CN204167562U - Copper sheet draw-in groove - Google Patents

Abstract

The utility model provides a copper sheet slot, the main body of which has at least one first-level wire bayonet, and first-level cutting edges are respectively arranged on both sides of the opening of the first-level wire bayonet. A secondary wire bayonet is also provided above the primary wire bayonet, and secondary cutting edges are respectively arranged on both sides of the opening of the secondary wire bayonet, and the width of the secondary wire bayonet is smaller than the width of the primary wire bayonet . The fast stamping clamp connection of the utility model has low resistance, reliability, durability, stability and small temperature rise, and eliminates the risk of fire; the live conductor is fixed throughout, and the electrical contact point is enclosed in the insulating shell, eliminating short circuit, contact oxidation, etc. electrical safety hazard. There is no disconnection point throughout the bus, the connection is firm, and the nodes are clean. It avoids the problem of high temperature rise and fire risk due to sandwich effect, electrical stress and thermal stress effect caused by soldering or self-tapping screw connection; it improves the reliability of power distribution.

Description

copper card slot

technical field

The utility model belongs to the field of cabinet power sockets, in particular to a copper plate slot.

Background technique

PDU refers to the power distribution unit. It is the acronym for "Power Distribution Unit" in English. It is mainly used in cabinets and other places that require high power supply reliability. Output interface compatibility: national standard, European standard, British standard can be selected as needed Standard, American Standard and other world standard power socket modules, terminal blocks or wires with plugs and other output interfaces can be combined in any way to meet the different needs of customers in many countries; dual power input can be realized; product end input, product front Different input positions such as panel input and product rear input; optional terminal blocks, 16A national standard plugs, various industrial couplers and other input interfaces. SPD module can provide multiple circuit protection functions: lightning strike, surge protection: maximum impact current: 5KA or higher; limit voltage: ≤1.3kV or lower, with short circuit protection, protection failure indication function, passed the national authority test The professional testing center can be used as fine surge protection at the equipment side; current and voltage monitoring modules with LED display can be provided to realize real-time monitoring of current and voltage; anti-misoperation: the PDU main control switch is equipped with an anti-maloperation protective cover, which can Prevent accidental power failure caused by misoperation.

However, the load current of the PDU in the prior art is small; the output port is single and cannot be compatible with the socket and the wire with a plug; The stress effect will cause the temperature rise to be too high and there is a risk of fire; the internal busbar and connection point conductors are exposed to pose a safety hazard; a single point fault disconnection will cause output power failure; there are many busbar breakpoints and connectors, and the reliability is low; a single product can be There are fewer output ports; the load current is limited; the external dimensions are large, occupying valuable effective space in the cabinet; the efficiency of manual production and assembly is low, and the quality consistency is difficult to guarantee.

At the same time, in the prior art, the SPD module in the PDU circuit is fixedly installed in the casing and connected to the circuit. If the SPD module is damaged during work, the entire PDU circuit must be cut off, and the SPD module or the entire PDU must be replaced. The circuit seriously affects the work of the power supply object.

Utility model content

The technical problem to be solved by the utility model is

A, the load current of PDU in the prior art is little;

C. The connection between the internal wires is connected by soldering or self-tapping screws. Due to the sandwich effect of soldering, electrical stress and thermal stress, the temperature rises too high and there is a risk of fire;

D. Potential safety hazards of exposed conductors;

E. There are many bus breakpoints and joints, and the reliability is low;

F. The load current is limited.

In order to achieve the above purpose, the utility model adopts the technical scheme as follows: a copper sheet slot, the main body of which has at least one first-level wire bayonet, and is respectively arranged on both sides of the opening of the first-level wire bayonet There is a primary edge.

A second-level wire bayonet is also provided above the first-level wire bayonet, and two-level cutting edges are respectively arranged on both sides of the opening of the second-level wire bayonet, and the width of the second-level wire bayonet is smaller than that of the first-level wire clip. Mouth width.

A third-level wire bayonet is also provided above the second-level wire bayonet, and three-stage cutting edges are respectively arranged on both sides of the opening of the third-level wire bayonet, and the width of the third-level wire bayonet is smaller than that of the second-level wire bayonet. blade width.

The primary cutting edge is a single-slope cutting edge or a double-sloping cutting edge, the width of the cutting edge is 0.3 mm, the width of the primary cutting edge is 1 mm, and the included angle between the primary cutting edge and the axis of the primary wire bayonet is 45°.

The width of the first-level wire bayonet is 1.7mm, and the height of the first-level wire bayonet is 5mm; the first-level cutting edge and the first-level wire bayonet are used to clamp the power wire with a core material cross-sectional area of 4mm ² .

