CN104934261B - Rivet connection structure of snap-action temperature controller - Google Patents
Rivet connection structure of snap-action temperature controller Download PDFInfo
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- CN104934261B CN104934261B CN201510307715.6A CN201510307715A CN104934261B CN 104934261 B CN104934261 B CN 104934261B CN 201510307715 A CN201510307715 A CN 201510307715A CN 104934261 B CN104934261 B CN 104934261B
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- rivet
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- nail
- inflation port
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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
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Abstract
The invention provides a rivet connection structure of snap-action temperature controller, and aims at improving the reliability of electrical connection among a spring, a fixed connection plate and corresponding binding posts in the snap-action temperature controller. The rivet connection structure comprises the fixed connection plate, the spring, a long rivet, a short rivet, a short-rivet binding post and a long-rivet binding post, the short-rivet binding post and the spring are pivoted to the inner and outer sides of a casing via the short rivet, and the long-rivet binding post and the static connection plate are pivoted to the inner and outer sides of the casing via the long rivet. The rivet connection structure is characterized in that hollow expansion holes whose one end is open are respectively left in the head ends of the long rivet and the short rivet, the rivet bodies at the bottom positions of the expansion holes of the long rivet and the short rivet are punched and thickened to form projection portions when being pivoted, the head ends of the long rivet and the short rivet are punched and enlarged to form expansion portions when being pivoted, and the projection ports and the expansion portions form a clamping structure which clamps riveted parts.
Description
Technical field
The invention belongs to family's electro-technical field, it is related specifically to a kind of riveted joint structure of Kick type temperature controller.
Background technology
The Kick type temperature controller that existing household electrical appliance use is mainly used as temperature control, overtemperature protection etc., Kick type temperature controller
The connection of the moving contact of product, static contact component and binding post is to make housing produce elasticity by the riveting pressure of rivet respectively
Deformation and strain, due to when ailhead rivet in housing because ailhead hinders rivet nut cannot expand and shell fragment, determines fishplate bar interference fit,
If interference fit reassembles in advance, because shell fragment thickness only has 0.2 about, easily loosen in assembling process very much, therefore, long-term
Repeatedly after cold and hot work, this tightening force can taper into and lead to contact resistance to become big, thus affecting life of product.
In order to solve the above problems, the riveting of some Kick type temperature controllers begins with tubular rivet or reducing rivet is carried out
Riveting, is the example being respectively adopted tubular rivet and the riveting of reducing tubular rivet as shown in Figure 1, Figure 2.The meeting in riveting of rivet hollow section
Expand, the position that it expands is in shell fragment, determines the riveting in the hole of fishplate bar, can contact with hole wall after therefore rivet expands, that is, as Fig. 3
Shown, the expansion of rivet hollow section and shell fragment, the riveted holes determine fishplate bar are isometrical cooperation, and can not reach interference secure fit,
Some even gap cooperations, so conduction rely primarily on the two ends tension contact surface of rivet, in long-term use, due to shell
Body material is different from the metal material coefficient of expansion, and cold and hot effect repeatedly can make riveting position loosen and damage temperature controller.
Patent No. 98200816.3 discloses a kind of " with the Kick type temperature controller of rivet sleeve ", and it is as current carrying element
Equipped with rivet sleeve on the rivet of connector, its two ends is connected with the bottom of contact assembly and binding post respectively.Ring in high temperature
In border, even if the elastic force of housing relaxes, remain between current carrying element keep good connection by rivet sleeve.Such scheme
Although solving the problems, such as loosing of rivet, increased the operation installing rivet sleeve, cost increases, also easily omitting nail set, dress
Join also inconvenient and mould is very fragile, apply few at present.
Content of the invention
The purpose of the present invention is to propose to a kind of riveted joint structure of Kick type temperature controller, to improve in Kick type temperature controller
Shell fragment, determine fishplate bar and respective terminal son reliability of electrical connection.
