CN213425524U - Distribution box - Google Patents

Abstract

The utility model relates to a distribution technical field especially relates to a block terminal. The utility model provides a block terminal includes casing, a plurality of fuse box subassembly and fuse box support. Wherein, a plurality of fuse box subassemblies are located the inside of casing, and fuse box support sets up in the casing, and a plurality of fuse box subassemblies set up side by side and fix on fuse box support. The fuse box support is adjustable in length, compatibility and arrangement of fuse box assemblies of different brands, specifications and quantities can be met, the situation that the fuse box support is replaced again to match a plurality of fuse box assemblies is avoided, operation is convenient and fast, and cost is reduced.

Description

Distribution box

Technical Field

The utility model relates to a distribution technical field especially relates to a block terminal.

Background

In order to effectively and safely avoid that electronic components in the distribution box are burnt out due to overcurrent, overload, short circuit and the like, a certain number of fuse box assemblies are often arranged in the distribution box. Because the fuse box subassembly that circulates in the market is volume and appearance kind are various, and the fuse box subassembly that especially multicircuit current need dispose certain quantity uses side by side just can satisfy the functional requirement, will appear the fuse box subassembly of different brands, specification and quantity and use side by side like this. However, the fuse box bracket for fixing the fuse box assembly has a fixed length, which is difficult to satisfy the compatibility and arrangement of fuse box assemblies of different brands, specifications and quantities, and the fuse box bracket with a proper length is replaced again, so that the operation is inconvenient, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a distribution box, fuse box support length in the distribution box can adjust, can satisfy the fuse box subassembly of different brands, specification and quantity compatible and arrange, simple operation and reduce cost.

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

an electrical box comprising a housing, the electrical box further comprising:

a plurality of fuse block assemblies located inside the housing; and

the fuse box support sets up in the casing, it is a plurality of the fuse box subassembly sets up side by side and fixes on the fuse box support, the length of fuse box support is adjustable.

Preferably, the fuse box bracket comprises a first bracket, a second bracket and a fixing piece, the first bracket is spliced with the second bracket and can relatively slide along the splicing direction, and the fixing piece fixes the second bracket and the first bracket;

the first support with the second support is Z shape, first support is including the first crossbeam, first curb plate and the first fixed plate that connect gradually, the second support is including the second crossbeam, second curb plate and the second fixed plate that connect gradually, first crossbeam with the second crossbeam is pegged graft mutually and can be followed grafting direction relative slip, first fixed plate with the second fixed plate homoenergetic with the casing is fixed.

Preferably, the second beam comprises a U-shaped plate and a bottom plate, the bottom plate extends from the end of the side wall of the U-shaped plate to the inside of the U-shaped plate along the horizontal direction, and the U-shaped plate and the bottom plate together form a guide clamping groove; the cross section of the first cross beam is U-shaped, and the first cross beam is inserted into the guide clamping groove and can slide along the guide clamping groove.

According to the preferable scheme, one of the side wall of the U-shaped plate and the side wall of the first cross beam is provided with a long waist hole along the inserting direction, the other one of the side wall of the U-shaped plate and the side wall of the first cross beam is provided with a round hole, the long waist hole and the round hole are arranged oppositely, and the fixing piece sequentially penetrates through the long waist hole and the round hole to fix the second cross beam and the first cross beam.

According to the preferable scheme, two ends of the fuse box support respectively extend upwards to form limiting plates, and the two limiting plates are arranged oppositely and clamp the plurality of fuse box assemblies together.

Preferably, the distribution box further comprises:

the fuse box guide rails are all arranged on the fuse box guide rails, and the fuse box guide rails are placed on the fuse box supports; and

and the locking piece is used for fixing the fuse box guide rail and the fuse box bracket.

As the preferred scheme, first crossbeam with the elongated hole that extends along the grafting direction is all seted up to the second crossbeam, a plurality of fixed orificess have been seted up along the grafting direction to the fuse box guide rail, the retaining member passes in proper order the fixed orifices with the elongated hole will the fuse box guide rail is fixed on the fuse box support.

