Connecting device for measuring conductive slip ring

Abstract

The invention provides a connecting device for conductive slip ring measurement, which comprises a connecting base and a one-to-two lead connecting assembly, and is characterized in that the connecting base comprises a locking seat and a connecting plate, the locking seat comprises two contact pin clamping grooves, and a plurality of pairs of contact pin positioning pieces and contact pin locking pieces are arranged in the contact pin clamping grooves; all the contact pin locking pieces in each contact pin clamping groove are fixedly connected with a hand lever, a spring is installed at one end of the hand lever, and the hand lever is adjusted to drive the contact pin locking pieces to conduct locking or unlocking. The connecting plate comprises a plurality of pins, each pin is connected with a test equipment connector through a printed wire, and the pin positioning pieces are correspondingly connected with the pins; the one-to-two lead connection assembly is a PCB printed board, two rows of pins are welded on the PCB printed board, a row of pads are arranged between the two rows of pin welding spots, the pads are welded with the conductive slip ring outgoing line, the pads are connected with the two pin welding spots on the two sides through printed lines, and the pins are correspondingly connected with the pin positioning pieces. According to the invention, zero-plugging-force, low-cost, time-saving and labor-saving repeated connection in the conductive slip ring measurement process can be realized.

Description

Technical Field

[0001] This invention belongs to the field of conductive slip ring measurement technology, and specifically relates to a connection device for conductive slip ring measurement. Background Technology

[0002] In aerospace, security, medical, power, and other major industrial sectors, conductive slip rings are widely used as a medium for 360-degree rotating conduction and signal transmission. Typically, conductive slip rings undergo various tests and trials before leaving the factory, and each process generally requires connection to their rotor and stator lead wires. The common methods for this connection are soldering or using connectors. While soldering is reliable, the repetitive disassembly and soldering at each stage inevitably increases labor costs and reduces efficiency. Using connectors reduces repetitive labor, but their selection requires consideration of factors such as size, reliability, and lifespan. In terms of cost, connectors do not offer a significant advantage over the labor costs of soldering; they only save time. Furthermore, if high accuracy is required for slip ring contact resistance testing, a Kelvin four-wire measurement method is often used. This means each lead wire needs to be connected to two points on the connector, further increasing the soldering workload and the number of connector contact points, potentially exceeding the cost of manual labor. Therefore, finding a connection device with zero insertion / extraction force, low cost, and time and labor saving to replace traditional connector connections and manual soldering is a real problem that manufacturers are eager to solve. Summary of the Invention

[0003] The purpose of this invention is to propose a connection device for conductive slip ring measurement, which achieves zero insertion / extraction force, low cost, and time and labor saving connection during conductive slip ring measurement, replacing connector connection and manual soldering connection methods, and can be applied throughout the entire testing cycle of conductive slip rings.

[0004] The technical solution adopted by the present invention to achieve the above objectives is as follows:

[0005] As one aspect of the present invention, a connection device for measuring conductive slip rings is provided, including:

[0006] The connecting base includes a locking seat and a connecting plate. The locking seat includes two pin slots arranged parallel to each other along its length. Each pin slot includes a plurality of pin positioning elements arranged at fixed intervals. Each pin positioning element includes a pin locking element on one side. All pin locking elements in each pin slot are fixedly connected to a handle. A spring is installed at one end of the handle. Pushing the handle compresses the spring, causing the pin locking elements on the handle to move closer to the pin positioning elements to a locked state. Pulling the handle releases the spring, causing all pin locking elements on the handle to move away from the pin positioning elements to an unlocked state. The connecting plate includes a plurality of pins. Each pin is connected to a test equipment connector via a printed line. The pin positioning elements of the locking seat are connected one-to-one with the pins on the connecting plate.

[0007] A 1-to-2 lead wire connection assembly is provided. The 1-to-2 lead wire connection assembly is a PCB printed circuit board. Two rows of parallel pins are soldered on the PCB printed circuit board. Between the solder joints of the two rows of pins is a row of pads. Each pad is soldered to a lead wire of a conductive slip ring. The pads are connected to one of the solder joints of the two rows of pins through two printed lines. The pins of the 1-to-2 lead wire connection assembly are connected to the pin positioning parts of the locking seat in a one-to-one correspondence.

