CN218677871U - Three-way distribution fuse connector - Google Patents

Abstract

The utility model discloses a three-way distribution fuse connector, which comprises a first power terminal and a second power terminal, wherein the first power terminal is electrically connected to first to third output cables from one to three parts at the bottom through a busbar; the second power terminal is electrically connected to a first fuse, a second fuse and a third fuse from the top through a bus bar in a one-to-three mode, the first fuse is connected to a fourth output cable in the middle through a first conducting strip ladder in a turn-back mode, the second fuse is connected to a fifth output cable in the middle through a second conducting strip ladder in a turn-back mode, and the third fuse is connected to a sixth output cable in the middle through a third conducting strip ladder in a turn-back mode. The utility model discloses a fuse divide into three routes with the input in finite space and is connected to corresponding fuse and safety and stability output, cooperates the conducting wire design that adopts the bolt fastening completely, provides more distribution module that more and the circuit retrencied more along separate routes for new energy automobile under small-size accommodation volume's prerequisite.

Description

Three-way distribution fuse connector

Technical Field

The utility model relates to a new energy automobile's electrical apparatus connector technical field, concretely relates to three routes distribution 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. Guarantee that each module steady operation need use the high voltage connector with the electric connection between the inside module of safe realization new energy automobile.

Traditional fuse high voltage connector generally includes high voltage input portion, and this high voltage input portion sets up anodal power terminal and negative pole power terminal, and anodal or negative pole power terminal one concatenates with the fuse to play overcurrent protection's effect to high voltage connector and the functional module of connecting, the safe operation of the circuit functional module of protection new energy automobile.

However, the conventional fuse connector does not perform extension and shunt of the power input terminal, and only outputs one path after fuses are connected in series. A plurality of fuse connectors are required to be used between a plurality of functional module modules and the battery in the new energy automobile to realize safe connection, the mounting space in the automobile is limited, the plurality of fuses not only occupy the mounting space, but also have electric potential safety hazards due to overstaffed and disordered circuit connection and limit the capacity of the battery module.

In addition, in the conventional high-voltage connector, the power input terminals are generally arranged in a horizontal manner, the connecting line of the positive input terminal and the negative input terminal is perpendicular to the direction of the output cable, and the positive input terminal and the negative input terminal are input into the connector housing side by side. According to the design of the conductive path of the connector with the horizontal input, when the power terminals with the horizontal input are subjected to cable output, high-voltage wiring is carried out on the premise that effective safe electrical isolation distance is guaranteed in a limited space in a connector shell, the same wiring space needs to be occupied by the same output of the parallel positive and negative terminals, and a larger internal volume is used. In addition, the structure of the conductive connecting terminal is complex when the horizontal input is used for wiring, and when the internal volume of the connector is small, the positive and negative conductive terminals are difficult to ensure the safe electrical isolation distance.

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 a under less internal volume restriction, divide into three routes with power input and be connected to corresponding fuse simultaneously and guarantee the safety and stability output, the cooperation adopts bolt fastening's conducting wire design completely simultaneously, provides more and the distribution module's that the circuit is retrencied three routes distribution fuse connector along separate routes for new energy automobile.

The utility model relates to a three routes distribution fuse connector, including first power terminal and second power terminal, this first power terminal is connected to first output cable, second output cable and third output cable through busbar from one minute three electricity in bottom; the second power terminal is electrically connected to a first fuse, a second fuse and a third fuse from the top through a bus bar in three by three, the first fuse is connected to a fourth output cable in the middle through a first conducting strip step in a turn-back mode, the second fuse is connected to a fifth output cable in the middle through a second conducting strip step in a turn-back mode, the third fuse is connected to a sixth output cable in the middle through a third conducting strip step in a turn-back mode, and the first output cable to the third output cable in the bottom and the fourth output cable to the sixth output cable in the middle are arranged in an insulation mode.

The utility model discloses a three routes distribution fuse connector is the three routes with power input along separate routes in finite space and is connected to the output of corresponding fuse safety and stability, provides more distribution module along separate routes and the circuit is retrencied more for new energy automobile under the inside less prerequisite of holding volume of connector.

