CN109755053A - Switch, seal and its forming method - Google Patents
Switch, seal and its forming method Download PDFInfo
- Publication number
- CN109755053A CN109755053A CN201910101562.8A CN201910101562A CN109755053A CN 109755053 A CN109755053 A CN 109755053A CN 201910101562 A CN201910101562 A CN 201910101562A CN 109755053 A CN109755053 A CN 109755053A
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- China
- Prior art keywords
- seal
- insulated part
- inboard portion
- exterior portion
- forming method
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 71
- 238000004870 electrical engineering Methods 0.000 claims abstract description 56
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims abstract description 28
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 238000002360 preparation method Methods 0.000 claims abstract description 3
- 239000007769 metal material Substances 0.000 claims description 35
- 239000004033 plastic Substances 0.000 claims description 13
- 229920003023 plastic Polymers 0.000 claims description 13
- 239000011810 insulating material Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 230000005855 radiation Effects 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 230000005670 electromagnetic radiation Effects 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 239000002826 coolant Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000005034 decoration Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 238000013461 design Methods 0.000 description 9
- 239000010410 layer Substances 0.000 description 7
- 238000009413 insulation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 206010014357 Electric shock Diseases 0.000 description 3
- 210000003168 insulating cell Anatomy 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 206010014405 Electrocution Diseases 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Casings For Electric Apparatus (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
This disclosure relates to be used for the seal of electrical engineering and electric apparatus comprising exterior portion, inboard portion and insulated part, insulated part are arranged between outer side section and inboard portion, they separated and are insulated.Inboard portion is embedded in insulated part by cold charge hot cover process, and exterior portion is nested in outside the laminate that inboard portion is assembled with insulated part by cold charge hot cover process.Present disclosure also relates to the forming methods of above-mentioned seal comprising: preparation step prepares exterior portion, inboard portion and insulated part respectively；Inboard portion is cooled to the first temperature by cooling step；The inboard portion for being cooled to the first temperature is embedded in insulated part by the first installation step in a co-planar fashion；Exterior portion is heated to second temperature by heating stepses；And second installation step, outside the laminate that the exterior portion that would be heated to second temperature is nested in inboard portion in a co-planar fashion and insulated part is assembled.
Description
Technical field
This disclosure relates to electrical engineering and electric apparatus field, and in particular to switch, for the seal of electrical engineering and electric apparatus and its molding side
Method.
Background technique
Electrical engineering and electric apparatus is widely used in today's society numerous areas, such as the wall type switch being used in daily life
Deng.In many cases, due to electrical engineering and electric apparatus itself charge and there is a certain security risk, so usually electrical engineering and electric apparatus need
Meet certain insulating requirements.
For example, having in national standard clearly stipulate that quoting the 10th article of GB/T16915.1 about the insulating requirements that wall type switchs
Text is as follows in " electrocution-proof protection ":
10.3.1 metal cover or cover board should be protected with the superinsulation being made of insulating cell or interlayer insulating layer.These are absolutely
Edge liner or interlayer insulating layer are answered:
--- lid or cover board or ontology fixed to switch, and if should fix not to be allowed to permanent damages, just cannot be by it
Remove；Or
--- it is designed to:
They can not be replaced in out of position；
If having lacked them, switch just cannot be used or significantly imperfect；
Even if conductor is deviate from from terminal, also do not had for example by fixing screws between charging member and metal cover or cover board
The unexpected contact Deng caused by is dangerous；
There are precautionary measures, creepage distance or electric clearance can be prevented to be brought down below the specified value of the 23rd chapter.
It is whether qualified, it is checked by observation.
Above-mentioned insulating cell or interlayer insulating layer should all meet the test requirements document of the 16th and 23 chapters.
Note: the insulating layer being sprayed on on the inside or outside of metal cover or cover board be not regarded as insulating cell described in this subclause or
Interlayer insulating layer.
Currently, the insulating Design mode of the wall type switch with metal outer frame has following several, and one is increase to be grounded
Protection, but this substantive requirements of form must increase ground wire E using special mounting back box or when being routed, and keep installation steps more numerous
It is trivial；It is not all-metal one is can contact face after installation, the bottom in accessible face is separated with nonmetallic materials；One is
Insulated abruption structure is done inside metal outer frame using general Shooting Technique.
However, above-mentioned first way needs to introduce additional component, the complexity of structure, second way shadow are increased
The texture for ringing product, is generally not used in the product of higher-end.The third mode is after injection molding only by plastics itself to metal
Adhesion strength is attached to smooth metal surface, and intensity is weaker on Impact direction during installation, and becomes as caused by cooling meat
Shape is more embodied in weak position, and entirety is inconsistent to appear in surface, influences surface quality,
Summary of the invention
One purpose of the disclosure is to overcome at least one defect in the prior art, and structure is simple, without drawing
Enter additional component, while product has the good appearance of texture.
