CN214379880U

CN214379880U - Junction box base of power distribution unit and junction box thereof

Info

Publication number: CN214379880U
Application number: CN202023180194.8U
Authority: CN
Inventors: 张汪洋; 刘大明; 谢长友
Original assignee: Qianjin Electronic Suzhou Co ltd
Current assignee: Qianjin Electronic Suzhou Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-10-08
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a terminal box base of power distribution unit, the terminal box base includes the casing, the casing forms a cavity, the connecting piece has in the cavity, be provided with the mounting hole of two lines of three rows on the connecting piece, three in the first line inside wire, three in the second line the mounting hole connection input cable conductor, the cavity is still including the chamber that holds that is used for holding three phase component. The junction box comprises a junction box base and a Power Distribution Unit (PDU), wherein the junction box base is provided with a mounting hole for single-phase input and a containing cavity for containing a three-phase component, and the three-phase component can be installed in the containing cavity, so that the three-phase current input can be simultaneously met in the junction box, and therefore, the Power Distribution Unit (PDU) can simultaneously meet the requirements of single-phase, three-phase and direct current at the input end in the design aspect of a junction box cover at the input end and meet the performance requirements of products.

Description

Junction box base of power distribution unit and junction box thereof

Technical Field

The utility model relates to a power distribution unit especially relates to power distribution unit's terminal box base and terminal box thereof.

Background

A PDU (Power Distribution Unit), which is a Power Distribution socket for a cabinet, is a product designed to provide Power Distribution for electrical equipment installed in the cabinet, has various series specifications of different functions, installation modes and different plug-in combinations, and can provide a suitable rack-mounted Power Distribution solution for different Power environments. Due to the application of the PDU, the power supply in the cabinet can be distributed more orderly, reliably, safely, professionally and attractively, and the maintenance of the power supply in the cabinet is more convenient and reliable.

The PDU product has single-phase, three-phase and direct-current components at the input end, and the difference of rated current is also a key performance parameter. However, the input junction box of the power distribution unit cannot accommodate single-phase and three-phase designs at the same time, and cannot meet the product performance requirements.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the embodiment of the utility model provides a terminal box base of power distribution unit, terminal box base includes the casing, the casing forms a cavity, the connecting piece has in the cavity, be provided with the mounting hole of two lines three rows on the connecting piece, three in the first line inside wire, three in the second line are connected to the mounting hole input cable conductor, the cavity is still including the chamber that holds that is used for holding three-phase component.

Further, the bottom of the shell is provided with two relatively independent cavities, the cavity is divided into two cavities, a long and narrow bayonet is arranged between the two bottoms, and the clamping plates of the three-phase component are inserted into the bayonet so that the three-phase component is accommodated in the accommodating cavity.

Furthermore, the cavity is internally provided with a partition plate, the partition plate comprises a transverse plate and two longitudinal plates, the transverse plate and the two longitudinal plates are perpendicular to the horizontal plane, the longitudinal plates are arranged in parallel and are respectively intersected with the transverse plates, and the accommodating cavity is divided into two rows and three columns by the partition plate, and the two rows and the three columns are respectively in one-to-one correspondence with the mounting holes.

Furthermore, the intersection of the transverse plate and the longitudinal plate is provided with a threaded hole, and the threaded hole is used for installing a junction box cover.

Further, the shell comprises upper end portions arranged at four top corners of the cavity, each upper end portion comprises a main body portion and two branch portions, the main body portions and the two branch portions are horizontally arranged, the branch portions are respectively and vertically connected to two ends of the main body portion, and the main body portion and the branch portions are integrally formed.

Further, the lower surface of the branch portion has a guide groove which is fitted with the profile such that the guide groove is fitted to the profile.

Furthermore, the end part of the branch part is provided with an upper layer and a lower layer, an interface is formed between the upper layer and the lower layer in a hollow mode, and the interface is clamped with the clamping part of the junction box cover.

Further, the side of branch portion is provided with the through-hole, the through-hole with the section bar cooperation is connected.

Furthermore, each mounting hole is also provided with a metal pressing plate.

Further, the utility model discloses still include a power distribution unit's terminal box, include as above the terminal box base, still include the terminal box lid, terminal box lid block extremely will in the upper end of terminal box base the cavity is sealed.

