Nanocrystal magnetic ring assembly structure convenient to produce

Abstract

The utility model discloses a nanocrystalline magnetic ring assembly structure convenient to produce, which comprises a protective shell, a containing groove is arranged on the protective shell, a nanocrystalline magnetic ring body is embedded in the containing groove, and an injection molding structural part is arranged on the outer side of the protective shell. The protection shell is used for protecting the nanocrystalline magnetic ring body in the forming process of the injection molding structural part. According to the utility model, through the arrangement of the protective shell, the problem that the nanocrystalline magnetic ring body is easy to damage in the injection molding process is solved, and the integrity and functionality of the nanocrystalline magnetic ring body are ensured. And secondly, the protection shell is combined with the injection molding structural part, so that the whole production process is more coherent and efficient, the magnetic ring does not need to be manually put in and the glue does not need to be cured, the production efficiency is remarkably improved, and the manufacturing cost is reduced. In addition, by means of the technology, the structural design and use of the product are more flexible and diverse, and the requirements of different application occasions are met.

Description

Technical Field

[0001] The utility model relates to the technical field of nanocrystalline magnetic rings, and more specifically to a nanocrystalline magnetic ring component structure which is easy to produce. Background Art

[0002] As a high-performance magnetic material, nanocrystalline magnetic rings have been widely used in motor controllers, charging piles / EVs, new energy and photovoltaic inverters in recent years. Their unique physical and chemical properties, such as high magnetic permeability, low hysteresis, and high saturation magnetic induction intensity, make nanocrystalline magnetic rings play a vital role in these systems. However, despite the many advantages of nanocrystalline magnetic rings, some technical defects and deficiencies have been exposed in actual applications.

[0003] The structure of the nanocrystalline magnetic ring is relatively fragile. Due to the size effect and surface effect of nanocrystals, the nanocrystalline magnetic ring is prone to structural damage when subjected to external force or temperature changes, thus affecting its magnetic properties and service life. Especially during the in-mold injection molding process, due to the influence of injection pressure and temperature, the structure of the nanocrystalline magnetic ring is easily destroyed, resulting in damage to its function and inability to be used normally. The conventional practice is to manually insert the magnetic ring after injection molding, and then automatically fill the glue. This method is not only inefficient, but also requires waiting for the glue to fully solidify before proceeding to the next step. Room temperature curing usually takes about 24 hours, which greatly limits the production efficiency of the product and increases the manufacturing cost of the product. At the same time, since it is necessary to wait for the glue to solidify, this also limits the structure and design of the product, which limits the diversity and innovation of the product to a certain extent.

[0004] The above shortcomings need to be improved. Summary of the invention

[0005] In order to solve or alleviate the problem that the structure of the existing nanocrystalline magnetic ring is easily damaged during the production process, the utility model provides a nanocrystalline magnetic ring component structure that is easy to produce.

[0006] The technical solution of the utility model is as follows:

[0007] A nanocrystalline magnetic ring component structure that is easy to produce includes a protective shell, a receiving groove is provided on the protective shell, a nanocrystalline magnetic ring body is embedded in the receiving groove, an injection molding structure is provided on the outside of the protective shell, and the protective shell is used to protect the nanocrystalline magnetic ring body during the molding process of the injection molding structure.

[0008] Preferably, the protective shell is made of aluminum alloy.

[0009] Preferably, in the vertical projection, the nanocrystalline magnetic ring body and the receiving groove are both runway-shaped, the wall surface of the inner ring of the nanocrystalline magnetic ring body fits with the wall surface of the inner ring of the receiving groove, the wall surface of the outer ring of the nanocrystalline magnetic ring body fits with the wall surface of the outer ring of the receiving groove, and the bottom surface of the nanocrystalline magnetic ring body fits with the bottom surface of the receiving groove.

[0010] Preferably, a reinforcing rib is provided in the through hole in the middle of the protective shell, and two ends of the reinforcing rib are respectively connected to two opposite parallel surfaces, and the reinforcing rib divides the through hole in the middle of the protective shell into a plurality of accommodating holes.

