CN208608155U - A kind of high current thermal protector - Google Patents
A kind of high current thermal protector Download PDFInfo
- Publication number
- CN208608155U CN208608155U CN201821339598.7U CN201821339598U CN208608155U CN 208608155 U CN208608155 U CN 208608155U CN 201821339598 U CN201821339598 U CN 201821339598U CN 208608155 U CN208608155 U CN 208608155U
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- spring leaf
- leaf
- bimetal leaf
- high current
- movable contact
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Abstract
The utility model relates to a kind of high current thermal protectors; including the shell with rectangular cavities; the copper soleplate for being installed to stationary contact is provided in cavity; side on copper soleplate close to cavity hatch end is additionally provided with pedestal; bimetal leaf one end is fixed in base top, for raising height of the bimetal leaf relative to copper soleplate；Spring leaf is additionally provided in cavity, spring leaf one end is connect with pedestal, and is covered at the top of bimetal leaf, and part of the spring leaf other end beyond bimetal leaf is for installing movable contact.In the utility model, support construction by using bimetal leaf as spring leaf, the movable contact positioned at spring leaf end raise distance by lever principle to increase, to avoid causing movable contact to separate unstable problem with stationary contact because of reasons such as vibrations in use process, pass through the rebound effect of spring leaf simultaneously, can be when circuital current be normal, guarantee movable contact and stationary contact is adjacent to power.
Description
Technical field
The utility model relates to a kind of high current thermal protectors.
Background technique
Electrical equipment encounter Current Voltage value it is unstable when be easy to appear the hidden danger of Electrical Safety, generally use heat at present
The setting of protector overcomes the injury caused by electrical equipment of above-mentioned hidden danger.
During use, moving contact is set to arm-type bimetal leaf end to existing thermal protector mostly, passes through gold
Belong to elastic force and the stationary contact point contact of piece or separate, since arm type structure only fix by one end, other end activity is arranged, therefore is easy
The problem of shape during use due to end fluctuates and circuit connection occurs or disconnect failure, has seriously endangered electricity consumption and has set
Standby service performance.
In view of the above shortcomings, the designer is actively subject to research and innovation, to found a kind of high current thermal protector,
Have practical value it more.
Utility model content
The purpose of the utility model is to provide a kind of high current thermal protector, solves movable contact and stationary contact point contact or separate
Unstable problem ensure that the normal use and protection of electrical equipment.
The technical solution of the utility model are as follows: a kind of high current thermal protector, it is described including the shell with rectangular cavities
The copper soleplate for being installed to stationary contact is provided in cavity, the side at the close cavity hatch end on the copper soleplate
It is additionally provided with pedestal, bimetal leaf one end is fixed in the base top, for raising the bimetal leaf relative to institute
State the height of copper soleplate；
Spring leaf is additionally provided in the cavity, described spring leaf one end is connect with pedestal, and is covered in the bimetallic
At the top of piece, part of the spring leaf other end beyond the bimetal leaf is for installing movable contact.
Further, it is provided with pressing plate at the top of the spring leaf, the pressing plate, spring leaf, bimetal leaf and pedestal pass through
Copper rivet connection；Wherein, the pressing plate and conducting wire electrical communication.
Further, spring leaf includes sequentially connected first plane, folding surface and mounting surface；
The bimetal leaf includes the second plane and arc surface；
First plane and the second plane with the pedestal for connecting, and the folding surface is relative to first plane
It is deviated to the direction far from the bimetal leaf, the mounting surface is used for the installation of the movable contact, and relative to described first
Plane is deviated to the direction close to the bimetal leaf；
When circuit is normal, the folding surface and mounting surface are tangent with the arc surface respectively.
Further, spring leaf bottom is provided with protrusion.
Further, it is additionally provided with support base on copper soleplate, is supported for the free end to the bimetal leaf.
Further, on the direction that the spring leaf extends from the copper rivet to the movable contact, tapering width.
