CN103367034B - Thermally sensitive electric switch and the method being used for manufacturing described electric switch - Google Patents
Thermally sensitive electric switch and the method being used for manufacturing described electric switch Download PDFInfo
- Publication number
- CN103367034B CN103367034B CN201210216967.4A CN201210216967A CN103367034B CN 103367034 B CN103367034 B CN 103367034B CN 201210216967 A CN201210216967 A CN 201210216967A CN 103367034 B CN103367034 B CN 103367034B
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- section
- spring element
- lower limb
- switch
- contact
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H37/5427—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting encapsulated in sealed miniaturised housing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H2037/549—Details of movement transmission between bimetallic snap element and contact
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Push-Button Switches (AREA)
- Thermally Actuated Switches (AREA)
Abstract
The present invention relates to a kind of thermally sensitive electric switch, including: the springing element made with thermo bimetal, preferred springing dish；Spring element, as movable contact section；Fixing contact section；Press-on pins, as the effect attachment means between springing element and spring element；Pin guide；Housing；And lid.In order to reduce the quantity of the part of described electric switch, according to the present invention, being provided with the switch bridge unit being fixed in described housing, described switch bridge unit is made up of switch bridge and working of plastics (16)；Described switch bridge is made up of first (8) and second (9), wherein, described first forms the first terminal section (10) and fixing contacts section (12) with described, described second forms the second terminal section (11) and jointing (13), and described spring element is fixed on described jointing；Described first and described second is embedded in described working of plastics, is connected to each other by described working of plastics and position is fixed toward each other.
Description
Technical field
The present invention relates to a kind of thermally sensitive electric switch, including: the springing element made with thermo bimetal, preferably bullet
Moving plate；Spring element, as movable contact section；Fixing contact section, described movable contact section is in order to make to connect
Touch Guan Bi and can be towards described fixing contact section movement；Press-on pins, is connected as the effect between springing element and spring element
Device；Pin guide；Housing；And lid.
Moreover, it relates to a kind of method for manufacturing the thermally sensitive electric switch according to the present invention.
Background technology
Thermally sensitive electric switch for closing in other words and/or interruptive current loop according to temperature transition, such as, exists
As cutoff device in calorifier, as overload protection arrangement or be generally used for boiler.Therefore, title " thermoregulator " is right
Also it is conventional in this switch.
The structure of described thermoregulator include the springing element made with thermo bimetal as thermally sensitive element,
Described springing element is normally constructed to springing dish.Springing dish may be configured to circle or has other shape at this, such as square
Shape, rectangle etc..
Springing dish has arching, such as, in the form of flat ball collar, described arching is jumped when low and high springing temperature
The formula that jumps changes.Here, spring element motion, described spring element in an arching state of springing dish with fixing contact element
Contact and do not have with fixing contact element in other arching state and contact.As the work between springing dish and spring element
By attachment means, using the press-on pins being directed in pin guide, described press-on pins is preferably configured as electrically isolated.In order to
Beginning (" simulation the ") stroke slowly turning the springing dish being bound to another arching state from an arching state is avoided to pass
Passing spring element, press-on pins contacts with springing dish and spring element time different in an arching state of springing dish.When turning
When the springing dish of bullet carries out the most unexpected (" numeral ") stroke, press-on pins just connects with springing dish and spring element simultaneously
Touch.Thus avoid the formation of spark.
Being had following structure by thermoregulator known in the art, wherein, spring element makes and fixes contact element
Substantially contact.First, in order to realize contacting satisfactorily, by a contact rivet setting on spring element.Under connecing
By means of connection rivet by the housing riveting of spring element with connector terminal in other words and thermoregulator during Laiing, its
In, housing is generally made up of plastics.Another contact rivet is assemblied on fixing contact element.Then, also by connecting riveting
Follow closely another terminal and the fixing contact element riveting in housing.
It follows that between pin guide puts and determines the reclining of the pressure spot of spring element and springing dish away from
From.Now, installation has the press-on pins of corresponding length.As last manufacturing step, described dish is installed and will cover and housing
Preferably connected by crimping.
As the shortcoming of described structure, it should first be mentioned that be that the quantity of part is big.It addition, the design of part is little
It is applicable to automated production.Additionally, the pre-tensioning of spring element contact force in other words can not correct again and with multiple components
Tolerance be correlated with.It is associated it should be mentioned that terminal and spring element and the riveting by plastic casing of the fixing contact element with this
Connecing, described riveting loosens the most over time.This causes conductivity difference and transfer characteristic to produce partially with initial adjustment
Difference.
Summary of the invention
It is an object of the invention to, it is provided that a kind of thermoregulator is in other words for manufacturing the side of described thermoregulator
Method, wherein, disadvantages mentioned above is avoided.The especially automatization's probability in this part to be realized reduces and produces changes
Kind.Additionally, to realize not only existing between the terminal of thermally sensitive electric switch and fixing contact element spring element in other words
Mechanical aspects and connect to lasting stability in terms of electricity.
Thermally sensitive electric switch include the springing element made with thermo bimetal, spring element, as springing element
And the press-on pins of effect attachment means, pin guide, housing and the lid between spring element, according to the present invention, described right
The minimizing of the part of temperature sensitive electric switch is by using switch bridge unit to realize, and described switch bridge unit only has itself
Little part.Specifically, switch bridge unit is made up of switch bridge and working of plastics, described switch bridge itself only by first and
Second composition.First of switch bridge and second is embedded in described working of plastics, the most mechanically connected to each other, mutually electricity every
Absolutely, and toward each other position is fixed.Switch bridge unit can be able to given according to the length of desired switch displacement and press-on pins in advance
Fix in the housing on fixed position.
