CN209804957U - Crown spring and connector contact pair comprising same - Google Patents
Crown spring and connector contact pair comprising same Download PDFInfo
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- CN209804957U CN209804957U CN201920771638.3U CN201920771638U CN209804957U CN 209804957 U CN209804957 U CN 209804957U CN 201920771638 U CN201920771638 U CN 201920771638U CN 209804957 U CN209804957 U CN 209804957U
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Abstract
The utility model discloses a hat spring and contain connector contact of this hat spring to right. The existing crown spring has high temperature rise value, low plugging service life and large plugging force when the contact pin and the jack are plugged. The broken line type reed of the utility model consists of a first cambered surface sheet, a first plane sheet, a second cambered surface sheet, a second plane sheet, a third cambered surface sheet, a fourth cambered surface sheet, a fifth cambered surface sheet, a sixth plane sheet and a seventh cambered surface sheet which are integrally formed and connected in sequence; the first arc surface piece and the seventh arc surface piece are aligned in the circumferential position of the first ring reed, and the first arc surface piece and the fourth arc surface piece are arranged in a staggered mode in the circumferential position of the first ring reed; the outer convex surfaces of the arc surface piece II, the arc surface piece IV and the arc surface piece VI are all arranged inwards, and the outer convex surfaces of the arc surface piece III and the arc surface piece V are all arranged outwards. The utility model discloses the deformation of broken line type reed is easier than current hat spring, and required the power of closing of inserting is littleer, and it is more smooth and easy to close to insert, has increased the plug life-span of connector, and the temperature rise is also lower during current transmission.
Description
Technical Field
The utility model belongs to the technical field of the electric connector, concretely relates to hat spring and contain connector contact of this hat spring right.
background
Along with the rapid development of the automobile industry and the increased competition of the traditional energy industry, the utilization rate of new energy automobiles is greatly increased. As an important part of new energy vehicles, the market demand for connectors is increasing. The contact pairs are core components in the connector, and the transmission capability of the contact pairs directly determines the transmission power of the electrical connector.
The pins in the contact pairs typically do not make direct hard contact with the inner wall of the receptacle, but rather have resilient contacts mounted at the inner wall of the receptacle. When the contact pin is plugged with the jack, the contact piece is pressed, so that a long-term contact force is formed between the contact pin and the inner wall of the jack, and the connection reliability of the connector is ensured. The contacts that are widely used at present are in the form of leaf springs, which are low in resistance, high in reliability and low in cost, and crown springs, torsion springs and the like are all of this kind. However, in the insertion process of the existing crown spring, because the reed is straight, only one point is contacted with the contact pin, and the insertion force vertically acts on the radial surface of the crown spring, the defects of large contact resistance, high temperature rise value, low insertion and extraction service life, large insertion and extraction force, unreliable insertion and the like exist.
Disclosure of Invention
An object of the utility model is to prior art not enough, provide a hat spring and contain this connector contact of hat spring right for the process of inserting when contact pin and jack are inserted and are closed is more smooth and easy, inserts and closes the power lower, and the plug life-span is longer, and the temperature rise is littleer during current transmission.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
The crown spring of the utility model comprises a first ring reed, a second ring reed and a fold line type reed which are integrally formed; more than three broken line type reeds are uniformly distributed along the circumferential direction of the circular ring reed I; the first ring reed and the second ring reed are both provided with openings; the broken line type reed consists of a cambered surface piece I, a plane piece I, an arc surface piece II, a plane piece II, an arc surface piece III, a plane piece III, an arc surface piece IV, a plane piece IV, a cambered surface piece V, a plane piece V, a cambered surface piece VI, a plane piece VI and an arc surface piece VII which are integrally formed and connected in sequence; the first arc surface piece and the seventh arc surface piece are aligned in the circumferential position of the first ring reed, and the first arc surface piece and the fourth arc surface piece are arranged in a staggered mode in the circumferential position of the first ring reed; the end of the first arc surface sheet, which is not connected with the first plane sheet, is connected with a first circular reed, and the end of the seventh arc surface sheet, which is not connected with the sixth plane sheet, is connected with a second circular reed; the outer convex surfaces of the cambered surface piece II, the cambered surface piece IV and the cambered surface piece VI are all arranged inwards, and the outer convex surfaces of the cambered surface piece III and the cambered surface piece V are all arranged outwards; the inner contact III of the arc surface sheet II, the inner contact II of the arc surface sheet IV and the inner contact I of the arc surface sheet VI are all positioned on the cylindrical surface I, the outer contact of the arc surface sheet III and the outer contact of the arc surface sheet V are all positioned on the cylindrical surface II, and the diameter of the cylindrical surface I is smaller than the inner diameter of the ring reed I and smaller than the inner diameter of the ring reed II; the diameter of the cylindrical surface II is larger than the outer diameter of the ring reed I and is larger than the outer diameter of the ring reed II.