[0011] Furthermore, multiple layers of the nanocrystalline magnetic ring body are arranged in the accommodating groove, and a protective pad is arranged on each layer of the nanocrystalline magnetic ring body.

[0012] Preferably, the injection-molded structural component includes a first injection-molded component wrapped outside the protective shell, and a second injection-molded component is wrapped outside the first injection-molded component.

[0013] Furthermore, a first positioning portion is disposed on the surface of the first injection molded part, and a second positioning portion is disposed on the surface of the second injection molded part, and the first positioning portion is engaged with the second positioning portion.

[0014] Furthermore, a first positioning hole is provided on the second injection molded part, a copper bar is penetrated through the first positioning hole, and the copper bar passes through the through hole in the middle of the nanocrystalline magnetic ring.

[0015] Furthermore, a second positioning hole is provided on the second injection molded part, a wiring piece is provided in the second positioning hole, the wiring piece is connected to one end of the copper busbar, and a threaded hole is provided at the center of the wiring piece.

[0016] Furthermore, a third positioning hole is arranged at the edge of the second injection molded part, and a sheath is arranged in the third positioning hole.

[0017] The utility model according to the above scheme has the beneficial effect that, by providing a protective shell, the utility model solves the problem that the nanocrystalline magnetic ring body is easily damaged during the injection molding process, thereby ensuring the integrity and functionality of the nanocrystalline magnetic ring body. Secondly, the combination of the protective shell and the injection molding structure makes the entire production process more coherent and efficient, without the need to manually insert the magnetic ring and wait for the glue to solidify, which significantly improves production efficiency and reduces manufacturing costs. In addition, this technology also makes the structural design and use of the product more flexible and diverse, meeting the needs of different application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the front three-dimensional structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the back three-dimensional structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the bottom three-dimensional structure of the utility model;

[0022] Figure 4 This is an exploded view of the front structure of the utility model;

[0023] Figure 5 It is an exploded view of the bottom structure of the utility model.

[0024] Among them, the figure marks in the figure are: 1, protective shell; 101, accommodating groove; 102, reinforcing rib; 2, nanocrystalline magnetic ring body; 3, injection molded structural part; 301, first injection molded part; 302, second injection molded part; 3021, first positioning hole; 3022, second positioning hole; 3023, third positioning hole; 4, protective pad; 5, copper busbar; 6, wiring member; 7, sheath. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] It should be noted that when a component is referred to as being "fixed" or "set" or "connected" to another component, it may be located directly or indirectly on the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and should not be construed as limitations on the present technical solution. The terms "first", "second", etc. are only used for the convenience of description and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0027] like Figure 1-Figure 5 As shown, a nanocrystalline magnetic ring component structure that is easy to produce is described in one embodiment of the utility model, including a protective shell 1, a receiving groove 101 is provided on the protective shell 1, a nanocrystalline magnetic ring body 2 is embedded in the receiving groove 101, and an injection molding structure 3 is provided on the outer side of the protective shell 1. The protective shell 1 is used to protect the nanocrystalline magnetic ring body 2 during the molding process of the injection molding structure 3.

[0028] During the production process, first prepare a protective shell 1 with a receiving groove 101, and the size of the receiving groove 101 on the protective shell 1 matches the nanocrystalline magnetic ring body 2. Next, place the nanocrystalline magnetic ring body 2 into the receiving groove 101 of the protective shell 1. At this time, the nanocrystalline magnetic ring body 2 is embedded in the protective shell 1 to protect the integrity and stability of the nanocrystalline magnetic ring body 2. After that, put the protective shell 1 embedded with the nanocrystalline magnetic ring into the mold and perform injection molding together with the injection molding structure 3. During the injection molding process, the protective shell 1 protects the nanocrystalline magnetic ring body 2 to prevent the nanocrystalline magnetic ring body 2 from being damaged by excessive injection pressure and excessive temperature. The entire production process has a short waiting time, and continuous automated production can be achieved.