The utility model has the advantages as follows:

the terminal box base is provided with a mounting hole for single-phase input and a containing cavity for containing a three-phase component, and the three-phase component can be installed in the containing cavity, so that the terminal box can simultaneously meet three-phase current input, and therefore, the Power Distribution Unit (PDU) can simultaneously meet the requirements of single-phase, three-phase and direct current input and product performance in the design aspect of an input terminal box.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

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.

Fig. 1 is an exploded view of a junction box according to an embodiment of the present invention;

fig. 2 is a perspective view of a terminal box base in a terminal box according to an embodiment of the present invention;

fig. 3 is a top view of a terminal block base in a terminal block in an embodiment of the invention;

fig. 4 is a cross-sectional view of a terminal block base in a terminal block in an embodiment of the invention;

fig. 5 is a side view of a terminal block base in a terminal block in an embodiment of the invention;

fig. 6 is a perspective view of a three-phase component in the junction box in an embodiment of the invention;

fig. 7 is a cross-sectional view of a three-phase component in a junction box in an embodiment of the invention;

fig. 8 is a perspective view of a junction box cover in the junction box of the embodiment of the present invention;

fig. 9 is a sectional view of a junction box cover in the junction box according to the embodiment of the present invention.

Reference numerals of the above figures: a junction box-100; a junction box base-1; a housing-11; a bayonet-111; receiving cavity-112 connecting piece-12; mounting holes-13; a longitudinal plate-141; a transverse plate-142; -15 threaded hole; an upper end-16; a body portion-161; a branch-162; a channel-163; interface-164; a through-hole-165; a groove-17;

a three-phase component-2; a base-21; a clamping plate-22; a wiring hole-23; an auxiliary element-24;

a junction box cover-3; a body portion-31; a long side portion-311; short side portion-312; a clamping part-313; slot-32; a stop part-33.

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 work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.

To achieve the above object, the present invention provides a terminal box 100 of a power distribution unit, as shown in fig. 1. The junction box 100 of the power distribution unit comprises a junction box base 1, a junction box cover 3 and a three-phase part 2. Junction box base 1 forms the cavity that is used for connecting the electric wire, junction box lid 3 will the cavity that junction box base 1 formed is sealed, three-phase part 2 can hold extremely in the junction box base 1 for this junction box 100 not only can satisfy single-phase current input, can also satisfy three-phase current input, increases the product compatibility and the suitability of this junction box 100, satisfies the different demands of product.

The terminal block base 1, the terminal block cover 3 and the three-phase component 2 will be explained in detail below.

As shown in fig. 2 and 4, the terminal box base 1 includes a housing 11, the housing 11 forms a cavity, a connecting member 12 is disposed in the cavity, and two rows and three columns of mounting holes 13 are disposed on the connecting member 12. Three mounting holes 13 in the first row are connected with internal wires, three mounting holes 13 in the second row are connected with input cables, and the cavity further comprises a containing cavity 112 for containing the three-phase component 2.

The bottom of the shell 11 has two relatively independent cavities, which divide the cavity into two cavities, and the two cavities respectively accommodate the mounting holes 13 in the first row and the second row. An elongated bayonet 111 is formed between the two bases.

As shown in fig. 6 and 7, the three-phase component 2 includes a base 21 and a clamping plate 22 perpendicular to the base 21, four wiring holes 23 are provided on the base 21, the wiring holes 23 are arranged in two rows and two columns, and the wiring holes 23 are provided on the same side of the clamping plate 22. The clamping plate 22 of the three-phase component 2 is inserted into the clamping opening 111, so that the three-phase component 2 is accommodated in the accommodating cavity 112.

Be provided with the metal clamp plate in the wiring hole 23, be located two of first line wiring hole 23 connects the inside wire, is located two of second line wiring hole 23 connects the input cable conductor, the metal clamp plate cooperation installation the input cable conductor with the inside wire.