The secondary cutting edge is a single-slope cutting edge or a double-sloping cutting edge, the width of the cutting edge is 0.3mm, the width of the secondary cutting edge is 0.25mm; the height of the secondary cutting edge is 1.4mm; The angle between the mouth axis is 45°.

The width of the secondary wire bayonet is 1.2mm, and the height of the secondary wire bayonet is 3mm; the secondary cutting edge and the secondary wire bayonet are used to clamp the power wire with a core material cross-sectional area of 2.5mm ² .

The body thickness is 0.6mm.

The blade body width of the primary cutting edge is at least 2.4mm.

The main body width is at least 7±0.05mm. The fast stamping clamp connection of the utility model has low resistance, reliability, durability, stability and small temperature rise, and eliminates the risk of fire; the live conductor is fixed throughout, and the electrical contact point is enclosed in the insulating shell, eliminating short circuit, contact oxidation, etc. electrical safety hazards; There is no disconnection point throughout the bus, the connection is firm, and the nodes are clean. It avoids the problem of high temperature rise and fire risk due to sandwich effect, electrical stress and thermal stress effect caused by soldering or self-tapping screw connection; it improves the reliability of power distribution.

Description of drawings

Figure 1 is an exploded view of the PDU;

Figure 2 is an explosion diagram of GB-10A-module 9;

Fig. 3 is the assembly drawing of GB-10A-module 9;

Fig. 4 is a sectional view of the shell 4;

Figure 5 is the front view of the "U" card slot A of the shrapnel;

Figure 6 is a C-C sectional view of the "U" slot A of the shrapnel;

Figure 7 is a front view of the "U" slot A of the shrapnel;

Fig. 8 is a perspective view of an embodiment of the shrapnel "U" slot A;

Figure 9 is a perspective view of another embodiment of the "U" slot A of the shrapnel, including (a) front view, (b) perspective view

Fig. 10 is a structural diagram of the snap-in non-destructive terminal 14, including (a) a top view of the snap-in non-destructive terminal 14, (b) a left view of the snap-in non-destructive terminal 14, (c) a three-dimensional snap-in non-destructive terminal 14 picture;

FIG. 11 is a working state diagram of the snap-in non-destructive terminal 14;

Fig. 12 is a diagram of the working state of the snap-in non-destructive terminal block 14;

Figure 13 is the assembly diagram of IEC-C13-module, snap-in non-destructive terminal block 14, circuit breaker 18, busbar-N19, busbar-L20, busbar-PE21, branch line-N22, branch line-L23 and branch line-PE24 , including (a) front view, (b) top view, (c) left view, (d) three-dimensional view;

Fig. 14 is panel 12 structural diagram I, comprises (a) front, (b) back side;

Fig. 15 is a structural diagram II of the panel 12, including (a) bottom view, (b) top view, (c) A-A sectional view, (d) B-B sectional view;

Fig. 16 is a structural diagram of the cable inlet installation end plate 2, including (a) a front view, (b) a top view, (c) a left view, and (d) a three-dimensional view;

Figure 17 is a structural view of the installation end plate 7, including (b) front view, (a) top view, (c) left view, (d) three-dimensional view;

Fig. 18 is a structural diagram 1 of the incoming line insulating end plate 3, including (a) the back side, (b) the front side;

Fig. 19 is the structure diagram II of the incoming line insulation end plate 3, including (a) bottom view, (b) top view, (c) B-B sectional view, (d) C-C sectional view;

Figure 20 is a structural diagram of the insulating end plate 6, including (a) bottom view, (b) top view, (c) front view, (d) left view, (e) and (f) three-dimensional views;

Figure 21 is a cross-sectional view of the busbar support;

Figure 22 is an assembly cross-sectional view;

Figure 23 is an explosion diagram of SPD module 25

Figure 24 is an assembly diagram of the SPD module 25, including (b) front view, (d) top view, (a) right view, (c) left view, (e) three-dimensional view;

Figure 25 is a structural diagram of the SPD module A base 251, including (d) front view, (e) top view, (c) left view, (a) and (b) three-dimensional views;

Figure 26 is a structural diagram of the SPD module B base 254, including (d) front view, (e) top view, (c) left view, (a) and (b) three-dimensional views;

Figure 27 is a structural diagram of the lower cover 253 of the SPD module module, including (a) front view, (b) A-A sectional view, (c) perspective view;

in,

End waterproof joint 1

Cable inlet mounting end plate 2, end plate part 2a, mounting plate part 2b, circular cable inlet 2c, type II through hole 2d, screw mounting hole 2e, mounting groove 2f

Incoming insulation end plate 3, including front 31, back 32, end plate installation through hole 33, type I installation end plate fixing column 34A, type II installation end plate fixing column 34B, chute protrusion 35, type I fixing column 36a , Type II fixing column 36b, grounding terminal slot 37

