Welding-free connector
By employing a fisheye-structured terminal and anti-reverse post design in the solderless connector, the problem of terminal deformation under thrust is solved, resulting in a more stable electrical connection and extended connector lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-27
AI Technical Summary
The upper and lower terminals of existing solderless connectors are prone to deformation due to pushing force when mating with the conductive holes on the motherboard, which affects the service life of the connector and the stability of the electrical connection.
The upper and lower rows of terminals adopt a fisheye structure, combined with the first and second anti-reverse posts, and are connected to the conductive holes of the motherboard through an interference fit. The anti-reverse posts are used to hold back the terminals that are pushed back by force to prevent deformation.
It effectively prevents terminal deformation and improves the service life of solderless connectors and the stability of electrical connections.
Smart Images
Figure CN224053449U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to connector technical field especially a kind of welding-free connector. BACKGROUND
[0002] In prior art, when connector of non-traditional welding structure is connected with mainboard, generally, fish-eye structure of upper row terminal and lower row terminal respectively is matched with the interference fit of the conductive hole of mainboard, so that upper row terminal and lower row terminal are matched with mainboard to realize characteristic transmission. Since upper row terminal and lower row terminal are retreated under the thrust when matched with the conductive hole of mainboard, deformation is easily generated, which greatly affects the quality of upper row terminal and lower row terminal, and reduces the service life of welding-free connector. SUMMARY
[0003] To solve the above problems, the utility model provides a kind of welding-free connector.
[0004] To achieve the above object, the utility model adopts the following technical scheme: the utility model relates to a kind of welding-free connector, including main body piece, guard plate, several upper row terminals and lower row terminals, the top of main body piece is equipped with first step and second step, the first step is located above the second step, the first step is equipped with several upper row terminal mounting holes, the upper row terminal is respectively installed in upper row terminal mounting hole, the opening of upper row terminal mounting hole is equipped with first stop post on one side, the first stop post is arranged on the same axis with upper row terminal;Second step is equipped with several lower row terminal mounting holes, the lower row terminal is respectively installed in lower row terminal mounting hole, the opening of lower row terminal mounting hole is equipped with second stop post on one side, the second stop post is arranged on the same axis with lower row terminal.The guard plate is installed on the top of main body piece, and the upper row terminal, lower row terminal respectively penetrates guard plate and is exposed to the side of guard plate.
[0005] Preferably, the guard plate includes first inverted table, second inverted table and third inverted table from top to bottom, the length of first inverted table, second inverted table and third inverted table decreases in turn, the second inverted table is equipped with several upper terminal fixing holes, and the third inverted table is equipped with several lower terminal fixing holes.
[0006] Preferably, the second inverted table is equipped with several upper terminal fixing holes, and the third inverted table is equipped with several lower terminal fixing holes, the upper row terminal passes through upper terminal fixing hole and is exposed to the guard plate, and the lower row terminal passes through upper terminal fixing hole and is exposed to the guard plate.
[0007] Preferably, the top of main body piece is equipped with several holding grooves, the bottom of third inverted table is equipped with several holding blocks, when the guard plate is installed on the top of main body piece, the holding block is buckled with holding groove.
[0008] Preferably, the upper row of terminals comprises an upper row of contact segments, an upper row of bent connecting segments, and an upper row of welding segments, the upper row of bent connecting segments comprises a first upper row of connecting segments and a second upper row of connecting segments, the first upper row of connecting segments and the second upper row of connecting segments are bently connected, the other end of the first upper row of connecting segments is connected with the upper row of contact segments, and the other end of the second upper row of connecting segments is connected with the upper row of welding segments.
[0009] Preferably, the second upper row of connecting segments is provided with an upper row of assembly portions protruding from both sides of the second upper row of connecting segments, the first step is provided with an upper row of terminal assembly grooves, the upper row of terminal mounting holes are located in the upper row of terminal assembly grooves, when the upper row of terminals are mounted on the main body, the second upper row of connecting segments are inserted into the upper row of terminal mounting holes, and the upper row of assembly portions are inserted into the upper row of terminal assembly grooves.
