CN221552580U - Leakage protection assembly and distribution box - Google Patents

Abstract

Embodiments of the present disclosure provide a leakage protection assembly and a distribution box. The leakage protection assembly comprises a base, wherein a neutral busbar and a phase busbar are arranged on the base; and the outer side surface of the leakage protection device is provided with a pair of clamping pieces, one clamping piece in the pair of clamping pieces is matched with the neutral busbar, and the other clamping piece in the pair of clamping pieces is matched with the phase busbar.

Description

Leakage protection assembly and distribution box

Technical Field

Embodiments of the present disclosure relate generally to the field of electrical equipment technology, and more particularly, to a leakage protection assembly and a power distribution box including the same.

Background

The distribution box is a device for assembling an earth leakage protection device, a measuring instrument, a protection circuit and auxiliary equipment together according to the electric wiring requirements.

Under the condition that an electric leakage protection device and a power distribution structure are installed in a conventional distribution box, the wire inlet side of the electric leakage protection device is connected to the power distribution structure in a threaded and cable connection mode, so that on one hand, the installation cost is high, and on the other hand, the complicated cable increases the maintenance difficulty and also increases the safety risk, thereby causing the problems of high installation cost, high maintenance difficulty and high safety risk of the conventional distribution box.

Disclosure of utility model

It is an object of the present disclosure to provide a leakage protection assembly and a distribution box to at least partially solve the above-mentioned problems.

In a first aspect of the present disclosure, there is provided a leakage protection assembly comprising a base having a neutral busbar and a phase busbar disposed thereon; and the outer side surface of the leakage protection device is provided with a pair of clamping pieces, one clamping piece in the pair of clamping pieces is matched with the neutral busbar, and the other clamping piece in the pair of clamping pieces is matched with the phase busbar.

According to the embodiment of the disclosure, a pair of clamping pieces is arranged on the outer side surface of the leakage protection device, wherein one clamping piece is matched with the neutral busbar, and the other clamping piece is matched with the phase busbar; therefore, the leakage protection device can be connected to the distribution structure through the clamping piece without a connecting mode of threads and cables, so that the problems of high installation cost, high maintenance difficulty and high safety risk of a conventional distribution box are solved.

In some embodiments, a limiting plate is further disposed on the base, a limiting member matched with the limiting plate is further disposed on an outer side face of the leakage protection device, and the limiting member is disposed between the pair of clamping members.

In some embodiments, the busbar comprises a main body portion and a connecting portion provided on the main body portion, the clamping member comprises a first clamping plate and a second clamping plate spaced apart from the first clamping plate, and a clamping space for clamping the connecting portion of the neutral busbar and the busbar is formed between the first clamping plate and the second clamping plate.

In some embodiments, the body portion includes a first body portion, a second body portion, and a third body portion disposed between the first body portion and the second body portion, and the first body portion, the third body portion, and the second body portion are spaced apart.

In some embodiments, the connection portion includes a first connection portion disposed on the first body portion, a second connection portion disposed on the second body portion, and a third connection portion disposed on the first end face of the third body portion, one end of the first connection portion extending to the third body portion and being spaced apart from the first end face, one end of the second connection portion extending to the third body portion and being spaced apart from the first end face.

In some embodiments, the neutral bus bars are arranged in pairs, the earth leakage protection assembly further comprising a neutral connector located between and connected to the pair of neutral bus bars, the phase bus bars being located between and spaced apart from the pair of neutral bus bars.

In some embodiments, the base includes a first base and a first insulating shell disposed on a side of the first base facing the earth leakage protection device.

In some embodiments, the base further comprises a second base clamped with the first base and a second insulating shell arranged on a side face, facing the leakage protection device, of the second base, a through hole is formed in the first base, the phase busbar penetrates through the through hole and is arranged on the second base, and the phase busbar is wrapped by the second insulating shell.

In some embodiments, a third insulating shell is further disposed on a side of the second base facing the earth leakage protection device, and the neutral busbar is disposed on the second base and is surrounded by the third insulating shell.

In a second aspect of the present disclosure, there is provided a power distribution box comprising: a leakage protection assembly according to any one of the first aspects of the present disclosure.

