CN220065589U - Baffle assembly and circuit breaker - Google Patents

Abstract

The utility model belongs to the technical field of low-voltage electrical appliances and discloses a baffle assembly and a circuit breaker. According to the baffle assembly provided by the utility model, the baffle part and the fixing part are arranged in a staggered manner along the first direction to form the abdication, so that the baffle part is led to avoid the radiating fin which is closer to one of the fixing parts in the wiring rows at two sides of the baffle part, and the assembly is convenient.

Description

Baffle assembly and circuit breaker

Technical Field

The utility model relates to the technical field of piezoelectric devices, in particular to a baffle plate assembly and a circuit breaker.

Background

The drawer type circuit breaker comprises a circuit breaker body and a drawer, wherein the circuit breaker body is arranged in a drawer seat, and the circuit breaker body can be swung out of the drawer seat, so that the replacement and the maintenance are convenient.

In the prior art, interphase separators are generally arranged between wiring rows among different breaker bodies in the drawer type breaker, and when larger voltage impact occurs, interphase short circuit is effectively prevented from being caused when an electric arc is ejected. However, as shown in fig. 1 and 2, the circuit breaker considers the problems of temperature rise and cost, after the circuit breaker is upgraded, the wiring bars 10 are designed to be in a line-in and line-out staggered mode, and the side edges are additionally provided with the cooling fins 20, but the existing interphase partition plates 30 are arranged in a centering manner to generate space interference with the cooling fins 20, so that the interphase partition plates 30 are difficult to install.

Disclosure of Invention

The utility model aims to provide a baffle plate assembly which is convenient for installation of a phase-to-phase baffle plate and does not generate space interference.

To achieve the purpose, the utility model adopts the following technical scheme:

there is provided a bulkhead assembly for a circuit breaker, the bulkhead assembly comprising:

a base;

the interphase separator comprises a fixing part and a separator part connected with the fixing part, wherein the fixing part is detachably connected with the base, and the separator part and the fixing part are arranged in a staggered mode along a first direction.

Optionally, the base includes a plurality of line row portions and a plurality of isolation portion, and a plurality of line row portions is along first direction interval setting, and is adjacent set up between the line row portion isolation portion, line row portion is used for fixing the line row of circuit breaker, fixed part with isolation portion detachable connection.

Optionally, the fixed part is dorsad one side of baffle portion sets up the direction muscle, be provided with the direction slot on the isolation portion, the direction muscle with the direction slot all extends along the second direction and sets up, the direction muscle peg graft in the direction slot.

Optionally, a bump and a hook are arranged on one side of the fixing part, which is away from the partition plate part, and the bump and the hook are respectively positioned on two sides of the fixing part along the second direction; wherein,

the convex blocks are inserted on the isolation parts, and the hooks are clamped with the base; or (b)

The protruding block is clamped on the isolation part.

Optionally, the isolation part is provided with a limit groove and a clamping groove communicated with the limit groove, and the protruding block is inserted into the limit groove or clamped into the clamping groove.

Optionally, the interphase separator includes first interphase separator and second interphase separator, same the isolation portion is connected first interphase separator with the second interphase separator arranges along the second direction and sets up, just first interphase separator includes first fixed part and first baffle portion, the second interphase separator includes second fixed part and second baffle portion, first fixed part with the dislocation direction of first baffle portion with the dislocation direction of second fixed part with second baffle portion is opposite.

Optionally, at least one reinforcing rib is disposed between the fixing portion and the partition plate portion.

Optionally, the fixing portion and the partition plate portion are both plate-shaped, and the fixing portion and the partition plate portion are integrally connected in an L-shape.

Optionally, the fixing device further comprises a cross beam, wherein two cross beams are arranged on two sides of the base along the second direction respectively, a plurality of fixing holes are formed in the cross beam along the first direction at intervals, fixing protrusions corresponding to the fixing holes one to one are arranged on the base, and the fixing protrusions are inserted into the fixing holes.

The utility model aims to provide a circuit breaker which comprises side plates and the partition plate assembly, wherein two side plates are arranged at intervals along a first direction, and the partition plate assembly is fixed between the two side plates.

