Electromagnetic brake of self-adhesive laminated battery cell
By using high-temperature-resistant glue to bond silicon steel sheets to form an iron core, and combining the T-shaped winding post and coil groove structure, the problems of eddy current loss and magnetic permeability reduction caused by the assembly of the iron core in existing electromagnetic brakes are solved, and the iron loss and excitation current are reduced, which improves the efficiency and performance of the electromagnetic brakes.
Patent Information
- Application Number
- CN202422141444.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-09-02
AI Technical Summary
In existing electromagnetic brakes, the iron core is assembled by welding or riveting, resulting in an increase in eddy current loss, a decrease in magnetic permeability and an increase in energy consumption.
High temperature resistant glue is used to bond multiple groups of silicon steel sheets into an iron core, and T-shaped winding posts are installed ring-shaped on the outside of the iron core, and the coil is wound to form a coil groove to control the coil thickness and heat dissipation.
Through the tightly bonded iron core structure, the iron loss is reduced by 5% and the excitation current is 9%, the vibration during high-speed operation is reduced, and the magnetic permeability and efficiency are improved.
Smart Images
Figure CN222963229U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic brakes, in particular to an electromagnetic brake for a self-adhesive laminated battery cell. Background Technique
[0002] An electromagnetic brake is a brake that uses electromagnetic effects to achieve braking; an electromagnetic brake is an ideal automatic actuator in modern industry, mainly playing roles such as transmitting power and controlling motion in a mechanical transmission system; it has the advantages of a compact structure, simple operation, sensitive response, long service life, reliable use, and easy implementation of remote control, etc.
[0003] The electromagnetic brake includes a battery cell component, and the battery cell component is generally assembled by an iron core and a coil wound around the outside of the iron core; in the related art, the iron core is mostly assembled by multiple groups of silicon steel sheets, and multiple groups of silicon steel sheets are generally assembled by welding or riveting.
[0004] However, for the iron core assembled by welding, due to the existence of the metal material welding layer, a large eddy current loss will be generated when the whole iron core runs after being electrified, thereby reducing the magnetic permeability and increasing the energy consumption; for the iron core assembled by riveting, the whole iron core is not integrated, and there are large space gaps between adjacent silicon steel sheets. In this way, along with the operation of the brake, the set iron core will generate large vibrations and also reduce the magnetic permeability due to the gaps, increasing the energy consumption.
[0005] Aiming at the problems in the above background technique, the utility model aims to provide an electromagnetic brake for a self-adhesive laminated battery cell. Content of the Utility Model
[0006] The purpose of the utility model is to provide an electromagnetic brake for a self-adhesive laminated battery cell to solve the problems put forward in the above background technique.
[0007] To achieve the above purpose, the utility model provides the following technical solution:
[0008] An electromagnetic brake for a self-adhesive laminated battery cell, the electromagnetic brake for a self-adhesive laminated battery cell includes:
[0009] A brake housing and a driving wheel, the driving wheel is rotatably installed on one side of the brake housing, and driving shafts are provided at the axial center positions inside the brake housing and at the axial center position of the driving wheel;
[0010] Among them, an electromagnetic braking component is installed inside the brake housing, and a wire harness is connected to one end of the outside of the brake housing;
[0011] The electromagnetic braking component includes a coil and an iron core formed by bonding multiple groups of silicon steel sheets to each other with a high-temperature resistant glue, and the coil is annularly wrapped around the outside of the iron core.
[0012] As a further solution of the present utility model: T-shaped winding columns are arranged at intervals in a ring shape on the outer side of the iron core, and coils are wound around the outer sides of the winding columns; at the same time, coil grooves are formed between adjacent winding columns around which coils are wound.
[0013] As a further solution of the present utility model: the iron core is formed by bonding multiple groups of silicon steel sheets, and a high-temperature resistant glue layer is formed between adjacent silicon steel sheets.
[0014] Compared with the prior art, the beneficial effects of the present utility model are:
[0015] The electromagnetic brake of the self-adhesive laminated cell has the following advantages compared with the current electromagnetic brake:
[0016] It assembles and forms an iron core by bonding silicon steel sheets with a high-temperature resistant glue layer, so that the manufactured iron core has a tight bond due to the close bonding of the iron core. Coupled with the buffer shock absorption and insulation performance of the high-temperature resistant glue layer, the iron loss of the iron core can be finally reduced by 5%, and the exciting current can be reduced by 9%;
[0017] This enables the entire electromagnetic brake to reduce vibrations during high-speed operation while improving the magnetic permeability, increasing efficiency and performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model.
[0019] Figure 1 It is a schematic structural diagram of an electromagnetic brake of a self-adhesive laminated cell according to an embodiment of the present utility model.
[0020] Figure 2 It is a side view of an electromagnetic brake of a self-adhesive laminated cell according to an embodiment of the present utility model.
[0021] Figure 3 It is a front view of the iron core of an electromagnetic brake of a self-adhesive laminated cell according to an embodiment of the present utility model.
[0022] Figure 4 It is a side view of the iron core of an electromagnetic brake of a self-adhesive laminated cell according to an embodiment of the present utility model.
[0023] Figure 5 It is an assembly schematic diagram of the iron core of an electromagnetic brake of a self-adhesive laminated cell according to an embodiment of the present utility model.
[0024] Figure 6 It is a schematic diagram of the installation of the iron core of the electromagnetic brake in the prior artFigure 1 .
[0025] Figure 7 Schematic diagram of the installation of the iron core of an electromagnetic brake in the prior art Figure 2 .