The riveted joint structure of the Kick type temperature controller of the present invention includes determining fishplate bar, shell fragment, long rivet, short rivet, short nail
Binding post, spike binding post；Short nail joint line terminals, shell fragment are riveted on inside and outside housing by described short rivet, described length
Rivet by spike binding post, determine fishplate bar and be riveted on inside and outside housing, it is critical only that the ailhead end of described long rivet, short rivet
All it is reserved with the hollow inflation port of one end open, the rivet nut at long rivet, the inflation port bottom hole of short rivet is passed through during riveting
Punching press and thicker formation protuberance；Described long rivet, the ailhead end of short rivet are passed through punching press during riveting and are become big formation and expand
Portion；The mounting means of described short rivet is one of following a, b two ways: a, the protuberance of described short rivet and bulge are by bullet
Piece clamps；Short nail joint line terminals are clamped by b, the protuberance of described short rivet and bulge；The mounting means of described long rivet is
One of following c, d two ways: c, the protuberance of described long rivet and bulge will determine fishplate bar clamping；D, described long rivet prominent
Go out portion to clamp spike binding post with bulge.
It is matched for clamping tightly so that increased contact area between rivet and institute's riveting part by protuberance and bulge,
And ensure that connective stability between rivet and institute's riveting part, fully ensure that between the rivet nut of rivet and institute's riveting part
Reliability of electrical connection, which reduces the shadow to reliability of electrical connection for the thickness change that housing leads to because of temperature change
Ring, thus improve the reliability of overall electrical connection.
Further, the selection principle of described short rivet is as follows: the shaft diameter of described short rivet is 1.9～2.5mm, short
The hole wall wall thickness of the inflation port of rivet is 0.33～0.6mm；Before riveting, when nail tail and the short nail joint line terminals of short rivet offset
When, the diapire place plane of the inflation port of short rivet and the spacing of shell fragment bottom surface are 0.2～-0.35mm, or when short rivet
When nail tail is offseted with shell fragment, the spacing of top surface at the diapire place plane of the inflation port of short rivet and short nail joint line terminals riveted holes
For -0.2～0.35mm；
The selection principle of described long rivet is as follows: the shaft diameter of described long rivet be 1.96～2.5mm, long rivet swollen
The hole wall wall thickness in swollen hole is 0.33～0.6mm；Before riveting, when the nail tail of long rivet is offseted with spike binding post, long riveting
The diapire place plane of the inflation port of nail determining between the bottom surface of fishplate bar and top surface, or the nail tail when long rivet with determine fishplate bar phase
To when, the diapire place plane of the inflation port of long rivet is between the bottom surface at spike binding post riveted holes and top surface；Described
Inflation port diapire place plane is the uncovered side end face place plane of the cone of inflation port bottom.
Above-mentioned rivet is irony commonly used in the trade or the semitubular rivet of red copper material.
Only follow above-mentioned rivet selection principle, guarantee riveting when, the rivet nut warp at the inflation port bottom hole of rivet
Cross riveting when punching press and thicker formation protuberance；The ailhead end of rivet is passed through punching press during riveting and is become big and form bulge,
Protuberance and bulge by the shell fragment being riveted, binding post, determine fishplate bar etc. and clamp.If the shaft diameter of rivet, inflation port
Hole wall wall thickness and riveting before inflation port diapire place plane position select improper, may result in following problems: swollen
Rivet nut at the bottom hole of swollen hole is limited and cannot be become big and form protuberance by the riveted holes of institute's riveting part, even if or being formed prominent
Go out portion, also cannot coordinate with bulge and institute's riveting part is clamped.
Further, for ensureing the electrical connection reliability between rivet and institute's riveting part, described long rivet, the nail of short rivet
Body and the riveted holes interference fit of institute's riveting part.
Can be with the riveted holes interference fit of institute's connection member for convenience of installation and guarantee rivet nut, described long rivet, short riveting
The nail tail end of nail is diameter-changing body, the diameter with diameter greater than long rivet, short rivet remainder rivet nut of described diameter-changing body, in riveting
When, the riveted holes interference fit of described diameter-changing body and institute's riveting part.
The riveted joint structure of the Kick type temperature controller of the present invention passes through to select suitable rivet, in premise easy to assembly
Under, improve shell fragment, determine the reliability of electrical connection of fishplate bar and binding post, so that the work of Kick type temperature controller more may be used
Lean on, also improve its service life.
