CN218069743U - Low-voltage switch electric appliance - Google Patents

Abstract

The application discloses a low-voltage switch electric appliance, which comprises a shell, wherein an installation space is formed in the shell, a circuit assembly is arranged in the installation space, a left wiring terminal group and a right wiring terminal group are further arranged in the installation space, the left wiring terminal group and the right wiring terminal group respectively comprise a first wiring assembly and a second wiring assembly, the first wiring assembly and the second wiring assembly are arranged along the length direction of the shell, the first wiring assembly comprises a first wiring screw and a first wiring frame, the second wiring assembly comprises a second wiring screw and a second wiring frame, and the first wiring assembly is closer to the outer portion of the shell relative to the second wiring assembly. The application provides a low-voltage switch electrical apparatus, it is bigger to the clamping-force of wire, and the centre gripping is more stable.

Description

Low-voltage switch electric appliance

Technical Field

The application relates to the technical field of low-voltage electricity, in particular to a low-voltage switch electric appliance, such as an isolating switch, an air switch, a leakage protection switch and the like.

Background

The low-voltage switch electrical apparatus kind has a lot, for example the circuit breaker is isolator, air switch, earth leakage protection switch, and it all has a casing, all is equipped with the binding post subassembly (being inlet wire end binding post and load end binding post respectively) at the left and right both ends of casing, connects on the return circuit that needs the protection through binding post to can realize protecting the circuit.

The structure of the common circuit breaker is disclosed in CN211350549U, and each circuit breaker, whether it is a wire inlet terminal or a load terminal, has only one binding screw, which can meet the requirements of customers in the conventional installation field. However, in some environments where a greater clamping force is required for the wire, the terminal structure of such a binding screw is not satisfactory.

Therefore, it is difficult to design a terminal with a more stable wire clamping to meet the needs of customers.

Disclosure of Invention

In view of this, the present application aims to overcome the defects in the prior art, and aims to provide a low-voltage switch electrical apparatus capable of improving the clamping force on a wire.

The application provides a low-voltage switch electric appliance, which comprises a shell, a switch and a switch, wherein an installation space is arranged in the shell; a line assembly is arranged in the installation space; the mounting space is also internally provided with a left wiring terminal group, a right wiring terminal group, a left wiring terminal group and a right wiring terminal group; the left wiring terminal group and the right wiring terminal group respectively comprise a first wiring component and a second connecting component, and the first wiring component and the second connecting component are arranged along the length direction of the shell; the first wiring assembly comprises a first wiring screw and a first wiring frame, the second wiring assembly comprises a second wiring screw and a second wiring frame, and the first wiring assembly is closer to the outside of the shell relative to the second wiring assembly.

In some embodiments of the present application, the housing includes a side wall, a lateral rib, and a lateral rib extending in a thickness direction of the housing, the side wall, the lateral rib, and the lateral rib surrounding a wiring space formed to accommodate the left wiring terminal group and/or to accommodate the right wiring terminal group; the casing extends vertically along casing thickness direction and separates the muscle, vertically separate the muscle and become first wiring space and second wiring space with the wiring space partition, first wiring space is used for placing first wiring subassembly, and second wiring space is used for placing the second and connects the subassembly.

In some embodiments of the present application, the housing includes a left half shell and a right half shell, each of which is provided with a sidewall, a transverse rib, a lateral rib, and a longitudinal partition rib.

In some embodiments of the present application, the left and right half shells each extend in a thickness direction with a transverse spacing rib; the transverse spacing ribs are distributed in the first wiring space and the second wiring space; the two sides of the first wiring frame and the second wiring frame in the thickness direction are attached to the corresponding transverse spacing ribs (19); the height of the transverse spacing ribs is lower than that of the longitudinal spacing ribs.

In some embodiments of the present application, the connector further includes a conductive bar including a wire connection portion penetrating the first wire connection frame and the second wire connection frame and a connection portion connected to the wire connection portion, wherein the connection portion is tightly attached to the lateral rib.

In some embodiments of the present application, the lower surface of the portion of the wire connecting portion penetrating into the first wire connecting frame and the second wire connecting frame is a first concave-convex surface; the first wiring screw penetrates through the first wiring frame to abut against the upper surface of the wiring part, and the second wiring screw penetrates through the second wiring frame to abut against the upper surface of the wiring part; the first wiring frame is moved to clamp the wire by driving the first wiring screw to rotate, and the second wiring frame is moved to clamp the wire by driving the second wiring screw to rotate.