[0029] In this embodiment, by providing a protective shell 1, the problem of the nanocrystalline magnetic ring body 2 being easily damaged during the injection molding process is solved, and the integrity and functionality of the nanocrystalline magnetic ring body 2 are ensured. Secondly, the combination of the protective shell 1 and the injection molding structure 3 makes the entire production process more coherent and efficient, without the need to manually insert the magnetic ring and wait for the glue to solidify, which significantly improves production efficiency and reduces manufacturing costs. In addition, this technology also makes the structural design and use of the product more flexible and diverse, meeting the needs of different application scenarios.

[0030] In a preferred embodiment, the protective shell 1 is made of aluminum alloy.

[0031] During production, the aluminum alloy material is first cut and stamped into a protective shell 1 with a receiving groove 101. Then, the nanocrystalline magnetic ring body 2 is embedded in the receiving groove 101 of the protective shell 1. Next, an injection molding operation is performed on the outside of the protective shell 1, and the injection molding material is injected into the mold under high temperature and high pressure, and is tightly combined with the protective shell 1 to form an injection molded structural part 3.

[0032] Aluminum alloy is used as the material of the protective shell 1 to provide more solid protection for the nanocrystalline magnetic ring. The high mechanical strength and corrosion resistance of aluminum alloy enable the protective shell 1 to withstand greater external forces and more severe environmental conditions, effectively preventing the nanocrystalline magnetic ring from being damaged during production and use.

[0033] like Figure 4As shown, in a preferred embodiment, in the vertical projection, the nanocrystalline magnetic ring body 2 and the receiving groove 101 are both runway-shaped, the wall surface of the inner ring of the nanocrystalline magnetic ring body 2 fits with the wall surface of the inner ring of the receiving groove 101, the wall surface of the outer ring of the nanocrystalline magnetic ring body 2 fits with the wall surface of the outer ring of the receiving groove 101, and the bottom surface of the nanocrystalline magnetic ring body 2 fits with the bottom surface of the receiving groove 101.

[0034] During the assembly process, the nanocrystalline magnetic ring body 2 is placed in the receiving groove 101 to ensure that the inner ring, outer ring wall and bottom surface are closely attached to the receiving groove 101, thereby improving the structural stability of the product and effectively preventing the nanocrystalline magnetic ring from being damaged during the injection molding process. At the same time, the runway-shaped nanocrystalline magnetic ring body 2 can optimize the magnetic field distribution and improve the magnetic properties of the product.

[0035] like Figure 4 As shown, in a preferred embodiment, a reinforcing rib 102 is provided in the through hole in the middle of the protective shell 1, and the two ends of the reinforcing rib 102 are respectively connected to two opposite parallel surfaces, and the reinforcing rib 102 divides the through hole in the middle of the protective shell 1 into a plurality of accommodating holes.

[0036] In the process of producing the protective case 1, the position, quantity and size of the reinforcing ribs 102 are first determined according to the product design requirements. Then, notches are opened at corresponding positions of the aluminum alloy material to form the reinforcing ribs 102 and the receiving grooves 101. The entire production process requires precise control of parameters such as injection molding temperature, pressure and speed to ensure the strength and stability of the reinforcing ribs 102.

[0037] In this embodiment, by providing a reinforcing rib 102 in the middle through hole of the protective shell 1 and dividing the through hole into a plurality of accommodating holes, the reinforcing rib 102 enhances the overall strength and rigidity of the protective shell 1, improves the stability and reliability of the protective shell 1, and thus improves the durability and impact resistance of the nanocrystalline magnetic ring body 2. At the same time, the plurality of accommodating holes enables the protective shell 1 to accommodate a plurality of copper bars 5, thereby improving the space utilization and functionality of the product.

[0038] like Figure 4 and Figure 5 As shown, in a preferred embodiment, a multi-layer nanocrystalline magnetic ring body 2 is disposed in the receiving groove 101 , and a protective pad 4 is disposed on each layer of the nanocrystalline magnetic ring body 2 .