[0008] Furthermore, the leads of the conductive slip ring are grouped, with each group corresponding to a pair of PCB printed circuit boards and locking seats. The number of pads on a single PCB printed circuit board is greater than or equal to the number of conductive slip ring channels to be tested within the corresponding group.

[0009] Furthermore, the spacing between each row of pins on the PCB is equal to the spacing of the pin positioning components in the pin slot of the locking seat; the two pin slots have a certain width, so that the spacing between the two rows of pins has a certain design margin.

[0010] Furthermore, the maximum width of the PCB printed circuit board does not exceed the diameter of the conductive slip ring end face.

[0011] Furthermore, the PCB includes a LINE area and a FIXED area. The LINE area is located along the length of the PCB and between a row of pads and a row of pins. The FIXED area is located at one end of the PCB. The conductive slip ring leads soldered on the PCB are routed in the LINE area and are wound and fixed in the FIXED area.

[0012] Furthermore, the locking seat and PCB printed circuit board are modularly designed according to the channel grouping of the conductive slip ring and the number of channels to be tested, and the resulting locking seat and PCB printed circuit board module has a set number of pin positioning parts and pins.

[0013] Furthermore, the rotor and stator odd-numbered and even-numbered channel structures of the conductive slip ring are not independent. The number of channels to be measured in the rotor or stator is n. The number of locking seat pin positioning components connected to the rotor or stator is designed to be 2n, and the number of PCB printed circuit board pins corresponding to the locking seat is 2n.

[0014] Furthermore, the conductive slip ring rotor and stator odd-numbered and even-numbered channel structures are independent. The number of channels to be measured for the rotor or stator with odd or even numbered channels is n. The locking seat pin positioning components connected to the rotor or stator with odd or even numbered channels are designed to be 2n, and the PCB printed circuit board pins corresponding to the locking seat are 2n.

[0015] Furthermore, the pin locking components in the two pin slots are fixedly connected to a lever, and the lever controls the pin locking components in the two pin slots to lock synchronously.

[0016] As another aspect of the present invention, a conductive slip ring employing the aforementioned connecting device is also provided.

[0017] The beneficial effects of this invention compared to the prior art are as follows:

[0018] The connection device provided by the present invention has a connection base that is connected to the pin positioning component on the locking seat through the pins on the connection plate. The 1-to-2 lead wire connection component uses PCB printed circuit board traces to connect the lead wire solder points to two rows of pins that are adapted to the spacing of the locking seat. The connection or disassembly time between the 1-to-2 lead wire connection component and the connection base is approximately within 5 seconds, and zero insertion and extraction force is completely achieved. This connection method can be used repeatedly.

[0019] The connection device provided by this invention has a simple structure and is easy to operate. It has the advantages of low cost and saving time and effort. In practical engineering applications, this connection method of conductive slip ring can be applied to each process to replace the traditional connector connection and manual welding method, which is both efficient and economical.

[0020] The connection device provided by the present invention modularly designs the locking seat and PCB printed circuit board according to the channel grouping of the conductive slip ring and the number of channels to be tested. The resulting locking seat and PCB printed circuit board module has a set number of pin positioning parts and pins, which can simplify the design and reduce manufacturing costs. It can be used to assemble conductive slip rings of different specifications. Attached Figure Description

[0021] The accompanying drawings, which form part of this specification, are provided to further illustrate embodiments of the invention and, together with the textual description, explain the principles of the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0022] Figure 1 A schematic diagram of the structure of the locking seat provided in a specific embodiment of the present invention;

[0023] Figure 2 The diagram shows the structure of a PCB printed circuit board provided in a specific embodiment of the present invention, where (a) represents odd-numbered channels and (b) represents even-numbered channels.