Preferably, the distribution box further comprises:

the buckle assembly comprises a first clamping arm and a second clamping arm;

the first clamping arm comprises a first connecting part and a first clamping part which are connected, the first connecting part is connected with the bottom surface of the fuse box assembly, and a first clamping interface is formed between the first clamping part and the bottom surface of the fuse box assembly;

the second clamping arm comprises a second connecting part and a second clamping part which are connected, the second connecting part is connected with the bottom surface of the fuse box assembly, and a second clamping interface is formed between the second clamping part and the bottom surface of the fuse box assembly;

the first clamping interface and the second clamping interface are oppositely arranged to form an inserting channel, one side wall of the fuse box guide rail is clamped in the first clamping interface, and the other side wall of the fuse box guide rail is clamped in the second clamping interface.

Preferably, the fuse block guide includes:

the section of the frame is Contraband, the frame comprises a first plate and a second plate, the second plate extends upwards from two sides of the first plate, and the first plate is fixed with the fuse box bracket; and

the clamping plate, the tip of second board extends outwards along the horizontal direction and is provided with clamping plate, one of them the clamping plate integrated circuit board connects in first joint mouth, another the clamping plate integrated circuit board connects in the second joint mouth, the bottom surface of fuse box subassembly with the top surface interval of fuse box support sets up.

Preferably, the second connection portion includes:

the second clamping part extends towards one end of the main body, a guide block is arranged on the bottom surface of the fuse box assembly, a guide groove is formed in the guide block, and the main body is inserted in the guide groove and can slide along the guide groove;

the jack catch, the through-hole has been seted up in the centre of main part, the lateral wall of through-hole inwards extends and is provided with the jack catch is provided with the card protruding on the bottom surface of institute fuse box subassembly, the jack catch with protruding looks joint of card.

The utility model has the advantages that:

the utility model provides a distribution box. The fuse box support with the adjustable length can meet the compatibility and arrangement of fuse box assemblies of different brands, specifications and quantities, is convenient to operate, and reduces the cost.

Drawings

Fig. 1 is a schematic structural view of a distribution box in an embodiment of the present invention;

FIG. 2 is a schematic structural view of a fuse block holder according to an embodiment of the present invention;

FIG. 3 is an enlarged view at A in FIG. 2;

fig. 4 is a schematic structural view of the distribution box of the embodiment of the present invention, in which the housing is removed;

FIG. 5 is a schematic structural view of a fuse block assembly and fuse block guide rail in an embodiment of the present invention;

fig. 6 is a schematic structural view of the buckle in the embodiment of the present invention;

FIG. 7 is a cross-sectional view of a fuse block assembly in an embodiment of the invention;

fig. 8 is a schematic structural diagram of a fuse block assembly according to an embodiment of the present invention.

In the figure:

1. a housing;

2. a fuse block assembly; 21. a guide block; 211. a guide groove; 22. clamping convex;

3. a fuse box holder; 31. a first bracket; 311. a first cross member; 3111. a circular hole; 312. a first side plate; 313. a first fixing plate; 32. a second bracket; 321. a second cross member; 3211. a U-shaped plate; 32111. a long waist hole; 3212. a base plate; 32121. a guide clamping groove; 322. a second side plate; 323. a second fixing plate; 33. a fixing member; 34. a limiting plate; 35. a long hole;

4. a fuse box guide rail; 41. a fixing hole; 42. a frame; 421. a first plate; 422. a second plate; 43. a clamping and connecting plate;

5. a locking member;

6. a buckle assembly; 61. a first clamping arm; 611. a first connection portion; 612. a first clamping part; 62. a second clamping arm; 621. a second connecting portion; 6211. a main body; 6212. a claw; 62121. a cantilever; 62122. a protrusion; 622. a second clamping part.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; 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 invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1, the distribution box includes a housing 1, electrical components, a plurality of fuse box assemblies 2, and a fuse box support 3, and the distribution box is mainly used for cutting off a circuit or giving an alarm by protecting an electrical appliance when a circuit fails or abnormally operates, and effectively controlling each power line to achieve the purpose of safe power utilization. Wherein, electrical components, a plurality of fuse box subassembly 2 and fuse box support 3 set up in casing 1, and casing 1 has the effect that the protection was supported, and fuse box subassembly 2 plays short circuit or overload protection's effect, and fuse box support 3 is fixed mutually with casing 1, and a plurality of fuse box subassembly 2 set up side by side and fix on fuse box support 3, and fuse box support 3 plays fixed mounting's effect to a plurality of fuse box subassembly 2.

