CN207624636U - A kind of moulded case circuit breaker - Google Patents
A kind of moulded case circuit breaker Download PDFInfo
- Publication number
- CN207624636U CN207624636U CN201721748002.4U CN201721748002U CN207624636U CN 207624636 U CN207624636 U CN 207624636U CN 201721748002 U CN201721748002 U CN 201721748002U CN 207624636 U CN207624636 U CN 207624636U
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- China
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- pedestal
- bottom plate
- card base
- circuit breaker
- card slot
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Abstract
A kind of moulded case circuit breaker, a kind of moulded case circuit breaker, including an insulation shell, the insulation shell include lid（1）, pedestal（2）And bottom plate（3）, it is characterised in that：The bottom plate（3）Two edges on upper at least one side opposite are towards pedestal（2）It is equipped with clamping portion（31）, the clamping portion（31）And pedestal（2）In the two, one is equipped with card base（311）, card base is corresponded in another one（311）Equipped with card slot（22）, the bottom plate（3）Pass through card base（311）With card slot（22）Clamping engagement realization and pedestal（2）Be fixedly connected.It is the utility model high temperature resistant, non-aging and can assemble simple and reliable, can more automatic assembly line be suitble to assemble, improve production efficiency, can repeatedly dismantle, reduce production cost.
Description
Technical field
The utility model is related to low voltage electrical apparatus technology fields, and in particular to a kind of moulded case circuit breaker.
Background technology
Generally comprised in moulded case circuit breaker in the prior art insulation shell, operating mechanism, release lever, moving contact,
Static contact, arc-chutes, insulation shaft and buckle releaser.Insulation shell is divided into the parts such as lid, pedestal and bottom plate, sealing plug, wherein
Pedestal is equipped with for installing the through-hole with electrical component, using screw after the through-hole fixes component, the head of screw
Portion outside, since screw is connect with electrical component, in order to ensure electric clearance and creepage distance, it is also necessary to use one piece of bottom
Plate and sealing plug are fixed on pedestal, and head of screw is covered.
In the prior art, there are two types of the common modes secured a base plate on pedestal, as shown in Figure 1, the first is to make
With double faced adhesive tape, specifically the one side of double faced adhesive tape is pasted on the base 2, or being attached to double faced adhesive tape on one side on bottom plate 1, then will
Bottom plate 1 is close to seat surface, to fix on the base 2 bottom plate 1；As shown in Fig. 2, the second way is to use sunk screw
Or countersunk self-tapping screw, bottom plate 3 are equipped with through-hole, mounting hole corresponding with through-hole on bottom plate 3 are provided on pedestal 2, use
Screw is passed through and is connect with 2 upper installing hole of pedestal after through-hole on bottom plate 3, to fix on the base 2 bottom plate 3.Above-mentioned bottom plate
A kind of fixed form uses double faced adhesive tape, however due to double faced adhesive tape non-refractory, and it is easy to aging, once so breaker is in high temperature
Environment or after the use of long period, the fixed effect of double faced adhesive tape will be deteriorated, and bottom plate is caused to can be easily separated with pedestal；The
Two kinds of fixed forms are connected using sunk screw or countersunk self-tapping screw, although screw energy high temperature resistant, and it is non-aging, however by
Thermosets is generally used in breaker of plastic casing pedestal, base aperture is susceptible to sliding tooth situation when screw fastens, once sliding tooth,
Screw just can not firmly fix bottom plate, it is necessary to replace pedestal, manpower and materials is caused to waste.
Invention content
The purpose of this utility model is to provide a kind of moulded case circuit breaker, to solve plastic housing open circuit in the prior art
Device bottom plate is caused or non-refractory due to being fixed using double faced adhesive tape or screw, easy to aging, or what cannot repeatedly be dismantled ask
Topic.
In order to achieve the above objectives, the technical solution adopted in the utility model is：A kind of moulded case circuit breaker, including one
Insulation shell, the insulation shell include lid, pedestal and bottom plate, and two edges at least one side opposite are towards pedestal on the bottom plate
It is equipped with clamping portion, in both the clamping portion and pedestal, one is equipped with card base, and corresponding to card base in another one is equipped with card slot,
The bottom plate passes through card base and the clamping engagement realization of card slot and being fixedly connected for pedestal.
In said program, the card slot is set on pedestal, and removal hole is provided with by the card slot, in the removal hole and card slot
The position of card base corresponds to and communicates, so as to act on card base force to dismantle bottom plate through removal hole.
In said program, the card base is set on pedestal, is provided with removal hole by the card base, the removal hole and clamping portion
Position correspond to communicate, so as to through removal hole to clamping portion force act on bottom plate to be dismantled.
