Modular electromagnetic braking device

Abstract

The utility model discloses a modularization electromagnetic brake device, including yoke body, rotor connecting assembly and apron, the integrated electromagnetic coil is installed in yoke body inside, the integrated electromagnetic coil has the integrated plug -in device of protruding yoke body, yoke body and rotor connecting assembly between have the friction plate of lift movement, yoke body is installed with a plurality of spring of cooperation with friction plate, rotor connecting assembly has the brake seat board of cooperation with friction plate, and apron is sleeved in rotor connecting assembly outside and is connected with yoke body. The utility model integrated electromagnetic coil forms the integrated plug -in device on the coil winding reel end side, realizes the centralized accurate taut positioning of the enamel wire starting end and the end of winding on the coil winding reel through integrated plug -in device, and the close positioning electric connection of inner connecting terminal and enamel wire riveting pressure type, has realized the modularization, standardization assembly purpose of electromagnetic brake system, has improved assembly quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic braking, and in particular to a modular electromagnetic braking device. Background Technology

[0002] Electromagnetic braking systems are core braking components installed on power components (such as the power output shafts of high-precision servo motors and stepper motors). An electromagnetic braking system includes components connected to the power shaft, power friction mating plates, friction plates, and electromagnetic coils. Existing electromagnetic braking systems lack modular components, especially the electromagnetic coils, which lack modular and standardized components, leading to complex assembly. The core component of an electromagnetic braking system is the electromagnetic coil. The electromagnetic brake achieves braking and release control by electromagnetically attracting or releasing the armature through the switching of the electromagnetic coil's power (the electromagnetic coil generates electromagnetic force when energized). Existing electromagnetic braking systems typically have an electromagnetic coil consisting of a winding frame and enameled copper wire wound in a winding groove on the winding frame. The two ends of the enameled copper wire are electrically connected via flexible wires, serving as an input end and an output end. The input end of the enameled copper wire is connected to an input pin by soldering, and the output end is connected to an output pin by soldering. The input and output pins are led out from the electromagnetic braking system housing and then connected to an external power supply, also using soldering methods. This leads to poor reliability and consistency of the connection. Manual welding is prone to quality problems such as incomplete welding and cold welding. Under long-term vibration conditions, the weld points and wires are prone to fatigue fracture (electromagnetic coil braking is easily affected by the braking vibration of electromagnetic brake operation, and there is a risk of detachment at the welding position, which leads to frequent failures or braking failure). The quality fluctuation of manual welding operation makes it difficult to guarantee the consistency of product performance. Utility Model Content

[0003] The purpose of this utility model is to provide a modular electromagnetic braking device. An integrated electromagnetic coil is formed on the end side of the coil winding disc to construct an integrated plug-in device. The integrated plug-in device realizes the concentrated and precise tensioning and positioning of the starting and ending ends of the enameled wire wound on the coil winding disc, as well as the internal connecting terminal and the enameled wire to be riveted and tightly positioned electrically connected. The core component, the integrated electromagnetic coil, forms a modular assembly. The integrated electromagnetic coil, friction plate, rotor brake component, power matching kit, and cover plate all form modular units of the electromagnetic braking system, realizing the modular and standardized assembly of the electromagnetic braking system and improving assembly quality and efficiency.

[0004] The objective of this utility model is achieved through the following technical solution: A modular electromagnetic braking device includes a yoke body, a rotor connecting assembly, and a cover plate. An integrated electromagnetic coil is installed inside the yoke body. The integrated electromagnetic coil has an integrated plug-in device that extends out of the yoke body. A friction plate with lifting and lowering motion is provided between the yoke body and the rotor connecting assembly. The yoke body is equipped with a plurality of springs that cooperate with the friction plate. The rotor connecting assembly has a brake seat plate that cooperates with the friction plate. The cover plate is limited and fitted outside the rotor connecting assembly and connected to the yoke body.

[0005] To better realize this utility model, the magnetic yoke body includes a circular shell part and a central coil mating part located inside the circular shell part. The integrated electromagnetic coil is composed of a coil winding disc and an integrated plug-in device formed on the end side of the coil winding disc. The coil winding disc is correspondingly installed on the central coil mating part. The circular shell part of the magnetic yoke body has several spring mounting holes distributed circumferentially, and the springs are mated and installed in the spring mounting holes. When the integrated electromagnetic coil is de-energized, all the springs jointly support the friction plate and the brake seat plate to fit tightly together for friction braking. When the integrated electromagnetic coil is energized, the integrated electromagnetic coil generates electromagnetic force to attract the friction plate and the brake seat plate to release the brake. The integrated electromagnetic coil generates electromagnetic force to overcome the elastic force of all the springs.