Shell 4, including end plate mounting beam 41, busbar bracket clip rail 42, panel mounting platform 43, lower cable manager installation slot 44, upper cable manager installation slot 45, fixing buckle installation slot 46

GB-10A-module 9, upper cover 91, upper cover 91, PE shrapnel 92, N shrapnel 93, L shrapnel 94 and lower cover 95; protruding bayonet pin 911, fixed opening 912, ring wiring hole 913, L wire card Connecting hole 914, PE wire clamping hole 915, N wire clamping hole 916, top post 951, buckle 952, wire clamping hole adjustment block 953,

Socket panel 12, screw mounting hole 121, circuit breaker fixing edge 122, trapezoidal convex hole 123, module mounting notch 124, bracket buckle 125, hub mounting notch 126, socket panel mounting notch 127, module protrusion fitting groove 128, Module fixed edge 129,

Circuit breaker protection cover 13

Snap-in non-destructive terminal block 14

Terminal shell 141, terminal copper sheet 142, copper sheet slot 1411, shell flip cover 1412, branch line through hole 1413, busbar through hole 1414, copper sheet mounting plate 1415, flip cover buckle plate 1416

Busbar bracket 15, bracket vertical wall 151, guide rail clamping groove 152, busbar clamping groove 153, busbar clamping vertical wall 154, bending part 155

Terminal board 16

Bus-N19, bus-L20, bus-PE21, branch-N22, branch-L23 and branch-PE24.

Copper card slot (A00); primary cutting edge (A01); main body (A02); primary wire bayonet (A03); blade edge (A04); secondary cutting edge (A05); secondary wire bayonet ( A06);

Main body width (a); first-level wire bayonet height (b); second-level wire bayonet width (c); first-level wire bayonet width (d); first-level wire bayonet width (e); Width (f); secondary cutting edge width (g); main body thickness (h); secondary cutting edge height (i); cutting edge width (j); angle between primary cutting edge and primary wire bayonet axis (k); the height of the secondary wire bayonet (l); the angle between the secondary cutting edge and the axis of the secondary wire bayonet (m)

SPD module, A base 251, module upper cover 252, module lower cover 253, B base 254 and SPD module shrapnel 255, and connecting insert 256, I cavity 2511, insert through slot 2512, buckle 2513, insert The piece passes through the notch 2541, the II cavity 2542, the cover insertion piece passes through the hole 2531, and the lower cover snaps 2532.

Detailed ways

The utility model and the compatible socket output and cable output of the utility model and its application will be further described below with high reliability PDUs with power distribution on both sides of the through-bus bar.

As shown in Figure 1, this high-reliability PDU with compatible socket output and cable output is centrally installed through both sides of the busbar, including end waterproof connector 1, incoming line installation end plate 2, incoming line insulating end plate 3, housing 4, Cable manager 5, insulating end plate 6, installation end plate 7, multiple socket modules, panel 12, circuit breaker protection cover 13, clip-on non-destructive terminal 14, busbar bracket 15, terminal board 16, waterproof terminal block 17. Circuit breaker 18, busbar-N19, busbar-L20, busbar-PE21, branch line-N22, branch line-L23 and branch line-PE24; socket modules include universal socket module 8, GB-10A socket module 9. IEC-C19 socket module 10 and/or IEC-C13 socket module 11 .

Each busbar is electrically connected to each corresponding branch line through a snap-in non-destructive terminal 14, and each corresponding branch line is electrically connected to each module for connecting a power plug through a circuit breaker 18; the waterproof terminal 17 is provided with a branch line -N22 , branch line-L23 and branch line-PE2; busbar-N19, busbar-L20, and busbar-PE21 enter the shell 4 through waterproof connector 1, incoming line installation end plate 2, incoming line insulating end plate 3; busbar bracket 15 is clamped Inside the casing 4, the busbar support 15 is provided with slots for accommodating snap-in non-destructive terminals 14; the panel 12 is clipped on the upper end of the casing 4, and is provided with a circuit breaker protective cover 13; The upper ends of the modules of the plugs are snapped into the panels 12 respectively, and the lower sections of the circuit breakers 18 and the modules used to connect the power plugs are respectively placed in the bus bracket 15, each bus-N19, bus-L20, bus- PE21 is clamped in the busbar bracket 15; the waterproof joint 1, the incoming line installation end plate 2, and the incoming line insulating end plate 3 are installed on one end of the shell 4; the insulating end plate 6 and the installation end plate 7 are installed on the other end of the shell 4.