The opening sizes of the first circular ring reed and the second circular ring reed are equal to the circumferential gap of the adjacent fold line type reeds.
The inner diameter of the first circular reed is equal to that of the second circular reed, and the outer diameter of the first circular reed is equal to that of the second circular reed.
The first arc surface piece and the seventh arc surface piece are symmetrically arranged about an arc surface piece, the first plane piece and the sixth plane piece are symmetrically arranged about the arc surface piece, the second arc surface piece and the sixth arc surface piece are symmetrically arranged about the arc surface piece, the second plane piece and the fifth arc surface piece are symmetrically arranged about the arc surface piece, the third arc surface piece and the fifth arc surface piece are symmetrically arranged about the arc surface piece, and the third plane piece and the fourth plane piece are symmetrically arranged about the arc surface piece.
The connector contact pair comprising the crown spring of the utility model comprises a jack and a contact pin; the crown spring is embedded into a ring groove formed in the inner wall of the jack.
The depth of the ring groove is greater than the height of the crown spring.
And under the state that the contact pin is inserted into the jack, the contact pin is simultaneously contacted with a first inner contact of the six cambered surfaces, a second inner contact of the four cambered surfaces and a third inner contact of the two cambered surfaces in the crown spring, and an outer contact of the third cambered surfaces and an outer contact of the five cambered surfaces in the crown spring are simultaneously contacted with the jack.
Compared with the prior art, the utility model discloses the beneficial effect who has:
After the connector contact pair adopting the novel crown spring structure of the utility model is inserted, a plurality of contacts on the inner wall of the crown spring are contacted with the contact pin, so that the axial and radial movement of the contact pin is limited, and the looseness of the crown spring due to vibration is avoided, so that the current transmission is more stable; the fold line type reed of the crown spring has corresponding linkage effect when deformed, so that the force required by plugging is smaller, the plugging is smoother, and the plugging service life of the connector is prolonged; the broken line type reed of the crown spring also enables the transmission distance of the current to be shorter, and the temperature rise during transmission to be lower.
drawings
FIG. 1 is a schematic structural diagram of a conventional crown spring;
FIG. 2 is a schematic diagram of the spring plate force of the existing crown spring;
fig. 3 is a schematic structural view of the crown spring of the present invention;
FIG. 4 is a schematic view of a broken line type spring structure of the crown spring of the present invention;
FIG. 5 is a schematic view of the force applied to the polygonal-line-type spring plate of the crown spring of the present invention;
fig. 6 is a schematic illustration of the insertion of the contact pair of the present invention;
fig. 7 is a cross-sectional view of fig. 6.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 and 2, the spring leaf of the prior crown spring is stressed by a positive pressure F in the inserting processNAnd frictional force FfThe deformation direction of the spring leaves of the crown spring is along the positive pressure FNThe direction and deformation need to resist the internal stress applied by the crown spring material.