[0006] Preferably, the rotor connection assembly comprises a rotor brake and a power mating kit located inside the rotor brake, the brake seat plate is located on the end plane of the rotor brake, and the power mating kit has a power bushing in the middle; the cover plate is circumferentially distributed with a plurality of equal-height columns, and the equal-height columns are located in the space between the cover plate and the friction plate.

[0007] Preferably, the integrated plug-in device has a terminal receiving cavity A and a terminal receiving cavity B arranged vertically side by side. The upper part of the terminal receiving cavity A has a horizontally penetrating wire-passing groove A, and the upper part of the terminal receiving cavity B has a horizontally penetrating wire-passing groove B. Enamelled wire is wound in the winding space of the coil winding disc. An inner connecting terminal A is plugged into the terminal receiving cavity A. The first end of the enamelled wire passes horizontally through the wire-passing groove A and is electrically connected to the inner connecting terminal A plugged into the terminal receiving cavity A. An inner connecting terminal B is plugged into the terminal receiving cavity B. The second end of the enamelled wire passes horizontally through the wire-passing groove B and is electrically connected to the inner connecting terminal B plugged into the terminal receiving cavity B. The inner connecting terminal A has an outer terminal slot A, and an outer terminal A is electrically plugged into the outer terminal slot A. The inner connecting terminal B has an outer terminal slot B, and an outer terminal B is electrically plugged into the outer terminal slot B.

[0008] Preferably, the coil winding reel includes two reel side plates and the winding space located between the two reel side plates. The integrated plug-in device is vertically constructed on the outer side surface of one of the reel side plates of the coil winding reel. The integrated plug-in device and the coil winding reel are integrally injection molded using a composite material of polybutylene terephthalate and glass fiber.

[0009] Preferably, the insertion interface A of the terminal receiving cavity A is located on the top surface of the integrated plug-in device, and the inner connecting terminal A is inserted into the terminal receiving cavity A from the insertion interface A. The inner connecting terminal A has a set of elastic electrical connecting arm assemblies A that are tightly and fixedly connected to the first end of the enameled wire. The insertion interface B of the terminal receiving cavity B is located on the top surface of the integrated plug-in device, and the inner connecting terminal B is inserted into the terminal receiving cavity B from the insertion interface B. The inner connecting terminal B has a set of elastic electrical connecting arm assemblies B that are tightly and fixedly connected to the second end of the enameled wire. The inner connecting terminal A has an inner connecting end A at its lower part, and an elastic cavity A in the middle of the inner connecting end A. The inner connecting end A is elastically connected to the elastic electrical connecting arm assembly A placed in the elastic cavity A. The inner connecting terminal B has the same structure as the inner connecting terminal A.

[0010] Preferably, the flexible electrical connection arm assembly A consists of two flexible electrical connection arms A arranged symmetrically in a figure-eight configuration. The two flexible electrical connection arms A form a wire wedge-shaped insertion area A. The flexible electrical connection arm assembly A has a stripping blade near the wire wedge-shaped insertion area A for stripping the insulating varnish from the surface of the enameled wire. The upper part of the inner connection terminal A has an outer connection elastic end A. The middle part of the outer connection elastic end A has an outer terminal slot A for elastic electrical contact. The inner connection terminal A has protrusions on both sides of its middle part with undercuts A. The terminal receiving cavity A has undercut positioning grooves corresponding to the undercuts A. The inner connection terminal B has the same structure as the inner connection terminal A.

[0011] Preferably, the two elastic electrical connecting arms A of the elastic electrical connecting arm assembly A have positioning grooves for clamping and positioning the first end of the enameled wire, or the elastic cavity A of the inner connecting end A has a positioning groove for positioning the first end of the enameled wire near the elastic electrical connecting arm assembly A.

[0012] Preferably, the integrated plug-in device has a wire positioning groove A and a wire positioning groove B on the side near the winding space. The wire positioning groove A is connected to the wire guide slot A, and the wire positioning groove B is connected to the wire guide slot B. An inverted buckle C is fixed on both sides of the integrated plug-in device.

[0013] Preferably, the integrated plug-in device has a connector A and a connector B fixed on the side away from the winding space. The connector A is located at the bottom end of the wire guide slot A, and the first end of the enameled wire is fixedly connected to the connector A. The connector B is located at the bottom end of the wire guide slot B, and the second end of the enameled wire is fixedly connected to the connector B.

[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects: (1) The core component of this utility model is an integrated electromagnetic coil to form a modular assembly. The integrated electromagnetic coil, friction plate, rotor brake component, power matching kit, and cover plate all form a modular unit of the electromagnetic braking device, realizing the modular and standardized assembly purpose of the electromagnetic braking device and improving the assembly quality and efficiency. After assembly, it constitutes the electromagnetic braking device of this utility model. All springs are compressed and jointly support the friction plate and brake seat plate to fit tightly together for friction braking. When the integrated electromagnetic coil is energized, the integrated electromagnetic coil generates electromagnetic force to attract the friction plate and brake seat plate to release the brake. The integrated electromagnetic coil generates electromagnetic force to overcome the elastic force of all springs.

