An electrical connector assembly and method for facilitating replacement

Abstract

The application relates to the technical field of electric connectors, in particular to an electric connector device convenient to replace, which comprises a shell, a mounting cavity is arranged at the back side of the shell, an inner frame is fixed in the mounting cavity, the inner frame is divided into multiple mounting spaces, each mounting space is penetrated along an axial direction, and a sub-module is detachably mounted in each mounting space; an installation groove is arranged on the side wall of the inner frame, a gap-eliminating assembly is arranged between the installation groove and the side wall of the sub-module; a sliding channel is further arranged in the side wall of the inner frame, and a double locking assembly is arranged between the back side of the sub-module and the inner frame through the sliding channel. Through the arrangement of the gap-eliminating assembly and the double locking assembly, the rigid gap-eliminating clamping and axial locking can be simultaneously completed when the sub-module is pushed in once, the contact reliability of the connector in a vibration and impact environment is improved, and the problems that the installation gap of the sub-module in the existing modular electric connector cannot be automatically eliminated and the axial locking reliability is insufficient are solved.

Description

Technical Field

[0001] This invention relates to the field of electrical connector technology, and more particularly to an electrical connector device and method that facilitates replacement. Background Technology

[0002] Electrical connectors are critical electrical interconnect components widely used in aerospace, industrial control, and communication equipment. Connectors typically consist of an insulating housing and multiple conductive terminals or contact cores housed within it. Electrical connection between cables is achieved through the mating of a plug and a socket. In practical applications, due to complex working environments, frequent plugging and unplugging, or partial damage to contact units, it is often necessary to repair or replace some contact units within the connector. However, traditional electrical connectors typically employ an integral structure, with all contact units integrated within the same housing, sharing a common fixing structure. Individual disassembly is not possible. If one contact unit fails, the entire connector must be replaced, resulting in the waste of numerous intact contact units, high maintenance costs, and long downtime.

[0003] To address these issues, the industry has gradually proposed a design approach that allows for the individual replacement of contacts within the connector, enabling the replacement of faulty units. However, existing connectors have relatively simple internal contact locking mechanisms with limited reliability. They pose a risk of accidental unlocking under complex operating conditions, particularly in the long-term vibration environments of industrial applications, which can cause contact misalignment. Furthermore, disassembly often requires specialized tools, resulting in inconvenience.

[0004] Chinese invention patent CN110197980B discloses a conductive terminal and an electrical connector. The conductive terminal comprises a main body, a clamping part, and an elastic locking part. After the conductive terminal is pushed into the receiving channel of the housing along the insertion direction, the elastic locking part engages with a locking groove on the bottom wall of the channel, enabling the detachable installation of the conductive terminal. This solution achieves a certain degree of replaceability of the conductive terminal; however, its locking method relies on the elastic deformation of the conductive terminal itself, the locking force is limited by the elasticity of the material, and the unlocking operation requires external tools, making it inconvenient in space-constrained installation environments. Furthermore, this patent does not address the problem of eliminating the gap between the sub-module and the installation channel. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide an easy-to-replace electrical connector device and method. By setting up a gap-eliminating component and a double-locking component, the sub-module can simultaneously complete rigid gap-eliminating clamping and axial locking with a single push. After unlocking, it automatically ejects, thereby improving the contact reliability of the connector under vibration and shock environments, reducing maintenance costs, and enhancing the convenience of disassembly and assembly operations. This solves the problems of the inability to automatically eliminate installation gaps in sub-modules and insufficient axial locking reliability in existing modular electrical connectors.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An easily replaceable electrical connector device includes a housing, a mating cavity on the front side of the housing, and a mounting cavity on the rear side of the housing. An inner frame is fixed inside the mounting cavity, and the inner frame is divided into multiple mounting spaces, each mounting space being axially connected. A sub-module is detachably mounted in each mounting space. At least one contact pin is axially fixed on the sub-module. After the sub-module is installed, the front end of the contact pin is located inside the mating cavity of the housing. The inner frame sidewall is provided with a mounting groove, which is arranged on both sides of each mounting space, with the groove opening facing the inside of the mounting space. A gap elimination component is provided between the mounting groove and the sidewall of the sub-module. A sliding channel is also provided in the inner frame sidewall. The sliding channel is arranged along the axial direction of the outer shell. One end of the sliding channel is connected to the mounting groove to form a through axial channel. The other end of the sliding channel is connected to the rear opening of the inner frame. A double locking assembly is provided between the rear side of the sub-module and the inner frame through the sliding channel.

[0007] Preferably, the gap-eliminating component includes a trapezoidal sliding block installed in the mounting groove and a triangular guide block fixed on the side wall of the submodule. The inclined surface of the triangular guide block is inclined forward along the sliding direction of the submodule. The trapezoidal sliding block has a first inclined surface and a second inclined surface. The first inclined surface is inclined forward along the sliding direction of the submodule. The first inclined surface of the trapezoidal sliding block is close to the inclined surface and slides with it. The second inclined surface is in the opposite direction to the inclined surface. The second inclined surface of the trapezoidal sliding block faces the bottom of the mounting groove. A first spring is radially provided between the second inclined surface and the bottom of the mounting groove. One end of the first spring is fixed to the bottom of the mounting groove, and the other end is fixedly connected to the planar mounting groove of the second inclined surface.