It should be understood that what is described in this section is not intended to limit the key features or essential features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The above and other features, advantages and aspects of embodiments of the present disclosure will become more apparent by reference to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, wherein like or similar reference numerals denote like or similar elements, in which:

FIG. 1 illustrates an exploded schematic view of a leakage protection assembly according to some embodiments of the present disclosure;

FIG. 2 is a schematic view showing a partial structure of the earth leakage protection assembly shown in FIG. 1, wherein the earth leakage protection device is not shown;

FIG. 3 illustrates a structural schematic of a base according to some embodiments of the present disclosure;

Fig. 4 illustrates a schematic structural view of a neutral busbar, a phase busbar, a neutral connector, and a neutral terminal row according to some embodiments of the present disclosure;

Fig. 5 illustrates an electrical connection schematic of a leakage protection assembly according to some embodiments of the present disclosure.

Reference numerals illustrate:

100 is a leakage protection component;

1 is a base, 11 is a first base, 111 is a through hole, 12 is a second base, 121 is a limiting plate, 122 is a first mounting groove, 123 is a second mounting groove, 13 is a first insulating shell, 14 is a second insulating shell, 141 is a first connecting hole, 15 is a third insulating shell, and 151 is a second connecting hole;

2 is a neutral busbar, and 21 is a conducting part;

3 is a busbar, 31 is a main body part, 311 is a first main body part, 312 is a second main body part, 313 is a third main body part, 3131 is a first end face, 314 is a fourth main body part, 315 is a fifth main body part, 316 is a sixth main body part, 32 is a connecting part, 321 is a first connecting part, 322 is a second connecting part, 323 is a third connecting part;

4 is a neutral connector;

5 is a leakage protection device; 51 is a clamping member, 511 is a first clamping plate, 512 is a second clamping plate, and 52 is a limiting member;

6 is a neutral terminal block; 7 is a ground terminal block.

Detailed Description

Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present disclosure are illustrated in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The term "comprising" and variations thereof as used herein means open ended, i.e., "including but not limited to. The term "or" means "and/or" unless specifically stated otherwise. The term "based on" means "based at least in part on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment. The term "another embodiment" means "at least one additional embodiment". The terms "first," "second," and the like, may refer to different or the same object.

As described hereinabove, in the case where the conventional distribution box mounts the earth leakage protection device and the distribution structure, the line-in side of the earth leakage protection device is generally connected to the distribution structure by means of a screw and cable connection. On one hand, the connection mode of the screw thread and the cable leads to higher installation cost, and on the other hand, the complicated cable increases maintenance difficulty and also increases safety risk. Embodiments of the present disclosure provide a leakage protection assembly 100 and a distribution box to solve the problems of high installation cost, high maintenance difficulty and high safety risk of conventional distribution boxes. Hereinafter, the principles of the present disclosure will be described with reference to fig. 1 to 5.

Fig. 1 illustrates an exploded schematic view of a leakage protection assembly 100, according to some embodiments of the present disclosure. Fig. 2 shows a partial schematic view of the earth leakage protection assembly 100 shown in fig. 1, in which the earth leakage protection device 5 is not shown. Fig. 3 illustrates a schematic structural view of a base 1 according to some embodiments of the present disclosure. Fig. 4 shows a schematic structural view of a neutral busbar 2, a phase busbar 3, a neutral connector 4, and a neutral terminal row 6 according to some embodiments of the present disclosure. As shown in fig. 1 to 4, the earth leakage protection assembly 100 described herein generally includes a base 1, a neutral busbar 2, a phase busbar 3, a neutral connection 4, an earth leakage protection device 5, and a neutral terminal strip 6.

As shown in fig. 1 to 4, in some embodiments, the base 1 serves as a mounting carrier, which is mainly used for mounting the neutral busbar 2, the phase busbar 3, the neutral connection 4, the earth leakage protection device 5 and the neutral terminal strip 6. The neutral busbar 2 and the phase busbar 3 are arranged on the base 1. The outer side surface of the leakage protection device 5 is provided with a pair of clamping pieces 51, and the clamping pieces 51 are made of conductive materials. One clamping member 51 of the pair of clamping members 51 is engaged with the neutral busbar 2, and the other clamping member 51 of the pair of clamping members 51 is engaged with the phase busbar 3.

