CN215070514U - Square folding spring connector - Google Patents
Square folding spring connector Download PDFInfo
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- CN215070514U CN215070514U CN202121501133.9U CN202121501133U CN215070514U CN 215070514 U CN215070514 U CN 215070514U CN 202121501133 U CN202121501133 U CN 202121501133U CN 215070514 U CN215070514 U CN 215070514U
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- side wall
- spring
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Abstract
The utility model discloses a square folding spring connector, which comprises a contact element, a rectangular hole sleeve formed by curling and a connecting element, wherein the contact element comprises a first reed and a second reed, the first reed comprises a plurality of first elastic pieces and a first through hole, the second reed comprises a plurality of second elastic pieces and a second through hole, the second reed is stacked on the first reed, and the plurality of first elastic pieces and the plurality of second elastic pieces are arranged in a staggered and inserted manner; the first through hole and the second through hole are overlapped; one end of the rectangular hole sleeve is provided with a turned edge, the rectangular hole sleeve is sleeved outside the contact element, and the end part of the first elastic sheet and the end part of the second elastic sheet are inserted into the turned edge; one end of the connecting piece is provided with an inserting strip, and the inserting strip is inserted into the first through hole and the second through hole in sequence to be fixed. The utility model provides a square folding spring connector, the crisscross inserting of first shell fragment of multi-disc and multi-disc second shell fragment is arranged, has increased effective electrically conductive sectional area, has reduced contact resistance, has weakened the heat energy loss, consequently leads to the in-process of carrying the heavy current, and the connector is difficult for generating heat compact structure.
Description
Technical Field
The utility model relates to a heavy current connector technical field especially relates to a square folding spring connector.
Background
With the rapid development of electronic technology, a large number of products gradually tend to be intelligent, and the basis of intelligent control of the products can be realized only by stable and efficient large-current electric energy supply. Therefore, the electrical connector is important as a power supply terminal in a power supply device.
Since the contact used in the electrical connector of the power supply device needs to have the performance of large current load and long plugging life, the conductivity, yield strength and hardness (determining the wear resistance) of any material cannot meet all requirements at the same time, and the data of various materials also have upper limits. Therefore, after long-term use, the following problems occur: the effective conductive sectional area is reduced due to the abrasion and plastic deformation of the contact; the main factors associated with the contact resistance R (Ω) are: a. effective conductor conducting distance L (m), b resistivity p (omega mm) of conductor2Effective conductive cross section area A (mm) of conductor2)。
The corresponding principle expression is as follows:
therefore, under the condition that other parameters are not changed, the effective conductive sectional area A is reduced, and the corresponding contact resistance R is relatively larger. When conducting the heavy current, can produce great internal energy, produce the phenomenon of generating heat of charging promptly, so simple adjustment contact material is difficult to satisfy the user to the reliability of heavy current contact long-time service to and the demand of security.
For example, chinese patent CN201911046624.6 provides a large-tolerance floating connector, which includes an insulating housing and two sets of oppositely disposed conducting strips located in the insulating housing, where the two sets of conducting strips include at least one contact portion formed by bending at least one conducting strip from top to bottom, the contact portion being used for inserting a bus into a jack, a fixing portion for limiting the relative positions of the two conducting strips, a flexible portion for realizing up-and-down floating, and an installation portion extending out of the insulating housing and connected to a printed board or a copper bar; the fixed parts of the two groups of conducting strips are relatively fixed through the sliding blocks to form a conducting strip-sliding block component, when the connector is eccentrically inserted, the conducting strip on one side with strong stress of the conducting strip-sliding block component drives the conducting strip on one side with weak stress to synchronously move through the fixed parts, so that the jack formed by the contact parts of the conducting strips is stable and unchanged, and the two sides of the jack are uniformly stressed. The gap between the elastic sheets of the conducting sheets is undoubtedly reduced by the effective conducting sectional area A, so that the connector can generate heat seriously under the heavy current application scene.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a square folding spring connector is at the in-process that leads to the year heavy current, also is difficult for generating heat.