According to one aspect of the disclosure, a kind of switch is provided comprising:
Operation module, the operation module are used to start or control the operation of the switch；
Electrical module, the electrical module are electrically connected with the operation module；And
Seal, the seal support the operation module and surround the electrical module, the insulation dress
It sets and includes:
Exterior portion, the exterior portion are made of metal material；
Inboard portion, the inboard portion are made of metal material；And
Insulated part, the insulated part are made of insulating material, and are arranged in the exterior portion and the inside portion
/, the exterior portion is separated and is insulated with the inboard portion,
Wherein by aftermentioned forming method, the inboard portion is embedded in the insulated part, and the exterior portion is embedding
It covers outside the laminate that the inboard portion and the insulated part are assembled.
In one embodiment of switch, the thermal expansion coefficient of the metal material of the exterior portion is constituted than described in composition
The thermal expansion coefficient of the metal material of inboard portion is big.
In one embodiment of switch, the exterior portion is made of aluminium alloy, and the inboard portion is made of copper.
In one embodiment of switch, the insulated part is made of plastics.
According to another aspect of the present disclosure, a kind of seal for electrical engineering and electric apparatus is provided comprising:
Exterior portion, the exterior portion are made of metal material；
Inboard portion, the inboard portion are made of metal material；And
Insulated part, the insulated part are made of insulating material, and are arranged in the exterior portion and the inside portion
/, the exterior portion is separated and is insulated with the inboard portion,
Wherein by aftermentioned forming method, the inboard portion is embedded in the insulated part, and the exterior portion is embedding
It covers outside the laminate that the inboard portion and the insulated part are assembled.
In one embodiment of seal, the thermal expansion coefficient of the metal material of the exterior portion is constituted than constituting
The thermal expansion coefficient of the metal material of the inboard portion is big.
In one embodiment of seal, the exterior portion is made of aluminium alloy, and the inboard portion is by copper
At.
In one embodiment of seal, the insulated part is made of plastics.
According to the second aspect of the disclosure, a kind of electrical engineering and electric apparatus is provided comprising seal as described above.
It further include electrical module in one embodiment of electrical engineering and electric apparatus, wherein the inboard portion surrounds the electricity
Gas module, and the exterior portion limits the boundary of the electrical engineering and electric apparatus.
It further include the operation module supported by the seal and/or dress in one embodiment of electrical engineering and electric apparatus
Adorn module.
According to the third aspect of the disclosure, a kind of forming method of seal for electrical engineering and electric apparatus is provided, it is described exhausted
Edge device includes exterior portion, inboard portion and insulated part, and the forming method includes:
Preparation step is respectively prepared the exterior portion and the inboard portion by metal material, is made of insulating material
The insulated part；
The inboard portion is cooled to the first temperature by cooling step；
The inboard portion for being cooled to the first temperature is embedded in the insulation division by the first installation step in a co-planar fashion
In point；
The exterior portion is heated to second temperature by heating stepses；And
Second installation step, the exterior portion that would be heated to second temperature are nested in the inside in a co-planar fashion
Outside the laminate that part is assembled with the insulated part.
In one embodiment of forming method, further includes: after first installation step, wait the inside portion
Divide and is restored to room temperature with the laminate that the insulated part is assembled so that the inboard portion and the insulated part were realized
It is full of cooperation, subsequently into the heating stepses.
In one embodiment of forming method, in the heating stepses, while to the inboard portion and it is described absolutely
Laminate made of edge packing is matched and the exterior portion are heated, until the exterior portion reaches second temperature.
In one embodiment of forming method, further includes: after first installation step, be not to wait for the inside
The laminate that part is assembled with the insulated part is restored to room temperature and is directly entered the heating stepses.
In one embodiment of forming method, the thermal expansion coefficient for constituting the metal material of the exterior portion is made to compare structure
Thermal expansion coefficient at the metal material of the inboard portion is big.
In one embodiment of forming method, the exterior portion is made by aluminium alloy, is made of copper the inside portion
Point.
In one embodiment of forming method, it is made of plastics the insulated part.
In one embodiment of forming method, further includes: after the second installation step, wait inboard portion 320 with
The laminate and exterior portion 310 that insulated part 330 is assembled are restored to room temperature.
In one embodiment of forming method, in the heating stepses, the wavelength of selective radiation is so that the outside
Partially absorb most of energy.
In one embodiment of forming method, in the heating stepses, Xiang Suoshu exterior portion apply electric current come into
Row heating.
In one embodiment of forming method, in the heating stepses, heated by electromagnetic radiation.
In one embodiment of forming method, in the heating stepses, heated by direct heat transfer.
In one embodiment of forming method, in the cooling step, using the coolant liquid with inert nature into
Row cooling.