First includes the first terminal section and fixing contact section.Second has the bonding pad for spring element
Section and the second terminal section.In other words, the first terminal section contacts section and the second terminal section and bonding pad with fixing
Section is respectively configured to one.
Spring element be movable contact section and in order to make contact Guan Bi and can be towards fixing contact section movement.?
This, press-on pins is used as the effect attachment means between springing dish and spring element.Therefore, thermally sensitive electric switch includes:
The springing element made with thermo bimetal, preferred springing dish；Spring element, as movable contact section；Fixing contact area
Section, movable contact section in order to make contact Guan Bi and can be towards described fixing contact section movement；Press-on pins, as springing unit
Effect attachment means between part and spring element；Pin guide；Housing；And lid, thermally sensitive establish by cable described
The Central Shanxi Plain, it is proposed, according to the invention, that be provided with fixing switch bridge unit in the housing, described switch bridge unit is by switch bridge and moulds
Materials and parts form, and switch bridge is formed by first and second, and wherein, first forms the first terminal section and fixing contact area
Section, second forms the second terminal section and jointing, and spring element is fixed on described jointing, first and second
Part is embedded in working of plastics, is connected to each other by working of plastics and position is fixed toward each other.
In order to make terminal section can be used as connector, described terminal section stretches out from working of plastics.Fixing contact section also from
Working of plastics stretches out, in order to can be contacted by spring element.Correspondingly, in a preferred embodiment of the switch according to the present invention
Middle proposition, at least the first terminal section and the second terminal section and fixing contact section stretch out from working of plastics.
As for the materials'use metal of first and second of switch bridge.On the one hand, described metal can conduct electricity,
On the other hand, can punching first and second on bonding jumper in one step, this simplify production.Correspondingly, at root
Proposing according in a preferred embodiment of the switch of the present invention, first of switch bridge and second relates separately to use metal system
The pressing product become.
After punching, first first have the most flat and the most L-shaped shape.L
One section of shape is formed by the first terminal section and the first central section, and another section of L shape is by fixing contact area
Section is formed.Therefore fixing contact section forms the end regions of first of switch bridge.
In order to use in the switch according to the invention, fixing contact section is bent up from the plane of the first central section
Bent and deviate from it and again bend on end that the first central section is pointed to.Thus, the fixing contact section of bending is seen itself
Form L-shaped.Fixing contact section and the first central section are collectively forming and have the first lower limb, middle part and the U-shaped of the second lower limb.?
This, the first central section forms the first lower limb.Fixing contact section forms the middle part and the second lower limb being connected with the first lower limb, described
Second lower limb the most i.e. extends in parallel relative to the first lower limb in addition at most 5 ° deviations.Preferably first lower limb and middle part and in
Section and the second lower limb accompany a right angle respectively.Correspondingly, carry in a preferred embodiment of the switch according to the present invention
Going out, fixing contact section forms the end regions of first of switch bridge, and wherein, first by the first terminal section, in first
Portion's section and the fixing section composition that contact, section is L-shaped bends out from the plane of the first central section in fixing contact, fixes
Contact section and the first central section are formed has the first lower limb, middle part and the U-shaped of the second lower limb, wherein, the first central section shape
Becoming the first lower limb, fixing contact section forms second lower limb and the middle part substantially parallel relative to the first lower limb.
Thus, after fixing contact element bends, obtain the character shape of first, described character shape based on: fixing
The bending of contact element is carried out around sweep, is in the feelings in the plane identical with the first central section for the first terminal section
Condition, i.e. before the first terminal section may bend, described sweep is relative to the longitudinal axis parallel ground of the first terminal section
Extend.Last described situation first directly obtains after punching process, and there, fixing contact element section is also at and the
In the plane that one central section is identical.Correspondingly, propose in a preferred embodiment of the switch according to the present invention, middle part
Section bends around the first sweep relative to the first lower limb, and described first sweep is relative to the longitudinal axis parallel of the first terminal section
Ground extends, and the second lower limb bends around the second sweep relative to middle part, and described second sweep is parallel relative to the first sweep
Ground extends.
Fixing contact section is contacted by spring element and preferably carries out on the second lower limb.At the switch according to the present invention one
In individual particularly preferred embodiment, on the jointing of spring element be fixed on again switch bridge with an end second,
Thus it is conductively connected with the second terminal section.
In order to make spring element contact section particularly securely contact, a spy of the switch according to the present invention with fixing
Not preferably form of implementation proposes, on spring element and on fixing contact section, be mounted with a contact-type exterior feature respectively
Part, wherein, said two contact-type profile contacts with each other to preferred flat in contact position.In other words, at contact position
In, spring element contacts section conductively connect to each other with fixing.
