An industrial connector, assembly method and detection method

Abstract

This invention relates to an industrial connector, an assembly method, and a testing method. The industrial connector includes a socket, a power distribution socket, and a resistance detection assembly. The power distribution socket is inserted into the power distribution chamber of the socket. A connector on the power distribution socket is used for electrical connection with the ferrule of an industrial plug. The resistance detection assembly includes a mounting base, a first wire harness, and a detection wire module. The mounting base is fixed in the assembly chamber of the socket. The detection wire module includes four conductive wires, each with a bent elastic segment. For any detection wire module, each bent elastic segment passes through a resistance detection through-hole and is electrically connected to a conductor within the power distribution chamber, thus forming a Kelvin four-wire detection configuration for resistance detection. This invention, by using a resistance detection assembly disposed in the socket, enables resistance detection of the power distribution socket connected to the ferrule of an industrial plug through a Kelvin four-wire detection configuration, allowing for early identification of potential contact faults.

Description

Technical Field

[0001] This invention relates to the field of industrial connector technology, and more specifically to an industrial connector, an assembly method, and a testing method. Background Technology

[0002] Industrial connectors, as key components in electrical connection systems, are widely used in power distribution and signal transmission scenarios of various industrial equipment. During long-term operation, the contact resistance between industrial plugs and sockets can gradually increase due to factors such as mechanical wear, oxidation corrosion, insufficient contact pressure, or foreign object intrusion. This abnormal increase in contact resistance not only causes localized heating and accelerates the aging of insulation materials, but in severe cases, it can also lead to arcing faults or even fires, posing a direct threat to equipment and personnel safety.

[0003] Currently, the assessment of the operational status of industrial connectors mainly relies on periodic inspections or manual measurements. However, these methods cannot quickly and accurately measure the resistance value at the connection point, and lack precise judgment on the degradation of contact performance of industrial connectors during use. Due to the difficulty in obtaining accurate data on the resistance value at the mating point of industrial connectors, existing technologies cannot perform early fault identification and warning based on abnormal resistance values. This makes it difficult to detect and address the deterioration of contact conditions in industrial sockets in a timely manner, posing significant safety hazards.

[0004] In view of this, there is an urgent need to design a new type of industrial connector to enable rapid and accurate judgment of the contact performance of industrial connectors during use. Summary of the Invention

[0005] To address the shortcomings of existing industrial connectors, this invention provides an industrial connector, assembly method, and testing method. By incorporating a resistance detection component within the socket and employing a Kelvin four-wire detection method, it achieves precise resistance detection of the power distribution connection socket connected to the industrial plug core, thereby enabling early warning of the contact performance of the industrial connector before it is powered on and put into use.

[0006] In a first aspect of the present invention, an industrial connector is provided, comprising a housing portion having an inner cavity extending through both ends, and further comprising: a socket fixed in the inner cavity, the socket having an assembly chamber, a grounding chamber, and at least one power distribution chamber extending through; the outer wall of the power distribution chamber having four resistance detection through holes arranged sequentially along the axial direction of the power distribution chamber and staggered in the circumferential direction; A grounding connection socket is inserted into the grounding chamber; The power distribution connection sockets are respectively inserted into the corresponding power distribution chambers; each power distribution connection socket includes a plug portion for electrical connection with the plug core of an industrial plug. A resistance detection assembly includes a mounting base, a first wire harness, and a detection wire module. The mounting base is fixed in the assembly chamber, and the detection wire module, the first wire harness, and the power distribution chamber are arranged in a one-to-one correspondence. Each detection wire module is fixed on the mounting base and electrically connected to the corresponding first wire harness. The detection wire module includes four conductive wires, each of which includes a bending elastic segment. For any detection wire module, each of the bending elastic segments passes through the corresponding resistance detection through hole and is electrically connected to the conductor in the power distribution chamber, thereby forming a Kelvin four-wire detection form for resistance detection. A socket end cap is located in the inner cavity and is fixedly connected to one end of the socket seat. The socket end cap is provided with a through groove and a cable hole. The first wire harness passes through the through groove. The grounding chamber is connected to the through groove. The cable hole is connected to the corresponding power distribution chamber.

[0007] Optionally, a temperature detection component is provided in the inner cavity. The temperature detection component includes a mounting base, which is fixedly connected to the socket. At least one temperature sensor is fixedly disposed on the mounting base. The temperature sensor includes a probe and a second wiring harness, which is used to transmit the electrical signal of the temperature sensor to the outside. Each of the aforementioned power distribution chambers has a temperature detection through hole on its outer wall. The probe passes through the temperature detection through hole so that the temperature sensor can detect the temperature of the power distribution connection socket or industrial plug core. The insert end cap is provided with a lead wire hole, through which the second wire harness passes.

[0008] Optionally, a first fixing plate is fixed at one end of the socket near the socket end cap, and a limiting through hole is provided on the first fixing plate, the limiting through hole communicating with the lead hole; A cable bundle tube is fixedly installed on the mounting base. The cable bundle tube has a closed-end sliding cavity with the opening facing the limiting through hole. A hollow sliding sleeve is slidably installed inside the sliding cavity. An elastic element is provided between the sliding sleeve and the closed end of the sliding cavity. The elastic element provides a preset elastic force to the sliding sleeve so that the sliding sleeve has a tendency to move in the direction of the limiting through hole. When at least part of the sliding sleeve pops out of the cable bundle and is inserted into the limiting through hole, the mounting base and the first fixing plate form a limiting engagement. The second wire harness passes through the wire harness tube, the sliding sleeve, the limiting through hole, and the lead wire hole.

[0009] Optionally, the cable bundle is provided with a positioning groove, and a limiting slider is provided on the outer wall of the sliding sleeve. The limiting slider slides in the positioning groove to constrain the circumferential rotation and axial travel of the sliding sleeve.

[0010] Optionally, a baffle is provided at one end of the positioning groove near the insert end cap, and the limiting slider includes a guide slope and a blocking end face; When the sliding sleeve is inserted into the sliding cavity, the guide slope is used to allow the limiting slider to pass over the baffle. When the sliding sleeve is inserted into the sliding cavity, the blocking end face is used to prevent the limiting slider from going over the baffle.

[0011] Optionally, a second fixing plate is fixed to one end of the insert seat away from the insert head. The second fixing plate is provided with at least one positioning hole, and the mounting seat is provided with at least one positioning protrusion. The positioning hole and the positioning protrusion are inserted into each other so that the mounting seat and the second fixing plate form a positioning engagement.

[0012] Optionally, the length of the temperature sensing through hole along the axial direction of the socket is greater than the diameter of the probe.