The utility model discloses a square folding spring connector adopts technical scheme is:
a square folding spring connector comprises a contact element, a rectangular hole sleeve formed by curling and a connecting element, wherein the contact element comprises a first reed and a second reed, the first reed comprises a plurality of first elastic sheets and a first through hole, the second reed comprises a plurality of second elastic sheets and a second through hole, the second reed is stacked on the first reed, and the plurality of first elastic sheets and the plurality of second elastic sheets are arranged in a staggered insertion manner; the first through hole and the second through hole are overlapped; a turned edge is arranged at one end of the rectangular hole sleeve, the rectangular hole sleeve is sleeved outside the contact element, and the end part of the first elastic sheet and the end part of the second elastic sheet are inserted into the turned edge; an inserting strip is arranged at one end of the connecting piece, and the inserting strip is inserted into the first through hole and the second through hole in sequence to be fixed.
Preferably, the extension lines determined by the convex parts of the first elastic sheets are parallel to the extension lines determined by the second elastic sheets.
As the preferred scheme, the rectangular hole sleeve is provided with a limiting piece at one end close to the connecting piece, and the limiting piece is bent to clamp the connecting piece for fixing.
As the preferred scheme, the connecting piece lateral wall is equipped with the breach, spacing piece card is gone into in the breach.
As a preferred scheme, the side wall of the rectangular hole sleeve is provided with a pair of raised clamping pieces.
As the preferred scheme, the connecting piece is of an n-shaped structure, the inserting strips are arranged on the connecting portion of the connecting piece, and two end portions of the connecting piece are provided with inserting pins.
As the preferred scheme, the connecting piece is of an L-shaped structure, the inserting strips are arranged and fixed on the side wall of one side, a cylindrical fixing block is embedded in the side wall of the other side of the connecting piece, and internal threads are arranged on the inner wall of the fixing block.
As the preferred scheme, the connecting piece is of an L-shaped structure, the inserting strip is arranged on and fixed on the side wall of one side, and the side wall of the other side of the connecting piece is provided with the welding wire plate.
Preferably, the connecting piece is of an L-shaped structure, the inserting strip is arranged and fixed on the side wall on one side, and a line pressing groove is formed in the end portion of the side wall on the other side of the connecting piece.
The utility model discloses a square folding spring connector's beneficial effect is: the contact piece comprises a first reed and a second reed, the first reed comprises a plurality of first elastic sheets and a first through hole, the second reed comprises a plurality of second elastic sheets and a second through hole, the second reed is stacked on the first reed, the plurality of first elastic sheets and the plurality of second elastic sheets are arranged in a staggered insertion mode, and the first through hole and the second through hole are overlapped. One end of the rectangular hole sleeve is provided with a turned edge, the rectangular hole sleeve is sleeved outside the contact element, and the end part of the first elastic sheet and the end part of the second elastic sheet are both inserted into the turned edge. One end of the connecting piece is provided with an inserting strip, and the inserting strip is inserted into the first through hole and the second through hole in sequence to be fixed. Because the first elastic sheets and the second elastic sheets are arranged in a staggered and inserted mode, the effective conductive sectional area is increased, the contact resistance is reduced, the heat energy loss is weakened, and therefore the connector is not prone to heating and compact in structure in the process of carrying large current.
Drawings
Fig. 1 is a schematic structural diagram of a square folding spring connector according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a first assembly state of a square folding spring connector according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a second assembled state of a square folding spring connector according to an embodiment of the present invention.
Fig. 4 is a cross-sectional view of a square folding spring connector according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a square folding spring connector according to another embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a square folding spring connector connecting piece according to another embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a square folding spring connector according to another embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a square folding spring connector connecting piece according to the third embodiment of the present invention.
Fig. 9 is a schematic view of a first wire pressing structure of a square folding spring connector according to four embodiments of the present invention.
Fig. 10 is a schematic view of a first pressing line structure of a square folding spring connector according to four embodiments of the present invention.
Fig. 11 is a schematic view of a square folding spring connector according to the embodiment of the present invention cooperating with a second pressing line structure.
Fig. 12 is a schematic view of a second pressing line structure of a square folding spring connector connecting piece according to four embodiments of the present invention.
Detailed Description
The invention will be further elucidated and described with reference to the following embodiments and drawings in which:
the first embodiment is as follows:
referring to fig. 1-3, a square folding spring connector includes a contact 10, a rectangular hole sleeve 20 formed by crimping, and a connecting member 30 a. The card-type connector provided by the embodiment is suitable for single-side contact and double-side contact. The following explanation is made with a double-sided contact structure.