[0008] Preferably, the dual locking assembly includes a sliding rod disposed in the sliding channel and a locking push block fixed to the rear side of the submodule. One end of the sliding rod extends into the mounting groove, and the other end of the sliding rod is movably connected to the locking push block. The sliding channel has vertically symmetrical sliding grooves at one end away from the mounting groove, and the sliding grooves are connected to the sliding channel; a locking spring and a wedge-shaped locking block are installed in the sliding groove, one end of the locking spring is fixed to the bottom wall of the sliding groove, and the other end of the locking spring is fixed to the wedge-shaped locking block. The top of the wedge-shaped locking block extends out of the sliding groove and is provided with a locking slope. The locking slope is inclined in the opposite direction to the sliding direction of the sub-module. The locking push block is fixed to the rear side of the sub-module by a connecting block; the pushing direction of the locking push block is towards the sliding channel, and the locking push block is provided with a trapezoidal locking end; the front plane of the trapezoidal locking end can be pushed to connect with the sliding rod, and the rear plane of the trapezoidal locking end can be abutted and fitted with the wedge-shaped locking block; the locking push block is also fitted with an unlocking push block, and the unlocking push block is slidably disposed on the locking push block.

[0009] Preferably, the sliding rod has a pushing inclined surface at one end that extends into the mounting groove, and the pushing inclined surface slides in cooperation with the second inclined surface of the trapezoidal sliding block; the sliding channel has an enlarged section at one end near the mounting groove, and a limiting ring is also provided on the sliding rod located in the enlarged section. A second spring is provided in the enlarged section, one end of the second spring abuts against the end wall of the enlarged section near the mounting groove, and the other end abuts against the limiting ring.

[0010] Preferably, the submodule is fixed with a slider at the bottom, and the bottom wall of the installation space is provided with a slide rail groove. The submodule is installed in the installation space by sliding cooperation between the slider and the slide rail groove.

[0011] Preferably, the front end of the submodule is provided with a beveled cut surface, and a baffle is provided between the insertion cavity and the mounting cavity of the outer shell. The baffle is provided with an insertion window for each mounting space, and the beveled cut surface and the insertion window are fitted together.

[0012] Preferably, an auxiliary spring is fixed on each of the baffles located on both sides of each plug-in window, and a push plate is fixed at the front end of the submodule corresponding to the position of the auxiliary spring. One end of the auxiliary spring is fixed on the baffle, and the other end of the auxiliary spring can be abutted and connected to the push plate.

[0013] Preferably, the unlocking push block includes a manual end and a pushing end, and the pushing end has small protrusions at its upper and lower ends, and the width between the two small protrusions is not less than the width between the upper and lower ends of the trapezoidal locking end.

[0014] Preferably, the submodule is made of an insulating material.

[0015] The present invention also claims protection for a method of using an easily replaceable electrical connector device, comprising the following steps: S1. Align the sub-module with the rear opening of the corresponding installation space in the inner frame, so that the slider at the bottom of the sub-module is aligned with the slide rail groove on the bottom wall of the installation space. S2. Push the sub-module into the installation space along the axial direction. The inclined surface of the triangular guide block on the side wall of the sub-module contacts and slides with the first inclined surface of the trapezoidal sliding block in the installation groove, converting the axial pushing motion of the sub-module into the lateral movement of the trapezoidal sliding block. The first spring is compressed, and the gap elimination component forms a preliminary elastic clamp on both sides of the sub-module. S3. The submodule continues to be pushed in. The trapezoidal locking end of the latching push block fixed to the rear of the submodule enters the sliding channel. The front plane of the trapezoidal locking end pushes the sliding rod to slide along the sliding channel towards the mounting groove, and the second spring is compressed. The pushing slope of the front end of the sliding rod slides and engages with the second slope of the trapezoidal sliding block, driving the trapezoidal sliding block to move further laterally, so that the first slope and the slope of the triangular guide block are tightly abutted, completing the rigid clamping of both sides of the submodule and eliminating the installation gap. At the same time, the upper and lower slopes of the trapezoidal locking end push the locking slope of the wedge-shaped locking block, overcoming the spring force of the latching spring and causing the wedge-shaped locking block to retract into the sliding groove. The submodule is pushed in, and the trapezoidal locking end completely passes over the wedge-shaped locking block. The wedge-shaped locking block pops out of the sliding groove under the pushing force of the latching spring, and the locking slope abuts and fits against the rear plane of the trapezoidal locking end, completing the axial locking. At this time, the pushing slope of the sliding rod and the second slope of the trapezoidal sliding block are also completely fitted in place at the same time. The rigid clamping and axial locking are completed simultaneously. S4. The oblique cut surface at the front end of the submodule fits against the inner wall of the insertion window, the push plate and the auxiliary spring compress and abut against each other, and the front end of the contact core extends into the insertion cavity, and the installation is completed. S5. When it is necessary to replace the sub-module, push the manual end of the unlocking push block with your finger to push the unlocking push block forward along the locking push block. The two small protrusions on the front side of the push end are inserted into the two sides of the wedge-shaped locking block, and the wedge-shaped locking block is pressed back into the sliding groove. The locking slope is disengaged from the rear end plane of the trapezoidal locking end, and the axial locking of the sub-module is released. S6. After the axial lock is released, the auxiliary spring pushes the push plate at the front end of the submodule, driving the submodule to automatically pop out a predetermined distance in the exit direction; at the same time, the trapezoidal sliding block is laterally reset under the thrust of the first spring, releasing the rigid clamping on the submodule, and the sliding rod is synchronously reset under the thrust of the second spring. S7. Pull the unlocking push block in the exit direction. The two small protrusions on the pushing end abut against the rear end of the trapezoidal locking end, causing the locking push block and sub-module to completely exit the installation space along the slide rail groove, and the disassembly is completed.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) This invention integrates the gap-eliminating component and the double-locking component into the mounting groove and sliding channel on the inner frame sidewall, realizing the linkage between gap-eliminating clamping and axial locking during a single push-in of the submodule. In the initial stage of the submodule push-in, the inclined surface of the triangular guide block and the trapezoidal sliding block converts the axial push-in motion into a lateral clamping force, forming a preliminary elastic clamping on both sides of the submodule under the action of the first spring. As the push-in stroke continues, when the submodule is pushed in place, the locking push block drives the sliding rod to further push the trapezoidal sliding block, completing the rigid gap-eliminating clamping. At the same time, after the trapezoidal locking end passes the wedge-shaped locking block, the locking spring drives the wedge-shaped locking block to automatically pop out and lock. The above two actions are completed synchronously through the stroke design, without the need for additional operation. The contact locking between the wedge-shaped locking block and the rear end plane of the trapezoidal locking end, as well as the lateral fixation of the submodule by the rigid clamping, together constitute a double constraint, improving the installation reliability of the submodule under vibration and impact environment.