With the above configuration, the pair of the clamping pieces 51 is provided on the outer side surface of the earth leakage protection device 5, one of the clamping pieces 51 is fitted with the neutral bus bar 2, and the other clamping piece 51 is fitted with the phase bus bar 3; therefore, the leakage protection device 5 is not required to be connected to the distribution structure through the connection mode of the threads and the cables, so that the problems of high installation cost, high maintenance difficulty and high safety risk of the conventional distribution box are solved.

With continued reference to fig. 1, in some embodiments, each clamp 51 includes a first clamp plate 511 and a second clamp plate 512. The first clamping plate 511 is spaced apart from the second clamping plate 512, and a clamping space is formed between the first clamping plate 511 and the second clamping plate 512 for clamping the neutral busbar 2 and the phase busbar 3.

With continued reference to fig. 4, in some embodiments, the phase busbar 3 includes a main body portion 31 and a connecting portion 32, and the neutral busbar 2 includes a conducting portion. One clamping space clamps the connecting part 32 of the phase busbar 3, and the other clamping space clamps the conducting part 21 of the neutral busbar 2, so that the pair of clamping pieces 51 respectively clamps the phase busbar 3 and the neutral busbar 2, and the pair of clamping pieces 51 are respectively conducted with the phase busbar 3 and the neutral busbar 2.

With continued reference to fig. 2, in some embodiments, the base 1 includes a first base 11 and a second base 12, and the first base 11 and the second base 12 are snapped together to form a unitary structure. The limiting plate 121 is provided on the base 1, specifically, the limiting plate 121 is provided on the second base 12. The outer side surface of the earth leakage protection device 5 is further provided with a limiting member 52, the limiting member 52 is disposed between the pair of clamping members 51, and the limiting member 52 is matched with the limiting plate 121, that is, the limiting member 52 clamps the limiting plate 121. Thus, the earth leakage protection device 5 is more firmly connected with the base 1 through the cooperation of the limiting piece 52 and the limiting plate 121.

With continued reference to fig. 4, in some embodiments, the body portion 31 includes a first body portion 311, a second body portion 312, and a third body portion 312, the third body portion 313 being disposed between the first body portion 311 and the second body portion 312. The first body portion 311, the third body portion 313, and the second body portion 312 are spaced apart, that is, there is no contact between the first body portion 311, the third body portion 313, and the second body portion 312, thereby avoiding occurrence of a short circuit.

Further, the main body 31 further includes a fourth main body 314, a fifth main body 315, and a sixth main body 316, wherein the fourth main body 314 is correspondingly connected to the first main body 311, the fifth main body 315 is correspondingly connected to the second main body 312, and the sixth main body 316 is correspondingly connected to the third main body 313. Obviously, the sixth body portion 316 is disposed between the fourth body portion 314 and the fifth body portion 315, and the fourth body portion 314, the sixth body portion 316, and the fifth body portion 315 are equally spaced apart.

As shown in fig. 3 and 4, the first chassis 11 is provided with through holes 111, and the second chassis 12 is provided with the same number of first mounting grooves 122 as the through holes 111. The phase busbar 3 passes through the through hole 111 and is disposed in the first mounting groove 122 of the second base 12. Obviously, in the case where the main body 31 includes the first main body 311, the second main body 312, and the third main body 313, three through holes 111 are provided in the first base 11, and three first mounting grooves 122 are provided in the second base 12.

With continued reference to fig. 3 to 4, further, the first body portion 311 passes through the through hole 111 and is disposed in the first mounting groove 122 of the second base 12, a portion of the fourth body portion 314 is disposed in the through hole 111, and the first body portion 311 and the fourth body portion 314 are fixed to an inner wall of the through hole 111 by fixing bolts. The second body portion 312 passes through the through hole 111 and is disposed in the first mounting groove 122 of the second base 12, a portion of the fifth body portion 315 is disposed in the through hole 111, and the second body portion 312 and the fifth body portion 315 are fixed to an inner wall of the through hole 111 by fixing bolts. Also, the third body portion 313 passes through the through-hole 111 and is disposed in the first mounting groove 122 of the second base 12, a portion of the sixth body portion 316 is disposed in the through-hole 111, and the third body portion 313 and the sixth body portion 316 are fixed to an inner wall of the through-hole 111 by fixing bolts.