Brief description
Fig. 1,2 be Kick type temperature controller of the prior art riveted joint structure schematic diagram.
Fig. 3 is Fig. 1, in 2 rivet stress deformation schematic diagram.
Fig. 4 is the riveted joint structure schematic diagram of the Kick type temperature controller of embodiment 1.
Fig. 5 is the structural representation before riveting for the riveted joint structure of the Kick type temperature controller of embodiment 1.
Fig. 6 is the riveted joint structure schematic diagram of the Kick type temperature controller of embodiment 2.
Fig. 7 is the structural representation before riveting for the riveted joint structure of the Kick type temperature controller of embodiment 2.
Fig. 8 is Fig. 4, in 6 rivet stress deformation schematic diagram () taking short rivet as a example.
Accompanying drawing indicates: 1, determines fishplate bar；2nd, shell fragment；3rd, long rivet；4th, short rivet；5th, short nail joint line terminals；6th, spike wiring
Terminal；7th, housing；8th, diameter-changing body；9th, inflation port；10th, protuberance；11st, bulge.
Specific embodiment
Below against accompanying drawing, by the description to embodiment, for example involved to the specific embodiment of the present invention is each
Mutual alignment between the shape of component, construction, each several part and annexation, the effect of each several part and operation principle etc. are made into one
The detailed description of step.
Embodiment 1:
As shown in Fig. 4,8, the riveted joint structure of the Kick type temperature controller of the present embodiment includes determining fishplate bar 1, shell fragment 2, length
Rivet 3, short rivet 4, short nail joint line terminals 5, spike binding post 6；Described short rivet 4 is by short nail joint line terminals 5, shell fragment 2 riveting
Be connected to inside and outside housing 7, described long rivet 3 by spike binding post 6, determine fishplate bar 1 and be riveted on inside and outside housing 7, crucial
It is: described long rivet 3, the ailhead end of short rivet 4 are all reserved with the hollow inflation port 9 of one end open, long rivet 3, short riveting
Rivet nut at inflation port 9 bottom hole of nail 4 passes through punching press and thicker formation protuberance 10 during riveting；Described long rivet 3, short rivet
4 ailhead end is passed through punching press during riveting and is become big and form bulge 11；The protuberance 10 of described short rivet 4 will with bulge 11
Shell fragment 2 clamps；The protuberance 10 of described long rivet 3 and bulge 11 will be determined fishplate bar 1 and clamp.
As shown in figure 5, the selection principle of above-mentioned short rivet 4 is as follows: the shaft diameter of described short rivet 4 be 1.9～
2.5mm, the hole wall wall thickness of the inflation port 9 of short rivet 4 is 0.33～0.6mm；Before riveting, when nail tail and the short nail of short rivet 4
When binding post 5 offsets, the diapire place plane of the inflation port 9 of short rivet 4 and the spacing of shell fragment 2 bottom surface be 0.2～-
0.35mm, that is, the diapire place plane of inflation port 9 is not above shell fragment 2 bottom surface 0.2mm or higher, nor is less than shell fragment 2 bottom
Face 0.35mm or lower that is to say, that the diapire place plane of inflation port 9 should be in Figure 5 between two planes of a, b, wherein a
Plane is 0.2mm with spacing h2 of shell fragment 2 bottom surface, and b plane is 0.35mm with spacing h1 of shell fragment 2 bottom surface.
The selection principle of above-mentioned long rivet 3 is as follows: the shaft diameter of described long rivet 3 is 1.96～2.5mm, long rivet 3
Inflation port 9 hole wall wall thickness be 0.33～0.6mm；Before riveting, when nail tail and the spike binding post 6 of long rivet 3 offset
When, the diapire place plane of the inflation port 9 of long rivet 3 is between the bottom surface determining fishplate bar 1 and top surface.
