Miniature fluxgate sensor

Abstract

The utility model discloses a miniature fluxgate sensor, which comprises a shell, a drawer type mounting rack, a circuit board and a rotary lock catch, the shell is a hollow cuboid shell with one end open and the other end closed, the drawer type mounting rack comprises a mounting rack body, the circuit board is mounted at the top of the mounting rack body, and the rotary lock catch is mounted on the circuit board. A cover plate used for opening or closing the open end of the shell is arranged at one end of the mounting frame body, a fixing plate is arranged at the other end of the mounting frame body, a mounting hole is formed in the fixing plate, a first clamping block is arranged on the inner wall of the mounting hole, and the rotary lock catch comprises a rotary shaft rotationally mounted at the closed end of the shell. The second clamping block is clamped on the first clamping block or separated from the first clamping block, so that the mounting frame body can be conveniently fixed in the shell or loosened from the shell, the circuit board can be conveniently fixed in the shell or detached from the shell, the circuit board can be conveniently overhauled, and the overhauling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of magnetic flux gate sensor, especially to a micro magnetic flux gate sensor. BACKGROUND

[0002] The magnetic flux gate sensor is a kind of sensor that utilizes the nonlinear relationship between the magnetic induction intensity and the magnetic field intensity of high-permeability core in measured magnetic field under the saturation excitation of alternating magnetic field to measure weak magnetic field, and the existing magnetic flux gate includes shell and circuit board installed in the shell by bolt, and the shell is provided with cover plate by bolt, when the circuit board needs to be overhauled, the cover plate is first disassembled from the shell by screwdriver, and then the circuit board is disassembled from the shell by screwdriver, so that the operation is very cumbersome, and thus the overhauling efficiency of the circuit board is affected. SUMMARY

[0003] The utility model aims at overcoming the above technical insufficiency, and provides a micro magnetic flux gate sensor, which solves the technical problem that the circuit board on the magnetic flux gate sensor in the prior art needs to be first disassembled from the shell by screwdriver, and then disassembled from the shell by screwdriver, so that the operation is very cumbersome, and thus the overhauling efficiency of the circuit board is affected.

[0004] To achieve the above technical purpose, the technical scheme of the utility model provides a micro magnetic flux gate sensor, which comprises a shell, a drawer type mounting frame, a circuit board and a rotary lock catch, the shell is a hollow long rectangular parallelepiped with one end open and the other end closed, the drawer type mounting frame comprises a mounting frame body, the circuit board is installed on the top of the mounting frame body, the mounting frame body is provided with a cover plate at one end for opening or closing the open end of the shell, the other end of the mounting frame body is provided with a fixed plate, the fixed plate is provided with a mounting hole, the first clamping block is arranged on the inner wall of the mounting hole, the rotary lock catch comprises a rotating shaft rotatably installed on the closed end of the shell, the rotating shaft is provided with a fixed block at one end inside the shell, the fixed block is provided with a second clamping block matched with the first clamping block on the side wall, and the other end of the rotating shaft is provided with a knob block outside the shell.

[0005] Further, the knob block is provided with a limiting hole, and the closed end of the shell is provided with a limiting block arranged inside the limiting hole.

[0006] Further, the first clamping block is provided with a chamfer at one end.

[0007] Further, the inner wall of the shell is provided with a slot on both sides along the length direction, and the mounting frame body can be inserted into the slots on both sides of the inner wall of the shell.

[0008] Further, the mounting frame body is provided with a threaded sleeve at four corners on the top.

[0009] Further, the mounting frame body is a long rectangular parallelepiped frame structure.