[0039] During the production process, firstly, the number of nanocrystalline magnetic ring bodies 2 is determined according to the design requirements, and then the sizes of the nanocrystalline magnetic ring bodies 2 and the protective pads 4 are determined, thereby determining the size of the receiving groove 101. Then, the nanocrystalline magnetic ring bodies 2 and the protective pads 4 are sequentially placed into the receiving groove 101, that is, the protective pads 4 are arranged between each layer of the nanocrystalline magnetic ring bodies 2. The material of the protective pads 4 needs to be a soft material that can protect the magnetic ring from wear and impact, such as felt.

[0040] A multi-layer nanocrystalline magnetic ring body 2 is arranged in the receiving groove 101, so that the volume of the nanocrystalline magnetic ring body 2 is small and the structural strength is higher. In addition, the layout of the multi-layer magnetic ring improves the space utilization rate, makes the magnetic field of the magnetic ring more concentrated and stable, thereby enhancing the magnetic properties of the product. Secondly, a protective pad 4 is arranged on each layer of the nanocrystalline magnetic ring body 2, which effectively reduces the wear and impact of the nanocrystalline magnetic ring body 2, plays a buffering role, reduces the vibration and displacement of the magnetic ring when it is subjected to external force, prevents the nanocrystalline magnetic ring body 2 from being damaged during the injection molding process, and further improves the stability and reliability of the product.

[0041] like Figure 4 As shown, in a preferred embodiment, the injection molded structural member 3 includes a first injection molded part 301 wrapped outside the protective shell 1, and the outer side of the first injection molded part 301 is wrapped with a second injection molded part 302. The first injection molded part 301 can further protect the nanocrystalline magnetic ring body 2, and the second injection molded part 302 can be added with other structural members during the injection molding process, which can adapt to the processing of different products.

[0042] During the production process, the protective shell 1 embedded with the nanocrystalline magnetic ring body 2 is first placed in the first injection mold, and then the first injection molding material is injected to form a first injection molded part 301 wrapped outside the protective shell 1, so that the nanocrystalline magnetic ring body 2 is further protected during the injection molding process and the stability of the overall structure is enhanced. After the first injection molded part 301 is completely solidified, the assembly consisting of it and the protective shell 1 is placed in the second injection mold, and the second layer of injection molding material is injected to form a second injection molded part 302 wrapped outside the first injection molded part 301. Other structural parts such as copper bars 5 and copper sleeves can be added during the second injection molding process to meet the processing requirements of different products. The entire production process requires precise control of the temperature, pressure and flow rate of the injection molding material to ensure the tight combination of the two layers of injection molding parts with the protective shell 1 and the nanocrystalline magnetic ring body 2, and control the inductance attenuation of the nanocrystalline magnetic ring body 2 to be less than 15%. Specifically, the inductance of the nanocrystalline magnetic ring body 2 before injection molding is Al≥18μH (10kHz&1V), Al≥7μH (100kHz&1V), and the inductance of the nanocrystalline magnetic ring body 2 after injection molding is Al≥15μH (10kHz&1V), Al≥5μH (100kHz&1V).

[0043] In this embodiment, the first injection molded part 301 provides further protection for the nanocrystalline magnetic ring body 2, improves the structural strength of the nanocrystalline magnetic ring body 2, and enhances the durability and reliability of the product. Secondly, the second injection molded part 302 flexibly adds other structural parts during the injection molding process, so that the product can adapt to more diverse application scenarios and processing requirements, which not only improves the market competitiveness of the product, but also reduces the difficulty of processing.

[0044] like Figure 4 and Figure 5As shown, in a preferred embodiment, a first positioning portion is disposed on the surface of the first injection molded part 301 , and a second positioning portion is disposed on the surface of the second injection molded part 302 , and the first positioning portion is engaged with the second positioning portion.