In the present embodiment, long rivet 3, short rivet 4 nail tail end be diameter-changing body 8, described diameter-changing body 8 a diameter of
2.2mm, length is 0.8mm；Long rivet 3, a diameter of 2mm of shank portion in addition to diameter-changing body 8 for the short rivet 4, described long rivet
3rd, the ailhead end of short rivet 4 is all reserved with the inflation port 9 of hollow-core construction, the aperture 1.2mm of inflation port 9, and the hole wall of inflation port 9 is thick
Spend for 0.4mm, specially one end closing, one end perforate, its blind end is cone shape, in this patent, inflation port 9 diapire institute
Refer to the uncovered side end face place plane of the cone of inflation port 9 bottom in plane.
The diameter-changing body 8 of short rivet 4 and the riveted holes interference fit of short nail joint line terminals 5, and the protuberance 10 of short rivet 4 with
Rivet nut between bulge 11 and the riveted holes interference fit of shell fragment 2；The diameter-changing body 8 of long rivet 3 and the riveting of spike binding post 6
Connect hole interference fit, the rivet nut between the protuberance 10 of long rivet 3 and bulge 11 and the riveted holes interference fit determining fishplate bar 1.
In above-mentioned Kick type temperature controller, the method for attachment of riveted joint structure comprises the steps:
A: short rivet 4 is sequentially passed through the riveted holes of the riveted holes of short nail joint line terminals 5, housing 7, shell fragment 2 so that short riveting
The diameter-changing body 8 of nail 4 and the riveted holes interference fit of short nail joint line terminals 5, and by the nail tail of short rivet 4 and short nail joint line terminals 5
Offset, now the diapire place plane of the inflation port 9 of short rivet 4 and the spacing of shell fragment 2 bottom surface should be 0.2～-0.35mm；Profit
Riveted with rivet driver, during riveting, inflation port 9 hole wall sinks so that short rivet 4 rivet nut expands in inflation port 9 bottom hole crucial point,
Thus forming the protuberance 10 that external diameter is more than rivet nut external diameter, the ailhead end of short rivet 4 is passed through punching press during riveting and is become big shape
Become bulge 11, the protuberance 10 of described short rivet 4 forms clamping structure with bulge 11 and clamps shell fragment 2；Meanwhile, short riveting
The ailhead end of nail 4 expands and becomes interference fit with the riveted holes of shell fragment 2.
B: long rivet 3 being sequentially passed through the riveted holes of spike binding post 6, housing 7, determining the riveted holes of fishplate bar 1 so that growing
The diameter-changing body 8 of rivet 3 and the riveted holes interference fit of spike binding post 6, and by the nail tail of long rivet 3 and spike binding post
6 offset, and the diapire place plane of the inflation port 9 of this duration rivet 3 should be between the bottom surface determining fishplate bar 1 and top surface；Using riveting
Nailing machine is riveted, and during riveting, inflation port 9 hole wall sinks so that long rivet 3 rivet nut expands in inflation port 9 bottom hole crucial point, thus
Form the protuberance 10 that external diameter is more than rivet nut external diameter；The ailhead end of long rivet 3 is passed through punching press during riveting and becomes big formation swollen
Swollen portion 11, the protuberance 10 of described long rivet 3 forms clamping structure with bulge 11 and will determine fishplate bar 1 and clamp；Meanwhile, long rivet
3 ailhead end expands and becomes interference fit with the riveted holes determining fishplate bar 1.
Embodiment 2；
As shown in fig. 6, as different from Example 1, in the present embodiment, the protuberance 10 of described short rivet 4 and expansion
Short nail joint line terminals 5 are clamped by portion 11；Spike binding post 6 is clamped by the protuberance 10 of described long rivet 3 and bulge 11.
As shown in fig. 7, the selection principle of above-mentioned short rivet 4 is as follows: the shaft diameter of described short rivet 4 be 1.9～
2.5mm, the hole wall wall thickness of the inflation port 9 of short rivet 4 is 0.33～0.6mm；Before riveting, when nail tail and the shell fragment 2 of short rivet 4
When offseting, at the diapire place plane of the inflation port 9 of short rivet 4 and short nail joint line terminals 5 riveted holes, the spacing of top surface is -0.2
～0.35mm, that is, the diapire place plane of inflation port 9 is not above top surface 0.35mm at short nail joint line terminals 5 riveted holes or more
Height, nor less than top surface 0.2mm or lower at short nail joint line terminals 5 riveted holes that is to say, that the diapire of inflation port 9 is located
Plane should be in the figure 7 between two planes of c, d, and wherein at c plane and short nail joint line terminals 5 riveted holes, spacing h4 of top surface is
At 0.2mm, d plane and short nail joint line terminals 5 riveted holes, spacing h3 of top surface is 0.35mm.