The utility model discloses a three routes distribution fuse connector, first and second power terminal arranges around cable output direction, adopt simple straight line mode to carry out the separated time and lay the output cable from the bottom to the power terminal that is close to output position, connect the fuse as circuit safety insurance from the top to the power terminal who keeps away from output position, the output stairstepping of fuse turns back the middle part and connects the output cable, positive negative pole connecting terminal simple structure and can avoid the intersection of conducting path, guarantee simultaneously that satisfy the safe electrical isolation distance of positive negative pole in the finite space, and simultaneously, the overall design of power terminal and connecting terminal can accomplish the connector minimum under the prerequisite that satisfies the electrical design requirement, adaptable and the compactness requirement of the inside distribution of new energy automobile is improved.

The utility model discloses a three routes distribution fuse connector, conductive terminal in the casing adopts the conducting wire design of bolt fastening completely, satisfies the connection reliability requirement to high voltage connector of the vibration that is severer, 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 view of a back side three-dimensional structure of the three-way distribution fuse connector of the present invention;

fig. 2 is a schematic front perspective view of the three-way distribution fuse connector of the present invention;

fig. 3 is an exploded view of the three-way distribution fuse connector of the present invention;

FIG. 4 is a view of the metal shell and insulating housing shown in FIG. 3;

FIG. 5 is a cross-sectional view of the insulative housing taken along line Q-Q;

FIG. 6 is a cross-sectional view of the insulating housing taken along line P;

FIG. 7 is a perspective view of the insulating housing;

fig. 8 is an electrical structure diagram of the double row output conductive copper bar of the three-way distribution fuse connector of the present invention;

fig. 9 is a three-dimensional structure diagram of the conductive copper bar of the present invention;

fig. 10 is a side view of the conductive copper bar of the present invention;

figure 11 is a block diagram of the top of the three-way distribution fuse connector of the present invention showing the parallel fuses;

figure 12 is a cross-sectional view of the three-way distribution fuse connector of the present invention taken along the S-S section line;

figure 13 is the utility model discloses three routes distribution fuse connector's insulating fastener structure chart.

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 to 3, an overall structure and an exploded structure diagram of a three-way distribution fuse connector according to the present invention are shown; fig. 4 to 7 are specific structural views of the insulating housing 4 and the metal case 1 which are engaged with each other. Fig. 8 to 10 are exploded and assembled views of the copper conductive bar. Fig. 13 is a structural view of an insulating fastener.

The utility model discloses a three routes distribution fuse connector accomplishes one minute three electrically conductive distribution to power input in the connector of less volume and provides more distribution module more and the circuit is retrencied more along separate routes for new energy automobile.

The three-way distribution fuse connector includes a first power terminal and a second power terminal, the first power terminal being electrically connected to a first output cable, a second output cable, and a third output cable in a bottom-one-out electrical connection through a busbar; the second power terminal is electrically connected to a first fuse, a second fuse and a third fuse from the top by three by one through a bus bar, the first fuse is connected to a fourth output cable in the middle portion through a first conducting strip step in a foldback manner, the second fuse is connected to a fifth output cable in the middle portion through a second conducting strip step in a foldback manner, and the third fuse is connected to a sixth output cable in the middle portion through a third conducting strip step in a foldback manner.

The first power terminal and the second power terminal are arranged along the input direction in a high-low manner so as to correspond to the lower layer and the upper layer of the three-layer structure of the connector. In addition, the first power terminal and the second power terminal are arranged in a straight line along the output direction D2 of the cable, the first power terminal is close to the output position S of the cable, and the second power terminal A2 is far away from the output position S.

The overall design of the power terminals and connection terminals of the present embodiment minimizes the connector volume while meeting electrical design requirements. The conductive circuit design of the conductive copper bar completely fixed by the bolt can resist the interference of vibration 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 around, adopt simple straight line mode to carry out separated time and output to the power terminal that is close to output position S, connect the fuse as circuit safety insurance to the power terminal who keeps away from output direction, and the output stairstepping of fuse is turned back the middle part and is connected the output cable. The connector of the embodiment can be divided into three paths for power distribution, the one-to-three multi-path positive and negative conductive terminals are simple in structure and can avoid crossing, and the space utilization rate inside the connector shell is optimized to meet the safe electrical isolation distance of the positive and negative electrodes under the appropriate space condition.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

Referring to fig. 1 to 3, an overall structure and an exploded structure diagram of a three-way distribution fuse connector according to the present invention are shown.

The connector comprises a metal shell 1, an insulating shell 4, a first conductive copper bar 5, a second conductive copper bar 6, a fuse protective cover 49, a metal upper cover 12 and a secondary lock structure 8.