[0017] (2) The present invention ensures the motion accuracy of the sub-module being pushed in and out by setting a sliding groove and a slider in the bottom wall of the installation space; at the same time, an auxiliary spring is set, and when unlocking, the wedge-shaped locking block can be pressed down by manually pushing the unlocking push block to release the axial lock. The auxiliary spring will then automatically pop the sub-module out a predetermined distance, and the second spring will synchronously drive the sliding rod to reset. The entire disassembly process does not require the use of external tools, and the operation is simple and the disassembly and assembly efficiency is high. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the electrical connector device of the present invention; Figure 2 This is a schematic diagram of the outer frame and housing of the electrical connector device of the present invention; Figure 3 This is a schematic diagram of the structure of the electrical connector device of the present invention after the outer shell and inner frame are combined; Figure 4 This is a three-dimensional structural diagram of a sub-module of the electrical connector device of the present invention; Figure 5 yes Figure 4 A partially enlarged structural diagram; Figure 6 This is an exploded structural diagram of the electrical connector device of the present invention; Figure 7 This is a rear view structural schematic diagram of the electrical connector device of the present invention; Figure 8 yes Figure 7 A schematic diagram of the AA cross-sectional structure; Figure 9 yes Figure 8 A partially enlarged structural diagram; Figure 10 yes Figure 7 A schematic diagram of the BB cross-sectional structure; Figure 11 yes Figure 10 A partially enlarged structural diagram.

[0019] In the diagram: 100, outer shell; 200, inner frame; 300, sub-module; 400, backlash elimination assembly; 500, double locking assembly; 110, insertion cavity; 120, mounting cavity; 130, baffle; 140, insertion window; 150, auxiliary spring; 210, mounting space; 220, mounting slot; 230, sliding channel; 231, enlarged section; 310, contact ferrule; 320, slide rail groove; 330, oblique cut; 340, push plate; 360, slider; 410, trapezoidal slide. Moving block; 420, triangular guide block; 430, first spring; 440, second spring; 411, first inclined plane; 412, second inclined plane; 421, inclined plane; 510, sliding rod; 520, locking push block; 530, connecting block; 540, sliding groove; 550, locking spring; 560, wedge-shaped locking block; 570, unlocking push block; 511, limiting ring; 521, trapezoidal locking end; 561, locking inclined plane; 571, manual end; 572, pushing end; 573, small convex strip. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention. Furthermore, the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0021] Example 1

[0022] Reference Figure 1-11 An easily replaceable electrical connector device includes a housing 100, a front side of which is a mating cavity 110, and a rear side of which is a mounting cavity 120. An inner frame 200 is fixed inside the mounting cavity 120. The inner frame 200 is divided into multiple mounting spaces 210, each mounting space 210 being axially connected. A sub-module 300 is detachably mounted in each mounting space 210. At least one contact ferrule 310 is axially fixed on the sub-module 300. After the sub-module 300 is installed, the front end of the contact ferrule 310 is located inside the mating cavity 110 of the housing 100. The outer shell 100 is a rectangular shell made of metal or engineering plastic. The front insertion cavity 110 of the outer shell 100 is used for mating with a matching connector, and the rear mounting cavity 120 extends axially for the inner frame 200 to be fixedly installed. The inner frame 200 can be fixed in the mounting cavity 120 by screws or clips. Its interior is evenly divided into multiple independent mounting spaces 210 along the transverse direction. Each mounting space 210 extends axially along the outer shell 100. The sub-module 300 is pushed axially into the corresponding mounting space 210 through the rear opening. At least one contact core 310 is axially fixed on each sub-module 300. The contact core 310 is arranged along the axial direction of the sub-module 300. After the sub-module 300 is installed in place, the front end of the contact core 310 extends into the insertion cavity 110 of the outer shell 100, forming an electrical connection with the corresponding contact of the mating connector; the rear end of the contact core 310 is used to connect wires.

