Magnetotelluric instrument and host box body thereof

Abstract

The utility model provides a host box body of a magnetotelluric instrument. The host box body comprises a bottom box and a cover plate, the four side plates are connected to the four side edges of the bottom plate respectively and are bent to be perpendicular to the bottom plate. The side plate is provided with an opening which is communicated with the upper top edge of the side plate and is used for a circuit to pass through; wing plates extend from the upper top edges of the left side plate and the right side plate, and the openings connected with the wing plates extend to the free edges of the wing plates; a first chamfer is arranged at the corner of the wing plate; the width of the cover plate is larger than that of the bottom box, and the length of the cover plate is larger than the maximum length of the wing plates. Corresponding screw holes are formed in the cover plate and the wing plate; a second chamfer is arranged at the corner of the cover plate, and the second chamfer of the cover plate covers and shields the first chamfer. Manufacturing is easy, wiring is more convenient through the arrangement of the opening structure, and meanwhile the assembling difficulty is reduced through the connection mode of the cover plate and the wing plate.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetotelluric instruments, in particular to a mainframe box body of a magnetotelluric instrument. Background Art

[0002] The magnetotelluric instrument is an earth exploration instrument used in the field of geophysical science, which can mainly perform magnetotelluric detection. With its small size, light weight, easy operation, no construction, non-destructive detection, and flexibility, the magnetotelluric detector can work in complex terrain and harsh geographical environments. It is now widely used in the exploration of new oil fields in the field, the prediction and evaluation of reservoirs to be drilled, and the oil and gas structures contained in the reservoirs.

[0003] For example, the utility model patent with the Chinese patent announcement number CN204228974U discloses the structure of a magnetotelluric detector. Specifically, it adopts a cast aluminum structural chassis consisting of an upper cover assembly, a lower shell assembly and a printed circuit board module assembly; the upper cover assembly includes a cast aluminum upper cover and components such as a touch display screen and a power switch; the lower shell assembly includes a cast aluminum lower shell and components such as a USB interface, a network interface, and a power supply; the upper cover assembly and the lower shell assembly are flipped through cast aluminum hinges to achieve equipment maintainability, and the upper cover assembly and the lower shell assembly are reliably connected and fixed through 4 non-loose bolts; the printed circuit board module assembly consists of a mounting frame and 5 functional modules and 1 motherboard; the various functional modules of the printed circuit board module assembly are aligned with the rectangular plugs on the motherboard through rectangular sockets to achieve electrical connection between the above-mentioned functional modules. However, the various interfaces of this magnetotelluric instrument are exposed to the outside of the lower shell, which often damages the interface or causes dust to enter the interface, affecting its use.

[0004] At present, there is another suitcase-type magnetotelluric instrument with a plastic shell, which is installed with a metal box body in a plastic suitcase. The metal box body is used to play the role of electromagnetic shielding, and a host module such as a circuit board is set in the metal box body. However, the metal box body of this method needs to have multiple holes for the lines to pass through. Due to the large number of lines, the installation steps of the metal box body in the suitcase are complicated, and the lines are easily installed incorrectly. Utility Model Content

[0005] The main purpose of the utility model is to provide a new mainframe box of a magnetotelluric instrument to solve the above technical problems.

[0006] To achieve the above-mentioned purpose, the utility model provides a main box body of a magnetotelluric instrument, which is rectangular and includes a bottom box and a cover plate; wherein the bottom box includes a bottom plate and four side plates, and the four side plates are respectively a front side plate and a rear side plate along the length direction, and a left side plate and a right side plate along the width direction;

[0007] The four side panels are respectively connected to the four side edges of the bottom panel and are bent to be perpendicular to the bottom panel; at least one of the four side panels is provided with an opening for the circuit to pass through, and the opening is connected to the upper top edge of the side panel to form an opening structure;

[0008] The upper edges of the left and right panels are both extended with wing panels, the wing panels are bent outward along the upper edges and are perpendicular to the corresponding side panels; the opening connected to the wing panels extends on the wing panels to the free edges of the wing panels to form an opening structure that passes through the wing panels and the upper edges of the side panels; the corners of the wing panels are provided with first chamfers;

[0009] The cover plate is rectangular, the width of the cover plate is greater than the width of the base box, and the length of the cover plate is greater than the maximum length between the left wing plate and the right wing plate of the base box; corresponding screw holes are provided on the cover plate and the wing plate for buckling the cover plate and the base box; a second chamfer is provided at the corner of the cover plate, and the second chamfer of the cover plate covers and conceals the first chamfer.