The beneficial effects are that:

according to the partition board assembly provided by the utility model, the partition board parts and the fixing parts of the inter-phase partition boards are arranged in a staggered manner along the first direction, so that the yielding is effectively formed, the partition board parts are led to avoid the radiating fins which are closer to one of the fixing parts in the wiring rows at the two sides of the partition board parts, and the assembly is convenient.

According to the circuit breaker provided by the utility model, interphase short circuit is effectively prevented through the design of the partition plate assembly.

Drawings

Fig. 1 is a schematic view of a part of a structure of a drawer-type circuit breaker according to the prior art;

fig. 2 is another view schematically showing a part of the structure of a drawer-type circuit breaker according to the prior art;

fig. 3 is a schematic view of a view angle structure of a circuit breaker according to the present utility model;

fig. 4 is a schematic view of another view angle structure of the circuit breaker according to the present utility model;

FIG. 5 is a schematic view of a phase separator provided by the present utility model;

fig. 6 is an exploded view of a part of the structure of the circuit breaker provided by the present utility model;

fig. 7 is a partial sectional view of a part of the structure of the circuit breaker provided by the present utility model;

FIG. 8 is an enlarged view of the structure of FIG. 7A provided by the present utility model;

FIG. 9 is a schematic view of a base provided by the present utility model;

FIG. 10 is an enlarged view of the structure at B in FIG. 9 provided by the present utility model;

fig. 11 is a cross-sectional view of the structure at B in fig. 9 provided by the present utility model.

In the figure:

10. a wiring row; 20. a heat sink; 30. a phase separator;

110. a side plate; 120. a connecting plate; 130. a first screw;

200. a base; 210. a wire row part; 220. an isolation part; 221. a guide slot; 222. a limit groove; 223. a clamping groove; 2231. a barrier strip; 230. a fixing protrusion;

300. a phase separator; 310. a fixing part; 320. a partition plate portion; 321. a guide rib; 322. a bump; 323. a hook; 330. reinforcing ribs;

300a, a first interphase separator; 310a, a first fixing part; 320a, a first separator portion; 300b, a second phase spacer; 310b, a second fixing part; 320b, a second separator portion;

400. a wiring row; 410. a connection part; 420. a wiring section;

500. a heat sink;

600. a cross beam; 610. a through groove; 620. a fixing hole;

700. a positioning plate;

800. and a second screw.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Referring to fig. 3 to 4, the present embodiment provides a circuit breaker including a side plate 110 and a partition plate assembly. Wherein, the side plates 110 are arranged at intervals along the first direction, and the baffle assembly is fixed between the two side plates 110.

Specifically, the baffle assembly includes a base 200 and a baffle 300. The phase separator 300 includes a fixing portion 310 and a separator portion 320 connected to the fixing portion 310, the fixing portion 310 is detachably connected to the base 200, and the separator portion 320 and the fixing portion 310 are arranged in a staggered manner along the first direction. In this embodiment, the a direction in fig. 3 is the first direction.

Further, the circuit breaker further includes a wiring harness 400, and the wiring harness 400 is fixed to the base 200.

Further, the heat dissipation fins 500 are disposed on two sides of the wiring board 400 along the first direction, and the design of the partition board assembly effectively prevents interphase short circuit and is convenient to assemble.

In this embodiment, the partition plate portion 320 and the fixing portion 310 of the interphase partition plate 300 are arranged in a staggered manner along the first direction, so that a yielding is effectively formed, and the partition plate portion 320 is avoided from the heat sink 500 of one of the terminal rows 400 closer to the fixing portion 310, which is convenient for assembly.

In one possible embodiment, as shown in fig. 3 and 4, the base 200 includes a plurality of wire rows 210 and a plurality of spacers 220, the plurality of wire rows 210 are spaced apart along the first direction, and the spacers 220 are disposed between adjacent wire rows 210, so that the structure is compact. Specifically, the line row portion 210 is fixedly provided with the line row 400, the fixing portion 310 is detachably connected with the isolation portion 220, so that the interphase separator 300 and the line row 400 are convenient to disassemble and assemble, and an interphase short circuit caused by an arc generated by the line row 400 is effectively prevented.

