An integrated coil former device for an electromagnetic brake coil

Abstract

The utility model discloses an integrated coil framework device for electromagnetic brake coil, including the coil winding disc with the winding space, the integrated plug -in device of coil winding disc end side, integrated plug -in device vertical side -by -side has two terminal containing cavities, and every terminal containing cavity transversely has the wire clamping slot of opening, and the winding space of coil winding disc corresponds and is wound with the enameled wire, and the both ends of enameled wire end portion one -to -one is located in wire clamping slot, and the inner connecting terminal of enameled wire end portion electric connection is installed with the cooperation plug -in in terminal containing cavity. The utility model online coil winding disc end side shaping construction integrated plug -in device, through integrated plug -in device realizes the concentrated accurate tight positioning of enameled wire starting end and end of winding on coil winding disc, and the riveting pressure type close positioning electric connection of inner connecting terminal and enameled wire, has solved the problem, such as the existing electromagnetic coil loose structure, and welding position point is easy to fall off under vibration etc.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic coil structure, and in particular to an integrated coil frame device for electromagnetic brake coils. Background Technology

[0002] Electromagnetic brakes are core braking components in high-precision servo motors, stepper motors, and other drive power systems. The core component of an electromagnetic brake 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 coils consist 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 the input end and the output end, respectively. The input end of the enameled copper wire is connected to an input lead by welding, and the output end is connected to an output lead by welding. Both the input and output leads are connected manually by welding, which leads to poor reliability and consistency. Manual welding is prone to quality problems such as incomplete welds and cold welds. Furthermore, under long-term vibration conditions, the weld points and wires are prone to fatigue fracture (the braking operation of the electromagnetic coil is easily affected by the braking vibration of the electromagnetic brake operation, and there is a risk of detachment at the weld position, leading to frequent malfunctions or braking failure). The existing electromagnetic coils do not integrate the input and output leads into a single connecting component (i.e., the input and output ends of the enameled copper wire are separate, and the overall structure consists of many fragmented and separate components, with independent winding frames and independent terminal sheaths electrically connected by welding with flexible wires). When connecting to an external power source through the terminals, it is necessary to manually locate the input and output leads, which is inefficient. Generally, welding or other fixed electrical connection methods are used, which increases the risk of the connection points falling off.

[0003] In summary, the existing electromagnetic coils have complex and prone-to-detachment enameled copper wire connections. The internal and external connections of the electromagnetic coils are all welded, resulting in low reliability and low integration. At the same time, the dispersed structure limits the development space for miniaturization, compactness, and standardization. Therefore, there is an urgent need for in-depth structural innovation research and development. Utility Model Content

[0004] The purpose of this utility model is to provide an integrated coil frame device for electromagnetic brake coils. An integrated plug-in device is formed and constructed 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 and electrical connection between the internal connecting terminal and the enameled wire by riveting. It achieves high reliability of internal and external connection by integrating the device without soft wires or welding. It realizes the significant technical effect of flexible plug-in assembly of the external connecting terminal of the overall structure. It has the advantages of compact structure, novelty, high reliability, flexibility and convenience, and significantly improved overall performance.

[0005] The objective of this utility model is achieved through the following technical solution: An integrated coil frame device for an electromagnetic brake coil includes a coil winding disc with a winding space and an integrated plug-in device located at the end of the coil winding disc. The integrated plug-in device has two terminal receiving cavities arranged vertically side by side, and each terminal receiving cavity has a through-wire slot extending horizontally through it. Enamelled wire is wound in the winding space of the coil winding disc, and the two ends of the enamelled wire are placed in the through-wire slots of the terminal receiving cavities. An internal connection terminal that is electrically connected to the end of the enamelled wire is plugged into the terminal receiving cavity.

