A high-density magnetic attraction opening device

Abstract

The present invention discloses a glove box device with high-density magnetic attraction and opening, which improves the adsorption force by setting a working air gap between the suction end and the adsorption end, enabling the movable door to stably close the internal space of the glove box; in addition, after passing a certain instantaneous current, the movable door can smoothly open the internal space of the glove box. The device includes: a glove box having an internal space, and the glove box is provided with a movable door for opening and closing the internal space; an electromagnet assembly arranged on both sides of the upper end of the glove box, and a magnet assembly arranged on both sides of the upper end of the movable door; the electromagnet assembly includes an iron core base, the tail end face of the iron core base serves as the adsorption end, and a coil assembly is arranged inside the iron core base; the magnet assembly includes an iron part base, the front end face of the iron part base serves as the suction end, and a receiving groove is arranged on the front end face of the iron part base, and a magnet with magnetism is arranged in the receiving groove, and the magnetic polarity of the magnet is opposite to the polarity generated after the electromagnet assembly is energized.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive parts, and more specifically to a high-density magnetic attraction opening device. Background Art

[0002] With the booming development of new energy vehicles, the application scenarios that require automatic opening and closing are becoming more and more extensive. At present, the opening and locking mechanisms such as glove boxes mainly adopt mechanical locking, solenoid valve locking, and motor control methods, which have complex structures, poor strength, and high failure rates.

[0003] Please refer to a magnetic attraction type glove box disclosed in the publication number CN218907092U. It includes a glove box outer door, a glove box inner door, and a glove box inner bucket fixing frame. The glove box outer door and the glove box inner door are fixedly connected to each other. The glove box outer door and the glove box inner door form an outer door assembly as a whole and are hinged to the glove box inner bucket fixing frame through a rotating shaft. A first permanent magnet block is fixed above the glove box outer door and the glove box inner door. A second permanent magnet block is set near the first permanent magnet block on the inner side above the glove box inner bucket fixing frame. By setting the magnetic pole direction, the second permanent magnet block attracts the first permanent magnet block. An electromagnet is set on one side of the second permanent magnet block of the glove box inner bucket fixing frame. The second permanent magnet block and the electromagnet are fixed at corresponding positions on the upper side of the glove box inner bucket fixing frame and are arranged in an array with the first permanent magnet block to form a locking structure.

[0004] The above structure has some deficiencies: only a fixing component that is magnetically attracted is provided in the middle position of the glove box. The structure of the glove box is generally long. If the volume of the magnetic steel and the electromagnet is relatively small, the attraction force between it and the electromagnet is small, and the connection stability is poor. In the above solution, the volume of the magnetic steel and the electromagnet is set to be relatively large in order to make the position of the glove box door stable when the magnetic steel and the electromagnet are attracted. The structures of the magnetic steel and the electromagnet in the solution need to occupy a large space, while the available space in the vehicle is small. When used in a vehicle, the structural layout needs to occupy the installation area of the glove box, and the glove box needs to be designed smaller, which cannot meet the usage requirements.

[0005] In addition, the large volume of the magnetic steel and the electromagnet will lead to an increase in cost and the glove box door cannot be opened and closed smoothly.

[0006] There are no magnetic fixing parts at both ends of the glove box door. After the glove box door closes the internal space of the glove box, the two ends of the glove box door are prone to shaking. During long-term intensive use, the two ends of the glove box door are prone to bending and deforming outwards, and the service life is relatively low. Summary of the Invention

[0007] In view of the deficiencies and defects of the prior art, a glove box device with high-density magnetic attraction and opening is provided, which can make the movable door firmly close the internal space of the glove box by setting a working air gap between the suction end and the adsorption end; in addition, after passing a certain instantaneous current, the movable door can smoothly open the internal space of the glove box.

[0008] A high-density magnetic attraction and opening device, comprising:

[0009] A glove box having an internal space, and the glove box is provided with a movable door for opening and closing the internal space;

[0010] Electromagnet assemblies arranged on both sides of the upper end of the glove box, and magnet assemblies arranged on both sides of the upper end of the movable door;

[0011] The electromagnet assembly includes an iron core base, the tail end face of the iron core base serves as the adsorption end, and a coil assembly is arranged inside the iron core base;

[0012] The magnet assembly includes an iron part base, the front end face of the iron part base serves as the suction end, and a receiving groove is arranged on the front end face of the iron part base, and a magnet is arranged in the receiving groove.