[0023] The inner frame 200 has a mounting groove 220 on its side wall. The mounting groove 220 is arranged on both sides of each mounting space 210, with the groove opening facing the inside of the mounting space 210. A gap elimination component 400 is provided between the mounting groove 220 and the side wall of the sub-module 300. A sliding channel 230 is also provided in the side wall of the inner frame 200. The sliding channel 230 is arranged along the axial direction of the outer shell 100. One end of the sliding channel 230 is connected to the mounting groove 220 to form a through axial channel. The other end of the sliding channel 230 is connected to the rear opening of the inner frame 200. A double locking assembly 500 is provided between the rear side of the submodule 300 and the inner frame 200 through the sliding channel 230.

[0024] The mounting groove 220 on the side wall of the inner frame 200 extends axially, with its opening facing the inside of the mounting space 210. A clearance-eliminating component 400 is disposed between the mounting groove 220 and the side wall of the sub-module 300 to eliminate lateral clearance between the sub-module 300 and the mounting space 210. A sliding channel 230 opened within the side wall of the inner frame 200 is axially arranged along the outer shell 100, with one end connected to the mounting groove 220 and the other end connected to the rear opening of the inner frame 200. The double locking component 500 utilizes this axial channel to achieve axial locking of the sub-module 300 and push-in installation of the sub-module 300. Simultaneously, through linkage with the clearance-eliminating component 400, it also achieves lateral locking of the sub-module 300. Integrating the clearance-eliminating function and the axial locking function within the side wall of the inner frame 200 results in a compact overall structure, with the installation and fixation of the sub-module 300 completed in a single push-in stroke.

[0025] In this embodiment, the gap-eliminating component 400 includes a trapezoidal sliding block 410 installed in the mounting groove 220 and a triangular guide block 420 fixed on the side wall of the sub-module 300. The inclined surface 421 of the triangular guide block 420 is inclined forward along the sliding direction of the sub-module 300. The trapezoidal sliding block 410 has a first inclined surface 411 and a second inclined surface 412. The first inclined surface 411 is inclined forward along the sliding direction of the sub-module 300. The first inclined surface 411 of the trapezoidal sliding block 410 is close to the inclined surface 421 and slides with the inclined surface 421. The second inclined surface 412 is in the opposite direction to the inclined surface 421. The second inclined surface 412 of the trapezoidal sliding block 410 faces the bottom of the mounting groove 220. A first spring 430 is radially provided between the second inclined surface 412 and the bottom of the mounting groove 220. One end of the first spring 430 is fixed to the bottom of the mounting groove 220, and the other end is fixedly connected to the planar mounting groove of the second inclined surface 412.

[0026] The trapezoidal sliding block 410 slides in the mounting groove 220 along the sliding direction perpendicular to the sub-module 300, that is, it slides laterally. The triangular guide block 420 is fixed on the side wall of the sub-module 300 and moves axially together with the sub-module 300.

[0027] The inclined surface 421 of the triangular guide block 420 and the first inclined surface 411 of the trapezoidal sliding block 410 are both inclined forward along the sliding direction of the sub-module 300. The two maintain a sliding fit, so that the axial pushing motion of the sub-module 300 can be continuously converted into the lateral displacement of the trapezoidal sliding block 410 toward the side wall of the sub-module 300.

[0028] The second inclined surface 412 of the trapezoidal sliding block 410 is opposite in direction to the first inclined surface 411 and faces the bottom of the mounting groove 220. The first spring 430 is radially disposed between the second inclined surface 412 and the bottom of the mounting groove 220. One end of the spring is fixed to the bottom of the groove, and the other end is embedded in the planar mounting groove on the second inclined surface 412, so that the trapezoidal sliding block 410 always has an elastic preload force that moves toward the side wall of the submodule 300.

[0029] In the initial stage of pushing in the submodule 300, after the triangular guide block 420 contacts the first inclined surface 411 of the trapezoidal sliding block 410, the trapezoidal sliding block 410 moves laterally under the guidance of the inclined surface, the first spring 430 is compressed, and the gap elimination component 400 forms a preliminary elastic clamp on both sides of the submodule 300, which plays a role in pre-positioning.

[0030] By integrating a flexible gap-eliminating structure within the mounting slot 220, the assembly gap of traditional modular connectors is solved, increasing installation stability. The flexible clamping and subsequent rigid clamping together form a two-stage clamping system, balancing smooth insertion during installation with gap-free fixation after positioning.

[0031] In this embodiment, the dual locking assembly 500 includes a sliding rod 510 disposed in the sliding channel 230 and a locking push block 520 fixed to the rear side of the submodule 300. One end of the sliding rod 510 extends into the mounting groove 220, and the other end of the sliding rod 510 is movably connected to the locking push block 520. The sliding channel 230 has vertically symmetrical sliding grooves 540 at one end away from the mounting groove 220, and the sliding grooves 540 are connected to the sliding channel 230. A locking spring 550 and a wedge-shaped locking block 560 are installed in the sliding groove 540. One end of the locking spring 550 is fixed to the bottom wall of the sliding groove 540, and the other end of the locking spring 550 is fixed to the wedge-shaped locking block 560. The top of the wedge-shaped locking block 560 extends out of the outside of the sliding groove 540 and is provided with a locking slope 561. The locking slope 561 is inclined in the opposite direction to the sliding direction of the sub-module 300. The locking push block 520 is fixed to the rear side of the submodule 300 by the connecting block 530; the pushing direction of the locking push block 520 is towards the sliding channel 230, and the locking push block 520 is provided with a trapezoidal locking end 521; the front plane of the trapezoidal locking end 521 can be pushed to connect with the sliding rod 510, and the rear plane of the trapezoidal locking end 521 can be abutted and fitted with the wedge-shaped locking block 560; the locking push block 520 is also fitted with an unlocking push block 570, and the unlocking push block 570 is slidably disposed on the locking push block 520.