[0010] Preferably, a circular through hole is provided on the front side plate.

[0011] Preferably, the wing panel connected to the opening is divided into a plurality of sub-wing panels by the opening; a positioning column is convexly provided on at least one sub-wing panel, and a positioning hole corresponding to the positioning column is provided on the cover plate.

[0012] Preferably, the screw hole is located on the sub-wing plate at the end.

[0013] Preferably, the opening is arc-shaped at the bottom of the side plate.

[0014] Preferably, the opening has at least two different sizes.

[0015] Preferably, a plurality of transverse and longitudinal installation grooves are provided on the back side of the cover body, and the cross-section of the installation grooves is T-shaped. The installation grooves can be used to install spacers to divide the space in the bottom box into a plurality of independent sub-spaces.

[0016] Preferably, a sealing layer is attached to the edge of the back side of the cover plate to seal the gap between the cover plate and the upper top edge of the side plate.

[0017] Preferably, the side edges of the side panels are sealed and connected by welding.

[0018] The utility model also provides a magnetotelluric instrument, comprising a plastic suitcase-type shell, a box body as described in any one of the above items and a wiring panel arranged in the plastic suitcase-type shell, wherein the box body is provided with circuit elements of the magnetotelluric instrument, the circuit of the circuit element is connected to the outside of the box body through the opening of the box body, the circuit is connected to the wiring panel, and the front of the wiring panel is provided with an identification portion for identifying information of the circuit.

[0019] The main box body of the magnetotelluric instrument in the utility model is formed into a rectangular box body by bending four side panels respectively connected to the four side edges of the bottom plate to be perpendicular to the bottom plate; the upper top edges of the left side plate and the right side plate are both extended with wing panels, the wing panels are bent outward along the upper top edges and are perpendicular to the corresponding side panels; and at least one of the four side panels is provided with an opening connected to the upper top edge of the side panel and for the circuit to pass through, and at the same time, the opening connected to the wing panel is on the wing panel. The cover plate is rectangular, the width of the cover plate is greater than the width of the bottom box, and the length of the cover plate is greater than the maximum length between the left wing plate and the right wing plate of the bottom box; the cover plate and the wing plate are provided with corresponding screw holes for buckling the cover plate and the bottom box; the cover plate is provided with a second chamfer at the corner, and the second chamfer of the cover plate covers and hides the first chamfer. The box body is easy to manufacture, and the opening structure is more convenient for wiring. At the same time, the connection method between the cover plate and the wing plate reduces the difficulty of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 It is a three-dimensional exploded view of a box body in one embodiment of the utility model;

[0022] Figure 2 yes Figure 1 A schematic diagram of the structure of the bottom box before the plate is bent;

[0023] Figure 3 yes Figure 2 A three-dimensional diagram of a bottom box formed after the plate is bent;

[0024] Figure 4It is a three-dimensional diagram of the assembled box body in one embodiment of the utility model;

[0025] Figure 5 It is a structural schematic diagram of a cover plate and a partition plate in an embodiment of the utility model;

[0026] Figure 6 yes Figure 5 Enlarged views of points A and B in the middle.

[0027] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The technical solution in this embodiment will be described clearly and completely below in conjunction with the drawings in this embodiment. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that all directional indications in this embodiment (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation" and the like should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] 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.

[0033] Please combine Figures 1 to 4 As shown, a main box body 100 of a magnetotelluric instrument provided in one embodiment of the utility model.

