CN214673320U - Bus bar device - Google Patents

Abstract

The utility model provides a busbar device, preferably, including busbar body and sheath, the busbar body is the strip part that extends along its length direction, and the sheath has upper portion, lower part and the lateral part that surrounds a part of busbar main part respectively from top, below and side, is formed with the protruding of direction salient to the direction that is close to the busbar main part on the lateral part, is formed with the concave part with protruding block on the busbar body.

Description

Bus bar device

Technical Field

The utility model relates to an electrical accessories field, concretely relates to busbar device.

Background

The circuit breaker is a switching device capable of closing, bearing and opening/closing current under normal circuit conditions, and can cut off a circuit when faults such as overload, short circuit or undervoltage occur, so that the circuit breaker is widely applied to the electrical field. Compared with the traditional circuit breaker, the compact circuit breaker greatly saves space, and along with the fact that the compact circuit breaker is more and more common in recent years, people gradually accept and recognize the miniaturization advantage of the distribution box brought by the compact circuit breaker. The busbar is used for being connected with the circuit breaker to can reduce the use of electric wire, avoid the condition that when being connected with the circuit breaker the electric wire is many and mixed and disorderly.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved by the utility model

The compact circuit breaker reduces the volume, and the width of the terminal wiring port of the compact circuit breaker is smaller than that of the terminal wiring port of the traditional circuit breaker, so when the electric wire is inserted into the terminal wiring port of the compact circuit breaker, the electric wire with the crimping terminal is larger in width and cannot be inserted into the terminal wiring port of the compact circuit breaker, inconvenience is brought to a user, and a bus bar device used with the compact circuit breaker is difficult to be properly connected with the electric wire.

Solution for solving the above technical problem

In order to solve the above problem, the present invention provides a bus bar device, including a bus bar body and a sheath, the bus bar body is a strip-shaped member extending along a longitudinal direction thereof, the sheath has an upper portion, a lower portion, and a side portion which respectively surround a part of the bus bar main body from above, below, and side, a projection projecting in a direction close to the bus bar main body is formed on the side portion, and a concave portion engaged with the projection is formed on the bus bar body.

According to the technical scheme, the protrusion protruding towards the direction close to the bus bar main body is formed on the side portion of the sheath, the concave portion clamped with the protrusion is formed on the bus bar main body, the protrusion is matched with the concave portion formed on the bus bar main body, and the clamping structure is formed after the protrusion and the concave portion are matched with each other to prevent the bus bar main body from moving everywhere in the sheath, so that the fixing position is achieved, and the bus bar main body can be better butted with the terminal portion of the matched conductive device.

Preferably, the lower portion is provided with a plurality of arc portions curved in a direction away from the bus bar main body, and the side portion is provided with a plurality of convex portions continuous with the respective arc portions and protruding from the side portion in a direction away from the bus bar main body.

According to the technical scheme, the arc part is arranged at the lower part, the protruding part is formed at the side part, and the arc part is used for providing allowance for installing the terminal part of the conductive device and can provide support for the terminal part. In addition, the arc part and the bulge are clamped with the conducting device together, so that the bus bar device and the conducting device are tightly connected, and the conducting effect is better realized.

Preferably, the protrusion and the projection are offset in the longitudinal direction.

According to the technical scheme, the protrusions and the protruding parts are arranged in a staggered mode in the length direction, and the terminal parts of the conductive devices and the protrusions of the bus bar devices are prevented from interfering with each other when the conductive devices are connected and matched with the bus bar devices.

Preferably, the busbar body includes a base plate, a portion of which is disposed in a space defined by the upper portion, the lower portion, and the side portion, and a plurality of busbar teeth extending from the base plate.

According to the technical scheme, the protective sleeve covers and wraps the substrate from the upper part, the lower part and the side, so that the substrate is protected, the influence of the outside on the substrate is reduced, and the conductivity of the substrate is improved. In addition, the sheath has insulation, so that the safety of a user in the installation and use process can be ensured.

Preferably, the substrate further comprises a second side portion connected to an end of the substrate to limit the movement of the substrate in the longitudinal direction.