[0032] The sliding rod 510 is disposed within the sliding channel 230 and can slide freely along the axial direction; one end extends into the mounting groove 220 and maintains a linkage relationship with the trapezoidal sliding block 410; the other end is located on the side of the sliding channel 230 near the rear end opening of the inner frame 200, and can contact and push the front plane of the trapezoidal locking end 521 of the locking push block 520. The locking push block 520 is fixed to the rear end side of the sub-module 300 through the connecting block 530, and is pushed in synchronously with the sub-module 300, with its pushing direction facing the sliding channel 230.

[0033] The wedge-shaped locking block 560 is installed inside the sliding groove 540. Under the action of the locking spring 550, its top normally extends outward from the sliding groove 540. The locking ramp 561 is inclined in the opposite direction to the sliding direction of the submodule 300, so that the locking ramp 561 can prevent the trapezoidal locking end 521 from moving in the exit direction, but does not prevent it from passing in the push direction. After the trapezoidal locking end 521 passes the wedge-shaped locking block 560, the wedge-shaped locking block 560 automatically pops out under the push force of the locking spring 550, and its locking ramp 561 abuts and fits against the rear end plane of the trapezoidal locking end 521, completing the axial locking. The unlocking push block 570 is sleeved on the locking push block 520 and can slide axially relative to the locking push block 520 for manually releasing the axial lock.

[0034] The gap-eliminating clamping is achieved by the elastic pressure of the trapezoidal sliding block 410 against the side wall of the sub-module 300, and the axial locking is achieved by the cooperation of the wedge-shaped locking block 560 and the trapezoidal locking end 521. The single push-in stroke of the sub-module 300 is triggered by linkage, without the need for additional operation steps, thus reducing the complexity of the assembly operation.

[0035] In this embodiment, the sliding rod 510 has a pushing inclined surface at one end that extends into the mounting groove 220, and the pushing inclined surface slides in cooperation with the second inclined surface 412 of the trapezoidal sliding block 410; the sliding channel 230 has an enlarged section 231 at one end near the mounting groove 220, and the sliding rod 510 located in the enlarged section 231 is also provided with a limiting ring 511. The enlarged section 231 is provided with a second spring 440, one end of the second spring 440 abuts against the end wall of the enlarged section 231 near the mounting groove 220, and the other end abuts against the limiting ring 511.

[0036] The sliding rod 510 extends into the pushing slope at one end of the mounting groove 220, maintaining a sliding engagement with the second inclined surface 412 of the trapezoidal sliding block 410. When the sliding rod 510 slides along the sliding channel 230 toward the mounting groove 220 under the push of the trapezoidal locking end 521, the pushing slope generates a lateral component force on the second inclined surface 412, driving the trapezoidal sliding block 410 to move further laterally, so that the first inclined surface 411 and the inclined surface 421 of the triangular guide block 420 are tightly abutted, transforming the initial elastic clamping into rigid clamping, eliminating the lateral gap between the submodule 300 and the mounting space 210, further avoiding the problem of spring fatigue and elastic clamping failure caused by long-term vibration environment, and eliminating the gap in lateral movement from the root.

[0037] The enlarged section 231 is located at one end of the sliding channel 230 near the mounting groove 220 to accommodate the limiting ring 511 and the second spring 440. One end of the second spring 440 abuts against the end wall of the enlarged section 231 near the mounting groove 220, and the other end abuts against the limiting ring 511, providing a reset force for the sliding rod 510. At the same time, the cooperation between the limiting ring 511 and the end wall of the enlarged section 231 limits the maximum stroke of the sliding rod 510, preventing it from dislodging from the sliding channel 230.

[0038] It should be noted that when the submodule 300 is pushed into place and the locking ramp 561 abuts against the rear end plane of the trapezoidal locking end 521, the ramp 421 of the triangular guide block 420 and the pushing ramp of the sliding rod simultaneously abut against the ramps on both sides of the trapezoidal sliding block 410, thereby achieving axial locking when the submodule 300 is laterally clamped.

[0039] In this embodiment, a slider 360 is fixed at the bottom of the sub-module 300, and a slide rail groove 320 is provided on the bottom wall of the installation space 210. The sub-module 300 is installed in the installation space 210 through the sliding cooperation between the slider 360 and the slide rail groove 320.

[0040] The slider 360 is fixed to the bottom of the submodule 300 and cooperates with the slide rail groove 320 on the bottom wall of the installation space 210 to guide and prevent deflection, ensuring that the submodule 300 always moves axially during the pushing and pulling process, and avoiding damage to the contact core 310 or the gap elimination component 400 due to lateral force.

[0041] It should be noted that the cross-sections of the sliding groove and the slider are designed to be dovetail-shaped to prevent vertical movement.

[0042] In this embodiment, the front end of the submodule 300 is provided with a beveled cut surface 330, and a baffle 130 is provided between the insertion cavity 110 and the mounting cavity 120 of the outer shell. The baffle 130 is provided with an insertion window 140 for each mounting space 210, and the beveled cut surface 330 and the insertion window 140 are fitted together.