[0010] Preferably, the lower row of assembly portions is provided with a lower row of clamping portions protruding from both sides of the second lower row of connecting segments, the width of the lower row of clamping portions is shorter than that of the lower row of assembly portions, when the lower row of terminals are mounted on the main body, the lower row of clamping portions are located in the lower row of terminal mounting holes and are connected with the inner wall of the lower row of terminal mounting holes.
[0011] Preferably, the lower row of terminals comprises a lower row of contact segments, a lower row of bent connecting segments, and a lower row of welding segments, the lower row of bent connecting segments comprises a first lower row of connecting segments and a second lower row of connecting segments, the first lower row of connecting segments and the second lower row of connecting segments are bently connected, the other end of the first lower row of connecting segments is connected with the lower row of contact segments, and the other end of the second lower row of connecting segments is connected with the lower row of welding segments.
[0012] Preferably, the second lower row of connecting segments is provided with a lower row of assembly portions protruding from both sides of the second lower row of connecting segments, the second step is provided with a lower row of terminal assembly grooves, the lower row of terminal mounting holes are located in the lower row of terminal assembly grooves, when the lower row of terminals are mounted on the main body, the second lower row of connecting segments are inserted into the lower row of terminal mounting holes, and the lower row of assembly portions are inserted into the lower row of terminal assembly grooves.
[0013] Preferably, the lower row of assembly portions is provided with a lower row of clamping portions protruding from both sides of the second lower row of connecting segments, the width of the lower row of clamping portions is shorter than that of the lower row of assembly portions, when the lower row of terminals are mounted on the main body, the lower row of clamping portions are located in the lower row of terminal mounting holes and are connected with the inner wall of the lower row of terminal mounting holes.
[0014] The utility model discloses a beneficial effect lies in: the utility model relates to a kind of welding-free connectors, when welding-free connector is coupled with mainboard, the interference fit of the fish eye structure of upper row terminal, lower row terminal is carried out with the conductive hole of mainboard, the first retreat stop post is resisted to the upper row terminal that force retreat, the second retreat stop post is resisted to the lower row terminal that force retreat, to avoid the problem of upper row terminal, lower row terminal retreat deformation by thrust, guarantee the stability of the electrical connection of upper row terminal, lower row terminal, improve the service life of welding-free connector. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the overall structure schematic diagram of the utility model welding-free connector.
[0016] Figure 2 It is the split structure schematic diagram of the utility model welding-free connector.
[0017] Figure 3 It is the structure schematic diagram of the utility model main body.
[0018] Figure 4 It is the structure schematic diagram of the utility model upper row terminal.
[0019] Figure 5 It is the utility model Figure 4 Enlarged schematic view of upper row terminal in A place of the utility model.
[0020] Figure 6 It is the structure schematic diagram of the utility model lower row terminal.
[0021] Figure 7 It is the utility model Figure 6 Enlarged schematic view of lower row terminal in B place of the utility model.
[0022] Figure 8 It is the structure schematic diagram of the utility model guard plate.
[0023] Figure 9 It is the section schematic diagram of the utility model guard plate.
[0024] Figure 10 It is the section schematic diagram of the utility model welding-free connector.
[0025] Figure 11 It is the schematic diagram of the utility model welding-free connector assembly step four.
[0026] Figure 12 It is the schematic diagram of the utility model welding-free connector assembly step five.
[0027] Figure 13 It is the schematic diagram of the utility model welding-free connector assembly step six.