In a particularly preferred form of implementation of the switch according to the present invention, the jointing of second of switch bridge
It is in the plane that first central section of with switch bridge first is identical.Here, jointing is arranged on fixing contact area
The middle part opposite in other words, region being connected with the first central section of section.Because fixing contact section is contacted by spring element
Second lower limb is carried out and the second lower limb is not located in the plane identical with the first central section in any case, so bullet
Spring element has the bending of U-shaped.Institute in other words, carries in a particularly preferred form of implementation of the switch according to the present invention
Going out, spring element takes the shape of the letter U bending.Thus, on the one hand ensureing, the free end of spring element is in and is substantially opposite the second lower limb
Plane parallel and plane than the first central section is relative in the described second spaced apart plane in the obvious little ground of lower limb, fix
The contact of contact section is carried out by described free end.On the other hand, the bending of U-shaped allows press-on pins approximately perpendicularly to act on
On spring element, in other words, the longitudinal axis of press-on pins is relative to the face base with press-on pins Mechanical Contact of spring element
In basis vertically.This ensures that the best effect between springing dish and spring element is connected, and thus ensures conversion reliably.
Correspondingly, proposing in a particularly preferred form of implementation of the switch according to the present invention, spring element has
Free end, is used for and fixing contact element contacts.In order to better contact with, free end can be mounted with contact-type wide
Part.This be not to take the shape of the letter U bending for spring element but such as obliquely away from jointing stretch to fixing contact section or
Say that the situation of the second lower limb is the most meaningful.
Certainly, also contemplate for as an alternative solution, jointing from the plane of the first central section towards the side of the second lower limb
To stretching out.In the case, spring element can be simply configured to strip and flat, then will be in relative to the first central section
The parallel plane of plane in, with free end close to the second lower limb.
For this still it is noted that jointing stretch out the bending especially by jointing realize with
The mode being similar to the fixing above-mentioned bending contacting section.In other words, itself apparently, the jointing of respective curved will have
The jointing of L-shaped respective curved in other words at least one region with second of switch bridge forms U-shaped.
In a particularly preferred form of implementation of the switch according to the present invention, spring element is in contact position in principle
In putting, because this ensures particularly stable conductivity.When springing dish turns bullet, press-on pins is pressed on spring element, and then, electricity connects
Touch and interrupt.In the case, it is proposed, according to the invention, that contact-type profile is placed on the side towards the first lower limb sensing of the second lower limb.
Correspondingly, the free end of spring element is arranged between the first lower limb and the second lower limb.The bending of U-shaped realizes at this being placed in spring
Contact-type profile on the free end of element is pressed in the contact-type profile of fixing contact section particularly well.
Certainly, it is possible to propose such form of implementation of the switch according to the present invention: in this form of implementation, spring element
Be not in principle in contact position, in order to may in the case of fixing contact section and spring element be simpler to design must
The bending operation wanted.In the case, when springing dish turns bullet, press-on pins is pressed on spring element and makes electrical contact close.
If it is considered to contact is carried out on the second lower limb, then the second lower limb is arranged between the first lower limb and the free end of spring element.Accordingly
Ground, proposes in a form of implementation of the switch according to the present invention, and the free end of spring element has simultaneously towards first
Lower limb and the side of the second lower limb.For the purpose better contacted with, the described side of the free end of spring element disposes one and connects
Touch type profile, and similarly at the second lower limb towards disposing a contact-type profile on the side of the free end of spring element,
Yes for this suitably.
Thus obtaining having the shape of second of fixing spring element, described shape fixing contacts with have bending
The character shape of first of section is similar to.The shape of second with fixing spring element connects with having the fixing of bending
The character shape mirror image ground of touch section first exists.Here, depending on form of implementation, the free end of spring element and
Normal distance between one central section is less than or greater than the normal distance between the second lower limb and the first Central element, wherein, method
Measure relative to the first central section normal direction to distance.Therefore, in a particularly preferred reality of the switch according to the present invention
Execute in form and propose, for U-shaped bend spring element in the case of, the opening of the U-shaped of spring element point to by the first lower limb,
The opening of the U-shaped that middle part and the second lower limb are formed.
When spring element is not to take the shape of the letter U bending, can propose similarly with former case, jointing is formed and opens
The end regions of second of Guan Qiao, wherein, second is made up of the second terminal section, the second central section and jointing.U
Shape is formed by spring element, jointing and the second central section at this.Correspondingly, at one of the switch according to the present invention
Proposing in particularly preferred form of implementation, jointing forms the end regions of second of switch bridge, and wherein, second by the
Two-terminal section, the second central section and jointing composition, the second central section, jointing and spring element formation U-shaped,
The opening of described U-shaped points to the opening of the U-shaped formed by the first lower limb, middle part and the second lower limb.It should be noted that for this
In this form of implementation, spring element can the most suitably bend in principle, without absolute structure Cheng Ping's.
In another particularly preferred form of implementation of the switch according to the present invention, with the similarity of the shape of first
Being supplemented, its mode is to propose, and the second terminal section is arranged abreast relative to the first terminal section.Here, terminal section
Arrange the most alignedly.
Corresponding to above-mentioned form of implementation, according to the present invention, carry in the method for manufacturing thermally sensitive electric switch
Going out, in order to realize the optimization structure that the part of switch reduces, described method comprises the steps:
-by means of punching module on bonding jumper first and second of punching switch bridge, wherein, first forms the
One end sub-segments and fixing contact section, second forms the second terminal section and the jointing for spring element；
-spring element is fixed on jointing with an end；
-by first and second with parts of plastics ground injection encapsulated；
-fixing contact section is bent in the position that the first central section with first takes the shape of the letter U, wherein, in first
Portion's section forms the first lower limb, fixing contact section formed relative to
The second lower limb that first lower limb is substantially parallel and middle part.