[0006] To better realize this utility model, the two terminal receiving cavities are terminal receiving cavity A and terminal receiving cavity B, respectively. The wire guide slot of terminal receiving cavity A is corresponding to wire guide slot A, and the wire guide slot of terminal receiving cavity B is corresponding to wire guide slot B. Terminal receiving cavity A is corresponding to the insertion and installation of internal connecting terminal A, and terminal receiving cavity B is corresponding to the insertion and installation of internal connecting terminal B. The first end of the enameled wire passes laterally through wire guide slot A and is electrically connected to the internal connecting terminal A inserted in terminal receiving cavity A. The second end of the enameled wire passes laterally through wire guide slot B and is electrically connected to the internal connecting terminal B inserted in terminal receiving cavity B.

[0007] Preferably, the integrated plug-in device and the coil winding disc are integrally injection molded from a composite material of polybutylene terephthalate and glass fiber; the inner connecting terminal A has an outer terminal slot A, in which an outer terminal A is electrically plugged in; the inner connecting terminal B has an outer terminal slot B, in which an outer terminal B is electrically plugged in.

[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.

[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.

[0010] Preferably, the inner connection terminal A has an inner connection end A at its lower part, an elastic cavity A in the middle of the inner connection end A, and the inner connection end A is elastically connected to the elastic electrical connection arm assembly A placed in the elastic cavity A. The elastic electrical connection arm assembly A consists of two elastic electrical connection arms A arranged symmetrically in a figure-eight pattern. The two elastic electrical connection arms A of the elastic electrical connection arm assembly A form a wire wedge-shaped insertion area A. The elastic electrical connection arm assembly A has a stripping blade near the wire wedge-shaped insertion area A for stripping the insulating varnish on the surface of the enameled wire. 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 inner connection terminal A has an outer connection elastic end A on its upper part, the outer connection elastic end A has an outer terminal slot A with elastic electrical contact in its middle part, the inner connection terminal A has protrusions on both sides of its middle part with buckles A, and the terminal receiving cavity A has a buckle positioning groove corresponding to the buckles A; the inner connection terminal B has the same structure as the inner connection terminal A.

[0013] 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.

[0014] 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. An inverted buckle C is fixed on both sides of the integrated plug-in device.

[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects: (1) This utility model forms an integrated plug-in device 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 end and the end end of the enameled wire wound on the coil winding disc, as well as the internal connection terminal and the enameled wire are riveted and tightly positioned electrical connection. The integrated plug-in device is integrated without soft wires and without welding to achieve a high reliability connection between the inside and outside. 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, novel and high reliability, high flexibility and convenience, and the overall performance is significantly improved.

[0016] (2) This utility model creatively designs an integrated coil frame structure, which solves the problems of loose structure of existing electromagnetic coils, need for manual welding of leads, and easy vibration and detachment of welding points. It is conducive to the standardization and compact development of electromagnetic coils. The internal 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 external terminal slot of the internal connection terminal is electrically plugged into the external 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 product plug-in. The connection structure after standardization is more robust and reliable, the assembly is more flexible, and the assembly efficiency is higher.

[0017] (3) The two elastic electrical connection arms of this utility model elastically clamp the end of the enameled wire. With the insertion of the inner connection terminal, the insulation varnish of the enameled wire is naturally peeled off and a tight positioning electrical connection is achieved. One side of the end of the enameled wire is connected to the connection seat and locked, while the other side of the end of the enameled wire is wound in the winding space of the coil winding disc. Both sides of the end of the enameled wire are constrained, ensuring that the inner connection terminal is smoothly inserted into place and a firm electrical connection is achieved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the integrated coil frame structure of this utility model; Figure 2 for Figure 1 A structural diagram from another perspective; Figure 3 for Figure 1 A partially enlarged structural diagram of the integrated plug-in device; Figure 4 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 5 for Figure 4 A schematic diagram of the structure of the inner connection terminal A.