In said program, the insulation shell further includes sealing plug, and the sealing plug is arranged on pedestal.
The utility model compared with prior art, more resistant to high temperature, non-aging and can assemble simple and reliable, can more be suitble to
Automatic assembly line assembles, and improves production efficiency, can repeatedly dismantle, and reduces production cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of the prior art 1；
Fig. 2 is the structural decomposition diagram of the prior art 2；
Fig. 3 is the utility model embodiment structural schematic diagram；
Fig. 4 is the schematic diagram of the bottom surface of the utility model embodiment pedestal；
Fig. 5 is the stereoscopic schematic diagram of the bottom surface of the utility model embodiment pedestal upward；
Fig. 6 is the decomposition diagram of the utility model embodiment structure；
Fig. 7 is the assembling schematic diagram of the bottom plate and pedestal of the utility model embodiment；
Fig. 8 is the floor diagram of the utility model embodiment；
Fig. 9 is the sealing plug schematic diagram of the utility model embodiment；
Figure 10 is the independent sealing plug schematic diagram of the utility model embodiment.
In the figures above：1, it covers；2, pedestal；21, seamed edge；22, card slot；23, removal hole；24, mounting hole；241, groove；
25, fixing groove；3, bottom plate；31, clamping portion；311, card base；32, convex ribs；4, sealing plug；41, cylinder；411, flange；412, it opens
Mouth straight trough；5, metal screws；51, stationary contact head screw；52, operating mechanism screw；53, electromagnetic system screw；54, upper and lower terminals
Sub- screw.
Specific implementation mode
The utility model is further described with reference to the accompanying drawings and embodiments：
Embodiment：Shown in Fig. 3-Figure 10：
A kind of moulded case circuit breaker, including an insulation shell, the insulation shell include lid 1, pedestal 2, bottom plate 3 and
Sealing plug 4, as shown in figure 4, the bottom surface for the mainly pedestal 2 that Fig. 4 is shown, bottom surface is equipped with multiple for holding electrical component
Metal screws 5.
In the present embodiment, the electric component of the breaker of plastic casing includes：Static contact, operating mechanism, electromagnetic system and
Upper lower connecting terminal（It is not shown in figure）.The metal screws 5 for holding electrical component include：For fixing static contact
Stationary contact head screw 51, the operating mechanism screw 52 for fixed operation mechanism, the electromagnetic system screw for Motionless electromagnetic system
53 and for link plate upper lower connecting terminal screw 54, wherein as shown in figure 4, according to electric component installation position
The position of difference, various metal screws also can be different, and in the present embodiment, the upper connecting terminal screw 54a, which is located at, closes on institute
State the position at the upper end edge of bottom surface；Stationary contact head screw 51 can be set to below upper connecting terminal screw 54a；Operating mechanism screw
52 can be set to 51 lower section of stationary contact head screw, be in the present embodiment the position of approximate mid-section；The electromagnetic system screw 53 is set
In 52 lower section of operating mechanism screw；The lower connecting terminal screw 54b is located at the position at the lower end edge for closing on the bottom surface；Institute
It states in the bottom surface of pedestal 2 at least partly edge and is equipped with seamed edge 21, to surround recess portion for the bottom plate 3 is arranged.
As shown, in a preferred specific embodiment, the seamed edge 21 of the pedestal 2 is surrounded for the bottom plate to be arranged
3 square-shaped recess, the stationary contact head screw 51, operating mechanism screw 52 and electromagnetic system screw 53 concentrate in recess portion, corresponding
3 shape of the bottom plate be also the rectangular of dimensional fits, protection stationary contact head screw 51, operating mechanism screw 52 and electromagnetism can be covered
System screw 53.
As shown in figure 8, two edges at least one side opposite are equipped with clamping portion 31 and convex towards pedestal 2 on the bottom plate 3
Muscle 32, the bottom plate 3 are isolation material, and the clamping portion 31 and the bottom plate 3 are integrally formed vertical L-shaped shape and described
31 elastically deformable of clamping portion, which is provided with card base 311, the card base 311 corresponded on the pedestal 2 and is equipped with card slot 22,
Correspond to the convex ribs 32 on the pedestal 2 and be equipped with fixing groove 25, the bottom plate 3 is by the flexible deformation of clamping portion 31 by card base
311 with the clamping engagement of card slot 22, and be engaged by clamping realization and the pedestal 2 that pass through convex ribs 32 and fixing groove 25 are fixedly connected.
Also, removal hole 23 is provided with by the card slot 22, the removal hole 23 with the position of card base 311 is corresponding in card slot 22 communicates, with
Just 311 force of card base can be acted on to dismantle bottom plate 3 through removal hole 23.