According to the technical scheme, the second side part can limit the movement of the substrate from the end part of the substrate, so that the position of the substrate in the sheath is fixed.

Preferably, the busbar body and the sheath are provided two each.

According to the technical scheme, the two busbar bodies and the sheath are used for being connected with the live wire and the zero line respectively, and the safety is improved.

Preferably, a notch portion connected to each circular arc portion is further provided on the lower portion.

According to the technical scheme, the notch part is used for accommodating the terminal part of the conductive terminal board, so that the terminal part can stretch into the bus bar device from the notch part, and the whole conductive performance is improved.

Drawings

Fig. 1 is a perspective view of the conductive device of the present invention.

Fig. 2 is a perspective view of the bus bar device of the present invention.

Fig. 3 is a combination view of the conductive device and the bus bar device according to the present invention.

Fig. 4 is a diagram of internal components of the conductive device of the present invention.

Fig. 5 is a perspective view of a bus bar body of the bus bar device of the present invention.

Fig. 6 is a perspective view of a sheath of the bus bar device of the present invention.

Fig. 7 is a schematic view of the internal structure of the housing of the conductive device of the present invention.

Fig. 8 is an exploded schematic view of fig. 4.

Description of the reference numerals

1 an electrically conductive device; 11 a housing; 111 a bottom part; 112 a cover member; 113 opening; 114 into the aperture; 115 an operation hole; 116 a position limiting part; 12 a terminal frame; 121 a threaded hole; 13 a conductive terminal plate; 131 terminal frame fixing portions; 1311 an engaging portion; 132 a connecting part; 133 terminal portion; 14 terminal screws; 2 a bus bar device; 21 a bus body; 211 a substrate; 2111 a recess; 212 bus bar teeth; 22 a sheath; 221 upper part; 222 lower part; 2221 an arc portion; 2222 a notch portion; side 223; 2231, a projection; 2232 a projection; 224 a second side portion; a height direction; b in the width direction; c length direction.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The bus bar device of the present invention needs to be used in conjunction with a conductive device, and first, the conductive device 1 is described, as shown in fig. 1 and 4, including the bottom part 111, the cover part 112, the terminal frame 12 and the conductive terminal board 13, the bottom part 111 and the cover part 112 are connected to each other to form the housing 11, the opening 113 is formed on the housing 11, the terminal frame 12 is disposed in the housing 11 at a position opposite to the opening 113, one end of the conductive terminal board 13 is disposed in the terminal frame 12, and the other end (see fig. 1) is extended out of the housing 11 and disposed outside the housing 11. The term "one end" as used herein generally refers to a part of the conductive terminal plate 13 provided in the terminal frame 12, i.e., a terminal frame fixing portion 131 described below, and the term "the other end" refers to a part of the conductive terminal plate 13 other than the above-described one end-related structure, i.e., a connecting portion 132 and a terminal portion 133 described below.

The conductive device 1 is used in cooperation with a bus bar device, and therefore, the bus bar device will be specifically described in the present embodiment. Specifically, as shown in fig. 2 and 6, the bus bar device 2 includes a bus bar body 21 and a sheath 22, the bus bar body 21 is a bar-shaped member extending in a longitudinal direction c thereof, the sheath 22 includes an upper portion 221, a lower portion 222, and a side portion 223 surrounding a part of the bus bar body from above, below, and on the side, respectively, a projection 2231 projecting in a direction approaching the bus bar body is formed on the side portion 223, and as shown in fig. 5, a recess 2111 engaging with the projection 2231 is formed on the bus bar body 21.

Preferably, the busbar body includes a base 211 and a plurality of bus teeth 212 extending from the base 211, a portion of the base 211 being disposed in a space defined by an upper portion 221, a lower portion 222, and a side portion 223.

The plurality of bus bars 212 can be simultaneously connected with the plurality of circuit breakers, and the substrate 211 is simultaneously conducted with the plurality of bus bars 212, thereby realizing a current parallel structure. The sheath 22 covers and wraps the substrate 211 from the upper side, the lower side and the lateral side, so that the substrate 211 is protected, the influence of the outside on the substrate 211 is reduced, and the conductivity of the substrate 211 is improved. In addition, the sheath 22 is insulative, thereby ensuring safety during installation and use by the user.