On bonding jumper, punching refers to, first and second is still connected with bonding jumper rather than complete after punching
Separate with described bonding jumper.By being retained in first and second on bonding jumper, it is the most fixed to realize
Position and to other tool model and in other tool model without any problems continue conveying.Therefore, for manufacturing temperature
The instrument of the electric switch that degree is sensitive is made up of the modules formula functional device arranged that follows one another, wherein, and described modular function
The quantity of block and order can be predetermined.
In order to perform the method according to the invention, the most following structure is possible: for punching first on bonding jumper
Part and the punching module of second；For fixing the assemble welding module of spring element；Being used for contact-type profile additionally is solid
It is scheduled on spring element and the fixing assemble welding module contacting on section；Bending module for the jogged terminal end wing；For with moulding
Expect the pressure injection module of partly injection encapsulated first and second；Bending module for flexural spring element；Use additionally
Bending module in bending fixing contact section；And it is eventually used for going out the punching mould of first and second from bonding jumper punching
Block.
It should be noted that for this order of certain job step module in other words can change.Such as the terminal wing is curved
Song also can be carried out in the moment after a while.The most advantageously, punching is only just carried out in the moment after a while, in order to by switch bridge unit
First on bonding jumper, other machine/instrument tool model in other words it is transported to for processing further.
Because fixing contact section and the first terminal section are configured to integral with one another by first of switch bridge, so
Ensure not only mechanical aspects but also most probable in terms of electricity is stably connected with.Cancel at this and use the rivet being easily disturbed.
In a particularly preferred form of implementation of the method according to the invention, produce out by means of punching module simultaneously
First of Guan Qiao and second.Therefore save on time and one or more production stage when for making first and second
When the purpose that part is located opposite to each other considers job step that may be necessary.
Additionally, hole and/or contact pin can be formed when punching on first and second of switch bridge.Described hole and/or
Contact pin ensures and is most preferably maintained in the plastics of injection encapsulated first and second.By injection encapsulated, first and
Second is highly precisely located opposite to each other and fixes with position.
In order between spring element and jointing not only in mechanical aspects and also in terms of electricity, realize lasting stability
Link, proposes in a particularly preferred form of implementation of the method according to the invention, engages by spot welding or by upsetting pressure
Process carries out spring element fixing on jointing.Thus can eliminate the need for will also become the Yi Shougan of other part for this
The rivet disturbed.
In order to improve electrical contact, it is provided with contact-type profile.Correspondingly, the most excellent at one of the method according to the invention
The form of implementation of choosing proposes, respectively contact-type profile was fixed on before partly injection encapsulated the free end of spring element
In portion and on fixing contact section.
Similarly, propose in a particularly preferred form of implementation of the method according to the invention, pass through welding process
Such as spot welding or laser welding carry out contact-type profile spring element and/or fixing on fixing contact section.Thus exist
This rivet being easily disturbed that also can eliminate the need for will also become other part for this, although being not precluded from principle using riveting
Nail.
For the connection possibility being guaranteed on terminal section and in order to not damage spring element at fixing contact section
On contact and the transfer characteristic of switch is not adversely affected, the most excellent of the method according to the invention
The form of implementation of choosing proposes, the most not injection encapsulated first when first and second of partly injection encapsulated switch bridge
Terminal section and the second terminal section and fixing contact section.In other words, the first terminal section and the second terminal section with
And fixing contact section stretches out from the working of plastics produced when injection encapsulated.
In order to protect the connection of spring element and jointing, in a particularly preferred reality of the method according to the invention
Execute in form and propose, the connection end of also injection encapsulated spring element when partly injection encapsulated.
Ensure the hole most preferably kept in the plastic additionally, can be provided with on the connection end of spring element and/or connect
Sheet.In any case, end is connected relative to first of switch bridge with the by injection encapsulated also Optimal Spring element
The location of two, and the connection end of spring element in addition to being fixed on jointing the most additionally position fix.
In order to realize a guarantee spring element of switch and the fixing particularly stable conductivity contacted between section
Form of implementation, fixing contact section so bends so that spring element contacts in principle with the described fixing section that contacts.Here it is
Saying, spring element is in contact position the most in principle.When springing dish turns bullet, press-on pins is pressed on spring element, then,
Electrical contact is interrupted.
Correspondingly, before fixing contact section bends, spring element bends to one towards the direction of fixing contact section
Shape, preferably bends to U-shaped.Therefore, propose in a preferred form of implementation of the method according to the invention, spring element
Direction towards fixing contact section bends to the shape of preferred U-shaped, spring element bending fixing contact section bending it
Before carry out.
Correspondingly, fixing contact section then must so bend so that the free end of spring element is arranged on first
Between lower limb and the second lower limb and preferably contact-type profile planar each other ground contacts.Therefore, at one of the method according to the invention
Particularly preferred form of implementation proposes, makes when bending fixing contact section the free end of spring element at the first lower limb and the
Arriving in contact position between two lower limbs, in described contact position, contact-type profile contacts with each other.Because not only fixing contact area
Section and spring element arrive in contact position by means of bending operation, so, contact force can on purpose be affected and
Be matched with current requirement, spring element with described contact force be pressed on fixing contact section in other words two contact-type profile with institute
State contact force mutually to press.