Detailed description of the invention
After following description is read in conjunction with the figure, many aspects of the disclosure are better understood with, attached
In figure:
Fig. 1 is the perspective view of electrical engineering and electric apparatus according to an embodiment of the present disclosure；
Fig. 2 is the decomposition perspective view of the electrical engineering and electric apparatus of Fig. 1；
Fig. 3 is the perspective view of the seal of the electrical engineering and electric apparatus of Fig. 2；
Fig. 4 is the decomposition perspective view of the seal of Fig. 3.
Specific embodiment
The description disclosure that hereinafter reference will be made to the drawings, attached drawing therein show several embodiments of the disclosure.However it should
Understand, the disclosure can show in a number of different manners, it is not limited to embodiment as described below；It is true
On, embodiment as described below is intended to make the disclosure of the disclosure more complete, and absolutely proves this public affairs to those skilled in the art
The protection scope opened.It is to be further understood that embodiment disclosed herein can be combined in various ways, to provide more
Mostly additional embodiment.
It should be understood that in all the appended drawings, identical appended drawing reference indicates identical element.It in the accompanying drawings, is clear
The size of Chu Qijian, certain features can be deformed.
It should be understood that the terminology in specification is only used for description specific embodiment, it is no intended to limit the disclosure.
All terms (including technical terms and scientific terms) that specification uses unless otherwise defined, all have those skilled in the art
Normally understood meaning.For the sake of concise and/or is clear, well known function or structure can be no longer described in detail.
Singular " one ", " described " and "the" that specification uses are unless clearly indicate, comprising plural form.Explanation
The terminology "include", "comprise" and " containing " that book uses indicate there is claimed feature, but there are one or more for repulsion
A other feature.The terminology "and/or" that specification uses includes related any and whole group for listing one or more of item
It closes.The terminology " between x and y " and should be construed as including X and Y " between about X and Y " that specification uses.This specification
The terminology " between about X and Y " used is meant " between about X and about Y ", and the terminology that this specification uses
" from about X to Y " is meant " from about X to about Y ".
In the description, claim an element be located at another element "upper", " attachment " to another element, " connected " to another member
Whens part, " coupling " are to another element or " contact " another element etc., the element can on another element, be attached to
Another element is connected to another element, is attached to another element or another element of contact, or may exist intermediary element.Phase
Control claims an element is " direct " to be located at another element "upper", " directly attachment " extremely another element, " being directly connected to " to another
When one element, " direct-coupling " to another element or " directly contacting " another element, it will be not present intermediary element.In specification
In, a feature placement at another feature " adjacent ", can refer to a feature have the part Chong Die with adjacent feature or
Part above or below adjacent feature.
In the description, the spatial relationship of "upper", "lower", "left", "right", "front", "rear", "high", " low " etc. is used
Diction can illustrate a feature and the relationship of another feature in the accompanying drawings.It should be understood that spatial relationship terminology in addition to comprising
It also include the different direction of device in use or operation except orientation shown in the drawings.For example, device in the accompanying drawings reverses
When, originally it was described as the feature in other feature " lower section ", was can be described as at this time in " top " of other feature.Device may be used also
To orient (be rotated by 90 ° or in other orientation) in other ways, relative space relation will be interpreted accordingly at this time.
Below with reference to attached drawing description according to the seal and its forming method for electrical engineering and electric apparatus of the disclosure.
As shown in Figure 1, showing the perspective view of the electrical engineering and electric apparatus 1 according to one embodiment of the disclosure.The electrical engineering and electric apparatus 1
It is exemplarily illustrated as the form of wall type switch, it will be appreciated by a person skilled in the art that electrical engineering and electric apparatus 1 is not limited to this,
Or carry out other electrical engineering and electric apparatus of insulation electrocution-proof protection.
As shown in Fig. 2, showing the decomposition perspective view of the electrical engineering and electric apparatus 1 of Fig. 1.Electrical engineering and electric apparatus 1 generally includes operation module
10, electrical module 20 and seal 30.
Operation module 10 may include for manual contact pressing key, with electrical module 20 be electrically connected, with
In the operation of control electrical module 20.Operation module 10 can at least partly be made of nonmetallic materials, such as by plastics system
At.
Electrical module 20 usually may be conductive for realizing the electric function of electrical engineering and electric apparatus 1.Electrical module 20 can be with
It is encapsulated in box, which is at least partly made of nonmetallic materials, such as is made of plastics.
Seal 30 is generally about electrical module 20, and after electrical engineering and electric apparatus 1 assembles, seal can be limited substantially
Determine the boundary of electrical engineering and electric apparatus 1.For example, in the example of fig. 1 and 2, when being seen along overlook direction, i.e., from 10 direction of operation module
When the direction of electrical module 20 is seen, the outermost edges of seal 30 are the outermost edges of electrical engineering and electric apparatus 1.