Preferably, two bus bar bodies 21 and two sheaths 22 are provided.

In the present embodiment, the two busbar bodies 21 and the sheath 22 are used to connect a live wire (not shown) and a neutral wire (not shown), respectively, which is advantageous for improving safety.

The bus bar device 2 is used for being connected with a circuit breaker (not shown), the use of electric wires (not shown) can be reduced, the condition that the electric wires are multiple and disordered when the bus bar device is connected with the circuit breaker is avoided, and the bus bar device 2 can enable the electric wires to be simple and attractive when the electric wires are connected with the circuit breaker. In the present embodiment, the bus bar device 2 is connected to a circuit breaker (not shown) on the one hand, as shown in fig. 3, and is connectable to the conductive device 1 on the other hand, and the bus bar body 21 is a conductive material.

The conductor device 1 is capable of being fitted to the bus bar device 2, as shown in fig. 4, the electric wire is inserted into the terminal frame 12 through the opening 113 formed in the housing 11, the electric wire is brought into contact with the conductive terminal plate 13 because the conductive terminal plate is provided in the terminal frame 12, and the other end of the conductive terminal plate 13 is passed out of the housing 11 to be provided outside the housing 11 and is brought into contact with the bus bar body 21 of the bus bar device 2, whereby the electricity of the electric wire can be conducted to the bus bar device 2 through the conductor device 1.

In the present embodiment, the opening 113 of the conductive device 1 is larger than the wire connection hole of the compact circuit breaker, and can be used to connect a wider and larger wire, such as a multi-core wire (not shown) having a crimp terminal.

In other embodiments of the present invention, the opening 113 of the conductive device 1 can be flexibly set according to the size of the actually inserted wire, so that the conductive device 1 can meet the requirements of the actual working conditions.

The bottom part 111 and the cover part 112 of the conductive device 1 are combined to form the housing 11, so that the terminal frame 12 is clamped in the housing 11, the stability of the fit between the terminal frame 12 and the housing 11 is improved, and the situation that the terminal frame 12 cannot be aligned with the opening 113 due to the fact that the terminal frame 12 moves in the housing 11 is avoided.

In the present embodiment, as shown in fig. 5 and 6, the protrusion 2231 formed on the side portion 223 of the sheath 22 of the bus bar device 2 and the recess 2111 formed on the bus bar body 21 are engaged with each other, and after the engagement, an engagement structure is formed to prevent the bus bar body 21 from moving around in the sheath 22, thereby functioning to fix the position of the bus bar body 21, so that the bus bar body 21 can be better connected to the conductive terminal plate 13 of the conductive device 1.

Preferably, as shown in fig. 1, a recessed hole 114 formed in such a manner as to surround the other end is provided in the case 11 at a penetrating portion of the other end of the conductive terminal plate 13.

More preferably, as shown in fig. 6, a plurality of circular arc portions 2221 curved in a direction away from the bus bar main body 21 are provided at the lower portion 222 of the sheath 22 of the bus bar device 2, and further, as shown in fig. 2, a plurality of convex portions 2232 which are continuous with the respective circular arc portions 2221 and which are convex in a direction away from the bus bar main body from the side portions 223 are formed at the side portions 223.

Preferably, the protrusion 2231 is offset from the protrusion 2232 in the length direction c.

In the present embodiment, since the position of the projecting portion 2232 is the same as the position of inserting the conductive terminal plate 13, in order to avoid interference between the conductive terminal plate 13 and the projection 2231 of the bus bar device 2 when the conductive device 1 is coupled to the bus bar device 2, the projection 2231 and the projecting portion 2232 are offset in the longitudinal direction c, so that the projection 2231 is engaged with the bus bar body 21 and the conductive terminal plate 13 is avoided.

In the present embodiment, a recessed hole 114 formed in a surrounding manner is provided in the case 11 at the portion through which the conductive terminal plate 13 is passed, and in match therewith, the bus bar device 2 is formed with a projecting portion 2232 at the portion through which the conductive terminal plate 13 is inserted. The shape and size of the inner periphery of the recessed hole 114 are matched with the outer periphery of the protruding portion 2232 of the bus bar device 2, and when the conductive device 1 and the bus bar device 2 are matched with each other, the conductive device 1 and the bus bar device 2 are fixed with each other, and the protruding portion 2232 is inserted into the recessed hole 114, so that the protruding portion 2232 is tightly connected with the recessed hole 114, and the stability of connection between the conductive device 1 and the bus bar device 2 is improved.