shell

As shown in Figures 4 and 22, the housing 4 is an "凵"-shaped groove, including an end plate mounting beam 41, a bus bracket clamping rail 42 and a panel mounting platform 43; the mounting beams 41 are respectively arranged on the inside of the left and right vertical walls of the housing , the mounting beam 41 axially penetrates the casing 4; the busbar bracket clip rail 42 is arranged at the middle position inside the lower part of the casing 4, and the busbar bracket clip rail 42 axially penetrates the casing 4; the top of the left and right vertical walls of the casing 4 faces inward Extend to form a panel installation platform 43 parallel to the bottom surface of the housing 4; the panel installation platform 43 is provided with an upper cable organizer installation groove 45 axially penetrating the housing 4, and the left and right edges of the bottom surface of the housing 4 are respectively provided with a lower The cable organizer installation groove 44, the cable organizer 5 is respectively fixed on the left and right outer surfaces of the shell 4 through the lower cable organizer installation groove 44 and the upper cable organizer installation groove 45. The busbar bracket 15 is inserted into the housing 4 and fixed by the busbar bracket clamping rail 42 and two mounting beams 41; the position below the center line outside the left and right vertical walls of the housing 4 is provided with a fixing buckle installation groove 46.

The two axial end faces of the end plate installation beam 41 and the bus bar bracket clamping rail 42 are provided with self-tapping threaded holes, and the incoming line installation end plate 2 and the incoming line insulation end plate 3 can be installed on the shell 4 by self-tapping screws. One end on the axial end face, the insulating end plate 6 and the installation end plate 7 can be installed on the other end of the axial end face of the shell 4 by self-tapping screws, and the incoming line installation end plate 2 and the installation end plate 7 can be installed along the shell as required. The central axis can be rotated arbitrarily 180° for adjustment.

Snap-in non-destructive terminal block

As shown in Figures 10 to 13, the snap-in non-destructive terminal 14 includes a shell 141 and a terminal copper sheet 142; the terminal copper sheet 142 includes three "U"-shaped slots A, and the terminal copper sheet 142 connects the busbar and the branch Two branch wires are connected electrically. The "U" shaped slot A has the same structure as the "U" shaped slot A of the "shrapnel", and has the same advantages.

The terminal housing 141 includes a housing flip cover 1412, a copper sheet mounting plate 1415 and a flip cover fastening plate 1416; one end of the copper sheet mounting plate 1415 is connected to one side of the shell flip cover 1412, and one side of the copper sheet mounting plate 1415 is connected to the flip cover fastening plate 1416 Connected side by side.

The shell cover 1412 is in an "L" shape, and the shell cover 1412 is fastened with the cover buckle plate 1416 to wrap the terminal copper sheet 142 .

The opposite sides of the copper sheet mounting plate 1415 and the clamshell fastening plate 1416 are respectively provided with three corresponding grooves, and these grooves respectively form two branch line through holes 1413 and a bus bar through hole 1414, and the two branch line through holes 1413 respectively Located on both sides of the busbar through hole 1414.

A copper slot 1411 is provided in the middle of the copper mounting plate 1415 , through which the terminal copper 142 is inserted into the snap-fit non-destructive terminal housing 141 .

Bus support

As shown in Figures 21 and 22, the cross-section of the busbar support 15 is a "mountain" shape, including a bracket vertical wall 151, a busbar clamping groove 153, and a busbar clamping vertical wall 154; the middle vertical wall is a busbar clamping vertical wall 154, and the vertical walls on both sides are Bracket vertical wall 151; after the busbar bracket 15 is inserted into the inside of the housing 4, the top of the bracket vertical wall 151 abuts against the end plate installation beam 41; The bottom plate forms a rib accommodation cavity; the lower middle position of the busbar support 15 is provided with a guide rail engagement groove 152, and the guide rail engagement groove 152 matches with the busbar support engagement rail 42 of the housing 4; the busbar support 15 is inserted into the interior of the housing 4 After that, the tops of the guide rail clamping groove 152 and the bracket vertical wall 151 are respectively fixed to the bus bracket clamping rail 42 and the end plate installation beam 41 in the inside of the housing 4; The inside of the clamping vertical wall 154 is provided with a busbar clamping groove 153 with an upper opening. The two inner facades of the busbar clamping groove 153 are respectively provided with six clamping grooves for clamping the busbar. The number of clamping grooves can be determined according to specific needs. Setting; the two outer surfaces of the upper end of the bus bar clamping vertical wall 154 are respectively provided with buckles, and the buckles cooperate with the bracket buckles 125 of the panel 12 .

