Miniature connector side down pin connection mechanism

Abstract

The present application aims to provide a micro connector side down needle connection mechanism with non-contact positioning and improved precision through secondary alignment. The present application comprises a base plate, a positioning plate, a conducting assembly, a bearing plate, a plurality of signal connection assemblies and a plurality of clamp groups. The positioning plate is arranged above the base plate and is guided in cooperation with the base plate. The conducting assembly is connected with the base plate. The base plate is provided with a plurality of accommodation grooves. A plurality of signal connection assemblies are arranged on the conducting assembly and are correspondingly limited in cooperation with a plurality of accommodation grooves. The bearing plate is limited in cooperation with the positioning plate. A plurality of clamp groups are correspondingly arranged on the bearing plate. The conducting assembly drives a plurality of signal connection assemblies to reciprocate forward and backward. A plurality of signal connection assemblies are correspondingly conducted in cooperation with a plurality of clamp groups. The present application is applied to the technical field of side down needle connection mechanism.

Description

Technical Field

[0001] This invention relates to the technical field of side pin connection mechanisms, and particularly to a side pin connection mechanism for a miniature connector. Background Technology

[0002] With the miniaturization and precision of battery control components as technology advances, these intricate control parts require performance testing after production. Due to their small size, these components often need to be secured with connecting blocks before being tested with connectors. Existing connectors typically have an inlet angle designed to match the connecting blocks. During installation, the inlet angle automatically guides and positions the connecting blocks. This installation method offers good accuracy when the probe is vertical. However, for side-down needle orientations, the probe must be horizontally positioned. The needle cover, under the influence of gravity and the adapter plate, can easily tilt, causing it to deviate from its initial horizontal position. This can lead to incorrect insertion and connection between the needle block and the product connector, resulting in probes failing to make contact with the product and malfunctioning during testing.

[0003] Chinese patent CN114252665B discloses a test probe module for a micro connector on a circuit board, comprising a test probe assembly, a test top shell, a test core, and a test bottom shell. The test core limits the connection portion of the test piece. When the test PCB / FPC connector is pressed against the test top shell, the connector pushes the test probe assembly towards the side where the test bottom shell is located, without deformation of the test probe assembly itself. The elastic force is provided by a wire bonding spring, whose wires also conduct test signals. The contact resistance between the test probe assembly and the test PCB / FPC connector remains stable. The spring mechanism allows the test probe assembly to extend out of the test top shell during pressing, thus contacting the product for testing. When the probes are set parallel to the horizontal plane, the test top shell is prone to tilting under gravity and the influence of the adapter plate, causing it to deviate from its initial horizontal position. This can easily lead to the test probe assembly failing to contact the product, resulting in false test results. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a micro connector side pin connection mechanism with non-contact positioning and improved accuracy through secondary alignment.

[0005] The technical solution adopted in this invention is as follows: This invention includes a base plate, a positioning plate, a conductive component, a support plate, several signal connection components, and several clamping groups. The positioning plate is disposed above the base plate and guides the base plate. The conductive component is connected to the base plate. The base plate is provided with several clearance grooves. Several signal connection components are disposed on the conductive component and correspondingly limit the clearance grooves. The support plate limits the positioning plate. Several clamping groups are correspondingly disposed on the support plate. The conductive component drives several signal connection components to reciprocate back and forth. Several signal connection components are correspondingly conductively connected to several clamping groups.

[0006] Furthermore, the signal connection assembly includes a fixed base, a flexible conductive plate, a floating plate, a needle plate, a needle plate cover, and a needle seat block. The fixed base is connected to the conductive assembly. The flexible conductive plate is connected to the fixed base via a limiting plate. The fixed base has an opening, and the flexible circuit board is adapted to the opening. The floating plate is floatingly connected to the fixed base. The needle plate has a plurality of probe groups. The needle plate cover has probe holes that mate with the plurality of probe groups and is floatingly connected to the needle plate. The needle seat block is floatingly engaged with the floating plate. The needle plate is fixedly connected to the needle seat block. One end of the plurality of probe groups is connected to the flexible conductive plate, and the other end of the plurality of probe groups contacts the product. The floating plate has two sets of guide rods, and the two sets of guide rods are guided and engaged with the fixture group.