In some embodiments, operation module 10 can usually be supported by seal 30, when so that being seen along overlook direction, behaviour
Make 30 coating electrical module 20 of module 10 and insulation module.In this way, in the case where such as electrical engineering and electric apparatus 1 is that wall type switchs,
After being installed on wall, electrical module 20 is shielded and hiding.
Electrical engineering and electric apparatus 1 is also provided with decoration module 40, which can be the form of adornment frame, the adornment frame
Around operation module 10, there is the shape to match with the profile of operation module 10.Adornment frame is generally also by seal 30
Support.
Electrical engineering and electric apparatus 1 is also provided with back box (not shown), and electrical module 20 can be contained in the back box, together
When, back box can be contacted around the seal 30 of electrical module 20, and can be installed in back box.
Fig. 3 shows the perspective view of the seal 30 for electrical engineering and electric apparatus 1 of one embodiment according to the disclosure.Such as
Shown in Fig. 4, the decomposition perspective view of the seal 30 is shown.The seal 30 surrounds electrical module 20, to will be electrical
Module 20 and use environment insulate, and prevent user's electric shock when using and touching the electrical engineering and electric apparatus 1.The seal 30 includes
Exterior portion 310, inboard portion 320 and insulated part 330.
For convenience's sake, in the illustrated embodiment, the seal of the disclosure is explained so that wall type switchs as an example
Embodiment, however, those skilled in the art should understand that, the electrical engineering and electric apparatus of the disclosure is not limited to this.
In the illustrated embodiment, exterior portion 310 is the part in outer fix, and inboard portion 320 is in inside
The part of position, i.e. exterior portion 310 are in outside relative to inboard portion 320.In other embodiments, exterior portion 310
Also it may be at the inside of inboard portion 320.After assembling electrical engineering and electric apparatus 1, inboard portion 320 is close to electrical module 20 and encloses
Around electrical module 20, compared with inboard portion 320, exterior portion 310 is far from electrical module 20.With back box,
Inboard portion 320 can contact back box, and can be installed in back box.For example, inboard portion 320 can be by such as buckling
The mode of cooperation is mounted directly in back box, or can be indirectly mounted to back box by such as centre fixed structure
On.
In the illustrated embodiment, exterior portion 310 and inboard portion 320 are shown as the form of square box, however this public affairs
The seal 30 opened is not limited to this, according to such as design of electrical module 20 or the specific requirements according to electrical engineering and electric apparatus 1,
Exterior portion 310 and inboard portion 320 can use corresponding shape, such as circular frame, oval frame, triangle frame etc., or
Person can using other structures form other than frame, only need its can around electrical module in order to by electrical module with make
It is separated and is insulated with environment.
In some embodiments, as compact as possible in order to which electrical engineering and electric apparatus to be made to, seal 30 needs to have relatively thin
Size in order to guarantee the structural strength of seal 30, need its at least part using high-intensitive in this case
Material is made, such as metal material.Exterior portion 310 and inboard portion 320 can be preferably made of metal material, such as can
To be made of aluminium alloy, copper or other suitable metal materials.Certainly, it will be understood by those skilled in the art that according to specifically setting
Meter demand, such as in the structure for not needing thin size, exterior portion 310 and inboard portion 320 can also be by nonmetallic materials
It is made.
As shown in figure 4, exterior portion 310 is shown as the form of box, in the illustrated embodiment, exterior portion 310 is in
Outside is the part contacted with such as user in seal 30.The outer surface of exterior portion 310 can be processed
Processing, such as mechanical, electricity, chemical treatment etc., to make it have good sense of touch.
As shown in figure 4, inboard portion 320 is shown as the form of frame, in the illustrated embodiment, inboard portion 320 is in
Inside, is the floor portions in seal 30, is directly or indirectly contacted with back box.In this case, inboard portion 320
Shape and size can correspondingly be designed according to back box.
Insulated part 330 is made of insulating material, such as can be made of plastics.It will be understood by those skilled in the art that
According to the needs of practical application, insulated part 330 can also be made of any other suitable insulating materials.Insulated part
330 are set between exterior portion 310 and inboard portion 320, this can be realized by aftermentioned cold charge hot cover process, as follows
Text detailed description.
Please refer to Fig. 3 and Fig. 4, insulated part 330 is arranged between outer side section 310 and inboard portion 320, to will be outer
Side section 310 and inboard portion 320 separate and insulate.Gold is all made of in exterior portion 310 as described above and inboard portion 320
Belong in situation made of material, since inboard portion 320 is close and surrounds electrical module 20, inboard portion 320 may
Conduct electric current.At this point, if on-insulated between exterior portion 310 and inboard portion 320, it would be possible that leading to exterior portion 310
Correspondingly conduct electric current.In this case, when user touches exterior portion 310, it may cause the risk of electric shock.Root
According to embodiment of the disclosure, insulated part 330 is arranged between outer side section 310 and inboard portion 320 to separate them
And insulate, eliminate the above-mentioned risk for leading to electric shock.