As shown in fig. 1, the length of the fuse box support 3 is adjustable, the fuse box support 3 comprises a first support 31, a second support 32 and a fixing part 33, the first support 31 is inserted into the second support 32 and can slide relatively along the insertion direction, the fixing part 33 fixes the second support 32 and the first support 31, the length of the fuse box support 3 is changed by the relative sliding of the first support 31 and the second support 32, different brands and the compatibility and arrangement of the fuse box assemblies 2 with different specifications and quantities can be met, the situation that the fuse box support 3 is replaced again to match a plurality of fuse box assemblies 2 is avoided, the operation is convenient and fast, and the cost is reduced. Preferably, as shown in fig. 2, the two ends of the fuse box support 3 respectively extend upwards to be provided with the limiting plates 34, and the two limiting plates 34 are just opposite to the arrangement and commonly clamp the plurality of fuse box assemblies 2, so that the separation between the plurality of fuse box assemblies 2 can be avoided, and the plurality of fuse box assemblies 2 are more firmly fixed on the fuse box support 3.

To facilitate the description of the specific structures of the first bracket 31 and the second bracket 32, as shown in fig. 2, the first bracket 31 and the second bracket 32 are both Z-shaped, the first bracket 31 includes a first cross beam 311, a first side plate 312 and a first fixing plate 313 which are sequentially connected, the second bracket 32 includes a second cross beam 321, a second side plate 322 and a second fixing plate 323 which are sequentially connected, the first cross beam 311 and the second cross beam 321 are inserted and can relatively slide along the insertion direction, and the first fixing plate 313 and the second fixing plate 323 can both be fixed to the housing 1. By providing the first fixing plate 313 and the second fixing plate 323, the mounting areas of the first bracket 31 and the second bracket 32 with the housing 1 can be increased, and the mounting stability of the first bracket 31 and the second bracket 32 can be ensured.

Preferably, as shown in fig. 3, the second beam 321 includes a U-shaped plate 3211 and a bottom plate 3212, the bottom plate 3212 extends from an end of a side wall of the U-shaped plate 3211 toward an inside of the U-shaped plate 3211 along a horizontal direction, the U-shaped plate 3211 and the bottom plate 3212 together form a guide slot 32121, a cross section of the first beam 311 is U-shaped, the first beam 311 is inserted into the guide slot 32121 and can slide along the guide slot 32121, the guide slot 32121 guides the first beam 311 in the insertion process, so that the first beam 311 and the second beam 321 are effectively prevented from being dislocated in the insertion process, and operability in the insertion process is improved.

Specifically, as shown in fig. 3, when the first cross beam 311 is inserted into the second cross beam 321, the top plate of the first cross beam 311 abuts against the top plate of the U-shaped plate 3211, two side plates of the first cross beam 311 abut against the side walls of the U-shaped plate 3211, and the two side plates of the first cross beam 311 are supported by the bottom plate 3212, so that the stability of the insertion fit between the first cross beam 311 and the second cross beam 321 can be ensured.

In order to realize the length adjustment of the fuse box bracket 3, as shown in fig. 3, a long waist hole 32111 is formed in the side wall of the U-shaped plate 3211 along the insertion direction, a circular hole 3111 is formed in the side wall of the first beam 311, the long waist hole 32111 and the circular hole 3111 are opposite to each other, and the fixing member 33 sequentially passes through the long waist hole 32111 and the circular hole 3111 to fix the second beam 321 and the first beam 311. According to the length of required fuse box support 3, slide round hole 3111 on the lateral wall of first crossbeam 311 along the long kidney hole 3211 on the lateral wall of U-shaped board 3211, after reaching suitable position, pass long kidney hole 32111 and round hole 3111 with mounting 33 in proper order and fix second crossbeam 321 and first crossbeam 311 mutually, and then increase first support 31 and the flexible scope of second support 32 for fuse box support 3 matches the compatibility and the arranging of the fuse box subassembly 2 of different brands, specification and quantity better.

In other embodiments, a long waist hole 32111 may be further formed in the side wall of the first cross beam 311 along the insertion direction, a circular hole 3111 is formed in the side wall of the U-shaped plate 3211, the long waist hole 32111 and the circular hole 3111 are arranged opposite to each other, and the fixing member 33 sequentially passes through the circular hole 3111 and the long waist hole 32111 to fix the second cross beam 321 and the first cross beam 311, so that the length of the fuse box support 3 may be adjustable.