[0028] REFERENCE NUMERALS
[0029] 1, main body; 11, first step; 111, upper row of terminal mounting holes; 112, upper row of terminal assembly grooves; 113, first retreat-stop post; 12, second step; 121, lower row of terminal mounting holes; 122, lower row of terminal assembly grooves; 123, second retreat-stop post; 13, retaining groove;
[0030] 2, guard plate; 21, first inverted platform; 22, second inverted platform; 221, upper terminal fixing hole; 23, third inverted platform; 231, lower terminal fixing hole; 232, retaining block; 2321, inclined surface; 2322, right-angle surface;
[0031] 3, upper row of terminals; 31, upper row of contact segments; 311, first plug-in part; 312, first root; 313, first base; 314, first elastic part; 32, upper row of bent connection segments; 321, first upper row of connection segments; 322, second upper row of connection segments; 3221, upper row of assembly parts; 3222, upper row of clamping parts; 33, upper row of welding segments;
[0032] 4, lower row of terminals; 41, lower row of contact segments; 411, second plug-in part; 412, second root; 413, second base; 414, second elastic part; 42, lower row of bent connection segments; 421, first lower row of connection segments; 422, second lower row of connection segments; 4221, lower row of assembly parts; 4222, lower row of clamping parts; 43, lower row of welding segments. DETAILED DESCRIPTION
[0033] Referring to Figures 1-13 The utility model relates to a welding-free connector, which comprises a main body 1, a guard plate 2, a plurality of upper row of terminals 3 and lower row of terminals 4. The top of the main body 1 is arranged in a stepped manner and comprises a first step 11 and a second step 12. The first step 11 is located above the second step 12. A plurality of upper row of terminal mounting holes 111 are arranged on the first step 11. The upper row of terminals 3 are respectively installed in the upper row of terminal mounting holes 111. A first retreat-stop post 113 is arranged beside the opening of the upper row of terminal mounting holes 111. The first retreat-stop post 113 is arranged on the same axis as the upper row of terminals 3. A plurality of lower row of terminal mounting holes 121 are arranged on the second step 12. The lower row of terminals 4 are respectively installed in the lower row of terminal mounting holes 121. A second retreat-stop post 123 is arranged beside the opening of the lower row of terminal mounting holes 121. The second retreat-stop post 123 is arranged on the same axis as the lower row of terminals 4. The guard plate 2 is installed on the top of the main body 1. The upper row of terminals 3 and the lower row of terminals 4 respectively penetrate through the guard plate 2 and are exposed on the side surface of the guard plate 2.
[0034] The utility model discloses, the upper row terminal 3, lower row terminal 4 are fish eye terminals, when the welding -free connector is coupled with mainboard, the fish eye structure of upper row terminal 3, lower row terminal 4 is interfered with the conduction hole of mainboard, the first retreat -stop post 113 will be forced to retreat upper row terminal 3 and stop, and the second retreat -stop post 123 will be forced to retreat lower row terminal 4 and stop, thereby avoid the problem that upper row terminal 3, lower row terminal 4 are retreated and deformed by thrust, guarantee the quality problem of upper row terminal 3, lower row terminal 4.
[0035] In the embodiment, the upper row terminal 3 includes an upper row contact section 31, an upper row bent connecting section 32 and an upper row welding section 33, and the upper row contact section 31 and the upper row welding section 33 are connected through the upper row bent connecting section 32.
[0036] Further, the upper row contact section 31 includes a first plug-in part 311, a first root part 312, a first base part 313 and a pair of first elastic parts 314, the first elastic parts 314 are in the shape of circular arc, and the first elastic parts 314 are connected to the first plug-in part 311 and the first root part 312 at the two ends, so that the upper row contact section 31 is in the shape of fish eye, and the first base part 313 is connected to the first root part 312.
[0037] Further, the upper row bent connecting section 32 includes a first upper row connecting section 321 and a second upper row connecting section 322, the first upper row connecting section 321 is bently connected to the second upper row connecting section 322, one end of the first upper row connecting section 321 is connected to the first base part 313 of the upper row contact section 31, and the other end of the second upper row connecting section 322 is connected to the upper row welding section 33.
[0038] The second upper row connecting section 322 is provided with an upper row assembly part 3221, the upper row assembly part 3221 protrudes from the two sides of the second upper row connecting section 322, and the upper row assembly part 3221 is arranged close to the first upper row connecting section 321. The lower side of the upper row assembly part 3221 is provided with an upper row clamping part 3222, the upper row clamping part 3222 protrudes from the two sides of the second upper row connecting section 322, and the width of the upper row clamping part 3222 is shorter than the width of the upper row assembly part 3221.