[0013] Optionally, it also includes a wiring terminal, which is fixedly disposed on the socket end cap. The wiring terminal has a first socket and a second socket on the side facing the socket base. Each first wire harness is electrically connected to the corresponding first socket, and each second wire harness is electrically connected to the corresponding second socket. The terminal block is provided with a conversion plug end on the side opposite to the socket, and the first socket and the second socket are electrically connected to the conversion plug end through an internal conductor.

[0014] Optionally, the socket end cap is fixedly provided with symmetrical mounting plates, the wiring terminal is located between the mounting plates, at least one of the mounting plates is provided with a locking block, at least one side of the wiring terminal is provided with a locking groove, and the locking block and the locking groove form a locking engagement. The mounting plate is provided with a guide ridge, and the outer wall of the terminal block is provided with a guide groove, and the guide ridge slides in conjunction with the guide groove.

[0015] Optionally, a baffle is fixedly provided in the assembly chamber, and the baffle abuts against one end of the fixed seat; at least two parallel and axially extending limiting rods are fixedly provided on the baffle, and at least two axial holes are provided on the fixed seat, with the limiting rods and the axial holes being inserted into each other.

[0016] Optionally, the housing portion includes a wire harness ring, a sheath, and a base connected sequentially by threads; The sheath and the base are locked together by a locking plate; The socket is fixedly provided with a first connecting platform, and the first connecting platform is provided with a first splicing groove distributed circumferentially; the socket end cap is fixedly provided with a second connecting platform, and the second connecting platform is provided with a second splicing groove distributed circumferentially; the inner ring of the base is provided with snap-fit ​​platforms distributed circumferentially. The insert seat and insert end cap are respectively inserted from both ends of the base so that the first splicing groove and the second splicing groove are joined together to form a locking groove. When the insert seat and insert end cap are tightened together in the axial direction, the locking groove clamps the locking platform so that the insert seat and insert end cap are fixedly connected to the base. The base is movably provided with a flip cover on the side opposite to the cable tie ring; it also includes a locking ring, which is fixedly connected to both the flip cover and the base to lock the cover when the flip cover closes the end of the base.

[0017] In a second aspect of the invention, an assembly method is provided for assembling the aforementioned industrial connector, comprising: Insert the grounding connection socket into the grounding chamber and fix it to the socket base with fasteners; insert the power distribution connection socket into the corresponding power distribution chamber and fix it to the socket base with fasteners. Install the mounting base in the assembly chamber to ensure that the bending elastic segment of each conductive wire in each detection wire module passes through the corresponding resistance detection through hole to be electrically connected to the conductor in the power distribution chamber, thereby forming a Kelvin four-wire detection form for resistance detection. Secure the mounting base to the socket, ensuring that the probes of each temperature sensor in the temperature sensing assembly pass through the temperature sensing through-hole; Insert the socket and the socket end cap into the base from both ends respectively so that the first splicing groove and the second splicing groove are joined together to form a clamping groove. Secure the socket and the socket end cap to each other so that the clamping groove clamps the clamping platform, ensuring that the socket and the socket end cap are fixedly connected to the base; at the same time, ensure that the first wire harness passes through the through groove and the second wire harness passes through the lead hole. After each first wire harness is electrically connected to its corresponding first socket and each second wire harness is electrically connected to its corresponding second socket, the terminal block is fixed to the socket end cap. Screw the sheath onto one end of the base, and insert a locking plate between the sheath and the base to lock them together. Connect the cap to the other end of the base, and tighten the cable loop to the end of the sheath away from the base; When the flip cover closes the end of the base, the locking ring simultaneously tightens on both the flip cover and the base to lock the cover in place.

[0018] In a third aspect of the invention, a detection method is provided, employing the aforementioned industrial connector, comprising: Obtain the interpolation completion signal; A detection current signal is applied to the current conductive wire of the detection wire module through the first wire harness, so that the current conductive wire of the detection wire module and the first part of the conductor of the power distribution chamber form an independent current excitation circuit. The voltage conductive wire of the detection wire module and the second part of the conductor of the power distribution chamber form an independent voltage detection circuit, and receive the voltage signal of the measured connection point fed back by the independent voltage detection circuit through the first wire harness; Calculate the resistance value at the connection point being tested based on the voltage signal at the connection point being tested; The contact performance of the industrial connector mating part is determined by comparing the measured resistance value at the tested connection point with the preset resistance threshold. If the measured resistance value at the tested connection point is less than the preset resistance threshold, the industrial connector is considered to be mating normally. If the measured resistance value at the tested connection point is not less than the preset resistance threshold, the industrial connector is considered to be mating abnormally.

[0019] Compared with the prior art, the technical solution provided by this invention has the following advantages: This technical solution for industrial connectors physically separates the current excitation circuit from the voltage detection circuit by setting four circumferentially staggered resistance detection through-holes in the power distribution chamber and configuring a detection wire module containing four conductive wires. This structure allows the current conductive wire to form an independent current circuit with the first part of the power distribution chamber conductor, and the voltage conductive wire to form an independent voltage circuit with the second part of the power distribution chamber conductor. This effectively eliminates the influence of wire resistance and contact resistance on the measurement results, achieving accurate measurement of micro-ohm contact resistance. This enables the industrial connector to quickly and accurately determine the contact performance at the connection point during mating, allowing for early identification of potential contact faults.

[0020] The flexible bending section design of the conductive wire in this technical solution ensures that the conductive wire maintains a constant contact pressure with the conductor inside the power distribution cavity, compensating for changes in micro-gap caused by thermal expansion and contraction or vibration, and ensuring the reliability of the detection wire module.

[0021] This technical solution for industrial connectors utilizes a resistance detection component to achieve a modular design for detecting the contact performance of the connector connection. Through the mating structure of the assembly chamber and the fixed base, as well as the resistance detection through-hole on the outer periphery of the power distribution chamber side wall, the resistance detection component and the power distribution connection socket are assembled independently, which facilitates product assembly and improves the assembly efficiency of industrial connectors. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the industrial connector proposed in an embodiment of the present invention.

[0023] Figure 2 This is one of the exploded structural diagrams of the industrial connector proposed in the embodiments of the present invention.

[0024] Figure 3 This is the second exploded view of the industrial connector proposed in this embodiment of the invention.

[0025] Figure 4 This is a partial structural diagram of the industrial connector proposed in an embodiment of the present invention.

[0026] Figure 5 This is an exploded view of a partial structure of an industrial connector proposed in an embodiment of the present invention.

[0027] Figure 6 This is one of the structural schematic diagrams of the socket proposed in the embodiments of the present invention.

[0028] Figure 7 This is the second schematic diagram of the socket structure proposed in the embodiment of the present invention.

[0029] Figure 8 This is a cross-sectional view of the socket structure proposed in an embodiment of the present invention.