Preferably, the maximum telescopic length of the fuse box support 3 is 2 times of the minimum telescopic length of the fuse box support 3, the fuse box components 2 of different brands, specifications and numbers can be matched and arranged in the largest range, the compatibility of the fuse box support 3 is further improved, and the adjustable range is wide.

Preferably, as shown in fig. 4, the distribution box further includes fuse box guide rails 4 and retaining members 5, a plurality of fuse box assemblies 2 are all installed on fuse box guide rails 4, fuse box guide rails 4 are placed on fuse box supports 3, fuse box guide rails 4 are fixed with fuse box supports 3 through retaining members 5, through setting up fuse box guide rails 4, a plurality of fuse box assemblies 2 can be avoided directly being fixed with fuse box supports 3, direct seting up the mounting hole on fuse box assemblies 2 can be avoided, the integrality of fuse box assemblies 2 can be guaranteed, and then the precision of fuse box assemblies 2 is guaranteed. In addition, install a plurality of fuse box subassembly 2 earlier and become pre-installation spare on fuse box guide rail 4, will install the pre-installation spare again on fuse box support 3, can improve the installation effectiveness and the installation accuracy of whole block terminal.

Preferably, as shown in fig. 4, the first beam 311 and the second beam 321 are both provided with an elongated hole 35 extending along the plugging direction, the fuse box guide rail 4 is provided with a plurality of fixing holes 41 along the plugging direction, after the telescopic length of the fuse box bracket 3 is fixed, the elongated hole 35 on the second beam 321 and the elongated hole 35 on the first beam 311 coincide vertically, and the plurality of locking members 5 sequentially pass through the plurality of fixing holes 41 and the elongated hole 35 coinciding vertically to fix the fuse box guide rail 4 on the fuse box bracket 3, so that the fuse box guide rail 4 and the fuse box bracket 3 can be fixed more firmly.

In order to better realize the installation and fixation of the plurality of fuse box assemblies 2 and the fuse box guide rails 4, as shown in fig. 5, the distribution box further comprises a buckle assembly 6, the buckle assembly 6 comprises a first clamping arm 61 and a second clamping arm 62, the first clamping arm 61 comprises a first connecting portion 611 and a first clamping portion 612 which are connected, the first connecting portion 611 is connected with the bottom surface of the fuse box assembly 2, the first clamping portion 612 forms a first clamping interface with the bottom surface of the fuse box assembly 2, the second clamping arm 62 comprises a second connecting portion 621 and a second clamping portion 622 which are connected, the second connecting portion 621 is connected with the bottom surface of the fuse box assembly 2, the second clamping portion 622 forms a second clamping interface with the bottom surface of the fuse box assembly 2, the first clamping interface and the second clamping interface are arranged oppositely, so that the first clamping interface and the second clamping interface form a splicing channel, the fuse box guide rails 4 are arranged in the splicing channel, a lateral wall joint of fuse box guide rail 4 is in first joint mouth, and another lateral wall joint of fuse box guide rail 4 is in the second joint mouth, can realize that fuse box guide rail 4 is fixed with the joint of fuse box subassembly 2. Two lateral walls of fuse box guide rail 4 slide in first joint mouth and second joint mouth along the direction of pegging graft, the dismantlement of the fuse box guide rail 4 of being convenient for, the change and the maintenance of the fuse box guide rail 4 of being convenient for, be convenient for with the first joint mouth of fuse box guide rail 4 roll-off and second joint mouth in order to pre-install retaining member 5 on fuse box guide rail 4 to realize fuse box guide rail 4 and fuse box support 3's fixed.

To ensure effective heat dissipation from the fuse block assembly 2, the fuse block rail 4 includes a frame 42 and a snap plate 43, as shown in fig. 5. Wherein, the cross-section of frame 42 is "Contraband" shape, frame 42 includes first board 421 and second board 422, the both sides of first board 421 all upwards extend and are provided with second board 422, first board 421 pass through retaining member 5 and fuse box support 3 fixed mutually, the tip of second board 422 outwards extends along the horizontal direction and is provided with joint board 43, one of them joint board 43 joint is in first joint mouth, another joint board 43 joint is in second joint mouth, the bottom surface of fuse box subassembly 2 and the top surface interval of fuse box support 3 set up, the clearance of fuse box subassembly 2 with first board 421 has been increased, the effective heat dissipation of fuse box subassembly 2 has been guaranteed. In addition, the locking member 5 has a structure that the screw and the nut are matched, and the screw head of the screw is accommodated in the space of the frame 42 in the embodiment, so that the screw head is prevented from abutting against the bottom surface of the fuse box assembly 2, and the fuse box assembly 2 is prevented from being damaged.