[0015] (2) The present invention integrates an electromagnetic coil with an integrated plug-in device formed on the end side of the coil winding disc. The integrated plug-in device realizes the concentrated and precise tensioning and positioning of the starting and ending ends of the enameled wire wound on the coil winding disc, as well as the tight positioning electrical connection between the internal connection terminal and the enameled wire by riveting. The integrated plug-in device achieves high reliability connection between the internal and external parts without soft wires or welding. It realizes the significant technical effect that the external connection terminal of the overall structure can be flexibly plugged and assembled. It has the advantages of small structure, novelty and high reliability, flexibility and convenience, and significantly improved overall performance. It solves the problems of loose structure of existing electromagnetic coils, need for manual welding of leads, and easy detachment of welding points due to vibration. It is conducive to the standardization and compact development of electromagnetic coils.

[0016] (3) The integrated electromagnetic coil inner connection terminal of this utility model is inserted into the integrated plug-in device, realizing the built-in electrical connection structure that is tightly positioned and plugged into the end of the enameled wire. The outer terminal slot of the inner connection terminal is electrically plugged into the outer terminal. In this way, the external connection adopts a fast and flexible electrical plug-in connection, which is more conducive to the standardized production and assembly of the product plug-in. The connection structure after standardization is more robust and reliable, the assembly is more flexible, and the assembly efficiency is higher. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of the modular electromagnetic braking device of this utility model; Figure 2 This is an exploded view of the modular electromagnetic braking device in the embodiment; Figure 3 for Figure 1A schematic diagram of the three-dimensional structure after removing the magnetic yoke body; Figure 4 for Figure 1 A schematic diagram of the structure after cross-section; Figure 5 for Figure 1 A schematic diagram of the structure of the central magnetic yoke from a top view. Figure 6 This is a schematic diagram of the integrated electromagnetic coil in the embodiment; Figure 7 for Figure 6 A structural diagram from another perspective; Figure 8 for Figure 6 A partially enlarged structural diagram of the integrated plug-in device; Figure 9 for Figure 8 A schematic diagram of the integrated plug-in device; Figure 10 This is a schematic diagram illustrating a usage state in which the inner connection terminal A is electrically connected to the enameled wire for positioning and fixing in an embodiment. Figure 11 This is a schematic diagram of the structure of the connecting terminal A in the embodiment.

[0018] The names corresponding to the reference numerals in the attached figures are as follows: 1 – Magnetic yoke body, 10 – Central coil mating part, 11 – Circular shell part, 2 – Integrated electromagnetic coil, 21 – Coil winding disc, 211 – Disc side plate, 212 – Winding space, 22 – Integrated plug-in device, 23 – Terminal receiving cavity A, 231 – Wire passing positioning groove A, 2311 – Connecting seat A, 232 – Wire slot A, 24 – Terminal receiving cavity B, 241 – Wire passing groove B, 2411 – Connecting seat B, 242 – Wire positioning groove B, 25 – Inverted C, 26 – Enamelled wire, 261 – The first One end, 262 - Second end, 27 - Inner connection terminal A, 270 - External terminal slot A, 271 - External connection elastic end A, 272 - Inner connection end A, 2721 - Elastic cavity A, 273 - Elastic electrical connection arm A, 2731 - Wire wedge insertion area A, 274 - Inverted A, 28 - Inner connection terminal B, 280 - External terminal slot B, 3 - Friction plate, 4 - Rotor brake component, 41 - Brake seat plate, 5 - Power matching kit, 6 - Cover plate, 7 - Spring, 8 - Spring mounting hole, 9 - Equal height column. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the embodiments: Example like Figures 1-5As shown, a modular electromagnetic braking device includes a magnetic yoke body 1, a rotor connecting assembly, and a cover plate 6. The rotor connecting assembly consists of a rotor braking element 4 and a power engagement kit 5 located inside the rotor braking element 4. See [reference needed]. Figure 2 In this preferred embodiment, the rotor brake 4 includes an end seat and a cylinder located on the end seat. The rotor connecting assembly has a brake seat plate 41 that cooperates with the friction plate 3. The brake seat plate 41 is located on the end plane of the rotor brake 4 (i.e., the end plane of the end seat). The power coupling kit 5 has a power bushing in the middle. The inner wall of the cylinder of the rotor brake 4 and the outer wall of the power coupling kit 5 are meshed by gears. The rotor brake 4 and the power coupling kit 5 rotate synchronously to form a rotating assembly. The power coupling kit 5 has a bushing. The bushing of the power coupling kit 5 is connected to the power shaft of a high-precision servo motor or stepper motor. The rotor connecting assembly is connected to the power shaft of the servo motor or stepper motor and rotates. Under the action of the spring 7 and the integrated electromagnetic coil 2 of the modular electromagnetic braking device of this utility model, braking and releasing braking are performed.