[0024] Figure 3 This is a schematic diagram of the connection device for measuring a conductive slip ring, provided as a specific embodiment of the present invention. Detailed Implementation

[0025] Specific embodiments of the present invention will now be described in detail. In the following description, specific details are set forth for purposes of explanation and not limitation, in order to aid in a thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced in other embodiments departing from these specific details.

[0026] It should be noted that, in order to avoid obscuring the invention with unnecessary details, only the device structure and / or processing steps closely related to the solution of the invention are shown in the accompanying drawings, while other details that are not closely related to the invention are omitted.

[0027] As one aspect of the present invention, a connection device for measuring conductive slip rings is provided, such as... Figures 1-3 As shown, it includes a connecting base and a one-to-two lead wire connection assembly.

[0028] The connecting base includes a locking seat 1 and a connecting plate 2. The locking seat includes two pin slots arranged parallel to each other along the length direction. Each pin slot includes several pin positioning parts 3 arranged at fixed intervals. Each pin positioning part includes a pin locking part 4 on one side. All pin locking parts in each pin slot are fixedly connected to a lever 5. A spring is installed at one end of the lever. Pushing the lever to compress the spring will drive all pin locking parts on the lever to approach the pin positioning parts to the locked state. Pulling the lever to release the spring will drive all pin locking parts on the lever to move away from the pin positioning parts to the unlocked state. The connecting plate includes several pins that correspond one-to-one with the pin positioning parts. Each pin is connected to the test equipment connector through a printed line. The locking seat is fixedly connected to the connecting plate, so that the pin positioning parts of the locking seat are connected one-to-one with the pins on the connecting plate.

[0029] The 1-to-2 lead connection component is a PCB printed circuit board. Two rows of parallel pins are soldered on the PCB printed circuit board. Between the two rows of pin solder joints is a row of elliptical pads. Each elliptical pad is soldered to a conductive slip ring. The elliptical pads are connected to one solder joint of the two rows of pins through printed lines on both sides.

[0030] The 1-to-2 lead wire connection assembly connects to the connection base by inserting a pin into the pin slot of the locking seat and pushing the lever, thereby connecting the conductive slip ring to the test equipment.

[0031] The connection device provided by the present invention has a connection base connected to the pin positioning component on the locking seat through the pins on the connection plate. The one-to-two lead wire connection component uses PCB printed circuit board traces to connect the lead wire solder points to two rows of pins that are adapted to the spacing of the locking seat. Through the quick insertion and removal of the one-to-two lead wire connection component and the connection base, zero insertion and removal force and multiple repeated uses are achieved.

[0032] The connection device provided by this invention has a simple structure, is easy to operate, and is reusable. It has the advantages of zero insertion and extraction force, low cost, and time and labor saving. It is suitable for every process of conductive slip ring measurement and effectively replaces traditional connector connection and manual soldering connection methods.

[0033] As a preferred embodiment of the present invention, such as Figure 2 As shown, the 1-to-2 lead-to-lead connector assembly consists of a PCB and dual-row pins. The central elliptical pad is the solder point for the conductive slip ring lead, and the two sides are dual-row pin solder points. All dual-row pin solder points are connected to the central pad via printed lines, thus enabling each central pad to simultaneously connect to two single points of the dual-row pins. This effectively divides one lead of the conductive slip ring into two test points to meet the requirements of the four-wire measurement method. Typically, the total number of central elliptical pads on the PCB of the 1-to-2 lead-to-lead connector assembly should be greater than or equal to the number of conductive slip ring test channels. Considering the grouping of conductive slip rings (grouping the leads of the conductive slip rings, with each group corresponding to a pair of PCBs and locking seats), the number of central elliptical pads in a single PCB group should be greater than or equal to the number of conductive slip ring test channels in a single group.

[0034] In a preferred embodiment of the present invention, to avoid misalignment between the pins and the locking seat, the total number of double-row pins is designed to correspond to the number of pin positioning elements in the locking seat; that is, the total number of pins on one side is equal to the number of pin positioning elements in one pin slot of the locking seat. The longitudinal spacing of the pins should be equal to the longitudinal spacing of the pin positioning elements in the locking seat. Typically, for ease of connection, the pin slots inside the locking seat are relatively wide, meaning a wider range of lateral spacing is suitable for pin connections. Therefore, the lateral spacing of the pins should be designed to be suitable for the installation of the locking seat.