[0019] The names corresponding to the reference numerals in the attached figures are as follows: 1 - Coil winding disc, 11 - Disc side plate, 12 - Winding space, 2 - Integrated plug-in device, 3 - Terminal receiving cavity A, 31 - Wire positioning groove A, 311 - Connecting seat A, 32 - Wire slot A, 4 - Terminal receiving cavity B, 41 - Wire slot B, 411 - Connecting seat B, 42 - Wire positioning groove B, 5 - Inverted C, 6 - Enamelled wire, 61 - First end, 62 - Second end, 7 - Inner connection terminal A, 70 - External terminal slot A, 71 - External connection elastic end A, 72 - Inner connection end A, 721 - Elastic cavity A, 73 - Elastic electrical connection arm A, 731 - Wire wedge-shaped insertion area A, 74 - Inverted A, 8 - Inner connection terminal B, 80 - External terminal slot B. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the embodiments: Example

[0021] like Figure 1 As shown, an integrated coil frame device for an electromagnetic brake coil includes a coil winding disc 1 with a winding space 12 and an integrated plug-in device 2 located at one end of the coil winding disc 1. The integrated plug-in device 2 has two terminal receiving cavities arranged vertically side by side (such as...). Figure 1 As shown, the two terminal receiving cavities are terminal receiving cavity A3 and terminal receiving cavity B4, respectively. Each terminal receiving cavity has a transverse through-hole for wire insertion, as shown. Figure 1 As shown, the wire guide slot of terminal receiving cavity A3 corresponds to wire guide slot A31, and the wire guide slot of terminal receiving cavity B4 corresponds to wire guide slot B41. The winding space 12 of the coil winding disc 1 is wound with enameled wire 6, and both ends of the enameled wire 6 are placed in the wire guide slots of the terminal receiving cavity. Internal connection terminals that are electrically connected to the ends of the enameled wire 6 are inserted and installed in the terminal receiving cavity. Figure 1 As shown, the two terminal receiving cavities are terminal receiving cavity A3 and terminal receiving cavity B4, respectively. The wire guide slot of terminal receiving cavity A3 is wire guide slot A31, and the wire guide slot of terminal receiving cavity B4 is wire guide slot B41. Terminal receiving cavity A3 is connected to the internal connecting terminal A7, and terminal receiving cavity B4 is connected to the internal connecting terminal B8. The first end 61 of the enameled wire 6 passes laterally through the wire guide slot A31 and is electrically connected to the internal connecting terminal A7 inserted in terminal receiving cavity A3. The second end 62 of the enameled wire 6 passes laterally through the wire guide slot B41 and is electrically connected to the internal connecting terminal B8 inserted in terminal receiving cavity B4.

[0022] like Figure 1 As shown, the coil winding reel 1 includes two reel side plates 11 and a winding space 12 located between the two reel side plates 11. The winding space 12 is used to wind enameled wire 6 to form the electromagnetic coil body. An integrated plug-in device 2 is vertically constructed on the outer edge of one of the reel side plates 11 of the coil winding reel 1 (see...). Figure 1 The insertion direction of the inner connection terminal of the integrated plug-in device 2 is perpendicular to the plane direction of the disk side plate 11, and the insertion direction of the inner connection terminal of the integrated plug-in device 2 is the overall height direction of the integrated plug-in device 2; the integrated plug-in device 2 can be set on any outer side of the disk side plate 11, and the integrated plug-in device 2 serves as an integrated connection conversion device for the first end 61 and the second end 62 of the enameled wire 6. Preferably, the integrated plug-in device 2 and the coil winding disk 1 are integrally injection molded from a composite material of polybutylene terephthalate and glass fiber.