It should be noted that the numbers, values, numbers, etc. mentioned above and as may be referred to elsewhere in the disclosure are exemplary and are not intended to limit the scope of the disclosure in any way. Any other suitable numbers, values, numbers are possible. For example, the through holes 111 and the first mounting slots 122 may also include a greater or lesser number depending on the particular application scenario and requirements.

With continued reference to fig. 3-4, the connection portion 32 includes a first connection portion 321 disposed on the first body portion 311, a second connection portion 322 disposed on the second body portion 312, and a third connection portion 323 disposed on the first end face 3131 of the third body portion 313. Obviously, one of the clamping members 51 on the earth leakage protection device 5 can selectively clamp one of the first connecting portion 321, the second connecting portion 322 and the third connecting portion 323, so as to conduct the earth leakage protection device 5 to one of the busbar 3.

Referring back to fig. 2, a second insulating case 14 is provided on the side of the second base 12 facing the earth leakage protection device 5. The phase busbar 3 is surrounded by a second insulating shell 14 to play an IP protective role by the second insulating shell 14. More specifically, the second insulating case 14 wraps portions of the first, second, and third body parts 311, 312, and 313, and wraps the first, second, and third connection parts 321, 322, and 323.

Further, referring to fig. 4, one end of the first connecting portion 321 extends to the third body portion 313 and is spaced apart from the first end face 3131. One end of the second connecting portion 322 extends to the third body portion 313 and is spaced apart from the first end face 3131. Correspondingly, referring to fig. 2, a first connection hole 141 is provided at a position of the second insulating case 14 corresponding to the third body portion 313. The first connection hole 141 can facilitate the passage of the holder 51 through the second insulating case 14 and connect the holder 51 with the first connection portion 321, the second connection portion 322, or the third connection portion 323 within the second insulating case 14.

Referring to fig. 3 and 4, in some embodiments, the neutral bus bars 2 are disposed in pairs on either side of the phase bus bar 3. The second base 12 is provided with a second mounting groove 123, and the neutral busbar 2 is arranged in the second mounting groove 123. With continued reference to fig. 2, a third insulating housing 15 is provided on the side of the second base 12 facing the earth leakage protection device 5. The neutral bus bar 2 is surrounded by a third insulating housing 15 to play an IP protective role by the third insulating housing 15.

Further, with continued reference to fig. 2, the third insulating housing 15 is provided with a second connection hole 151. The second connection hole 151 can facilitate the passage of the clip 51 through the third insulating case 15 and connect the clip 51 with the conductive portion 21 in the third insulating case 15, so that the clip 51 passes through the second connection hole 151 and is connected with the neutral bus bar 2.

With continued reference to fig. 4, in some embodiments, a neutral connection 4 is provided between the neutral bus bars 2. The neutral connectors 4 are respectively connected with the paired neutral bus bars 2. The neutral busbar 2 is also connected with the neutral terminal block 6, and both the neutral terminal block 6 and the neutral connection 4 are mounted on the first base 11. The phase busbar 3 is located between the pair of neutral busbars 2 and is spaced apart from the neutral connection 4. Specifically, the fourth main body 314, the fifth main body 315 and the sixth main body 316 are located above the neutral connector 4 and spaced apart from the neutral connector 4 to avoid the short circuit phenomenon caused by the contact of the busbar 3 with the neutral connector 4.

Referring back to fig. 2, a first insulating case 13 is further provided on the side of the first base 11 facing the earth leakage protection device 5. The fourth main body 314, the fifth main body 315, and the sixth main body 316 are surrounded by the first insulating case 13 to play an IP protection effect through the first insulating case 13.

Fig. 5 illustrates an electrical connection intent of a leakage protection assembly according to some embodiments of the present disclosure.

In some embodiments, the earth leakage protection device 5 may comprise a residual current operated circuit breaker. In other embodiments, the leakage protection device 5 may also include a surge protector or a miniature circuit breaker, etc., without limitation.