By above scheme, the utility model at least has the following advantages:
The set-up mode directly being connect with bimetal leaf by changing previous movable contact, breakthrough is made using bimetal leaf
For the support construction of spring leaf, makes the movable contact positioned at spring leaf end raise distance by lever principle and increase, to have
Avoid in use process to effect causes movable contact to separate unstable problem with stationary contact because of reasons such as vibrations, passes through simultaneously
The rebound effect of spring leaf, can be when circuital current be normal, and guarantee movable contact and stationary contact is adjacent to power, thus movable contact with it is quiet
The compactness of contact fitting.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments recorded in the utility model, for those of ordinary skill in the art, is not making the creative labor
Under the premise of, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the explosive view of high current thermal protector in the utility model；
Fig. 2 is the front view (section view) of high current thermal protector in the utility model；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is the front view (section view) of spring leaf；
Fig. 5 is the top view of Fig. 4；
Fig. 6 is the front view (section view) of bimetal leaf；
Appended drawing reference: conducting wire 1, support base 11, pressing plate 2, movable contact 3, spring leaf 4, the first plane 41, folding surface 42, peace
It is dress face 43, protrusion 44, bimetal leaf 5, the second plane 51, arc surface 52, copper rivet 6, stationary contact 7, pedestal 8, copper soleplate 9, outer
Shell 10.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
The embodiments of the present invention are write in a progressive manner.
As shown in Fig. 1 ~ 3, a kind of high current thermal protector is provided in cavity including the shell 10 with rectangular cavities
Copper soleplate 9 for being installed to stationary contact 7, the side on copper soleplate 9 close to cavity hatch end are additionally provided with pedestal 8, bottom
5 one end of bimetal leaf is fixed in 8 top of seat, for raising height of the bimetal leaf 5 relative to copper soleplate 9；In cavity also
It is provided with spring leaf 4,4 one end of spring leaf is connect with pedestal 8, and is covered in 5 top of bimetal leaf, and 4 other end of spring leaf exceeds
The part of bimetal leaf 5 is for installing movable contact 3.
High current thermal protector in the present embodiment is connect with one conducting wire 1 in the process of work, by copper soleplate 9, will
Spring leaf 4 and bimetal leaf 5 are connect with another strand of conducting wire 1, to entire high current thermal protector is linked into circuit, conducting wire
After 1 is powered, in the case where normal work, the movable contact 3 being fixed on spring leaf 4 and the stationary contact 7 being fixed on copper soleplate 9
Electrical connection, circuit is connected.And when circuit occurs abnormal, the electric current in conducting wire 1 increases, so that 5 temperature distortion of bimetal leaf,
To squeeze spring leaf 4, jacked up in the medium position of spring leaf 4, so that movable contact 3 and stationary contact 7 divide
From so that circuit disconnection, plays a protective role to electrical equipment.In the above process, by change previous movable contact 3 directly with it is double
The set-up mode that sheet metal 5 connects, the breakthrough support construction using bimetal leaf 5 as spring leaf 4 pass through lever principle
So that the movable contact 3 for being located at 4 end of spring leaf is raised distance and is increased, to efficiently avoid in use process because of originals such as vibrations
It thus causes movable contact 7 to separate unstable problem with stationary contact 3, while passing through the rebound effect of spring leaf 4, it can be in circuit electricity
When flowing normal, guarantee movable contact 7 is adjacent to power with stationary contact 3, thus the compactness that movable contact 7 is bonded with stationary contact 3.
As the preferred of above-described embodiment, pressing plate 2, pressing plate 2, spring leaf 4,5 and of bimetal leaf are provided at the top of spring leaf 4
Pedestal 8 is connected by copper rivet 6；Wherein, 1 electrical communication of pressing plate 2 and conducting wire.In the present embodiment, portion that pressing plate 2 is connect with conducting wire 1
Point can epoxy resin seal by way of stable connection, and realize cavity hatch end sealing.By copper rivet 6 to pressing plate 2,
The Fast Installation, it can be achieved that entire high current thermal protector is fixed in spring leaf 4, bimetal leaf 5 and pedestal 8, while can have
Effect guarantees the stability of connection.
As the preferred of above-described embodiment, as shown in Figures 4 and 5, spring leaf 4 includes sequentially connected first plane 41, folding
Bent face 42 and mounting surface 43；Bimetal leaf 5 includes the second plane 51 and arc surface 52；First plane 41 and the second plane 51 are used for
It is connect with pedestal 8, folding surface 42 is deviated relative to the first plane 41 to the direction far from bimetal leaf 5, and mounting surface 43 is for moving
The installation of contact 3, and deviated relative to the first plane 41 to the direction close to bimetal leaf 5；When circuit is normal, folding surface 42
It is tangent with arc surface 52 respectively with mounting surface 43.In this optimal technical scheme, folding surface 42 and mounting surface 43 respectively with arc surface
52 tangent settings, so that extruding point scattering device of the entire spring leaf 4 to bimetal leaf 5, therefore the elastic force of entire spring leaf 4
It is more reliable and more stable to the extruding of bimetal leaf 5, as shown in Figure 2；When bimetal leaf 5 is heated upward deformation, more because of mounting surface
The 43 free end in contact with bimetal leaf 5 relative to the first plane 41 to the offset in close 5 direction of bimetal leaf and earlier, from
And make entire thermal protector to the corresponding sensitiveer of curent change.In order to amplify said effect, set in 4 bottom of spring leaf
It is equipped with protrusion 44, by the setting of protrusion 44, so that above-mentioned time of contact can more shorten.