[0030] Figure 9 This is a schematic diagram of the resistance detection component proposed in an embodiment of the present invention.

[0031] Figure 10 This is a schematic diagram of the power distribution connection socket proposed in an embodiment of the present invention.

[0032] Figure 11 This is a cross-sectional view of the power distribution connection socket proposed in an embodiment of the present invention.

[0033] Figure 12 This is a schematic diagram of the structure of the insert end cap proposed in an embodiment of the present invention.

[0034] Figure 13 This is a schematic diagram of the mounting base proposed in an embodiment of the present invention.

[0035] Figure 14 This is a schematic diagram of the temperature sensor proposed in an embodiment of the present invention.

[0036] Figure 15 This is a schematic diagram of the sliding sleeve proposed in an embodiment of the present invention.

[0037] Figure 16 This is a schematic diagram of the terminal block structure proposed in an embodiment of the present invention.

[0038] Figure 17 This is a schematic diagram of the circuit connecting the conductive wire and the conductor inside the power distribution cavity, as proposed in an embodiment of the present invention. Detailed Implementation

[0039] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings and embodiments.

[0040] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. The terms "first," "second," etc., used in this invention are for the convenience of describing the technical solutions of the invention and have no specific limiting effect; they are all general terms and do not constitute a limitation on the technical solutions of the invention. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, not to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict, all of which are within the scope of protection claimed by this invention.

[0041] Example 1

[0042] Combined with appendix Figure 1 To be continued Figure 16 This embodiment proposes an industrial connector, including a housing portion 10, on which an inner cavity is provided at both ends. The industrial connector also includes: a socket 11, a grounding connection socket 12, a power distribution connection socket 13, a resistance detection component, and a socket end cap 15.

[0043] The socket 11 is fixed in the inner cavity. The socket 11 is provided with an assembly chamber 110, a grounding chamber 111, and at least one power distribution chamber 112. The outer wall of the power distribution chamber 112 is provided with four resistance detection through holes 1120. The resistance detection through holes 1120 are arranged sequentially along the axial direction of the power distribution chamber 112 and staggered in the circumferential direction.

[0044] The grounding connection socket 12 is inserted into the grounding chamber 111; the power distribution connection socket 13 is inserted into the corresponding power distribution chamber 112; the power distribution connection socket 13 includes a plug-in part 130, which is used to make a power connection with the plug core of the industrial plug.

[0045] The resistance detection assembly includes a mounting base 141, a first wire harness 142, and a detection wire module. The mounting base 141 is fixed in the assembly chamber 110. The detection wire module, the first wire harness 142, and the power distribution chamber 112 are arranged in a one-to-one correspondence. Each detection wire module is fixed on the mounting base 141 and electrically connected to the corresponding first wire harness 142.

[0046] The detection wire module includes four conductive wires 143, each of which includes a bending elastic section 1430. For any detection wire module, each bending elastic section 1430 passes through the corresponding resistance detection through hole 1120 and is electrically connected to the conductor in the power distribution chamber 112, thereby forming a Kelvin four-wire resistance detection form for resistance detection.

[0047] The plug end cap 15 is located in the inner cavity and is fixedly connected to one end of the plug seat 11. The plug end cap 15 is provided with a through groove 150 and a cable hole 151. The first wire harness 142 passes through the through groove 150. The grounding chamber 111 is connected to the through groove 150. The cable hole 151 is connected to the corresponding power distribution chamber 112.

[0048] For the industrial connector in this embodiment, see attached... Figure 1 To be continued Figure 3 The example shown is an industrial socket used to connect with an industrial plug. The connection method involves inserting the power distribution pins of the industrial plug into the corresponding power distribution chambers 112 and engaging with the corresponding power distribution connection sockets 13 to achieve electrical connection. Simultaneously, the grounding pins of the industrial plug are inserted into the corresponding grounding chambers 111 and engaged with the corresponding grounding connection sockets 12 to achieve electrical connection. Specific connection methods can be referenced from traditional industrial connectors and will not be elaborated here. The industrial connector also includes a control unit, or connects to a downstream control unit, for applying and feeding electrical signals. In this embodiment, the detection wire module is electrically connected to the control unit via a connector. The structure of the control unit is not shown in the accompanying drawings, but this does not affect the integrity of the technical solution.

[0049] In this embodiment, the conductor in the power distribution chamber 112 consists of the power distribution connection socket in the industrial connector and the power distribution connection core in the external industrial plug.

[0050] In this embodiment, the detection wire module, the first wire harness 142, and the power distribution chamber 112 are arranged in a one-to-one correspondence. Specifically, the number and arrangement of the grounding chamber 111, the power distribution chamber 112, and the corresponding grounding connection socket 12 and power distribution connection socket 13 can be designed according to the specific industrial connector style. For example, in a single-phase industrial connector, there are two power distribution chambers 112 and two power distribution connection sockets 13, which are used to mate with the live wire and neutral wire sockets, respectively. In other industrial connectors such as three-phase connectors, the power distribution chambers 112 and two power distribution connection sockets 13 are arranged corresponding to the sockets of each phase.

[0051] Furthermore, the resistance detection component in this embodiment is used to detect the resistance at the conductor connection point in the power distribution chamber 112 before the industrial connector is powered on after mating. Therefore, for different types of industrial connectors, based on the number of their power distribution connection sockets 13, a corresponding number of detection wire modules are set, and each detection wire module detects the resistance value of the corresponding power distribution connection socket 13.

[0052] Furthermore, each detection wire module includes four conductive wires 143, each with a bent elastic segment 1430 that passes through a corresponding resistance detection through-hole 1120 and is electrically connected to a conductor within the distribution chamber 112, thereby forming a Kelvin four-wire detection method for resistance detection. It is understandable that for each detection wire module, the conductive wires 143 need to be connected to the downstream voltage and current loops to meet the requirements of a complete Kelvin four-wire detection circuit.

[0053] In another embodiment, the projections of the two middle resistance detection through holes 1120 onto the corresponding power distribution connection sockets 13 are located within the range of the plug-in portion 130. In this embodiment, the projections of each resistance detection through hole 1120 onto the corresponding power distribution connection socket 13 are not located within the range of the plug-in portion 130; that is, the projections of two resistance detection through holes 1120 are located on both sides of the plug-in portion 130. Compared to the other embodiment, this point layout is more reasonable and can cover the actual effective electrical connection portion after the socket of the industrial socket and the core of the industrial plug are connected.