The circular arc portion 2221 provided at the lower portion 222 of the sheath 22 of the bus bar device 2 is for providing a margin when the conductive terminal board 13 of the conductive device 1 is mounted, so that the bus bar device 2 has a sufficient space for inserting the conductive terminal board 13. A portion of the circular arc portion 2221 and the protruding portion 2232 engage with the conductive device 1, thereby better positioning the connection between the bus bar device 2 and the conductive device 1.

More specifically, the lower portion 222 is further provided with notch portions 2222 connected to the respective circular arc portions 2221.

In the present embodiment, the notch portion 2222 is used for accommodating the conductive terminal board 13, so that the conductive terminal board 13 can extend into the bus bar device 2 from the notch portion 2222 to be conducted with the bus bar body 21, and the shape and size of the notch portion 2222 are matched with the portion of the conductive terminal board 13 extending into the bus bar device 2, so that the notch portion 2222 can be tightly connected with the conductive terminal board 13, and the conductive efficiency of the conductive device 1 and the bus bar device 2 as a whole is improved. When the conductive terminal plate 13 is inserted, the other end thereof is inserted from the notch portion 2222 to above the arc portion 2221 and supported by the arc portion 2221, and the connection is more stable.

Preferably, the bus bar device 2 further includes a second side portion 224 contacting an end of the substrate 211 to restrict the movement of the substrate 211 in the longitudinal direction.

In the present embodiment, the second side portion 224 can restrict the movement of the substrate 211 from the end of the substrate 211, thereby ensuring the position of the substrate 211 within the sheath 22 is fixed.

Next, the description returns to the specific description of the conductive device 1. Preferably, as shown in fig. 4, the conductive device 1 further includes a terminal screw 14, and the terminal screw 14 is disposed to be capable of abutting against the conductive terminal plate 13 through a screw hole 121 provided on the terminal frame 12.

More preferably, as shown in fig. 1, an operation hole 115 into which a tool is inserted to operate the terminal screw 14 is formed in the housing 11.

After the electric wire enters the terminal frame 12 from the opening 113, the electric wire contacts the conductive terminal board 13, the terminal screw 14 is used for fastening the connection between the conductive terminal board 13 and the electric wire, the electric wire is fixed between the top end of the terminal screw 14 and the conductive terminal board 13, the contact between the conductive terminal board 13 and the electric wire is more stable, the electric wire is prevented from falling out of the conductive device 1 due to unstable connection, short circuit can be reduced, and the conductive effect is improved.

In the present embodiment, the operation hole 115 is formed in the housing 11 so that a user can insert a tool into the operation hole 115 to fasten the terminal screw 14, and the provision of the operation hole 115 can improve the usability and the efficiency of use of the conductive device 1.

Preferably, the housing 11 is provided in two and integrally formed, and the terminal frame 12, the terminal screw 14, and the conductive terminal plate 13 are provided in two and disposed on the two housings 11, respectively.

In the present embodiment, the housing 11 is provided in two and integrally formed, so that the conductive device 1 is more convenient and more accurate in positioning when connected with the bus bar device 2. Similarly, two terminal frames 12, two terminal screws 14, and two conductive terminal plates 13 are provided and are disposed in the two housings 11, respectively. Two electrically conductive terminal blocks 13 are used for connecting live wire and zero line respectively, and live wire and zero line set up separately and keep certain distance and can avoid live wire and zero line to contact, reduce the production of short circuit phenomenon, improve the security.

Preferably, as shown in fig. 1, the two housings 11 are the same size and are not uniform in the height direction a (the height direction a is shown in fig. 4) but are offset from each other, i.e., are formed to be different in height.

The sizes of the two shells 11 are not consistent in the height direction a, enough space can be reserved in the staggered arrangement, the zero line and the live line are respectively inserted into the two shells 11 without interference, and the problem of short circuit and potential safety hazard caused by mutual interference of the live line and the zero line are avoided.

