CN218827896U - Compact fuse connector - Google Patents

Abstract

The utility model discloses a compact fuse connector, including first power terminal and second power terminal, this first power terminal and second power terminal are arranged along this output direction front and back straight line, this first power terminal is close to this output position and directly connects electrically to the first output cable and the second output cable of this output position through Z type busbar one-to-two electricity; the second power terminal is far away from the output position and is electrically connected to the first fuse and the second fuse from two sides by two through the bus bar, and the first fuse and the second fuse are connected to a corresponding output cable of the output position in a folding mode through corresponding conductive terminals. The utility model discloses a compact fuse adopts the power terminal to indulge around and puts and cooperate the conducting wire design that adopts the bolt fastening completely, will be divided into two the tunnel with heavy current input all the way under the condition of less holding volume, for new energy automobile provides more compact and more stable safe distribution module.

Description

Compact fuse connector

Technical Field

The utility model relates to a new energy automobile's electrical apparatus connector technical field, concretely relates to compact fuse connector.

Background

In the fields of new energy automobiles such as hybrid power, electric power and the like, a power battery needs to provide electric energy for different functional modules of the automobile, such as an air conditioning module, a sound module and the like, through a high-voltage power distribution device. The high-voltage connector is required to be used for realizing the electric connection between the new energy automobile modules when the modules are ensured to work stably. Also for example, a hybrid vehicle may include a motor, a Main Control Unit (MCU) for controlling the motor, a high voltage battery for supplying power to the motor, etc., and use a high voltage connector as a means for electrically connecting functional modules.

In addition, the durable and reliable high-voltage connector also needs to have a good connection mode and a good locking mode so as to adapt to the severe vibration and impact environment and test the connection reliability of the high-voltage connector.

In a traditional high-voltage connector, a power input terminal generally adopts a transverse arrangement mode, a positive input end and a negative input end are input into a connector shell side by side, and an interlocking short-circuit device is arranged above or below the transverse arrangement power input terminal. In the design of the internal conductive path of the connector with the horizontal input, in order to output cables to power terminals with the horizontal input, high-voltage wiring is carried out on the premise of ensuring effective and safe electrical isolation distance in a limited space in a connector shell, or the connector shell can only be made large in size; the structure of the conductive connecting terminal is complex when the horizontal input is used for wiring, and the volume requirement of the connector shell is small, so that the positive and negative conductive terminals are poorly arranged and the safe electrical isolation distance is difficult to ensure.

Therefore, the existing internal conductive connection technology of the high-voltage connector still needs to be improved.

Disclosure of Invention

Based on this, for foretell technical problem in solving the conventional art, the utility model provides an adopt power terminal to indulge around and put and cooperate the conducting wire design that adopts the bolt fastening completely, will be divided into two the tunnel with heavy current input all the way under the less condition that holds the volume, provide the compact fuse connector of distribution module that more compact and more stable safety for new energy automobile.

The utility model relates to a compact fuse connector, including first power terminal and second power terminal to set up the output direction and the output position of cable, this first power terminal and second power terminal are arranged along this output direction straight line from beginning to end, this first power terminal is close to this output position and directly connects electrically to the first output cable and the second output cable of this output position through Z type busbar one-by-two electricity; the second power terminal is far away from the output position and is electrically connected to a first fuse and a second fuse from two sides by two through a bus bar, the first fuse is connected to a third output cable of the output position in a turn-back mode through a first conductive terminal, and the second fuse is connected to a fourth output cable of the output position in a turn-back mode through a second conductive terminal.

The utility model discloses a compact fuse connector, the power terminal is arranged along cable delivery direction front and back straight line, adopt simple straight line mode to carry out separated time and output to the power terminal that is close to delivery direction, connect the fuse as circuit safety insurance to the power terminal of keeping away from delivery direction, the output of fuse is turned back the bottom from the below and is accomplished the connection, positive negative pole connecting terminal simple structure and can avoid alternately, and can satisfy the safe electrical isolation distance of positive negative pole in finite space, and simultaneously, the whole design of power terminal and connecting terminal accomplishes the minimum with the connector volume under the prerequisite that satisfies the electrical design requirement, adaptable and the compactness requirement of improving the inside distribution of new energy automobile.

