阅读说明：本技术 一种n/ l极位置可互换的微型断路器 (Miniature circuit breaker with interchangeable N/L pole positions ) 是由 汪联峰 张新雨 李金� 于 2021-08-12 设计创作，主要内容包括：本发明公开了一种N/L极位置可互换的微型断路器,其包括壳体,壳体包括两个侧盖及中盖,中盖将壳体隔离形成L极侧跟N极侧,中盖的两端分别设有L/N进线端子与L/N出线端子,L/N进线端子底部设有互感器容纳空间,且位于中盖两侧的L/N进线端子均跟所述互感器容纳空间的一端连通,且互感器容纳空间的另一端分别与L极侧及N极侧连通,靠近L/N出线端子处的中盖上设有可供L出线端子和N出线端子的接线分别进入N极侧及L极侧的走线孔,同一个产品在实现N在左及N在右互换时,其内部零件基本相同,除了用于连接的导线规格有所不同,相对重开一副N在右的方案,节省大件模具至少6副,减少了开发、生产的成本,提高了物料内控标准化的水平。(The invention discloses a miniature circuit breaker with interchangeable N/L pole positions, which comprises a shell, wherein the shell comprises two side covers and a middle cover, the middle cover isolates the shell to form an L pole side and an N pole side, the two ends of the middle cover are respectively provided with an L/N incoming line terminal and an L/N outgoing line terminal, the bottom of the L/N incoming line terminal is provided with a mutual inductor accommodating space, the L/N incoming line terminals positioned at the two sides of the middle cover are respectively communicated with one end of the mutual inductor accommodating space, the other end of the mutual inductor accommodating space is respectively communicated with the L pole side and the N pole side, the middle cover close to the L/N outgoing line terminal is provided with a wire feeding hole for enabling the connection wires of the L outgoing line terminal and the N outgoing line terminal to respectively enter the N pole side and the L pole side, when the N is interchanged at the left side and the right side, the internal parts of the same product are basically the same, except that the specifications of the wires used for connection are different, the scheme that one pair of N is set at the right is relatively repeated, at least 6 pairs of large molds are saved, the development and production costs are reduced, and the material internal control standardization level is improved.)

1. A miniature circuit breaker with interchangeable N/L pole positions comprises a shell, and is characterized in that: the casing includes two side covers and well lid, well lid keeps apart the formation L electrode side with the casing and follows the N electrode side, the both ends of well lid are equipped with L/N inlet wire terminal and L/N outlet terminal respectively, L/N inlet wire terminal bottom is equipped with mutual-inductor accommodation space, and the L/N inlet wire terminal that is located well lid both sides all with mutual-inductor accommodation space's one end intercommunication, just mutual-inductor accommodation space's the other end respectively with L electrode side and N electrode side intercommunication, be close to the wiring that is equipped with on the well lid of L/N outlet terminal department and can supply L outlet terminal and N outlet terminal to get into the walking hole on the N electrode side and L electrode side respectively.

2. The miniature circuit breaker of claim 1 wherein said miniature circuit breaker further comprises: the middle cover comprises a first middle cover used for fixing an incoming line terminal, a second middle cover used for fixing a breaker body and a third middle cover used for fixing an outgoing line terminal, wherein the two sides of the second middle cover are respectively provided with an L-pole line and an N-pole line, the two sides of the first middle cover are respectively provided with the incoming line terminal, the two sides of the third middle cover are respectively provided with the outgoing line terminal, the bottom of the first middle cover is provided with a mutual inductor accommodating space, the bottoms of the two sides of the first middle cover are communicated with the mutual inductor accommodating space, the other side of the mutual inductor accommodating space is communicated with the two sides of the second middle cover, a wiring space for wiring staggered arrangement is arranged between the third middle cover and the second middle cover, and the two sides of the third middle cover and one end of the second middle cover in contact can be communicated with the wiring space.

3. The miniature circuit breaker of claim 2 wherein said N/L pole position is interchangeable, wherein said circuit breaker further comprises: the both sides of lid all are equipped with first mounting groove in first, and the cell wall that is located the first mounting groove of one side of two gold pieces extends and forms the division board that is used for keeping apart incoming line terminal and two gold pieces.

4. The miniature circuit breaker of claim 3 wherein said N/L pole position is interchangeable, wherein said circuit breaker further comprises: the division board is the L type, surrounds incoming line terminal, and its downside that is located incoming line terminal is equipped with the breach groove that the wiring that can supply incoming line terminal to connect passed.

5. The miniature circuit breaker with interchangeable N/L pole positions as claimed in claim 3 or 4, wherein: the depth of the first mounting groove is smaller than the width of the wire inlet terminal.