[0013] Move the movable door so that the suction end of the iron part base is opposite to the adsorption end, and magnetically attract and combine with the bottom end of the iron core base under the magnetic action of the magnet, and a working air gap is formed between the suction end of the base and the adsorption end of the iron core base, and the range of the working air gap is 100μm - 250μm;

[0014] The energization of the coil assembly generates a magnetic field opposite to that of the magnet, which can bounce the iron part base away to open the internal space by the movable door.

[0015] After adopting the above structure, compared with the prior art, the high-density magnetic attraction and opening device of the present invention has the following advantages: electromagnet assemblies are arranged on both sides of the upper end of the glove box, and magnet assemblies are arranged on both sides of the upper end of the movable door;

[0016] A neodymium iron boron magnet is embedded in the receiving groove of the iron part base of the magnet assembly, which can generate a magnetic concentration effect on the iron part base, increase the magnetic suction force of the suction end, and enable the suction end to firmly and reliably attract and combine with the adsorption end, so that the movable door can stably close the internal space of the glove box;

[0017] During suction, by setting a working air gap of 100μm - 250μm between the suction end and the adsorption end of the iron core base, without changing the volume of the magnet, while greatly increasing the suction force, when the coil assembly is energized to generate a magnetic field opposite to that of the magnet, the iron part base can be smoothly bounced away to smoothly open the internal space by the movable door;

[0018] In addition, in this solution, a magnetic steel component and an electromagnet component that can be magnetically attracted are respectively arranged at both ends of the movable door and the glove box in the length direction. With a distributed structural design, the volumes of the magnetic steel component and the electromagnet component can be set to be relatively small, the magnetic attraction connection has high stability, and during long-term high-density use, the movable door will not deform. It has the advantages of small space occupation, the glove box body can be designed to be larger, increasing the storage volume, the movable door will not shake after closing the internal space, and it has the characteristics of simple structure, reliability, low cost, and long service life.

[0019] As an improvement of the present invention, the accommodation groove is located inside the suction end and has a cylindrical blind groove structure. The magnetic steel is in clearance fit with the accommodation groove, and there is a gap formed between the front end face of the magnetic steel and the suction end.

[0020] As an improvement of the present invention, chamfer transition treatment is performed between the front end face of the suction end and the side wall of the accommodation groove.

[0021] As an improvement of the present invention, the tail end of the iron core base is provided with an adsorption surface having a flat wall surface structure, and the adsorption surface serves as the adsorption end.

[0022] As an improvement of the present invention, the iron core base is provided with an annular assembly space from the front end to the tail end, and a core shaft extending from the tail end to the front end is formed inside the assembly space. The coil assembly includes enameled wire, and the enameled wire is arranged in the assembly space and wound around the outside of the core shaft.

[0023] As an improvement of the present invention, a cover plate covering the front opening of the assembly space is provided on the front end face of the iron core base, and a screw connected to the front end of the core shaft is passed through the center position of the cover plate.

[0024] As an improvement of the present invention, a wiring terminal is provided on the outside of the cover plate. The wiring end of the wiring terminal passes through a groove on the cover plate and is electrically connected to the enameled wire, and the wiring terminal is electrically connected to a connector through a wire.

[0025] As an improvement of the present invention, the thickness of the cover plate is 2.2 mm - 4 mm.

[0026] As an improvement of the present invention, the thickness of the base is 2 mm.

[0027] As an improvement of the present invention, an assembly groove is provided at the upper end of the housing of the glove box, and the iron core base is fixed in the assembly groove;

[0028] The iron part base is fixed inside the upper end of the movable door. Description of the Drawings

[0029] Figure 1It is a schematic structural diagram of the present invention.

[0030] Figure 2 It is a schematic partial structural diagram of the present invention.

[0031] Figure 3 It is a schematic cross-sectional structural diagram when the adsorption end of the iron core base of the present invention is engaged with the adsorption end of the iron part base.