The metal housing 1 is closed by the metal cover 12 to form the housing of the connector and the fully shielded device.

Referring to fig. 4, a step surface is disposed in the middle of the metal shell 1, the step surface divides the interior of the metal shell into an upper portion and a lower portion, and a mounting hole is formed in the step surface and a metal plug-in part 112 is formed, the plug-in part is used for introducing a power terminal. The side wall of the metal shell 1 is opened with a plurality of fastening grooves for fixing the insulating housing 4, such as fastening grooves 16 for mounting the insulating housing 4 into the metal shell 1. The metal shell 1 is provided with wire holes in a double-row three-group manner below the buckle groove 16.

As shown in fig. 5 and 7, the insulating housing 4 includes an input portion M and a dividing portion N that divides the inside into an upper layer L3, a middle layer L2, and a lower layer L1 by a first insulating spacer 431 and a second insulating spacer 432. The input unit M includes a first electrode 411 at a lower position inside and a second electrode 412 at a higher position outside, two first-set nut fixing portions 451, 452 for connecting the fuse from one end are provided on both sides of the second electrode 412, and three second-set nut fixing portions 461, 462, 463 for connecting the fuse from the other end are provided on the second insulating partition 432.

The input portion M is provided with a first insulating vertical plate 441 and a second insulating vertical plate 442 to partition a fuse mounting space. The wire dividing portion N is provided with a third insulating vertical plate 443 and a fourth insulating vertical plate 444 which are arranged to intersect with the first insulating partition 431 and the second insulating partition 432, and at the same time, two rows of three inner wire holes are formed at the tail portion of the insulating housing 4, and the inner wire holes are aligned with the wire holes of the metal shell 1.

The insulating housing 4 is provided with at least one pair of snaps, such as an upper snap 481 and a lower snap 483, on an outer wall. The metal shell 1 has a corresponding snap fit, and the insulating housing 4 is mounted in the metal shell 1, for example, the snap fit 16 is fitted with the corresponding lower snap 483, and the upper snap fit is fitted with the corresponding upper snap 481 to fix and clamp the insulating housing 4 in the metal shell 1.

The insulating fastener 7 is detachably fastened between the input portion M and the dividing portion N, and a first insulating chamber is formed between the first electrode 411 and the lower layer L1 below the insulating fastener 7. A second insulation chamber is formed between the second electrode site 412, the middle layer L2 and the upper layer L3 above the insulation fastener 7. The insulating housing 4 is provided with three third sets of built-in nut fixing locations 421, 422, 423 for fixing the branched first electrodes in the first insulating chamber.

Referring to fig. 13, the insulating clip 7 includes a frame 71, an electrode isolation plate 72 and a mounting plate 73. The electrode isolation 72 extends from one side of the frame 71. The frame 71 is provided with a first side plate 74 and a second side plate 75 at two sides thereof, and the first side plate 74 is provided with a tenon 741. The second side plate 75 is also provided with a tenon 751. At least one reinforcing tenon 711 is disposed at one end of the frame body 71.

The mounting plate 73 is provided at the end of the electrode isolation plate 72 and includes a mounting insertion piece that is inserted into a slot provided in the input portion M of the insulating housing 4. The upper part of the frame body 71 comprises three fourth group built-in nut fixing positions 781, 782 and 783 for fixing the branched second electrodes. Adjacent fixing locations are separated by a first fastener partition 76 and a second fastener partition 77. The support body lower part sets up the first electrode of three branches and keeps apart position 791, 792, 793 to it is spacing to carry out every fixation nut. The first fastening partition 76 has a front limiting step 762 and a rear mounting groove 761. The second fastener partition 77 has a front limit step 772 and a rear mounting groove 771.

The insulating housing 4 has side fastening holes 471, 472 formed on two side walls of the connecting position of the input portion M and the distributing portion N for engaging with corresponding fastening tenons.

When the insulating fastener 7 is installed, the installation inserting sheet of the installation plate 73 is inserted into the slot provided in the input portion M of the insulating housing 4, the tenon 741 of the first side plate is buckled into the side buckling hole 471 of the insulating housing 4, the tenon 751 of the second side plate is buckled into the side buckling hole 472 of the insulating housing 4, and the at least one reinforcing tenon 711 is clamped on the clamping table at the edge of the bottom first insulating partition 431, so that a first insulating cavity and a second insulating cavity which are insulated from each other are formed in the insulating housing 4.