[0010] The micro magnetic flux gate sensor has the advantages that: the micro magnetic flux gate sensor is provided, the fixed plate can be rotated by rotating the knob block, the second clamping block is clamped on the first clamping block or separated from the first clamping block, the mounting rack body can be conveniently fixed in or loosened from the shell, the circuit board can be conveniently fixed in or disassembled from the shell, the circuit board can be conveniently maintained, and the maintenance efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a micro magnetic flux gate sensor structure schematic diagram of the utility model embodiment;

[0012] Figure 2 is Figure 1 the A place enlarged view of;

[0013] Figure 3 is the micro magnetic flux gate sensor split diagram of the utility model embodiment;

[0014] Figure 4 is the drawer type mounting rack and rotary lock catch connection diagram of the utility model embodiment;

[0015] Figure 5 is Figure 4 the B place enlarged view of;

[0016] Figure 6 is the rotary lock catch structure schematic diagram of the utility model embodiment;

[0017] In the figure: 1, shell;11, limiting block;12, slot;2, drawer type mounting rack;21, mounting rack body;211, threaded sleeve;22, cover plate;23, fixed plate;231, mounting hole;232, first clamping block;2321, chamfer;3, circuit board;4, rotary lock catch;41, rotating shaft;42, fixed block;421, second clamping block;43, knob block;431, limiting hole. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following is combined with the drawings and examples, and the utility model is further described in detail.It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0019] The utility model embodiment provides a kind of micro magnetic flux gate sensor, as Figures 1-6As shown, including the shell 1, drawer mounting frame 2, circuit board 3 and rotating lock 4, the shell 1 is hollow inside, and one end is open, the other end is closed rectangular shell, drawer mounting frame 2 includes mounting frame body 21, mounting frame body 21 top mounted circuit board 3, mounting frame body 21 one end is provided with a cover plate 22 for opening or closing the open end of the shell 1, mounting frame body 21 the other end is provided with a fixed plate 23, fixed plate 23 is provided with mounting hole 231, mounting hole 231 is a circular structure, the inner wall of mounting hole 231 is provided with a first clamping block 232, the first clamping block 232 is a circular arc structure, rotating lock 4 includes a rotating shaft 411 rotatably mounted in the closed end of the shell 1, the rotating shaft 411 one end is arranged in the shell 1 inside and mounted with a fixed block 42, the side wall of the fixed block 42 is provided with a second clamping block 421 matched with the first clamping block 232, the second clamping block 421 is a circular arc structure, the other end of the rotating shaft 41 is arranged outside the shell 1 and mounted with a knob block 43.

[0020] When installing, mounting frame body 21 is inserted into the shell 1 inside, when mounting frame body 21 is completely inserted into the shell 1 inside, cover plate 22 can close the open end of the shell 1, at the same time, fixed block 42 is arranged in the mounting hole 231 of the fixed plate 23, rotating knob block 43, knob block 43 can drive fixed block 42 to rotate through rotating shaft 411, so that the second clamping block 421 is clamped on the first clamping block 232, thereby the drawer mounting frame 2 can be installed in the shell 1 inside, that is, the installation of the micro magnetic flux gate sensor of the utility model is completed, when disassembling, reverse rotating knob block 43, knob block 43 can drive fixed block 42 to rotate through rotating shaft 411, so that the second clamping block 421 is separated from the first clamping block 232, thereby the drawer mounting frame 2 can be loosened from the shell 1 inside, when the drawer mounting frame 2 is loosened from the shell 1 inside, the drawer mounting frame 2 is pulled out from the shell 1 inside, that is, the circuit board can be repaired, convenient operation.

[0021] In the embodiment, the first clamping block 232 one end is provided with a chamfer 2321, which can make the second clamping block 421 of the side wall of the fixed block 42 more easily clamped on the first clamping block 232 when rotating the knob block 43.

[0022] In the embodiment, the knob block 43 is provided with a limiting hole 431, the limiting hole 431 is a circular arc structure, the closed end of the shell 1 is provided with a limiting block 11, the limiting block 11 is arranged in the limiting hole 431, when the knob block 43 is rotated to the limiting block 11 is located at one end of the limiting hole 431, the knob block 43 can be blocked by the limiting block 11, at the same time, the second clamping block 421 is clamped on the first clamping block 232, when the knob block 43 is rotated to the limiting block 11 is located at the other end of the limiting hole 431, the knob block 43 can be blocked by the limiting block 11, at the same time, the second clamping block 421 is separated from the first clamping block 232, therefore, the user can operate conveniently.