panel

As shown in Figures 14 and 15, one end of the panel 12 is provided with a "mountain"-shaped module installation gap 124, and the vertical wall of the module installation gap 12 is provided with a module protrusion matching groove 128, and the module installation gap The closed end of 124 is provided with a module fixing rib 129; the other end of the panel 12 is provided with a panel installation notch 127 that matches the module installation notch 124; the upper part of the panel 12 is provided with two trapezoidal convex holes 123 for installing a circuit breaker, The centerlines of the trapezoidal convex holes 123 are axially aligned with the centerlines of the module installation notches 124; the inner surfaces of the trapezoidal convex holes 123 are respectively provided with circuit breaker fixing ribs 122 for adapting to the outer facade of the circuit breaker. When the circuit breaker 18 is installed inside the panel 12, the circuit breaker fixing edge 122 can clamp the uneven outer surface of the circuit breaker 18, so that the circuit breaker 18 can be installed more firmly; the left and right edges of the panel 12 are bent inward, forming a The installation chute that cooperates with the panel installation platform 43, this installation chute is provided with a plurality of buckles that are clamped with the panel installation platform 43; the left and right edge positions of the panel 12 are respectively provided with screw mounting holes 121; The position where the panel installation platform 43 cooperates is provided with a cable manager installation gap 126; the lower surface of the panel 12 is provided with an installation groove axially penetrating the panel 12, and the inner wall of the installation groove is provided with a buckle on the upper end of the vertical wall 154 of the busbar support The matched bracket buckle 125 ; the self-tapping screw fixes the panel 12 on the panel installation platform 43 through the screw installation hole 121 .

socket module

As shown in Figures 1, 2 and 3, the structures of the universal module 8, GB-10A module 9, IEC-C13 socket module 10, and IEC-C19-module 11 described in this scheme are basically The same, both include an upper cover 91 and a lower cover 95 that are engaged with each other and three elastic pieces installed in the upper and lower covers. The difference lies in the insertion opening of the upper cover 91, the installation structure of each shrapnel in it, the contact part and connection part of the shrapnel - the insertion piece of the plug - the insertion piece, and the corresponding structure of the lower cover will be adjusted locally according to the needs .

Taking the GB-10A module 9 as an example, the GB-10A module 9 includes an upper cover 91, a PE elastic piece 92, an N elastic piece 93, an L elastic piece 94 and a lower cover 95; the edge of the upper cover 91 is provided with a protrusion Bayonet 911, the protruding bayonet 911 is matched with the module protrusion matching groove 128 of the panel 12; the GB-10A module 9 also includes an annular wiring hole 913, an L wire clip hole 914, and a PE wire clip hole 915 and N wire clamping hole 916; PE elastic piece 92, N elastic piece 93, L elastic piece 94 are inserted into the corresponding position of upper cover 91; described PE elastic piece 92, N elastic piece 93, L elastic piece 94 are respectively connected with their The "U"-shaped card slot A is connected, and the sub-line-N22, sub-line-L23 and sub-line-PE24 are connected in a straight line through the corresponding PE wire clamping hole 915, L wire clamping hole 914 and N wire. Holes 916, typical "U"-shaped card slots A are arranged diagonally inside the GB-10A module 9 so that the distance between the "U" card slots is as large as possible, and the shrapnel is avoided as far as possible when it is deformed by an external force. Short circuit due to contact, and breakdown of air to generate arc when encountering instantaneous high voltage, and can also be safely and accurately aligned with corresponding wire clamping holes; lower cover 95 also includes top column 951 and three buckles 952, buckle 952 Cooperate with the fixed opening 912 of the upper cover. After the lower cover 95 is installed on the upper cover 91, the top column 951 withstands the suitable parts of the PE elastic pieces 92, N elastic pieces 93, and L elastic pieces 94, which are generally connecting parts, so that the installation is more firm; The buckles 952 are arranged in a triangle; the lower cover 95 can be freely replaced according to the requirements of the load current. The change of different lower covers 95 is that the height of the wire clamping hole adjustment block 953 is different. The higher the wire clamping hole adjustment block 953, the higher the wire clamping hole adjustment block 953. The smaller the wire snap holes, the fewer wires and/or the smaller the current that can be carried; and vice versa.

The branch line-N22, branch line-L23 and branch line-PE24 are connected to the corresponding "U"-shaped card slot A through quick stamping and snap-in connection. The quick stamping snap-in connection means that the branch line-N22 , Branch line-L23 and branch line-PE24 quickly snap the line body into the "U"-shaped slot A by punching with a high-pressure punch.

The "U"-shaped slot A may include slots with multiple widths, and the general width of the slots can be set to be used for simultaneously snapping wires with a cross-section of 2.5 mm ² and a cross-section of 4 mm ² .

This solution connects with low resistance, durability, stability and small temperature rise, eliminating the risk of fire; the live conductor is fixed all the way, and the electrical contact points are enclosed in the insulating shell, eliminating electrical safety hazards such as short circuit and contact oxidation; internal ring can be realized Wiring eliminates single-point fault power outages and reduces the scope of multi-point fault power outages; the bus has no broken nodes throughout the entire process, and the connections are firm and the nodes are clean. It avoids the problem of fire risk due to temperature rise caused by the sandwich effect, electrical stress and thermal stress caused by soldering and self-tapping screw connection; it improves the reliability of power distribution.