The metal shell 1 forms a double-wire-row clamping part 17 and a wire-row protective cover 3 buckled on the double-wire-row clamping part at the arrangement position of two rows of wire holes at the tail part of the insulating shell 4.

As shown in fig. 3, a first gasket 35 is provided between the double wire row holding portion 17 and the wire row protecting cover 3.

The end of the plug part 112 of the metal shell 1 is clamped with the plug end cover 9. A second sealing ring 99 is arranged between the plugging end cover 9 and the plugging portion 112, the interlocking short-circuit device 91 and the plugging shielding ring 95 are mounted on the plugging end cover 9, and a plurality of shielding elastic pieces 951 abutting against the inner wall of the plugging portion are formed on the plugging shielding ring, so that an integral shielding structure is formed.

Referring to fig. 8, the first conductive copper bar 5 includes a Z-shaped bus bar 51, and further includes a first tab, a second tab and a third tab respectively connected to three branch electrodes of the first electrode. The first copper conductive bar 5 is electrically connected to the first power terminal A1.

The second copper conductive bar 6 includes a bus bar 6, a first conductive sheet 661, a second conductive sheet 662, and a third conductive sheet 663. The second copper conductive bar 6 is electrically connected to the second power terminal A2. In the present embodiment and the following description, the first power terminal A1 is a negative power terminal, and the second power terminal A2 is a positive power terminal. It is understood that, in another embodiment, the first power terminal A1 is a positive power terminal and the second power terminal A2 is a negative power terminal.

The first power terminal A1 installed at the input portion M is electrically connected to the first output cable B1, the second output cable B2, and the third output cable B3 through the bus bar 51 from bottom one by three.

The second power terminal A2 mounted at the input part M is electrically connected to the first fuse 63, the second fuse 64, and the third fuse 65 from the top by three-in-one by the bus bar 61. The first fuse is connected to a fourth output cable C1 in the middle through a first conducting plate 661 in a stepped folding manner, the second fuse is connected to a fifth output cable C2 in the middle through a second conducting plate 662 in a stepped folding manner, the third fuse is connected to a sixth output cable C3 in the middle through a third conducting plate 663 in a stepped folding manner, and a line row (B1-B3) from the first output cable to the third output cable at the bottom and a line row (C1-C3) from the fourth output cable to the sixth output cable in the middle are arranged in an insulating manner.

The first power terminal A1 and the second power terminal A2 are arranged along the input direction D1 in a high-low mode and arranged linearly along the output direction D2 of the cable, and therefore the structure of the inner conductive terminal is fully optimized and simplified. The first power terminal A1 is close to the output position S of the cable, and the second power terminal A2 is far from the output position S. The power terminal close to the output position S is subjected to branching and output in a simple linear mode, the power terminal far away from the output direction is connected with a fuse serving as a circuit safety fuse, the output end of the fuse is folded in a stepped mode, the middle part of the output end of the fuse is connected with an output cable, the structure of one-to-three multi-path positive and negative electrode conductive terminals is simplified, electrode terminal intersection can be avoided, the space utilization rate inside the connector shell is optimized, and the safe electrical isolation distance of the positive and negative electrodes is met.

Referring to fig. 9 and 10, the specific structure of the conductive copper bar is described as follows:

one end of the first power terminal A1 is provided with a first screw hole. The Z-shaped bus bar 51 includes a stepped body, a first shunt terminal 522, a second shunt terminal 523, and a third shunt terminal 524, and a limiting notch 521 is disposed at an edge of the shunt terminal.

A terminal mounting space is formed below the body of the Z-shaped bus bar 51, and the body fixes the first power terminal A1 to the body by a first electrode screw. The second power terminal A2 is provided with a second screw hole, the bus bar 61 is provided with three bolt holes 611, 612, 613, and a second electrode screw is inserted through the bolt hole 611 in the middle of the bus bar 61 and is engaged with the second screw hole to fixedly connect the second power terminal A2, the second fuse clip 622 and the multiple elements of the bus bar 61 together.

The first fuse clip 621 is mounted on one side of the bus bar 61 by a first bolt assembly, and the third fuse clip 623 is mounted on the other side of the bus bar 61 by a third bolt assembly. This first conducting plate 661, second conducting plate 662 and third conducting plate 663 all include the ladder and the link of stepping down that form the nut assembly space below, set up the bolt hole on each ladder of stepping down, for example third conducting plate 663 includes the ladder 6631 and the link 673 of stepping down that form the nut assembly space below, set up the bolt hole on each ladder 6631 of stepping down.