Preferably, as shown in fig. 6 to 8, the second connecting portion 621 includes a main body 6211 and a clamping jaw 6212, the main body 6211 has a second clamping portion 622 extending towards one end, a guide block 21 is disposed on the bottom surface of the fuse box assembly 2, a guide groove 211 is disposed on the guide block 21, the main body 6211 is inserted into the guide groove 211 and can slide along the guide groove 211, a through hole is disposed in the middle of the main body 6211, the clamping jaw 6212 is disposed on the side wall of the through hole extending inwards, a clamping protrusion 22 is disposed on the bottom surface of the fuse box assembly 2, and the clamping jaw 6212 is clamped with the clamping protrusion 22. Through setting up protruding 22 of card and sliding in guide way 211, be convenient for realize jack catch 6212 in the switching of joint position and dismantlement position, when in the joint position, can realize fuse box subassembly 2 and fuse box guide rail 4's fixed, when in the dismantlement position, can realize fuse box guide rail 4's quick installation and change.

Preferably, as shown in fig. 6 to 7, the claw 6212 includes a cantilever 62121 and a protrusion 62122, one end of the cantilever 62121 is connected to a sidewall of the through hole of the body 6211, the other end of the cantilever 62121 extends upward to form a protrusion 62122, and the protrusion 62122 is engaged with the engaging protrusion 22, so that stability of engagement between the claw 6212 and the engaging protrusion 22 is enhanced.

Preferably, as shown in fig. 6 to 8, the claw 6212 is elastically deformable, and the claw 6212 can be quickly switched between the engagement position and the disengagement position by a simple operation: when the disassembly position is realized, the claw 6212 can be separated from the clamping protrusion 22 by pulling the claw 6212, and the second connecting part 621 is dragged to slide out of the guide groove 211; when the installation position is realized, the second connecting part 621 is directly pushed to slide in the guide groove 211, the protrusion 62122 is downwards deviated under the extrusion action of the clamping protrusion 22, the second connecting part 621 is ensured to continuously slide along the guide groove 211, and after the protrusion 62122 slides over the part of the clamping protrusion 22, the protrusion 62122 is upwards bounced again to complete clamping. When being located the dismantlement position, second connecting portion 621 roll-off guide way 211 can spill fuse box guide rail 4, and then is convenient for install retaining member 5 on fuse box guide rail 4, realizes fuse box guide rail 4 and fuse box support 3's fixed. Specifically, the claw 6212 may be made of a rubber material so as to achieve its own elastic deformation.

In other embodiments, the claw 6212 includes a resilient element and a protrusion 62122, one end of the resilient element is fixed on the sidewall of the through hole of the body 6211, and the other end of the resilient element is fixed with a protrusion 62122, so that the protrusion 62122 can be shifted up and down by elastic deformation of the resilient element, and thus the claw 6212 can be quickly switched between the clamping position and the detaching position.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A distribution box comprising a casing (1), characterized in that it further comprises:

a plurality of fuse block assemblies (2), the plurality of fuse block assemblies (2) being located inside the housing (1); and

fuse box support (3), set up in casing (1), it is a plurality of fuse box subassembly (2) set up side by side and fix on fuse box support (3), the adjustable length of fuse box support (3).

2. The distribution box according to claim 1, wherein the fuse block holder (3) comprises a first holder (31), a second holder (32), and a fixing member (33), the first holder (31) is inserted into the second holder (32) and can slide relatively along the insertion direction, and the fixing member (33) fixes the second holder (32) and the first holder (31);

first support (31) with second support (32) are the Z shape, first support (31) are including first crossbeam (311), first curb plate (312) and first fixed plate (313) that connect gradually, second support (32) are including second crossbeam (321), second curb plate (322) and second fixed plate (323) that connect gradually, first crossbeam (311) with second crossbeam (321) are pegged graft mutually and can be followed the direction of pegging graft and slided relatively, first fixed plate (313) with second fixed plate (323) homoenergetic with casing (1) is fixed.