6. The miniature circuit breaker with interchangeable N/L pole positions as claimed in claim 3 or 4, wherein: the upper end symmetry of first well lid is equipped with two first back-offs, the correspondence is equipped with first draw-in groove on the side lid.

7. The miniature circuit breaker of claim 2 wherein said N/L pole position is interchangeable, wherein said circuit breaker further comprises: and second mounting grooves are formed in two sides of the third middle cover, and the depth of each second mounting groove is smaller than the width of each wire inlet terminal.

8. The miniature circuit breaker of claim 7 wherein said N/L pole position is interchangeable, wherein said circuit breaker further comprises: the upper end symmetry of lid is equipped with two second back-offs in the third, the side is covered and is equipped with the second draw-in groove correspondingly.

Technical Field

The invention relates to the technical field of circuit breakers, in particular to a miniature circuit breaker with interchangeable N/L pole positions.

Background

Miniature circuit breaker on market has thermal protection and electromagnetism protect function in order to guarantee that L utmost point, all develops two kinds of products, be about to the whole mirror image design of inside L utmost point and N utmost point, in order to realize that the N utmost point is on left or the N utmost point is right, in fact the miniature circuit breaker on the left of N utmost point and the miniature circuit breaker on the right of N utmost point are in fact the different products of two kinds of inner structure mirror image designs, and partial part can not be general, need design two sets of products, lead to the cost to improve.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a miniature circuit breaker with interchangeable N/L pole positions.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a miniature circuit breaker of N/L utmost point position interchangeable, its includes the casing, the casing includes two side covers and well lid, well lid keeps apart the casing and forms L polar side with the N polar side, the both ends of well lid are equipped with L/N incoming line terminal and L/N outgoing lines terminal respectively, L/N incoming line terminal bottom is equipped with mutual-inductor accommodation space, and the L/N incoming line terminal that is located well lid both sides all with mutual-inductor accommodation space's one end intercommunication, just mutual-inductor accommodation space's the other end communicates with L polar side and N polar side respectively, and the wiring that is close to L/N outgoing lines terminal department is covered and is equipped with the wiring that can supply L outgoing lines terminal and N outgoing lines terminal to get into the line hole on N polar side and L polar side respectively.

The middle cover comprises a first middle cover used for fixing an incoming line terminal, a second middle cover used for fixing a breaker body and a third middle cover used for fixing an outgoing line terminal, wherein the two sides of the second middle cover are respectively provided with an L-pole line and an N-pole line, the two sides of the first middle cover are respectively provided with the incoming line terminal, the two sides of the third middle cover are respectively provided with the outgoing line terminal, the bottom of the first middle cover is provided with a mutual inductor accommodating space, the bottoms of the two sides of the first middle cover are communicated with the mutual inductor accommodating space, the other side of the mutual inductor accommodating space is communicated with the two sides of the second middle cover, a wiring space for wiring staggered arrangement is arranged between the third middle cover and the second middle cover, and the two sides of the third middle cover and one end of the second middle cover in contact can be communicated with the wiring space.

The both sides of lid all are equipped with first mounting groove in first, and the cell wall that is located the first mounting groove of one side of two gold pieces extends and forms the division board that is used for keeping apart incoming line terminal and two gold pieces.

The division board is the L type, surrounds incoming line terminal, and its downside that is located incoming line terminal is equipped with the breach groove that the wiring that can supply incoming line terminal to connect passed.

The depth of the first mounting groove is smaller than the width of the wire inlet terminal.

The upper end symmetry of first well lid is equipped with two first back-offs, the correspondence is equipped with first draw-in groove on the side lid.

And second mounting grooves are formed in two sides of the third middle cover, and the depth of each second mounting groove is smaller than the width of each wire inlet terminal.

The upper end symmetry of lid is equipped with two second back-offs in the third, the side is covered and is equipped with the second draw-in groove correspondingly.

The invention has the beneficial effects that: through setting up the mutual-inductor accommodation space with L incoming wire terminal and N incoming wire terminal intercommunication, can exchange L incoming wire terminal and N incoming wire terminal, enter into L pole side or N pole side in mutual-inductor accommodation space, outgoing line terminal then can correspond through walking the line hole, it is connected with exchanging on the N pole side to carry out L pole side, same product is realizing N when exchanging on the right side at left and N, its inside part is the same basically, except that being used for the wire specification of connecting to be different, reopen the scheme on the right of a pair of N relatively, save major possession mould at least 6 pairs, development has been reduced, the cost of production, the standardized level of accuse in the material has been improved.

Drawings

Fig. 1 is a schematic diagram of the principle of the present invention in which N is on the left and N is on the right.

FIG. 2 is a schematic diagram of the structure of the present invention with N on the left.