[0054] In this embodiment, the principle of resistance detection of the conductor inside the distribution chamber 112 is as follows: the bent elastic sections 1430 of the four conductive wires 143 pass through the resistance detection through-holes 1120 and are electrically connected to the conductor inside the distribution chamber 112, as shown in the attached figure. Figure 17As shown, four conductive wires 143 are configured into two pairs of independent test leads (first current conductive wire C1, second current conductive wire C2, first voltage conductive wire P1, second voltage conductive wire P2). The first current conductive wire C1 and the second current conductive wire C2 form an independent current excitation circuit with the conductor inside the distribution chamber 112, and the first voltage conductive wire P1 and the second voltage conductive wire P2 form an independent voltage detection circuit with the conductor inside the distribution chamber 112. According to the attached... Figure 17 It is known that the bending elastic segment 1430 of the first current conductive wire C1 and the bending elastic segment 1430 of the second current conductive wire C2 are respectively connected to the two outermost resistance detection through holes 1120, and the bending elastic segment 1430 of the first voltage conductive wire P1 and the bending elastic segment 1430 of the second voltage conductive wire P2 are respectively connected to the two innermost resistance detection through holes 1120. For specific detection methods, please refer to the following embodiments.

[0055] For the industrial connector in this embodiment, generally, the assembly chamber 110 and the power distribution chamber 112 are arranged adjacent to each other, as shown in the attached diagram. Figure 6 and attached Figure 7 In the illustrated embodiment, the outer wall of the distribution chamber 112 partially constitutes the outer wall of the assembly chamber 110. The assembly chamber 110 is used to install the resistance detection assembly, and the assembly chamber 110 and the mounting base 141 are paired using a foolproof design structure. In this embodiment, the resistance detection assembly includes the mounting base 141, the first wire harness 142, and the detection wire module, wherein the detection wire module further includes four conductive wires 143. One form in which the detection wire module is fixedly mounted on the mounting base 141 and electrically connected to the first wire harness 142 is as follows: the mounting base 141 is provided with several contacts, and the contacts are electrically connected to the first wire harness 142 through conductors built into the mounting base 141 (or other configurations). At the same time, the elastic wire is connected to the contacts by welding or other means to achieve a fixed connection between the mounting base 141 and the detection wire module.

[0056] The conductive wire 143 in the detection wire module includes a bending elastic section 1430. The conductive wire 143 is generally made of a silver-plated beryllium copper alloy. Beryllium copper alloy itself possesses excellent elasticity and elastic recovery properties. Its silver plating balances elasticity with low contact resistance, improving the accuracy of resistance detection. (See attached image) Figure 9As shown, the bent elastic segment 1430 is a portion formed by bending the conductive wire 143, and the bent elastic segment 1430 has natural elasticity. During the assembly of the resistance detection assembly, the fixing seat 141 is first inserted into the assembly chamber 110. During the process of inserting the fixing seat 141 into the assembly chamber 110, the bent elastic segment 1430 is compressed and deformed, but it still has the elastic force to restore its original shape. When the bent elastic segment 1430 of the corresponding conductive wire 143 passes through the corresponding resistance detection through hole 1120, due to its elastic force, the deformation of the bent elastic segment 1430 gradually recovers, so that the top of the bent elastic segment 1430 can abut against the conductor inside the distribution chamber 112.

[0057] In a preferred embodiment, when the top height of the bent elastic segment 1430 is greater than the distance between the rest of the conductive wire 143 and the power distribution connection sleeve 13, although the deformation of the bent elastic segment 1430 abutting against the conductor inside the power distribution chamber 112 is partially restored, it is not fully restored. Therefore, the top of the bent elastic segment 1430 always has a tendency to arch towards the power distribution connection sleeve 13, and the top of the bent elastic segment 1430 can always be in tight contact with the conductor inside the power distribution chamber 112. The design of the bent elastic segment 1430 of the conductive wire 143 maintains a constant contact pressure between the conductive wire 143 and the conductor inside the power distribution chamber 112, compensating for changes in micro-gap caused by thermal expansion and contraction or vibration, and ensuring the reliability of the detection wire module.

[0058] In this embodiment, the resistance detection through holes 1120 are arranged sequentially along the axial direction of the power distribution chamber 112 and staggered in the circumferential direction. The conductive wires 143 and their bent elastic segments 1430 are also arranged accordingly. Obviously, since the resistance detection through holes 1120 are staggered in the axial and circumferential directions, it can be ensured that the conductive wires 143 do not interfere with or affect each other. In another embodiment, a partition structure can also be added to the surface of the fixing base 141 so that after the fixing base 141 is connected to the assembly chamber 110, the conductive wires 143 are isolated by the partition structure.

[0059] Furthermore, the resistance detection through-holes 1120 are arranged sequentially along the axial direction of the power distribution chamber 112, which can ensure that the bent elastic segments 1430 on different conductive wires 143 are electrically connected to different areas of the conductor in the power distribution chamber 112, ensuring that the measurement position meets the requirements of the Kelvin four-wire detection form, thereby ensuring the accuracy of the resistance measurement.

[0060] In a preferred embodiment, as shown in the appendix Figure 9As shown, the conductive wire 143 is flat, or at least a portion of the bent elastic segment 1430 (especially the most protruding portion) is flat. The flat bent elastic segment 1430 ensures sufficient contact area when it comes into contact with the conductor inside the distribution chamber 112. Furthermore, when the conductive wire 143 is flat overall, it has stronger resistance to flipping and is easier to assemble compared to a cylindrical conductive wire 143.

[0061] In conjunction with the aforementioned embodiments, the industrial connector of this embodiment, through the resistance detection component provided in the socket 11, realizes the resistance detection of the power distribution socket 13 connected to the industrial plug core through Kelvin four-wire detection, thereby enabling the detection of the contact performance degradation of the industrial connector.

[0062] In other embodiments of this example, a temperature detection assembly is also provided in the inner cavity of the housing 10. The temperature detection assembly includes a mounting base 160, on which at least one temperature sensor 161 is fixedly mounted. The temperature sensor 161 includes a probe 1610 and a second wiring harness 162, which is used to transmit the electrical signal of the temperature sensor 161 to the outside. Each power distribution chamber 112 has a temperature detection through hole 1121 on its outer wall. The probe 1610 passes through the temperature detection through hole 1121 so that the temperature sensor 161 can detect the temperature of the power distribution connection socket 13 or the industrial plug core. The socket end cap 15 has a lead hole 152, through which the second wiring harness 162 passes.

[0063] In this implementation, unlike the resistance detection component, the temperature detection component is used to monitor the heating level of the conductors within the power distribution chamber 112 during the power-on operation of the industrial connector, while the resistance detection component is used to pre-detect the contact resistance of the conductors within the power distribution chamber 112 after mating and before power-on. The combined effect of both components covers the electrical monitoring of critical connections throughout the entire service life of the industrial connector, improving its safety performance.