In one possible embodiment, as shown in fig. 3 and 4, the wire bar 400 has an L-shape, and includes a connection part 410 fixedly connected to the wire bar part 210 and a wire connection part 420 for wire connection. Further, two wire rows 400 are disposed on each wire row portion 210 at intervals along the second direction, and the wire portions 420 of the wire rows 400 are staggered along the first direction. The direction b in fig. 3 is the second direction.

Further, to facilitate the installation of the interphase separator 300 and avoid the assembly interference, the interphase separator 300 specifically includes a first interphase separator 300a and a second interphase separator 300b, the first interphase separator 300a and the second interphase separator 300b connected by the same separator 220 are arranged along the second direction, the first interphase separator 300a includes a first fixing portion 310a and a first separator portion 320a, the second interphase separator 300b includes a second fixing portion 310b and a second separator portion 320b, and the dislocation direction of the first fixing portion 310a and the first separator portion 320a is opposite to the dislocation direction of the second fixing portion 310b and the second separator portion 320 b. The first phase separator 300a and the second phase separator 300b may have the same structure, and it is understood that the phase separators 300 mounted on the same separator 220 are opposite in direction, so as to implement the offset arrangement of the separator portions 320 of the two phase separators 300 along the first direction.

In one possible embodiment, as shown in fig. 3, to prevent the interphase short circuit, the interphase separating plate 300 is provided protruding from the base 200 in the second direction, and the interphase separating plate 300 is provided protruding from the wire connecting portion 420 in the third direction. The direction c in fig. 3 is a third direction.

In one possible embodiment, as shown in fig. 5, at least one reinforcing rib 330 is disposed between the fixing portion 310 and the partition portion 320, and the structural strength of the partition 300 can be reinforced by the reinforcing rib 330, and injection molding of the partition 300 is facilitated.

In one possible embodiment, as shown in fig. 5, the fixing portion 310 and the partition portion 320 are both plate-shaped, and the fixing portion 310 and the partition portion 320 are integrally connected to form an L shape, which is beneficial to injection molding of the interphase partition 300, and can more effectively form a abdication so as to avoid the wiring row 400 and other components on the wiring row 400.

In this embodiment, referring to fig. 3, 4 and 6, the spacer assembly further includes a cross beam 600, and the cross beam 600 is provided with two sides of the base 200 along the second direction. In the present embodiment, the base 200 is positionally mounted with respect to the side plate 110 by the cross member 600.

Specifically, a connecting plate 120 is further disposed between the two side plates 110, and the side plates 110 may be fixedly connected to the connecting plate 120 through a first screw member 130.

In a possible embodiment, as shown in fig. 6, a through groove 610 is formed on one side of the beam 600 facing away from the base 200 along the second direction, the through groove 610 penetrates through the beam 600 along the first direction, the partition board assembly further includes positioning plates 700, positioning plates 700 are disposed in two ends of the through groove 610 along the first direction, and peripheral side surfaces of the two positioning plates 700 are attached to inner surfaces of the through groove 610, so that the beam 600 and the base 200 are fixed by the positioning plates 700. Specifically, both ends of the cross beam 600 are abutted against the side plates 110, so as to realize positioning and assembling of the cross beam 600 and the base 200 along the first direction relative to the side plates 110. Specifically, the positioning plates 700 are fixed on the side plates 110, and each beam 600 corresponds to two positioning plates 700, and the beams 600 are clamped by the four positioning plates 700, so as to realize positioning assembly of the beams 600 and the base 200 along the second direction relative to the side plates 110. The positioning plate 700 may be fixed to the side plate 110 by the second screw 800. Illustratively, the cross-sectional shape of the cross-beam 600 along the first direction may be U-shaped.

In a possible embodiment, as shown in fig. 6, a plurality of fixing holes 620 are formed on the beam 600 and are spaced apart along the first direction, the base 200 is provided with fixing protrusions 230 corresponding to the fixing holes 620 one by one, and the fixing protrusions 230 are inserted into the fixing holes 620, so as to realize positioning and assembling between the base 200 and the beam 600.