[0023] like Figure 1As shown, the integrated plug-in device 2 has two terminal receiving cavities, A3 and B4, arranged vertically side-by-side facing the winding space 12. Preferably, the integrated plug-in device 2 serves as an integrated connection conversion device for the first end 61 and the second end 62 of the enameled wire 6. The terminal receiving cavity A3 serves as the positioning electrical connection cavity for the first end 61 of the enameled wire 6, and the terminal receiving cavity B4 serves as the positioning electrical connection cavity for the second end 62 of the enameled wire 6. Of course, two integrated plug-in devices 2 can be designed, each with a terminal receiving cavity, located at different positions on the coil winding disc 1. A horizontal through-hole slot A31 (such as...) is opened at the top of the terminal receiving cavity A3. Figure 1 As shown, in a top view, the wire guide slot A31 of the terminal receiving cavity A3 and the insertion direction of the inner connecting terminal of the terminal receiving cavity A3 form a cross shape. The insertion direction of the inner connecting terminal of the terminal receiving cavity A3 is perpendicular to the plane of the disk side plate 11 of the coil winding disk 1, and the lateral direction is parallel to the plane of the disk side plate 11 of the coil winding disk 1. The lateral through-hole is the wire guide slot A31; the upper part of the terminal receiving cavity B4 has a lateral through-hole slot B41 (as shown). Figure 1 As shown, in a top view, the insertion direction of the wire guide slot B41 of the terminal receiving cavity B4 and the insertion direction of the inner connecting terminal of the terminal receiving cavity B4 are in a "+" shape. The insertion direction of the inner connecting terminal of the terminal receiving cavity B4 is perpendicular to the plane of the disk side plate 11 of the coil winding disk 1, and the lateral direction is parallel to the plane of the disk side plate 11 of the coil winding disk 1.

[0024] like Figures 1-3 As shown, the winding space 12 of the coil winding disc 1 is correspondingly wound with enameled wire 6. An inner connecting terminal A7 is inserted into the terminal receiving cavity A3. The first end 61 of the enameled wire 6 passes laterally through the wire guide slot A31 and is electrically connected to the inner connecting terminal A7 inserted into the terminal receiving cavity A3. An inner connecting terminal B8 is inserted into the terminal receiving cavity B4. The second end 62 of the enameled wire 6 passes laterally through the wire guide slot B41 and is electrically connected to the inner connecting terminal B8 inserted into the terminal receiving cavity B4. The insertion interface A of the terminal receiving cavity A3 is located on the top surface of the integrated insertion device 2. The inner connecting terminal A7 is inserted into the terminal receiving cavity A3 from the insertion interface A, as shown... Figure 4 , Figure 5As shown, the inner connecting terminal A7 has a set of elastic electrical connecting arm assemblies A that are tightly and fixedly connected to the first end 61 of the enameled wire 6. The insertion interface B of the terminal receiving cavity B4 is located on the top surface of the integrated plug-in device 2. The inner connecting terminal B8 is inserted into the terminal receiving cavity B4 through the insertion interface B. The inner connecting terminal B8 has a set of elastic electrical connecting arm assemblies B that are tightly and fixedly connected to the second end 62 of the enameled wire 6. The inner connecting terminal A7 and the inner connecting terminal B8 of this utility model have the same structure. The internal connection terminal A7 has an external terminal slot A70 (for electrical connection with external terminal A, so that the external connection adopts a quick and flexible electrical connection, which is more conducive to the standardized production and assembly of product insertion. The standardized connection structure is more robust and reliable, and the assembly is more flexible and efficient). The internal connection terminal B8 has an external terminal slot B80 (for electrical connection with external terminal A, so that the external connection adopts a quick and flexible electrical connection, which is more conducive to the standardized production and assembly of product insertion. The standardized connection structure is more robust and reliable, and the assembly is more flexible and efficient).