[0020] like Figure 1 , Figure 4 As shown, an integrated electromagnetic coil 2 is installed inside the yoke body 1. The integrated electromagnetic coil 2 has an integrated plug-in device 22 that extends out of the yoke body 1. There is a friction plate 3 with lifting and lowering motion between the yoke body 1 and the rotor connection assembly (see...). Figure 4 There is a lifting space between the magnetic yoke body 1 and the rotor connecting assembly, and the friction plate 3 can move up and down in the lifting space. The magnetic yoke body 1 is equipped with several springs 7 that cooperate with the friction plate 3. The cover plate 6 is limited and fitted outside the rotor connecting assembly and connected to the magnetic yoke body 1.

[0021] like Figures 1-4 As shown, the magnetic yoke body 1 includes a circular shell portion 11 and a central coil mating portion 10 located inside the circular shell portion 11. The integrated electromagnetic coil 2 consists of a coil winding disc 21 and an integrated plug-in device 22 formed and constructed on the end side of the coil winding disc 21. The coil winding disc 21 is correspondingly fitted onto the central coil mating portion 10. The circular shell portion 11 of the magnetic yoke body 1 has several spring mounting holes 8 distributed circumferentially, and springs 7 are fitted into the spring mounting holes 8. When the integrated electromagnetic coil 2 is de-energized, all the springs 7 together hold the friction plate 3 and the brake seat plate 41 in close contact for friction braking; when the integrated electromagnetic coil 2 is energized, the integrated electromagnetic coil 2 generates electromagnetic force to attract the friction plate 3 and the brake seat plate 41 to release the brake, and the integrated electromagnetic coil 2 generates electromagnetic force to overcome the elastic force of all the springs 7. The cover plate 6 is provided with several equal-height columns 9 in a circular arrangement. The equal-height columns 9 are located in the space between the cover plate 6 and the friction plate 3. All the equal-height columns 9 are used to limit the friction plate 3 to the same braking plane. That is, when all the springs 7 jointly support the friction plate 3 and the brake seat plate 41 to fit tightly together for friction braking, all the equal-height columns 9 play a limiting role, so that the friction plate 3 is limited to the same braking plane.

[0022] like Figure 6 As shown, the integrated electromagnetic coil 2 consists of a coil winding disc 21 and an integrated connector 22 formed on the end side of the coil winding disc 21. The coil winding disc 21 has a winding space 212 (the winding space 212 is used to wind enameled wire 26 to form the electromagnetic coil body). The coil winding disc 21 includes two disc side plates 211 and a winding space 212 located between the two disc side plates 211. The integrated connector 22 is vertically constructed on the outer side of one of the disc side plates 211 of the coil winding disc 21 (see...). Figure 6 The insertion direction of the inner connection terminal of the integrated plug-in device 22 is perpendicular to the plane direction of the disk side plate 211, and the insertion direction of the inner connection terminal of the integrated plug-in device 22 is the overall height direction of the integrated plug-in device 22; the integrated plug-in device 22 can be set on the outer side of any disk side plate 211, and the integrated plug-in device 22 serves as an integrated connection conversion device for the first end 261 and the second end 262 of the enameled wire 26. Preferably, the integrated plug-in device 22 and the coil winding disk 21 are integrally injection molded from a composite material of polybutylene terephthalate and glass fiber. Figure 6 , Figure 7 As shown, the integrated plug-in device 22 has a terminal receiving cavity A23 and a terminal receiving cavity B24 arranged vertically side by side facing the winding space 212. In this utility model, the integrated plug-in device 22 is preferably used as an integrated connection conversion device for the first end 261 and the second end 262 of the enameled wire 26. The terminal receiving cavity A23 serves as the positioning electrical connection cavity for the first end 261 of the enameled wire 26, and the terminal receiving cavity B24 serves as the positioning electrical connection cavity for the second end 262 of the enameled wire 26. Of course, the integrated plug-in device 22 can be designed as two, with the two integrated plug-in devices 22 (each integrated plug-in device 22 has a terminal receiving cavity) located at different positions on the coil winding disc 21.