[0064] In this implementation, the temperature sensor 161 is fixedly connected to the socket 11 via the mounting base 160. After the probe 1610 of the temperature sensor 161 passes through the temperature detection through-hole 1121, it can detect the temperature of the corresponding power distribution connection socket 13 or industrial plug core in real time. Understandably, the temperature detection component will ultimately be electrically connected to the control unit at the back end via the second wiring harness 162 to transmit the temperature signal.

[0065] In a further embodiment, a first fixing plate 153 is fixed to one end of the insert socket 11 near the insert end cap 15. The first fixing plate 153 has a limiting through hole 1530, which communicates with the lead wire hole 152. A cable bundle 163 is fixedly mounted on the mounting base 160. The cable bundle 163 has a closed-end sliding cavity 1630, the opening of which faces the limiting through hole 1530. A hollow sliding sleeve 164 is slidably mounted inside the sliding cavity 1630. An elastic element 165 is provided between the closed end of the sliding cavity 1630 and the elastic element 165 provides a preset elastic force to the sliding sleeve 164 so that the sliding sleeve 164 has a tendency to move in the direction of the limiting through hole 1530; when at least part of the sliding sleeve 164 pops out of the wire harness tube 163 and is inserted into the limiting through hole 1530, the mounting base 160 and the first fixing plate 153 form a limiting engagement; the second wire harness 162 passes through the wire harness tube 163, the sliding sleeve 164, the limiting through hole 1530 and the lead hole 152.

[0066] This implementation method can achieve positioning and fixation between the mounting base 160 and the insert socket 11. When installing the temperature detection component, first push the sliding sleeve 164 into the sliding cavity 1630, then place the mounting base 160 on the insert socket 11, and ensure that the probe 1610 is inserted into the temperature detection through hole 1121. Then release the sliding sleeve 164, and the sliding sleeve 164 can slide towards the limiting through hole 1530 under the action of the elastic element 165 (generally a spring), thereby forming a plug-in engagement with the limiting through hole 1530. This plug-in engagement can achieve positioning and fixation between the mounting base 160 and the insert socket 11.

[0067] Furthermore, a positioning groove 1631 is provided on the cable tie 163, and a limiting slider 1640 is provided on the outer wall of the sliding sleeve 164. The limiting slider 1640 slides in the positioning groove 1631 to constrain the circumferential rotation and axial travel of the sliding sleeve 164. In this embodiment, the limiting slider 1640 slides along the positioning groove 1631, thereby forming a limit between the sliding sleeve 164 and the cable tie 163. The length of the positioning groove 1631 is the linear travel length of the sliding sleeve 164. Moreover, due to the cooperation between the limiting slider 1640 and the positioning groove 1631, rotation of the sliding sleeve 164 in the cable tie 163 can be prevented, ensuring stability and ease of operation during assembly.

[0068] In a preferred embodiment, a baffle 1632 is provided at one end of the positioning groove 1631 near the insert end cap 15, and the limiting slider 1640 includes a guide slope 1641 and a blocking end face 1642. The guide slope 1641 ensures that the sliding sleeve 164 can be easily inserted into the cable tie 163; that is, when the sliding sleeve 164 is inserted into the sliding cavity 1630, the guide slope 1641 allows the limiting slider 1640 to more easily pass over the baffle 1632. After the sliding sleeve 164 is inserted into the sliding cavity 1630, the blocking end face 1642 abuts against the baffle 1632 of the positioning groove 1631, thereby preventing the limiting slider 1640 from passing over the baffle 1632. (See attached...) Figure 15 In the embodiment shown, the limiting slider 1640 is triangular in shape, with the hypotenuse of the triangular plate being the guide slope 1641 and the right-angled side on one side being the blocking end face 1642.

[0069] In the aforementioned embodiments, the cable tie 163 is ejected by the sliding sleeve 164 and inserted into the limiting through hole 1530, thereby creating a limiting fit between the mounting base 160 and the first fixing plate 153. This limiting fit ensures the stable installation of one end of the mounting base 160. For the other end of the mounting base 160, in a preferred embodiment, a second fixing plate 154 is fixed to the end of the insert sleeve 11 opposite to the insert sleeve end cap 15. The second fixing plate 154 has at least one positioning hole 1540, and the mounting base 160 has at least one positioning protrusion 166. The positioning hole 1540 and the positioning protrusion 166 are inserted to create a positioning fit between the mounting base 160 and the second fixing plate 154. In this embodiment, the insertion of the positioning hole 1540 and the positioning protrusion 166 achieves the positioning and fixation between the other end of the mounting base 160 and the insert sleeve 11.

[0070] As can be seen from the two aforementioned embodiments, when the mounting base 160 and the first fixing plate 153 form a limiting fit, and the mounting base 160 and the second fixing plate 154 form a positioning fit, the mounting base 160 and the temperature sensor 161 installed on the mounting base 160 are all stably installed.

[0071] In this embodiment, the probe 1610 of the temperature sensor 161 needs to pass through the temperature detection through-hole 1121. To improve installation convenience, in a preferred embodiment, the length of the temperature detection through-hole 1121 along the axial direction of the socket 11 is greater than the diameter of the probe 1610. Specifically, as shown in the attached figure... Figure 5 and attached Figure 6 As shown, the temperature sensing through-hole 1121 is oblong in shape, or other elongated hole forms can be used. This can significantly reduce the assembly accuracy requirements and facilitate installation.

[0072] Meanwhile, based on the aforementioned mounting base 160 forming a limiting or positioning fit with the first fixing plate 153 and the second fixing plate 154, the temperature detection through hole 1121 is designed as an elongated hole, which can better accommodate the temporary interference caused when the mounting base 160 and the first fixing plate 153 and the second fixing plate 154 form a fit.

[0073] Based on the simultaneous configuration of the aforementioned resistance detection component and temperature detection component, in a preferred embodiment, a wiring terminal 17 is further included. The wiring terminal 17 is fixedly disposed on the socket end cap 15. The wiring terminal 17 has a first socket 171 and a second socket 172 on the side facing the socket 11. Each first wire harness 142 is electrically connected to the corresponding first socket 171, and each second wire harness 162 is electrically connected to the corresponding second socket 172. A conversion plug terminal 173 is provided on the side of the wiring terminal 17 away from the socket 11. The first socket 171 and the second socket 172 are electrically connected to the conversion plug terminal 173 through an internal conductor.

[0074] This implementation method, through the arrangement of the terminal block 17, centralizes the first wire harnesses 142 and the second wire harnesses 162. After the first wire harnesses 142 and the second wire harnesses 162 are electrically connected to the first socket 171 and the second socket 172, they are further electrically connected to the conversion plug 173 through the built-in conductor of the terminal block 17. Finally, the electrical connection is achieved with the rear-end electrical connection structure through the conversion plug 173. This centralized arrangement of the first wire harnesses 142 and the second wire harnesses 162 facilitates subsequent work and maintenance.