In this embodiment, referring to fig. 5 and fig. 7 to fig. 11, a guiding rib 321 is disposed on a side of the fixing portion 310 facing away from the partition portion 320, a guiding slot 221 is disposed on the partition portion 220, the guiding rib 321 and the guiding slot 221 are both disposed along the second direction, and the guiding rib 321 is inserted into the guiding slot 221 to realize positioning of the interphase partition 300 along the first direction relative to the base 200, so as to facilitate assembly. In this embodiment, the guide rib 321 and the guide slot 221 are both extended along the second direction, so that the guide rib 321 and the inner surface of the guide slot 221 have a larger contact area, and the interphase separating plate 300 is stably connected with the base 200.

Further, one side of the fixing portion 310, which is opposite to the partition portion 320, is provided with a bump 322 and a hook 323, the bump 322 and the hook 323 are respectively located at two sides of the fixing portion 310 along the second direction, so that injection molding is facilitated, and strength of the bump 322 and the hook 323 is effectively ensured.

Specifically, the bump 322 is disposed on a side of the guide rib 321 facing away from the fixing portion 310.

In a possible embodiment, as shown in fig. 7 and 8, the bump 322 is inserted into the isolation portion 220, and the hook 323 is clamped with the base 200, so as to position the interphase separator 300 along the second direction relative to the base 200, and cooperate with the positioning action of the guiding rib 321 and the guiding slot 221, so as to position and install the interphase separator 300 relative to the base 200, and the mounting is convenient. Specifically, because the cross-beam 600 is fixed relative to the base 200, the hooks 323 can be snapped into a snap-fit relationship with the base 200 by snapping into place with the cross-beam 600. Wherein, the clamping connection of the hook 323 and the cross beam 600 means that the hook 323 is hung on the U-shaped side wall of the cross beam 600. Illustratively, the circuit breaker is generally vertically disposed, and the second direction is the vertical direction, so that the phase separator 300 is firmly connected to the base 200, and when installed, the protrusion 322 is located below the hook 323, and the hook 323 is located above the protrusion 322.

In one possible embodiment, as shown in fig. 7 and 8, the bump 322 is snapped onto the spacer 220 to achieve positioning of the phase separator 300 relative to the base 200 along the second direction. Illustratively, the circuit breaker is generally vertically disposed, and the second direction is the vertical direction, so that the interphase separating plate 300 is firmly connected with the base 200, and the protruding block 322 is located above the hooking hook 323 when installed. Under the action of gravity, the lug 322 is clamped with the isolation part 220, and the guide rib 321 and the guide slot 221 are matched, so that the stability of the connection between the interphase separator 300 and the base 200 can be effectively ensured.

As shown in fig. 7 and 8, taking the first interphase separator 300a and the second interphase separator 300b as an example, the first interphase separator 300a is located above, the second interphase separator 300b is located below, the first interphase separator 300a is inserted on the isolation portion 220 through the bump 322, the connection with the base 200 is realized by the way that the hook 323 is clamped with the cross beam 600, and the connection with the base 200 is realized by the way that the second interphase separator 300b is clamped on the isolation portion 220 through the bump 322, so that the assembly is convenient and the connection is stable.

In one possible embodiment, as shown in fig. 7 to 11, the isolation portion 220 is provided with a limiting groove 222 and a clamping groove 223 that is disposed in communication with the limiting groove 222, and the protruding block 322 is inserted into the limiting groove 222 or clamped into the clamping groove 223. Taking the example that the phase separator 300 includes the first phase separator 300a and the second phase separator 300b, the limiting groove 222 and the clamping groove 223 are located in the middle area of the isolation portion 220 along the second direction, the limiting groove 222 is located above the clamping groove 223, the protruding block 322 of the first phase separator 300a is inserted into the limiting groove 222, and the protruding block 322 of the second phase separator 300b is clamped into the clamping groove 223.

Specifically, two opposite barrier strips 2231 are disposed at the end of the clamping groove 223, and the barrier strips 2231 abut against the protruding blocks 322 to realize the clamping connection between the protruding blocks 322 and the clamping groove 223.

Illustratively, the steps of installing the first and second phase separator plates 300a, 300b are:

first, the second phase partition plate 300b is installed. Specifically, the guide rib 321 of the second phase partition 300b is aligned with the guide slot 221, and the protrusion 322 of the second phase partition 300b is inserted into the limit slot 222, so that the second phase partition 300b, i.e. the guide rib 321 of the second phase partition 300b slides in the guide slot 221, and the protrusion 322 slides into the clamping slot 223.