[0023] like Figure 6 , Figure 7 As shown, a transverse through-hole slot A231 (as shown) is opened at the upper part of the terminal receiving cavity A23. Figure 6 As shown, in a top view, the wire guide slot A231 of the terminal receiving cavity A23 and the insertion direction of the inner connecting terminal of the terminal receiving cavity A23 are in a "+" shape. The insertion direction of the inner connecting terminal of the terminal receiving cavity A23 is perpendicular to the plane of the disk side plate 211 of the coil winding disk 21, and the lateral direction is parallel to the plane of the disk side plate 211 of the coil winding disk 21. The wire guide slot A231 is opened through the lateral direction. The upper part of the terminal receiving cavity B24 has a horizontally opened wire guide slot B241 (as shown). Figure 6As shown, in a top view, the insertion direction of the wire guide slot B241 of the terminal receiving cavity B24 and the insertion direction of the inner connecting terminal of the terminal receiving cavity B24 are in a "+" shape. The insertion direction of the inner connecting terminal of the terminal receiving cavity B24 is perpendicular to the plane of the disk side plate 211 of the coil winding disk 21, and the lateral direction is parallel to the plane of the disk side plate 211 of the coil winding disk 21. The winding space 212 of the coil winding disk 21 is correspondingly wound with enameled wire 26. The terminal receiving cavity A23 is fitted with an inner connecting terminal A27. The first end 261 of the enameled wire 26 passes laterally through the wire guide slot A231 and is electrically connected to the inner connecting terminal A27 inserted in the terminal receiving cavity A23. The terminal receiving cavity B24 is fitted with an inner connecting terminal B28. The second end 262 of the enameled wire 26 passes laterally through the wire guide slot B241 and is electrically connected to the inner connecting terminal B28 inserted in the terminal receiving cavity B24.

[0024] like Figures 9-11 As shown, the inner connecting terminal A27 has an outer terminal slot A270 (for electrical insertion with the outer terminal A, thus enabling a quick and flexible electrical connection). The inner connecting terminal B28 has an outer terminal slot B280 (for electrical insertion with the outer terminal B). Preferably, the upper part of the inner connecting terminal A27 has an outer connecting elastic end A271, and the middle part of the outer connecting elastic end A271 has an outer terminal slot A270 for flexible electrical contact. The inner connecting terminal A27 has protrusions on both sides of the middle part with undercuts A274. The terminal receiving cavity A23 has undercut positioning grooves corresponding to the undercuts A274 (the undercut positioning grooves and undercuts A274 interact to achieve locking when inserted, preventing the inner connecting terminal A27 from exiting the terminal receiving cavity A23). The inner connecting terminal B28 has the same structure as the inner connecting terminal A27, and will not be described further here.

[0025] like Figures 6 to 11As shown, the insertion interface A of the terminal receiving cavity A23 is located on the top surface of the integrated plug-in device 22. The inner connecting terminal A27 is inserted into the terminal receiving cavity A23 through the insertion interface A. The inner connecting terminal A27 has a set of elastic electrical connecting arm assemblies A that are tightly and fixedly connected to the first end 261 of the enameled wire 26. The insertion interface B of the terminal receiving cavity B24 is located on the top surface of the integrated plug-in device 22. The inner connecting terminal B28 is inserted into the terminal receiving cavity B24 through the insertion interface B. The inner connecting terminal B28 has a set of elastic electrical connecting arm assemblies B that are tightly and fixedly connected to the second end 262 of the enameled wire 26. The inner connecting terminal A27 and the inner connecting terminal B28 of this utility model have the same structure. The internal connection terminal A27 has an external terminal slot A70 (for electrical connection with external terminal A, which allows for quick and flexible electrical connection, facilitating standardized production and assembly of the product. The standardized connection structure is more robust and reliable, and assembly is more flexible and efficient). The internal connection terminal B28 has an external terminal slot B280 (for electrical connection with external terminal B, which allows for quick and flexible electrical connection, facilitating standardized production and assembly of the product. The standardized connection structure is more robust and reliable, and assembly is more flexible and efficient).

