CN210201479U

CN210201479U - Surge protector

Info

Publication number: CN210201479U
Application number: CN201921598085.2U
Authority: CN
Inventors: Dongdong Huang; 黄冬冬
Original assignee: Zhejiang Chuanben Electronic Technology Co Ltd
Current assignee: Zhejiang Chuanben Electronic Technology Co Ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-03-27
Anticipated expiration: 2029-09-24

Abstract

The utility model discloses a surge protector, including installing a plurality of surge protection units in the casing, casing one end is equipped with a plurality of incoming line terminals, and the other end is equipped with a leading-out terminal, still including installing the busbar in order to connect leading-out terminal and a plurality of surge protection unit in the casing, be provided with the mounting structure who keeps the two fixed relative position between busbar and the casing, adopt this technical scheme's surge protector, realize reliably installing the busbar inside the casing, just so avoided the busbar to expose and hang in the casing outside, can not receive external force operation again and influence, installation stability is good, use safe and reliable to only need set up a leading-out terminal and can satisfy ground connection operation requirement, simplify the product structure, installation wiring is convenient, both can save installation space, has guaranteed the aesthetic property of product again.

Description

Surge protector

Technical Field

The utility model relates to a lightning protection technical field, concretely relates to surge protector.

Background

The surge protector is an electrical product with a nonlinear element, and can protect not only overvoltage and overcurrent caused by lightning electromagnetic pulse, but also surge generated due to line voltage fluctuation, misoperation and the like. At present, the most widely used surge protector is installed at the front ends of a distribution board, a distribution box and equipment in a power supply low-voltage system to protect the equipment from the influence of surge transmitted on a power line.

All will use three-phase surge protector among present a lot of distribution systems, three-phase surge protector is assembled by three solitary surge protector usually and forms to connect out the PE line at three surge protector's lower terminal respectively and carry out ground connection, for the convenience of ground connection operation, current way is pegged graft in proper order in two surge protector's that face mutually lower terminal through the busbar, carries out ground connection operation promptly for establishing ties together three surge protector in proper order. However, the following problems still exist when the existing surge protector adopts a bus bar mode: the existing bus bar is exposed and hung outside one end of a shell of the surge protector, is not beautiful, is easy to shake or even fall off due to the influence of external force, and has poor installation stability.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the busbar dew among the prior art and hanging outside surge protector's casing one end, neither pleasing to the eye, receive external force to influence the production again very easily and rock or even drop, the poor problem of installation stability.

In order to solve the technical problem, the utility model provides a surge protector, including the casing that is the integral type structure setting, with install in a plurality of surge protection units in the casing, casing one end corresponds a plurality ofly the surge protection unit is equipped with a plurality of incoming lines terminal, and its other end is provided with a leading-out terminal, still including install in order to connect in the casing leading-out terminal is with a plurality of the busbar of surge protection unit, the busbar with be provided with between the casing and keep the fixed mounting structure of the two relative position, the busbar have extend cross-under in connecting plate among the leading-out terminal.

As a preferable scheme, the mounting structure includes a plurality of limiting slots disposed in the housing near one side of the outlet terminal, and a limiting plate end disposed on the bus bar and adapted to be inserted into the limiting slots.

As a preferred scheme, a plurality of the limiting clamping grooves are sequentially arranged at intervals along the length direction of the shell.

As a preferred scheme, the busbar includes the mounting plate end that is used for connecting surge protection unit, and with the mounting plate end links to each other integratively the limiting plate end, the mounting plate end with the limiting plate end is the L shape structure and links to each other the setting.

Preferably, a notch groove is formed in a position, corresponding to the outlet terminal, of the limiting plate end, and the connecting plate is formed by extending and bending from a side edge of the notch groove to one side of the outlet terminal.

As a preferred scheme, the casing includes integrated into one piece's base and upper cover, be equipped with in the base and be fit for installing a plurality of surge protection unit's mounting groove, be provided with in the mounting groove with a plurality of the baffle that the surge protection unit separates, the baffle with set up between the one end cell wall of mounting groove and form spacing draw-in groove.