In some embodiments of the application, still be provided with spacing arch on the limit wall, spacing arch is located first wiring space, and first wire frame is pasted with spacing arch and vertical partition muscle respectively in the ascending both sides of length direction.

In some embodiments of the present application, the first wire frame has a first wire insertion space, the second wire frame has a second wire insertion space, the first wire insertion space is communicated with the second wire insertion space, and a bottom surface of the second wire insertion space is higher than a bottom surface of the first wire insertion space.

In some embodiments of the present application, a bottom surface of the first wire access space is a second concave-convex surface; one side of the first wiring frame (32,32 ') adjacent to the outer portion of the shell is provided with a wire blocking portion (322, 322') in the height direction, and the wire blocking portion (322, 322 ') is arranged away from the first wiring frame (32,32').

In some embodiments of the present application, the low voltage switching device is an isolation switch, and the circuit component is a switching on/off mechanism; or, the low-voltage switch electric appliance is a circuit breaker, and the circuit component is a switching-on/off mechanism; the low-voltage switch electric appliance is an electric leakage protection circuit breaker, and the circuit component is a switching-on/off mechanism or an electric leakage protection component.

Compared with the prior art, the low-voltage switch electric appliance has the beneficial effects that the low-voltage switch electric appliance comprises a shell (1) and a switch, wherein an installation space is arranged in the shell; an installation space is arranged in the inner part; a line assembly is arranged in the installation space; the mounting space is also internally provided with a left wiring terminal group, a right wiring terminal group, a left wiring terminal group and a right wiring terminal group; the left wiring terminal group and the right wiring terminal group at least comprise a first wiring component (3,3 ') and a second connecting component (4,4 '), and the first wiring component and the second connecting component (4,4 ') are arranged along the length direction of the shell; the first wiring component (3,3 ') comprises a first wiring screw (31,31') and a first wiring frame (32,32 '), and the second wiring component (4,4') comprises a second wiring screw (41,41 ') and a second wiring frame (42,42'), and the first wiring component (3,3 ') is closer to the outer portion of the casing than the second wiring component (4,4').

Whether the left wiring terminal group or the right wiring terminal group is provided with two groups of wiring components, namely a first wiring component (3,3 ') and a second wiring component (4,4'), wherein the first wiring component (3,3 ') and the second wiring component (4,4') are arranged along the length direction of the shell, when wires are connected, the wires penetrate into the first wiring frame (32,32 ') and the second wiring frame (42,42'), and then the first wiring screw (31,31 ') and the second wiring screw (41,41') are respectively screwed, so that the same section of wires are clamped by the two wiring components, and the clamping force of the same section of wires is larger. At the same time, the depth of penetration of the conductor is also longer compared to the prior art, which also makes the connection more stable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 shows a schematic diagram of a circuit breaker of embodiment 1 of the present invention after removing a right housing;

FIG. 2 shows a front view of FIG. 1;

fig. 3 shows a schematic view of the left housing in embodiment 1 of the present invention;

fig. 4 shows a schematic view of the right housing in embodiment 1 of the present invention;

fig. 5 is a schematic view of a right connection terminal set of the present invention;

fig. 6 shows a schematic diagram of an isolator switch according to embodiment 2 of the present invention;

fig. 7 shows a schematic view of a drain electrode of a leakage protection breaker according to embodiment 3 of the present invention;

fig. 8 shows the schematic diagram of the air switch of the leakage protection circuit breaker according to embodiment 3 of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example 1

As shown in fig. 1 to 5, an embodiment of the present application provides a circuit breaker, including a housing 1 having an installation space therein; the installation space is divided into three parts, and the middle accommodation space 21 for setting up circuit assembly, the both sides of accommodation space 21 are the wiring space who sets up left terminal group and right terminal group.

Here, the circuit component is a switching-on/off mechanism, the switching-on/off mechanism includes a four-bar mechanism and a moving contact and a stationary contact, and the moving contact and the stationary contact can be driven by the four-bar mechanism to realize switching-on and switching-off of the circuit breaker, and here, the switching-on/off mechanism is common knowledge, so that the detailed description is omitted, and meanwhile, only the set spatial position of the switching-on/off mechanism is expressed in the drawing, that is, the switching-on/off mechanism is set in the accommodating space 21.

The left wiring terminal group comprises a first wiring component 3,3 ' and a second connection component 4,4 ', the first wiring component 3,3 ' and the second connection component 4,4 ' are arranged along the direction of the length direction X of the shell, the first wiring component 3,3 ' is located on the outer side of the second connection component 4,4 ', namely the first wiring component 3,3 ' is closer to the outer portion of the shell, and when a lead is connected, the lead firstly passes through the first wiring component 3,3 ' and then passes through the second connection component 4,4 '.

Similarly, the right connection terminal group also includes a first connection component 3,3 ' and a second connection component 4,4 ', the arrangement manner of which is the same as that of the left connection terminal group, and the arrangement manner of which the first connection component 3,3 ' is closer to the outside of the housing is also the same, and the description is omitted here.

In the present embodiment, the wiring space is formed by surrounding the side wall 11,11 ', the transverse rib 12,12 ' and the lateral rib 13,13 ' extending from the housing. Meanwhile, the shell is also extended with a longitudinal separation rib 14,14 ', 14 ', a longitudinal separation rib 14,14 ', 14 ', 14 ' divides the wiring space into a first wiring space 15,15 ' and a second wiring space 16,16 ', the first wiring space 15,15 ' is used for placing the first wiring component 3,3 ', and the second wiring space 16,16 ' is used for placing the second wiring component 4,4 '. Here, the side walls 11,11 ', the transverse ribs 12,12 ', the lateral ribs 13,13 ', and the longitudinal partition ribs 14,14 ', 14 ", 14 '" all extend in the case thickness direction Y. Thus, the first connection component 3,3 ' and the second connection component 4,4 ' can move in respective ranges without interfering with each other by the separation effect of the longitudinal separation ribs 14,14 ', 14 ' and 14 '. Here, the wiring space surrounded by the side wall 11, the transverse rib 12 and the lateral rib 13 is used for placing the left wiring terminal set, and the wiring space surrounded by the side wall 11 ', the transverse rib 12 ' and the lateral rib 13 ' is used for placing the right wiring terminal set.

In the present embodiment, the housing 1 is formed by assembling the left half shell 17 and the right half shell 18 in a snap-fit and riveting manner, which is common knowledge and will not be described herein again. Here, the side walls 11,11 ', the transverse ribs 12,12 ' and the lateral ribs 13,13 ' are formed on the left half shell 17, while the longitudinal separating ribs 14,14 ', 14 ", 14 '" are formed on both the left half shell 17 and the right half shell 18.

Here, longitudinal partition rib 14' are formed on left half shell 17, and longitudinal partition rib 14 ″ are formed on right half shell 18. The longitudinal partition rib 14 corresponds to the longitudinal partition rib 14 ″, and both of them partition the wiring space into a first wiring space 15 and a second wiring space 16. The longitudinal separation rib 14 'corresponds to the longitudinal separation rib 14', and the two ribs jointly separate the wiring space into a first wiring space 15 'and a second wiring space 16'.

In the present embodiment, the left half shell 17 and the right half shell 18 each extend in the thickness direction with a transverse spacer rib 19, and the height of the transverse spacer rib 19 is lower than that of the longitudinal partition ribs 14,14 ', 14 ", 14'" (that is, the transverse spacer rib is shorter than the longitudinal partition rib as viewed in the shell thickness direction Y). The transverse spacing ribs 19 are distributed in the first wiring space 15,15 'and the second wiring space 16,16', so that the two sides of the first wiring frame 32,32 'and the second wiring frame 42,42' in the thickness direction can be attached to the corresponding transverse spacing ribs 19, that is, the movement of the wiring frames can be more stable in the process of moving up and down by attaching to the transverse spacing ribs 19, and the phenomenon that the wiring frames are deflected and blocked is prevented.

In the present embodiment, the first wire connection component 3,3 'includes a first wire connection screw 31,31', a first wire connection frame 32,32 'and a conductive row 5, and the second wire connection component 4,4' includes a second wire connection screw 41,41 ', a second wire connection frame 42,42' and a conductive row 5.

The conductor bar 5 comprises a connection portion 51 and a connection portion 52 connected to each other. The wire connecting portion 51 is disposed through the first wire connecting frame 32,32 ' and the second wire connecting frame 42,42 ', and the connecting portion 52 is disposed closely adjacent to the lateral rib 13,13 '.

The lower surface of the part of the wiring part 51 penetrating into the first wiring frame 32,32 'and the second wiring frame 42,42' is a first concave-convex surface, which is equivalent to a rough surface; the first wiring screw 31,31 'penetrates through the first wiring frame 32,32' to abut against the upper surface of the wiring part 51, and the second wiring screw 41,41 'penetrates through the second wiring frame 42,42' to abut against the upper surface of the wiring part 51; the first wiring frame 32,32 'is moved to clamp the wires by driving the first wiring screw 31,31' to rotate, and the second wiring frame 42,42 'is moved to clamp the wires by driving the second wiring screw 41,41' to rotate, wherein the moving directions of the first wiring frame 32,32 'and the second wiring frame 42,42' are parallel to the height direction Z of the shell.

In this embodiment, the side wall 11,11 ' is further provided with a limiting protrusion 111,111 ', and the limiting protrusion 111,111 ' extends along the length direction X of the housing. Here, the limiting protrusions 111,111 ' are located in the first wire connecting space 15,15 ', so that the two sides of the first wire connecting frame 32,32 ' in the length direction can be attached to the limiting protrusions 111,111 ' and the longitudinal separating ribs 14,14 ', 14 ", respectively, to further ensure the prevention of the deflection of the wire connecting frame.

In this embodiment, the first wire frame 32,32 'has the first wire receiving space 33, the second wire frame 42,42' has the second wire receiving space 43, the first wire receiving space 33 is communicated with the second wire receiving space 43, and the bottom surface of the second wire receiving space 43 is higher than the bottom surface of the first wire receiving space 33, so that the wire can be bent at the front height difference after being screwed, which is more beneficial to improving the clamping force of the wire.

In this embodiment, the bottom surface of the first wire insertion space 33 is a second concave-convex surface, which is also rough to improve the clamping force on the wire.

In this embodiment, the first wire frame 32,32 'is provided with the wire blocking portions 322, 322' adjacent to one side of the exterior of the housing, that is, adjacent to the wire connecting hole of the housing, and the wire blocking portions 322,322 'are arranged along the height direction Z of the housing, specifically, along the direction away from the first wire frame (32,32'), which can prevent the wires from entering by mistake by using the wire blocking portions, so that the wire connection is safer.

Although only a single-pole breaker is illustrated in the present embodiment, the above structure can be applied to 2-pole, 3-pole or 4-pole breakers, and the rated current of the breaker can be 16 to 125A.

Example 2

As shown in fig. 6, embodiment 2 is an isolating switch, and is different from embodiment 1 only in that a circuit component in an accommodating space 21 is different, the circuit component here is a switching-on/off mechanism of the isolating switch, and the switching-on/off mechanism of the isolating switch is also a known technology in the field, and adopts a form of a handle, a connecting rod, a contact support, a movable contact bridge arranged on the contact support, and a static contact arranged statically in a housing, and the contact support is driven to move by the handle, so that the movable contact bridge and the static contact are attached to and separated from each other.

Example 3

As shown in fig. 7-8, embodiment 3 is an earth leakage protection circuit breaker, which includes a two-pole structure, one of which is a null switch pole, as shown in fig. 8, the structure of which is the same as that of embodiment 1, and the circuit component of which is a switching mechanism, where the switching mechanism includes a four-bar mechanism and moving and static contacts, and the four-bar mechanism can drive the moving and static contacts to realize switching on and switching off of the circuit breaker.

The other electrode is a drain electrode 321, which sets the circuit component as a leakage protection component, where the leakage protection component includes a switching on/off mechanism, a circuit board, a zero sequence transformer, and the like, and the leakage protection component is also common knowledge and therefore will not be described again.

Although only two-pole earth leakage circuit breakers are illustrated in the embodiment, the earth leakage circuit breaker can also be applied to 3-pole or even 4-pole earth leakage circuit breakers, and the rated current of the breaker can also be 16-125A.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. A low-voltage switching apparatus, comprising:

a housing (1) in which an installation space is provided;

a line assembly is arranged in the installation space;

the method is characterized in that:

the left wiring terminal group and the right wiring terminal group are arranged in the installation space, each of the left wiring terminal group and the right wiring terminal group at least comprises a first wiring assembly (3,3 ') and a second wiring assembly (4,4'), the first wiring assembly (3,3 ') and the second wiring assembly (4,4') are arranged along the length direction of the shell, the first wiring assembly (3,3 ') comprises a first wiring screw (31,31') and a first wiring frame (32,32 '), the second wiring assembly (4,4') comprises a second wiring screw (41,41 ') and a second wiring frame (42,42), and the first wiring assembly (3,3') is closer to the outside of the shell relative to the second wiring assembly (4,4).

2. <xnotran> 1 , : (1) (5283 zxft 5283 `), (5329 zxft 5329 `) (5657 zxft 5657 `), (3264 zxft 3264 `), (3282 zxft 3282 `) (3434 zxft 3434 `) / ; (1) (3825 zxft 3825 `,14` `,14` ` `), (3638 zxft 3638 `,14` `,14` ` `) (3724 zxft 3724 `) (4924 zxft 4924 `), (6242 zxft 6242 `) (8583 zxft 8583 `), (9843 zxft 9843 `) (3524 zxft 3524 `). </xnotran>

3. A low-voltage switch apparatus as claimed in claim 2, characterized in that the housing (1) comprises a left half shell (17) and a right half shell (18), and the left half shell (17) and the right half shell (18) are provided with side walls (11,11 '), transverse ribs (12,12 '), lateral ribs (13,13 ') and longitudinal partition ribs (14,14 ', 14 ').

4. A low-voltage switch apparatus according to claim 3, characterized in that the left half-shell (17) and the right half-shell (18) extend out of a transverse spacing rib (19) along the thickness direction, the transverse spacing rib (19) is distributed in a first wiring space (15,15 ') and a second wiring space (16,16'), and the first wiring frame (32,32 ') and the second wiring frame (42,42') are attached to the corresponding transverse spacing rib (19) on two sides in the thickness direction; the height of the transverse spacing ribs (19) is lower than that of the longitudinal spacing ribs (14,14 ', 14').

5. A low-voltage switch apparatus according to claim 2,3 or 4, characterized in that it further comprises a conductive bar (5) comprising a wire connection portion (51) penetrating through the first wire connection frame (32,32 ') and the second wire connection frame (42,42 ') and a connection portion connected with the wire connection portion (51), the connection portion being disposed close to the lateral rib (13,13 ').

6. A low-voltage switch apparatus as claimed in claim 5, wherein the connection portion (51) penetrates into the first and second connection frames (32,32 ') and (42,42 ') and has a first concave-convex surface on the lower surface, the first connection screw (31,31 ') passes through the first connection frame (32,32 ') to abut against the upper surface of the connection portion (51), the second connection screw (41,41 ') passes through the second connection frame (42,42 ') to abut against the upper surface of the connection portion (51), the first connection frame (32,32 ') moves the clamping wire by driving the first connection screw (865 31,31 ') to rotate, and the second connection frame (3525 zxft 3579) moves the clamping wire by driving the second connection screw (3579 ') to rotate.

7. A low-voltage switch apparatus as claimed in claim 2,3 or 4, wherein said side wall (11,11 ') is further provided with a limit protrusion (111, 111 '), said limit protrusion (111, 111 ') is located in said first wiring space (15,15 '), and said first wiring frame (32,32 ') is attached to said limit protrusion (111, 111 ') and said longitudinal separation rib (14,14 ', 14 ") at both sides in the length direction.

8. The low-voltage switch apparatus as claimed in claim 1, wherein the first wire frame (32,32 ') has a first wire insertion space (33), the second wire frame (42,42') has a second wire insertion space (43), the first wire insertion space (33) and the second wire insertion space (43) are communicated, and the bottom surface of the second wire insertion space (43) is higher than the bottom surface of the first wire insertion space (33).

9. The low-voltage switch apparatus as claimed in claim 8, wherein the bottom surface of the first wire insertion space (33) is a second concave-convex surface, a wire blocking portion (322, 322 ') is arranged on one side of the first wire frame (32,32') adjacent to the outside of the housing in the height direction, and the wire blocking portion (322, 322 ') is arranged away from the first wire frame (32,32').

10. The low-voltage switch electric appliance according to claim 1, wherein the low-voltage switch electric appliance is an isolating switch, and the circuit component is a switching-on/off mechanism; or, the low-voltage switch electric appliance is a circuit breaker, and the circuit component is a switching-on/off mechanism; or, the low-voltage switch electric appliance is an earth leakage protection circuit breaker, and the circuit component is a switching-on/off mechanism or an earth leakage protection group.

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