[0026] The internal connection terminal A27 of this utility model has the same structure as the internal connection terminal B28. Taking the structure of the internal connection terminal A27 as an example, its structure is as follows: The lower part of the internal connection terminal A27 has an internal connection end A272, the middle part of the internal connection end A272 has an elastic cavity A2721, and the internal connection end A272 is elastically connected to an elastic electrical connection arm assembly A (such as...) placed in the elastic cavity A2721. Figure 10 As shown, the flexible electrical connection arm assembly A extends from the end of the inner connection end A272 into the elastic cavity A2721, forming an arc-shaped elastic structure. The flexible electrical connection arm assembly A consists of two flexible electrical connection arms A273 arranged symmetrically in a figure-eight configuration (the two flexible electrical connection arms A273 are as follows). Figure 5(As shown) The two flexible electrical connection arms A273 of the flexible electrical connection arm assembly A form a wire wedge-shaped insertion area A2731. The flexible electrical connection arm assembly A has a stripping blade near the wire wedge-shaped insertion area A2731 for stripping the insulating varnish on the surface of the enameled wire 26. For example, a sharp scraper or a conventional method of piercing the insulation varnish with enameled wire can be used to connect the wires. Alternatively, the flexible connecting arms A273 can be left untreated, and the elastic clamping action of the two flexible connecting arms A273, along with the insertion of the inner connecting terminal A27, will naturally peel off the insulation varnish of the enameled wire 26 and achieve a tight electrical connection. After the first end 261 of the enameled wire 26 passes laterally through the wire slot A231 for positioning and fixing, the first end 261 of the enameled wire 26 spans the terminal receiving cavity A23. When the inner connecting terminal A27 is inserted, the first end 261 of the enameled wire 26 will be located in the wire wedge-shaped insertion area A2731. As the inner connecting terminal A27 is inserted, the two flexible connecting arms A273 of the flexible connecting arm assembly A will rub off the insulation varnish on the outside of the enameled wire 26, ultimately achieving the positioning and fixing of the enameled wire 26 by the inner connecting terminal A27 and the tight electrical connection with the enameled wire 26. The internal connecting terminal B28 of this utility model has the same structure as the internal connecting terminal A27. The internal connecting terminal B28 adopts the same structure and technical principle as the internal connecting terminal A27, and will not be described again here.

[0027] In some embodiments, the two elastic electrical connecting arms A273 of the elastic electrical connecting arm assembly A have positioning grooves for clamping and positioning the first end 261 of the enameled wire 26 (preferably, the positioning groove is a wire-holding groove formed on the elastic electrical connecting arm A273, so that when the inner connecting terminal A27 is inserted into place, the first end 261 of the enameled wire 26 is firmly fixed in the common wire-holding groove of the two elastic electrical connecting arms A273, and at the same time, the first end 261 of the enameled wire 26 is tightly positioned and electrically connected to the two elastic electrical connecting arms A273); the elastic cavity A2721 of the inner connecting end A272 near the elastic electrical connecting arm assembly A also has a positioning groove for positioning the first end 261 of the enameled wire 26. The positioning groove of the elastic electrical connecting arm assembly A and the positioning groove of the inner connecting end A272 form a circular groove slightly smaller than the wire diameter of the enameled wire 26, so that under the elastic positioning and fixing action of the two elastic electrical connecting arms A273, the enameled wire 26 is firmly fixed in the circular groove (e.g. Figure 10 As shown, the space between the ends of the two flexible electrical connecting arms A273 and the flexible cavity A2721 is located in the space between them, while the inner connecting terminal A27 is also stably and reliably electrically connected to the enameled wire 26.

[0028] like Figures 6-8As shown, the integrated plug-in device 22 has a wire positioning groove A232 and a wire positioning groove B242 on the side near the winding space 212. The wire positioning groove A232 is connected to the wire guide slot A231 (the wire positioning groove A232 serves to recess and position the enameled wire 26 for assembly, making the storage more aesthetically pleasing after assembly. Preferably, a wire hole corresponding to the wire positioning groove A232 can be opened through the side plate 211 of the reel; the wire guide slot A231 is narrower than the wire positioning groove A232 and is used to accurately position the first end 261 of the enameled wire 26). The wire positioning groove B242 is connected to the wire guide slot B241 (the wire positioning groove B242 serves to recess and position the enameled wire 26 for assembly. Preferably, a wire hole corresponding to the wire positioning groove B242 can be opened through the side plate 211 of the reel).

[0029] like Figure 8 , Figure 9 As shown, the integrated plug-in device 22 has a connector A2311 and a connector B2411 fixed on the side away from the winding space 212. The connector A2311 is located at the bottom of the wire guide slot A231, and the first end 261 of the enameled wire 26 is fixedly connected to the connector A2311. Preferably, the first end 261 of the enameled wire 26 is fixed to the connector A2311, so that the first end 261 of the enameled wire 26 spans the terminal receiving cavity A23. One side of the first end 261 of the enameled wire 26 is connected to the connector A2311 and locked, while the other side of the first end 261 of the enameled wire 26 is wound in the winding space 212 of the coil winding disc 21. Both sides of the first end 261 of the enameled wire 26 are constrained, ensuring that the inner connecting terminal A27 is smoothly plugged in and securely electrically connected. This ensures the precise and taut positioning of the enameled wire 26 at the riveting point. Through the piercing riveting of the inner connecting terminal A27, mechanical fixing and electrical connection are completed in one go. Connector B2411 is located at the bottom of wire guide slot B241, and the second end 262 of enameled wire 26 is fixedly connected to connector B2411. Inverted clips C25 are fixed on both sides of integrated plug-in device 22. The inverted clips C25 facilitate stable and reliable connection between integrated plug-in device 22 and other components (the inverted clips C25 prevent connection from retraction; they have a guide slope and a locking plane, allowing for reliable snap-fit ​​connection with the corresponding slot on the inner wall of the magnetic yoke, making assembly convenient and the connection secure).