3. The distribution box according to claim 2, wherein the second beam (321) comprises a U-shaped plate (3211) and a bottom plate (3212), the bottom plate (3212) extends from an end of a side wall of the U-shaped plate (3211) in a horizontal direction toward an inside of the U-shaped plate (3211), and the U-shaped plate (3211) and the bottom plate (3212) together form a guide slot (32121); the cross section of the first cross beam (311) is U-shaped, and the first cross beam (311) is inserted into the guide clamping groove (32121) and can slide along the guide clamping groove (32121).

4. The distribution box of claim 3, wherein one of the side walls of the U-shaped plate (3211) and the first beam (311) has a long waist hole (32111) along the insertion direction, the other has a circular hole (3111), the long waist hole (32111) and the circular hole (3111) are disposed opposite to each other, and the fixing member (33) sequentially passes through the long waist hole (32111) and the circular hole (3111) to fix the second beam (321) and the first beam (311).

5. The distribution box according to claim 1, wherein two ends of the fuse box bracket (3) are respectively provided with a limiting plate (34) in an upward extending manner, and the two limiting plates (34) are oppositely arranged and commonly clamp the plurality of fuse box assemblies (2).

6. The electrical box of claim 2, further comprising:

the fuse box guide rails (4), the fuse box assemblies (2) are all arranged on the fuse box guide rails (4), and the fuse box guide rails (4) are placed on the fuse box supports (3); and

and the locking piece (5) is used for fixing the fuse box guide rail (4) with the fuse box bracket (3).

7. The distribution box according to claim 6, wherein the first beam (311) and the second beam (321) are both provided with an elongated hole (35) extending along the plugging direction, the fuse box guide rail (4) is provided with a plurality of fixing holes (41) along the plugging direction, and the locking member (5) sequentially penetrates through the fixing holes (41) and the elongated hole (35) to fix the fuse box guide rail (4) on the fuse box support (3).

8. The electrical box of claim 6, further comprising:

a snap assembly (6) comprising a first snap arm (61) and a second snap arm (62);

the first clamping arm (61) comprises a first connecting part (611) and a first clamping part (612) which are connected, the first connecting part (611) is connected with the bottom surface of the fuse box assembly (2), and the first clamping part (612) and the bottom surface of the fuse box assembly (2) form a first clamping interface;

the second clamping arm (62) comprises a second connecting part (621) and a second clamping part (622) which are connected, the second connecting part (621) is connected with the bottom surface of the fuse box assembly (2), and the second clamping part (622) and the bottom surface of the fuse box assembly (2) form a second clamping interface;

the first clamping interface and the second clamping interface are oppositely arranged to form an inserting channel, one side wall of the fuse box guide rail (4) is clamped in the first clamping interface, and the other side wall of the fuse box guide rail (4) is clamped in the second clamping interface.

9. The electrical box of claim 8, wherein the fuse block rail (4) comprises:

the cross section of the frame (42) is Contraband', the frame (42) comprises a first plate (421) and a second plate (422), the second plate (422) extends upwards from two sides of the first plate (421), and the first plate (421) is fixed with the fuse box bracket (3); and

the clamping plate (43), the tip of second board (422) extends outwards along the horizontal direction and is provided with clamping plate (43), one of them clamping plate (43) joint is in the first joint mouth, another clamping plate (43) joint is in the second joint mouth, the bottom surface of fuse box subassembly (2) with the top surface interval of fuse box support (3) sets up.

10. The electrical box according to claim 9, wherein the second connecting portion (621) comprises:

the main body (6211), the second clamping portion (622) extends towards one end of the main body (6211), a guide block (21) is arranged on the bottom surface of the fuse box assembly (2), a guide groove (211) is formed in the guide block (21), and the main body (6211) is inserted in the guide groove (211) and can slide along the guide groove (211);

jack catch (6212), the through-hole has been seted up in the centre of main part (6211), the lateral wall of through-hole inwards extends and is provided with jack catch (6212), be provided with on the bottom surface of fuse box subassembly (2) card protruding (22), jack catch (6212) with protruding (22) looks joint of card.

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