The fourth fuse clip 624 is mounted on the abdicating step of the first conductive plate 661 by a fourth bolt assembly, and the fifth fuse clip 625 is mounted on the abdicating step of the second conductive plate 662 by a fifth bolt assembly; the sixth fuse clip 626 is mounted on the abdicating step of the third conductive plate 663 by a sixth bolt assembly.

As shown in fig. 9, the first fuse 63 is detachably held between the first fuse clip 621 and the fourth fuse clip 624 from the top; the second fuse 64 is removably held from the top between the second fuse clip 622 and the fifth fuse clip 625; the third fuse 65 is detachably held between the third fuse clip 623 and the sixth fuse clip 626 from the top.

The first shunt terminal 522 is fixed to a first lug 561 through a seventh bolt assembly, and the first lug 561 is electrically connected to the first output cable B1; the second branch terminal 523 is fixed to a second lug 562 by an eighth bolt assembly, and the second lug 562 is electrically connected to the second output cable B2; the third shunt terminal 524 is fixed to a third lug 563 by a ninth bolt assembly, and the second lug 563 is electrically connected to the third output cable B3. Similarly, the connection end of the first conductive plate 661 is fixed to the fourth lug 671 by the tenth bolt assembly, and the fourth lug 671 is electrically connected to the fourth output cable C1; the connecting end of the second conductive plate 662 is fixed with a fifth lug 672 through an eleventh bolt assembly, and the fifth lug 672 is electrically connected with the fifth output cable C2; the connection end of the third conductive plate 663 is fixed to the sixth lug 673 by a twelfth bolt assembly, and the sixth lug 673 is electrically connected to the sixth output cable C3.

In this embodiment, all terminals in the insulating housing 4 are fixed by using solid bolts, and the conductive circuit design 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.

In the scheme of fully utilizing the space to realize bolt fixing, the structures of the first lug to the sixth lug are the same. As shown in fig. 4, taking the third wire eye 563 as an example, the third wire eye 563 has a Z-shape, and includes a wire eye step 5631 and a wire holder, which form a nut fitting space below. Each lug is connected with the corresponding cable core through a wire clamp and is in shielding connection with the corresponding output cable through an outer shielding ring 593.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims (10)

1. A three-way distribution fuse connector comprising a first power terminal (A1) and a second power terminal (A2), characterized in that the first power terminal (A1) is electrically connected to a first output cable (B1), a second output cable (B2) and a third output cable (B3) in three-out from the bottom by a busbar (51); second power terminal (A2) is connected to first fuse (63), second fuse (64) and third fuse (65) from the top electricity through busbar (61) one minute three, first fuse is through first conducting strip (661) ladder turn-back fourth output cable (C1) that is connected to the middle part, the fifth output cable (C2) that is connected to the middle part is turned back through second conducting strip (662) ladder to the second fuse, the sixth output cable (C3) that is connected to the middle part is turned back through third conducting strip (663) ladder to the third fuse, the first output cable to the third output cable bank of bottom with insulating setting between the fourth output cable to the sixth output cable bank of middle part.

2. The three-way distribution fuse connector of claim 1, wherein the first power terminal and the second power terminal are arranged high and low along an input direction (D1) and straight along an output direction (D2) of the cable, the first power terminal (A1) being close to an output position (S) of the cable and the second power terminal (A2) being far from the output position (S).

3. The three-way distribution fuse connector of claim 1, wherein the first power terminal (A1) is provided with a first screw hole at one end, the bus bar (51) comprises a stepped body, a first shunt terminal (522), a second shunt terminal (523) and a third shunt terminal (524), a terminal assembling space is formed below the body, and the body fixes the first power terminal and the body through a first electrode screw; second power terminal (A2) sets up the second screw, set up three bolt hole on busbar (61), second electrode screw passes the bolt hole in busbar middle part with the cooperation of second screw will simultaneously second power terminal (A2), second fuse press from both sides (622) and busbar (61) fixed connection.