[0039] Further, the first step 11 is provided with a plurality of upper row terminal assembly grooves 112 matched with the shape of the upper row assembly part 3221, and the upper row terminal mounting hole 111 is located in the upper row terminal assembly groove 112.
[0040] When the upper row of terminals 3 is mounted on the main body 1, the first upper row of connecting segments 321 is located above the first step 11, and the first upper row of connecting segments 321 is arranged in alignment with the first retreat-stop column 113. The second upper row of connecting segments 322 is inserted into the upper row of terminal mounting holes 111, at which time the upper row of assembly portions 3221 enter the upper row of terminal assembly grooves 112, which support the upper row of assembly portions 3221, and the upper row of clamping portions 3222 are inside the upper row of terminal mounting holes 111 and are connected in cooperation with the inner walls of the upper row of terminal mounting holes 111, thereby further improving the connection stability of the upper row of terminals 3 and the main body 1.
[0041] In this embodiment, the lower row of terminals 4 includes a lower row of contact segments 41, a lower row of bent connecting segments 42, and a lower row of welding segments 43, and the lower row of contact segments 41 and the lower row of welding segments 43 are connected by the lower row of bent connecting segments 42.
[0042] Further, the lower row of contact segments 41 includes a second insertion portion 411, a second root portion 412, a second base portion 413, and a pair of second elastic portions 414, the second elastic portions 414 are in the shape of a circular arc, and the first and last ends of the two second elastic portions 414 are connected to the second insertion portion 411 and the second root portion 412, respectively, so that the lower row of contact segments 41 is in the shape of a fish eye, and the second base portion 413 is connected to the second root portion 412.
[0043] Further, the lower row of bent connecting segments 42 includes a first lower row of connecting segments 421 and a second lower row of connecting segments 422, the first lower row of connecting segments 421 and the second lower row of connecting segments 422 are bent and connected, the other end of the first lower row of connecting segments 421 is connected to the second base portion 413 of the lower row of contact segments 41, and the other end of the second lower row of connecting segments 422 is connected to the lower row of welding segments 43.
[0044] Among them, the second lower row of connecting segments 422 is provided with a lower row of assembly portions 4221, the lower row of assembly portions 4221 protrudes from both sides of the second lower row of connecting segments 422, and the lower row of assembly portions 4221 is arranged close to the first lower row of connecting segments 421. The lower row of clamping portions 4222 is arranged below the lower row of assembly portions 4221, the lower row of clamping portions 4222 protrudes from both sides of the second lower row of connecting segments 422, and the width of the lower row of clamping portions 4222 is shorter than the width of the lower row of assembly portions 4221.
[0045] Further, the second step 12 is provided with a plurality of lower row of terminal assembly grooves 122 matched with the shape of the lower row of assembly portions 4221, and the lower row of terminal mounting holes 121 is located in the lower row of terminal assembly grooves 122.
[0046] When the lower row terminal 4 is installed on the main body 1, the first lower row connecting section 421 is located above the second step 12, and the second lower row connecting section 422 is arranged in alignment with the second retreat-stop column 123. The second lower row connecting section 422 is inserted into the lower row terminal installation hole 121, at this time, the lower row assembly part 4221 enters the lower row terminal assembly groove 122, the lower row terminal assembly groove 122 supports the lower row assembly part 4221, and meanwhile, the lower row clamping part 4222 is inside the lower row terminal installation hole 121 and is connected with the inner wall of the lower row terminal installation hole 121, thereby further improving the connection stability of the lower row terminal 4 and the main body 1.
[0047] In the embodiment, the guard plate 2 is in the shape of an inverted ladder, and the guard plate 2 comprises a first inverted ladder 21, a second inverted ladder 22 and a third inverted ladder 23 from top to bottom, the lengths of the first inverted ladder 21, the second inverted ladder 22 and the third inverted ladder 23 decrease in turn, the second inverted ladder 22 is provided with a plurality of upper terminal fixing holes 221, and the third inverted ladder 23 is provided with a plurality of lower terminal fixing holes 231.