[0075] The terminal block 17 is fixedly mounted on the socket end cap 15. In a preferred embodiment, the socket end cap 15 is fixedly mounted with symmetrical mounting plates 18, and the terminal block 17 is located between the mounting plates 18. At least one mounting plate 18 is provided with a locking block 180, and at least one side of the terminal block 17 is provided with a locking groove 174. The locking block 180 and the locking groove 174 form a locking engagement. The mounting plate 18 is provided with a guide protrusion 181, and the outer wall of the terminal block 17 is provided with a guide groove 175. The guide protrusion 181 and the guide groove 175 slide in engagement.

[0076] Therefore, when the terminal block 17 is connected to the first wire harness 142 and the second wire harness 162 and needs to be installed on the socket head 15, first ensure that the guide protrusion 181 is engaged in the guide groove 175, and then push the terminal block 17 towards the socket head 15. At this time, the guide protrusion 181 acts like a guide rail, and the terminal block 17 is continuously pushed until the locking block 180 is engaged in the locking groove 174 to form a locking engagement. At this point, the terminal block 17 is installed.

[0077] Obviously, the engagement of the locking block 180 with the locking slot 174 and the engagement of the guide protrusion 181 with the guide groove 175 can constrain the free movement of the terminal block 17, preventing the terminal block 17 from moving freely in the axial, horizontal or vertical direction during the use of industrial connectors.

[0078] For the industrial connector in this embodiment, its resistance detection component is mainly installed by connecting the fixing base 141 to the assembly chamber 110. In a preferred embodiment, a baffle 190 is fixedly provided in the assembly chamber 110, and the baffle 190 abuts against one end of the fixing base 141; at least two parallel and axially extending limiting rods 191 are fixedly provided on the baffle 190, and at least two axial holes 1410 are provided on the fixing base 141, with the limiting rods 191 and the axial holes 1410 being inserted into each other.

[0079] This implementation method ensures that the fixed base 141 will not rotate axially by cooperating with the parallel limiting rods 191 and the axial holes 1410, thereby achieving a stable installation of the fixed base 141. Preferably, the limiting rods 191 and the axial holes 1410 can be interference-fitted to further ensure stability. In addition, the baffle 190 can position the insertion depth of the fixed base 141, preventing the fixed base 141 from being inserted too deeply or too shallowly, and preventing the bent elastic segment 1430 from failing to smoothly engage with the corresponding resistance detection through hole 1120.

[0080] In addition, in a preferred embodiment, the housing portion 10 includes a wire harness 20, a sheath 21, and a base 22 connected in sequence by threads.

[0081] The sheath 21 and the base 22 are locked together by a locking plate 23. Specifically, the sheath 21 and the base 22 are respectively provided with interconnected insertion holes and grooves. The locking plate 23 is inserted into the insertion holes and grooves and engages with the insertion holes, thereby further locking the sheath 21 and the base 22 after they are connected together, preventing relative circumferential rotation between the two.

[0082] Furthermore, a first connecting platform 24 is fixedly provided on the insert seat 11, and the first connecting platform 24 is provided with a first splicing groove 240 distributed circumferentially; a second connecting platform 25 is fixedly provided on the insert end cap 15, and the second connecting platform 25 is provided with a second splicing groove 250 distributed circumferentially; a snap-fit ​​platform 26 is provided on the inner ring of the base 22; the insert seat 11 and the insert end cap 15 are respectively inserted from both ends of the base 22 so that the first splicing groove 240 and the second splicing groove 250 are joined together to form a snap-fit ​​groove. When the insert seat 11 and the insert end cap 15 are axially fastened to each other, the snap-fit ​​groove clamps the snap-fit ​​platform 26 so that the insert seat 11 and the insert end cap 15 are fixedly connected to the base 22.

[0083] In addition, a flip cover 27 is movably provided on the side of the base 22 away from the cable tie ring 20; it also includes a locking ring 28, which is fixedly connected to both the flip cover 27 and the base 22 when the flip cover 27 closes the end of the base 22 to lock the cover.

[0084] Thus, the assembly of the cable tie ring 20, sheath 21, base 22, flip cover 27, and locking ring 28 constitutes a complete industrial connector.

[0085] In this embodiment, the industrial connector uses four circumferentially staggered resistance detection through-holes 1120 in the power distribution chamber 112 and a detection wire module containing four conductive wires 143 to physically separate the current excitation circuit and the voltage detection circuit. This structure allows the current conductive wire and the first part of the conductor under test to form an independent current circuit, and the voltage conductive wire and the second part of the conductor under test to form an independent voltage circuit. This effectively eliminates the influence of wire resistance and contact resistance on the measurement results, and achieves accurate measurement of contact resistance. This allows the industrial connector to quickly and accurately determine the contact performance at the connection point during docking, so as to identify possible contact faults at an early stage.

[0086] This technical solution utilizes a resistance detection component to achieve a modular design for detecting the contact performance of the industrial connector connection. Through the mating structure of the assembly chamber 110 and the fixed base 141, as well as the resistance detection through hole 1120 on the outer periphery of the side wall of the power distribution chamber 112, the resistance detection component and the power distribution connection socket 13 are assembled independently, which facilitates product assembly and improves the assembly efficiency of the industrial connector.

[0087] Example 2

[0088] Combined with appendix Figure 1 To be continued Figure 16 This embodiment proposes an assembly method for assembling the industrial connector described in the technical solution of Embodiment 1, comprising: inserting a grounding connection sleeve 12 into a grounding chamber 111 and fixing it to a sleeve base 11 with fasteners; and inserting a power distribution connection sleeve 13 into a corresponding power distribution chamber 112 and fixing it to a sleeve base 11 with fasteners.

[0089] The mounting base 141 is installed in the assembly chamber 110, ensuring that the bending elastic section 1430 of each conductive wire 143 in each detection wire module passes through the corresponding resistance detection through hole 1120 to be electrically connected to the conductor in the power distribution chamber 112, thereby forming a Kelvin four-wire detection form for resistance detection.

[0090] Fix the mounting base 160 onto the socket 11, ensuring that the probes 1610 of each temperature sensor 161 in the temperature detection assembly pass through the temperature detection through hole 1121.

[0091] Insert the socket 11 and the socket end cap 15 from both ends of the base 22 to assemble the first splicing groove 240 and the second splicing groove 250 into a locking groove. Secure the socket 11 and the socket end cap 15 together to clamp the locking groove onto the locking platform 26, ensuring that the socket 11 and the socket end cap 15 are fixedly connected to the base 22. At the same time, ensure that the first wire harness 142 passes through the through groove 150 and the second wire harness 162 passes through the lead hole 152.