The selection principle of above-mentioned long rivet 3 is as follows: the shaft diameter of described long rivet 3 is 1.96～2.5mm, long rivet 3
Inflation port 9 hole wall wall thickness be 0.33～0.6mm；Before riveting, when the nail tail of long rivet 3 is with determining fishplate bar 1 and offseting, long riveting
The diapire place plane of the inflation port 9 of nail 3 is between the bottom surface at spike binding post 6 riveted holes and top surface；Described inflation port 9
Diapire place plane is the uncovered side end face place plane of the cone of inflation port 9 bottom.
In the present embodiment, long rivet 3, short rivet 4 nail tail end be diameter-changing body 8, described diameter-changing body 8 a diameter of
2.2mm, length is 0.8mm；Long rivet 3, a diameter of 2mm of shank portion in addition to diameter-changing body 8 for the short rivet 4, described long rivet
3rd, the ailhead end of short rivet 4 is all reserved with the inflation port 9 of hollow-core construction, the aperture 1.2mm of inflation port 9, and the hole wall of inflation port 9 is thick
Spend for 0.4mm, specially one end closing, one end perforate, its blind end is cone shape, in this patent, inflation port 9 diapire institute
Refer to the uncovered side end face place plane of the cone of inflation port 9 bottom in plane.
In the Kick type temperature controller of the present embodiment, the method for attachment of riveted joint structure comprises the steps:
A: short rivet 4 is sequentially passed through the riveted holes of the riveted holes of shell fragment 2, housing 7, short nail joint line terminals 5 so that short riveting
The diameter-changing body 8 of nail 4 and the riveted holes interference fit of shell fragment 2, and the nail tail of short rivet 4 and shell fragment 2 are offseted, now short rivet 4
The diapire place plane of inflation port 9 and short nail joint line terminals 5 riveted holes at the spacing of top surface should be -0.2～0.35mm；Profit
Riveted with rivet driver, during riveting, inflation port 9 hole wall sinks so that short rivet 4 rivet nut expands in inflation port 9 bottom hole crucial point,
Thus forming the protuberance 10 that external diameter is more than rivet nut external diameter, the ailhead end of short rivet 4 is passed through punching press during riveting and is become big shape
Become bulge 11, the protuberance 10 of described short rivet 4 forms clamping structure with bulge 11 and clamps short nail joint line terminals 5；
Meanwhile, the ailhead end of short rivet 4 expands and becomes interference fit with the riveted holes of short nail joint line terminals 5.
B: long rivet 3 is sequentially passed through the riveted holes determining the riveted holes of fishplate bar 1, housing 7, spike binding post 6 so that long
The diameter-changing body 8 of rivet 3 and the riveted holes interference fit determining fishplate bar 1, and the nail tail of long rivet 3 is offseted with determining fishplate bar 1, this duration
The diapire place plane of the inflation port 9 of rivet 3 should be between the bottom surface of spike binding post 6 and top surface；Entered using rivet driver
Row riveting, during riveting, inflation port 9 hole wall sinks so that long rivet 3 rivet nut expands in inflation port 9 bottom hole crucial point, thus forming
External diameter is more than the protuberance 10 of rivet nut external diameter；The ailhead end of long rivet 3 is passed through punching press during riveting and is become big and form bulge 11,
The protuberance 10 of described long rivet 3 forms clamping structure with bulge 11 and clamps spike binding post 6；Meanwhile, long rivet 3
Ailhead end expand and become interference fit with the riveted holes inwall of spike binding post 6.
