodiment, the high-voltage high-current connecting device described above, wherein: further comprising:
a pair of connecting ears 117, the connecting ears 117 being perpendicular to the first housing 111 and being disposed in the extending direction of the base plate 110. The connecting ear 117 may further have a plurality of through holes for fixing the high-voltage and high-current connecting device to other components to transmit high voltage and high current.
As a further preferred embodiment, the high-voltage high-current connecting device described above, wherein: the cover body 3 is formed of an open rectangular parallelepiped provided with reinforcing ribs on a predetermined side surface, and the open position of the rectangular parallelepiped matches the connector. Further, be provided with the strengthening rib on the lid, can increase its creepage distance under the unchangeable prerequisite of product overall dimension, satisfy that pollution level becomes high under the high-altitude high salt environment, creepage distance requires bigger requirement.
Preferably, the high-voltage high-current connection device described above, wherein: the distance from the connecting through hole 112 to the end of the first shell far away from the connecting through hole is not less than 17.8 mm, the connector is provided with a plurality of grooves, and the grooves can be arranged at the end and the side of the connector. The electrical clearance between the conductor and other adjacent electrodes or a grounding part without insulation or an exposed metal part is not less than 17.8 mm, and the creepage distance is not less than 30.5 mm. The larger this distance is, the larger the electrical gap and the creepage distance can be formed. The rated current is within 100-400A, the current carrying capacity of the conductor is determined by the sectional area of the conductor, in the prior art, the width (25mm) of the conductor is required to be basically consistent, the sectional area is determined by the thickness (400A,5 m; 300A,4 mm; 200A,3 mm; 100A:2.5mm) of the conductor, and the plastic parts of the plastic parts have almost consistent sizes due to the problems of insulation, pressure resistance, strength and the fact that the electric gap between the conductor and other adjacent electrodes or an uninsulated grounding part or an exposed metal part is not less than 17.8 mm, and the creepage distance is not less than 30.5mm, so that a new die is not needed to be opened for manufacturing products. Due to the characteristic, the cost difference of the connectors in different grades is very small under the condition that the rated current is 100-400A, and under the condition that the amount of the product in the early stage of development is small, one connector can be used in a unified mode, so that the research and development time and the cost are saved.
Example two
The present invention further provides a high voltage and high current connection device as shown in fig. 2, which comprises a connector having a through groove 200; the connector may be a plastic connector.
A conductor inserted into the through groove 200; a cover body that mates with the connector 200 and covers the conductors. The cover body is an insulating cover body.
The connector further includes:
a base plate 220;
a first housing 211, a second housing, a third housing and a fourth housing disposed on the base plate 220, wherein the first housing 211, the second housing, the third housing and the fourth housing form the through slot 200; a connecting through hole 222 for matching with a fixing device is disposed on the first housing 211. The connector further includes:
a first connection body 213 disposed at one end of the base plate 220 and perpendicular to the base plate 220;
and a second connecting body 214 parallel to the first connecting body 213 and disposed at the other end of the base plate 220, wherein the first connecting body 213 and the second connecting body 214 are connected to the cover 3 in a matching manner.
As a further preferred embodiment, the high-voltage high-current connecting device described above, wherein: a connecting protrusion 216 is disposed in the direction extending outward from the first connecting body and the second connecting body.
As a further preferred embodiment, the high-voltage high-current connecting device described above, wherein: the cover body 23 is formed of an open rectangular parallelepiped provided with a reinforcing rib on a predetermined side surface, and the open position of the rectangular parallelepiped matches the connector. Be provided with on the cuboid and connect ear 240, it is provided with the matching to connect on the ear 240 the earhole 403 of connector, in earhole 403 matches under the state of connecting protrusion 216, through the fixed orifices interlude of an outside fixed equipment in connect the predetermined position on the ear 217 in order to realize fixed purpose.
Through the cooperation of external special handling instrument 5, make connector and lid cooperation under the relative atress state of handling instrument 5, otherwise, then can loosen lid and connector, handling instrument 5 is only external appurtenance, can unload after accomplishing the handling operation, and has professional to take care, further guarantees the risk that non-professional maloperation electrocuted.
Further, be provided with the strengthening rib on the lid, can increase its creepage distance under the unchangeable prerequisite of product overall dimension, satisfy that pollution level becomes high under the high-altitude high salt environment, creepage distance requires bigger requirement.
In addition, it should be noted that, when a high-voltage high-current connection device is actually applied, corresponding connection parts can be added to realize a further transmission branch.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Although various aspects of the invention are presented in the independent claims, other aspects of the invention comprise combinations of features from the described embodiments and/or the dependent claims with the features of the independent claims, and not solely the combinations explicitly presented in the claims.
It is noted herein that while the above describes example embodiments of the invention, these descriptions should not be viewed in a limiting sense. Rather, several variations and modifications are possible without departing from the scope of the invention as defined in the appended claims.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A high-voltage high-current connecting device is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a connector provided with a through groove;
the conductor is inserted into the through groove;
and the cover body is matched with the connector and covers the conductor.
2. A high voltage high current connection according to claim 1, wherein: the connector further includes:
a base plate;
the first shell, the second shell, the third shell and the fourth shell form the through groove;
a connecting through hole for matching with the fixing device is arranged on the first shell.
3. A high voltage high current connection according to claim 2, wherein: the connector further includes:
the first connecting body is arranged at one end part of the foundation plate and is vertical to the foundation plate;
and the second connecting body is parallel to the first connecting body and is arranged at the other end part of the foundation plate, wherein the first connecting body and the second connecting body are connected with the cover body in a matching way.
4. A high voltage high current connection according to claim 3, wherein: the connector further comprises a connector body having a plurality of openings,
and the pair of supporting devices are vertically arranged on the foundation plate and are vertical to the first shell.
5. A high voltage high current connection according to claim 3, wherein: and a through hole is formed in the foundation plate and positioned in the middle of the supporting device.
6. A high voltage high current connection according to claim 3, wherein: and a fixing bulge is arranged on the first connecting body and/or the second connecting body.
7. A high voltage high current connection according to claim 3, wherein: and connecting bulges are arranged in the extending directions of the first connecting body and the second connecting body.
8. A high voltage high current connection according to claim 2, wherein: further comprising:
a pair of connection ears, connect the ear perpendicular to first casing, and set up in the extending direction of base plate.
9. A high voltage high current connection according to claim 1, wherein: the cover body is formed by an open cuboid provided with a reinforcing rib on a predetermined side surface, the open position of the cuboid is matched with the connector,
a connecting buckle hole is formed in the cuboid and used for connecting the connector; alternatively, the first and second electrodes may be,
and a connecting ear part is arranged on the cuboid, and an ear hole matched with the connector is formed in the connecting ear part.
10. A high voltage high current connection according to claim 2, wherein: the distance from the connecting through hole to the end part of the first shell, far away from the connecting through hole, is not less than 17.8 millimeters, and a plurality of grooves are formed in the connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911407220.5A CN110931989A (en) | 2019-12-28 | 2019-12-28 | High-voltage high-current connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911407220.5A CN110931989A (en) | 2019-12-28 | 2019-12-28 | High-voltage high-current connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110931989A true CN110931989A (en) | 2020-03-27 |
Family
ID=69861561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911407220.5A Pending CN110931989A (en) | 2019-12-28 | 2019-12-28 | High-voltage high-current connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110931989A (en) |
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2019
- 2019-12-28 CN CN201911407220.5A patent/CN110931989A/en active Pending
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