As it has been described above, have an advantage in that therefore first and second be still connected with bonding jumper and in bonding jumper upper punch system
Can without any problems and be rapidly conveyed into other tool model, and it as to be mutually facing and not change.In other words, take
Disappear for making first and second job step reorientated toward each other, thus, side in next tool model
The quantity of method step minimizes.
Therefore, propose in another preferred form of implementation of the method according to the invention, being fixed on of spring element
Assemble welding module is carried out on bonding jumper.
Similarly, propose in another preferred form of implementation of the method according to the invention, consolidating of contact-type profile
It is scheduled in assemble welding module and carries out on bonding jumper.
Correspondingly, also, it has been proposed that use parts of plastics in a particularly preferred form of implementation of the method according to the invention
Ground injection encapsulated is carried out on bonding jumper in pressure injection module.
As described, the terminal wing can bend on bonding jumper.Therefore, preferred at another of the method according to the invention
Form of implementation proposes, bending module bends on bonding jumper the first terminal section and the terminal wing of the second terminal section.
Finally, terminal section is flexible in predetermined terminal location, in described terminal location, and described terminal section
For connecting.Correspondingly, propose in a preferred form of implementation of the method according to the invention, preferably in bending module
The first terminal section and the second terminal section are bent in terminal location by bonding jumper.
Accompanying drawing explanation
Describe the present invention in detail by means of embodiment now.Accompanying drawing is exemplary, although should explain present inventive concept, but
Never should limit or the most finally repeat present inventive concept.Accompanying drawing represents:
The axle of the thermally sensitive electric switch of Fig. 1 surveys view
The top view of the thermally sensitive electric switch of Fig. 2
The cross section view according to the hatching line A-A in Fig. 2 of the thermally sensitive electric switch of Fig. 3
The cross section view according to the hatching line B-B in Fig. 2 of the thermally sensitive electric switch of Fig. 4
Fig. 5 is by the top view of the first of punching and second switch bridge formed
The axle of Fig. 6 switch bridge surveys view, has fixing spring element and fixing contact-type profile
The axle of Fig. 7 switch bridge unit surveys view, has fixing spring element and fixing contact-type profile
The axle of Fig. 8 switch bridge unit surveys view, has spring element and contact section, in terminal with fixing in contact position
Position has terminal section, there is fixing contact section in the foreground
Another three-dimensional view of Fig. 9 Fig. 8, has spring element in the foreground
Reference numerals list:
1 switch
2 springing dishes
3 switch bridge
4 housings
5 press-on pins
6 spring elements
7 lids
First of 8 switch bridge
Second of 9 switch bridge
10 the first terminal sections
11 second terminal sections
12 fixing contact sections
13 jointings being used for spring element
The contact-type profile of 14 spring elements
The contact-type profile of 15 fixing contact sections
16 working of plasticss
17 pin guides
18 contact positions
The terminal location of 19 terminal sections
20 switch bridge unit
21 first central section
22 first lower limbs
23 middle parts
24 second lower limbs
The free end of 25 spring elements
The anchor portion of 26 spring elements
The inner flange of 27 housings
The wing of 28 the first terminal sections
The wing of 29 second terminal sections
The sweep of 30 wings being used for the first terminal section
The sweep of 31 wings being used for the second terminal section
32 support components
The inner side of 33 housings
First sweep of 34 fixing contact sections
Second sweep of 35 fixing contact sections
36 second central section
The sweep of 37 the first terminal sections
The sweep of 38 second terminal sections
The longitudinal axis of 39 the first terminal sections
Detailed description of the invention
Fig. 1 showing, the axle of the thermally sensitive electric switch 1 according to the present invention surveys view, described thermally sensitive
Electric switch is also referred to as thermoregulator.Described thermally sensitive electric switch has the housing 4 being preferably manufactured from plastic, described
Housing is closed by means of lid 7 in side.Here, lid 7 is preferably made with metal such as aluminum, it is connected with housing 4 by flanging.Separately
Outward, it can be seen that the first terminal section 10 and the second terminal section 11, described the first terminal section and the second terminal section are used in Fig. 1
In being electrically connected from outside.
Fig. 2 shows the top view of the switch 1 of Fig. 1, hatching line A-A and B-B that show with grass and provide corresponding sight line side
To arrow.
Fig. 3 shows the cross section view according to the hatching line A-A in Fig. 2.Here it will be seen that and be in the first arching state
Make and have the springing dish 2 of arching of circular profile with thermo bimetal.Described in initial temperature under exist first arch
In curved state, springing dish 2 is stacked in the inner flange 27 of housing 4.
Press-on pins 5 is close in described arching state in other words in described position but does not contact springing dish 2 and prop up
Support is on spring element 6, and does not apply pressure on spring element 6.As shown the section according to the hatching line B-B in Fig. 2
In Fig. 4 of view appreciable, here, spring element 6 contacts section 12 contact with fixing in contact position 18.Definitely
Ground is said, the contact-type profile 14 being fixed on the free end 25 of spring element 6 contacts connecing on section 12 with being fixed on to fix
Touch type profile 15 and there is face contact.
Spring element 6 takes the shape of the letter U and bends and be fixed on jointing 13 with its another end 26.At jointing 13
On second 9 of switch bridge 3 (comparison diagram 5), the second terminal section 11 is also such.In other words, spring element 6 is conductively
It is connected with the second terminal section 11.
