Magnetic leakage prevention box cover

Abstract

The utility model relates to the technical field of moving iron units, in particular to a magnetic leakage prevention box cover which comprises a first lower cover, a first storage bottom cavity is formed in the first lower cover, and a first wire outlet groove is formed in the left side of the first lower cover. According to the magnetic leakage prevention box cover, through the upper cover and the lower cover which are large in upper portion and small in lower portion, the upper cover can cover the lower cover conveniently, the magnetic leakage prevention function of the box cover is achieved, meanwhile, the connecting cavities in the protruding blocks are filled with the connecting cavities in a welding or gluing mode, the protruding block cavities are connected with the lower cover, combination of the upper cover and the lower cover is completed, and therefore the problem of magnetic leakage is completely eradicated; through the flaring sealing square frame and the step supporting square frame of the second lower cover and the second upper cover, the second upper cover and the second lower cover can be more effectively prevented from magnetic leakage after being sleeved up and down, the new upper cover and the new lower cover do not adopt a butt joint mode, and the upper cover and the lower cover are partially crossed to achieve magnetic shielding. And the position of the bottom clamping block is staggered on the two sides to shield the magnetism.

Description

Technical Field

[0001] The utility model relates to the technical field of moving iron units, in particular to a magnetic leakage prevention box cover. Background Art

[0002] Dynamic armature earphones are earphones that transmit sound to the center of a micro-diaphragm through a precisely structured connecting rod, thereby generating vibrations and producing sound. Dynamic armature earphones can be easily placed in the ear canal because the unit is much smaller.

[0003] The existing moving iron box cover usually adopts the method of upper and lower docking, so the part where the two sections are connected is prone to magnetic leakage. In addition, the lead-out part of the existing moving iron box cover usually uses a slot-shaped opening or a circular hole, which is also prone to magnetic leakage. These magnetic leakage defects are more likely to cause howling problems in the hearing aid unit of the client's hearing aid. Utility Model Content

[0004] The purpose of the present utility model is to provide a magnetic leakage prevention box cover, so as to solve the problem that the lead-out portion of the moving iron box cover proposed in the above-mentioned background technology usually uses a slot-shaped opening or a circular hole, which is also prone to magnetic leakage. In order to achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a magnetic leakage prevention box cover, comprising a lower cover one, the interior of the lower cover one is provided with a storage bottom cavity one, the left side of the lower cover one is provided with a wire outlet groove one, the outer wall of the lower cover one is fixedly connected to a bottom block, the top of the lower cover one is movably connected to an upper cover one, the middle part of the bottom block is threadedly connected to a positioning bolt, one side of the positioning bolt extends to the interior of the lower cover one, and the side of the positioning bolt extending to the interior of the lower cover one is fixedly connected to a positioning anti-slip pad, and both sides of the upper cover one are provided with an installation cavity one, and the installation cavity one A magnetic leakage sensing part is fixedly connected to one side, installation cavities 2 are opened on both sides of the inner wall of the upper cover one, a battery box is fixedly connected to one side of the installation cavity 2, a wire is fixedly connected to the top of the battery box, the top of the wire is fixedly connected to the magnetic leakage sensing part, the wire is adapted to the magnetic leakage sensing part, a warning light is fixedly connected to the top of the upper cover one, a built-in battery is fixedly connected to the interior of the upper cover one, and the built-in battery is electrically connected to the warning light, and the upper cover and the lower cover with a larger upper part and a smaller lower part can be used to make the upper cover cover the lower cover, thereby realizing the anti-magnetic leakage function of the box cover, and at the same time utilizing the connecting cavity inside the protrusion.

[0005] Further preferably, a storage top cavity is opened inside the upper cover one, and a wire outlet groove two is opened on the left side of the upper cover one.

[0006] Further preferably, a protrusion is fixedly connected to the right side of the upper cover one, a connecting cavity is opened in the middle of the protrusion, and a lower cover two is arranged on the outer side of the lower cover one. The connecting cavity is filled with welding or gluing to connect the protrusion cavity to the lower cover, thereby completing the merging of the upper and lower covers, thereby completely eliminating the problem of magnetic leakage.

[0007] Further preferably, a storage bottom cavity 2 is opened inside the lower cover 2, and a wire outlet groove 3 is opened on the left side of the lower cover 2. Through the expanded sealing frame and the step support frame of the lower cover 2 and the upper cover 2, the upper cover 2 and the lower cover 2 can more effectively prevent magnetic leakage after being sleeved up and down.

[0008] Further preferably, the inner wall of the lower cover 2 is fixedly connected with a step support frame, and the outer wall of the lower cover 2 is fixedly connected with a flared sealing frame. The new upper and lower covers do not adopt a docking method, but adopt a partial crossing of the upper and lower covers to achieve magnetic shielding.