[0035] As a preferred embodiment of the present invention, considering the testing and installation after the conductive slip ring lead wire is soldered to the printed circuit board, there may be a situation where a ring-through test is required. Therefore, the maximum value of the designed width of the printed circuit board should not exceed the diameter of the conductive slip ring end face.

[0036] In a preferred embodiment of the present invention, a conductive slip ring lead-out trace area (e.g.) is provided on the PCB printed circuit board. Figure 2 The LINE area shown), the fixed conductive slip ring lead area (such as...) Figure 2 As shown in the FIXED area, after the conductive slip ring leads are soldered to each elliptical pad, the conductive slip ring leads are routed along the trace area. In the area where the slip ring leads are fixed, cotton thread or narrow tape is used to wrap all the leads to the printed circuit board. This can effectively release stress on the corresponding solder points of the slip ring leads, thereby protecting the solder points from stress and ensuring that the slip ring is not affected during transportation and testing, even when carrying the test board.

[0037] As a preferred embodiment of the present invention, in cases where the actual conductive slip ring has too many channel groups and a large number of channels to be tested, the locking seat and PCB printed circuit board can be modularly designed. That is, the locking seat and PCB printed circuit board are prepared as modules of a set number of pin positioning parts and pins, which simplifies the processing and preparation of the connection device. By using multiple locking seats and PCB printed circuit board modules in combination, the connection between the conductive slip ring lead wire and the test equipment can be realized.

[0038] As a preferred embodiment of the present invention, depending on the channel grouping of the actual conductive slip ring and the number of channels to be tested, the design of the locking seat can be as follows:

[0039] (1) For the case where the rotor and stator odd-numbered channels and even-numbered channels of the conductive slip ring are not independent, if the number of channels to be measured in the rotor or stator is n, then the corresponding locking seat pin positioning parts of the rotor or stator can be designed to be 2n, and the corresponding PCB printed circuit board pins are also 2n.

[0040] (2) In cases where the rotor and stator odd-numbered and even-numbered channels of the conductive slip ring are not independent, if the number n of the conductive slip ring rotor or stator to be measured is large (e.g., greater than 32), two locking seats can be designed to be connected to the rotor or stator respectively, and the total number of pin positioning parts of the two locking seats is not less than 2n.

[0041] (3) For the case where the odd and even channels of the conductive slip ring rotor and stator are independent, if the number of channels to be measured for the odd or even array rotor or stator is n, then the number of locking seat pin positioning parts connected to the odd or even array rotor or stator can be 2n, and the corresponding number of PCB printed circuit board pins is also 2n.

[0042] (4) For the case where the odd-numbered and even-numbered channels of the conductive slip ring rotor and stator are independent, if the number of channels n to be measured of the odd-numbered or even-numbered rotor or stator is large (e.g., greater than 32), the odd-numbered or even-numbered rotor or stator can be designed to be connected to two locking seats, and the total number of pin positioning parts of the two locking seats is not less than 2n.

[0043] In a preferred embodiment of the present invention, the pin locking elements in the two pin slots are fixedly connected to a lever, and the lever simultaneously controls the pin locking elements in the two pin slots to lock synchronously.

[0044] This invention provides a connection device for measuring conductive slip rings. The connection steps are as follows: First, the locking seat lever is released, then the splitter wire connection assembly is placed inside the locking seat, and the locking seat lever is tightened to complete one connection. After the conductive slip ring test is completed, the locking seat lever is released again, and the splitter wire connection assembly is removed. This connection or disassembly operation takes approximately 5 seconds and achieves zero insertion and extraction force. This connection method can be used repeatedly.

[0045] In practical engineering applications, this connection method of conductive slip rings can be applied to every process, replacing traditional connector connections and manual soldering, which is both efficient and economical.