Fixing contact section 12 is also on first 8 of switch bridge 3 (comparison diagram 5), the first terminal section 10 be also as
This.In other words, fixing contact section 12 is connected with the first terminal section 10 conductively.Thus, in contact position 18, two
Terminal section 10,11 is connected to each other conductively.
First 8 of switch bridge 3 and second 9 is embedded in working of plastics 16.On the one hand, first 8 and second 9 is passed through
Working of plastics 16 is the most electrically isolated.On the other hand, working of plastics 16 makes first 8 and second 9 to be located opposite to each other and make
Its position is fixed.Finally, housing 4 is fixed on working of plastics 16.First 8, second 9 and working of plastics 16 form switch bridge unit
20。
If springing dish 2 certain be commonly angled relative to that initial temperature improves first at a temperature of change suddenly its arching shape
State, then springing dish 2 opposing lid is pressed and is pressed in for 7 times in press-on pins 5, described press-on pins dead spring element 6 the most again.With this side
Formula, the electrical contact between the first terminal section 10 and the second terminal section 11 is interrupted.Press-on pins 5 is guided by pin in this motion
Device 17(comparison diagram 3) guide.
Another be commonly angled relative to the first temperature the lowest at a temperature of, springing dish 2 jumps back to again institute in Fig. 3 and Fig. 4
In the arching state shown.Spring element 6 can bounce back into now in contact position 18 and make at this press-on pins 5 guide dress by pin
Put 17 to move in the position shown in Fig. 3 and Fig. 4.
Directly first 8 and second 9 by means of punching module (not shown) simultaneously at a bonding jumper (not shown)
After upper punch makes, Fig. 5 shows the top view of switch bridge 3.As second 9, flat element is formed also for first 8 at this
And be in approximately the same plane with described second.
In Fig. 5 it may be clearly seen that, first shape in the broadest sense with the L that have rotated 90 °, wherein,
Fixing contact section 12 forms a section of L.Another section of L passes through the first central section 21 and the first terminal section 10 shape
Become.Here it will be seen that the wing 28 of the first terminal section 10, the described wing bends 180 ° further around the sweep 30 shown in dotted line.Class
As, Fig. 5 can also see that the corresponding wing 29 of the second terminal section 11, the described wing is further around the sweep 31 shown in dotted line
Bend 180 °.
Fig. 6 shows that the axle of switch bridge 3 surveys view, and wherein, contact-type profile 15 is preferably solid by spot welding or laser welding
It is scheduled on fixing contact section 12.Spring element 6 preferably passes through spot welding or by upsetting pressure engaging process TOX in other words with end 26
Process is fixed on jointing 13.Contact-type profile 14 is it is also preferred that be fixed on spring element 6 by spot welding or laser welding
On free end 25.
Axle at Fig. 7 is surveyed in view, and first 8 of switch bridge and second 9 the most embedding with plastic injection encapsulating
Entering in working of plastics 16, described first and second forms switch bridge unit 20 with described working of plastics.Additionally, in order to support shell
Body 4, working of plastics 16 has support component 32, and described support component is stretched from the plane (such as comparison diagram 6) of the first central section 21
Go out and the inner side 33 of housing 4 is supported on described support component (comparison diagram 3).
Axle at Fig. 8 is surveyed in view, and fixing contact section 12 and spring element 6 bend in contact position 18.To this end, it is solid
Surely contact section 12 is along the first sweep 34(comparison diagram 5) from the plain bending out 90 ° of the first central section 21, then edge
The second sweep 35(comparison diagram 5) 90-degree bent again.Thus, the first central section 21 forms the first lower limb 22 of U-shaped now, Gu
Surely contact section 12 forms middle part 23 and the second lower limb 24.For the purpose easily observed, the first sweep 34 can regard the as
One central section 21 contacts the imaginary boundary between section 12 with fixing.As long as the first terminal section 10 is not from the first middle region
The plain bending of section 21 out, not only vertical relative to described the first terminal section of the first sweep 34 but also the second sweep 35
Extend parallel to axis 39, comparison diagram 5, Fig. 6 and Fig. 7.
Spring element 6 also takes the shape of the letter U bending from its anchor portion 26, thus, free end 25 be arranged on the first lower limb 22 with
Between second lower limb 24.Here, the contact-type profile 15 that spring element 6 opposing is fixed on fixing contact section 12 presses solidly and is scheduled on institute
State the contact-type profile 14 on the free end 25 of spring element.When the embodiment shown in manufacturing, the bending of spring element 6 exists
Carry out before the bending of fixing contact section 12.
Fig. 9 shows that under another direction of visual lines the axle of the object of Fig. 8 surveys view, has spring element 6 in the foreground
Anchor portion 26.Terminal section 10,11 is in terminal location 19 at this.Compared with Fig. 6, terminal section 10,11 is at this
90-degree bent, exactly anti-parallel bends relative to support component 32 respectively.Described bending is for the first terminal section 10
Speech extends around sweep 37, extends around sweep 38, see Fig. 5 for the second terminal section 11.For easily observe
Purpose, sweep 37 can regard the imaginary boundary between the first terminal section 10 and the first central section 21 as at this.Similarly, go out
In the purpose easily observed, sweep 38 can be regarded as between the second terminal section 11 and second central section 36 of second 9
Imagination boundary.