Claims (3)
1. a kind of riveted joint structure of Kick type temperature controller, including determining fishplate bar, shell fragment, long rivet, short rivet, short nail joint line end
Son, spike binding post；Short nail joint line terminals, shell fragment are riveted on inside and outside housing by described short rivet, and described long rivet will
Spike binding post, determine fishplate bar and be riveted on inside and outside housing, described long rivet, the ailhead end of short rivet are all reserved with one end and open
The hollow inflation port of mouth, the rivet nut at long rivet, the inflation port bottom hole of short rivet passes through punching press and thicker formation during riveting
Protuberance；Described long rivet, the ailhead end of short rivet are passed through punching press during riveting and are become big and form bulge；Described short rivet
Mounting means is one of following a, b two ways: shell fragment is clamped by a, the protuberance of described short rivet and bulge；B, described short
Short nail joint line terminals are clamped by the protuberance of rivet and bulge；The mounting means of described long rivet is following c, d two ways
One of: c, the protuberance of described long rivet and bulge will determine fishplate bar clamping；D, the protuberance of described long rivet and bulge will
Spike binding post clamps；It is characterized in that the selection principle of described short rivet is as follows: the shaft diameter of described short rivet is 1.9
～2.5mm, the hole wall wall thickness of the inflation port of short rivet is 0.33～0.6mm；Before riveting, when nail tail and the short nail joint of short rivet
When line terminals offset, the diapire place plane of the inflation port of short rivet and the spacing of shell fragment bottom surface are 0.2～-0.35mm, or
When the nail tail of short rivet is offseted with shell fragment, at the diapire place plane of the inflation port of short rivet and short nail joint line terminals riveted holes
The spacing of top surface is -0.2～0.35mm；The selection principle of described long rivet is as follows: the shaft diameter of described long rivet is 1.96
～2.5mm, the hole wall wall thickness of the inflation port of long rivet is 0.33～0.6mm；Before riveting, when nail tail and the long nail joint of long rivet
When line terminals offset, the diapire place plane of the inflation port of long rivet is determining between the bottom surface of fishplate bar and top surface, or works as long riveting
The nail tail of nail with when determining fishplate bar and offseting, the diapire place plane of the inflation port of the long rivet bottom at spike binding post riveted holes
Between face and top surface；Described inflation port diapire place plane is the uncovered side end face place plane of the cone of inflation port bottom.
2. the riveted joint structure of Kick type temperature controller according to claim 1 is it is characterised in that described long rivet, short riveting
The rivet nut of nail and the riveted holes interference fit of institute's riveting part.
3. the riveted joint structure of Kick type temperature controller according to claim 2 is it is characterised in that described long rivet, short riveting
The nail tail end of nail is diameter-changing body, the diameter with diameter greater than long rivet, short rivet remainder rivet nut of described diameter-changing body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510307715.6A CN104934261B (en) | 2015-06-08 | 2015-06-08 | Rivet connection structure of snap-action temperature controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510307715.6A CN104934261B (en) | 2015-06-08 | 2015-06-08 | Rivet connection structure of snap-action temperature controller |
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| Publication Number | Publication Date |
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| CN104934261A CN104934261A (en) | 2015-09-23 |
| CN104934261B true CN104934261B (en) | 2017-01-25 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204067189U (en) * | 2014-08-21 | 2014-12-31 | 广东福尔电子有限公司 | A kind of Kick type temperature controller |
| CN204332762U (en) * | 2014-12-11 | 2015-05-13 | 广东福尔电子有限公司 | A kind of riveting contacts mould |
| CN204792611U (en) * | 2015-06-08 | 2015-11-18 | 广东福尔电子有限公司 | Rivet connection structure of kick formula temperature controller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3820055B2 (en) * | 1999-04-16 | 2006-09-13 | ウチヤ・サーモスタット株式会社 | Thermal protector |
-
2015
- 2015-06-08 CN CN201510307715.6A patent/CN104934261B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204067189U (en) * | 2014-08-21 | 2014-12-31 | 广东福尔电子有限公司 | A kind of Kick type temperature controller |
| CN204332762U (en) * | 2014-12-11 | 2015-05-13 | 广东福尔电子有限公司 | A kind of riveting contacts mould |
| CN204792611U (en) * | 2015-06-08 | 2015-11-18 | 广东福尔电子有限公司 | Rivet connection structure of kick formula temperature controller |
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| CN104934261A (en) | 2015-09-23 |
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