The external structure of the socket module described in this scheme is not unique and can be replaced with each other (such as: universal socket module 8, IEC-C13 socket module 10 and IEC-C19 socket module 11), but the internal The shrapnel arrangement and the basic structure of the shrapnel are the same or similar. Except the socket module, what bear the external output function is also the band plug wire panel of terminal block 16 and waterproof lug 17.

As shown in Figures 1 and 13, the universal socket module 8, the GB-10A socket module 9, the IEC-C19 socket module 10, the IEC-C13 socket module 11 and the "mountain" on the panel 12 are installed on the panel with plug conductors. "Type module installation gap 124;

The circuit breaker protective cover 13 is fastened on the trapezoidal convex hole 123;

The circuit breaker 18 is installed in the trapezoidal convex hole 123 of the panel 12, and the panel 12 is then installed on the panel mounting platform 43 of the housing 4 and fixed by screws;

Circuit connection

Busbar-N19, busbar-L20 and busbar-PE21 are connected to each branch-N22, branch-L23 and branch-PE24 through snap-in non-destructive terminal 14; bus-N19, bus-L20 and bus-PE21 are installed in In the bus bracket 15; the sub-line-N22, the sub-line-L23 and the sub-line-PE24 connect the universal socket module 8, the GB-10A socket module 9, the IEC-C19 socket module 10 and/or the IEC-C13 socket The module 11 and/or the leads with plugs are connected into the circuit of the PDU power distributor through the circuit breaker 18 .

shrapnel

The PE shrapnel 92, N shrapnel 93, and L shrapnel 94;

As shown in Figures 5 to 9, each shrapnel and terminal copper piece 142 includes a "U" card slot A, and its main body A02 has at least one first-level wire bayonet A03. The two sides of the opening of the first-level wire bayonet A03 are respectively provided with a first-level cutting edge A01. A secondary wire bayonet A06 is also provided above the primary wire bayonet A03, and secondary cutting edges A05 are respectively arranged on both sides of the opening of the secondary wire bayonet A06, and the width of the secondary wire bayonet is c Less than the width e of the bayonet of the primary wire.

A third-level wire bayonet is also provided above the second-level wire bayonet A06, and three-level cutting edges are respectively arranged on both sides of the opening of the third-level wire bayonet, and the width of the third-level wire bayonet is smaller than that of the second-level wire. Bayonet width c.

The primary cutting edge A01 is a single-slope cutting edge or a double-sloping cutting edge, the width j of the cutting edge is 0.3 mm, the width f of the primary cutting edge is 1 mm, and the included angle k between the primary cutting edge and the axis of the primary wire bayonet is 45°.

The width e of the first-level wire bayonet is 1.7mm, and the height b of the first-level wire bayonet is 5mm; the first-level cutting edge A01 and the first-level wire bayonet A03 are used to clamp the power wire with a core material cross-sectional area of 4mm ² .

The secondary edge A05 is a single bevel edge or a double bevel edge, the blade width j is 0.3mm, the secondary edge width g is 0.25mm; the secondary edge height i is 1.4mm; the secondary edge and The angle m between the axes of the bayonet socket of the secondary wire is 45°.

The width c of the secondary wire bayonet is 1.2mm, and the height l of the secondary wire bayonet is 3mm; the secondary cutting edge A05 and the secondary wire bayonet A06 are used to clamp the power wire with a core material cross-sectional area of ^2.5mm2 .

The main body thickness h is 0.6mm.

The blade body width d of the primary cutting edge is at least 2.4mm.

The main body width a is at least 7±0.05mm

Generally, the "U" card slot A of the shrapnel is provided with one piece, but there is another deformation to satisfy the "U" card slot A with sufficient strength. Generally, two "U" card slots A can be overlapped by a certain distance.