As described above, insulated part 330 is set to exterior portion 310 and inboard portion 320 by cold charge hot cover process
Between.The principle of " cold charge hot jacket " is cooling inboard portion 320, heats exterior portion 310, makes its shrink/expanded to preset
Cooperation value is assembled, to be restored to after room temperature, by between exterior portion 310, inboard portion 320 and insulated part 330 from
Right interference fit reaches required bond strength.
The forming method of seal 30 for electrical engineering and electric apparatus 1 described in detail below according to the disclosure.
Firstly, preparing the outside of seal 30 according to the specific design requirement (including shape, size etc.) of electrical engineering and electric apparatus 1
Part 310, inboard portion 320 and insulated part 330.It is made of metal material exterior portion 310, the inside portion of seal 30
Divide 320, and is made of insulating material the insulated part of seal 30.As it can be seen that being different from conventional injection molding forming method, in this public affairs
In the forming method for the seal 30 opened, insulated part 330 can be separately formed, thus insulated part easy to manufacture 330 and
Its presentation quality is easier control.
Forming method according to the disclosure includes cooling step.In cooling step, inboard portion 320 is cooled to first
Temperature T1, so that the size of inboard portion 320 meets or is less than scheduled ideal design dimensions.As long as inboard portion can be made
320 size meets or is less than scheduled ideal design dimensions, then the first temperature T1There is no any restrictions, but preferably by the first temperature
Spend T1It is set in -30~50 DEG C or so of range.In addition, as the type of cooling, it can be using the coolant liquid with inert nature
It is cooled down, such as liquefied ammonia etc..
Forming method according to the disclosure further includes the first installation step: will be cooled to the first temperature T1Inboard portion
320 are embedded in insulated part 330 in a co-planar fashion.Due to being cooled to the first temperature T1Inboard portion 320 size it is (smaller
In the internal diameter of insulated part 330) meet or is less than scheduled ideal design dimensions, so the first temperature can will be cooled to
T1Inboard portion 320 be embedded in the way of peg-in-hole assembly in insulated part 330, and be aligned their upper and lower surface.
It can also be included the following steps: after the first installation step according to the forming method of the disclosure, wait inside portion
320 are divided to be restored to room temperature with the laminate that insulated part 330 is assembled.At this point, inboard portion 320 and insulated part 330 are realized
Interference fit, to will not disengage mutually each other.
Further include heating stepses according to the forming method of the disclosure: exterior portion 310 is heated to second temperature T2, so that
The size of exterior portion 310 meets or is greater than scheduled ideal design dimensions.As long as the size of exterior portion 310 can be made to meet
Or it is greater than scheduled ideal design dimensions, then second temperature T2There is no any restrictions, but in view of in aftermentioned second assembly step
Outside the laminate that exterior portion 310 can be nested in inboard portion 320 in rapid and insulated part 330 is assembled, and constitute insulation division
Points 330 material (such as PC plastic or similar resin material) 80 DEG C or more at a temperature of will deform or deteriorate, because
This is preferably by second temperature T2It is set in 50~80 DEG C or so of range, that is, by second temperature T2Increasing degree be limited to less than
Certain temperature value.In addition, in the heating stepses, as heating method, exterior portion 310 can be placed in laser, ultraviolet
(UV) under radiation, microwave radiation or other electromagnetic radiation, it can also be placed on hot water radiation wire layer, be carried out in high temperature steam environments
Direct heat transfer can also apply electric current by outside side section 310 to be heated.
Forming method according to the disclosure further includes the second installation step: would be heated to second temperature T2Exterior portion
310 are nested in a co-planar fashion outside the laminate that inboard portion 320 is assembled with insulated part 330.Due to being heated to second
Temperature T2Exterior portion 310 size (slightly larger than the outer diameter of insulated part 330) meet or set greater than scheduled ideal
Size is counted, so second temperature T can be would be heated to2Exterior portion 32 be nested in inboard portion 320 and insulated part 330 and fill
Outside laminate made of matching, and it is aligned their upper and lower surface.
It can be seen that after the completion of the second installation step, exterior portion 310, inboard portion 320 and insulated part 330
It is combined together and being formed as one structure, ultimately forms integrated seal 30.
Further include following steps according to the forming method of the disclosure: after the second installation step, waiting inboard portion 320
The laminate and exterior portion 310 being assembled with insulated part 330 are restored to room temperature.At this point, exterior portion 310 and inboard portion
320 realize interference fit with the laminate that insulated part 330 is assembled, to will not disengage mutually each other.