[0032] Figure 4 It is a schematic structural diagram of the components of the present invention in an exploded state.

[0033] Figure 5 It is a schematic structural diagram of the connector of the present invention.

[0034] Figure 6 It is a verification schematic diagram of the influence of the working air gap on the suction force of the present invention.

[0035] Figure 7 It is a verification schematic diagram of the influence of the cover plate thickness on the suction force of the present invention.

[0036] Figure 8 It is a verification schematic diagram of the influence of the distance between the cover plate and the iron core base on the suction force of the present invention.

[0037] Figure 9 It is a verification schematic diagram of the influence of the base thickness on the suction force of the present invention.

[0038] As shown in the figure: 1. Iron core base; 1.1. Adsorption end; 1.2. Assembly space; 1.21. Opening; 1.3. Core shaft; 2. Coil assembly; 2.1. Winding cylinder; 2.2. Enameled wire; 3. Iron part base; 3.1. Accommodation groove; 3.2. Engagement end; 4. Magnet; 5. Wiring terminal; 6. Connector; 7. Cover plate; 7.1. Screw; 7.2. Groove; 8. Glove box; 9. Movable door. Detailed implementation manners

[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] Please refer to Figures 1 - 5 As shown, a high-density magnetic adsorption and opening device includes:

[0041] A glove box 8, the glove box 8 has an internal space, and the glove box 8 is provided with a movable door 9 for opening and closing the internal space;

[0042] An electromagnet assembly disposed on both sides of the upper end of the glove box 8, and a magnet 4 assembly disposed on both sides of the upper end of the movable door 9;

[0043] The electromagnet assembly includes an iron core base 1, the tail end face of the iron core base 1 serves as the adsorption end 1.1, and a coil assembly 2 is disposed inside the iron core base 1;

[0044] The magnet steel 4 assembly includes an iron base 3. The front end face of the iron base 3 serves as the attracting end 3.2, and a receiving groove 3.1 is provided on the front end face of the iron base 3. A magnet steel 4 is arranged in the receiving groove 3.1.

[0045] Move the movable door 9 until the attracting end 3.2 of the iron base 3 faces the attracting end 1.1. Under the magnetic action of the magnet steel 4, it is magnetically attracted to the bottom end of the iron core base 1 to close the internal space of the glove box 8. And a working air gap is formed between the attracting end 3.2 of the base and the attracting end 1.1 of the iron core base 1. The range of the working air gap is 100μm - 250μm; as Figure 6 shown, with the magnet steel volume unchanged, after setting a working air gap of 100μm - 250μm, the attracting force is good.

[0046] When the coil assembly 2 is energized to generate a magnetic field opposite to that of the magnet steel 4, the iron base 3 can be bounced off to open the internal space by the movable door 9.

[0047] After adopting the above structure, a high - density magnetic attraction opening device of the present invention has the following advantages compared with the prior art: electromagnet assemblies are arranged on both sides of the upper end of the glove box 8, and magnet steel 4 assemblies are arranged on both sides of the upper end of the movable door 9;

[0048] A neodymium iron boron magnet steel 4 is embedded in the receiving groove 3.1 of the iron base 3 of the magnet steel 4 assembly, which can form a pot - magnet structure on the iron base 3 to generate a magnetic concentration effect, increasing the magnetic attraction of the attracting end 3.2, enabling the attracting end 3.2 to stably and reliably attract to the attracting end 1.1, and further enabling the movable door 9 to stably close the internal space of the glove box 8;

[0049] During attraction, by setting a working air gap of 100μm - 250μm between the attracting end 3.2 and the attracting end 1.1 of the iron core base 1, with the magnet steel 4 volume unchanged, while greatly improving the attracting force, when the coil assembly 2 is energized to generate a magnetic field opposite to that of the magnet steel 4, the iron base 3 can be bounced off smoothly to enable the movable door 9 to smoothly open the internal space;

[0050] In addition, in this solution, magnet steel assemblies and electromagnet assemblies that can be magnetically attracted are respectively arranged at both ends of the movable door 9 and the glove box 8 in the length direction. With a distributed structural design, the volumes of the magnet steel assemblies and the electromagnet assemblies can be set smaller, the stability of the magnetic attraction connection is high, and during long - term high - density use, the movable door 9 will not be deformed. It has the characteristics of small space occupation, the glove box 8 body can be designed larger to increase the storage volume, the movable door 9 will not shake after closing the internal space, and the structure is simple, reliable, low - cost, and has a long service life.