[0009] Further preferably, the top of the lower cover 2 is movably connected to the upper cover 2, and a wire outlet slot 4 is provided on the right side of the upper cover 2, so that the magnetic shielding is achieved by staggering the position of the bottom block on both sides.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] In the utility model, the upper cover and the lower cover are formed so that the upper cover covers the lower cover and the magnetic leakage prevention function of the box cover is realized. At the same time, the connecting cavity inside the protrusion is filled with welding or gluing to connect the protrusion cavity with the lower cover, thereby completing the merging of the upper and lower covers and completely eliminating the problem of magnetic leakage.

[0012] In the utility model, through the expanded sealing frame and the step support frame of the lower cover 2 and the upper cover 2, it is convenient to make the upper cover 2 and the lower cover 2 more effectively prevent magnetic leakage after being sleeved up and down. The new upper and lower covers do not adopt the docking method, but adopt the upper and lower covers to partially cross to achieve magnetic shielding, and the bottom block position is staggered on both sides to achieve magnetic shielding. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 2 For this utility model Figure 1 Schematic diagram of explosion structure;

[0015] Figure 3 This is a schematic diagram of the enlarged structure of the local details of the protrusion of the utility model;

[0016] Figure 4 This is a schematic diagram of a three-dimensional structure of the upper cover of the utility model;

[0017] Figure 5 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0018] Figure 6 For this utility model Figure 5 Schematic diagram of the explosion structure.

[0019] In the figure: 1. Lower cover one; 2. Storage bottom cavity one; 3. Wire outlet slot one; 4. Bottom clamp; 5. Upper cover one; 6. Storage top cavity; 7. Wire outlet slot two; 8. Bump; 9. Connecting cavity; 10. Lower cover two; 11. Storage bottom cavity two; 12. Wire outlet slot three; 13. Step support frame; 14. Expanding sealing frame; 15. Upper cover two; 16. Wire outlet slot four; 17. Positioning bolts; 18. Positioning anti-skid pad; 19. Installation cavity one; 20. Magnetic leakage induction unit; 21. Installation cavity two; 22. Battery box; 23. Wires; 24. Warning light; 25. Built-in battery. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 4 The utility model provides a technical solution: an anti-magnetic leakage box cover, including a lower cover 1, a storage bottom cavity 2 is opened inside the lower cover 1, a wire outlet slot 3 is opened on the left side of the lower cover 1, a bottom clamping block 4 is fixedly connected to the outer wall of the lower cover 1, an upper cover 5 is movably connected to the top of the lower cover 1, a positioning bolt 17 is threadedly connected to the middle of the bottom clamping block 4, one side of the positioning bolt 17 extends to the inside of the lower cover 1, and a positioning anti-slip pad 18 is fixedly connected to one side of the positioning bolt 17 extending to the inside of the lower cover 1, an installation cavity 19 is opened on both sides of the upper cover 5, and a magnetic leakage induction part 20 is fixedly connected to one side of the installation cavity 19, an installation cavity 21 is opened on both sides of the inner wall of the upper cover 5, a battery box 22 is fixedly connected to one side of the installation cavity 21, and the top of the battery box 22 is fixedly A wire 23 is fixedly connected, the top of the wire 23 is fixedly connected to the magnetic leakage sensing part 20, the wire 23 is adapted to the magnetic leakage sensing part 20, the top of the upper cover 5 is fixedly connected to a warning light 24, the interior of the upper cover 5 is fixedly connected to a built-in battery 25, the built-in battery 25 is electrically connected to the warning light 24, when it is necessary to merge and connect the lower cover 1 and the upper cover 5, after the object to be protected from magnetic leakage is placed inside the storage bottom cavity 2 and the storage top cavity 6, the larger storage top cavity 6 wraps and covers the smaller storage bottom cavity 2, that is, the upper cover 5 covers the lower cover 1, and then the wire of the object to be protected from magnetic leakage is led out through the outlet groove 3 and the bottom block 4 and the outlet groove 27, and then glue is poured into the connecting cavity 9, so that the right surface of the lower cover 1 is connected to the inner wall of the protrusion 8, and the merging of the upper cover 5 and the lower cover 1 is completed.