[0007] Furthermore, a plurality of limiting screws and a plurality of first elastic elements are provided between the floating plate and the fixed base. One end of the plurality of limiting screws is fixedly connected to the floating plate, and the other end of the plurality of limiting screws is engaged with the fixed base. The middle section of the plurality of limiting screws has a smooth structure and slides in cooperation with the fixed base. The plurality of first elastic elements are correspondingly arranged around the plurality of limiting screws and press against the floating plate.

[0008] Furthermore, a plurality of second elastic elements are provided between the needle plate cover and the needle plate, and the needle seat block is provided with a plurality of needle seat limiting elements and a plurality of needle seat elastic elements. The plurality of needle seat limiting elements are fixedly connected to the floating plate, and the plurality of needle seat limiting blocks are slidably engaged with the needle seat block. The plurality of second elastic elements are correspondingly sleeved on the plurality of needle seat limiting elements and press against the floating plate.

[0009] Furthermore, the fixture assembly includes a limiting seat, a clamping seat, a pushing block, and a buckle. The limiting seat is fixedly connected to the clamping seat, the pushing block is slidably connected to the clamping seat, and the buckle is rotatably connected to the clamping seat. The limiting seat has a slot that mates with the product, the pushing block has a pushing component that presses against the product, and the clamping seat has two sets of protrusions that are correspondingly fastened to the buckle.

[0010] Furthermore, the buckle is provided with a third elastic element, which engages with the pressing action of the push block, and the push block is provided with a fourth elastic element, which engages with the pressing action of the clamping seat.

[0011] Furthermore, the limiting seat is provided with two sets of guide holes, which are guided and engaged with the signal connection component.

[0012] Furthermore, the conduction assembly includes a conduction plate, a conduction driving device, two sets of slide rails, and several buffer components. One side of each slide rail is slidably connected to the conduction assembly, and the other side of each slide rail is fixedly connected to the base plate. The fixed end of the conduction driving device is fixedly connected to the base plate, and the movable end of the conduction driving device is connected to the conduction plate. Several buffer components are connected to the base plate and slidably cooperate with the conduction plate. Several guide posts are provided on the conduction plate, and the guide posts are correspondingly connected to several sets of signal connection assemblies.

[0013] Furthermore, the base plate is provided with several sets of linear bearings and several base plate guides. The several sets of linear bearings are located at the four corners of the base plate and connected to the positioning plate. The several sets of base plate guides are correspondingly located around the several sets of linear bearings and cooperate with the positioning plate for guidance.

[0014] The beneficial effects of this invention are as follows: When connecting, the product under test is placed in the fixture assembly mounting position, and the fixture assembly is positioned in the corresponding position on the support plate. Subsequently, the external drive mechanism drives the positioning plate, making it close to the base plate and parallel to the position of the signal connection component and the fixture assembly. The guide component drives the signal connection component to move on the base plate and close to the fixture assembly, so that the signal connection component is pre-positioned with the fixture assembly through the guide post. The signal connection component is then positioned and connected by the pin plate cover of the signal connection component and the cavity of the fixture assembly without directly contacting the product's outer shape hole. As the signal connection component continues to move forward, the fixture assembly pushes the signal connection component to connect the probe group with the product under test. The probe group uses a parallel connection of multiple probes to test the product under test, improving the overcurrent capability. At the same time, the design uses a flexible circuit board as the signal transfer and conduction component, which can be bent and rotated to save internal space of the product. The overall structure is more compact and simple, and the multi-station setting is less prone to interference. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is an exploded view of the signal connection component of the present invention;