The utility model discloses a compact fuse connector, conductive terminal in the casing adopts the conductive circuit design of bolt fastening completely, satisfies the connection reliability requirement to high-pressure connector of most severe vibration, impact environment. And at the same time, secure electrical isolation distances.

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 these drawings without creative efforts.

Wherein:

fig. 1 is a schematic perspective exploded view of the compact fuse connector of the present invention;

fig. 2 is a schematic exploded view of the conductive copper bar of the compact fuse connector of the present invention;

fig. 3 is a perspective view of the conductive copper bar assembly of the compact fuse connector of the present invention;

FIG. 4 is a diagram of the lug structure of the conductive copper bar;

fig. 5 is a schematic structural view of an insulating housing of the compact fuse connector of the present invention;

FIG. 6 is a perspective view of the insulating housing;

fig. 7 is a three-dimensional structure diagram of the metal shell of the compact fuse connector of the present invention;

fig. 8 is a schematic diagram of the internal structure of the compact fuse connector of the present invention without the metal top cover and the fuse protective cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, an exploded view of the compact fuse connector of the present invention is shown; fig. 2 to 4 are exploded and assembled views of the copper conductive bar. Fig. 5 to 7 are structural views of an insulating case and a metal case.

The utility model discloses a compact fuse connector, first power terminal and second power terminal adopt to indulge and put the structure of arranging, and conductive terminal in the connector housing adopts the conducting wire design of bolt fastening completely. The overall design of the power terminal and the connecting terminal of the embodiment minimizes the volume of the connector on the premise of meeting the electrical design requirement; the fully bolted conductive trace design resists the effects of shock and impact. In the present embodiment and the following description, the first power terminal is a negative power terminal, and the second power terminal is a positive power terminal. It is to be understood that in another embodiment, the first power terminal is a positive power terminal and the second power terminal is a negative power terminal.

The first power terminal and the second power terminal of this embodiment are arranged along cable output direction straight line from beginning to end, adopt simple straight line mode to carry out separated time and output to the power terminal that is close to output direction, connect the fuse as circuit safety insurance to the power terminal who keeps away from output direction, the output of fuse is turned back the bottom from the below and is accomplished the connection, positive negative pole conductive terminal simple structure and can avoid alternately, optimize the space utilization who connects the casing inside and can satisfy the safe electrical isolation distance of positive negative pole under the less space condition.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

Referring to fig. 1, an exploded view of the compact fuse connector of the present invention is shown.

The connector comprises a metal shell 1, an insulating shell 4, a conductive copper bar 5, a fuse protective cover 49 and a metal upper cover 7.

The metal housing 1 is closed by the metal cover 7 to form a fully shielded device as a connector. Referring to fig. 7, a step 11 is disposed in the middle of the metal shell 1, the step divides the interior of the metal shell into an upper portion and a lower portion, and a mounting hole is opened on the step 11 to form a metal plug-in part 112 for introducing a power terminal. The side wall of the metal shell 1 is provided with a plurality of fastening grooves, such as the fastening groove 15, for fixing the insulating housing 4. The metal shell 1 is provided with four wire holes, such as wire hole 16, below the card slot 15.

Referring to fig. 5 and 6, the insulating housing 4 is divided into an upper layer and a lower layer corresponding to the step 11 of the metal housing, a zigzag insulating wall 411 and a square insulating wall 413 connected thereto are disposed at a middle position inside the insulating housing 4, and the insulating housing 4 is divided into a first insulating chamber and a second insulating chamber which are insulated from each other, wherein the first insulating chamber is defined by the zigzag insulating wall 411 and the square insulating wall 413. The first insulating chamber is provided with a first electrode position 414 on the upper layer, a branching step 415 connecting the upper layer and the lower layer, and a first pair of built-in nuts 421 and 422 on the lower layer. The first fuse chamber is provided with a third pair of built-in nuts 432, 434 which fix the two fuse clips; the second fuse chamber is provided with a fourth pair of built-in nuts 436, 438 that secure the fuse clips.