[0043] The oblique cut surface 330 at the front end of the submodule 300 matches the shape of the inner wall of the insertion window 140. When the submodule 300 is pushed into place, the oblique cut surface 330 fits against the inner wall of the insertion window 140, which on the one hand limits the axial position of the submodule 300, and on the other hand provides a certain lateral support through the surface contact between the oblique cut surface 330 and the insertion window 140, thus assisting the gap elimination component 400 in positioning the front end of the submodule 300.

[0044] In this embodiment, an auxiliary spring 150 is fixed on the baffle 130 on both sides of each plug-in window 140. A push plate 340 is fixed at the front end of the submodule 300 corresponding to the position of the auxiliary spring 150. One end of the auxiliary spring 150 is fixed on the baffle 130, and the other end of the auxiliary spring 150 can be abutted and connected to the push plate 340.

[0045] Auxiliary springs 150 are fixed to the baffle 130, with one or two springs on each side corresponding to the insertion window 140, and can abut against the push plate 340 at the front end of the sub-module 300. When the sub-module 300 is pushed into place, the push plate 340 compresses the auxiliary springs 150, and the auxiliary springs 150 always maintain an elastic pushing force on the push plate 340. After unlocking, the auxiliary springs 150 automatically push the sub-module 300 out a predetermined distance in the withdrawal direction through the push plate 340, so that the sub-module 300 has sufficient operating margin, which facilitates subsequent manual removal without having to forcefully move the sub-module 300 in the mounting cavity 120, thus reducing interference with adjacent sub-modules 300.

[0046] It should be noted that the push plate 340 is positioned offset from the triangular guide block 420, and the push plate 340 will not contact the trapezoidal sliding block 410 during installation.

[0047] In this embodiment, the unlocking push block 570 includes a manual end 571 and a push end 572. The push end 572 has small protrusions 573 at its upper and lower ends on the front side. The width between the two small protrusions 573 is not less than the width between the upper and lower ends of the trapezoidal locking end 521.

[0048] The distance between the two small protrusions 573 is not less than the width of the upper and lower ends of the trapezoidal locking end 521, so that when the pushing end 572 moves forward along the locking push block 520, it can smoothly press the wedge-shaped locking blocks 560 at both ends into the sliding groove 540 simultaneously, releasing the axial lock. At the same time, when the contact surface between the two small protrusions 573 is in contact with the locking surface of the trapezoidal locking end 521, the trapezoidal locking end 521 is wrapped between the two small protrusions 573. With the setting of the auxiliary spring, the locking push block 520 and the sub-module 300 are driven to exit the installation space 210 as a whole. The manual end 571 is exposed outside the rear opening of the inner frame 200, which makes it easy for the operator to push and pull directly with their fingers without the need for any tools.

[0049] In this embodiment, the submodule 300 is made of an insulating material.

[0050] The submodule 300 is made of insulating material, such as polyetheretherketone or polyamide, which enables reliable insulation isolation between the contact cores 310 in each installation space 210 through the submodule 300 body, meeting the insulation performance requirements of the connector. At the same time, the insulating submodule 300 is lightweight and easy to disassemble and assemble frequently.

[0051] Example 2

[0052] A method of using the above-mentioned easily replaceable electrical connector device includes the following steps: S1. Align the sub-module 300 with the rear opening of the mounting space 210 corresponding to the inner frame 200, so that the slider 360 at the bottom of the sub-module 300 is aligned with the slide rail groove 320 on the bottom wall of the mounting space 210. S2. The sub-module 300 is pushed into the installation space 210 along the axial direction. The inclined surface 421 of the triangular guide block 420 on the side wall of the sub-module 300 contacts and slides with the first inclined surface 411 of the trapezoidal sliding block 410 in the installation groove 220, converting the axial pushing motion of the sub-module 300 into the lateral movement of the trapezoidal sliding block 410. The first spring 430 is compressed, and the gap elimination component 400 forms a preliminary elastic clamp on both sides of the sub-module 300. S3. Submodule 300 continues to be pushed in. The trapezoidal locking end 521 of the locking push block 520 fixed to the rear side of submodule 300 enters the sliding channel 230. The front plane of the trapezoidal locking end 521 pushes the sliding rod 510 to slide along the sliding channel 230 toward the mounting groove 220, and the second spring 440 is compressed. The pushing slope at the front end of the sliding rod 510 slides and engages with the second slope 412 of the trapezoidal sliding block 410, driving the trapezoidal sliding block 410 to move further laterally, so that the first slope 411 and the slope 421 of the triangular guide block 420 are tightly abutted, completing the rigid clamping of both sides of the submodule 300 and eliminating the installation gap; at the same time... At this time, the upper and lower inclined surfaces of the trapezoidal locking end 521 push the locking inclined surface 561 of the wedge-shaped locking block 560, overcoming the elastic force of the locking spring 550 and causing the wedge-shaped locking block 560 to retract into the sliding groove 540; the sub-module 300 is pushed into place, the trapezoidal locking end 521 completely passes over the wedge-shaped locking block 560, and the wedge-shaped locking block 560 pops out of the sliding groove 540 under the pushing force of the locking spring 550. The locking inclined surface 561 abuts and fits against the rear end plane of the trapezoidal locking end 521, completing the axial locking; at this time, the pushing inclined surface of the sliding rod 510 and the second inclined surface 412 of the trapezoidal sliding block 410 also fit completely into place simultaneously, and the rigid clamping and axial locking double locking are completed simultaneously; S4. The oblique cut surface 330 at the front end of the submodule 300 fits against the inner wall of the insertion window 140, the push plate 340 compresses and abuts against the auxiliary spring 150, and the front end of the contact core 310 extends into the insertion cavity 110, and the installation is completed. S5. When it is necessary to replace the submodule 300, push the manual end 571 of the unlocking push block 570 with your finger, push the unlocking push block 570 forward along the locking push block 520, insert the two small protrusions 573 on the front side of the push end 572 into both sides of the wedge-shaped locking block 560, press the wedge-shaped locking block 560 back into the sliding groove 540, the locking inclined surface 561 disengages from the rear end plane of the trapezoidal locking end 521, and the axial locking of the submodule 300 is released. S6. After the axial lock is released, the auxiliary spring 150 pushes the push plate 340 at the front end of the submodule 300, driving the submodule 300 to automatically pop out a predetermined distance in the exit direction; at the same time, the trapezoidal sliding block 410 is horizontally reset under the thrust of the first spring 430, releasing the rigid clamping of the submodule 300, and the sliding rod 510 is synchronously reset under the thrust of the second spring 440. S7. Pull the unlocking push block 570 in the exit direction. The two small protrusions 573 of the pushing end 572 abut against the rear end of the trapezoidal locking end 521, causing the locking push block 520 and sub-module 300 to completely exit the installation space 210 along the slide rail groove 320, and the disassembly is completed.

[0053] Although the present invention has been disclosed above with reference to embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An easily replaceable electrical connector device, characterized in that: The device includes a housing (100), a front insertion cavity (110) and a rear mounting cavity (120). An inner frame (200) is fixed inside the mounting cavity (120). The inner frame (200) is divided into multiple mounting spaces (210), each mounting space (210) is axially connected, and a sub-module (300) is detachably installed in each mounting space (210). At least one contact core (310) is axially fixed on the sub-module (300). After the sub-module (300) is installed, the front end of the contact core (310) is located inside the insertion cavity (110) of the housing (100). The inner frame (200) has a mounting groove (220) on its side wall. The mounting groove (220) is arranged on both sides of each mounting space (210), with the groove opening facing the inside of the mounting space (210). A gap-eliminating component (400) is provided between the mounting groove (220) and the side wall of the sub-module (300). A sliding channel (230) is also provided in the side wall of the inner frame (200). The sliding channel (230) is arranged axially along the outer shell (100). One end of the sliding channel (230) is connected to the mounting groove (220) to form a through axial channel. The other end of the sliding channel (230) is connected to the rear opening of the inner frame (200). A double locking assembly (500) is provided between the rear side of the submodule (300) and the inner frame (200) through the sliding channel (230). The backlash elimination component (400) includes a trapezoidal sliding block (410) installed in the mounting groove (220) and a triangular guide block (420) fixed to the side wall of the sub-module (300). The inclined surface (421) of the triangular guide block (420) is inclined forward along the sliding direction of the sub-module (300). The trapezoidal sliding block (410) is provided with a first inclined surface (411) and a second inclined surface (412). The first inclined surface (411) is inclined forward along the sliding direction of the sub-module (300). The inclined surface (411) is close to the inclined surface (421) and slides with the inclined surface (421). The second inclined surface (412) is set in the opposite direction to the inclined surface (421). The second inclined surface (412) of the trapezoidal sliding block (410) faces the bottom of the mounting groove (220). A first spring (430) is radially provided between the second inclined surface (412) and the bottom of the mounting groove (220). One end of the first spring (430) is fixed to the bottom of the mounting groove (220), and the other end is fixedly connected to the planar mounting groove of the second inclined surface (412). The dual locking assembly (500) includes a sliding rod (510) disposed in a sliding channel (230) and a locking push block (520) fixed to the rear side of the sub-module (300). One end of the sliding rod (510) extends into the mounting groove (220), and the other end of the sliding rod (510) is movably connected to the locking push block (520). The sliding channel (230) has vertically symmetrical sliding grooves (540) at one end away from the mounting groove (220), and the sliding grooves (540) are connected to the sliding channel (230); a locking spring (550) and a wedge-shaped locking block (560) are installed in the sliding groove (540), one end of the locking spring (550) is fixed to the bottom wall of the sliding groove (540), and the other end of the locking spring (550) is fixed to the wedge-shaped locking block (560). The top of the wedge-shaped locking block (560) extends out of the outside of the sliding groove (540) and is provided with a locking slope (561). The locking slope (561) is inclined in the opposite direction to the sliding direction of the sub-module (300). The locking push block (520) is fixed to the rear side of the sub-module (300) by the connecting block (530); the pushing direction of the locking push block (520) is towards the sliding channel (230), and the locking push block (520) is provided with a trapezoidal locking end (521); the front end plane of the trapezoidal locking end (521) can be pushed to connect with the sliding rod (510), and the rear end plane of the trapezoidal locking end (521) can be abutted and fitted with the wedge-shaped locking block (560); the locking push block (520) is also fitted with an unlocking push block (570), and the unlocking push block (570) is slidably disposed on the locking push block (520).

2. The easily replaceable electrical connector device according to claim 1, characterized in that: The sliding rod (510) has a pushing slope at one end that extends into the mounting groove (220), and the pushing slope slides in cooperation with the second slope (412) of the trapezoidal sliding block (410); the sliding channel (230) has an enlarged section (231) at one end near the mounting groove (220), and the sliding rod (510) located in the enlarged section (231) is also provided with a limiting ring (511). The enlarged section (231) is provided with a second spring (440), one end of the second spring (440) abuts against the end wall of the enlarged section (231) near the mounting groove (220), and the other end abuts against the limiting ring (511).

3. The easily replaceable electrical connector device according to claim 1, characterized in that: The submodule (300) is fixed with a slider (360) at the bottom, and the mounting space (210) is provided with a slide rail groove (320) on the bottom wall. The submodule (300) is installed in the mounting space (210) through the sliding cooperation between the slider (360) and the slide rail groove (320).

4. The easily replaceable electrical connector device according to claim 1, characterized in that: The front end of the submodule (300) is provided with a beveled cut surface (330), and a baffle (130) is provided between the insertion cavity (110) and the mounting cavity (120) of the outer shell. The baffle (130) is provided with an insertion window (140) for each mounting space (210), and the beveled cut surface (330) and the insertion window (140) are fitted together.

5. The easily replaceable electrical connector device according to claim 4, characterized in that: An auxiliary spring (150) is fixed on the baffle (130) on both sides of each plug-in window (140). A push plate (340) is fixed at the front end of the sub-module (300) corresponding to the position of the auxiliary spring (150). One end of the auxiliary spring (150) is fixed on the baffle (130), and the other end of the auxiliary spring (150) can be connected to the push plate (340).

6. The easily replaceable electrical connector device according to claim 1, characterized in that: The unlocking push block (570) includes a manual end (571) and a push end (572). The push end (572) has small protrusions (573) at its upper and lower ends. The width between the two small protrusions (573) is not less than the width between the upper and lower ends of the trapezoidal locking end (521).

7. The easily replaceable electrical connector device according to claim 1, characterized in that: The submodule (300) is made of insulating material.

8. A method of using the easily replaceable electrical connector device according to any one of claims 1 to 7, characterized in that, Includes the following steps: S1. Align the sub-module (300) with the rear opening of the mounting space (210) corresponding to the inner frame (200), so that the slider (360) at the bottom of the sub-module (300) is aligned with the slide rail groove (320) on the bottom wall of the mounting space (210); S2. The sub-module (300) is pushed into the installation space (210) along the axial direction. The inclined surface (421) of the triangular guide block (420) on the side wall of the sub-module (300) contacts and slides with the first inclined surface (411) of the trapezoidal sliding block (410) in the installation groove (220), converting the axial pushing motion of the sub-module (300) into the lateral movement of the trapezoidal sliding block (410). The first spring (430) is compressed, and the backlash elimination component (400) forms a preliminary elastic clamp on both sides of the sub-module (300). S3. Submodule (300) continues to be pushed in, and the trapezoidal locking end (521) of the locking push block (520) fixed on the rear side of submodule (300) enters the sliding channel (230). The front plane of the trapezoidal locking end (521) pushes the sliding rod (510) to slide along the sliding channel (230) towards the mounting groove (220), and the second spring (440) is compressed. The pushing slope at the front end of the sliding rod (510) slides and engages with the second slope (412) of the trapezoidal sliding block (410), driving the trapezoidal sliding block (410) to move further laterally, so that the first slope (411) and the slope (421) of the triangular guide block (420) are tightly abutted, completing the rigid clamping of both sides of the submodule (300) and eliminating the installation gap; At the same time, the upper and lower inclined surfaces of the trapezoidal locking end (521) push the locking inclined surface (561) of the wedge-shaped locking block (560) to overcome the elastic force of the locking spring (550) and cause the wedge-shaped locking block (560) to retract into the sliding groove (540); the sub-module (300) is pushed into place, the trapezoidal locking end (521) completely passes over the wedge-shaped locking block (560), and the wedge-shaped locking block (560) pops out of the sliding groove (540) under the pushing force of the locking spring (550). The locking inclined surface (561) abuts against the rear end plane of the trapezoidal locking end (521) to complete the axial locking; at this time, the pushing inclined surface of the sliding rod (510) and the second inclined surface (412) of the trapezoidal sliding block (410) are also fully engaged in place at the same time, and the rigid clamping and axial locking are completed simultaneously. S4. The oblique cut surface (330) at the front end of the sub-module (300) fits against the inner wall of the plug-in window (140), the push plate (340) and the auxiliary spring (150) are compressed and abutted, and the front end of the contact core (310) extends into the plug-in cavity (110), and the installation is completed. S5. When it is necessary to replace the submodule (300), push the manual end (571) of the unlocking push block (570) with your finger, push the unlocking push block (570) forward along the latch push block (520), insert the two small protrusions (573) on the front side of the push end (572) into the two sides of the wedge-shaped lock block (560), press the wedge-shaped lock block (560) back into the sliding groove (540), the locking slope (561) disengages from the rear end plane of the trapezoidal locking end (521), and the axial locking of the submodule (300) is released. S6. After the axial lock is released, the auxiliary spring (150) pushes the push plate (340) at the front end of the sub-module (300), driving the sub-module (300) to automatically pop out a predetermined distance in the exit direction; at the same time, the trapezoidal sliding block (410) is horizontally reset under the thrust of the first spring (430), releasing the rigid clamping of the sub-module (300), and the sliding rod (510) is synchronously reset under the thrust of the second spring (440); S7. Pull the unlocking push block (570) in the exit direction. The two small protrusions (573) of the push end (572) abut against the rear end of the trapezoidal locking end (521), causing the locking push block (520) and sub-module (300) to completely exit the installation space (210) along the slide rail groove (320), and the disassembly is completed.

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