Magnetic field connection structure for loudspeaker

Abstract

A magnetic field connection structure used for a loudspeaker comprises a front magnetizer, a magnet element connected to the front magnetizer and a rear magnetizer connected to the magnet element, the rear magnetizer is provided with a fixing groove, the fixing groove is provided with a first limiting groove, the front magnetizer is provided with a second limiting groove, and the first limiting groove is provided with a second limiting groove. The shape of the cross section of the first limiting groove and the shape of the cross section of the second limiting groove are matched with the shape and the size of the cross section of the magnet element, the shape of the cross section of the front magnetizer is matched with the shape and the size of the cross section of the fixing groove, and the magnet element is connected to the first limiting groove and the second limiting groove in a clamped mode.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, and in particular to a magnetic field connection structure for loudspeakers. Background Technology

[0002] A loudspeaker is a transducer that converts electrical signals into sound signals. The main function of the magnetic field in a loudspeaker is to provide driving force, causing the coil to vibrate and drive the cone to produce sound. In existing technology, the magnetic field of a loudspeaker mainly includes the following components: a front magnet, a rear magnet, and a magnet element. The existing connection method of the magnetic field is as follows: the rear magnet has a fixing groove. First, glue is applied to the surface of the fixing groove, then the magnet element is fixed to the rear magnet. Then, a layer of glue is applied to the exposed surface of the magnet element, and then the front magnet is fixed to the magnet element. Finally, the front magnet, magnet element, and rear magnet are fixed together with fixing bolts. This has the following problems: First, because the fixing bolts have threads, the gap between the magnet element and the inner wall of the fixing groove is uneven, which makes the magnetic field prone to heat generation when it is working. Second, affected by external vibration factors, the front magnet, rear magnet, and magnet element may be relatively displaced, thus affecting the magnetic field performance. Therefore, a new magnetic field connection structure is needed. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a magnetic field connection structure for a loudspeaker that ensures uniform magnetic field gaps, prevents magnetic field overheating, and avoids relative displacement of the magnetic field.

[0004] The technical solution of this utility model is as follows: A magnetic field connection structure for a loudspeaker includes a front magnet, a magnet element connected to the front magnet, and a rear magnet connected to the magnet element. The rear magnet has a fixing groove, and the fixing groove has a first limiting groove. The front magnet has a second limiting groove. The cross-sectional shapes of the first limiting groove and the second limiting groove are respectively adapted to the cross-sectional shape and size of the magnet element. The cross-sectional shape of the front magnet is adapted to the cross-sectional shape and size of the fixing groove. The magnet element is respectively engaged in the first limiting groove and the second limiting groove.

[0005] Using the above technical solution, when assembling the magnetic field of a loudspeaker, the magnet component is first placed in the fixing groove. At the same time, the magnet component is aligned with the position of the first limiting groove and inserted into the first limiting groove. Then, the front magnet is placed above the magnet component. The second limiting groove is aligned with the position of the magnet component and inserted into the second limiting groove. This fixes the relative positions of the magnet component, the front magnet, and the rear magnet, thereby ensuring the overall stability of the magnetic field structure. In addition, compared with the traditional magnetic field structure, no fixing bolts are required, which can ensure the stability of the gap size of the magnetic field and avoid the phenomenon of easy heat generation when the magnetic field is working.

[0006] A further feature of this invention is as follows: the magnet element has a fixing hole that penetrates the magnet element and is coaxial with the magnet element. A rubber rod is provided on the fixing hole and engages with it. The first limiting groove has a positioning hole. The cross-sectional shape of the rubber rod is adapted to the cross-sectional shape and size of the fixing hole and the positioning hole, respectively. When the magnet element is placed in the first limiting groove, the positioning hole corresponds to the fixing hole. When the magnet element is installed in the first limiting groove, the positioning hole and the fixing hole are coaxial.

[0007] By adopting the above technical solution, since the magnet element is provided with a fixing hole, which is coaxially set with the magnet element, and when the magnet element is fixed in the first fixing groove, the positioning hole corresponds to the fixing hole. Therefore, after the installation of the magnet element is completed, the rubber rod is inserted into the fixing hole and the positioning hole respectively, which can further ensure the stability of the magnetic field structure. At the same time, since no fixing bolts are needed and there are no threads on the surface of the rubber rod, the stability of the magnetic field gap can be ensured, thereby further avoiding the phenomenon of magnetic field overheating and affecting the use effect of the speaker.

[0008] A further feature of this invention is that an adhesive layer is provided at both the top and bottom of the magnet element, and the adhesive layer is evenly applied to the top and bottom of the magnet element.

