Release coil structure
By setting a spring and a pin on the outside of the tripper coil to connect the core and the baffle, the problem of insufficient reset force of the traditional tripper coil is solved, and a more reliable core reset and tripping function is achieved.
Patent Information
- Application Number
- CN202422272238.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-18
AI Technical Summary
The reset spring force value of the traditional tripper coil is relatively small, resulting in abnormal reset of the magnetic core and insufficient attachment of the magnetic core and the fixed seat, affecting the normal operation of the tripper.
In the tripper coil structure, the spring is placed outside the coil, and the magnetic core and the baffle are connected through the pin. The magnetic core does not pass through the fixed seat to push the contacts, increase the reset force and reduce suction loss, and use the magnetization effect to drive the baffle action to achieve tripping.
It improves the reset force while reducing suction loss, ensuring normal reset of the magnetic core and reliable operation of the trip unit.
Smart Images
Figure CN223167431U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power equipment, and in particular to a tripping coil structure. Background Art
[0002] For a traditional tripping coil, an enameled wire wound around a skeleton is energized. Through the principle of electromagnetic induction, the magnetic core in the middle is magnetized, and then the contact is pushed to act. When powered off, the magnetic core returns to its original position through an internal return spring. Affected by the internal space of the coil, the force value of the return spring is small, which easily causes the magnetic core to fail to reset normally, resulting in the failure of the tripping device. At the same time, since the magnetic core needs to pass through the fixing seat on the coil to push the contact, when the coil is energized, the stud on the magnetic core is easily attracted to the fixing seat, resulting in insufficient suction force. Summary of the Utility Model
[0003] Other features and advantages of the present utility model will be described in the following specification, and will be partially obvious from the specification, or understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures specifically pointed out in the specification and other accompanying drawings of the specification.
[0004] The purpose of the present utility model is to overcome the above deficiencies and provide a tripping coil structure to solve the existing problems.
[0005] To achieve the above objective, the technical solution of the present utility model is: a tripping coil structure, including a skeleton, the skeleton includes a support plate, a support rod is provided between the support plates, a coil is provided on the support rod, a fixing seat is provided inside one end of the support rod, a magnetic core is provided at the other end, one end of the fixing seat protrudes outside the support rod, one end of the magnetic core is inserted into the support rod, and the other end is located outside. A through hole is provided at the end of the magnetic core located outside, a plug pin is provided in the through hole, a baffle is provided on the plug pin, a spring is provided at the end of the magnetic core located outside, and the spring is sleeved on the magnetic core through the plug pin. The coil is connected with a connecting wire.
[0006] In some embodiments, a copper tube is provided on the inner wall of the support rod.
[0007] In some embodiments, a groove is provided on the surface of the fixing seat opposite to the magnetic core, and one end of the magnetic core matches the groove.
[0008] In some embodiments, a side cover is provided on the outer wall of the skeleton.
[0009] In some embodiments, an upper shell is provided at one end of the skeleton where the magnetic core is located.
[0010] In some embodiments, a wire passing groove is provided inside one end of the skeleton, and the connecting wire is led out through the wire passing groove.
[0011] In some embodiments, mounting brackets are provided on both sides of the side cover. A sliding hole is provided on one side of the mounting bracket, and the sliding hole is connected to the bolt.
[0012] By adopting the above technical solutions, the beneficial effects of the present utility model are as follows: By arranging the spring outside the coil, the present utility model can provide a greater restoring force. At the same time, the magnetic core does not need to pass through the fixing seat to push the contact to act, greatly reducing the loss of suction force. Then, the magnetic core and the baffle are connected by a bolt. When the coil is energized, the magnetic core will be magnetized and move inward, driving the baffle to act together. The baffle can be installed on the switching mechanism to realize the tripping of the mechanism.
[0013] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure.
[0014] Undoubtedly, such objectives of the present utility model and other objectives will become more apparent after the details of the preferred embodiments described below with multiple drawings and illustrations.
[0015] To make the above and other objectives, features, and advantages of the present utility model more obvious and understandable, one or several preferred embodiments are hereinafter specifically exemplified and described in detail in conjunction with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model.
[0017] In the drawings, the same components are denoted by the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only one or several embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on such drawings without creative efforts.
[0019] Figure 1 It is a schematic structural diagram of the tripping coil structure of some embodiments of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] In order to make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model, but not to limit the present utility model.
[0021] In addition, in the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.
[0022] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. However, indicating a direct connection means that there is no connection relationship constructed through a transition structure between the two connected main bodies, and they are only connected through the connection structure to form a whole. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0023] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0024] The following describes the specific implementation manners of the present utility model with reference to the drawings.
[0025] Refer to Figure 1 , Figure 1 which is a schematic structural diagram of the tripping coil structure of some embodiments of the present utility model.