[0017] Figure 3 yes Figure 2 A magnified view of part A in the middle;

[0018] Figure 4 This is a schematic diagram of the fixture assembly of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the conductive component of the present invention. Detailed Implementation

[0020] like Figure 1 As shown, in this embodiment, the present invention includes a base plate 1, a positioning plate 2, a conductive assembly 3, a support plate 4, several signal connection assemblies 5, and several clamping groups 6. The positioning plate 2 is disposed above the base plate 1 and guides the base plate 1. The conductive assembly 3 is connected to the base plate 1. The base plate 1 is provided with several clearance grooves 7. Several signal connection assemblies 5 are disposed on the conductive assembly 3 and correspondingly limit the clearance grooves 7. The support plate 4 limits the positioning plate 2. Several clamping groups 6 are correspondingly disposed on the support plate 4. The conductive assembly 3 drives several signal connection assemblies 5 to reciprocate back and forth. Several signal connection assemblies 5 are correspondingly conductively connected to several clamping groups 6. The positioning plate 2 is provided with several positioning blocks. Several positioning blocks are chamfered and guide the support plate 4. When the support plate 4 is placed, it is guided and installed on the positioning plate 2 along the chamfer. The support plate 4 is provided with several sets of clearance holes corresponding to the several signal connection assemblies 5. Several signal connection assemblies 5... The probe group passes through several clearance holes from bottom to top. During connection, the product under test is placed in the mounting position of the fixture group 6. The fixture group 6 is positioned in the corresponding position of the carrier plate 4. Then, the external drive mechanism drives the positioning plate 2, making the positioning plate 2 close to the base plate 1 and the signal connection component 5 and the fixture group 6 are parallel. The guide component drives the signal connection component 5 to move on the base plate 1 and close to the fixture group 6, so that the signal connection component 5 is pre-positioned with the fixture group 6 through the guide post. The pin plate cover 505 of the signal connection component 5 and the cavity of the fixture group 6 are positioned and matched, without directly contacting the product's outer shape hole. The signal connection component 5 continues to move forward, and the fixture group 6 pushes the signal connection component 5 to make the probe group 508 connect and conduct with the product under test. The probe group 508 adopts a multi-probe parallel connection method to test the product under test, improving the overcurrent capability. At the same time, the design uses a flexible circuit board as the signal conversion and conduction component, which can be bent and rotated to save internal space of the product. The overall structure is more compact and simple, and the multi-station setting is less prone to interference.

[0021] like Figure 2 As shown, in this embodiment, the signal connection assembly 5 includes a fixed base 501, a flexible conductive plate 502, a floating plate 503, a needle plate 504, a needle plate cover 505, and a needle seat block 506. The fixed base 501 is connected to the conductive assembly 3. The flexible conductive plate 502 is connected to the fixed base 501 through a limiting plate 507. The fixed base 501 has an opening, and the flexible circuit board is adapted to the opening. The floating plate 503 is floatingly connected to the fixed base 501. The needle plate 504 is provided with a plurality of probe groups 508. The needle plate cover 505 is provided with probe holes that mate with the plurality of probe groups 508 and is floatingly connected to the needle plate 504. The needle seat block 506 is floatingly engaged with the floating plate 503. The needle plate 504 is fixedly connected to the needle seat block 506. One end of the plurality of probe groups 508 is connected to the flexible conductive plate 502, and the other end of the plurality of probe groups 508 contacts the product. The floating plate 503 is provided with two sets of guide rods 50. 9. The two sets of guide rods 509 are guided and engaged with the clamp group 6. The lower end of the fixing seat 501 is connected to the adapter cable. The flexible conductive plate 502 is a flexible circuit board, which is lightweight, thin, and can be freely bent and folded. By bending and turning the arrangement, the flexible circuit board is placed in the non-product placement area, saving more space in the signal connection component 5. The overall lightweight structure is simple. The needle block 506 has a needle block hole. The needle plate cover 505 passes through the needle block hole and is pressed and engaged with the clamp group 6. The needle plate cover 505 is provided with The needle plate cover 505 has a C-shaped chamfer, which facilitates the positioning of the needle plate cover 505 and the cavity of the clamp group 6 when close to the clamp group 6. The probe is fixed on the needle plate 504. The needle block seat is floatingly connected to the fixed plate through several needle block elastic elements. The entire needle block seat is in a couple filling position to eliminate the lateral stress of the needle block and prevent the needle plate cover 505 from tilting. The probe group 508 adopts four probe groups 508 connected in parallel. The current overload capacity of a single probe is up to 2.5A, and the combined current is up to 10A. Several sets of spacer probe groups 508 are provided between the two sets of parallel probes.