[0009] By adopting the above technical solution, since the top and bottom of the magnet element are provided with adhesive layers and the adhesive layers are evenly applied to the top and bottom of the magnet element, it can further ensure that the leading magnet and the rear leading magnet are stably connected to the magnet element, thereby further improving the stability of the magnetic field structure. Attached Figure Description

[0010] Appendix Figure 1 This is a cross-sectional view of a magnetic field connection structure for a loudspeaker according to a specific embodiment of the present invention.

[0011] 1-Front magnet, 2-Magnetic element, 3-Rear magnet, 4-Fixing groove, 5-First limiting groove, 6-Second limiting groove, 7-Fixing hole, 8-Rubber rod, 9-Positioning hole, 10-Glue layer. Detailed Implementation

[0012] like Figure 1 As shown, a magnetic field connection structure for a loudspeaker includes a front magnet 1, a magnet element 2 connected to the front magnet 1, and a rear magnet 3 connected to the magnet element 2. The rear magnet 3 is provided with a fixing groove 4, and the fixing groove 4 is provided with a first limiting groove 5. The front magnet 1 is provided with a second limiting groove 6. The cross-sectional shapes of the first limiting groove 5 and the second limiting groove 6 are respectively adapted to the cross-sectional shape and size of the magnet element 2. The cross-sectional shape of the front magnet 1 is adapted to the cross-sectional shape and size of the fixing groove 4. The magnet element 2 is respectively engaged in the first limiting groove 5 and the second limiting groove 6.

[0013] When assembling the magnetic field of a speaker, first place the magnet element 2 into the fixing groove 4. At the same time, align the magnet element 2 with the position of the first limiting groove 5 and snap the magnet element 2 into the first limiting groove 5. Then place the front magnet 1 above the magnet element 2. Then align the position of the second limiting groove 6 with the position of the magnet element 2 and snap the magnet element 2 into the second limiting groove 6. This fixes the relative positions of the magnet element 2, the front magnet 1, and the rear magnet 3, thereby ensuring the overall stability of the magnetic field structure. At the same time, compared with the traditional magnetic field structure, there is no need to install fixing bolts, which can ensure the stability of the gap size of the magnetic field and avoid the phenomenon of easy heat generation when the magnetic field is working.

[0014] The magnet element 2 is provided with a fixing hole 7, which penetrates the magnet element 2 and is coaxially arranged with the magnet element 2. A rubber rod 8 is provided on the fixing hole 7 and is engaged with the fixing hole 7. A positioning hole 9 is provided on the first limiting groove 5. The cross-sectional shape of the rubber rod 8 is adapted to the cross-sectional shape and size of the fixing hole 7 and the positioning hole 9, respectively. When the magnet element 2 is placed in the first limiting groove 5, the positioning hole 9 corresponds to the position of the fixing hole 7. When the magnet element 2 is installed in the first limiting groove 5, the positioning hole 9 is coaxially arranged with the fixing hole 7.

[0015] Since the magnet element 2 is provided with a fixing hole 7, which is coaxially arranged with the magnet element 2, and when the magnet element 2 is fixed in the first fixing groove 4, the positioning hole 9 corresponds to the fixing hole 7. Therefore, after the installation of the magnet element 2 is completed, the rubber rod 8 is inserted into the fixing hole 7 and the positioning hole 9 respectively, which can further ensure the stability of the magnetic field structure. At the same time, since no fixing bolts are needed and there are no threads on the surface of the rubber rod 8, the stability of the magnetic field gap can be ensured, thereby further avoiding the phenomenon of magnetic field overheating and affecting the use effect of the speaker.

[0016] The top and bottom of the magnet element 2 are provided with adhesive layers 10, which are evenly applied to the top and bottom of the magnet element 2.

[0017] Since the top and bottom of the magnet element 2 are provided with adhesive layers 10, and the adhesive layers 10 are evenly applied to the top and bottom of the magnet element 2, the front magnet 1 and the rear magnet 3 can be stably connected to the magnet element 2, thereby further improving the stability of the magnetic field structure.

Claims

1. A magnetic field connection structure for a loudspeaker, characterized by: The magnet element is respectively clamped in the first limiting recess and the second limiting recess.

2. A magnetic field connection structure for a speaker according to claim 1, characterized in that: The magnet element is respectively clamped in the first limiting recess and the second limiting recess.

3. A magnetic field connection structure for a speaker according to claim 1, characterized in that: The top and bottom of the magnet element are provided with glue layers, and the glue layers are evenly applied to the top and bottom of the magnet element.

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