It should be noted that since the insulating materials for constituting insulated part 330 is typically easy to that moderate finite deformation occurs because heated,
Therefore in the forming method of the disclosure, the sequence of above-mentioned cooling step and above-mentioned heating stepses can not be exchanged.
In addition, constituting color used by the injected plastics material of insulated part 330 can be selected according to product appearance, with
Just weaken or expand the difference between insulated part 330 and exterior portion 310 and inboard portion 320.
In general, only being depended on by plastics itself to the adhesion strength of metal after injection molding in conventional injection molding forming method
In smooth metal surface, the bond strength between component is little.And intensity is weaker on Impact direction during installation, and by
Deformation caused by cooling meat is more embodied in weak position, and entirety is inconsistent to appear in surface, to influence surface matter
Amount.In accordance with an embodiment of the present disclosure, inboard portion 320, insulated part 330 and exterior portion are made by cold charge hot cover process
Interference fit is realized between 310, greatly improves original intensity and surface quality.In addition, being different from conventional injection-moulded square
Method, insulated part 330 can be separately formed, so that insulated part easy to manufacture 330 and the easy control of its presentation quality, improve
Production efficiency.
[variation]
The variation of the forming method of the disclosure is described in detail below.Hereinafter, being said centered on difference
It is bright.
Firstly, preparing the outside of seal 30 according to the specific design requirement (including shape, size etc.) of electrical engineering and electric apparatus 1
Part 310, inboard portion 320 and insulated part 330.It is made of metal material exterior portion 310, the inside portion of seal 30
Divide 320, and is made of insulating material the insulated part of seal 30.Differently with above-mentioned forming method, make to constitute outside portion
Divide the thermal expansion coefficient of metal material of the thermal expansion coefficient of 310 metal material than constituting inboard portion 320 big.For example, with
Aluminium alloy forms exterior portion 310, forms inboard portion 320 with copper.
Cooling step and the first installation step are identical as above embodiment, and repeated description is omitted here.
The variation of the forming method of the disclosure further includes following steps: after the first installation step, being not to wait for inside
The laminate that part 320 and insulated part 330 are assembled is restored to room temperature and is directly entered next heating stepses.
The variation of the forming method of the disclosure further includes heating stepses: while to inboard portion 320 and insulated part 330
The laminate and exterior portion 310 being assembled are heated, until exterior portion 310 reaches second temperature T2.It is outer due to constituting
The thermal expansion coefficient of metal material of the thermal expansion coefficient of the metal material of side section 310 than constituting inboard portion 320 is big, because
This, when the laminate and exterior portion 310 being assembled at the same time to inboard portion 320 with insulated part 330 heat, big portion
Energy is divided to be absorbed by exterior portion 310 rather than absorbed by inboard portion 320, the speed of deformation of exterior portion 310 compares inside portion
Divide 320 speed of deformation big.
As heating method, exterior portion 310 can be placed in laser, ultraviolet (UV) radiation, microwave radiation or other
It under electromagnetic radiation, can also be placed on hot water radiation wire layer, carry out direct heat transfer in high temperature steam environments, it can also be by outside
Side section 310 applies electric current to be heated.
Further, since the metal material for constituting exterior portion 310 is different from the metal material of inboard portion 320 is constituted, because
This in the heating stepses of the variation of the forming method of the disclosure, can also the wavelength of correspondingly selective radiation heated
So that exterior portion 310 absorbs most of radiation energy.In this manner, at the same time to inboard portion 320 and insulated part 330
When the laminate and exterior portion 310 being assembled are heated, most energy is absorbed by exterior portion 310, so that outside
Part 310 is sufficiently heated to reach ideal deformation, while bulk temperature can also be inhibited to increase.
Variation according to the forming method of the disclosure further includes the second installation step: would be heated to second temperature T2It is outer
Outside the laminate that side section 310 is nested in inboard portion 320 in a co-planar fashion and insulated part 330 is assembled.Although adding
The laminate and exterior portion 310 being assembled with insulated part 330 to inboard portion 320 simultaneously in hot step heat, but
Since the speed of deformation of exterior portion 310 is bigger than the speed of deformation of inboard portion 320, it is heated to second temperature T2Outside
The size of part 310 can be slightly larger than the outer diameter of insulated part 330, so second temperature T can be would be heated to2Outside portion
Divide 32 to be nested in outside the laminate that inboard portion 320 is assembled with insulated part 330, and is aligned their upper and lower surface.
It can be seen that after the completion of the second installation step, exterior portion 310, inboard portion 320 and insulated part 330
It is combined together and being formed as one structure, ultimately forms integrated seal 30.