Claims (30)
1. a thermally sensitive electric switch (1), including: the springing element made with thermo bimetal；Spring element (6), makees
For movable contact section；Fixing contact section (12), described movable contact section in order to make contact Guan Bi and can be towards described
Fixing contact section movement；Press-on pins (5), as the effect attachment means between springing element and spring element (6)；Pin guides
Device (17)；Housing (4)；And lid (7), wherein, it being provided with switch bridge (3), described switch bridge (3) is by first (8) and the
Two (9) form, and wherein, described first (8) form the first terminal section (10) and the described fixing section (12) that contacts, described
Second (9) form the second terminal section (11) and jointing (13), and described spring element (6) is fixed on described jointing
On, it is characterised in that: being provided with the switch bridge unit (20) being fixed in described housing (4), described switch bridge unit is by described
Switch bridge (3) and working of plastics (16) composition；First (8) and described second (9) of described switch bridge (3) are moulded described in being embedded into
In materials and parts (16), it is connected to each other by described working of plastics (16) and position is fixed toward each other, described fixing contact section
(12) forming the end regions of first (8) of described switch bridge (3), wherein, described first (8) are by described the first terminal district
Section (10), the first central section (21) form with the described fixing section (12) that contacts；Described fixing contact section (12) L-shaped from
The plane of described first central section (21) bends out；Described fixing contact section (12) and described first central section
(21) formation has the first lower limb (22), middle part (23) and the U-shaped of the second lower limb (24), wherein, described first central section (21)
Form described first lower limb (22), described fixing contact section (12) formed described middle part (23) and with described first lower limb (22)
Substantially parallel described second lower limb (24).
Switch the most according to claim 1 (1), it is characterised in that: the most described the first terminal section (10) and described second end
Sub-segments (11) and described fixing contact section (12) are stretched out from described working of plastics (16).
3. according to the switch (1) of claim 1 or 2, it is characterised in that: first (8) of described switch bridge (3) and second
(9) pressing product made with metal respectively.
4. according to the switch (1) of claim 1 or 2, it is characterised in that: described springing element is springing dish (2).
5. according to the switch (1) of claim 1 or 2, it is characterised in that: described middle part (23) is relative to described first lower limb (22)
Bending around the first sweep (34), described first sweep is put down relative to the longitudinal axis (39) of described the first terminal section (10)
Extend capablely；Described second lower limb (24) bends around the second sweep (35) relative to described middle part (23), described second bending
Line extends parallel to described first sweep (34).
6. according to the switch (1) of claim 1 or 2, it is characterised in that: above and fix described at described spring element (6)
A contact-type profile (14,15), wherein, said two contact-type profile (14,15) it is mounted with respectively in contact section (12)
Contact position (18) contacts with each other.
7. according to the switch (1) of claim 1 or 2, it is characterised in that: described spring element (6) has free end (25), uses
In contacting with the described fixing section (12) that contacts.
Switch the most according to claim 7 (1), it is characterised in that: the free end (25) of described spring element (6) is arranged on institute
State between the first lower limb (22) and described second lower limb (24).
Switch the most according to claim 7 (1), it is characterised in that: the free end of described spring element (6) have simultaneously towards
Described first lower limb (22) and the side of described second lower limb (24).
10. according to the switch (1) of claim 1 or 2, it is characterised in that: described spring element (6) takes the shape of the letter U bending.
11. switches according to claim 10 (1), it is characterised in that: the opening of the described spring element (6) of U-shaped points to by institute
State the opening of the U-shaped structure that the first lower limb (22), described middle part (23) and described second lower limb (24) are formed.
12. according to the switch (1) of claim 1 or 2, it is characterised in that: described jointing (13) forms described switch bridge (3)
The end regions of second (9), wherein, described second (9) are by described second terminal section (11), the second central section
(36) form with described jointing (13)；Described second central section (36), described jointing (13) and described spring element
Part (6) forms U-shaped structure, and the opening of this U-shaped structure points to by described first lower limb (22), described middle part (23) and described second
The opening of the U-shaped that lower limb (24) is formed.
13. switches according to claim 11 (1), it is characterised in that: described second terminal section (11) is relative to described first
Terminal section (10) is arranged abreast.
14. 1 kinds of methods being used for manufacturing thermally sensitive electric switch (1), it is characterised in that: the method comprises the steps:
-by means of punching module first (8) and second (9) of punching switch bridge (3) on bonding jumper, wherein, described
One (8) form the first terminal section (10) and fixing contact section (12), and described second (9) form the second terminal section
(11) and for the jointing (13) of spring element (6)；
-described spring element (6) is fixed on described jointing (13) with an end (26)；
-by described first (8) and second (9) use parts of plastics ground injection encapsulated；
-described fixing contact section (12) is bent to the shape that the first central section (21) with described first (8) takes the shape of the letter U
Shape, wherein, described first central section (21) forms the first lower limb (22), and described fixing contact section (12) forms middle part
And second lower limb (24) substantially parallel with described first lower limb (22) (23).
15. methods according to claim 14, it is characterised in that: produce described switch bridge by means of described punching module simultaneously
(3) first (8) and second (9).
16. according to the method for claims 14 or 15, it is characterised in that: by spot welding or carried out described by upsetting pressure engaging process
Spring element (6) fixing on described jointing (13).