[0023] In the embodiment, the two sides of the inner wall of the shell 1 are provided with the insertion grooves 12 along the length direction, and one end of the insertion grooves 12 at the opening end of the shell 1 is an open structure; during installation, the two sides of the mounting frame body 21 are respectively inserted into the insertion grooves 12 at the two sides of the inner wall of the shell 1, and the mounting frame body 21 is inserted into the shell 1 along the insertion grooves 12; when the mounting frame body 21 is inserted into the shell 1, the fixing block 22 is arranged in the mounting hole 231 of the fixing block 23, so that the mounting frame body 21 can be conveniently installed in the shell 1, and the installation position of the mounting frame body 21 can be fixed, so that the mounting frame body 21 is more stably fixed in the shell 1.

[0024] In order to conveniently install the circuit board 3 on the mounting frame body 21, in the embodiment, the four corners of the top of the mounting frame body 21 are provided with the threaded sleeves 211, the threaded sleeves 211 are provided with threaded holes in the interiors, the threaded sleeves 211 at the four corners of the top of the mounting frame body 21 can be matched with the mounting holes at the four corners of the circuit board 3, and the circuit board 3 is installed on the mounting frame body 21 through bolts; meanwhile, the mounting frame body 21 is a cuboid frame structure, more specifically, the mounting frame body 21 is composed of four plate bodies connected at the head and tail, and the bottom of the circuit board 3 can be exposed, so that the circuit board 3 can be further conveniently maintained.

[0025] The miniature magnetic flux gate sensor of the embodiment of the utility model, through rotating the knob block 43 can drive the fixed plate 23 to rotate, the second clamping block 421 is clamped on the first clamping block 232 or separated from the first clamping block 232, so that the mounting frame body 21 can be conveniently fixed in the shell 1 or loosened from the shell 1, so that the circuit board 3 can be conveniently fixed in the shell 1 or disassembled from the shell 1, and the circuit board 3 can be conveniently maintained, and the maintenance efficiency is improved.

[0026] The specific implementation manner of the utility model described above does not constitute a limitation on the protection scope of the utility model. Any various other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A miniature fluxgate sensor, characterized by The utility model provides a drawer type installation frame, it includes shell (1), drawer type installation frame (2), circuit board (3) and rotary lock catch (4), the shell (1) is hollow inside, and one end is open, and the other end is closed cuboid shell, the drawer type installation frame (2) includes installation frame body (21), the installation frame body (21) top is equipped with circuit board (3), the installation frame body (21) one end is equipped with the cover plate (22) for the open or closed of shell (1) open end, the installation frame body (21) other end is equipped with fixed plate (23), the fixed plate (23) is equipped with mounting hole (231) on, the first clamping block (232) is equipped in mounting hole (231) inner wall, the rotary lock catch (4) includes the pivot shaft (41) of rotation installation in the closed end of shell (1), the pivot shaft (41) one end is arranged in the inside of shell (1) and is equipped with fixed block (42), the fixed block (42) side wall is equipped with the second clamping block (421) with first clamping block (232) cooperation, the pivot shaft (41) other end is arranged in the outside of shell (1) and is equipped with knob block (43).

2. The miniature fluxgate sensor of claim 1, wherein, The knob block (43) is equipped with limiting hole (431), and the closed end of the shell (1) is equipped with limiting block (11), and the limiting block (11) is arranged in the inside of the limiting hole (431).

3. The miniature fluxgate sensor of claim 1, wherein, The first clamping block (232) one end is equipped with chamfer (2321).

4. The miniature fluxgate sensor of claim 1, wherein, The both sides of the inner wall of the shell (1) are equipped with the slot (12) along its length direction, and the both sides of the installation frame body (21) can be inserted into the both sides of the slot (12) of the inner wall of the shell (1) respectively.

5. The miniature fluxgate sensor of claim 1, wherein, The installation frame body (21) top four corners are equipped with threaded sleeve (211).

6. The miniature fluxgate sensor of claim 1, wherein, The installation frame body (21) is cuboid frame structure.

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