CN212625223U - Moving contact support and moving contact support assembly - Google Patents
Moving contact support and moving contact support assembly Download PDFInfo
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- CN212625223U CN212625223U CN202021409572.2U CN202021409572U CN212625223U CN 212625223 U CN212625223 U CN 212625223U CN 202021409572 U CN202021409572 U CN 202021409572U CN 212625223 U CN212625223 U CN 212625223U
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- movable contact
- support
- contact support
- hole
- moving contact
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Abstract
A movable contact support arranged to retain a movable contact on the movable contact support, a thermally insulating element being provided on the movable contact support; the heat insulation element is used for blocking the heat from the movable contact to be transmitted to the movable contact support. A movable contact support assembly comprises a movable contact and the movable contact support; the moving contact comprises a contact, a moving contact body and a body supporting seat; the body supporting seat supports the moving contact body; the contact is arranged on the moving contact body.
Description
Technical Field
The present disclosure relates to a movable contact support. The disclosure also relates to a movable contact support assembly, which comprises a movable contact and the movable contact support as described above.
Background
In the movable contact support in the prior art, the movable contact generates a large amount of heat during operation. The heat is transferred to the movable contact support due to the contact between the movable contact and the movable contact support. This causes the movable contact support to be easily broken under high temperature conditions. In addition, because the stress concentration that self structure of moving contact support caused, has played the cracked risk of moving contact support production more. In the moving contact support in the prior art, a pressure spring directly acts on a moving contact body of a moving contact. Because the moving contact body lacks the support, the moving contact body easily produces the deformation and consequently causes the electric arc stagnation in the motion process.
SUMMERY OF THE UTILITY MODEL
To address one or more of the deficiencies in the prior art, a movable contact support configured to retain a movable contact thereon is presented according to one aspect of the present disclosure.
And a heat insulation element is arranged on the moving contact support.
The heat insulation element is used for blocking the heat from the movable contact to be transmitted to the movable contact support.
According to the above aspect of the present disclosure, the movable contact support includes a first support portion and a second support portion.
A smooth transition structure is provided between the first and second frame portions to avoid stress concentrations at their connection.
According to the above aspect of the present disclosure, the first bracket portion includes a bracket through hole.
The bracket through-hole includes a top surface and a bottom surface opposite the top surface.
The insulating element is disposed on the top surface.
The heat insulation element avoids direct contact between the moving contact support and the moving contact under the high-temperature condition, so that the transmission of heat from the moving contact to the moving contact support is reduced, and the risk of the moving contact support due to high-temperature fracture is reduced.
The top surface is closer to the second bracket portion than the bottom surface.
According to the above aspect of the present disclosure, a pressure spring is provided in the holder through-hole.
One end of the pressure spring abuts against the bottom surface of the bracket through hole.
The other end of the pressure spring presses the movable contact against the heat insulation element.
According to the above aspect of the present disclosure, a spring positioning boss is provided on the bottom surface.
One end of the pressure spring is sleeved on the spring positioning convex column.
According to the above aspect of the present disclosure, a plurality of grooves arranged in parallel with each other are provided on the second bracket part.
The plurality of grooves extend along the length direction of the movable contact support.
According to the above aspect of the present disclosure, the movable contact support is made of plastic.
According to the above aspect of the present disclosure, the bracket through-hole includes through-hole sidewalls opposed to each other.
The smooth transition structure extends from the through-hole sidewall to the second leg portion.
The smooth transition structure avoids stress concentration caused by the self structure of the moving contact support, and further reduces the risk of fracture of the moving contact support under the high-temperature condition.
According to another aspect of the present disclosure, a movable contact support assembly is provided, which includes a movable contact and the movable contact support as described above.
The moving contact comprises a contact, a moving contact body and a body supporting seat.
The body supporting seat supports the moving contact body.
The contact is arranged on the moving contact body.
According to the above another aspect of the present disclosure, the body support seat is made of a steel material.
The moving contact body is made of copper.
The contact is made of a silver alloy.
According to another aspect of the disclosure, a positioning pin is disposed on one of the movable contact body and the body support base.
And a positioning hole is arranged on the other one of the moving contact body and the body supporting seat.
The positioning pin is inserted into the positioning hole.
According to the other aspect of the disclosure, a positioning cylinder is arranged in the middle of the body supporting seat.
And the pressure spring for pressing the moving contact is sleeved on the positioning cylinder.