The contact 10 comprises a first reed 11 and a second reed 12, the first reed 11 comprises a plurality of first elastic sheets 111 and a first through hole 112, the second reed 12 comprises a plurality of second elastic sheets 121 and a second through hole 122, the second reed 12 is stacked on the first reed 11, the plurality of first elastic sheets 111 and the plurality of second elastic sheets 121 are arranged in a staggered mode, and the first through hole 112 and the second through hole 122 are overlapped.
In this embodiment, the connecting member 30a is an n-type structure, the connecting portion of the connecting member 30a is provided with a plug strip 31, and two end portions of the connecting member 30a are provided with pins 33. During assembly, the insertion strip 31 of the connecting piece 30a is sequentially inserted into the first through hole 112 and the second through hole 122 for fixation, so that the contact piece 10 formed by stacking and assembling can be pre-fixed, and the first spring plate 11, the second spring plate 12 and the insertion strip 31 are fixed along the first through hole 112 and the second through hole 122 by laser welding. The pins 33 can be inserted into corresponding holes of the circuit board and then fixed by soldering.
The contact piece 10 is located to rectangle hole cover 20 one end is equipped with turn-up 21, and rectangle hole cover 20 cover is outside, and turn-up 21 curls the first shell fragment 111 tip of parcel and the tip of second shell fragment 121, and the effect of direction can be played in the curling bound edge, makes things convenient for the insertion of outside inserted sheet.
Because the plurality of first elastic sheets 111 and the plurality of second elastic sheets 121 of the present embodiment are staggered and inserted, the double-layer wall thickness of the first elastic sheets 111 and the second elastic sheets 121 is optimized to form a single-layer wall thickness, the compactness of the structure is improved, the overall structure is smaller, and the application in a small space environment can be satisfied. Meanwhile, the first elastic sheet 111 and the second elastic sheet 121 are arranged in a staggered and inserted mode, so that the effective conductive sectional area is increased, the contact resistance is reduced, the heat loss is weakened, and the connector is not prone to heating in the process of carrying large current.
Referring to fig. 4, preferably, extension lines defined by the protruding portions of the first elastic pieces 111 and extension lines defined by the second elastic pieces 121 are parallel to each other. Namely, the first elastic sheet 111 forms the first conductive contact area 13, the second elastic sheet 121 forms the second conductive contact area 14, the two linear contact areas are respectively contacted with the different length positions of the external insert, the previous linear contact is optimized to be a surface type contact, in other words, one contact surface is determined on the side wall of the insert by the two linear contact areas, although the contact areas of the two linear contact areas are the same, the stability of the two surface type clamping contacts is far stronger than that of the two linear clamping contacts. The stability of the charging process is remarkably improved.
In this embodiment, a limiting piece 22 is disposed at one end of the rectangular hole sleeve 20 close to the connecting piece 30a, and the limiting piece 22 is bent to clamp and fix the connecting piece 30 a. The contact 10, the rectangular hole housing 20 and the connecting piece 30a are fixed to one body.
Preferably, the sidewall of the connecting member 30a is provided with a notch 32, and the position-limiting piece 22 is clamped in the notch 32, so as to further improve the stability of the fixing structure.
In this embodiment, a pair of raised clamping pieces 23 are disposed on the side walls of the rectangular hole sleeve 20 for clamping the external structure, so that the connector is integrally fixed.
Example two:
referring to fig. 5 and 6, in the present embodiment, on the basis of the first embodiment, the n-type connecting member 30a is replaced by a connecting member 30b having an L-shaped structure, the corresponding inserting bar 31 is fixed on one side wall, a cylindrical fixing block 34 is embedded in the other side wall of the connecting member 30b, and an inner wall of the fixing block 34 is provided with an internal thread. Can be used for the connection of an electrical connector 30b with external threading.
Example three:
referring to fig. 7 and 8, in the present embodiment, on the basis of the second embodiment, the other side wall of the connecting member 30c having the L-shaped structure is replaced by a wire bonding plate 35 that can be riveted or ultrasonically metal-welded.
Example four:
referring to fig. 9-12, in the present embodiment, on the basis of the second embodiment, the other side wall of the L-shaped connecting member 30d is replaced with a wire pressing groove 36 capable of pressing a wire. The structure of the wire pressing groove 36 can also be replaced by a wire pressing cylinder 37, the conducting wire is inserted into the wire pressing cylinder 37, and then the wire pressing cylinder 37 is extruded to deform to fix the conducting wire.