The second insulating cavity is mainly distributed on the upper layer and surrounds the first insulating cavity, and comprises a second electrode position 413, a first fuse cavity and a second fuse cavity which are positioned on the upper layer, and also comprises a pair of second pairs of built-in nuts 441 and 442 which are arranged on the lower layer.

The insulating housing 4 is provided with four wire holes, such as a wire hole 483, on the side wall corresponding to the output position of the cable, and at least one pair of fasteners, such as fasteners 482 and 481, is provided on the outer wall. The insulating housing 4 is provided at the bottom with an insulating plug part 416 for penetrating the metal plug part 112 of the metal shell 4.

Referring to fig. 1, a buckle on the outside of the insulating housing 4 is fastened to a buckle slot on the inner wall of the metal shell 4, such as a buckle 482 is fastened to the buckle slot 15, so as to mount the insulating housing 4 into the metal shell 1. The metal shell 4 forms a wire array clamping part 17 and a wire array protection cover 3 buckled on the wire array clamping part at the position of the wire guide hole 16. A plurality of hooks, such as the hook 171, protrude from the wire row holding portion 17, and a plurality of assembling grooves 31 are formed in the wire row protection cover 3, and the assembling grooves 31 are fastened with the hook 171 to lift and protect the four outgoing cables. A first sealing ring 35 is disposed between the wire row protective cover 3 and the wire row holding portion 17. The first to fourth outgoing cables C1 to C4 pass through the line gang holding part 17 and are led out from the line gang protection cover 3.

The end of the metal plug part 112 of the metal shell 1 is clamped with the plug end cover 2. A second sealing ring 29 is arranged between the plug end cap 2 and the metal plug part 112. A groove 18 is arranged around the top of the metal shell 1, and a third sealing ring 19 for sealing with the metal upper cover 7 is arranged in the groove 18. The plug end cap 3 is fitted with an interlocking short 21 and a plug shield 25. The plug shield plate 25 has a plurality of shield spring pieces 251 which can abut against the inner wall of the metal plug part 112. The inserting end cap 3 is provided with a plurality of elastic sheet holes 23 for the shielding elastic sheet 251 to extend out, after assembly, the shielding elastic sheet extends out from the corresponding elastic sheet hole and abuts against the inner wall of the metal inserting part 112, for example, the shielding elastic sheet 251 extends out from the corresponding elastic sheet hole 23 and abuts against the metal inserting part 112.

Referring to fig. 2 to fig. 3, the conductive copper bar 5 includes a first power terminal 511, a second power terminal 513, a Z-shaped bus bar 52, a bus bar 53, a first conductive terminal 57 and a second conductive terminal 58.

The orientation of the longitudinal arrangement of the power terminals is determined by the output direction of the cable, and the output direction of the cable is taken as the power terminal arrangement reference and the output position of the cable is taken as the position reference in the embodiment. The first power terminal 511 and the second power terminal 513 are arranged in a straight line along the output direction a, in which the first power terminal 511 is a negative power terminal and the second power terminal 513 is a positive power terminal. The first power terminal 511 is close to the output position and is electrically connected to the first output cable C1 and the second output cable C2 of the output position directly through the Z-shaped bus bar 52 in two-by-two. The second power terminal 513 is away from the output position and electrically connected to the first fuse 55 and the second fuse 56 from both sides by one-to-two by the bus bar 53, the first fuse 55 is folded back by the first conductive terminal 57 to be connected to the third output cable C3 of the output position, and the second fuse 56 is folded back by the second conductive terminal 58 to be connected to the fourth output cable C4 of the output position.

In this embodiment, all terminals in the insulating housing 4 are fixed by using solid bolts, and the design of the conductive circuit completely fixed by bolts can resist the vibration and impact interference when the new-energy vehicle is used. In order to achieve several bolt fastenings in the limited space of the insulating housing 4, each detail of the conductive terminals is designed to take advantage of the space and reduce the size of the connector.