[0048] When the upper row terminal 3 and the lower row terminal 4 are installed on the main body 1, and the guard plate 2 is installed on the top of the main body 1, the upper row contact section 31 of the upper row terminal 3 passes through the upper terminal fixing hole 221 and is exposed to the guard plate 2, and the upper row contact section 31 of the lower row terminal 4 passes through the upper terminal fixing hole 221 and is exposed to the guard plate 2, at this time, the bottom of the first inverted ladder 21 presses the first upper row connecting section 321 of the upper row terminal 3, and the bottom of the second inverted ladder 22 presses the first lower row connecting section 421 of the lower row terminal 4, thereby further stabilizing the installation stability of the upper row terminal 3 and the lower row terminal 4. The guard plate 2 avoids the problem that the upper row terminal 3 and the lower row terminal 4 are deformed by being pushed and retreating horizontally when being installed on the main plate, and guarantees the quality of the upper row terminal 3 and the lower row terminal 4.
[0049] Further, the top of the main body 1 is provided with a plurality of holding grooves 13, the bottom of the third inverted ladder 23 is provided with a plurality of holding blocks 232, the holding block 232 is in the structure of a right-angled triangle, and the inclined surface 2321 of the holding block 232 faces the main body 1. When the guard plate 2 is installed on the top of the main body 1, after the inclined surface 2321 of the holding block 232 enters the holding groove 13, the right-angled surface 2322 of the holding block 232 is tightly combined with the holding groove 13, so that the guard plate 2 cannot retreat, thereby realizing the fixation of the guard plate 2 on the main body 1.
[0050] The following is the assembly process of the welding-free connector.
[0051] Step one, manufacturing upper layer cutting PIN and lower layer cutting PIN;
[0052] Step two, the upper layer of the cutting PIN, the lower layer of the cutting PIN is bent into shape;
[0053] Step three, cutting the upper layer of the cutting PIN, the lower layer of the cutting PIN forms the upper row of terminals 3, the lower row of terminals 4;
[0054] Step four, the lower row of terminals 4 is riveted into the lower row of terminal mounting holes 121 of the main body 1;
[0055] Step five, the upper row of terminals 3 is riveted into the upper row of terminal mounting holes 111 of the main body 1;
[0056] Step six, the guard plate 2 is installed on the main body 1;
[0057] Step seven, the welding-free connector is finished.
[0058] The utility model relates to a kind of welding-free connector, when welding-free connector is coupled with mainboard, the fish eye structure of the upper row of terminals 3, the lower row of terminals 4 is interfered with the electrically conductive hole of mainboard, the first retreat stop post 113 is resisted to the upper row of terminals 3 after stress recession, the second retreat stop post 123 is resisted to the lower row of terminals 4 after stress recession, to avoid the problem that the upper row of terminals 3, the lower row of terminals 4 are pushed and recession deformation, guarantee the stability of the electrical connection of the upper row of terminals 3, the lower row of terminals 4, improve the service life of welding-free connector.
[0059] The above embodiment is only to describe the preferred embodiment of the utility model, and not to limit the scope of the utility model, on the premise of not departing from the design spirit of the utility model, various deformation and improvement of the technical scheme of the utility model made by the ordinary engineering technical personnel in the art should fall into the protection scope determined by the claim of the utility model.
Claims
1. A solderless connector, characterized in that: The device includes a main body, a protective plate, several upper row terminals, and a lower row terminal. The top of the main body has a first step and a second step, with the first step located above the second step. The first step has several upper row terminal mounting holes, and the upper row terminals are respectively installed in the upper row terminal mounting holes. A first anti-reverse post is provided on one side of the opening of the upper row terminal mounting hole, and the first anti-reverse post is arranged on the same axis as the upper row terminal. The second step has several lower row terminal mounting holes, and the lower row terminals are respectively installed in the lower row terminal mounting holes. A second anti-reverse post is provided on one side of the opening of the lower row terminal mounting hole, and the second anti-reverse post is arranged on the same axis as the lower row terminal. The protective plate is installed on the top of the main body, and the upper row terminals and lower row terminals respectively penetrate the protective plate and are exposed on the side of the protective plate.