[0046] As one aspect of the present invention, the technical solution of the present invention will be described in detail with reference to a specific embodiment. A certain type of 44-channel conductive slip ring structurally separates 22 odd-numbered channels and 22 even-numbered channels. The connection device designed for 44-channel conductive slip ring measurement is divided into 4 sets of connection bases and 4 sets of one-to-two lead connection assemblies, such as… Figure 3 As shown.

[0047] The four sets of connecting bases specifically consist of one set of rotor odd-array connecting bases, one set of rotor even-array connecting bases, one set of stator odd-array connecting bases, and one set of stator even-array connecting bases. The locking seat of the connecting base uses a 44-pin positioning component.

[0048] The four sets of one-to-two lead connection assemblies specifically consist of one set of one-to-two rotor odd-numbered lead connection assemblies, one set of one-to-two rotor even-numbered lead connection assemblies, one set of one-to-two stator odd-numbered lead connection assemblies, and one set of one-to-two stator even-numbered lead connection assemblies. The one set of one-to-two rotor odd-numbered lead connection assemblies corresponds to the rotor odd-numbered lead connection of the conductive slip ring, the one set of one-to-two rotor even-numbered lead connection assemblies corresponds to the rotor even-numbered lead connection of the conductive slip ring, the one set of one-to-two stator odd-numbered lead connection assemblies corresponds to the stator odd-numbered lead connection of the conductive slip ring, and the one set of one-to-two stator even-numbered lead connection assemblies corresponds to the stator even-numbered lead connection of the conductive slip ring. The four sets of one-to-two lead connection components use the elliptical pad in the middle of the PCB as the soldering point for the slip ring lead, which can be reliably soldered to the lead of the conductive slip ring. All dual-row pin solder points are connected to the middle solder point through printed lines within the PCB, thus enabling each middle solder point to simultaneously connect to two single points of the dual-row pins. In other words, one lead of the conductive slip ring is divided into two test points. Figure 2 As shown. The only difference between odd-numbered and even-numbered PCB designs is the printed markings. The PCB with the four sets of one-to-two lead connectors has 22 elliptical pads in the middle. To avoid misalignment with the locking seat, the total number of pins in the double rows is 44, meaning the total number of pins on one side is 22. The longitudinal spacing of the pins is equal to the longitudinal spacing of the pin positioning elements in the locking seat. Because the locking seat has a large internal hole, it is suitable for a wide range of lateral spacing for pin connections; therefore, the lateral spacing of the pins should be designed to be suitable for locking seat installation. In principle, considering the testing and installation after the conductive slip ring leads are soldered to the PCB, there may be conditions requiring ring-through testing; the maximum width of the PCB design should not exceed the diameter of the slip ring end face. In addition, cotton thread or narrow tape is used to wrap the lead wires in the area where the slip ring leads are fixed to the printed circuit board. This can effectively release the stress on the corresponding solder joints of the slip ring leads, thereby protecting the solder joints from stress and ensuring that the slip ring is not affected during transportation and testing, even when carrying the test board.

[0049] The connection steps for the 44-line conductive slip ring measurement device are as follows: First, release the locking seat lever to the loose state, then place the 1-to-2 lead wire connection assembly inside the locking seat, and operate the locking seat lever to lock it, completing one connection. After the conductive slip ring test is completed, release the locking seat lever again and remove the 1-to-2 lead wire connection assembly. The connection or disassembly operation takes approximately 5 seconds and achieves zero insertion and extraction force. This connection method can be reused multiple times. In practical engineering applications, this 44-line conductive slip ring connection method can be applied to each process, replacing traditional connector connections and manual soldering methods, which is both efficient and economical.

[0050] The features described and / or illustrated above with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, and / or in combination with or in lieu of features in other embodiments.

[0051] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, whole, step, or component, but does not exclude the presence or addition of one or more other features, wholes, steps, components, or combinations thereof.