As a preferable scheme, two ends of the base are respectively provided with a terminal groove suitable for mounting the incoming line terminal and the outgoing line terminal, and the end face of the shell is provided with a wiring hole communicated with the terminal grooves.

As a preferred scheme, the surge protection unit comprises a piezoresistor chip installed in the installation groove and an elastic release piece connected to the top of the piezoresistor, one end of the piezoresistor chip is connected with the incoming line terminal, and the elastic release piece is connected with the busbar.

As a preferable scheme, the elastic release fastener comprises a bending end connected with the piezoresistor chip, a plane end attached and connected with the mounting plate end of the busbar, and an elastic connecting sheet connected with the bending end and the plane end.

As a preferable scheme, at least one fixing hole is correspondingly arranged on the planar end and the mounting plate end, and a fixing piece is arranged in the fixing hole in a penetrating manner so that the planar end and the mounting plate end are fixedly connected.

Compared with the prior art, the technical scheme of the utility model have following advantage:

1. the utility model provides an among the surge protector, through installing the connection in the casing the bus bar of leading-out terminal and a plurality of surge protection unit, the connecting plate cross-under of bus bar is in leading-out terminal, thereby establish ties a plurality of surge protection unit to same leading-out terminal on, only need set up a leading-out terminal like this and can satisfy ground connection operation requirement, be favorable to simplifying the product structure, the installation wiring is convenient, and it is fixed to keep the mounted position through mounting structure and casing according to the bus bar, adopt this technical scheme's surge protector, the realization is reliably installed the bus bar inside the casing, just so avoided the bus bar to expose and hang in the casing outside, also can not receive the external force operation influence again, installation stability is good, safe and reliable in utilization, installation space both can be saved, the aesthetic property of product has been guaranteed again.

2. The utility model provides an among the surge protector, peg graft in a plurality of spacing draw-in grooves of casing through the spacing board end so that the busbar is reliably fixed in the casing, right the busbar realizes spacing installation effect, can prevent effectively that the busbar from taking place to rock and offset in can the casing, this kind of simple structure, simple to operate, the cooperation is fixed reliable and stable.

3. The utility model provides an among the surge protector, the connecting plate by the side court in breach groove terminal outgoing lines one side extends the shaping of bending, and this kind of structure setting adopts integrated into one piece structure shaping for connecting plate and busbar, makes the shaping simple, and structural stability is good, and the installation is also comparatively convenient, plays electrically conductive connection effect through the connecting plate between terminal outgoing lines and busbar.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a surge protector provided by the present invention;

fig. 2 is a schematic view of the internal structure of the surge protector shown in fig. 1;

fig. 3 is a schematic view of an installation structure of the bus bar of the present invention;

fig. 4 is a schematic plan view of the base of the present invention;

fig. 5 is a schematic structural view of the bus bar of the present invention;

description of reference numerals: 1-shell, 11-base, 12-upper cover, 13-mounting groove, 14-clapboard, 15-wiring hole, 2-surge protection unit, 21-elastic release fastener, 211-bending end, 212-plane end, 22-fixing piece, 3-incoming wire terminal, 4-outgoing wire terminal, 5-bus bar, 51-limiting plate end, 52-mounting plate end, 53-connecting plate, 54-notch groove and 6-limiting clamping groove.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

The present embodiment is described in detail below with reference to the accompanying drawings:

the embodiment provides a surge protector as shown in fig. 1-5, including a casing 1 that is the setting of integral type structure, and install in a plurality of surge protection unit 2 in the casing 1, casing one end corresponds a plurality of surge protection unit 2 is equipped with a plurality of incoming line terminals 3, and its other end is provided with an outlet terminal 4, still including install in the casing 1 in order to connect outlet terminal 4 with a plurality of surge protection unit 2's busbar 5, busbar 5 with be provided with between the casing 1 and keep the fixed mounting structure in the relative position of the two, busbar 5 has the extension and cross connect in connecting plate 53 in outlet terminal 4.