17. according to the method for claims 14 or 15, it is characterised in that: respectively by a contact-type before partly injection encapsulated
Profile (14,15) is fixed on the free end (25) of described spring element (6) and on described fixing contact section (12).
18. methods according to claim 17, it is characterised in that: carry out described contact-type profile (14,15) by welding process
Described spring element (6) fixing above and/or on described fixing contact section (12).
19. according to the method for claims 14 or 15, it is characterised in that: at of switch bridge (3) described in partly injection encapsulated
The most not the first terminal section (10) and described second terminal section (11) described in injection encapsulated when one (8) and second (9)
And described fixing contact section (12).
20. according to the method for claims 14 or 15, it is characterised in that: the also bullet described in injection encapsulated when partly injection encapsulated
The fixing end (26) of spring element (6).
21. according to the method for claims 14 or 15, it is characterised in that: described spring element (6) is towards described fixing contact section
(12) direction bends to a shape；The bending of described spring element is in the advance of the bending of described fixing contact section (12)
OK.
22. methods according to claim 21, it is characterised in that: described shape is U-shaped.
23. methods according to claim 21, it is characterised in that: make described spring when bending described fixing contact section (12)
The free end (25) of element (6) arrives in contact position (18) between described first lower limb (22) and described second lower limb (24),
In described contact position, contact-type profile (14,15) contacts with each other.
24. according to the method for claims 14 or 15, it is characterised in that: described spring element (6) be fixed on assemble welding mould
Block is carried out on described bonding jumper.
25. methods according to claim 17, it is characterised in that: described contact-type profile (14,15) be fixed on assemble welding
Module is carried out on described bonding jumper.
26. according to the method for claims 14 or 15, it is characterised in that: the part injection carried out with plastics is encapsulated in described metal
Carry out in pressure injection module on bar.
27. according to the method for claims 14 or 15, it is characterised in that: in bending module, on described bonding jumper, bending is described
The first terminal section (10) and the terminal wing (28,29) of the second terminal section (11).
28. according to the method for claims 14 or 15, it is characterised in that: by described the first terminal section (10) and the second terminal region
Section (11) bends in terminal location (19).
29. methods according to claim 28, it is characterised in that: it is curved on described bonding jumper in bending module.
30. methods according to claim 18, it is characterised in that: described welding process is a weld through or laser welding.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATGM133/2012 | 2012-04-10 | ||
| AT1332012 | 2012-04-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103367034A CN103367034A (en) | 2013-10-23 |
| CN103367034B true CN103367034B (en) | 2016-12-21 |
Family
ID=48220252
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210216967.4A Active CN103367034B (en) | 2012-04-10 | 2012-06-27 | Thermally sensitive electric switch and the method being used for manufacturing described electric switch |
| CN2012203067688U Expired - Lifetime CN202930316U (en) | 2012-04-10 | 2012-06-27 | Temperature-sensitive electric switch |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203067688U Expired - Lifetime CN202930316U (en) | 2012-04-10 | 2012-06-27 | Temperature-sensitive electric switch |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2650897B1 (en) |
| CN (2) | CN103367034B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367034B (en) * | 2012-04-10 | 2016-12-21 | 电子装置车间武姆布工程师有限公司 | Thermally sensitive electric switch and the method being used for manufacturing described electric switch |
| CN104103455B (en) * | 2014-06-30 | 2017-08-04 | 佛山市高明西特电器有限公司 | A kind of temperature detect switch (TDS) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4669182A (en) * | 1984-01-23 | 1987-06-02 | Therm-O-Disc, Incorporated | Method of gaging a snap disc condition sensor |
| CN1300442A (en) * | 1999-04-16 | 2001-06-20 | 打矢恒温器株式会社 | thermal protector |
| CN202930316U (en) * | 2012-04-10 | 2013-05-08 | 电子装置车间武姆布工程师有限公司 | Temperature-sensitive electric switch |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60164743U (en) * | 1984-04-11 | 1985-11-01 | 株式会社ボッシュオートモーティブ システム | thermo switch |
| KR20000020485U (en) * | 1999-05-07 | 2000-12-05 | 윤종용 | 3-pole thermostat |
| KR200386836Y1 (en) * | 2005-03-21 | 2005-06-16 | 엘에스산전 주식회사 | A Thermal Overload Relay |
-
2012
- 2012-06-27 CN CN201210216967.4A patent/CN103367034B/en active Active
- 2012-06-27 CN CN2012203067688U patent/CN202930316U/en not_active Expired - Lifetime
-
2013
- 2013-04-10 EP EP13163124.4A patent/EP2650897B1/en not_active Not-in-force
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4669182A (en) * | 1984-01-23 | 1987-06-02 | Therm-O-Disc, Incorporated | Method of gaging a snap disc condition sensor |
| CN1300442A (en) * | 1999-04-16 | 2001-06-20 | 打矢恒温器株式会社 | thermal protector |
| CN202930316U (en) * | 2012-04-10 | 2013-05-08 | 电子装置车间武姆布工程师有限公司 | Temperature-sensitive electric switch |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2650897B1 (en) | 2016-06-29 |
| CN202930316U (en) | 2013-05-08 |
| EP2650897A1 (en) | 2013-10-16 |
| CN103367034A (en) | 2013-10-23 |
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