[0052] Many features and advantages of these embodiments are apparent from this detailed description, and therefore the appended claims are intended to cover all such features and advantages of these embodiments that fall within their true spirit and scope. Furthermore, since many modifications and alterations will readily occur to those skilled in the art, the embodiments of the invention are not intended to be limited to the precise structures and operations illustrated and described, but rather to encompass all suitable modifications and equivalents falling within their scope.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0054] The parts of this invention not described in detail are techniques known to those skilled in the art.

Claims

1. A connection device for measuring conductive slip rings, characterized in that, include The connecting base includes a locking seat and a connecting plate. The locking seat includes two pin slots arranged parallel to each other along its length. Each pin slot includes a plurality of pin positioning elements arranged at fixed intervals. Each pin positioning element includes a pin locking element on one side. All pin locking elements in each pin slot are fixedly connected to a handle. A spring is installed at one end of the handle. Pushing the handle compresses the spring, causing the pin locking elements on the handle to move closer to the pin positioning elements to a locked state. Pulling the handle releases the spring, causing all pin locking elements on the handle to move away from the pin positioning elements to an unlocked state. The connecting plate includes a plurality of pins. Each pin is connected to a test equipment connector via a printed line. The pin positioning elements of the locking seat are connected one-to-one with the pins on the connecting plate. A 1-to-2 lead wire connection assembly is provided. The 1-to-2 lead wire connection assembly is a PCB printed circuit board. Two rows of parallel pins are soldered on the PCB printed circuit board. Between the solder joints of the two rows of pins is a row of pads. Each pad is soldered to a lead wire of a conductive slip ring. The pads are connected to one of the solder joints of the two rows of pins through two printed lines. The pins of the 1-to-2 lead wire connection assembly are connected to the pin positioning parts of the locking seat in a one-to-one correspondence.

2. The connecting device according to claim 1, characterized in that, The leads of the conductive slip ring are grouped, with each group corresponding to a pair of PCB printed circuit boards and locking seats. The number of pads on a single PCB printed circuit board is greater than or equal to the number of conductive slip ring channels to be tested within the corresponding group.

3. The connecting device according to claim 1, characterized in that, The spacing between each row of pins on the PCB is equal to the spacing of the pin positioning components in the pin slot of the locking seat; the two pin slots have a certain width, so that the spacing between the two rows of pins has a certain design margin.

4. The connecting device according to claim 1, characterized in that, The maximum width of the PCB printed circuit board shall not exceed the diameter of the conductive slip ring end face.

5. The connecting device according to claim 1, characterized in that, The PCB includes a LINE area and a FIXED area. The LINE area is located along the length of the PCB and between a row of pads and a row of pins. The FIXED area is located at one end of the PCB. The conductive slip ring leads soldered on the PCB are routed in the LINE area and are wound and fixed in the FIXED area.

6. The connecting device according to claim 1, characterized in that, The locking seat and PCB printed circuit board are modularly designed according to the channel grouping of the conductive slip ring and the number of channels to be tested. The resulting locking seat and PCB printed circuit board module has a set number of pin positioning parts and pins.

7. The connecting device according to claim 1, characterized in that, The rotor and stator odd-numbered and even-numbered channel structures of the conductive slip ring are not independent. The number of channels to be measured in the rotor or stator is n. The design of the locking seat pin positioning parts corresponding to the rotor or stator is 2n, and the number of PCB printed circuit board pins corresponding to the locking seat is 2n.

8. The connecting device according to claim 1, characterized in that, The conductive slip ring rotor and stator have independent odd-numbered and even-numbered channel structures. The number of channels to be measured for the rotor or stator with odd or even numbered channels is n. The locking seat pin positioning components connected to the rotor or stator with odd or even numbered channels are designed to be 2n, and the PCB printed circuit board pins corresponding to the locking seat are 2n.

9. The connecting device according to claim 1, characterized in that, The pin locking components in the two pin slots are fixedly connected to a lever, and the lever controls the pin locking components in the two pin slots to lock synchronously.

10. A conductive slip ring, characterized in that, The connecting device described in any one of claims 1 to 9 is used.

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