The junction box base 1 is provided with a mounting hole 13 for single-phase input and a containing cavity for containing a three-phase component 2, and the three-phase component 2 can be installed in the containing cavity, so that the junction box 100 can simultaneously meet three-phase current input, and therefore, in the design aspect of the input end junction box 100, the Power Distribution Unit (PDU) can simultaneously meet the requirements of single-phase, three-phase and direct current input ends and product performance requirements.

In particular, the three-phase component 2 is accommodated into the accommodation cavity of the terminal block base 1, the wiring holes 23 of the first row in the three-phase component 2 being located below the mounting holes 1313 of the second row in the terminal block base 1. The input cable wires of the second row in the three-phase component 2 and the input cable wires of the second row in the junction box base 1 form a three-phase input electrical interface in a matching manner. Thereby realizing that the junction box 100 can simultaneously meet the requirements of single phase and three phase.

Specifically, as shown in fig. 2, the cavity in the terminal box base 1 has a partition plate therein, the partition plate includes a transverse plate 142 and two longitudinal plates 141 perpendicular to the horizontal plane, the longitudinal plates 141 are arranged in parallel and respectively intersect with the transverse plate 142, and the partition plate divides the accommodating cavity into two rows and three columns, which are respectively in one-to-one correspondence with the mounting holes 13. The mounting holes 13 are divided into respective area ranges, so that the wiring is clear and tidy, and the wiring is not messy.

Each mounting hole 13 is further provided with a metal pressing plate, and the metal pressing plates are used for matching the input cable and the internal lead.

In order to mount the junction box base 1 and the junction box cover 3, a threaded hole 15 is provided at the intersection of the transverse plate 142 and the longitudinal plate 141, and the threaded hole 15 is used for mounting the junction box cover 3.

As shown in fig. 2 and 4, the housing 11 further includes an upper end portion 16 disposed at four corners of the cavity, the upper end portion 16 includes a main body portion 161 and two branch portions 162 disposed horizontally, the branch portions 162 are vertically connected to two ends of the main body portion 161, and the main body portion 161 and the branch portions 162 are integrally formed.

The end of the branch part 162 has an upper layer and a lower layer, an interface 164 is formed between the upper layer and the lower layer in a hollow manner, and the interface 164 is clamped with the clamping part 313 of the junction box cover 3.

In addition, as shown in fig. 5, for the installation of the junction box base 1 with the profile, the lower surface of the branch part 162 has a guide groove 163, and the guide groove 163 can be fitted with the profile such that the guide groove 163 is fitted to the profile.

The side of the branch part 162 is provided with a through hole 165, and the through hole 165 is connected with the section bar in a matching way.

In the three-phase component 2, as shown in fig. 6 and 7, the snap plates 22 include three, one of the snap plates 22 is disposed between two columns of the wiring holes 23, and the other two snap plates 22 are respectively disposed between the wiring holes 23 and the edge of the base 21. The clamping plate 22 is divided into three parts for avoiding the intersection of the transverse plate 142 and the longitudinal plate 141 in the junction box base 1, and threaded holes 15 are arranged.

In addition, on the same straight line with the wiring holes 23, auxiliary pieces 24 are respectively arranged on two sides of each wiring hole 23, and the auxiliary pieces 24 are perpendicular to the base 21. A recess 17 is also correspondingly provided in the bottom of the terminal box base 1, into which recess 17 the auxiliary element 24 is inserted for assisting the assembly of the three-phase component 2 with the terminal box base 1.

In this embodiment, the height of the auxiliary member 24 does not exceed the height of the chucking plate 22.

In order to fix the three-phase component 2 to the terminal box base 1, the base 21 is further provided with a threaded hole 15 located in the middle of the wiring hole 23, and the three-phase component 2 and the terminal box base 1 are fixedly connected by being assembled with the threaded hole 15 through a screw.

In the three-phase component 2, the thickness of the base 21 is not more than 9 mm. The height from the top end of the clamping plate 22 to the base 21 is not more than 23 mm. In the terminal block base 1, the height from the upper end 16 to the bottom of the housing 11 is not more than 50 mm.