FIG. 3 is a schematic diagram of the structure of the present invention with N on the left N-pole side.

FIG. 4 is a schematic diagram of the structure of the present invention with N on the left L pole side.

FIG. 5 is a schematic diagram of the structure of the present invention with N on the right N-pole side.

FIG. 6 is a schematic diagram of the structure of the present invention with N on the right L-pole side.

FIG. 7 is a schematic view of the wire connection terminal of the present invention engaged with a first middle cap.

Fig. 8 is a schematic view of the outlet terminal of the present invention being mated with a third middle cap.

Fig. 9 is a schematic structural view of a first middle cap according to the present invention.

Fig. 10 is a schematic view of the first middle cover and the side cover of the present invention.

Fig. 11 is a schematic view of the third middle cover and the side cover of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically connected or connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The miniature circuit breaker comprises a shell, wherein the shell comprises two side covers 1 and a middle cover, the middle cover isolates the shell to form an L pole side and an N pole side, an N pole arc sheet 15, an N pole moving contact 14 and an N pole static contact 13 are sequentially arranged on the N pole side from a wire inlet end to a wire outlet end, the N wire inlet terminal is sequentially communicated with the N pole arc sheet 15, the N pole moving contact 14 and the N pole static contact 13 through the N pole arc sheet 15, the N pole moving contact 14 and the N pole static contact 13 to form an N pole circuit, a bimetallic sheet, an L pole moving contact and a tripper are sequentially arranged on the L pole side from the wire inlet end to the wire outlet end, namely the L pole wire inlet terminal is communicated with the L pole wire outlet terminal through the bimetallic sheet 10, the L pole moving contact 11 and the tripper 12 to form an L pole circuit, the tripper comprises a magnet yoke, an iron core sleeve arranged on the magnet yoke, a moving iron core arranged in the iron core sleeve, a moving iron core sleeve arranged on the iron core sleeve, a moving contact, a tripper is arranged on the tripper, and a switch is arranged on the tripper, a switch is arranged on the tripper and a switch is arranged on the tripper, a switch is arranged on the tripper and a switch, a switch is arranged on the tripper and a switch, and a switch is arranged on the tripper and a switch, a switch is arranged on the tripper and a switch, and a switch, a switch is arranged on the tripper, and a switch, a switch is arranged on the tripper and a, The coil is sleeved on the outer side of the iron core sleeve, one end of the coil is connected with the magnetic yoke, and the other end of the coil is used as an electric connection part and can be connected with an L-pole wire outlet terminal through a wiring or a lead.

The both ends of well lid are equipped with L/N incoming wire terminal and L/N outgoing line terminal respectively, the mutual lock of side cap and well lid can be fixed L/N incoming wire terminal and L/N outgoing line terminal realization, and L/N incoming wire terminal bottom is equipped with mutual-inductor accommodation space, and the L/N incoming wire terminal that just is located well lid both sides all with mutual-inductor accommodation space's one end intercommunication, promptly the both ends of well lid both sides are equipped with the mounting groove that is used for installing L/N incoming wire terminal and L/N outgoing line terminal respectively, and the degree of depth of mounting groove is less than the width of terminal, when being about to the terminal is fixed to be set up in the mounting groove, its part exposes the mounting groove, utilizes the side cap to accomplish the fixed of terminal with well lid cooperation simultaneously, and the side cap is located one side of terminal and leaves the space that the wire that supplies connecting terminal to pass, and the space that the mounting groove of wherein installation L/N incoming wire terminal left is located L/N incoming wire terminal The space reserved by the installation groove for installing the L/N outgoing line terminal is positioned at the inner side of the L/N outgoing line terminal, so that the L incoming line terminal and the N incoming line terminal at two sides can lead out the connection wire or the lead wire connected with the L incoming line terminal and the N incoming line terminal at the space, and the L outgoing line terminal and the N outgoing line terminal can also lead out the connection wire or the lead wire connected with the L outgoing line terminal and the N outgoing line terminal at the reserved space.

The other end of the mutual inductor containing space is respectively communicated with the L pole side and the N pole side, namely the L lead 31 and the N lead 32 of the L/N incoming line terminal can be connected with the bimetallic strip in the L pole side or the N pole arc sheet in the N pole side in a crossed or non-crossed manner after entering the mutual inductor containing space 4 and passing through the mutual inductor 5 arranged in the mutual inductor containing space, the L/N incoming line terminal can be exchanged, and the L/N incoming line terminal can be connected with the corresponding bimetallic strip in the L pole side and the N pole arc sheet in the N pole side in a crossed manner in the mutual inductor containing space, the L/N exchange of the incoming line terminal can be realized, the internal parts do not need to be replaced, the middle cover close to the L/N outgoing line terminal is provided with wire holes for leading the connection wires of the L outgoing line terminal and the N outgoing line terminal to respectively enter the N pole side and the L pole side, namely the connection wire or the L lead of the L outgoing line terminal can be directly connected with a release, and the wiring or the conducting wire of the N-pole outgoing line terminal is connected with the N-pole static contact, and when L/N exchange occurs, the two wiring or conducting wires enter the corresponding area through the wiring hole, so that the L-pole outgoing line terminal and the N-pole outgoing line terminal which are exchanged can be correctly connected with the L-pole line and the N-pole line.