[0051] As an improvement of the present invention, the receiving groove 3.1 is located inside the attracting end 3.2 and is a cylindrical blind groove structure. The magnet 4 is in clearance fit with the receiving groove 3.1, and there is a gap between the front end face of the magnet 4 and the attracting end 3.2. The use of the blind groove structure of the receiving groove 3.1 and the clearance fit setting of the magnet 4 with the receiving groove 3.1 facilitate the assembly of the magnet 4 into the receiving groove 3.1;

[0052] The front end of the magnet 4 is lower than the front end of the iron base 3. When the iron base 3 is attracted to the iron core base 1, there is a gap between the magnet 4 and the iron core base 1, and they will not be in direct contact, which can avoid damage to the magnet 4 and extend its service life.

[0053] As an improvement of the present invention, a chamfer is provided between the front end face of the attracting end 3.2 and the side wall of the receiving groove 3.1 for transition treatment. After the above treatment, the front end opening of the receiving groove 3.1 facilitates the loading of the magnet 4. In addition, the area of the attracting end 3.2 is reduced, and under the magnetic concentration effect, the suction force of the attracting end 3.2 is further increased, further improving the stability when the attracting end 3.2 is attracted to the adsorption end 1.1.

[0054] As an improvement of the present invention, the tail end of the iron core base 1 is provided with an adsorption surface having a flat wall surface structure, and the adsorption surface serves as the adsorption end 1.1. After the above improvement, the attracting end 3.2 can be stably and reliably attracted to the adsorption surface.

[0055] As an improvement of the present invention, an annular assembly space 1.2 is formed from the front end to the tail end of the iron core base 1, and a core shaft 1.3 extending from the tail end to the front end is formed inside the assembly space 1.2. The coil assembly 2 includes a winding cylinder 2.1 and an enameled wire 2.2 wound around the winding cylinder 2.1. The winding cylinder 2.1 is sleeved in the assembly space 1.2 and outside the core shaft 1.3. After the above improvement, the iron core base 1 is designed to be integrally formed with the core shaft 1.3, which has the characteristics of high structural strength and long service life;

[0056] The enameled wire 2.2 is wound around the winding cylinder 2.1. The integral structure setting of the enameled wire 2.2 and the winding cylinder 2.1, and the winding cylinder 2.1 is sleeved on the core shaft 1.3, making the structural layout neat, occupying less space, and having a high degree of compactness.

[0057] As an improvement of the present invention, a cover plate 7 covering the front opening 1.21 of the assembly space 1.2 is provided on the front end face of the iron core base 1, and a screw 7.1 connected to the front end of the core shaft 1.3 is passed through the center position of the cover plate 7. After the above improvement, after the enameled wire 2.2 is wound, the cover plate 7 is fixed to the front part of the assembly space 1.2 by the screw 7.1; the cover plate 7 can shield the opening 1.21 of the assembly space 1.2, so that the coil assembly 2 is in a relatively enclosed space, effectively reducing the entry of external sundries and extending the service life of the device;

[0058] As an improvement of the present invention, a terminal block 5 is provided on the outer side of the cover plate 7. The connection end of the terminal block 5 passes through the groove 7.2 on the cover plate 7 and is electrically connected to the enameled wire 2.2, and the terminal block 5 is electrically connected to a connector 6 through a wire. After the above improvement, the terminal block 5 is provided on the cover plate 7 for connecting the enameled wire 2.2, making the structural layout highly compact, reducing space occupation and facilitating the miniaturization of the device.

[0059] As Figure 7 、 8 shown, the thickness of the cover plate 7 is 2.2 mm - 4 mm. After the above improvement, the thickness of the cover plate 7 has little influence on the suction force. A cover plate 7 with a suitable thickness can be set, and it is tightly fixed to the core shaft 1.3 by the screw 7.1. The smaller the gap between the cover plate 7 and the core shaft 1.3, the greater the suction force.