The card base 311 is preferably that both sides are each provided with two card bases 311；In specific one embodiment, such as Fig. 7 institutes
Show there is the card slot 22, certain 22 position of above-mentioned card slot to be only for example, this field skill in the upper lower seamed edge 21 of the pedestal 2
Art personnel can change according to the different location of card base 311, be not limited with above-mentioned.
As shown in fig. 6-7, it is covered with respectively at the upper connecting terminal screw 54a and lower connecting terminal screw 54b recess portions
The sealing plug 4, the sealing plug 4 can it is each it is mutually separately installed as shown in Figure 10, also can three be connected installation as shown in figure 9,
Certainly when the number of poles of breaker is two poles or quadrupole, the number of phases of corresponding sealing plug 4 is also that two-phase or four are connected, specific one
In embodiment, the sealing plug 4 is convexly equipped with pillar 41 towards pedestal 2, and corresponding to pillar 41 on the pedestal 2 is equipped with mounting hole
24, the sealing plug 4 is embedded in its pillar 41 in the mounting hole 24 of pedestal 2, and the periphery of the pillar 41 is equipped with flange
411, and corresponding flange 411 is equipped with groove 241 on the hole wall of mounting hole 24, which is embedded in groove 241 and is engaged by clamping.
The flange 411 is the boss structure of wedge shape, and two flanges 411 are preferably symmetrically set on pillar 41.
When above-mentioned bottom plate 3 and sealing plug 4 are fixed with pedestal 2, only need to by the clamping portion 31 of bottom plate 3 card base 311 with
The card slot 22 of pedestal 2 blocks, convex ribs 32 are blocked with fixing groove 25 assembly, flange 411 and pedestal on sealing plug 4 is fixed
2 groove 241 blocks that assembly is fixed.Assembling process is simple, is suitble to the assembly of automatic assembly line, can effectively improve
Production efficiency.When dismounting, first abate sealing plug 4, then by removal hole 23, the card base 311 contradicted on clamping portion 31 is detached from card slot
22 carry out the dismounting of bottom plate 3, can repeatedly dismantle, and reduce waste.
Above-mentioned is citing, and in practice, also card base 311 can be set on pedestal 2, and card slot 22 is located at clamping portion 31
On, again by the cooperation of card base 311 and card slot 22, the fixed effect of bottom plate 3 and pedestal 2 can be played.And the card base
311 sides are similarly provided with removal hole 23, and the removal hole 23 is corresponding with the position of clamping portion 31 around card slot 22 to be communicated, so as to
31 force of clamping portion can be acted on to dismantle bottom plate 3 through removal hole 23.
Above-described embodiment is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement according to this, the scope of protection of the utility model can not be limited with this.
It is all according to equivalent change or modification made by the spirit of the present invention essence, should all cover the scope of protection of the utility model it
It is interior.
Claims (4)
1. a kind of moulded case circuit breaker, including an insulation shell, which includes lid（1）, pedestal（2）And bottom plate
（3）, it is characterised in that：The bottom plate（3）Two edges on upper at least one side opposite are towards pedestal（2）It is equipped with clamping portion（31）,
The clamping portion（31）And pedestal（2）In the two, one is equipped with card base（311）, card base is corresponded in another one（311）Equipped with card
Slot（22）, the bottom plate（3）Pass through card base（311）With card slot（22）Clamping engagement realization and pedestal（2）Be fixedly connected.
2. moulded case circuit breaker according to claim 1, it is characterised in that：The card slot（22）Set on pedestal（2）On,
The card slot（22）Side is provided with removal hole（23）, the removal hole（23）With card slot（22）Interior card base（311）Position correspond to phase
It is logical, so as to through removal hole（23）To card base（311）Force effect is with by bottom plate（3）Dismounting.
3. moulded case circuit breaker according to claim 1, it is characterised in that：The card base（311）Set on pedestal（2）
On, the card base（311）Side is provided with removal hole（23）, the removal hole（23）With clamping portion（31）Position correspond to communicate, with
It just can be through removal hole（23）To clamping portion（31）Force effect is with by bottom plate（3）Dismounting.
4. moulded case circuit breaker according to claim 1, it is characterised in that：The insulation shell further includes sealing plug
（4）, the sealing plug（4）It is arranged in pedestal（2）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721748002.4U CN207624636U (en) | 2017-12-14 | 2017-12-14 | A kind of moulded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721748002.4U CN207624636U (en) | 2017-12-14 | 2017-12-14 | A kind of moulded case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207624636U true CN207624636U (en) | 2018-07-17 |
Family
ID=62823931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721748002.4U Active CN207624636U (en) | 2017-12-14 | 2017-12-14 | A kind of moulded case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207624636U (en) |
-
2017
- 2017-12-14 CN CN201721748002.4U patent/CN207624636U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |