A modular quick-change electrical connector and its assembly method

Abstract

The present invention discloses a modular quick-change electrical connector and an assembly method thereof. The modular quick-change electrical connector includes: a housing for being fixed to a robot arm or a tool, and having a plurality of mounting holes formed therein; an integrated base fixed in the mounting holes through a snap structure; a fixing member for electrically connecting with an external device, the fixing member passing through and being fixed on the integrated base; wherein, pin members or socket members are uniformly and independently detachably mounted on the fixing members on the integrated base, so that a pin assembly or a socket assembly is formed in the mounting holes. The present invention reduces the maintenance difficulty and maintenance cost of the electrical connector and improves the applicable range.

Description

Technical Field

[0001] The present invention relates to the field of electrical connection devices, and particularly to a modular quick-change electrical connector and an assembly method thereof. Background Art

[0002] Electrical connectors are mainly used for circuit connections between cable lines of electrical and electronic devices, between cable lines and devices, to achieve the transmission of low-frequency signals, high-frequency signals, and electrical energy (power). Electrical connectors are indispensable electronic components for various electrical and electronic systems, and are widely used in industries such as aerospace, aviation, nuclear industry, ordnance, ships, electronics, transportation, computers, communications, medical treatment, and oil exploration. The common pin and jack (male and female pins) structural form on electrical connectors is to install the pins and jacks (male and female pins) in a plastic or rubber housing, and wire or press the tails of the pins and jacks (male and female pins). When such a structural form is damaged and needs to be repaired, it is inconvenient to disassemble the pins and jacks (male and female pins), and there may even be a situation where they cannot be disassembled.

[0003] The invention patent with the application number 201820884184.6 discloses a frame combined electrical connector, including a plug assembly and a socket assembly; the plug assembly includes a plug housing and several different jack insulator assemblies, the plug housing has several plug cavities, and each plug cavity accommodates a jack insulator assembly; the socket assembly includes a socket housing and several different pin insulator assemblies, the socket housing has several socket cavities, and each socket cavity accommodates a pin insulator assembly; several socket cavities correspond to several plug cavities one by one, and several different pin insulator assemblies correspond to several different jack insulator assemblies one by one, the socket housing covers the plug housing, and different types of pin insulator assemblies are inserted into the corresponding jack insulator assemblies one by one. This invention patent forms a generalized module assembly by installing the pins and jacks (male and female pins) in a plastic or rubber housing, so that after the pins and jacks (male and female pins) are damaged, the module assembly can be removed and replaced as a whole for repair. However, the user spare parts and repair costs are relatively high, and there is a situation of resource waste.

[0004] The invention patent with the application number 201310050978.4 discloses a plug (B) on the socket side or a plug (S) on the probe side, especially a tool changing system for electrically connecting a tool to a robot hand, which includes a plug housing (1, 2) for fixing on a robot arm or a tool. The plug housing (1, 2) includes at least one contact chamber (10, 20) and at least one accommodation chamber (50, 60), and the accommodation chamber (50, 60) is basically arranged above the contact chamber (10, 20). A connection module (30) can be arranged in the at least one contact chamber (10, 20), and the connection module (30) has conductive elements (7, 70, 71, 72) for connecting to at least one first peripheral device, especially a cable. A wear module (31) can be arranged in the at least one accommodation chamber (50, 60), and the wear module (31) has conductive elements (7, 70, 71, 72) for connecting to a second peripheral device, especially a complementary plug. The conductive elements (7, 70, 71, 72) of the connection module (30) can be connected to the conductive elements (7, 70, 71, 72) of the wear module (31). Through the structural arrangement of the above plug connection device, the invention patent realizes the purpose of replacing each connection channel of the entire plug connection device in the simplest method and manner. However, since both the connection module and the wear module are assembled in an embedded manner and are mainly replaced as a whole during maintenance, it is not conducive to the rational utilization of resources. Summary of the Invention

[0005] The purpose of the present invention is to provide a modular quick-change electrical connector, which reduces the maintenance difficulty and cost of the electrical connector and avoids waste of resources.

[0006] The technical solution adopted by the present invention to solve the above problems is:

[0007] A modular quick-change electrical connector, comprising:

[0008] A housing for fixing on a robot arm or a tool, and several mounting holes are provided thereon;

[0009] An integrated base fixed in the mounting hole through a snap structure;

[0010] A fixing member for electrically connecting to an external device, and the fixing member passes through and is fixed on the integrated base;

[0011] Wherein, a pin member or a socket member is uniformly and independently detachably mounted on the fixing member on the integrated base, so that a pin assembly or a socket assembly is formed in the mounting hole.

[0012] As a further improvement of the above technical solution, an insulating cover is installed in the mounting hole through a snap structure. The insulating cover covers the fixing member on the integrated base, and the cavity of the insulating cover is divided into several receiving cavities for receiving the fixing members on the integrated base by a partition member. The pin member or socket member is located between the fixing member and the insulating cover. An insertion opening for the tip of the pin member to pass through or an insertion opening communicating with the insertion hole of the socket member is provided on the insulating cover. Since the insulating cover covers the integrated base and the insulating cover is provided with receiving cavities for receiving the fixing members on which the pin member or socket member is installed, when it is necessary to repair the pin assembly or socket assembly in the mounting hole, only the insulating cover needs to be removed from the mounting hole, and then the pin member or socket member installed on the fixing member can be replaced and repaired. At the same time, through the setting of the insulating cover, the exposure of the pin member or socket member is avoided, which is beneficial to ensuring the safety of the docking operation of the electrical connector. And in combination with the setting of the insertion opening and the receiving cavity on the insulating cover, it is beneficial to guide the tip of the pin member to insert into the insertion hole of the corresponding socket member during docking, which is beneficial to ensuring the smoothness and accuracy of the docking of the electrical connector and restricting the displacement of the pin member or socket member on the fixing member, thus ensuring the use of the electrical connector and improving the safety of the use of the electrical connector.

[0013] As a further improvement of the above technical solution, a first slot for the pin member or socket member to be inserted and threadedly connected is provided at the inner end of the fixing member.

[0014] As a further improvement of the above technical solution, a plurality of clamping pieces arranged at equal angles around the central axis of the first slot are integrally connected to the opening edge of the first slot. A first channel for the pin member or socket member to pass through is formed between the clamping pieces. The first channel is in the shape of an inverted frustum along the insertion direction of the pin member or socket member inserted therein. Both the pin member and the socket member are provided with insertion post portions adapted to the first channel. When the pin member or socket member is fixed to the fixing member, the side wall surface of the insertion post portion is in contact with the side wall surface of the first channel. During installation, during the process of inserting the pin member or socket member into the first slot and fixing it in a threaded connection manner, the insertion post portion will gradually move into the first channel, so that the inner side surface of the clamping piece will gradually be in contact with the outer side surface of the insertion post portion, thereby ensuring the conductive effect between the fixing member and the pin member and the socket member. At the same time, due to the detachable installation of the pin member or socket member on the fixing member, it is convenient to directly remove the pin member or socket member from the fixing member during subsequent maintenance and replacement, reducing the maintenance difficulty and being beneficial to improving work efficiency.

[0015] As a further improvement of the above technical solution, a second slot for the electrical connector on the external device to be inserted and fixed is provided at the outer end of the fixing member, which improves the convenience of connecting the external device to the electrical connector.

[0016] As a further improvement of the above technical solution, the integrated base includes a clamping base and a fixing base. The clamping base and the fixing base are fixed through a snap structure. Opposite positions on the clamping base and the fixing base are respectively provided with a first through hole and a second through hole, and the first through hole and the second through hole are communicated. A number of elastic clamping pieces are arranged on the first through hole at equal angles around the central axis of the first through hole. A second channel for the fixing piece to pass through is formed between the elastic clamping pieces. The second channel is arranged in a frustum shape along the passing direction of the fixing piece therein. The fixing piece is provided with a guiding portion adapted to the second channel. An annular clamping groove is formed on the outer wall surface of the fixing piece. When the fixing piece is fixed on the integrated base, the elastic clamping pieces are clamped in the annular clamping groove. During installation, when the inner end of the fixing piece passes through the second through hole, the first through hole and the second channel in sequence, the inner end of the fixing piece will push open the elastic clamping pieces, so that the inner end of the fixing piece can pass through the second channel. And during the process of the fixing piece passing through the second channel, the elastic clamping pieces will fall into the annular clamping groove, so that the elastic clamping pieces clamp the fixing piece, realizing the fixing of the fixing piece on the integrated base and preventing the fixing piece from falling off the integrated base. The structure is compact and the installation is convenient.

[0017] As a further improvement of the above technical solution, the cross-section of the first through hole is circular, and the cross-section of the second through hole is a rounded triangle. The fixing piece is provided with a limiting portion with a cross-section of a rounded triangle. When the fixing piece is fixed on the integrated base, the side wall surface of the limiting portion is attached to the wall surface of the second through hole, ensuring the installation of the pin piece or socket piece on the fixing piece and avoiding affecting the installation efficiency of the pin piece or socket piece thereon due to the rotation of the fixing piece.

[0018] As a further improvement of the above technical solution, a first through hole and a second through hole are arranged vertically on the side surface of the limiting portion. The first through hole is communicated with the first slot, and the second through hole is communicated with the second slot. A third through hole is formed on the side surface of the socket piece, and the third through hole is communicated with the jack. Through the arrangement of the first through hole, the second through hole and the third through hole, it is beneficial to the heat dissipation between the fixing piece, the pin piece and the socket piece, avoiding damage to the clamping base and the insulating cover due to too high temperature.

[0019] As a further improvement of the above technical solution, the housing is provided with inserting ring pieces or sleeve ring pieces around single or multiple mounting holes. When the electrical connectors are docked, positioning docking can be carried out through the cooperation of the inserting ring pieces and sleeve ring pieces on both of them, so as to ensure the smoothness and accuracy of the connection. And after the docking is completed, the inserting ring pieces and sleeve ring pieces can protect the connection part between the electrical connectors, thus playing a role in dust prevention and moisture prevention and improving the use safety. There are side gaps between the inserting ring pieces and the insulating cover or between the sleeve ring pieces and the insulating cover, reducing the difficulty of removing the insulating cover from the housing during maintenance.

[0020] As a further improvement of the above technical solution, the mounting holes on the housing are arranged in a triangular pattern.

[0021] As a further improvement of the above technical solution, the housing is provided with an extended spacer for surrounding and separating the mounting holes arranged side by side in a row, and an extended piece for surrounding a single mounting hole.

[0022] As a further improvement of the above technical solution, the housing is made of electrical insulating material, which is beneficial to ensuring the safety of the use of the electrical connector. The fixing member is made of ordinary copper alloy material, which is beneficial to reducing the manufacturing cost. The pin member and the socket member are both made of wear-resistant copper alloy material, which is beneficial to improving the service life.

[0023] As a further improvement of the above technical solution, both the insulating cover and the integrated base are made of elastic and electrically insulating materials, which reduces the assembly and disassembly difficulties of the insulating cover and the integrated base on the housing.

[0024] As a further improvement of the above technical solution, the outer end of the socket is provided with a flared structure.

[0025] The present invention also provides a method for assembling the modular quick-change electrical connector described in any one of the above technical solutions, which is characterized in that first, the fixing member is inserted through and fixed on the integrated base, then the integrated base is fixed in the mounting hole on the housing through a snap structure, and then the pin member or the socket member is uniformly and independently detachably installed on the fixing member on the integrated base, so that a pin assembly or a socket assembly is formed in the mounting hole.

[0026] Compared with the prior art, the present invention has the following advantages and effects:

[0027] Through the arrangement of the integrated base and the fixing member, combined with the installation method of the pin member and the socket member on their corresponding fixing members, when the pin member or the socket member is damaged, it can be quickly repaired by replacement, reducing the repair difficulty and cost, improving the repair efficiency and being beneficial to ensuring the utilization rate of each component on the electrical connector, avoiding resource waste, and thus controlling the use cost. At the same time, since the plug on the socket side or the pin side is formed by installing the pin member or the socket member on the fixing member on the electrical connector, the degree of component generalization is high, which is beneficial to reducing the spare part cost and avoiding waste, and the electrical connector can be used as a modular unit in modular products, which is beneficial to the derivative expansion of the products, and thus improves the market coverage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic top view of the docking state perspective one of a modular quick-change electrical connector of the present invention.

[0029] Figure 2It is a schematic bottom view of the docking state of a modular quick-change electrical connector according to the second perspective of the present invention.

[0030] Figure 3 It is Figure 1 a schematic diagram of the internal structure 1 of the housing shown in

[0031] Figure 4 It is Figure 1 a schematic diagram of the internal structure 2 of the housing shown in

[0032] Figure 5 It is Figure 3 a schematic diagram of the structure of the pin assembly shown in

[0033] Figure 6 It is Figure 5 a schematic sectional view of the longitudinal structure 1 of the pin assembly shown in

[0034] Figure 7 It is Figure 5 a schematic sectional view of the longitudinal structure 2 of the pin assembly shown in

[0035] Figure 8 It is Figure 4 a schematic diagram of the structure of the socket assembly shown in

[0036] Figure 9 It is Figure 8 a schematic sectional view of the longitudinal structure 1 of the socket assembly shown in

[0037] Figure 10 It is Figure 8 a schematic sectional view of the longitudinal structure 2 of the socket assembly shown in

[0038] Figure 11 It is Figure 8 a schematic diagram of the structure between the integrated base and the fixing member shown in

[0039] Figure 12 It is Figure 11 a schematic diagram of the structure of the integrated base shown in

[0040] Figure 13 It is Figure 12 a schematic sectional view of the structure of the integrated base shown in

[0041] Among them, there are a housing 1, a mounting hole 11, an insertion ring piece 12, a sleeve ring piece 13, a gap 14, an extension partition piece 15, an extension piece 16, an integrated base 2, a clamping base 21, a fixing base 22, a first through hole 23, a second through hole 24, an elastic clip piece 25, a second channel 26, a fixing member 3, a first slot 31, a clip piece 32, a first channel 33, a second slot 34, an annular clamping groove 35, a pin assembly 4, a pin member 41, a pin tip 42, a socket assembly 5, a socket member 51, a jack 52, a third through hole 53, an insulating cover 6, a partition member 61, a receiving cavity 62, a socket 63, a flared structure 64, a plug post portion 71, a guiding portion 72, a limiting portion 73, a first through hole 74, a second through hole 75, and a snap structure 8. Detailed implementation manners

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, and the present invention is not limited to the following embodiments.

[0043] See Figures 1-4 , in this embodiment, a modular quick-change electrical connector includes a conductive male end and a conductive female end. The conductive contact members protruding on the plane of the conductive male end constitute a plug, and the plug can be conductively connected to a socket constituted by conductive contact elements that are substantially completely surrounded by insulating material on the conductive female end through a mechanical connection method.

[0044] Both the conductive male end and the conductive female end include a housing 1, an integrated base 2, and a fixing member 3. The housings 1 on the conductive male end and the conductive female end are respectively used to fix the conductive male end and the conductive female end to the robot arm and the tool, or to fix the conductive male end and the conductive female end to the tool and the robot arm. A plurality of mounting holes 11 are formed on the housing 1, and the integrated base 2 is fixed in the mounting holes 11 through a snap structure. The housing 1 and the integrated base 2 are preferably made of insulating materials.

[0045] The fixing member 3 is used for electrically connecting with an external device. The fixing member 3 passes through and is fixed on the integrated base 2. The pin members 41 or the socket members 51 are uniformly and independently detachably mounted on the fixing member 3 on the integrated base 2, so that a pin assembly 4 or a socket assembly 5 is formed in the mounting holes 11, that is, the pin assemblies 4 are all in the mounting holes 11 of the housing 1 of the conductive male end, and the socket assemblies 5 are all in the mounting holes 11 of the housing 1 of the conductive female end.

[0046] In this embodiment, the mounting holes 11 on the housing 1 are arranged in a triangular pattern. The housing 1 is provided with an extension partition piece 15 for surrounding and separating the mounting holes 11 arranged side by side in a row and an extension piece 16 for surrounding a single mounting hole 11. The extension partition piece 15 and the extension piece 16 are equivalent to increasing the depth of the mounting holes 11, so that the thickness of the housing 1 can be reduced while ensuring the stable assembly of the integrated base 2.

[0047] In this embodiment, the fixing members 3 on the integrated base 2 are arranged in a staggered pattern, increasing the horizontal linear distance between adjacent fixing members 3, thereby improving the convenience of assembling the fixing members 3 on the integrated base 2.

[0048] In this embodiment, the fixing members 3 are made of ordinary copper alloy material, and the pin members 41 and socket members 51 are both made of wear-resistant copper alloy material.

[0049] See Figure 5 、 Figure 8 , an insulating cover 6 is installed in the mounting hole 11 through a snap structure. The insulating cover 6 covers the fixing members 3 on the integrated base 2, and the cavity of the insulating cover 6 is divided into a plurality of accommodating cavities 62 for accommodating the fixing members 3 on the integrated base 2 by a partition member 61 (as shown in Figure 6 、 Figure 8 ). The pin member 41 or socket member 51 is located between the fixing member 3 and the insulating cover 6. The insulating cover 6 is provided with a socket 63 that can be used for the needle tip 42 of the pin member 41 to pass through and can also be used to communicate with the jack 52 of the socket member 51. The outer end of the socket 63 is provided with a flared structure 64.

[0050] Among them, the insulating cover 6 on the pin assembly 4 has a smaller height than the insulating cover 6 on the socket assembly 5.

[0051] When the electrical connectors are docked with each other, the insulating cover 6 on the pin assembly 4 and the insulating cover 6 on the socket assembly 5 are arranged opposite to each other and the top surfaces of the two are in contact with each other in a flat manner.

[0052] In this embodiment, both the insulating cover 6 and the integrated base 2 are made of elastic and electrically insulating materials, which facilitates the assembly of the insulating cover 6 and the integrated base 2 in the mounting hole 11 of the housing 1. And since the insulating cover 6 needs to be removed when the electrical connector is repaired, in order to ensure the service life of the insulating cover 6, the insulating cover 6 is preferably made of a material softer than the integrated base 2.

[0053] In this embodiment, the housing 1 is provided with insertion ring pieces 12 or sleeve ring pieces 13 around a single or multiple mounting holes 11 (as shown in Figures 1-4 ). The insertion ring pieces 12 and the housing 1 are integrally connected, and there are side gaps 14 between the insertion ring pieces 12 and the insulating cover 6 or between the sleeve ring pieces 13 and the insulating cover 6 (as shown in Figure 3 、 Figure 4 ). The insertion ring pieces 12 and the sleeve ring pieces 13 can make there be a gap not less than the height of the sleeve ring piece 13 between the housings 1 of two docked electrical connectors, thereby facilitating the air flow between the housings 1 and protecting the docking of the pin members 41 and socket members 51 between the two electrical connectors while facilitating heat dissipation.

[0054] See Figure 6 、 Figure 7 、 Figure 9 and Figure 10 , a first slot 31 for inserting and threadedly connecting a pin member 41 or a socket member 51 is formed at the inner end of the fixing member 3. A plurality of clamping pieces 32 arranged at equal angles around the central axis of the first slot 31 are integrally connected to the opening edge of the first slot 31. A first channel 33 for the pin member 41 or the socket member 51 to pass through is formed between the clamping pieces 32. The first channel 33 is in the shape of an inverted frustum along the insertion direction of the pin member 41 or the socket member 51 therein. Both the pin member 41 and the socket member 51 are provided with a plug post portion 71 adapted to the first channel 33. When the pin member 41 or the socket member 51 is fixed to the fixing member 3, the side wall surface of the plug post portion 71 is in contact with the side wall surface of the first channel 33. A second slot 34 for inserting and fixing an electrical connector on an external device is formed at the outer end of the fixing member 3.

[0055] To ensure the electrical connection effect between the external device and the fixing member 2, after the electrical connector of the external device is inserted into the fixing member 2, welding or crimping can be used to strengthen the connection between the electrical connector of the external device and the fixing member 2, thereby improving the connection strength between the electrical connector of the external device and the fixing member 2.

[0056] See Figures 11-13 , the integrated base 2 includes a clamping base 21 and a fixing base 22. The clamping base 21 and the fixing base 22 are fixed by a snap structure. Opposite positions on the clamping base 21 and the fixing base 22 are respectively provided with a first through hole 23 and a second through hole 24. The first through hole 23 and the second through hole 24 are communicated with each other. A plurality of elastic clamping pieces 25 arranged at equal angles around the central axis of the first through hole 23 are provided on the first through hole 23. A second channel 26 for the fixing member 3 to pass through is formed between the elastic clamping pieces 25. The second channel 26 is in the shape of a frustum along the passing direction of the fixing member 3 therein. The fixing member 3 is provided with a guiding portion 72 adapted to the second channel 26. An annular clamping groove 35 is formed on the outer wall surface of the fixing member 3. When the fixing member 3 is fixed to the integrated base 2, the elastic clamping pieces 25 are clamped in the annular clamping groove 35.

[0057] In this embodiment, the cross-section of the first through hole 23 is circular, the cross-section of the second through hole 24 is a rounded triangle, the fixing member 3 is provided with a limiting portion 73 having a cross-section of a rounded triangle, and when the fixing member 3 is fixed to the integrated base 2, the side wall surface of the limiting portion 73 is in contact with the wall surface of the second through hole 24.

[0058] Among them, a first through hole 74 and a second through hole 75 are vertically formed on the side surface of the limiting portion 73. The first through hole 74 communicates with the first slot 31, and the second through hole 75 communicates with the second slot 34. A third through hole 53 is formed on the side surface of the socket member 51, and the third through hole 53 communicates with the jack 52.

[0059] The usage method of the present invention is as follows:

[0060] Step 1: Connect the clamping seat and the fixing seat through the snap mechanism to assemble an integrated seat, and then assemble the fixing member onto the integrated seat. During the assembly of the fixing seat, the fixing seat sequentially passes through the second through hole, the first through hole, and the second channel on the integrated seat. And during the process of the fixing seat passing through the second channel, the fixing member will push open the elastic clip until the elastic clip resumes and falls into the annular card slot on the fixing member, thereby completing the assembly of the fixing member on the integrated seat. Subsequently, the assembled integrated seat is assembled into the mounting hole of the housing through the snap structure;

[0061] During the above process, for convenient operation, the electrical connector on the corresponding external device can be first inserted into the second slot on the fixing member of the integrated seat, and the fixing member and the wire connector are fixed by welding or crimping. Then, the integrated seat with the external device connected is assembled into the mounting hole on the housing;

[0062] Step 2: Assemble the pin member onto the fixing member of the integrated seat. During the installation of the pin member, the pin member passes through the first channel and then enters the first slot. Then, the pin member is fixed to the fixing member in a threaded connection manner. And during the threaded connection process of the pin member and the fixing member, the pin member will continuously move into the first slot, so that the pin column of the pin member continuously moves into the first channel, causing the clip to be in close contact with the pin column part, thereby completing the detachable installation of the pin member on the fixing seat. Subsequently, the insulating cover is installed into the mounting hole through the snap structure, so that the pin member is located between the integrated seat and the insulating cover, and the tip of the pin of the pin member passes through the insulating cover and is exposed outside the insulating cover, thereby completing the assembly of the pin assembly in the mounting hole. After the assembly of the pin assemblies in all the mounting holes on the housing is completed, it can be used as a conductive male terminal;

[0063] If the socket member is assembled onto the fixing member of the integrated seat according to the assembly method of the pin member on the fixing member in Step 2, after the assembly of the socket member on the fixing seat is completed, the insulating cover is installed into the mounting hole through the snap structure, so that the socket member is located between the integrated seat and the insulating cover, and the sockets on the insulating cover correspond to the jacks of each socket member one by one, thereby completing the assembly of the socket assembly in the mounting hole. After the assembly of the socket assemblies in all the mounting holes on the housing is completed, it can be used as a conductive female terminal.

[0064] The above content described in this specification is only an example of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, as long as they do not deviate from the content of this specification of the present invention or exceed the scope defined by this claims, they shall fall within the protection scope of the present invention.

Claims

1. A modular quick-change electrical connector, characterized in that, it includes: a housing for being fixed on a robotic arm or a tool, and having a plurality of mounting holes formed thereon; an integrated base fixed in the mounting holes through a snap structure; a fixing member for electrically connecting with an external device, and the fixing member passes through and is fixed on the integrated base; wherein, pin members or socket members are uniformly and independently detachably mounted on the fixing members on the integrated base, so that a pin assembly or a socket assembly is formed in the mounting holes; a first slot for inserting and threadedly connecting a pin member or a socket member is formed at the inner end of the fixing member, and a plurality of clamping pieces arranged at equal angles around the central axis of the first slot are integrally connected to the opening edge of the first slot. A first channel for the pin member or the socket member to pass through is formed between the clamping pieces. The first channel is in the shape of an inverted frustum along the insertion direction of the pin member or the socket member inserted therein. A plug post portion adapted to the first channel is provided on both the pin member and the socket member. When the pin member or the socket member is fixed on the fixing member, the side wall surface of the plug post portion fits with the side wall surface of the first channel; the integrated base includes a clamping seat and a fixing seat. The clamping seat and the fixing seat are fixed through a snap structure. First perforations and second perforations are respectively formed at opposite positions on the clamping seat and the fixing seat. The first perforation and the second perforation are communicated with each other. A plurality of elastic clamping pieces arranged at equal angles around the central axis of the first perforation are provided on the first perforation. A second channel for the fixing member to pass through is formed between the elastic clamping pieces. The second channel is in the shape of a frustum along the passing direction of the fixing member therein. A guiding portion adapted to the second channel is provided on the fixing member. An annular clamping groove is formed on the outer wall surface of the fixing member. When the fixing member is fixed on the integrated base, the elastic clamping pieces are clamped in the annular clamping groove.

2. The modular quick-change electrical connector according to claim 1, characterized in that: an insulating cover is installed in the mounting hole through a snap structure. The insulating cover covers the fixing members on the integrated base, and the cavity of the insulating cover is separated into a plurality of accommodating cavities for accommodating the fixing members on the integrated base by a separating member. The pin member or the socket member is located between the fixing member and the insulating cover. An insertion opening for the tip of the pin of the pin member to pass through or an insertion opening for communicating with the jack of the socket member is formed on the insulating cover.

3. The modular quick-change electrical connector according to claim 1, characterized in that: a second slot for inserting and fixing an electrical connector on an external device is formed at the outer end of the fixing member.

4. The modular quick-change electrical connector according to claim 1, characterized in that: the cross section of the first perforation is circular, the cross section of the second perforation is a rounded triangle, and a limiting portion with a cross section of a rounded triangle is provided on the fixing member. When the fixing member is fixed on the integrated base, the side wall surface of the limiting portion fits with the wall surface of the second perforation.

5. The modular quick-change electrical connector according to claim 4, characterized in that: a first through hole and a second through hole are vertically formed on the side surface of the limiting portion. The first through hole is communicated with the first slot, the second through hole is communicated with the second slot, and a third through hole is formed on the side surface of the socket member. The third through hole is communicated with the jack.

6. The modular quick-change electrical connector according to claim 1, characterized in that: The housing is provided with insertion ring pieces or collar pieces around single or multiple mounting holes, and there are lateral gaps between the insertion ring pieces and the insulating cover or between the collar pieces and the insulating cover.

7. The modular quick-change electrical connector according to claim 1, characterized in that: The mounting holes on the housing are arranged in a triangular pattern.

8. The modular quick-change electrical connector according to claim 7, characterized in that: The housing is provided with extension partition pieces for surrounding and separating the mounting holes arranged side by side in a row and extension pieces for surrounding a single mounting hole.

9. The modular quick-change electrical connector according to claim 1, characterized in that: The housing is made of electrical insulating material, the fixing member is made of ordinary copper alloy material, and the pin member and the socket member are both made of wear-resistant copper alloy material.

10. The modular quick-change electrical connector according to claim 2, characterized in that: Both the insulating cover and the integrated base are made of elastic and electrically insulating materials.

11. The modular quick-change electrical connector according to claim 2, characterized in that: The outer end of the socket is provided with a flared structure.

12. A method for assembling the modular quick-change electrical connector according to any one of claims 1 to 11, characterized in that: First, the fixing member is inserted and fixed on the integrated base, then the integrated base is fixed in the mounting holes on the housing through a snap structure, and then the pin member or the socket member is uniformly and independently detachably mounted on the fixing member on the integrated base, so that a pin assembly or a socket assembly is formed in the mounting hole.

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