2. The solderless connector according to claim 1, characterized in that: The guard plate includes a first inverted platform, a second inverted platform, and a third inverted platform from top to bottom. The lengths of the first inverted platform, the second inverted platform, and the third inverted platform decrease sequentially. The second inverted platform is provided with a number of upper terminal fixing holes, and the third inverted platform is provided with a number of lower terminal fixing holes.
3. A solderless connector according to claim 2, characterized in that: The second inverted platform is provided with a number of upper terminal fixing holes, and the third inverted platform is provided with a number of lower terminal fixing holes. The upper row of terminals passes through the upper terminal fixing holes and is exposed outside the protective plate, and the lower row of terminals passes through the upper terminal fixing holes and is exposed outside the protective plate.
4. A solderless connector according to claim 2, characterized in that: The top of the main body is provided with several retaining grooves, and the bottom of the third inverted platform is provided with several retaining blocks. When the guard plate is installed on the top of the main body, the retaining blocks are snapped into the retaining grooves.
5. A solderless connector according to claim 1, characterized in that: The upper row of terminals includes an upper row of contact sections, an upper row of bent connecting sections, and an upper row of welding sections. The upper row of bent connecting sections includes a first upper row connecting section and a second upper row connecting section. The first upper row connecting section and the second upper row connecting section are bent and connected. The other end of the first upper row connecting section is connected to the upper row contact section of the upper row of contact sections, and the other end of the second upper row connecting section is connected to the upper row welding section.
6. A solderless connector according to claim 5, characterized in that: The second upper row connecting section is provided with an upper row assembly part, which protrudes from both sides of the second upper row connecting section. The first step is provided with an upper row terminal assembly groove, and the upper row terminal mounting hole is located in the upper row terminal assembly groove. When the upper row terminal is installed on the main body, the second upper row connecting section is inserted into the upper row terminal mounting hole, and the upper row assembly part enters the upper row terminal assembly groove.
7. A solderless connector according to claim 6, characterized in that: Below the upper row assembly part is an upper row of retaining spikes. The upper row of retaining spikes protrudes from both sides of the second upper row connecting section. The width of the upper row of retaining spikes is shorter than the width of the upper row assembly part. When the upper row of terminals is installed on the main body, the upper row of retaining spikes is inside the upper row of terminal mounting holes and is connected to the inner wall of the upper row of terminal mounting holes.
8. A solderless connector according to claim 1, characterized in that: The lower row of terminals includes a lower row of contact sections, a lower row of bent connecting sections, and a lower row of welding sections. The lower row of bent connecting sections includes a first lower row connecting section and a second lower row connecting section. The first lower row connecting section and the second lower row connecting section are bent and connected. The other end of the first lower row connecting section is connected to the lower row contact section of the lower row of contact sections, and the other end of the second lower row connecting section is connected to the lower row welding section.
9. A solderless connector according to claim 8, characterized in that: The second lower connecting section is provided with a lower assembly part, which protrudes from both sides of the second lower connecting section. The second step is provided with a lower terminal assembly groove, and the lower terminal mounting hole is located in the lower terminal assembly groove. When the lower terminal is installed on the main body, the second lower connecting section is inserted into the lower terminal mounting hole, and the lower assembly part enters the lower terminal assembly groove.
10. A solderless connector according to claim 9, characterized in that: The lower row assembly part is provided with a lower row of retaining spikes. The lower row of retaining spikes protrudes from both sides of the second lower row connecting section. The width of the lower row of retaining spikes is shorter than the width of the lower row assembly part. When the lower row of terminals is installed on the main body, the lower row of retaining spikes is inside the lower row of terminal mounting holes and is connected to the inner wall of the lower row of terminal mounting holes.