[0030] In practical use of this invention, the first end 261 and the second end 262 of the enameled wire 26 can correspond to the input end or output end of the enameled wire 26, as shown in the following example: the first end 261 of the enameled wire 26 corresponds to the input end (or starting end) of the enameled wire 26, and the second end 262 of the enameled wire 26 corresponds to the output end (or terminal end) of the enameled wire 26. The first end 261 and the second end 262 of the enameled wire 26 of this invention are connected in a sealed, airtight electrical connection within the integrated plug-in device 22, achieving a low-resistance, high-reliability electrical connection.

[0031] The integrated plug-in device 22 and the coil winding reel 21 are integrally injection molded using a composite material of polybutylene terephthalate and glass fiber (preferably, the composite material of polybutylene terephthalate and +30% glass fiber has good insulation, mechanical strength and heat resistance). The internal connection terminal A27 and the internal connection terminal B28 are made of phosphor bronze alloy. The winding space 212 of the coil winding reel 21 is used to wind the enameled wire 26, and the first end 61 and the second end 262 of the enameled wire 6 are left at the position of the integrated plug-in device 22. The first end 261 of the enameled wire 26 is attached to the surface of the integrated plug-in device 22 and passes through the wire guide slot A231 to be fixed to the other side of the integrated plug-in device 22. The internal connection terminal A27 is correspondingly inserted into the terminal receiving cavity A23 and is tightly positioned and electrically connected to the first end 261 of the enameled wire 26. The second end 262 of the enameled wire 26 is passed through the wire guide slot B241 and fixed to the other side of the integrated connector 22. The inner connection terminal B28 is correspondingly inserted into the terminal receiving cavity B24 and is tightly positioned and electrically connected to the second end 262 of the enameled wire 26. The outer terminal A is electrically inserted into the outer terminal slot A270 of the inner connection terminal A27, and the outer terminal B is electrically inserted into the outer terminal slot B280 of the inner connection terminal B28. The outer terminals A and B are electrically connected to an external power source.

[0032] First, install springs 7 in the spring mounting holes 8 of the yoke body 1. Then, assemble the modular integrated electromagnetic coil 2 onto the yoke body 1, allowing the integrated plug-in device 22 of the integrated electromagnetic coil 2 to extend from the holes of the yoke body 1. Figures 1-5As shown, other modular components (including friction plate 3, rotor brake 4, power coupling kit 5, and cover plate 6) are assembled sequentially. After assembly, they constitute the modular electromagnetic braking device of this utility model. All springs are compressed and work together to hold the friction plate 3 and brake seat plate 41 in close contact for friction braking. When the integrated electromagnetic coil 2 is de-energized, all springs 7 work together to hold the friction plate 3 and brake seat plate 41 in close contact for friction braking. When the integrated electromagnetic coil 2 is energized, the integrated electromagnetic coil 2 generates electromagnetic force to attract the friction plate 3 and brake seat plate 41 to release the brake. The integrated electromagnetic coil 2 generates electromagnetic force to overcome the elastic force of all springs 7. The power coupling kit 5 has a bushing, which is connected to the power shaft of the servo motor or stepper motor. The rotor connecting assembly is connected to the power shaft of the servo motor or stepper motor and rotates. Under the action of the springs 7 and the integrated electromagnetic coil 2 of this utility model's modular electromagnetic braking device, braking and releasing the brake are performed.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular electromagnetic braking device, characterized in that: The device includes a magnetic yoke body, a rotor connecting assembly, and a cover plate. An integrated electromagnetic coil is installed inside the magnetic yoke body. The integrated electromagnetic coil has an integrated plug-in device that extends out of the magnetic yoke body. There is a friction plate with lifting and lowering motion between the magnetic yoke body and the rotor connecting assembly. The magnetic yoke body is equipped with several springs that cooperate with the friction plate. The rotor connecting assembly has a brake seat plate that cooperates with the friction plate. The cover plate is limited and fitted outside the rotor connecting assembly and connected to the magnetic yoke body.

2. The modular electromagnetic braking device according to claim 1, characterized in that: The magnetic yoke body includes a circular shell portion and a central coil mating portion located inside the circular shell portion. The integrated electromagnetic coil consists of a coil winding disc and an integrated plug-in device formed on the end side of the coil winding disc. The coil winding disc is correspondingly installed on the central coil mating portion. The circular shell portion of the magnetic yoke body has several spring mounting holes distributed circumferentially, and the springs are mated and installed in the spring mounting holes. When the integrated electromagnetic coil is de-energized, all the springs together hold the friction plate and brake seat plate in close contact for friction braking. When the integrated electromagnetic coil is energized, the integrated electromagnetic coil generates electromagnetic force to attract the friction plate and brake seat plate to release the brake, and the integrated electromagnetic coil generates electromagnetic force to overcome the elastic force of all the springs.