[0045] Specifically, the first positioning part includes a first positioning column disposed on the top of the first injection molded part 301, a second positioning column disposed at the front and rear, positioning grooves disposed at the left and right, and a third positioning column disposed at the bottom, that is, each surface of the first injection molded part 301 is provided with a positioning structure. Correspondingly, the second positioning part on the second injection molded part 302 is engaged with the first positioning part one by one.

[0046] During the production process, the injection mold of the first injection molded part 301 is first provided with a structure for manufacturing the first positioning part. When the first injection molded part 301 is injection molded, the first positioning part will be formed on its surface. Then, during the injection molding process, the second injection molded part 302 can be wrapped around the outside of the first positioning part, thereby forming a second positioning part at a position corresponding to the first positioning part.

[0047] In this embodiment, by respectively providing the first positioning portion and the second positioning portion on the surfaces of the first injection-molded part 301 and the second injection-molded part 302, the first positioning portion and the second positioning portion engage with each other during the second injection molding, thereby achieving precise matching and stable connection between the two injection-molded parts, improving the overall structural stability of the product, and enhancing the durability and reliability of the product.

[0048] like Figure 4 and Figure 5 As shown, in a preferred embodiment, a first positioning hole 3021 is provided on the second injection molded part 302 , a copper bar 5 is penetrated through the first positioning hole 3021 , and the copper bar 5 passes through the through hole in the middle of the nanocrystalline magnetic ring body 1 .

[0049] During the production process, the prefabricated copper bar 5 and the first injection molded part 301 are placed at the designated positions on the injection mold, ensuring that the copper bar 5 passes through the through hole on the nanocrystalline magnetic ring body 2, that is, the copper bar 5 passes through the receiving hole. When the second injection molded part 302 is completed, the second injection molded part 302 forms a first positioning hole 3021 at the copper bar 5. After the injection molding is completed, after cooling and curing treatment, the second injection molded part 302 and the copper bar 5 are firmly combined to form a complete component.

[0050] In this embodiment, by providing the copper busbar 5, the product is provided with an electrical connection function, so that the structure can be effectively electrically connected to other electronic devices or systems. Secondly, the precise matching of the first positioning hole 3021 and the copper busbar 5 ensures the stability and reliability of the electrical connection, reducing functional failures caused by looseness. In addition, the copper busbar 5 passes through the through hole of the nanocrystalline magnetic ring, making the interaction between the magnetic field and the current more direct and efficient, thereby improving the magnetic and electrical properties of the product.

[0051] like Figure 5 As shown, a second positioning hole 3022 is provided on the second injection molded part 302 , a wiring member 6 is provided in the second positioning hole 3022 , the wiring member 6 is connected to one end of the copper bus 5 , and a threaded hole is provided at the center of the wiring member 6 .

[0052] In the process of manufacturing the second injection molded part 302, the position and size of the second positioning hole 3022 are calculated according to the actual size of the wiring member 6 and the copper bus 5, and a corresponding protrusion is made in the injection mold, and then the wiring member 6 is placed in the preset position. Then, during the injection molding process, the injection molding parameters are strictly controlled to ensure the molding accuracy of the second positioning hole 3022. After the second injection molded part 302 is injection-molded, the wiring member 6 is wrapped by the second positioning hole 3022, and the wiring member 6 is electrically connected to one end of the copper bus 5. The central threaded hole of the wiring member 6 is used for subsequent connection with other devices or systems.

[0053] In this embodiment, by setting the second positioning hole 3022 on the second injection molded part 302 and installing the wiring member 6, the direct connection between the wiring member 6 and the copper bus 5 ensures the stability and efficiency of current transmission, reduces energy loss and reduces the risk of electrical failure. At the same time, the threaded hole in the center of the wiring member 6 provides a flexible connection method, so that the product can be easily connected and expanded with various external devices or systems, improves the electrical connection performance of the product, enhances the versatility and adaptability of the product, and provides a more convenient and flexible use experience for the staff.