As shown in fig. 3 and 4, the crown spring 2 of the present invention includes a first ring spring 201, a second ring spring 215, and a polygonal-line-type spring, which are integrally formed; the inner diameter of the first circular reed is equal to that of the second circular reed, and the outer diameter of the first circular reed is equal to that of the second circular reed; more than three broken line type reeds are uniformly distributed along the circumferential direction of the circular ring reed I; the first circular ring reed and the second circular ring reed are both provided with openings, and the sizes of the openings are equal to the circumferential gaps of the adjacent fold line type reeds; as shown in fig. 5, the zigzag-shaped spring is composed of a first arc surface piece 202, a first plane piece 203, a second arc surface piece 204, a second plane piece 205, a third arc surface piece 206, a third plane piece 207, a fourth arc surface piece 208, a fourth plane piece 209, a fifth arc surface piece 210, a fifth plane piece 211, a sixth arc surface piece 212, a sixth plane piece 213 and a seventh arc surface piece 214 which are integrally formed and connected in sequence; the arc patch one 202 and the arc patch seven 214 are symmetrically arranged about the arc patch four 208; the first arc surface piece 202 and the seventh arc surface piece 214 are aligned at the circumferential position of the first ring reed, and the first arc surface piece 202 and the fourth arc surface piece 208 are arranged in a staggered manner at the circumferential position of the first ring reed; a first plane piece 203 and a sixth plane piece 213 are symmetrically arranged about an arc plane piece four 208, a second arc plane piece 204 and a sixth arc plane piece 212 are symmetrically arranged about the arc plane piece four 208, a second plane piece 205 and a fifth plane piece 211 are symmetrically arranged about the arc plane piece four 208, a third arc plane piece 206 and a fifth arc plane piece 210 are symmetrically arranged about the arc plane piece four 208, and a third plane piece 207 and a fourth plane piece 209 are symmetrically arranged about the arc plane piece four 208; the end of the arc surface piece I202, which is not connected with the plane piece I203, is connected with a ring reed I, and the end of the arc surface piece seven 214, which is not connected with the plane piece six 213, is connected with a ring reed II; the outer convex surfaces of the arc surface patch II 204, the arc surface patch IV 208 and the arc surface patch VI 212 are all arranged inwards, and the outer convex surfaces of the arc surface patch III 206 and the arc surface patch V210 are all arranged outwards; the inner contact III (innermost point) of the arc surface piece II 204, the inner contact II (innermost point) of the arc surface piece IV 208 and the inner contact I (innermost point) of the arc surface piece VI 212 are all positioned on the cylindrical surface I, the outer contact (outermost point) of the arc surface piece III 206 and the outer contact (outermost point) of the arc surface piece V210 are all positioned on the cylindrical surface II, the diameter of the cylindrical surface I is smaller than the inner diameter of the ring reed I, and the diameter of the cylindrical surface II is larger than the outer diameter of the ring reed I; the utility model discloses 2 whole forms of hat spring twist reverse cylindric cage structure.
as shown in fig. 6 and 7, the connector contact pair including the crown spring of the present invention includes a socket 1 and a pin 3; the crown spring 2 is embedded into a ring groove 101 formed in the inner wall of the jack 1, and the depth of the ring groove 101 is larger than the height of the crown spring 2, so that the axial deformation of the crown spring 2 can be accommodated.
as shown in fig. 5 and 7, in the inserting process of the contact pin 3 of the present invention, the contact pin gradually contacts with the first inner contact of the six arc-shaped pieces 212, the second inner contact of the four arc-shaped pieces 208, and the third inner contact of the two arc-shaped pieces 204 in the crown spring 2, and gradually presses the crown spring 2, wherein the force applied to the first inner contact is a positive pressure FN1And frictional force Ff1The force of the inner contact is positive pressure FN2And frictional force Ff2The internal contact point three is stressed by positive pressure FN3And frictional force Ff3The spatial force system is formed. The resultant force of the two adjacent inner contacts drives the outer contact between the two adjacent inner contacts to move towards the circumferential gap of the two adjacent fold line type reeds, and in the moving process, because the first ring reed and the second ring reed are provided with openings, and no material is arranged between the circumferential gaps of the two adjacent fold line type reeds to apply internal stress, the deformation of the fold line type reeds is easier than that of the existing crown spring, the required insertion force is smaller, and the insertion is smoother. After the insertion of the contact pin 3 of the utility model is completed, the contact pin 3 is contacted with the first inner contact of the six arc surface pieces 212, the second inner contact of the four arc surface pieces 208 and the third inner contact of the two arc surface pieces 204 in the crown spring 2 at the same time, and the third outer contact of the three arc surface pieces 206 and the fifth outer contact of the five arc surface pieces 210 in the crown spring 2 are contacted with the jack at the same time due to pressure; crown spring 2 is compressed while applying opposing pressure to socket 1 and pin 3, creating a long lasting contact force.