The positioning cylinder is coaxial with the spring positioning convex column of the movable contact support.
According to the above another aspect of the present disclosure, body grooves are provided on both sides of the middle portion of the movable contact body.
And guide ribs are arranged on the side wall of the through hole of the support through hole of the moving contact support.
The guide rib is fitted in the body groove so that the movable contact can move relative to the bracket through hole.
According to another aspect of the present disclosure, the body support seat supports the movable contact body from the bottom surface of the movable contact body and the support buckles extending from the two ends of the body support seat respectively act on the top surface of the movable contact body from the two ends of the movable contact body, thereby holding the movable contact body on the body support seat.
According to another aspect of the present disclosure, the contacts are mounted on the top surface of the movable contact body at both ends of the movable contact body by welding.
Because the body supporting seat is adopted to support the moving contact body, the moving contact body is not easy to deform in the moving process, and the arc stagnation is avoided.
So that the manner in which the disclosure is made in detail herein can be better understood, and in which the contributions to the art may be better appreciated, the disclosure has been summarized rather broadly. There are, of course, embodiments of the disclosure that will be described below and which will form the subject matter of the claims appended hereto.
As such, those skilled in the art will appreciate that the conception upon which this disclosure is based may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present disclosure. It is important, therefore, that the appended claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present disclosure.
Drawings
The present disclosure will be better understood and its advantages will become more apparent to those skilled in the art from the following drawings. The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations and are not intended to limit the scope of the present disclosure.
FIG. 1 illustrates a movable contact support assembly according to the present disclosure;
fig. 2 illustrates a movable contact support according to the present disclosure;
FIG. 3 illustrates an insulating element according to the present disclosure;
FIG. 4 illustrates a spring according to the present disclosure;
figure 5 illustrates a movable contact body according to the present disclosure;
FIG. 6 illustrates a body support seat according to the present disclosure;
fig. 7 illustrates a contact according to the present disclosure.
Detailed Description
Specific embodiments according to the present disclosure are described in detail below with reference to the accompanying drawings.
As shown in fig. 2, according to an embodiment of the present disclosure, a movable contact support 1 is provided, where the movable contact support 1 is configured to hold a movable contact 2 (shown in fig. 2) on the movable contact support 1.
A heat insulation element 3 (shown in fig. 1 and 3) is arranged on the movable contact support 1.
The heat insulation element 3 is used for blocking the heat from the movable contact 2 from transferring to the movable contact support 1.
Such as but not limited to Normax paper. As shown in fig. 3, the insulating element 3 is flat. Also as shown in FIG. 3, mating structures, such as notches, may be provided on the insulating element.
According to the above-mentioned embodiment of the present disclosure, the movable contact support 1 includes the first support portion 4 and the second support portion 5.
There is a smooth transition between the first and second frame parts 4, 5, so that stress concentrations at their connection of the first and second frame parts 4, 5 are avoided. As shown in fig. 1 and 2, the side surfaces of the first rack portion 4 and the second rack portion 5 are contoured in the shape of a wine bottle.
According to the above-described embodiments of the present disclosure, the first bracket portion 4 includes the bracket through hole 6.
The bracket through-hole 6 includes a top surface 6-1 and a bottom surface 6-2 opposite to the top surface 6-1.
The insulating element 3 is disposed on the top surface 6-1 (see fig. 1), such as, but not limited to, by welding. For example, the thermal insulating element can also be arranged on said movable contact support 1 by means of its recess cooperating with a corresponding connection feature arranged in the support through hole 6.
The heat insulation element 3 avoids the direct contact between the movable contact support 1 and the movable contact 2 under the high-temperature condition, so that the transmission of heat from the movable contact 2 to the movable contact support 1 is reduced, and the risk of fracture of the movable contact support 1 due to high temperature is reduced.
The top surface 6-1 is closer to the second shelf portion 5 than the bottom surface 6-2.
According to the above-described embodiment of the present disclosure, the pressure spring 7 is provided in the holder through hole. In fig. 4, the pressure spring 7 is a coil spring.
One end of the pressure spring 7 abuts against the bottom surface 6-2 of the holder through hole 6.
As shown in fig. 1, the other end of the pressure spring 7 presses the movable contact 2 against the insulating element 3.
According to the above-described embodiment of the present disclosure, a spring positioning boss 6-2-1 is provided on the bottom surface 6-2.
One end of the pressure spring 7 is sleeved on the spring positioning convex column 6-2-1.