[0054] like Figure 4 and Figure 5 As shown, in a preferred embodiment, a third positioning hole 3023 is provided at the edge of the second injection molded part 302 , and a sheath 7 is provided in the third positioning hole 3023 .

[0055] In the process of manufacturing the second injection molded part 302, the position of the third positioning hole 3023 is first determined, and then the sheath 7, i.e., the copper sleeve, is placed at the preset position. Subsequently, the liquid plastic is injected into the mold, and after cooling and solidification, the second injection molded part 302 is taken out. At this time, the sheath 7 is buried in the third positioning hole 3023, which plays a role in protecting the positioning hole and preventing wear.

[0056] In this embodiment, the installation of the sheath 7 effectively protects the positioning hole, prevents wear and damage caused by long-term use or external factors, thereby extending the service life of the injection molded part. In addition, the material of the sheath 7 also fully considers wear resistance and stability, further enhancing practicality and reliability.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A nanocrystalline magnetic ring assembly structure that is easy to produce, characterized in that: It comprises a protective shell, the protective shell is provided with a receiving groove, a nanocrystalline magnetic ring body is embedded in the receiving groove, an injection molding structure is provided on the outer side of the protective shell, and the protective shell is used to protect the nanocrystalline magnetic ring body during the molding process of the injection molding structure.

2. A nanocrystalline magnetic ring assembly structure that is easy to produce according to claim 1, characterized in that: The protective shell is made of aluminum alloy.

3. A nanocrystalline magnetic ring assembly structure that is easy to produce according to claim 1, characterized in that: In the vertical projection, the nanocrystalline magnetic ring body and the receiving groove are both runway-shaped, the wall surface of the inner ring of the nanocrystalline magnetic ring body fits with the wall surface of the inner ring of the receiving groove, the wall surface of the outer ring of the nanocrystalline magnetic ring body fits with the wall surface of the outer ring of the receiving groove, and the bottom surface of the nanocrystalline magnetic ring body fits with the bottom surface of the receiving groove.

4. A nanocrystalline magnetic ring assembly structure that is easy to produce according to claim 1, characterized in that: A reinforcing rib is arranged in the through hole in the middle of the protective shell, and two ends of the reinforcing rib are respectively connected to two opposite parallel surfaces, and the reinforcing rib divides the through hole in the middle of the protective shell into a plurality of accommodating holes.

5. A nanocrystalline magnetic ring component structure that is easy to produce according to any one of claims 1 to 4, characterized in that: Multiple layers of the nanocrystalline magnetic ring body are arranged in the accommodating groove, and a protective pad is arranged on each layer of the nanocrystalline magnetic ring body.

6. A nanocrystalline magnetic ring assembly structure that is easy to produce according to claim 1, characterized in that: The injection-molded structural component includes a first injection-molded component wrapped outside the protective shell, and a second injection-molded component is wrapped outside the first injection-molded component.

7. A nanocrystalline magnetic ring assembly structure that is easy to produce according to claim 6, characterized in that: A first positioning portion is disposed on the surface of the first injection molded part, and a second positioning portion is disposed on the surface of the second injection molded part. The first positioning portion is engaged with the second positioning portion.

8. A nanocrystalline magnetic ring assembly structure that is easy to produce according to claim 7, characterized in that: The second injection molded part is provided with a first positioning hole, a copper bar is penetrated through the first positioning hole, and the copper bar passes through the through hole in the middle of the nanocrystalline magnetic ring.

9. A nanocrystalline magnetic ring assembly structure that is easy to produce according to claim 8, characterized in that: The second injection molded part is provided with a second positioning hole, a wiring piece is provided in the second positioning hole, the wiring piece is connected to one end of the copper busbar, and a threaded hole is provided at the center of the wiring piece.

10. A nanocrystalline magnetic ring assembly structure that is easy to produce according to claim 9, characterized in that: A third positioning hole is arranged at the edge of the second injection molded part, and a sheath is arranged in the third positioning hole.

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