[0025] The internal connection terminal A7 of this utility model has the same structure as the internal connection terminal B8. Taking the structure of the internal connection terminal A7 as an example, its structure is as follows: The lower part of the internal connection terminal A7 has an internal connection end A72, the middle part of the internal connection end A72 has an elastic cavity A721, and the internal connection end A72 is elastically connected to an elastic electrical connection arm assembly A (such as...) placed in the elastic cavity A721. Figure 5 As shown, the flexible electrical connection arm assembly A extends from the end of the inner connection end A72 into the elastic cavity A721, forming an arc-shaped elastic structure. The flexible electrical connection arm assembly A consists of two flexible electrical connection arms A73 arranged symmetrically in a figure-eight configuration (the two flexible electrical connection arms A73 are as follows). Figure 5As shown), the two flexible electrical connection arms A73 of the flexible electrical connection arm assembly A form a wire wedge-shaped insertion area A731. Near the wire wedge-shaped insertion area A731, the flexible electrical connection arm assembly A has a stripping blade for peeling the insulating varnish from the surface of the enameled wire 6 (e.g., using a sharp scraper, or using a conventional enameled wire piercing insulation varnish electrical connection technology structure; or the flexible electrical connection arms A73 are left untreated, and the elastic clamping action of the two flexible electrical connection arms A73, along with the insertion of the inner connection terminal A7, naturally allows the insulating varnish of the enameled wire 6 to be peeled off and...). (To achieve a tight-fitting electrical connection); after the first end 61 of the enameled wire 6 passes laterally through the wire guide slot A31 for positioning and fixation, the first end 61 of the enameled wire 6 spans the terminal receiving cavity A3. When the inner connecting terminal A7 is inserted, the first end 61 of the enameled wire 6 will be located within the wire wedge-shaped insertion area A731. As the inner connecting terminal A7 is inserted, the two elastic electrical connecting arms A73 of the elastic electrical connecting arm assembly A rub off the insulating varnish on the outside of the enameled wire 6, ultimately achieving the positioning and fixing of the enameled wire 6 by the inner connecting terminal A7 and a tight-fitting electrical connection with the enameled wire 6. The inner connecting terminal B8 of this utility model has the same structure as the inner connecting terminal A7, and the inner connecting terminal B8 adopts the same structure and technical principle as the inner connecting terminal A7, which will not be described again here.

[0026] In some embodiments, the two elastic electrical connecting arms A73 of the elastic electrical connecting arm assembly A have positioning grooves for clamping and positioning the first end 61 of the enameled wire 6 (preferably, the positioning groove is a wire-holding groove formed on the elastic electrical connecting arm A73, so that when the inner connecting terminal A7 is inserted into place, the first end 61 of the enameled wire 6 is firmly fixed in the common wire-holding groove of the two elastic electrical connecting arms A73, and at the same time, the first end 61 of the enameled wire 6 is tightly positioned and electrically connected to the two elastic electrical connecting arms A73). The elastic cavity A721 of the inner connecting end A72 near the elastic electrical connecting arm assembly A also has a positioning groove for positioning the first end 61 of the enameled wire 6. The positioning groove of the elastic electrical connecting arm assembly A and the positioning groove of the inner connecting end A72 form a circular groove slightly smaller than the wire diameter of the enameled wire 6. In this way, under the elastic positioning and fixing action of the two elastic electrical connecting arms A73, the enameled wire 6 is firmly fixed in the circular groove (e.g., Figure 4 As shown, the space between the ends of the two flexible electrical connecting arms A73 and the flexible cavity A721 is located in the space between them, while the inner connecting terminal A7 is also stably and reliably electrically connected to the enameled wire 6.

[0027] like Figure 4 , Figure 5As shown, the inner connecting terminal A7 has an outer connecting elastic end A71 on its upper part. The outer connecting elastic end A71 has an outer terminal slot A70 in its middle for elastic electrical contact (used for electrical insertion with the outer terminal A, thus enabling quick and flexible electrical insertion for external connection). The inner connecting terminal A7 has protruding buckles A74 on both sides of its middle portion. The terminal receiving cavity A3 has buckle positioning grooves corresponding to the buckles A74 (the buckle positioning grooves and buckles A74 interact to lock the insertion in place, preventing the inner connecting terminal A7 from exiting the terminal receiving cavity A3). The inner connecting terminal B8 of this invention has the same structure and technical principle as the inner connecting terminal A7, and will not be described further here.