[0092] After each first wire harness 142 is electrically connected to the corresponding first socket 171 and each second wire harness 162 is electrically connected to the corresponding second socket 172, the terminal block 17 is fixed on the socket end cap 15.

[0093] Tighten the sheath 21 to one end of the base 22, and insert the locking plate 23 between the sheath 21 and the base 22 to lock them together.

[0094] The cap is attached to the other end of the base 22, and the cable tie 20 is screwed onto the end of the sheath 21 away from the base 22. When the flip cover 27 closes the end of the base 22, the locking ring 28 is simultaneously screwed onto the flip cover 27 and the base 22 to lock the cap.

[0095] The fixed connection between the grounding connection socket 12 and the power distribution connection socket 13 and the socket base 11 can be achieved by fasteners such as screws.

[0096] In this embodiment, the fixing seat 141 is installed in the assembly chamber 110. This can be achieved by inserting the limiting rod 191 into the axial hole 1410 and pushing the fixing seat 141 until it abuts against the stop 190. Simultaneously, the bent elastic segment 1430 on the conductive wire 143 deforms under pressure during the insertion of the fixing seat 141 into the assembly chamber 110. When the bent elastic segment 1430 passes through the corresponding resistance detection through hole 1120, the deformation of the bent elastic segment 1430 recovers, and at this point, the top of the bent elastic segment 1430 can abut against the conductor inside the corresponding power distribution chamber 112.

[0097] In this embodiment, the mounting base 160 is fixed to the insert socket 11. Specifically, as described in Example 1, the positioning hole 1540 at one end of the mounting base 160 is first inserted into the positioning protrusion 166 to form a positioning fit between one end of the mounting base 160 and the insert socket 11. Then, the sliding sleeve 164 is pushed into the sliding cavity 1630, and the mounting base 160 is placed on the insert socket 11, ensuring that the probe 1610 is inserted into the temperature detection through hole 1121. Subsequently, the sliding sleeve 164 is released, and it slides towards the limiting through hole 1530 under the action of the elastic element 165 (generally a spring), thus forming an insertion fit with the limiting through hole 1530.

[0098] Furthermore, the installation of the sliding sleeve 164, in conjunction with Embodiment 1, can be performed as follows: the temperature sensor 161 is fixed on the mounting base 160, and the spring and the sliding sleeve 164 are sequentially placed into the sliding cavity 1630 of the wire harness tube 163. Finally, the second wire harness 162 connected to the temperature sensor 161 is passed through the wire harness tube 163, the sliding sleeve 164, the limiting through hole 1530, and the lead hole 152.

[0099] Example 3

[0100] Combined with appendix Figure 1 To be continued Figure 17 This embodiment proposes a detection method using the industrial connector described in Embodiment 1, comprising: Obtain the interpolation completion signal; A detection current signal is applied to the current conductive wire of the detection wire module through the first wire harness 142, so that the first current conductive wire C1 and the second current conductive wire C2 of the detection wire module and the first part of the conductor in the power distribution chamber 112 form an independent current excitation circuit. The first voltage conductive wire P1 and the second voltage conductive wire P2 of the detection wire module, together with the second part of the conductor in the power distribution chamber 112, form an independent voltage detection circuit, and receive the voltage signal of the measured connection point fed back by the independent voltage detection circuit through the first wire harness 142. Calculate the resistance value at the connection point being tested based on the voltage signal at the connection point being tested; The contact performance of the industrial connector mating part is determined by comparing the measured resistance value at the tested connection point with the preset resistance threshold. If the measured resistance value at the tested connection point is less than the preset resistance threshold, the industrial connector is considered to be mating normally. If the measured resistance value at the tested connection point is not less than the preset resistance threshold, the industrial connector is considered to be mating abnormally.

[0101] In this embodiment, the mating completion signal can be triggered by a micro switch or proximity switch built into the industrial connector.

[0102] In the above embodiments, the first part of the conductor inside the power distribution chamber 112 covers the second part of the conductor inside the power distribution chamber 112. For details, please refer to the description of the resistance detection principle of the conductor inside the power distribution chamber 112 in Embodiment 1.

[0103] In this embodiment, industrial connectors of different specifications have different preset resistance thresholds.

[0104] In this embodiment, the detection method performs a pre-detection of the industrial connector before power-on after mating. That is, after the tested connection is tested for resistance (determining that the current industrial connector is mated normally), the electrical signal circuit between the control unit and the resistance detection component is interrupted (achieved through the thyristor control circuit), so as to avoid the high current operation of the industrial connector from affecting the normal signal processing of the back-end control unit.

[0105] In this embodiment, once the industrial connector is determined to be properly connected, it can be powered on normally. During operation, a temperature sensor performs real-time temperature detection at the connection point under test, enabling comprehensive testing of the industrial connector throughout its service life and improving the safety of its use.

[0106] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An industrial connector, comprising a housing portion, wherein the housing portion has an inner cavity extending through both ends, characterized in that, Also includes: A socket is fixed in the inner cavity. The socket is provided with an assembly chamber and a grounding chamber and a power distribution chamber that pass through it. The outer wall of the power distribution chamber is provided with resistance detection through holes, which are arranged sequentially along the axial direction of the power distribution chamber and staggered in the circumferential direction. A grounding connection socket is inserted into the grounding chamber; The power distribution connection sockets are respectively inserted into the corresponding power distribution chambers; each power distribution connection socket includes a plug portion for electrical connection with the plug core of an industrial plug. A resistance detection assembly includes a mounting base, a first wire harness, and detection wire modules; the mounting base is fixed in the assembly chamber, and each detection wire module is fixed on the mounting base and electrically connected to the corresponding first wire harness; The detection wire module includes four conductive wires, each of which includes a bending elastic segment. Each bending elastic segment passes through a corresponding resistance detection through-hole and is electrically connected to a conductor in the power distribution chamber. A socket end cap is located in the inner cavity and is fixedly connected to one end of the socket seat. The socket end cap is provided with a through groove and a cable hole. The first wire harness passes through the through groove. The grounding chamber is connected to the through groove. The cable hole is connected to the corresponding power distribution chamber.

2. An industrial connector according to claim 1, characterized in that, A temperature detection component is provided in the inner cavity. The temperature detection component includes a mounting base, which is fixedly connected to the socket. At least one temperature sensor is fixedly mounted on the mounting base. The temperature sensor includes a probe and a second wire harness, which is used to transmit the electrical signal of the temperature sensor to the outside. Each of the aforementioned power distribution chambers has a temperature detection through hole on its outer wall. The probe passes through the temperature detection through hole so that the temperature sensor can detect the temperature of the power distribution connection socket or industrial plug core. The insert end cap is provided with a lead wire hole, through which the second wire harness passes.