Insulation end plate

As shown in Figure 18, the insulating end cover includes an incoming line insulating end plate 3 and an insulating end plate 6; the incoming line insulating end plate 3 and the insulating end plate 6 are rectangular; The middle position on the left side of the center line is provided with a circular opening; the four sides of the front side 31 of the incoming line insulating end plate 3 are provided with raised edges, and the middle positions of the three raised edges on the left, right and bottom are provided with end plate installation Through hole 33, the middle seat of the raised edge above is provided with I-type installation end plate fixing column 34A, and the installation end plate fixing column 34A is matched with the screw mounting hole 2e on the incoming line installation plate 2; the four sides of the front side 31 Each corner is provided with four stepped type II installation end plate fixing columns 34B, and the II type installation end plate fixing columns 34B cooperate with the II type through hole 2d on the incoming line installation end plate 2; the insulating end plate 3 The upper edge of the back side 32 is provided with a chute protrusion 35; the two upper corners of the back side 32 are respectively provided with I-shaped fixing posts 36a, and the I-shaped fixing posts 36a cooperate with the lower end surface of the panel mounting platform 43 of the housing 4 ; The two lower corners of the back 32 are respectively provided with II-type fixed columns 36b, and the II-type fixed columns 36b cooperate with the internal protrusions of the fixed buckle installation groove 46 of the shell 4. A ground terminal clamping slot 37 is provided in the middle of the bottom of the rear surface 32 for fixing the ground terminal of the PDU shell.

As shown in Figures 18, 19 and 20, the difference between the insulating end plate 6 and the incoming line insulating end plate 3 is that there is no circular opening, and the rest of the structures are the same or similar.

Install the end plate

As shown in Figures 16 and 17, the line inlet installation plate 2 includes an end plate portion 2a and an installation plate portion 2b, the end plate portion 2a and the installation plate portion 2b form an angle of 90°; the end plate portion 2a forms Rectangular, the end plate part 2a is provided with a circular inlet 2c; four corners are provided with four type II through holes 2d, the type II through holes 2d and the stepped type II installation on the incoming insulation end plate 3 The end plate fixing columns 34B are matched; the middle positions of the four sides of the end plate part 2a are provided with screw mounting holes 2e; the mounting plate part 2b is provided with three mounting grooves 2f.

As shown in Figures 16 and 17, the difference between the installation end plate 7 and the wire inlet installation end board 2 is that there is no circular wire inlet 2c, and the structural features of other parts are the same or similar.

SPD module (not shown in Figure 1)

As shown in Figures 23 to 27, the SPD module includes a base module and a plug-in module; the base module is installed in the shell 4 and connected in parallel with the PDU circuit, and the plug-in module is plugged into the base module and connected to the PDU circuit through the base module.

The base module includes A base 251, B base 254 and SPD module shrapnel 255; both A base 251 and B base 254 are in the shape of "凵", and the lower parts of A base 251 and B base 254 are respectively equipped with SPD module shrapnel The cavities 2511 and 2542 of 255, when the A base 251 and the B base 254 are fastened together, the SPD module shrapnel 255 can be wrapped in the two cavities 2511 and 2542; the inner lower surface of the A base 251 is provided with three The insertion piece passes through the groove 2512, and the inner lower surface of the B base 254 is provided with three insertion pieces through the gap 2541, and the insertion piece of the A base 251 passes through the groove 2512 and the insertion piece of the B base 254 passes through the gap 2541 to form a base insertion piece through the hole The position of the base insert through the hole corresponds to the position of the SPD module shrapnel in the cavity; the left and right vertical walls of the A base 251 are provided with buckles 2513, and the left and right vertical walls of the B base 254 are provided with the aforementioned buckles The corresponding card slot 2543 makes the mutual installation of the A base 251 and the B base 254 more firm, and makes the SPD module shrapnel 255 wrapped in the cavity more stable.

The plug-in module includes a module upper cover 252, a module lower cover 253 and a connection insert 256; the upper part of the connection insert 256 is connected to the PCB board 257; the module lower cover 253 is provided with a module lower cover corresponding to the position of the connection insert 256 The insertion piece passes through the hole 2531; when the plug-in module is plugged on the base module, the connection insertion piece 256 is connected to the corresponding position of the SPD module elastic piece 255 through the hole of the base insertion piece through the hole and the module lower cover insertion piece 2531; the module lower cover The left and right edges of 253 are respectively provided with module lower cover buckles 2532, and the module lower cover 253 is fastened on the bottom of the module upper cover 252 to fix the PCB board 257 in the cavity of the module upper cover 252; the left and right vertical walls of the module upper cover 252 The upper surface of the module upper cover 252 is provided with a snap-fit hole, and the upper surface of the module upper cover 252 is also provided with display holes for power supply, grounding and failure indicator lights; the left and right sides of the module upper cover 252 are provided with locking The fixing buckle on the base module is also provided with positioning ribs on both sides of the fixing buckle to make the plug-in module more stable when inserted into the base module. By biasing the connecting tab 256, the fool-proof function is realized.

A base 251, B base 254 and SPD module shrapnel 255 form the base module as a whole, and are installed in the shell 4 to connect to the PDU circuit; the module upper cover 252, the module lower cover 253 and the connecting insert 256 form the plug-in module as a whole , Installed on the base module and connected to the PDU circuit in parallel; the plug-in module can be replaced as needed without cutting off the power supply and will not affect the work of the power supply object, realizing the hot-swappable function of the SPD module in the PDU power distributor circuit.