[0028] like Figure 2 As shown, the integrated plug-in device 2 has a wire positioning groove A32 and a wire positioning groove B42 on the side near the winding space 12. The wire positioning groove A32 is connected to the wire guide slot A31 (the wire positioning groove A32 serves to recess and position the enameled wire 6 for assembly, making the storage more aesthetically pleasing after assembly; preferably, a wire hole corresponding to the wire positioning groove A32 can be opened through the side plate 11 of the reel; the wire guide slot A31 is narrower than the wire positioning groove A32 and is used to accurately position the first end 61 of the enameled wire 6). The wire positioning groove B42 is connected to the wire guide slot B41 (the wire positioning groove B42 serves to recess and position the enameled wire 6 for assembly; preferably, a wire hole corresponding to the wire positioning groove B42 can be opened through the side plate 11 of the reel). Figure 1 , Figure 3 As shown, the integrated plug-in device 2 has a connector A311 and a connector B411 fixed on the side away from the winding space 12. The connector A311 is located at the bottom of the wire guide slot A31. The first end 61 of the enameled wire 6 is fixedly connected to the connector A311 (preferably, the first end 61 of the enameled wire 6 is fixed to the connector A311, so that the first end 61 of the enameled wire 6 spans the terminal receiving cavity A3, and one side of the first end 61 of the enameled wire 6 is connected to and locked to the connector A311). The first end 61 is wound in the winding space 12 of the coil winding disc 1 on the other side. Both sides of the first end 61 of the enameled wire 6 are constrained, ensuring that the inner connecting terminal A7 is smoothly inserted and firmly connected. This ensures the precise and taut positioning of the enameled wire 6 at the riveting point. Through the piercing and riveting of the inner connecting terminal A7, mechanical fixation and electrical connection are completed in one go. The connecting seat B411 is located at the bottom of the wire guide slot B41, and the second end 62 of the enameled wire 6 is fixedly connected to the connecting seat B411. The integrated plug-in device 2 is fixed with inverted buckles C5 on both sides. The inverted buckles C5 facilitate the stable and reliable connection of the integrated plug-in device 2 with other components (the inverted buckles C5 serve to prevent the connection from coming out; they have a guide slope and a locking plane, which can achieve a reliable snap-fit ​​connection with the corresponding slot on the inner wall of the magnetic yoke, making assembly convenient and the connection firm).

[0029] In practical use of this invention, the first end 61 and the second end 62 of the enameled wire 6 can correspond to the input end or output end of the enameled wire 6, as shown in the following example: the first end 61 of the enameled wire 6 corresponds to the input end (or starting end) of the enameled wire 6, and the second end 62 of the enameled wire 6 corresponds to the output end (or terminal end) of the enameled wire 6. The first end 61 and the second end 62 of the enameled wire 6 of this invention are sealed and airtightly electrically connected inside the integrated plug-in device 2, achieving a low-resistance, high-reliability electrical connection.

[0030] In use, the integrated plug-in device 2 and the coil winding reel 1 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 inner connection terminal A7 and the inner connection terminal B8 are made of phosphor bronze alloy. The winding space 12 of the coil winding reel 1 is used to wind the enameled wire 6 (0.25mm diameter enameled wire), and the first end 61 and the second end 62 of the enameled wire 6 are left at the position of the integrated plug-in device 2. The first end 61 of the enameled wire 6 is attached to the surface of the integrated plug-in device 2 and passes through the wire guide slot A31 to be fixed to the other side of the integrated plug-in device 2. The inner connection terminal A7 is correspondingly inserted into the terminal receiving cavity A3 and is tightly positioned and electrically connected to the first end 61 of the enameled wire 6. The second end 62 of the enameled wire 6 is passed through the wire guide slot B41 and fixed to the other side of the integrated connector 2. The inner connection terminal B8 is correspondingly inserted into the terminal receiving cavity B4 and tightly positioned and electrically connected to the second end 62 of the enameled wire 6. The outer terminal A is electrically inserted into the outer terminal slot A70 of the inner connection terminal A7, and the outer terminal B is electrically inserted into the outer terminal slot B80 of the inner connection terminal B8. The outer terminals A and B are electrically connected to an external power source. Preferably, the integrated connector 2 integrates two parallel terminal receiving cavities A3 and B4. The outer terminals A and B can be integrated into a single structure, thus enabling the electrical connection of the outer terminals A and B in one operation.