Referring to fig. 2 and fig. 3, the first power terminal 511 is provided with a first screw hole, and the Z-shaped bus bar 52 includes a stepped body 520, a first shunt terminal 522 and a second shunt terminal 521. The middle parts of the two branch terminals are provided with positioning grooves, and the first branch terminal 522 and the second branch terminal 521 are respectively provided with bolt holes. The stepped body 520 vacates a mounting space for the first power terminal 511 below. The body 520 is provided with a bolt hole, and a first screw 514 passes through the bolt hole and is matched with the first screw hole to fix the first power terminal 511 and the body 520.

The second power terminal 513 is provided with a second screw hole, and the bus bar 53 is provided with three bolt holes for respectively bolt-fixing the first fuse clip 531, the second power terminal 513 and the second fuse clip 535. A second screw is inserted through the bolt hole in the middle of the bus bar 53 and fitted into the second screw hole to fix the second power terminal 513 to the bus bar 53.

A first fuse clip 531 is mounted on one side of the bus bar 53 by first bolt assemblies 532, 534 and a second fuse clip 535 is mounted on the other side of the bus bar 53 by second bolt assemblies 536, 532. The first conductive terminal 57 and the second conductive terminal 58 have the same structure. The first conductive terminal 57 includes a step 571 and a connecting end 572, the lower portion of which forms an assembling space for the nut 574, and the step 571 and the connecting end 572 are provided with bolt holes. The second conductive terminal 58 includes a step 581 having a lower portion forming a space for mounting the nut 584, and a connecting end 582, and bolt holes are formed in the step 581 and the connecting end 582. A third fuse clip 533 is mounted to the step 571 of the first conductive terminal 57 by a third bolt assembly 534 and a fourth fuse clip 537 is mounted to the step 581 of the second conductive terminal 58 by a fourth bolt assembly 538.

For removable fuse maintenance and replacement, the first fuse 55 is removably clamped between the first fuse clip 531 and the third fuse clip 533, and the second fuse 56 is removably clamped between the second fuse clip 535 and the fourth fuse clip 537.

Referring to fig. 4, the first branch terminal 521 is fixed to a first lug 591 by a fifth bolt element 524, and the first lug 591 is electrically connected to the first output cable C1; the second shunt terminal 522 is fixed to a second lug 592 by a sixth bolt assembly 523, and the second lug 592 is electrically connected to the second output cable C2. The connecting end 572 of the first conductive terminal 57 is fixed to the third lug 593 by the seventh bolt assembly 573, and the third lug 593 is electrically connected to the third output cable C3; the connecting end 582 of the second conductive terminal 58 is secured to a fourth lug 594 by an eighth bolt assembly 583, and the fourth lug 594 is electrically connected to the fourth output cable C4.

In the scheme of fully utilizing space to realize bolt fixing, the first lug to the fourth lugs 591-594 have the same structure. As shown in fig. 4, taking the fourth lug 594 as an example, the fourth lug 594 is Z-shaped and includes a lug step 5941 and a wire clamp 5942, which form a space below the nut 595. A pair of caulking pieces, a first caulking piece 5943 and a second caulking piece 5944 are provided on both sides of the wire guide 5942.

It is understood that the scope of the invention is not limited to the preferred embodiments of the invention, and that the invention is not limited to the disclosed embodiments.

Claims (10)

1. A compact fuse connector comprising a first power terminal (511) and a second power terminal (513), and providing an output direction and an output position of a cable, characterized in that the first power terminal and the second power terminal are arranged straight back and forth along the output direction, the first power terminal (511) is close to the output position and is electrically connected to a first output cable (C1) and a second output cable (C2) of the output position directly by one-to-two through a Z-type bus bar (52); the second power terminal (513) is distant from the output position and electrically connected to a first fuse (55) which is folded back by a first conductive terminal (57) to a third output cable (C3) of the output position and a second fuse (56) which is folded back by a second conductive terminal (58) to a fourth output cable (C4) of the output position from both sides by one bus bar (53).