3. An industrial connector according to claim 2, characterized in that, A first fixing plate is fixed at one end of the socket near the socket end cap. A limit hole is provided on the first fixing plate, and the limit hole communicates with the lead hole. A cable bundle tube is fixedly installed on the mounting base. The cable bundle tube has a closed-end sliding cavity with the opening facing the limiting through hole. A hollow sliding sleeve is slidably installed inside the sliding cavity. An elastic element is provided between the sliding sleeve and the closed end of the sliding cavity. The elastic element provides a preset elastic force to the sliding sleeve so that the sliding sleeve has a tendency to move in the direction of the limiting through hole. When at least part of the sliding sleeve pops out of the cable bundle and is inserted into the limiting through hole, the mounting base and the first fixing plate form a limiting engagement. The second wire harness passes through the wire harness tube, the sliding sleeve, the limiting through hole, and the lead wire hole.

4. An industrial connector according to claim 3, characterized in that, The cable bundle tube is provided with a positioning groove, and the outer wall of the sliding sleeve is provided with a limiting slider. The limiting slider slides in the positioning groove to constrain the circumferential rotation and axial travel of the sliding sleeve. The positioning groove is provided with a baffle at one end near the insert end cap, and the limiting slider includes a guide slope and a blocking end face; When the sliding sleeve is inserted into the sliding cavity, the guide slope is used to allow the limiting slider to pass over the baffle. When the sliding sleeve is inserted into the sliding cavity, the blocking end face is used to prevent the limiting slider from going over the baffle.

5. An industrial connector according to claim 2 or 3, characterized in that, The end of the insert seat opposite to the insert head is fixed with a second fixing plate. The second fixing plate is provided with at least one positioning hole. The mounting seat is provided with at least one positioning protrusion. The positioning hole and the positioning protrusion are inserted into each other so that the mounting seat and the second fixing plate form a positioning fit.

6. An industrial connector according to claim 2, characterized in that, It also includes a wiring terminal, which is fixedly disposed on the socket end cap. The wiring terminal has a first socket and a second socket on the side facing the socket base. Each first wire harness is electrically connected to the corresponding first socket, and each second wire harness is electrically connected to the corresponding second socket. The terminal block is provided with a conversion plug end on the side opposite to the socket, and the first socket and the second socket are electrically connected to the conversion plug end through an internal conductor.

7. An industrial connector according to claim 6, characterized in that, The socket end cap is fixedly provided with symmetrical mounting plates, the wiring terminal is located between the mounting plates, at least one of the mounting plates is provided with a locking block, at least one side of the wiring terminal is provided with a locking groove, and the locking block and the locking groove form a locking engagement. The mounting plate is provided with a guide ridge, and the outer wall of the terminal block is provided with a guide groove, and the guide ridge slides in conjunction with the guide groove.

8. An industrial connector according to claim 1, characterized in that, A baffle is fixedly installed in the assembly chamber, and the baffle abuts against one end of the fixed seat; at least two parallel and axially extending limiting rods are fixedly installed on the baffle, and at least two axial holes are provided on the fixed seat, with the limiting rods inserted into the axial holes.

9. An industrial connector according to claim 1, characterized in that, The housing includes a wire harness ring, a sheath, and a base connected sequentially by threads; The sheath and the base are locked together by a locking plate; The socket is fixedly provided with a first connecting platform, and the first connecting platform is provided with a first splicing groove distributed circumferentially; the socket end cap is fixedly provided with a second connecting platform, and the second connecting platform is provided with a second splicing groove distributed circumferentially; the inner ring of the base is provided with snap-fit ​​platforms distributed circumferentially. The insert seat and insert end cap are respectively inserted from both ends of the base so that the first splicing groove and the second splicing groove are joined together to form a locking groove. When the insert seat and insert end cap are tightened together in the axial direction, the locking groove clamps the locking platform so that the insert seat and insert end cap are fixedly connected to the base. The base is movably provided with a flip cover on the side opposite to the cable tie ring; it also includes a locking ring, which is fixedly connected to both the flip cover and the base to lock the cover when the flip cover closes the end of the base.

10. An assembly method, characterized in that, For assembling the industrial connector according to any one of claims 1 to 9, comprising: Insert the grounding connection socket into the grounding chamber and fix it to the socket base with fasteners; insert the power distribution connection socket into the corresponding power distribution chamber and fix it to the socket base with fasteners. Install the mounting base in the assembly chamber to ensure that the bending elastic segment of each conductive wire in each detection wire module passes through the corresponding resistance detection through hole to be electrically connected to the conductor in the power distribution chamber, thereby forming a Kelvin four-wire detection form for resistance detection. Fix the mounting base with the temperature detection component onto the socket, ensuring that the probes of each temperature sensor in the temperature detection component pass through the temperature detection through hole; Insert the socket and socket end cap into the base from both ends to join the first and second splicing slots to form a locking groove. Secure the socket and socket end cap together to clamp the locking groove and make the socket and socket end cap aligned with the base. Then, fix the socket and socket end cap together with fasteners to ensure that the first wire harness passes through the through slot and the second wire harness passes through the lead hole. After each first wire harness is electrically connected to its corresponding first socket and each second wire harness is electrically connected to its corresponding second socket, the terminal block is fixed to the socket end cap. Screw the sheath onto one end of the base, and insert a locking plate between the sheath and the base to lock them together. Connect the cap to the other end of the base, and tighten the cable loop to the end of the sheath away from the base; When the flip cover closes the end of the base, the locking ring simultaneously tightens on both the flip cover and the base to lock the cover in place.

11. A testing method using the industrial connector described in any one of claims 1 to 9, characterized in that, include: Obtain the interpolation completion signal; A detection current signal is applied to the current conductive wire of the detection wire module through the first wire harness, so that the current conductive wire of the detection wire module and the first part of the conductor of the power distribution chamber form an independent current excitation circuit. The voltage conductive wire of the detection wire module and the second part of the conductor of the power distribution chamber form an independent voltage detection circuit, and receive the voltage signal of the measured connection point fed back by the independent voltage detection circuit through the first wire harness; Calculate the resistance value at the connection point being tested based on the voltage signal at the connection point being tested; The contact performance of the current industrial connector mating part is judged based on the measured resistance value of the tested connection and the preset resistance threshold; if the measured resistance value of the tested connection is less than the preset resistance threshold, the current industrial connector mating is determined to be normal. If the measured resistance value at the tested connection is not less than the preset resistance threshold, the current industrial connector is determined to be abnormal.

Images