[0031] 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. An integrated coil bobbin device for an electromagnetic brake coil, comprising a coil winding disc with a winding space, characterized in that: It also includes an integrated plug-in device located on the end side of the coil winding disc. The integrated plug-in device has two terminal receiving cavities arranged vertically side by side, and each terminal receiving cavity has a wire passing slot extending horizontally through it. The winding space of the coil winding disc is correspondingly wound with enameled wire. The two ends of the enameled wire are placed in the wire passing slots of the terminal receiving cavity one by one. The terminal receiving cavity is fitted with an internal connection terminal that is electrically connected to the end of the enameled wire.

2. The integrated coil frame device for an electromagnetic brake coil according to claim 1, characterized in that: The two terminal receiving cavities are terminal receiving cavity A and terminal receiving cavity B, respectively. The wire guide slot of terminal receiving cavity A is wire guide slot A, and the wire guide slot of terminal receiving cavity B is wire guide slot B. Terminal receiving cavity A is corresponding to the insertion and installation of internal connection terminal A, and terminal receiving cavity B is corresponding to the insertion and installation of internal connection terminal B. The first end of the enameled wire passes laterally through wire guide slot A and is electrically connected to the internal connection terminal A inserted in terminal receiving cavity A. The second end of the enameled wire passes laterally through wire guide slot B and is electrically connected to the internal connection terminal B inserted in terminal receiving cavity B.

3. The integrated coil frame device for an electromagnetic brake coil according to claim 2, characterized in that: The integrated plug-in device and the coil winding disc are integrally injection molded from a composite material of polybutylene terephthalate and glass fiber. The inner connection terminal A has an outer terminal slot A, in which an outer terminal A is electrically plugged in. The inner connection terminal B has an outer terminal slot B, in which an outer terminal B is electrically plugged in.

4. The integrated coil frame device for an electromagnetic brake coil according to claim 1, 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.

5. An integrated coil frame device for an electromagnetic brake coil according to claim 2, 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.

6. An integrated coil frame device for an electromagnetic brake coil according to claim 5, characterized in that: The inner connection terminal A has an inner connection end A at its lower part and an elastic cavity A in the middle of the inner connection end A. The inner connection end A is elastically connected to the elastic electrical connection arm assembly A, which is placed in the elastic cavity A. The elastic electrical connection arm assembly A consists of two elastic electrical connection arms A arranged symmetrically in a figure-eight pattern. The two elastic electrical connection arms A form a wire wedge-shaped insertion area A. The elastic electrical connection arm assembly A has a stripping blade near the wire wedge-shaped insertion area A for stripping the insulating varnish on the surface of the enameled wire. The inner connection terminal B has the same structure as the inner connection terminal A.

7. An integrated coil frame device for an electromagnetic brake coil according to claim 6, 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.

8. An integrated coil frame device for an electromagnetic brake coil according to claim 3, characterized in that: The inner connection terminal A has an outer connection elastic end A on its upper part. The outer connection elastic end A has an outer terminal slot A with elastic electrical contact in its middle part. The inner connection terminal A has protrusions on both sides of its middle part with buckles A. The terminal receiving cavity A has buckle positioning grooves corresponding to buckles A.

9. An integrated coil frame device for an electromagnetic brake coil according to claim 2, 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.

10. An integrated coil frame device for an electromagnetic brake coil according to claim 2 or 9, 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. The integrated plug-in device has inverted buckles C fixed on both sides.

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