Preferably, as shown in fig. 7, a stopper 116 is provided in the housing 11 to abut against the conductive terminal plate 13 to restrict the movement of the conductive terminal plate 13 in the height direction a.

In the present embodiment, the housing 11 is provided with a limiting portion 116 for limiting the position of the conductive terminal board 13 in the housing 11, so as to prevent the conductive terminal board 13 from moving freely and affecting the conductive effect. Specifically, the stopper 116 is two recessed portions provided on the inner wall of the housing 11, and engages with corresponding portions of the conductive terminal plate 13.

Preferably, as shown in fig. 4, the two conductive terminal plates 13 each include a terminal frame fixing portion 131, a connecting portion 132 provided upright from the terminal frame fixing portion 131 in the height direction a, and a terminal portion 133 extending from the connecting portion 132 in the width direction b, but the connecting portions 132 of the two conductive terminal plates 13 are different in the standing height in the height direction a.

In the present embodiment, the terminal frame fixing portion 131 can be fitted with the terminal frame 12 so that the conductive terminal plate 13 can function to conduct current in the terminal frame 12. The connecting portion 132 has one end connected to the terminal frame fixing portion 131 and the other end connected to the terminal portion 133. The terminal portion 133 is used for being inserted into the bus bar device 2, so that current conduction is formed between the conductive device 1 and the bus bar device 2.

Since the bus bar body 21 and the sheath 22 of the bus bar device 2 are arranged in two rows, in order to allow the terminal portions 133 to be accurately brought into contact with and conducted to the bus bar body 21, the connecting portions 132 of the two conductive terminal plates 13 have different rising heights in the height direction a, so that the two conductive terminal plates 13 can be simultaneously inserted into the two rows of bus bar bodies 21 different in the height direction.

Preferably, as shown in fig. 8, the terminal frame fixing portion 131 includes an engaging portion 1311 that engages with the outer periphery of the terminal frame 12. The engaging portion 1311 is also engaged with the stopper portion 116, so that the conductive terminal plate 13 is fixed to the case 11.

The engaging portion 1311 of the terminal frame fixing portion 131 can be engaged with the terminal frame 12, so that the conductive terminal plate 13 cannot move anywhere in the terminal frame 12, and the stability of connection between the conductive terminal plate 13 and the terminal frame 12 is improved.

Those of skill in the art will appreciate that the specific features of the various embodiments may be adaptively separated or combined. This kind of split or the combination to specific technical feature can not lead to technical scheme skew the utility model discloses a principle, consequently, technical scheme after split or the combination will all fall into the utility model discloses an in the protection scope. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

So far, the technical solution of the present invention has been described with reference to a plurality of embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (7)

1. A bus bar device is characterized by comprising a bus bar body and a sheath, wherein the bus bar body is a strip-shaped component extending along the length direction of the bus bar body, the sheath is provided with an upper part, a lower part and a side part which respectively surround a part of the bus bar body from the upper part, the lower part and the side part, the side part is provided with a projection projecting towards the direction approaching to the bus bar body, and the bus bar body is provided with a concave part engaged with the projection.

2. The bus bar device according to claim 1, wherein a plurality of arc portions curved in a direction away from the bus bar main body are provided at the lower portion, and a plurality of convex portions continuous to the respective arc portions and protruding from the side portions in a direction away from the bus bar main body are formed at the side portions.

3. The bus bar device according to claim 2, wherein the projection and the projection are arranged to be offset in the length direction.

4. The bus bar apparatus of claim 3, wherein the bus bar body includes a base plate and a plurality of bus teeth extending from the base plate, a portion of the base plate being disposed in a space defined by the upper portion, the lower portion, and the side portion.

5. The bus bar apparatus of claim 4, further comprising a second side portion that abuts an end of the base plate to limit movement of the base plate in the length direction.

6. The bus bar apparatus of any of claims 1 to 3, wherein there are two each of the bus bar body and the sheath.

7. The bus bar device according to claim 4 or 5, wherein a notched portion is further provided on the lower portion in connection with each of the circular arc portions.

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