According to the above described embodiments of the present disclosure, a plurality of grooves 8 arranged in parallel with each other are provided on the second bracket part 5. This advantageously reduces the mass of the movable contact support 1.
The plurality of grooves 8 extend along the length direction of the movable contact support 1.
According to the above-mentioned embodiment of the present disclosure, the movable contact support 1 is made of plastic.
According to the above-described embodiments of the present disclosure, the holder through-hole 6 includes through-hole sidewalls 6-3 opposite to each other.
The smooth transition extends from the through hole side wall 6-3 to the second bracket part 5.
The smooth transition structure avoids stress concentration caused by the structure of the movable contact support 1, and further reduces the risk that the movable contact support 1 is broken (between the first support part 4 and the second support part 5) under high temperature.
Guide ribs 6-3-1 (only one guide rib is shown in fig. 2 for reasons of perspective) are provided on the through-hole side walls 6-3 of the support through-hole 6 of the movable contact support 1.
According to another embodiment of the present disclosure (as shown in fig. 1), a movable contact support assembly is provided, which includes a movable contact 2 and a movable contact support 1 according to the above embodiment.
As shown in fig. 1 and fig. 5 to 7, the movable contact 2 includes a movable contact body 9, a body support base 10 and a contact 11.
The body support base 10 supports the movable contact body 9.
The contact 11 is mounted on the movable contact body 9.
According to the above another embodiment of the present disclosure, the body support seat 10 is made of a steel material. The moving contact body 9 is made of copper. The contact 11 is made of a silver alloy.
According to another embodiment of the present disclosure, a positioning pin 12 is disposed on one of the movable contact body 9 and the body support base 10. For example, in fig. 5, the positioning pin 12 is provided on the intermediate portion of the movable contact body 9 having a flat elongated shape.
And a positioning hole 13 is arranged on the other one of the movable contact body 9 and the body supporting seat 10. For example, in fig. 6, the positioning hole 13 is provided on the middle portion of the body support base 10 in a flat elongated shape.
The positioning pin 12 is inserted into the positioning hole 13, so as to prevent the relative movement between the movable contact body 9 and the body support base 10.
According to another embodiment of the present disclosure, a positioning cylinder 10-1 is disposed in the middle of the body support seat 10.
And a pressure spring 7 for pressing the movable contact is sleeved on the positioning cylinder 10-1, so that the pressure spring 7 is stably pressed against the body supporting seat 10.
The positioning cylinder 10-1 is coaxial with the spring positioning convex column 6-2-1 of the movable contact support 1. The pressure spring 7 can be firmly held in the holder through-hole 6 by the cooperation of the positioning cylinder 10-1 and the spring positioning boss 6-2-1.
According to the above another embodiment of the present disclosure, a body groove 9-1 is provided on both sides of the middle portion of the movable contact body 9.
Guide ribs 6-3-1 (only one guide rib is shown in fig. 2 for reasons of perspective) are provided on the through-hole side walls 6-3 of the support through-hole 6 of the movable contact support 1.
The guide rib 6-3-1 is fitted in the body groove 9-1 so that the movable contact 2 can move relative to the holder through-hole 6.
According to another embodiment of the present disclosure, the body support base 10 supports the movable contact body 9 from the bottom surface 9-3 of the movable contact body 9, and support buckles (not shown) extending from two ends of the body support base 10 respectively act on the top surface 9-2 of the movable contact body 9 from two ends of the movable contact body 9, thereby further facilitating the holding of the movable contact body 9 on the body support base 10.
According to another embodiment of the present disclosure, the contacts 11 are mounted on the top surface 9-2 of the movable contact body 9 by welding at both ends of the movable contact body 9.
Because the body supporting seat is adopted to support the moving contact body, the moving contact body is not easy to deform in the moving process, and the arc stagnation is avoided.
The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the embodiments to the precise form disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of the embodiments.
Even though particular combinations of features are recited in the claims and/or disclosed in the specification, these combinations are not intended to limit the disclosure of the various embodiments. In fact, many of these features may be combined in ways not specifically recited in the claims and/or disclosed in the specification. Although each dependent claim listed below may depend directly on only one claim, the disclosure of various embodiments includes each dependent claim in combination with every other claim in the claim set.