4. The three way distribution fuse connector of claim 3, wherein a first fuse clip (621) is mounted on one side of the bus bar (61) by a first bolt assembly, and a third fuse clip (623) is mounted on the other side of the bus bar (61) by a third bolt assembly; the first conducting plate (661), the second conducting plate (662) and the third conducting plate (663) respectively comprise abdicating steps and connecting ends, wherein nut assembling spaces are formed below the abdicating steps, and each abdicating step is provided with a bolt hole; a fourth fuse clip (624) is mounted on the abdicating step of the first conducting strip (661) by a fourth bolt assembly, and a fifth fuse clip (625) is mounted on the abdicating step of the second conducting strip (662) by a fifth bolt assembly; a sixth fuse clip (626) is mounted on the abdicating step of the third conductive plate (663) by a sixth bolt assembly.

5. The three way power distribution fuse connector of claim 4, wherein the first fuse (63) is removably top-clamped between the first fuse clip (621) and the fourth fuse clip (624); the second fuse (64) is removably clamped from the top between the second fuse clip (622) and the fifth fuse clip (625); the third fuse (65) is detachably clamped from the top between the third fuse clip (623) and the sixth fuse clip (626).

6. The three-way distribution fuse connector of claim 1, further comprising an insulating housing (4), wherein the insulating housing (4) comprises an input portion (M) and a branching portion (N), the branching portion divides the interior into an upper layer (L3), a middle layer (L2) and a lower layer (L1) by a first insulating partition (431) and a second insulating partition (432), the input portion (M) comprises a first electrode position (411) at a lower inner side and a second electrode position (412) at a higher outer side, two first set nut fixing positions (451, 452) for connecting the fuse from one end are provided on both sides of the second electrode position (412), and three second set nut fixing positions (461, 462, 463) for connecting the fuse from the other end are provided on the second insulating partition.

7. The three-way distribution fuse connector according to claim 6, characterized in that an insulating fastener (7) is removably snapped between the input (M) and the branching portion (N), a first insulating chamber being formed below the insulating fastener between the first electrode level and the lower level, a second insulating chamber being formed above the insulating fastener between the second electrode level, the middle level and the upper level, and the insulating housing (4) being provided with three third sets of built-in nut fixing locations (421, 422, 423) in the first insulating chamber for fixing the branch first electrodes.

8. The three-way distribution fuse connector of claim 7, wherein the insulating fastener (7) comprises a frame body (71), an electrode isolation plate (72) and a mounting plate (73), the electrode isolation plate extends out from one side of the frame body, a first side plate and a second side plate are arranged on two sides of the frame body, a fastening tenon is arranged on each of the first side plate and the second side plate, at least one reinforcing fastening tenon (711) is arranged at one end of the frame body, the mounting plate is arranged at the tail end of the electrode isolation plate and comprises a mounting insertion sheet, the upper portion of the frame body comprises three fourth set nut fixing positions (781, 782, 783) for fixing the branched second electrodes, the adjacent fixing positions are separated by fastener partition plates (76, 77), the lower portion of the frame body is provided with three branched first electrode separation positions (791, 792, 793), a limiting step is arranged at the front portion of each fastener partition plate, and a mounting groove is arranged at the rear portion of each fastener partition plate.

9. The three-way distribution fuse connector of claim 8, wherein the insulating housing (4) has side locking holes (471, 472) on two side walls of the input portion (M) at the position where the input portion (M) is connected to the dividing portion (N) for engaging with corresponding locking tenons, and the at least one reinforcing locking tenon is locked on a locking platform at the edge of the first insulating partition (431).

10. The three-way distribution fuse connector according to claim 6, further comprising a metal housing (1), wherein the side wall of the insulating housing (4) at the output position (S) of the cable is provided with two rows of wire holes in groups of three, and the outer wall is provided with at least one pair of buckles (481, 483), and the inner wall of the metal housing (1) is provided with a buckle slot matched with the corresponding buckle for installing the insulating housing (4) into the metal housing (1); the metal shell (1) is provided with a double-wire-row clamping part (17) and a wire-row protective cover (3) buckled on the double-wire-row clamping part corresponding to the two rows of wire holes, and a first sealing ring (35) is arranged between the double-wire-row clamping part and the wire-row protective cover; the metal shell (1) is provided with an insertion part (112), the tail end of the insertion part (112) is clamped with an insertion end cover (9), a second sealing ring (99) is arranged between the insertion end cover (9) and the insertion part (112), the insertion end cover (9) is provided with an interlocking short-circuit device (91) and an insertion shielding ring (95), and a plurality of shielding elastic sheets (951) abutting against the inner wall of the insertion part are formed on the insertion shielding ring.

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