As shown in fig. 8 and 9, the terminal box cover 3 includes a body 31, two slots 32 are disposed on the body 31, the body 31 further includes a blocking portion 33 located below the slots 32, the blocking portion 33 extends downward from one side wall of the slots 32 or a lower surface of the body 31 and toward another surface of the slots 32, and a projection of the blocking portion 33 on a plane where the slots 32 are located at least partially coincides with the slots 32. The junction box cover 3 is clamped into the upper end part 16 of the junction box base 1 to seal the cavity.

Specifically, the blocking portion 33 is arc-shaped or inclined. The angle of inclination of the blocking portion 33 does not exceed 45 °.

The main body 31 is a rectangular square plate cut at four corners, the four corners of the main body 31 are respectively provided with a long side portion 311 and a short side portion 312 which are perpendicular to each other, the long side portion 311 and the short side portion 312 are matched with the upper end portion 16 of the junction box base 1, and the main body 31 is clamped into the upper end portion 16 of the junction box base 1.

The long side portion 311 has a clamping portion 313 extending outward, the length of the clamping portion 313 does not exceed the long side portion 311 of the main body portion 31, the width of the clamping portion 313 does not exceed the short side portion 312 of the main body portion 31, and the clamping portion 313 is used for clamping with the junction box base 1, so that the junction box cover 3 is clamped into the junction box base 1.

The body portion 31 is further provided with at least one screw hole, which is provided in the middle of the slot hole 32. The wiring box cover 3 and the wiring box base 1 are fixedly connected through screws penetrating through the screw holes.

In the terminal cover 3, the distance from the upper surface of the terminal cover 3 to the stopper 33 is not more than 8mm, and the thickness of the stopper 33 is not more than 2 mm.

The junction box base 1, the three-phase part 2 and the junction box cover 3 are assembled into a complete junction box 100, the junction box 100 can simultaneously meet the input of single phase, three phase and direct current, and the junction box is multifunctional, convenient and tidy.

The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. The utility model provides a terminal box base of power distribution unit, its characterized in that, the terminal box base includes the casing, the casing forms a cavity, the connecting piece has in the cavity, be provided with the mounting hole of two lines three rows on the connecting piece, three in the first line the inside wire is connected to the mounting hole, three in the second line the input cable conductor is connected to the mounting hole, the cavity is still including the chamber that holds that is used for holding three-phase part.

2. The terminal block base of the power distribution unit of claim 1, wherein the bottom of the housing has two relatively independent portions, the cavity is divided into two portions, and an elongated bayonet is provided between the two portions, and the three-phase component is inserted into the bayonet such that the three-phase component is received in the receiving cavity.

3. The terminal box base of the power distribution unit according to claim 1, wherein the cavity has a partition plate therein, the partition plate comprises a transverse plate and two longitudinal plates perpendicular to a horizontal plane, the longitudinal plates are arranged in parallel and respectively intersect with the transverse plate, and the partition plate divides the accommodating cavity into two rows and three columns, which are respectively corresponding to the mounting holes.

4. The terminal box base of the power distribution unit of claim 3, wherein the intersection of the transverse plate and the longitudinal plate is provided with a threaded hole for mounting a terminal box cover.

5. The terminal box base of the power distribution unit according to claim 4, wherein the housing includes an upper end portion disposed at four corners of the cavity, the upper end portion includes a main body portion and two branch portions, the two branch portions are horizontally disposed, the two branch portions are vertically connected to two ends of the main body portion, and the main body portion and the two branch portions are integrally formed.

6. The terminal box base of a power distribution unit according to claim 5, wherein the lower surface of the branch part has a guide groove which is engaged with a profile such that the guide groove is fitted to the profile.

7. The terminal box base of the power distribution unit as claimed in claim 6, wherein the end of the branch portion has an upper layer and a lower layer, the upper layer and the lower layer are hollow to form an interface, and the interface is engaged with the terminal box cover clamping portion.

8. The terminal box base of a power distribution unit as recited in claim 7, wherein the side of the branch portion is provided with a through hole, and the through hole is connected with the profile in a fitting manner.

9. The terminal box base of the power distribution unit of claim 1, wherein each of the mounting holes is further provided with a metal press plate.

10. A junction box for a power distribution unit, comprising a junction box base as claimed in any one of claims 1 to 9, and further comprising a junction box cover, wherein the junction box cover is snapped into an upper end of the junction box base to close the cavity.