Temperature rise experiment

According to the "People's Republic of China Communication Industry Standard YD/T2063-2009" regulations: the test time is one hour, and the temperature rise should not exceed 45K. In order to achieve a more convincing effect in this experiment, the measured data is the data when the temperature of the tested part is saturated and constant, and the duration is about 3 hours.

Experimental equipment: paperless temperature rise recorder (manufacturer: Hangzhou Meikong Automation Technology Co., Ltd., model MIK5016A, number 210904011E36001),

Experimental conditions: 4 groups of loads, each group of current 16A, resistance 15Ω, rated power 10KW, experimental load power 4KW, total load 64A, power supply voltage 250V, PDU bus cross-sectional area 9mm ^2. , ring bus 4+2.5mm ²

Experimental object: Compatible with socket output and cable output, high-reliability PDU with power distribution on both sides of the through-bus.

Experimental method: The paperless temperature rise recorder detects and records the temperature of the plug, PDU shell, input cable sheath, copper sheet (shrapnel) and the environment through the temperature-sensing line, until the temperature of each item reaches saturation.

The record form is as follows:

Table 1

Table 2

According to Tables 1 and 2, it can be seen that the maximum temperature rise is about 20K, which is far lower than the 45K required in the "Communication Industry Standard of the People's Republic of China YD/T2063-2009".

There are experimental data available: the utility model is connected with low resistance, reliability, durability, stability and small temperature rise, eliminating the risk of fire. Those skilled in the art will appreciate that the embodiments described here are to help readers understand the principle of the utility model, and it should be understood that the protection scope of the utility model is not limited to such specific statements and examples. Those skilled in the art can make various other specific modifications and combinations based on the technical revelations disclosed in the utility model without departing from the essence of the utility model, and these variations and combinations are still within the protection scope of the utility model.

Claims (10)

1. The copper card slot (A) is characterized in that: its main body (A02) has at least one first-level wire bayonet (A03), and the two sides of the opening of the first-level wire bayonet (A03) are respectively set There is a primary cutting edge (A01). 2. The copper sheet slot (A00) according to claim 1, characterized in that: a secondary wire bayonet (A06) is also provided above the primary wire bayonet (A03), and a secondary wire bayonet (A06) is arranged above the secondary wire bayonet (A03). Both sides of the opening of the bayonet (A06) are respectively provided with secondary cutting edges (A05), and the width (c) of the secondary wire bayonet is smaller than the width (d) of the primary wire bayonet. 3. The copper sheet draw-in slot (A) according to claim 2, characterized in that: the top of the secondary wire bayonet (A06) is also provided with a third-level wire bayonet, at the top of the three-stage wire bayonet The two sides of the opening are respectively provided with third-level cutting edges, and the width of the third-level wire bayonet is smaller than the width (c) of the blade body of the second-level cutting edge. 4. The copper sheet slot (A) according to any one of claims 1 to 3, characterized in that: the primary edge (A01) is a single-bevel edge or a double-bevel edge, and its edge width (j) 0.3mm, the width (f) of the primary cutting edge is 1mm, and the included angle (k) between the primary cutting edge and the axis of the primary wire bayonet is 45°. 5. The copper sheet slot (A) according to claim 4, characterized in that: the first-level wire bayonet width (e) is 1.7mm, the first-level wire bayonet height (b) is 5mm; the first-level cutting edge (A01) and the first-level wire bayonet (A03) are used to clamp the power wire with a core material cross-sectional area of 4mm ² . 6. The copper sheet slot (A) according to any one of claims 1 to 3, characterized in that: the secondary cutting edge (A05) is a single bevel edge or a double bevel edge, and its edge width (j) The width (g) of the secondary cutting edge is 0.25mm; the height (i) of the secondary cutting edge is 1.4mm; the included angle (m) between the secondary cutting edge and the axis of the secondary wire bayonet is 45°. 7. According to the arbitrary described copper sheet draw-in groove (A) of claim 6, it is characterized in that: the secondary wire bayonet width (c) is 1.2mm, and the secondary wire bayonet height (1) is 3mm; The cutting edge (A05) and the secondary wire bayonet (A06) are used to clamp the power wire with a core material cross-sectional area of ^2.5mm2 . 8. The copper sheet card slot (A) according to any one of claims 1 to 3, characterized in that: the thickness (h) of the main body is 0.6mm. 9. The copper sheet slot (A) according to any one of claims 1 to 3, characterized in that the width (d) of the primary cutting edge is at least 2.4 mm. 10. The copper sheet slot (A) according to any one of claims 1 to 3, characterized in that: the main body width (a) is at least 7±0.05mm.