[0022] In this embodiment, Figure 5 and Figure 6 As shown, a lower cover 2 10 is arranged on the outer side of the lower cover 1, a storage bottom cavity 2 11 is opened inside the lower cover 2 10, a wire outlet slot 3 12 is opened on the left side of the lower cover 2 10, a step support frame 13 is fixedly connected to the inner wall of the lower cover 2 10, a flared sealing frame 14 is fixedly connected to the outer wall of the lower cover 2 10, an upper cover 2 15 is movably connected to the top of the lower cover 2 10, and a wire outlet slot 4 16 is opened on the right side of the upper cover 2 15, the object to be prevented from magnetic leakage can be placed in the storage bottom cavity 2 11, and the upper cover 2 15 is embedded in the step support frame 13 inside the lower cover 2 10, so that the inner wall of the flared sealing frame 14 contacts and wraps the outer wall of the upper cover 2 15, thereby completing the positioning of the upper cover 2 15, and then the wires can be discharged through the wire outlet slot 3 12 of the lower cover 2 10 and the wire outlet slot 4 16 of the upper cover 2 15.

[0023] The use method and advantages of the utility model: When the anti-magnetic leakage box cover is used, the working process is as follows:

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, when it is necessary to merge and connect the lower cover 1 and the upper cover 5, after the object to be protected from magnetic leakage is placed inside the storage bottom cavity 2 and the storage top cavity 6, the larger storage top cavity 6 covers the smaller storage bottom cavity 2, that is, the upper cover 5 covers the lower cover 1, and then the wires of the object to be protected from magnetic leakage are led out through the outlet groove 13 and the bottom clamping block 4 and the outlet groove 27, and then the adhesive is poured into the connecting cavity 9, so that the right surface of the lower cover 1 is connected to the inner wall of the protrusion 8, and the merger of the upper cover 5 and the lower cover 1 is completed. The object to be protected from magnetic leakage can also be placed in the storage bottom cavity 2 11, and the upper cover 2 15 is embedded in the storage bottom cavity 2. The step support frame 13 is inserted into the interior of the lower cover 10, so that the inner wall of the expanded sealing frame 14 contacts and wraps the outer wall of the upper cover 15, and the upper cover 15 is positioned. Then the wires are discharged through the outlet groove 3 12 of the lower cover 10 and the outlet groove 4 16 of the upper cover 15. After placing the objects on the lower cover 1, the positioning bolt 17 can be rotated to move the positioning bolt 17 to a position close to the interior of the lower cover 1 through the bottom clamping block threadedly connected thereto, and the other side of the positioning bolt 17 drives the positioning anti-slip pad 18 to move toward the interior of the lower cover 1 to position the objects inside it.

[0025] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A magnetic leakage prevention box cover, comprising a lower cover (1), characterized in that: The lower cover (1) is provided with a storage bottom cavity (2) inside, the left side of the lower cover (1) is provided with a wire outlet groove (3), the outer wall of the lower cover (1) is fixedly connected with a bottom clamping block (4), the top of the lower cover (1) is movably connected with an upper cover (5), the middle part of the bottom clamping block (4) is threadedly connected with a positioning bolt (17), one side of the positioning bolt (17) extends into the interior of the lower cover (1), and one side of the positioning bolt (17) extending into the interior of the lower cover (1) is fixedly connected with a positioning anti-slip pad (18), and the upper cover (5) is provided with installation cavities (19) on both sides, and the installation cavities (19) are provided with a plurality of holes. 19), a magnetic leakage sensing part (20) is fixedly connected to one side of the upper cover (5), installation cavities (21) are provided on both sides of the inner wall of the upper cover (5), a battery box (22) is fixedly connected to one side of the installation cavity (21), a wire (23) is fixedly connected to the top of the battery box (22), the top of the wire (23) is fixedly connected to the magnetic leakage sensing part (20), the wire (23) is matched with the magnetic leakage sensing part (20), a warning light (24) is fixedly connected to the top of the upper cover (5), a built-in battery (25) is fixedly connected to the interior of the upper cover (5), and the built-in battery (25) is electrically connected to the warning light (24).

2. The anti-magnetic leakage box cover according to claim 1, characterized in that: A storage top cavity (6) is provided inside the upper cover (5), and a wire outlet groove (2) is provided on the left side of the upper cover (5).

3. The anti-magnetic leakage box cover according to claim 2, characterized in that: A convex block (8) is fixedly connected to the right side of the upper cover (5), a connecting cavity (9) is provided in the middle of the convex block (8), and a lower cover (10) is provided on the outer side of the lower cover (1).

4. The anti-magnetic leakage box cover according to claim 3, characterized in that: A second storage bottom cavity (11) is provided inside the second lower cover (10), and a third wire outlet groove (12) is provided on the left side of the second lower cover (10).

5. The anti-magnetic leakage box cover according to claim 4, characterized in that: The inner wall of the second lower cover (10) is fixedly connected with a step support frame (13), and the outer wall of the second lower cover (10) is fixedly connected with a flaring sealing frame (14).

6. The anti-magnetic leakage box cover according to claim 5, characterized in that: The top of the second lower cover (10) is movably connected to the second upper cover (15), and the right side of the second upper cover (15) is provided with a fourth wire outlet groove (16).

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