2. The compact fuse connector of claim 1, wherein the first power terminal (511) is provided with a first screw hole, the Z-shaped bus bar (52) includes a stepped body (520) having a terminal fitting space formed thereunder, a first shunt terminal (521) and a second shunt terminal (522) to which the first power terminal is fixed by a first electrode screw; the second power terminal is provided with a second screw hole, the bus bar is provided with three bolt holes, and a second electrode screw penetrates through the bolt hole in the middle of the bus bar and is matched with the second screw hole to fix the second power terminal (513) and the bus bar (53).

3. The compact fuse connector of claim 2, characterized in that a first fuse clip (531) is mounted on one side of the bus bar (53) by a first bolt assembly, and a second fuse clip (535) is mounted on the other side of the bus bar (53) by a second bolt assembly; the first conductive terminal (57) and the second conductive terminal (58) respectively comprise abdicating steps (571, 581) and connecting ends (572, 582) which form a nut assembling space below, and bolt holes are formed in the abdicating steps; the third fuse clip (533) is mounted on the yielding step (571) of the first conductive terminal (57) through a third bolt assembly, and the fourth fuse clip (537) is mounted on the yielding step (581) of the second conductive terminal (58) through a fourth bolt assembly.

4. The compact fuse connector of claim 3, characterized in that the first fuse (55) is removably clamped between the first fuse clip (531) and the third fuse clip (533), and the second fuse (56) is removably clamped between the second fuse clip (535) and the fourth fuse clip (537).

5. The compact fuse connector of claim 4, characterized in that the first shunt terminal (521) is fixed with a first lug (591) by a fifth bolt assembly, the first lug being electrically connected with the first output cable (C1); the second tap terminal (522) is fixed with a second lug (592) electrically connected to the second output cable (C2) by a sixth bolt assembly; the connecting end (572) of the first conductive terminal (57) is fixed with a third lug (593) through a seventh bolt assembly, and the third lug is electrically connected with the third output cable (C3); the connecting end (582) of the second conductive terminal (58) is fixed with a fourth lug (594) through an eighth bolt assembly, and the fourth lug is electrically connected with the fourth output cable (C4).

6. The compact fuse connector of claim 5, wherein the first to fourth lugs are identical in structure, each lug is Z-shaped and includes a lug step below which a nut fitting space is formed, and a wire clamp on both sides of which a pair of rivet pieces are provided.

7. A compact fuse connector according to any one of claims 1-6, characterized by further comprising an insulating housing (4), the insulating housing (4) being divided into an upper layer (E) and a lower layer (F), the interior of the insulating housing being divided into a first insulating chamber and a second insulating chamber by an insulating wall, the first insulating chamber being provided therein with a first electrode site (414) located in the upper layer, a branching step (423) connecting the upper and lower layers, and a first pair of built-in nuts (421, 422) located in the lower layer.

8. The compact fuse connector of claim 7, wherein the second insulation chamber is disposed primarily in an upper layer and surrounds the first insulation chamber, wherein a second electrode site (413), the first fuse chamber and the second fuse chamber are disposed in the upper layer, and wherein a second pair of built-in nuts (441, 442) are disposed in the lower layer.

9. A compact fuse connector according to claim 7, characterized by further comprising a metal housing (1), the insulating housing (4) being provided with four wire holes in a side wall of the output position and at least one pair of snaps (481, 482) in an outer wall, the inner wall of the metal housing (1) being provided with a pair of mating snap grooves corresponding to the pair of snaps for mounting the insulating housing into the metal housing; the metal shell (1) is provided with a wire row clamping part (17) and a wire row protective cover (3) buckled on the wire row clamping part corresponding to the wire guide hole, and a first sealing ring (35) is arranged between the wire row clamping part and the wire row protective cover; the first to fourth output cables pass through the line bank clamping portion (17) and are led out from the line bank protection cover (3).

10. The compact fuse connector of claim 9, wherein the metal housing (1) is formed with a plug portion (112), the end of the plug portion (112) is clamped with a plug end cap (2), a second sealing ring (29) is disposed between the plug end cap (2) and the plug portion (112), the plug end cap (2) is mounted with an interlocking short-circuit device (21) and a plug shielding plate (25), and the plug shielding plate is formed with a plurality of shielding spring pieces (251) abutting against the inner wall of the plug portion.

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