Variation according to the forming method of the disclosure further includes following steps: after the second installation step, in waiting
The laminate and exterior portion 310 that side section 320 and insulated part 330 are assembled are restored to room temperature.At this point, exterior portion 310
It realizes and is interference fitted with the laminate that inboard portion 320 and insulated part 330 are assembled, to will not disengage mutually each other.
Similarly, in the variation of the forming method of the disclosure, the sequence of above-mentioned cooling step and above-mentioned heating stepses
It can not exchange.
In addition, constituting color used by the injected plastics material of insulated part 330 can be selected according to product appearance, with
Just weaken or expand the difference between insulated part 330 and exterior portion 310 and inboard portion 320.
According to the variation of the forming method of the disclosure, similarly make inboard portion 320, insulated part 330 and outside
Interference fit is realized between part 310, greatly improves original intensity and surface quality.In addition, being different from conventional be molded into
Type method, insulated part 330 can be separately formed, so that insulated part easy to manufacture 330 and the easy control of its presentation quality, mention
High production efficiency.In addition to this, inside portion is constituted by making to constitute the thermal expansion coefficient ratio of the metal material of exterior portion 310
The thermal expansion coefficient of points 320 metal material is big, so as to assembling at the same time to inboard portion 320 and insulated part 330
At laminate and exterior portion 310 heated when, the speed of deformation of the speed of deformation of exterior portion 310 than inboard portion 320
Greatly.So, most of energy is absorbed by exterior portion 310 rather than is absorbed by inboard portion 320.That is, can be by outside
Part 310 is heated to higher temperature and causes significant deformation reassemble with the laminate that obtains after the first installation step
Seal 30 is formed, while can limit the increase of 30 bulk temperature of seal again.Also, in the molding side of the disclosure
In the variation of method, after the first installation step, it can be not to wait for what inboard portion 320 was assembled with insulated part 330
Laminate is restored to room temperature and is directly entered next heating stepses, therefore, while realizing the assembly of seal 30, with
The first embodiment of the disclosure is compared, additionally it is possible to effectively reduce process, the working hour of forming method.
More than, although it have been described that the example embodiment of the disclosure, it will be understood by those skilled in the art that
In the case where being without materially departing from spirit and scope of the present disclosure a variety of variations can be carried out to the example embodiment of the disclosure
And change.Therefore, all changes and change are all contained in the protection scope of the disclosure defined by claim.The disclosure by
Appended claims limit, and the equivalent of these claims is also included.
Claims (24)
1. a kind of forming method of the seal for electrical engineering and electric apparatus, the seal include exterior portion, inboard portion
And insulated part, the forming method include:
The exterior portion and the inboard portion is respectively prepared by metal material in preparation step, is made of insulating material described
Insulated part；
The inboard portion is cooled to the first temperature by cooling step；
The inboard portion for being cooled to the first temperature is embedded in the insulated part by the first installation step in a co-planar fashion
It is interior；
The exterior portion is heated to second temperature by heating stepses；And
Second installation step, the exterior portion that would be heated to second temperature are nested in the inboard portion in a co-planar fashion
Outside the laminate being assembled with the insulated part.
2. the forming method of the seal according to claim 1 for electrical engineering and electric apparatus, further include: described first
After installation step, the laminate for waiting the inboard portion and the insulated part to be assembled is restored to room temperature so that in described
Side section and the insulated part, which are realized, to be interference fitted, subsequently into the heating stepses.
3. the forming method of the seal according to claim 1 for electrical engineering and electric apparatus, wherein in the heating stepses
In, while the laminate and the exterior portion that are assembled to the inboard portion with the insulated part heat, until
The exterior portion reaches second temperature.
4. the forming method of the seal according to claim 3 for electrical engineering and electric apparatus, further include: described first
After installation step, be not to wait for the inboard portion and laminate that the insulated part is assembled is restored to room temperature and directly into
Enter the heating stepses.
5. the forming method of the seal according to claim 4 for electrical engineering and electric apparatus, wherein make to constitute the outside
The thermal expansion coefficient of metal material of the thermal expansion coefficient of partial metal material than constituting the inboard portion is big.
6. the forming method of the seal according to claim 5 for electrical engineering and electric apparatus, wherein institute is made by aluminium alloy
Exterior portion is stated, the inboard portion is made of copper.
7. the forming method described according to claim 1~any one of 6 for the seal of electrical engineering and electric apparatus, wherein by moulding
The insulated part is made in material.
8. the forming method described according to claim 1~any one of 6 for the seal of electrical engineering and electric apparatus, is also wrapped
Include: after the second installation step, the laminate and exterior portion for waiting inboard portion and insulated part to be assembled are restored to often
Temperature.
9. the forming method described according to claim 1~any one of 6 for the seal of electrical engineering and electric apparatus, wherein
In the heating stepses, Xiang Suoshu exterior portion applies electric current to be heated.