[0022] like Figure 3As shown, in this embodiment, a plurality of limiting screws 510 and a plurality of first elastic elements 511 are provided between the floating plate 503 and the fixed base 501. One end of the plurality of limiting screws 510 is fixedly connected to the floating plate 503, and the other end of the plurality of limiting screws 510 is engaged with the fixed base 501. The middle section of the plurality of limiting screws 510 has a smooth structure and slides in cooperation with the fixed base 501. The plurality of first elastic elements 511 are correspondingly arranged around the plurality of limiting screws 510 and press against the floating plate 503. The first elastic elements 511 are springs. The floating plate 503, the plurality of first elastic elements 511 and the plurality of limiting screws 510 float and support each other during the pushing process to prevent errors in the dimensional processing of the parts and excessive compression stroke from causing inelastic overpressure on the probe group 508.

[0023] In this embodiment, a plurality of second elastic members 512 are provided between the needle plate cover 505 and the needle plate 504. The needle seat block 506 is provided with a plurality of needle seat limiting members and a plurality of needle seat elastic members. The plurality of needle seat limiting members are fixedly connected to the floating plate 503. The plurality of needle seat limiting blocks are slidably engaged with the needle seat block 506. The plurality of second elastic members 512 are correspondingly sleeved on the plurality of needle seat limiting members and press against the floating plate 503. The second elastic members 512 are springs. The needle plate cover 505 is floatingly connected to the needle plate 504 through the plurality of second elastic members 512, which serves to protect the probe.

[0024] like Figure 4 As shown, in this embodiment, the fixture assembly 6 includes a limiting seat 61, a clamping seat 62, a pushing block 63, and a buckle 64. The limiting seat 61 is fixedly connected to the clamping seat 62, the pushing block 63 is slidably connected to the clamping seat 62, and the buckle 64 is rotatably connected to the clamping seat 62. The limiting seat 61 has a slot for cooperating with the product, the pushing block 63 has a pushing component for pressing and cooperating with the product, the clamping seat 62 has two sets of protrusions 65, and the two sets of protrusions 65 are correspondingly fastened to the buckle 64. The limiting seat 61 has a positioning cavity adapted to the needle block seat, the clamping seat 62 has a slide rail, and the pushing block 63 is slidably engaged with the slide rail. When the pushing block 63 is pushed forward, the buckle 64 is fastened to the protrusions 65 on the clamping seat 62, and the pushing component in the pushing block 63 presses and clamps the product to be tested, preventing displacement during the test.

[0025] In this embodiment, the buckle 64 is provided with a third elastic element 66, which engages with the pressing action of the push block 63. The push block 63 is provided with a fourth elastic element 67, which engages with the clamping seat 62. Both the third elastic element 66 and the fourth elastic element 67 are springs. The third elastic element 66 is configured to keep the buckle 64 in a fastened state, preventing the buckle 64 from loosening due to vibrations in the external testing environment. The fourth elastic element 67 allows the push block 63 to naturally retract after the buckle 64 is loosened, automatically unlocking and facilitating use.

[0026] In this embodiment, the limiting seat 61 is provided with two sets of guide holes, which are guided and engaged with the signal connection component 5.