The second, third and fourth embodiments expand various connection fixing structures, can deal with various connection fixing scenes, are convenient for flexible application of users, and greatly enhance the market competitiveness of products.
The utility model provides a square folding spring connector, contact include first reed and second reed, and first reed includes first shell fragment of multi-disc and first through-hole, and the second reed includes multi-disc second shell fragment and second through-hole, and the second reed is folded on first reed, and the crisscross arrangement of multi-disc first shell fragment and multi-disc second shell fragment, first through-hole and the coincidence of second through-hole. One end of the rectangular hole sleeve is provided with a turned edge, the rectangular hole sleeve is sleeved outside the contact element, and the end part of the first elastic sheet and the end part of the second elastic sheet are both inserted into the turned edge. One end of the connecting piece is provided with an inserting strip, and the inserting strip is inserted into the first through hole and the second through hole in sequence to be fixed. Because the first elastic sheets and the second elastic sheets are arranged in a staggered mode, the effective conductive sectional area is increased, the contact resistance is reduced, the heat loss is weakened, and therefore the connector is not prone to heating in the process of carrying large current.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A square folding spring connector is characterized by comprising a contact element, wherein the contact element comprises a first spring plate and a second spring plate, the first spring plate comprises a plurality of first spring plates and a first through hole, the second spring plate comprises a plurality of second spring plates and a second through hole, the second spring plate is stacked on the first spring plate, the first spring plates and the second spring plates are arranged in a staggered and inserted mode, and the first through hole and the second through hole are overlapped;
the terminal of the first elastic sheet and the terminal of the second elastic sheet are inserted into the curled edges;
the connecting piece, connecting piece one end is equipped with the cutting, the cutting inserts first through-hole and second through-hole in proper order and fixes.
2. The connector of claim 1, wherein the extension defined by the protrusion of the first plurality of resilient plates is parallel to the extension defined by the second plurality of resilient plates.
3. The connector of claim 1, wherein the rectangular hole has a stop piece near one end of the connector, and the stop piece is bent to clamp the connector.
4. The connector of claim 3, wherein the side wall of the connecting member has a notch, and the position-limiting piece is engaged in the notch.
5. The connector of any one of claims 1-4, wherein the rectangular grommet sidewall is provided with a pair of raised tabs.
6. The connector of claim 5, wherein the connector is of n-type structure, the insertion strip is disposed on the connecting portion of the connector, and the two ends of the connector are provided with insertion pins.
7. The connector of claim 5, wherein the connecting member is of an L-shaped structure, the insertion strip is fixed on one side wall, a cylindrical fixing block is embedded in the other side wall of the connecting member, and the inner wall of the fixing block is provided with internal threads.
8. The connector of claim 5, wherein the connector is an L-shaped structure, the insert is fixed to one side wall of the connector, and the other side wall of the connector is provided with a wire bonding plate.
9. The connector of claim 5, wherein the connector is an L-shaped structure, the insertion strip is fixed on one side wall, and the end of the other side wall of the connector is provided with a wire pressing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121501133.9U CN215070514U (en) | 2021-07-02 | 2021-07-02 | Square folding spring connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121501133.9U CN215070514U (en) | 2021-07-02 | 2021-07-02 | Square folding spring connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215070514U true CN215070514U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121501133.9U Active CN215070514U (en) | 2021-07-02 | 2021-07-02 | Square folding spring connector |
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| Country | Link |
|---|---|
| CN (1) | CN215070514U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023185271A1 (en) * | 2022-03-31 | 2023-10-05 | 中航光电科技股份有限公司 | Multilayer elastic sheet staggered socket structure and connector |
| WO2024045498A1 (en) * | 2022-08-29 | 2024-03-07 | 中航光电科技股份有限公司 | Chip-type contact element and connector using chip-type contact element |
-
2021
- 2021-07-02 CN CN202121501133.9U patent/CN215070514U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023185271A1 (en) * | 2022-03-31 | 2023-10-05 | 中航光电科技股份有限公司 | Multilayer elastic sheet staggered socket structure and connector |
| WO2024045498A1 (en) * | 2022-08-29 | 2024-03-07 | 中航光电科技股份有限公司 | Chip-type contact element and connector using chip-type contact element |
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