No element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. In addition, as used herein, the articles "a" and "an" are intended to include one or more items, and may be used interchangeably with "one or more". Further, as used herein, the article "the" is intended to include the incorporation of one or more items referenced by the article "the" and may be used interchangeably with "one or more". Further, as used herein, the term "set" is intended to include one or more items (e.g., related items, unrelated items, combinations of related and unrelated items, etc.) and may be used interchangeably with "one or more". Where only one item is intended, the phrase "only one item" or similar language is used. In addition, as used herein, the term "having," variants thereof, and the like are intended to be open-ended terms. Further, the phrase "based on" is intended to mean "based, at least in part, on" unless explicitly stated otherwise. In addition, as used herein, the term "or" when used in series is intended to be inclusive and may be used interchangeably with "and/or" unless specifically stated otherwise (e.g., if used in conjunction with "or" only one of ").
Claims (15)
1. A moving contact support arranged to retain a moving contact on said moving contact support,
a heat insulation element is arranged on the moving contact support;
the heat insulation element is used for blocking the heat from the movable contact to be transmitted to the movable contact support.
2. A movable contact support according to claim 1,
the movable contact support comprises a first support part and a second support part;
a smooth transition structure is provided between the first and second frame portions to avoid stress concentrations at their connection.
3. A movable contact support according to claim 2,
the first bracket portion includes a bracket through hole;
the bracket through-hole includes a top surface and a bottom surface opposite the top surface;
the insulating element is disposed on the top surface;
the top surface is closer to the second bracket portion than the bottom surface.
4. A movable contact support according to claim 3,
a pressure spring is arranged in the support through hole;
one end of the pressure spring abuts against the bottom surface of the support through hole;
the other end of the pressure spring presses the movable contact against the heat insulation element.
5. A movable contact support according to claim 4,
a spring positioning convex column is arranged on the bottom surface;
one end of the pressure spring is sleeved on the spring positioning convex column.
6. A movable contact support according to claim 2,
a plurality of grooves arranged in parallel with each other are provided on the second bracket part; and is
The plurality of grooves extend along the length direction of the movable contact support.
7. A movable contact support according to claim 1,
the moving contact support is made of plastic.
8. A movable contact support according to claim 3,
the bracket through-hole includes through-hole sidewalls opposing each other;
the smooth transition structure extends from the through-hole sidewall to the second leg portion.
9. A movable contact support assembly, characterized in that it comprises a movable contact and a movable contact support according to any one of the preceding claims 1 to 8;
the moving contact comprises a contact, a moving contact body and a body supporting seat;
the body supporting seat supports the moving contact body;
the contact is arranged on the moving contact body.
10. The movable contact support assembly of claim 9,
the body supporting seat is made of steel materials;
the moving contact body is made of copper;
the contact is made of a silver alloy.
11. The movable contact support assembly of claim 9,
one of the moving contact body and the body supporting seat is provided with a positioning pin;
a positioning hole is formed in the other one of the moving contact body and the body supporting seat;
the positioning pin is inserted into the positioning hole.
12. The movable contact support assembly of claim 9,
a positioning cylinder is arranged in the middle of the body supporting seat;
the pressure spring for pressing the moving contact is sleeved on the positioning cylinder;
the positioning cylinder is coaxial with the spring positioning convex column of the movable contact support.
13. The movable contact support assembly of claim 9,
body grooves are arranged on two sides of the middle part of the moving contact body;
a guide rib is arranged on the side wall of the through hole of the support through hole of the moving contact support;
the guide rib is fitted in the body groove so that the movable contact can move relative to the bracket through hole.
14. The movable contact support assembly of claim 9,
the body support base supports the movable contact body from a bottom surface of the movable contact body and support buckles extending from both ends of the body support base respectively act on a top surface of the movable contact body from both ends of the movable contact body, thereby holding the movable contact body on the body support base.
15. The movable contact support assembly of claim 9,
the contacts are mounted on the top surface of the movable contact body at two ends of the movable contact body by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021409572.2U CN212625223U (en) | 2020-07-16 | 2020-07-16 | Moving contact support and moving contact support assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021409572.2U CN212625223U (en) | 2020-07-16 | 2020-07-16 | Moving contact support and moving contact support assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212625223U true CN212625223U (en) | 2021-02-26 |
Family
ID=74707122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021409572.2U Active CN212625223U (en) | 2020-07-16 | 2020-07-16 | Moving contact support and moving contact support assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212625223U (en) |
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2020
- 2020-07-16 CN CN202021409572.2U patent/CN212625223U/en active Active
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