[0026] In the figure: 1 - wire harness, 2 - brake housing, 3 - drive wheel, 4 - drive shaft, 5 - iron core, 6 - coil, 7 - heat dissipation groove, 8 - silicon steel sheet, 9 - high-temperature resistant glue layer, 10 - welding layer, 11 - rivet. Specific implementation mode
[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0028] Embodiment
[0029] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , an electromagnetic brake for a self-adhesive laminated cell provided in an embodiment of the present utility model, the electromagnetic brake for the self-adhesive laminated cell includes:
[0030] A brake housing 2 and a drive wheel 3, the drive wheel 3 is rotatably installed on one side of the brake housing 2, and drive shafts 4 are provided at the axial center positions inside the brake housing 2 and at the axial center position of the drive wheel 3;
[0031] Among them, an electromagnetic braking assembly is installed inside the brake housing 2, one end of the outside of the brake housing 2 is connected to a wire harness 1, and the connected wire harness 1 is used to supply power to the electromagnetic braking assembly installed inside the brake housing 2, and after being powered on, it is used to make the electromagnetic braking assembly generate a braking effect on the rotating drive wheel 3;
[0032] The electromagnetic braking assembly includes a coil 6 and an iron core 5, and the electromagnetic braking assembly further includes other components, and the other components are prior art and will not be further elaborated herein; the iron core 5 is bonded by a plurality of groups of silicon steel sheets 8 to each other using high-temperature resistant glue; and the coil 6 is wrapped around the outside of the iron core 5 in a ring shape;
[0033] In an embodiment of the present utility model, when using the electromagnetic brake of the self-adhesive laminated cell, since the iron core 5 assembled in the electromagnetic braking assembly after being energized is bonded to each other by multiple groups of silicon steel sheets 8 using high-temperature resistant glue, the fabricated iron core 5 has tight bonding between the iron cores, reducing vibration during high-speed operation, improving magnetic permeability, increasing efficiency and performance, reducing iron loss by 5%, and reducing exciting current by 9%. Therefore, the entire iron core 5 can withstand a high rotational speed of 20,000 rpm without sheet separation, reducing eddy current loss;
[0034] Please refer to Figure 3 , in an embodiment of the present utility model, T-shaped winding posts are annularly and spacedly arranged on the outer side of the iron core 5, and a coil 6 is wound around the outer side of the winding posts; at the same time, a coil slot 7 is formed between adjacent winding posts around which the coil 6 is wound;
[0035] The formed coil slot 7 can not only be used to control the winding thickness of the coil 6 wound around the outer side of the winding post, isolate and protect the coil 6, but also achieve heat dissipation protection when the coil 6 is energized and operating;
[0036] Please refer to Figure 4 and Figure 5 , in an embodiment of the present utility model, the iron core 5 is formed by bonding multiple groups of silicon steel sheets 8, and a high-temperature resistant glue layer 9 is formed between adjacent silicon steel sheets 8;
[0037] By using the high-temperature resistant glue layer 9 to bond the silicon steel sheets 8 to assemble the iron core 5, the fabricated iron core 5 has tight bonding between the iron cores. Coupled with the buffer and shock absorption performance of the high-temperature resistant glue layer 9, finally, the iron loss of the iron core 5 can be reduced by 5%, and the exciting current can be reduced by 9%; while reducing vibration during high-speed operation, the magnetic permeability is improved, and efficiency and performance are increased;
[0038] Please refer to Figure 6 , in the iron core structure one in the prior art, adjacent silicon steel sheets 8 assembled into the iron core 5 are welded together, forming a welding layer 10 between adjacent silicon steel sheets 8;
[0039] Since the iron core 5 is formed by metal welding, the entire iron core 5 is integrated, which causes a large vibration sensation during the operation of the electromagnetic brake. At the same time, the welding layer 10 formed by welding will cause a large eddy current loss in the entire iron core 5, thereby reducing the magnetic permeability and increasing the energy consumption;
[0040] Please refer to Figure 7, for the second iron core structure in the prior art, the silicon steel sheets 8 assembled into the iron core 5 are riveted by rivets 11; this makes the entire iron core 5 not integral, resulting in a large space gap between adjacent silicon steel sheets 8; not only does the entire electromagnetic brake generate significant vibration during operation, but also due to the gap, the magnetic permeability is reduced and the energy consumption is increased;
[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0042] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. An electromagnetic brake of a self-adhesive laminated battery cell, comprising: The brake housing (2) and the driving wheel (3) are characterized in that: The driving wheel (3) is rotatably mounted on one side of the brake housing (2), and a driving shaft (4) is provided at the inner axis position of the brake housing (2) and the axis position of the driving wheel (3); An electromagnetic brake assembly is installed inside the brake housing (2), and one end of the outer side of the brake housing (2) is connected to the wiring harness (1); The electromagnetic brake assembly comprises a coil (6) and an iron core (5) formed by bonding a plurality of groups of silicon steel sheets (8) to each other using high temperature resistant glue, and the coil (6) is wrapped around the outside of the iron core (5) in a ring shape.
2. The electromagnetic brake of the self-adhesive laminated battery cell according to claim 1 is characterized in that: The outer side of the iron core (5) is provided with T-shaped winding poles arranged in an annular manner and spaced apart, and the outer side of the winding poles is wound with a coil (6); and a coil slot (7) is formed between adjacent winding poles wound with the coil (6).
3. The electromagnetic brake of the self-adhesive laminated battery cell according to claim 2 is characterized in that: The iron core (5) is formed by bonding a plurality of groups of silicon steel sheets (8), and a high temperature resistant glue layer (9) is formed between adjacent silicon steel sheets (8).