The above embodiment is the core technical scheme of this embodiment, through install in casing 1 and connect outlet terminal 4 and the busbar 5 of a plurality of surge protection unit 2, the connecting plate of busbar is worn-out in outlet terminal, thereby establish ties a plurality of surge protection unit to same outlet terminal on, only need set up an outlet terminal like this and can satisfy ground connection operation requirement, be favorable to simplifying product structure, the installation wiring is convenient, and it is fixed with casing 1 to keep the mounted position through mounting structure according to busbar 5, thereby realize reliably installing the busbar inside the casing, just so avoided busbar 5 to expose and hang in the casing outside, also can not receive external force operation influence again, the installation stability is good, safe and reliable in utilization, both can save installation space, the aesthetic property of product has been guaranteed again.

The specific structure of the mounting structure is described in detail below with reference to fig. 2-4:

the mounting structure comprises a plurality of limiting clamping grooves 6 which are arranged in the shell 1 close to one side of the outgoing line terminal 4, and limiting plate ends 51 which are arranged on the busbar 5 and are suitable for being inserted into the limiting clamping grooves 6, and referring to fig. 4, the limiting clamping grooves 6 are sequentially arranged at intervals along the length direction of the shell 1, so that the mounting direction of the busbar 5 in the shell 1 is limited.

As a preferred embodiment, the bus bar 5 includes an installation plate end 52 for connecting the surge protection unit, and a limiting plate end 51 integrally connected to the installation plate end 52, the installation plate end 52 and the limiting plate end 51 are in an L-shaped structure and are connected to each other, wherein a notch 54 is formed in a position of the limiting plate end 51 corresponding to the outlet terminal 4, and the connecting plate 53 is formed by extending and bending a side of the notch 54 toward one side of the outlet terminal, which is a structural configuration that the connecting plate 53 and the bus bar 5 are integrally formed, so that the manufacturing and forming are simple, the structure is stable, the installation is also convenient, and the connecting plate functions as a conductive connection between the outlet terminal 4 and the bus bar 5.

In this embodiment, as shown in fig. 1 to 3, the housing 1 includes a base 11 and an upper cover 12 which are integrally formed, and an existing manner of assembling a plurality of surge protectors is no longer adopted, a mounting groove 13 suitable for mounting a plurality of surge protection units 2 is provided in the base 11, a plurality of partition plates 14 which separate the plurality of surge protection units are provided in the mounting groove 13, so as to achieve an electrical isolation effect, the limiting card slot 6 is provided between the partition plate 14 and a wall of one end of the mounting groove 13, that is, the busbar is vertically inserted between the plurality of partition plates, and four surge protection units 2 are provided in the housing to meet the connection requirement of three-phase four-wire.

Further preferably, the both ends of base 11 are provided with respectively and are fit for the installation incoming wire terminal and the terminal groove of leading-out terminal, terminal groove one side intercommunication mounting groove 13, be provided with the intercommunication on the casing 1 terminal surface the wiring hole 15 in terminal groove, the outside wire passes through wiring hole 15 penetrates in the incoming wire terminal or the leading-out terminal in terminal groove.

The specific arrangement of the surge protection unit is described in detail below with reference to fig. 2-3:

the surge protection unit 2 includes a varistor chip (not shown in the drawings) mounted in the mounting groove, and an elastic release 21 connected to the top of the varistor, one end of the varistor chip is connected to the incoming line terminal 3, the elastic fastening 21 is connected to the bus bar 5, specifically, the elastic fastening 21 includes a bent end 211 connected to the varistor chip and a flat end 212 attached to the mounting board end of the bus bar, and an elastic connecting piece connecting the bending end 211 and the plane end, the bending end 211 is welded with the piezoresistor chip, and bend and serve and be provided with warning marker, the upper cover corresponds warning marker is provided with the instruction window, and operating personnel accessible instructs the operating condition of window observation surge protector. When the current which can be borne by the surge protector in the circuit passes through, the temperature of the joint of the elastic tripping piece and the piezoresistor chip is quickly raised, when the melting point is reached, the elastic tripping piece 21 and the piezoresistor chip are quickly tripped and disconnected, and the elastic tripping piece 21 is bounced off to one side far away from the piezoresistor chip under the action of the elastic force of the elastic tripping piece 21, so that thermal tripping protection is realized.