[0060] As Figure 9 shown, the thickness of the iron core base 1 is 1 mm - 2 mm. The iron core base 1 is set thicker, and the magnetic concentration effect increases the magnetic suction force of the suction end 3.2 better.

[0061] As an improvement of the present invention, an assembly groove is provided at the upper end of the housing of the glove box 8, and the iron core base 1 is fixed in the assembly groove;

[0062] The iron part base 3 is fixed to the inner side of the upper end of the movable door 9. After the above improvement, the structural layout is reasonable. Preferably, the bottom end of the movable door 9 is rotatably connected to the housing of the glove box 8, and the movable door 9 is rotated so that the suction end 3.2 and the adsorption end 1.1 have opposite positions.

[0063] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A high-density magnetic attraction opening device, characterized in that, Comprising: A glove box (8) having an internal space and provided with a movable door (9) for opening and closing the internal space; An electromagnet assembly provided on both sides of the upper end of the glove box (8) and a magnetic steel assembly provided on both sides of the upper end of the movable door (9); The electromagnet assembly includes an iron core base (1), the tail end face of the iron core base (1) serving as an adsorption end (1.1), and a coil assembly (2) is provided inside the iron core base (1); The magnetic steel assembly includes an iron part base (3), the front end face of the iron part base (3) serving as a suction end (3.2), and a receiving groove (3.1) is provided on the front end face of the iron part base (3), and a magnetic steel (4) is provided in the receiving groove (3.1), Moving the movable door (9) until the suction end (3.2) of the iron part base (3) faces the adsorption end (1.1), and magnetically attracting and combining with the bottom end of the iron core base (1) under the magnetic action of the magnetic steel (4), and a working air gap is formed between the suction end (3.2) of the base and the adsorption end (1.1) of the iron core base (1), and the range of the working air gap is 100μm - 250μm; The coil assembly (2) is energized to generate a magnetic field opposite to that of the magnetic steel (4) to repel the iron part base (3) to open the internal space of the movable door (9).

2. The high-density magnetic attraction opening device according to claim 1, wherein: The receiving groove (3.1) is located inside the suction end (3.2) and is a cylindrical blind groove structure, the magnetic steel (4) is in clearance fit with the receiving groove (3.1), and a gap is formed between the front end face of the magnetic steel (4) and the suction end (3.2).

3. A high-density magnetic attraction opening device according to claim 1, characterized in that: The front end face of the suction end (3.2) and the side wall of the receiving groove (3.1) are transitioned by chamfering.

4. A high-density magnetic attraction opening device according to claim 1, characterized in that: The tail end of the iron core base (1) is provided with an adsorption surface having a flat wall surface structure, and the adsorption surface serves as the adsorption end (1.1).

5. The high-density magnetic attraction opening device according to claim 1, wherein: The iron core base (1) is provided with an annular structure assembly space (1.2) from the front end to the tail end, and a core shaft (1.3) extending from the tail end to the front end is formed inside the assembly space (1.2). The coil assembly (2) includes a winding cylinder (2.1) and an enameled wire (2.2) wound around the winding cylinder (2.1). The winding cylinder (2.1) is sleeved in the assembly space (1.2) and outside the core shaft (1.3).

6. The high-density magnetic attraction opening device according to claim 5, characterized in that: The front end face of the iron core base (1) is provided with a cover plate (7) covering the front opening (1.21) of the assembly space (1.2), and a screw (7.1) connected to the front end of the core shaft (1.3) is passed through the center position of the cover plate (7).

7. The high-density magnetic attraction opening device according to claim 6, wherein: A wiring terminal (5) is provided outside the cover plate (7), the wiring end of the wiring terminal (5) passes through a groove (7.2) on the cover plate (7) and is electrically connected to the enameled wire (2.2), and the wiring terminal (5) is electrically connected to a connector (6) through a wire.

8. A high-density magnetic attraction opening device according to claim 7, characterized in that: The thickness of the cover plate (7) is 2.2mm - 4mm.

9. The high-density magnetic attraction opening device according to claim 5, characterized in that: An assembly groove is provided at the upper end of the housing of the glove box (8), and the iron core base (1) is fixed in the assembly groove; The iron part base (3) is fixed inside the upper end of the movable door (9).

Images