As the preferred of above-described embodiment, support base 11 is additionally provided on copper soleplate 9, for the freedom to bimetal leaf 5
End is supported.By the setting of support base 11, it may make bimetal leaf 5 will not be because of oversized and copper bottom when circuit is normal
Plate 9 and contact avoid the generation of short-circuit conditions while guaranteeing that 5 size of bimetal leaf requires.
On the direction extended as the preferred of above-described embodiment, spring leaf 4 from copper rivet 6 to movable contact 3, width gradually contracts
It is small.As shown in fig. 6, may make the structure of entire spring leaf 4 relatively reliable by the setting, thus drive movable contact 3 accurate and
Stable movement, while by gradually collapsing, the weight of entire spring leaf 4 is effectively reduced, so that its elastic shape
Change adds sensitive.
The above is only the preferred embodiment of the utility model, is not intended to limit the utility model, it is noted that
For those skilled in the art, without deviating from the technical principle of the utility model, it can also do
Several improvements and modifications out, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of high current thermal protector, which is characterized in that including the shell (10) with rectangular cavities, be arranged in the cavity
There is the copper soleplate (9) for being installed to stationary contact (7), the side at the close cavity hatch end on the copper soleplate (9)
It is additionally provided with pedestal (8), bimetal leaf (5) one end is fixed at the top of the pedestal (8), for raising the bimetal leaf
(5) height relative to the copper soleplate (9)；
It is additionally provided in the cavity spring leaf (4), described spring leaf (4) one end is connect with pedestal (8), and is covered in described double
At the top of sheet metal (5), spring leaf (4) other end is used to carry out movable contact (3) beyond the part of the bimetal leaf (5)
Installation.
2. high current thermal protector according to claim 1, which is characterized in that be provided with pressure at the top of the spring leaf (4)
Plate (2), the pressing plate (2), spring leaf (4), bimetal leaf (5) and pedestal (8) are connected by copper rivet (6)；Wherein, the pressure
Plate (2) and conducting wire (1) are in electrical communication.
3. high current thermal protector according to claim 2, which is characterized in that the spring leaf (4) includes being sequentially connected
The first plane (41), folding surface (42) and mounting surface (43)；
The bimetal leaf (5) includes the second plane (51) and arc surface (52)；
First plane (41) and the second plane (51) for being connect with the pedestal (8), the folding surface (42) relative to
First plane (41) deviates to the direction far from the bimetal leaf (5), and the mounting surface (43) is used for the movable contact
(3) installation, and deviated relative to first plane (41) to the direction close to the bimetal leaf (5)；
When circuit is normal, the folding surface (42) and mounting surface (43) are tangent with the arc surface (52) respectively.
4. high current thermal protector according to claim 3, which is characterized in that spring leaf (4) bottom is provided with convex
It rises (44).
5. high current thermal protector according to claim 1, which is characterized in that be additionally provided with branch on the copper soleplate (9)
It supports seat (11), for being supported to the free end of the bimetal leaf (5).
6. high current thermal protector according to claim 3, which is characterized in that the spring leaf (4) is from the copper rivet
(6) on the direction that Xiang Suoshu movable contact (3) extends, tapering width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821339598.7U CN208608155U (en) | 2018-08-17 | 2018-08-17 | A kind of high current thermal protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821339598.7U CN208608155U (en) | 2018-08-17 | 2018-08-17 | A kind of high current thermal protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208608155U true CN208608155U (en) | 2019-03-15 |
Family
ID=65680147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821339598.7U Active CN208608155U (en) | 2018-08-17 | 2018-08-17 | A kind of high current thermal protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208608155U (en) |
-
2018
- 2018-08-17 CN CN201821339598.7U patent/CN208608155U/en active Active
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