Then, the first phase separator 300a is installed. Specifically, the guide rib 321 of the first inter-phase separator 300a is aligned with the guide slot 221, and the protrusion 322 of the first inter-phase separator 300a is inserted into the limit slot 222, and the side of the first inter-phase separator 300a provided with the hook 323 is pressed, so that the hook 323 is clamped with the cross beam 600.

The partition board assembly provided in this embodiment is not only suitable for a drawer-type circuit breaker, but also suitable for circuit breakers of other structural forms or other low-voltage electrical apparatuses, and is not particularly limited herein.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A bulkhead assembly for a circuit breaker, the bulkhead assembly comprising:

a base (200);

the interphase separator (300) comprises a fixing portion (310) and a separator portion (320) connected with the fixing portion (310), wherein the fixing portion (310) is detachably connected with the base (200), and the separator portion (320) and the fixing portion (310) are arranged in a staggered mode along a first direction.

2. The separator assembly according to claim 1, wherein the base (200) includes a plurality of line segments (210) and a plurality of isolation portions (220), the line segments (210) are disposed at intervals along the first direction, the isolation portions (220) are disposed between adjacent line segments (210), the line segments (210) are used for fixing a line segment (400) of the circuit breaker, and the fixing portion (310) is detachably connected with the isolation portions (220).

3. The partition board assembly according to claim 2, wherein a guide rib (321) is disposed on a side, facing away from the partition board portion (320), of the fixing portion (310), a guide slot (221) is disposed on the isolation portion (220), the guide rib (321) and the guide slot (221) are both disposed in a second direction in an extending manner, and the guide rib (321) is inserted into the guide slot (221).

4. The baffle plate assembly according to claim 2, characterized in that a side of the fixing portion (310) facing away from the baffle plate portion (320) is provided with a projection (322) and a hook (323), the projection (322) and the hook (323) being located on both sides of the fixing portion (310) in the second direction, respectively; wherein,

the convex blocks (322) are inserted on the isolation parts (220), and the hooks (323) are clamped with the base (200); or (b)

The protruding block (322) is clamped to the isolation part (220).

5. The partition board assembly according to claim 4, wherein the partition board assembly (220) is provided with a limit groove (222) and a clamping groove (223) communicated with the limit groove (222), and the protruding block (322) is inserted into the limit groove (222) or clamped into the clamping groove (223).

6. The separator assembly according to claim 2, wherein the separator plate (300) comprises a first separator plate (300 a) and a second separator plate (300 b), the first separator plate (300 a) and the second separator plate (300 b) connected with the separator portion (220) are arranged along a second direction, the first separator plate (300 a) comprises a first fixing portion (310 a) and a first separator plate portion (320 a), the second separator plate (300 b) comprises a second fixing portion (310 b) and a second separator plate portion (320 b), and the dislocation direction of the first fixing portion (310 a) and the first separator plate portion (320 a) is opposite to the dislocation direction of the second fixing portion (310 b) and the second separator plate portion (320 b).

7. The baffle assembly according to claim 1, characterized in that at least one reinforcement rib (330) is provided between the fixing portion (310) and the baffle portion (320).

8. The separator assembly according to claim 1, wherein the fixing portion (310) and the separator portion (320) are both plate-shaped, and the fixing portion (310) and the separator portion (320) are integrally connected in an L-shape.

9. The partition board assembly according to any one of claims 1 to 8, further comprising a cross beam (600), wherein the cross beam (600) is provided with two fixing holes (620) which are respectively arranged on two sides of the base (200) along the second direction, the cross beam (600) is provided with a plurality of fixing protrusions (230) which are arranged at intervals along the first direction, the base (200) is provided with fixing protrusions (230) which are in one-to-one correspondence with the fixing holes (620), and the fixing protrusions (230) are inserted into the fixing holes (620).

10. A circuit breaker, comprising:

side plates (110) provided with two side plates at intervals along a first direction;

a screen assembly according to any one of claims 1 to 9, secured between two of said side panels (110).