Referring to fig. 5, in the case where the earth leakage protection device 5 includes a residual current operated circuit breaker, one of the clamping members 51 of the residual current operated circuit breaker clamps the neutral bus bar 2, and the other clamping member 51 clamps one of the main body portions 31 of the phase bus bar 3. Meanwhile, below the residual current operated circuit breaker is another residual current operated circuit breaker, and one end of the residual current operated circuit breaker is connected to the neutral terminal block 6 by bolts and wires. Meanwhile, the lowest part of the residual current operated circuit breaker is a surge protector, one end of which is clamped to one main body part 31 of the phase busbar 3, and the other end of which is connected to the ground terminal row 7. Meanwhile, the left side of the residual current operated circuit breaker and the surge protector is a miniature circuit breaker, and the miniature circuit breaker includes a 1P circuit breaker, which is connected to one main body portion 31 in the phase busbar 3.

Embodiments of the present disclosure also provide an electrical box including any of the earth leakage protection assemblies 100 described above.

The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvement in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (10)

1. A leakage protection assembly (100), characterized in that the leakage protection assembly (100) comprises:

The base (1), the base (1) is provided with a neutral busbar (2) and a phase busbar (3); and

The electric leakage protection device (5), be provided with on the lateral surface of electric leakage protection device (5) and twine holder (51), one holder (51) in pair of holder (51) with neutral female row (2) cooperation, another holder (51) in pair of holder (51) with the cooperation of female row (3) mutually.

2. The earth leakage protection assembly (100) of claim 1, wherein the base (1) is further provided with a limiting plate (121), the outer side of the earth leakage protection device (5) is further provided with a limiting member (52) cooperating with the limiting plate (121), and the limiting member (52) is disposed between the pair of clamping members (51).

3. The earth leakage protection assembly (100) of claim 1, wherein the busbar (3) comprises a main body portion (31) and a connection portion (32) provided on the main body portion (31), the clamping member (51) comprises a first clamping plate (511) and a second clamping plate (512) spaced apart from the first clamping plate (511), and a clamping space for clamping the neutral busbar (2) and the connection portion (32) of the busbar (3) is formed between the first clamping plate (511) and the second clamping plate (512).

4. The earth leakage protection assembly (100) of claim 3, wherein the body portion (31) comprises a first body portion (311), a second body portion (312), and a third body portion (313) disposed between the first body portion (311) and the second body portion (312), and the first body portion (311), the third body portion (313), and the second body portion (312) are spaced apart.

5. The earth leakage protection assembly (100) of claim 4, wherein the connection portion (32) comprises a first connection portion (321) provided on the first body portion (311), a second connection portion (322) provided on the second body portion (312), and a third connection portion (323) provided on a first end face (3131) of the third body portion (313), one end of the first connection portion (321) extending to the third body portion (313) and being spaced apart from the first end face (3131), one end of the second connection portion (322) extending to the third body portion (313) and being spaced apart from the first end face (3131).

6. The earth leakage protection assembly (100) of claim 1, wherein the neutral bus bars (2) are arranged in pairs, the earth leakage protection assembly (100) further comprising a neutral connector (4) located between and connected to the pair of neutral bus bars (2), the phase bus bars (3) being located between the pair of neutral bus bars (2) and spaced apart from the neutral connector (4).

7. The earth leakage protection assembly (100) of claim 6, wherein the base (1) comprises a first base (11) and a first insulating shell (13) provided on a side of the first base (11) facing the earth leakage protection device (5).

8. The earth leakage protection assembly (100) of claim 7, wherein the base (1) further comprises a second base (12) clamped with the first base (11) and a second insulating shell (14) arranged on a side of the second base (12) facing the earth leakage protection device (5), the first base (11) is provided with a through hole (111), the busbar (3) passes through the through hole (111) and is arranged on the second base (12), and the busbar (3) is wrapped by the second insulating shell (14).

9. The earth leakage protection assembly (100) of claim 8, wherein a third insulating shell (15) is further provided on a side of the second base (12) facing the earth leakage protection device (5), the neutral busbar (2) being provided on the second base (12) and being surrounded by the third insulating shell (15).

10. A power distribution box, characterized in that the power distribution box comprises:

The earth leakage protection assembly (100) according to any one of claims 1 to 9.