In order to ensure that the elastic release 21 is reliably connected with the bus bar 5, three fixing holes are correspondingly formed in the planar end 212 and the mounting plate end 52, and a fixing member 22 is inserted into the fixing holes to ensure that the planar end 12 is fixedly connected with the mounting plate end 52, the fixing member is a screw or a rivet, and the fixing hole is a threaded hole or a rivet hole.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. 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. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A surge protector characterized in that: including casing (1) that is the integral type structure setting, and install in a plurality of surge protection unit (2) in casing (1), casing one end corresponds a plurality ofly surge protection unit (2) are equipped with a plurality of incoming line terminal (3), and its other end is provided with one terminal (4) that goes out, still including install in order to connect in casing (1) terminal (4) and a plurality of busbar (5) of surge protection unit (2), busbar (5) with be provided with between casing (1) and keep the fixed mounting structure of the two relative position, busbar (5) have extend cross-under in connecting plate (53) in terminal (4).

2. A surge protector according to claim 1, wherein: the mounting structure comprises a plurality of limiting clamping grooves (6) which are arranged in the shell (1) and close to one side of the outgoing line terminal (4), and limiting plate ends (51) which are arranged on the bus bar (5) and are suitable for being inserted into the limiting clamping grooves (6).

3. A surge protector according to claim 2, wherein: the limiting clamping grooves (6) are sequentially arranged at intervals along the length direction of the shell (1).

4. A surge protector according to claim 3, wherein: busbar (5) including be used for connecting surge protection unit's mounting plate end (52), and with mounting plate end (52) an organic whole links to each other spacing board end (51), mounting plate end (52) with spacing board end (51) are the setting that links to each other of L shape structure.

5. A surge protector according to any of claims 2-4, wherein: the position of the limiting plate end (51) corresponding to the outlet terminal (4) is provided with a notch groove (54), and the connecting plate (53) is formed by extending and bending the side edge of the notch groove (54) towards one side of the outlet terminal.

6. A surge protector according to claim 5, wherein: casing (1) includes integrated into one piece structure shaping's base (11) and upper cover (12), it is a plurality of to be equipped with in base (11) to be fit for the installation the mounting groove (13) of surge protection unit (2), be provided with in mounting groove (13) with a plurality of baffle (14) that the surge protection unit separates, baffle (14) with set up between the one end cell wall of mounting groove (13) and form spacing draw-in groove (6).

7. A surge protector according to claim 6, wherein: the terminal groove that is fit for the installation incoming wire terminal and terminal outgoing lines is provided with respectively at the both ends of base (11), be provided with on casing (1) terminal surface intercommunication terminal groove's wiring hole (15).

8. A surge protector according to claim 6 or 7, wherein: surge protection unit (2) including install in the piezo-resistor chip in the mounting groove with connect elasticity at piezo-resistor top takes off fastener (21), piezo-resistor chip one end with incoming line terminal (3) link to each other, elasticity take off fastener (21) with busbar (5) link to each other.

9. A surge protector according to claim 8, wherein: the elastic fastening releasing piece (21) comprises a bending end (211) connected with the piezoresistor chip, a plane end (212) attached and connected with the mounting plate end of the busbar, and an elastic connecting piece connected with the bending end and the plane end.

10. A surge protector according to claim 9, wherein: the plane end (212) and the mounting plate end (52) are correspondingly provided with at least one fixing hole, and a fixing piece (22) penetrates through the fixing hole to enable the plane end (212) and the mounting plate end (52) to be fixedly connected.