[0026] The utility model provides a tripping coil structure, which includes a bobbin 1. The bobbin 1 includes a support plate 11. A support rod 12 is arranged between the support plates 11. A coil 13 is arranged on the support rod 12. A fixing seat 18 is arranged inside one end of the support rod 12, and a magnetic core 2 is arranged at the other end. One end of the fixing seat 18 protrudes outside the support rod 12. One end of the magnetic core 2 is inserted into the support rod 12, and the other end is located outside. A through hole 21 is arranged at the end of the magnetic core 2 located outside. A plug pin 22 is arranged in the through hole 21. A baffle 23 is arranged on the plug pin 22. A spring 24 is arranged at the end of the magnetic core 2 located outside. The spring 24 is sleeved on the magnetic core 2 through the plug pin 22. The coil 13 is connected with a connecting wire 15.
[0027] By arranging the spring 24 outside the coil 13, a greater reset force can be provided. At the same time, the magnetic core 2 does not need to pass through the fixing seat 18 to push the contact to act, greatly reducing the loss of suction. Then, the plug pin 22 is used to connect the magnetic core 2 and the baffle 23. When the coil 13 is energized, the magnetic core 2 will be magnetized and move inward, driving the baffle 23 to act together. There is a hole in the baffle 23 that can be installed on the switching mechanism to realize the tripping of the mechanism.
[0028] According to some embodiments of the present utility model, optionally, a copper tube 14 is arranged on the inner wall of the support rod 12. The bobbin 1 is made of nylon material and will deform during the winding process. When the coil 13 is normally energized, it will generate heat, and the nylon material is also prone to deformation. Adding the copper tube 14 between the bobbin 1 and the magnetic core 2 can ensure that the magnetic core 2 will not be squeezed during deformation, resulting in the magnetic core 2 being unable to act.
[0029] According to some embodiments of the present utility model, optionally, a groove 16 is arranged on the surface of the fixing seat 18 opposite to the magnetic core 2, and one end of the magnetic core 2 is matched with the groove 16. Setting the groove 16 can increase the suction force by matching the fixing seat 18 and the magnetic core 2 at different angles.
[0030] According to some embodiments of the present utility model, optionally, a side cover 3 is arranged on the outer wall of the bobbin 1. To protect the bobbin 1.
[0031] According to some embodiments of the present utility model, optionally, an upper shell 4 is arranged at one end of the bobbin 1 where the magnetic core 2 is located. Also for protecting the bobbin 1.
[0032] According to some embodiments of the present utility model, optionally, a wire groove 17 is arranged inside one end of the bobbin 1, and the connecting wire 15 is led out through the wire groove 17. The connecting wire 15 is led out through the wire groove 17 inside the bobbin 1, which can maximally ensure that the connecting wire 15 does not cause the coil 13 to break due to external force pulling.
[0033] According to some embodiments of the present utility model, optionally, mounting brackets 31 are provided on both sides of the side cover 3. A sliding hole 32 is provided on one side of the mounting bracket 31, and the sliding hole 32 is connected to the latch pin 22. For the convenience of installation, a sliding hole 32 is provided on the other side to ensure sliding during tripping.
[0034] It should be understood that the embodiments disclosed in the present utility model are not limited to the specific processing steps or materials disclosed herein, but should extend to equivalent alternatives of such features understood by those of ordinary skill in the relevant art. It should also be understood that the terms used herein are for the purpose of describing specific embodiments only and do not imply limitation.
[0035] The "embodiments" mentioned in the specification mean that the specific features or characteristics described in connection with the embodiments are included in at least one embodiment of the present utility model. Therefore, the phrase "embodiments" that appears throughout the specification does not necessarily refer to the same embodiment.
[0036] In addition, the described features or characteristics can be combined in any other suitable manner into one or more embodiments. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the present utility model. However, those skilled in the relevant art will understand that the present utility model can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.
Claims
1. A trip coil structure, characterized in that, Comprising: A skeleton, which includes a support plate, with support rods provided between the support plates, coils provided on the support rods, a fixing seat provided inside one end of the support rod, a magnetic core provided at the other end, one end of the fixing seat protruding outside the support rod, one end of the magnetic core inserted into the support rod, the other end located outside, a through hole provided at the end of the magnetic core located outside, a pin provided in the through hole, a baffle provided on the pin, a spring provided at the end of the magnetic core located outside, the spring sleeved on the magnetic core through the pin, and the coil connected with a connecting wire.
2. The trip coil structure according to claim 1, wherein: A copper tube is provided on the inner wall of the support rod.
3. The trip coil structure according to claim 1, characterized in that: A groove is provided on the opposite side of the fixing seat and the magnetic core, and one end of the magnetic core matches the groove.
4. The trip coil structure according to claim 1, characterized in that: A side cover is provided on the outer wall of the skeleton.
5. The trip coil structure according to claim 1, characterized in that: An upper shell is provided at one end of the skeleton where the magnetic core is located.
6. The trip coil structure according to claim 1, characterized in that: A wire groove is provided inside one end of the skeleton, and the connecting wire is led out through the wire groove.
7. The trip coil structure according to claim 4, wherein: Mounting brackets are provided on both sides of the side cover, and a sliding hole is provided on one side of the mounting brackets, and the sliding hole is connected with the pin.