[0027] like Figure 5 As shown, in this embodiment, the conductive assembly 3 includes a conductive plate 31, a conductive drive device 32, two sets of slide rails 33, and several buffers 34. One side of each set of slide rails 33 is slidably connected to the conductive assembly 3, and the other side of each slide rail is fixedly connected to the base plate 1. The fixed end of the conductive drive device 32 is fixedly connected to the base plate 1, and the movable end of the conductive drive device 32 is connected to the conductive plate 31. Several buffers 34 are connected to the base plate 1 and slidably cooperate with the conductive plate 31. Several guide posts 35 are provided on the conductive plate 31, and the guide posts 35 are correspondingly connected to several sets of signal connection assemblies 5. The conductive drive device 32 is a telescopic cylinder, and the buffers 34 prevent the conductive plate 31 from excessively displacing, which could damage the product under test and the probe assembly 508.

[0028] In this embodiment, the base plate 1 is provided with several sets of linear bearings 8 and several base plate guides 9. The several sets of linear bearings 8 are located at the four corners of the base plate 1 and connected to the positioning plate 2. The several sets of base plate guides 9 are correspondingly located around the several sets of linear bearings 8 and cooperate with the positioning plate 2 for guidance. The linear bearings 8 and the base plate guides 9 enable the positioning plate 2 to rise and fall through an external transfer mechanism, resulting in a simple structure.

[0029] Working principle of the invention:

[0030] During connection, the product under test is placed in the mounting position of the fixture group 6. The push block 63 is pushed to fasten the buckle 64 to the clamp seat 62. The third elastic element 66 applies an upward lifting force to the buckle 64. The protrusion 65 presses the product under test in the test position. Several fixture groups 6 are positioned and installed in the corresponding positions on the carrier plate 4. The external drive mechanism drives the positioning plate 2 to move the positioning plate 2 close to the base plate 1. The signal connection component 5 and the fixture group 6 are parallel. The guide component drives the signal connection component 5 to move on the base plate 1 and close to the fixture group 6, so that the signal connection component 5 is pre-positioned with the guide hole of the fixture group 6 through the guide post. Then, it continues to advance through the pin plate cover 505 of the signal connection component 5 and the cavity of the fixture group 6 for secondary positioning and engagement until the probe needle makes contact with the connector and conducts.

[0031] Although the embodiments of the present invention are described with reference to actual solutions, they do not constitute a limitation on the meaning of the present invention. Modifications to the embodiments and combinations with other solutions based on this specification will be obvious to those skilled in the art.

Claims

1. A side pin connection mechanism for a miniature connector, characterized in that: It includes a base plate (1), a positioning plate (2), a conductive assembly (3), a bearing plate (4), several signal connection assemblies (5), and several clamping groups (6). The positioning plate (2) is located above the base plate (1) and guides the base plate (1). The conductive assembly (3) is connected to the base plate (1). The base plate (1) is provided with several clearance grooves (7). Several signal connection assemblies (5) are all located on the conductive assembly (3) and are correspondingly limited to the clearance grooves (7). The bearing plate (4) is limited to the positioning plate (2). Several clamping groups (6) are correspondingly located on the bearing plate (4). The conductive assembly (3) drives several signal connection assemblies (5) to reciprocate back and forth. Several signal connection assemblies (5) are correspondingly connected to several clamping groups (6). The signal connection assembly (5) includes a fixed base (501), a flexible conductive plate (502), a floating plate (503), a needle plate (504), a needle plate cover (505), and a needle seat block (506). The fixed base (501) is connected to the conductive assembly (3). The flexible conductive plate (502) is connected to the fixed base (501) through a limiting plate (507). The fixed base (501) has an opening, and the flexible conductive plate (502) is adapted to the opening. The floating plate (503) is floatingly connected to the fixed base (501). The needle plate (504) is provided with a plurality of probe groups. (508), the needle plate cover (505) is provided with probe holes that cooperate with a plurality of probe groups (508) and is floatingly connected to the needle plate (504). The needle seat block (506) is floatingly cooperated with the floating plate (503). The needle plate (504) is fixedly connected to the needle seat block (506). One end of the plurality of probe groups (508) is connected to the flexible conductive plate (502). The other end of the plurality of probe groups (508) is in contact with the product. The floating plate (503) is provided with two sets of guide rods (509). The two sets of guide rods (509) are guided and cooperated with the clamp group (6).