3. A modular electromagnetic braking device according to claim 1, characterized in that: The rotor connection assembly consists of a rotor brake and a power engagement kit located inside the rotor brake. The brake seat plate is located on the end plane of the rotor brake, and the power engagement kit has a power bushing in the middle. The cover plate is circumferentially distributed with several equal-height columns, which are located in the space between the cover plate and the friction plate.

4. A modular electromagnetic braking device according to claim 2, characterized in that: The integrated connector has two vertically arranged terminal receiving cavities, A and B. Terminal receiving cavity A has a horizontally extending wire-passing slot A at its upper part, and terminal receiving cavity B has a horizontally extending wire-passing slot B at its upper part. Enamelled wire is wound into the winding space of the coil winding disc. An inner connecting terminal A is inserted into terminal receiving cavity A, and the first end of the enamelled wire passes horizontally through the wire-passing slot A and is electrically connected to the inner connecting terminal A inserted into terminal receiving cavity A. An inner connecting terminal B is inserted into terminal receiving cavity B, and the second end of the enamelled wire passes horizontally through the wire-passing slot B and is electrically connected to the inner connecting terminal B inserted into terminal receiving cavity B. The inner connecting terminal A has an outer terminal slot A, which is electrically connected to an outer terminal A. The inner connecting terminal B has an outer terminal slot B, which is electrically connected to an outer terminal B.

5. A modular electromagnetic braking device according to claim 4, characterized in that: The coil winding reel includes two reel side plates and the winding space located between the two reel side plates. The integrated plug-in device is vertically constructed on the outer side surface of one of the reel side plates of the coil winding reel. The integrated plug-in device and the coil winding reel are integrally injection molded using a composite material of polybutylene terephthalate and glass fiber.

6. A modular electromagnetic braking device according to claim 4, characterized in that: The insertion interface A of the terminal receiving cavity A is located on the top surface of the integrated plug-in device. The inner connecting terminal A is inserted into the terminal receiving cavity A through the insertion interface A. The inner connecting terminal A has a set of elastic electrical connecting arm assemblies A that are tightly and fixedly connected to the first end of the enameled wire. The insertion interface B of the terminal receiving cavity B is located on the top surface of the integrated plug-in device. The inner connecting terminal B is inserted into the terminal receiving cavity B through the insertion interface B. The inner connecting terminal B has a set of elastic electrical connecting arm assemblies B that are tightly and fixedly connected to the second end of the enameled wire. The inner connecting terminal A has an inner connecting end A at its lower part and an elastic cavity A in its middle part. The inner connecting end A is elastically connected to the elastic electrical connecting arm assembly A placed in the elastic cavity A. The inner connecting terminal B has the same structure as the inner connecting terminal A.

7. A modular electromagnetic braking device according to claim 6, characterized in that: The flexible electrical connection arm assembly A consists of two flexible electrical connection arms A arranged symmetrically in a figure-eight pattern. The two flexible electrical connection arms A form a wire wedge-shaped insertion area A. The flexible electrical connection arm assembly A has a stripping blade near the wire wedge-shaped insertion area A to strip the insulating varnish on the surface of the enameled wire. The upper part of the inner connection terminal A has an outer connection elastic end A. The middle part of the outer connection elastic end A has an outer terminal slot A for elastic electrical contact. The inner connection terminal A has protrusions on both sides of the middle part with undercuts A. The terminal receiving cavity A has undercut positioning grooves corresponding to the undercuts A. The inner connection terminal B has the same structure as the inner connection terminal A.

8. A modular electromagnetic braking device according to claim 7, characterized in that: The two elastic electrical connecting arms A of the elastic electrical connecting arm assembly A have positioning grooves for clamping and positioning the first end of the enameled wire, or the elastic cavity A of the inner connecting end A has a positioning groove for positioning the first end of the enameled wire near the elastic electrical connecting arm assembly A.

9. A modular electromagnetic braking device according to claim 4, characterized in that: The integrated plug-in device has a wire positioning groove A and a wire positioning groove B on the side near the winding space. The wire positioning groove A is connected to the wire guide slot A, and the wire positioning groove B is connected to the wire guide slot B. An inverted buckle C is fixed on both sides of the integrated plug-in device.

10. A modular electromagnetic braking device according to claim 4, characterized in that: The integrated plug-in device has a connector A and a connector B fixed on the side away from the winding space. The connector A is located at the bottom end of the wire guide slot A, and the first end of the enameled wire is fixedly connected to the connector A. The connector B is located at the bottom end of the wire guide slot B, and the second end of the enameled wire is fixedly connected to the connector B.

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