10. the forming method described according to claim 1~any one of 6 for the seal of electrical engineering and electric apparatus, wherein
In the heating stepses, heated by electromagnetic radiation.
11. the forming method described according to claim 1~any one of 6 for the seal of electrical engineering and electric apparatus, wherein
In the heating stepses, the wavelength of selective radiation is so that the exterior portion absorbs most of energy.
12. the forming method described according to claim 1~any one of 6 for the seal of electrical engineering and electric apparatus, wherein
In the heating stepses, heated by direct heat transfer.
13. the forming method described according to claim 1~any one of 6 for the seal of electrical engineering and electric apparatus, wherein
In the cooling step, cooled down using the coolant liquid with inert nature.
14. a kind of switch comprising:
Operation module, the operation module are used to start or control the operation of the switch；
Electrical module, the electrical module are electrically connected with the operation module；And
Seal, the seal support the operation module and surround the electrical module, the seal packet
It includes:
Exterior portion, the exterior portion are made of metal material；
Inboard portion, the inboard portion are made of metal material；And
Insulated part, the insulated part are made of insulating material, and are arranged and are divided it in the exterior portion and the inside portion
Between, the exterior portion is separated and is insulated with the inboard portion,
Wherein by forming method described in claim 1, the inboard portion is embedded in the insulated part, the outside portion
Divide and is nested in outside the laminate that the inboard portion is assembled with the insulated part.
15. switch according to claim 14, wherein constituting the thermal expansion coefficient ratio of the metal material of the exterior portion
The thermal expansion coefficient for constituting the metal material of the inboard portion is big.
16. switch according to claim 14 or 15, wherein the exterior portion is made of aluminium alloy, the inboard portion
It is made of copper.
17. switch according to any one of claims 14-16, wherein the insulated part is made of plastics.
18. a kind of seal for electrical engineering and electric apparatus comprising:
Exterior portion, the exterior portion are made of metal material；
Inboard portion, the inboard portion are made of metal material；And
Insulated part, the insulated part are made of insulating material, and are arranged and are divided it in the exterior portion and the inside portion
Between, the exterior portion is separated and is insulated with the inboard portion,
Wherein by forming method described in claim 1, the inboard portion is embedded in the insulated part, the outside portion
Divide and is nested in outside the laminate that the inboard portion is assembled with the insulated part.
19. seal according to claim 18, wherein constituting the thermal expansion system of the metal material of the exterior portion
The thermal expansion coefficient of metal material of the number than constituting the inboard portion is big.
20. seal described in 8 or 19 according to claim 1, wherein the exterior portion is made of aluminium alloy, the inside
Part is made of copper.
21. seal described in any one of 8~20 according to claim 1, wherein the insulated part is made of plastics.
22. a kind of electrical engineering and electric apparatus comprising seal described in any one of 8~21 according to claim 1.
23. electrical engineering and electric apparatus according to claim 22 further includes electrical module, wherein the inboard portion is around described
Electrical module, and the exterior portion limits the boundary of the electrical engineering and electric apparatus.
24. the electrical engineering and electric apparatus according to claim 22 or 23 further includes the operation module supported by the seal
And/or decoration module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910101562.8A CN109755053B (en) | 2019-02-01 | 2019-02-01 | Switch, insulating device and forming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910101562.8A CN109755053B (en) | 2019-02-01 | 2019-02-01 | Switch, insulating device and forming method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109755053A true CN109755053A (en) | 2019-05-14 |
| CN109755053B CN109755053B (en) | 2020-05-12 |
Family
ID=66406465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910101562.8A Active CN109755053B (en) | 2019-02-01 | 2019-02-01 | Switch, insulating device and forming method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109755053B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1193175A (en) * | 1997-03-07 | 1998-09-16 | 松下电器产业株式会社 | Button switch mfg. method and mfg. apparatus for applicating same thereof |
| JP2002231088A (en) * | 2001-12-25 | 2002-08-16 | Hokuriku Electric Ind Co Ltd | Push switch and its manufacturing method |
| CN1989670A (en) * | 2004-05-25 | 2007-06-27 | 莱维顿制造有限公司 | Receptacle with shaped surface |
-
2019
- 2019-02-01 CN CN201910101562.8A patent/CN109755053B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1193175A (en) * | 1997-03-07 | 1998-09-16 | 松下电器产业株式会社 | Button switch mfg. method and mfg. apparatus for applicating same thereof |
| JP2002231088A (en) * | 2001-12-25 | 2002-08-16 | Hokuriku Electric Ind Co Ltd | Push switch and its manufacturing method |
| CN1989670A (en) * | 2004-05-25 | 2007-06-27 | 莱维顿制造有限公司 | Receptacle with shaped surface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109755053B (en) | 2020-05-12 |
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