According to the method, the wiring or the lead of the L/N incoming line terminal and the wiring or the lead of the L/N outgoing line terminal are only required to be crossed, and the spaces corresponding to the two sides are respectively introduced, so that even if the L and the N are interchanged, the N can be correctly connected with the internal corresponding L pole line and the internal corresponding N pole line when the N is interchanged on the left or on the right, the internal parts do not need to be replaced, and the interchange can be realized only by changing the spot welding positions of the corresponding wiring or the lead.

The well lid in this application can be the components of a whole that can function independently, well lid is including being used for fixed incoming line terminal 3 first well lid 2, the second well lid 6 that is used for fixed circuit breaker body and the third well lid 7 that is used for fixed outgoing line terminal 8, and lid is all fixed by two curb plates in first well lid and the third, and the preferred mode that can adopt the joint, if the upper end symmetry of first well lid is equipped with two first back-offs 24, the side is covered and is equipped with first draw-in groove correspondingly. The upper end of the third middle cover is symmetrically provided with two second reverse buckles 71, and the side covers are correspondingly provided with second clamping grooves. The first middle cover and the third middle cover are fixedly connected with the side plate in a mutually clamping mode, and positions for placing an incoming line terminal and an outgoing line terminal are formed between the side plate and the first middle cover and between the side plate and the third middle cover.

The two sides of the second middle cover are respectively provided with an L-pole circuit and an N-pole circuit, the L-pole circuit and the N-pole circuit are on the same level, the two sides of the first middle cover are respectively provided with an incoming terminal 3, the two sides of the third middle cover are respectively provided with an outgoing terminal 8, and the bottom of the first middle cover is provided with a mutual inductor accommodating space 4, and the bottoms of both sides of the first middle cover can be communicated with the mutual inductor accommodating space, namely, after the side cover is folded with the first middle cover, the bottom of the side cover still leaves a space for a lead to pass through and can be directly connected with a wire inlet terminal through the lead, and enters the mutual inductor accommodating space, the other side of the mutual inductor accommodating space is communicated with the two sides of the second middle cover, the wire can be connected with the double-gold-piece or the N-pole arc striking piece in the second middle cover respectively after passing through the mutual inductor, and can be crossed in the accommodating space of the mutual inductor to realize the exchange of incoming line terminals.

A wiring space for the staggered arrangement of the wiring is arranged between the third middle cover and the second middle cover, and both sides of the third middle cover and one end of the second middle cover, which is in contact with the wiring space 9, can be communicated with the wiring space, namely, after the wires connected with the outgoing line terminals enter the wiring space, whether the wires are in cross connection or not can be determined according to whether the terminals are interchanged or not.

On the basis of adopting the same set of parts, the incoming line terminal and the outgoing line terminal at two ends can be exchanged, the conversion of N on the left or the right is realized, and the cost is reduced.

Lid 2's both sides all are equipped with first mounting groove 21 in first, and the cell wall that is located the first mounting groove of one side of two gold sheets extends and forms the division board that is used for keeping apart incoming line terminal and two gold sheets, and this division board plays the incoming line terminal and keeps apart between two gold levels, improves the security.

Division board 22 is the L type, surrounds incoming wire terminal, and its downside that is located incoming wire terminal is equipped with the breach groove 23 that the wiring that can supply incoming wire terminal to connect passed, when with the lateral wall cooperation, the incoming wire terminal of this department can be by whole parcel, separates completely with the contact of two gold sheets, and the breach groove that sets up then regards as the connector of wire, can guarantee that the wire that links to each other with the incoming wire terminal of this department enters into the mutual-inductor accommodation space.

The depth of the first mounting groove 21 is smaller than the width of the wire inlet terminal, so that when the side wall and the middle cover are closed, a space for a wire to pass through can be reserved between the side wall and the middle cover.

And second mounting grooves are formed in two sides of the third middle cover, the depth of each second mounting groove is smaller than the width of each incoming line terminal, and therefore when the side wall and the middle cover are closed, a space for a lead to pass through can be reserved between the side wall and the middle cover.

The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of protection of the present invention.