2. The micro connector side pin connection mechanism according to claim 1, characterized in that: A plurality of limiting screws (510) and a plurality of first elastic elements (511) are provided between the floating plate (503) and the fixed seat (501). One end of the plurality of limiting screws (510) is fixedly connected to the floating plate (503), and the other end of the plurality of limiting screws (510) is engaged with the fixed seat (501). The middle section of the plurality of limiting screws (510) has a smooth structure and slides in cooperation with the fixed seat (501). The plurality of first elastic elements (511) are correspondingly arranged around the plurality of limiting screws (510) and press against the floating plate (503).

3. The micro connector side pin connection mechanism according to claim 1, characterized in that: A plurality of second elastic members (512) are provided between the needle plate cover (505) and the needle plate (504). The needle seat block (506) is provided with a plurality of needle seat limiting members and a plurality of needle seat elastic members. The plurality of needle seat limiting members are fixedly connected to the floating plate (503). The plurality of needle seat limiting members are slidably engaged with the needle seat block (506). The plurality of second elastic members (512) are correspondingly sleeved on the plurality of needle seat limiting members and press against the floating plate (503).

4. The micro connector side pin connection mechanism according to claim 1, characterized in that: The fixture assembly (6) includes a limiting seat (61), a clamping seat (62), a pushing block (63), and a buckle (64). The limiting seat (61) is fixedly connected to the clamping seat (62), the pushing block (63) is slidably connected to the clamping seat (62), and the buckle (64) is rotatably connected to the clamping seat (62). The limiting seat (61) is provided with a slot to cooperate with the product, the pushing block (63) is provided with a pushing component to press and cooperate with the product, and the clamping seat (62) has two sets of protrusions (65). The two sets of protrusions (65) are corresponding to the buckle (64) and fastened together.

5. The micro connector side pin connection mechanism according to claim 4, characterized in that: The buckle (64) is provided with a third elastic element (66), which is in pressure cooperation with the push block (63). The push block (63) is provided with a fourth elastic element (67), which is in pressure cooperation with the clamping seat (62).

6. The micro connector side pin connection mechanism according to claim 4, characterized in that: The limiting seat (61) is provided with two sets of guide holes, which are guided and engaged with the signal connection component (5).

7. The micro connector side pin connection mechanism according to claim 1, characterized in that: The conductive assembly (3) includes a conductive plate (31), a conductive drive device (32), two sets of slide rails (33), and several buffers (34). One side of the two sets of slide rails (33) is slidably connected to the conductive assembly (3), and the other side of the slide rails (33) is fixedly connected to the base plate (1). The fixed end of the conductive drive device (32) is fixedly connected to the base plate (1), and the movable end of the conductive drive device (32) is connected to the conductive plate (31). Several buffers (34) are connected to the base plate (1) and slide in cooperation with the conductive plate (31). Several guide posts (35) are provided on the conductive plate (31), and several guide posts (35) are connected to several sets of signal connection assemblies (5).

8. The micro connector side pin connection mechanism according to claim 1, characterized in that: The base plate (1) is provided with several sets of linear bearings (8) and several base plate guides (9). The several sets of linear bearings (8) are located at the four corners of the base plate (1) and connected to the positioning plate (2). The several sets of base plate guides (9) are correspondingly located around the several sets of linear bearings (8) and are guided and cooperated with the positioning plate (2).

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