In the current transmission process, when the existing crown spring structure is adopted, the current on the contact pin is transmitted to the end part of the crown spring from the contact point and then to the jack to complete the transmission process; adopt the utility model discloses a when crown spring 2 carries out current transmission, current on the contact pin 3 is direct to be transmitted to the outer contact between every adjacent two inner contacts through inner contact one, inner contact two and inner contact three by the contact pin on, then directly transmit jack 1, and transmission distance is shorter, and a plurality of inside and outside contacts of accessible transmit, and transmission ability is stronger, and efficiency is higher.
Claims (7)
1. The crown spring comprises a first ring spring, a second ring spring and a fold line type spring which are integrally formed, and more than three fold line type springs are uniformly distributed along the circumferential direction of the first ring spring; the method is characterized in that: the first ring reed and the second ring reed are both provided with openings; the broken line type reed consists of a cambered surface piece I, a plane piece I, an arc surface piece II, a plane piece II, an arc surface piece III, a plane piece III, an arc surface piece IV, a plane piece IV, a cambered surface piece V, a plane piece V, a cambered surface piece VI, a plane piece VI and an arc surface piece VII which are integrally formed and connected in sequence; the first arc surface piece and the seventh arc surface piece are aligned in the circumferential position of the first ring reed, and the first arc surface piece and the fourth arc surface piece are arranged in a staggered mode in the circumferential position of the first ring reed; the end of the first arc surface sheet, which is not connected with the first plane sheet, is connected with a first circular reed, and the end of the seventh arc surface sheet, which is not connected with the sixth plane sheet, is connected with a second circular reed; the outer convex surfaces of the cambered surface piece II, the cambered surface piece IV and the cambered surface piece VI are all arranged inwards, and the outer convex surfaces of the cambered surface piece III and the cambered surface piece V are all arranged outwards; the inner contact III of the arc surface sheet II, the inner contact II of the arc surface sheet IV and the inner contact I of the arc surface sheet VI are all positioned on the cylindrical surface I, the outer contact of the arc surface sheet III and the outer contact of the arc surface sheet V are all positioned on the cylindrical surface II, and the diameter of the cylindrical surface I is smaller than the inner diameter of the ring reed I and smaller than the inner diameter of the ring reed II; the diameter of the cylindrical surface II is larger than the outer diameter of the ring reed I and is larger than the outer diameter of the ring reed II.
2. The crown spring according to claim 1, wherein: the opening sizes of the first circular ring reed and the second circular ring reed are equal to the circumferential gap of the adjacent fold line type reeds.
3. The crown spring according to claim 1, wherein: the inner diameter of the first circular reed is equal to that of the second circular reed, and the outer diameter of the first circular reed is equal to that of the second circular reed.
4. The crown spring according to claim 1, wherein: the first arc surface piece and the seventh arc surface piece are symmetrically arranged about an arc surface piece, the first plane piece and the sixth plane piece are symmetrically arranged about the arc surface piece, the second arc surface piece and the sixth arc surface piece are symmetrically arranged about the arc surface piece, the second plane piece and the fifth arc surface piece are symmetrically arranged about the arc surface piece, the third arc surface piece and the fifth arc surface piece are symmetrically arranged about the arc surface piece, and the third plane piece and the fourth plane piece are symmetrically arranged about the arc surface piece.
5. A connector contact pair comprising the crown spring of claim 1, 2, 3 or 4, including a receptacle and a pin, wherein: the crown spring is embedded into a ring groove formed in the inner wall of the jack.
6. the connector contact pair of claim 5, wherein: the depth of the ring groove is greater than the height of the crown spring.
7. The connector contact pair of claim 5, wherein: and under the state that the contact pin is inserted into the jack, the contact pin is simultaneously contacted with a first inner contact of the six cambered surfaces, a second inner contact of the four cambered surfaces and a third inner contact of the two cambered surfaces in the crown spring, and an outer contact of the third cambered surfaces and an outer contact of the five cambered surfaces in the crown spring are simultaneously contacted with the jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920771638.3U CN209804957U (en) | 2019-05-27 | 2019-05-27 | Crown spring and connector contact pair comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920771638.3U CN209804957U (en) | 2019-05-27 | 2019-05-27 | Crown spring and connector contact pair comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209804957U true CN209804957U (en) | 2019-12-17 |
Family
ID=68833017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920771638.3U Active CN209804957U (en) | 2019-05-27 | 2019-05-27 | Crown spring and connector contact pair comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209804957U (en) |
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2019
- 2019-05-27 CN CN201920771638.3U patent/CN209804957U/en active Active
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