[0034] The box body 100 is rectangular in shape as a whole, and includes a bottom box 10 and a cover plate 20 .

[0035] The bottom box 10 includes a bottom plate 15 and four side plates, wherein the four side plates are respectively a front side plate 11 and a rear side plate 12 along the length direction, and a left side plate 13 and a right side plate 14 along the width direction; the four side plates are respectively connected to the four side edges of the bottom plate 15, and are bent to be perpendicular to the bottom plate 15; at least one of the four side plates is provided with an opening 101 for the line to pass through, and the opening 101 is connected to the upper top edge of the side plate to form an opening structure.

[0036] Those skilled in the art will know that after cutting and punching the aluminum plate (the corresponding structure will be described later), the four side edges of the bottom box 10 can be welded after being bent along the side edges of the bottom plate 15. Preferably, in this embodiment, the plate can be made of 5052 aluminum alloy, and can be silver-white anodized and sandblasted after bending and welding.

[0037] The opening 101 is directly connected to the upper edge of the side plate. During installation, the circuit of the circuit element inside the bottom box 10 can be directly inserted into the opening 101 and directly extended to the outside of the bottom box 10 to connect with the wiring panel of the magnetotelluric instrument. Compared with the method of opening a round hole, which requires the wire end to pass through the round hole, the method of using the opening 101 can directly insert the circuit, and the installation operation is simpler.

[0038] Those skilled in the art should know that in a conventional suitcase-type magnetotelluric instrument with a plastic shell, a metal box body 100 is installed in a plastic suitcase, and the box body 100 is used to play the role of electromagnetic shielding, and a host module such as a circuit board and circuit elements are arranged in the metal box body 100. Then, a wiring panel is installed above the box body 100, and the circuit of the circuit element is connected to the outside of the box body 100 through the opening 101 of the box body 100. The circuit is connected to the wiring panel, and the front of the wiring panel is provided with an identification part for identifying the information of the circuit. It can be understood that those skilled in the art should know that the wiring panel is generally provided with a terminal, which is connected to the circuit and can be connected to an external measuring electrode; the identification part can be a text printed or otherwise written on the wiring panel. Preferably, a display screen can also be provided on the wiring panel to display necessary information. The structure of the above-mentioned suitcase-type magnetotelluric instrument with a plastic shell except the box body 100 is the same as that in the prior art. The main utility model point of the utility model lies in the structure of the box body 100. The remaining structures will not be repeated in this application. Those skilled in the art can select them according to their needs.

[0039] A wing panel 16 extends from the upper top edge of the left side panel 13 and the right side panel 14, and the wing panel 16 is bent outward along the upper top edge and is perpendicular to the corresponding side panel; the opening 101 connected to the wing panel 16 extends on the wing panel 16 to the free edge of the wing panel 16 to form an opening structure that passes through the wing panel 16 and the upper top edge of the side panel; a first chamfer 161 is provided at the corner of the wing panel 16.

[0040] The cover plate 20 is rectangular, the width of the cover plate 20 is greater than the width of the base box 10, and the length of the cover plate 20 is greater than the maximum length between the left wing plate 16 and the right wing plate 16 of the base box 10; corresponding screw holes 30 are provided on the cover plate 20 and the wing plate 16 for buckling the cover plate 20 and the base box 10; the second chamfer 162 is provided at the corner of the cover plate 20, and the second chamfer 162 of the cover plate 20 covers and shields the first chamfer 161.

[0041] Specifically, side wing plates 16 are provided on the left side plate 13 and the right side plate 14 along the width direction, and the cover plate 20 is fixed by the wing plates 16, without providing wing plates on all four sides.

[0042] The cover plate 20 and the wing plate 16 are provided with corresponding screw holes 30. The cover plate 20 and the bottom box 10, as well as the box body 100, can be fixed by screws passing through the screw holes 30 and then fixed into the shell of the plastic suitcase.

[0043] In other embodiments, threaded holes or other snap-fit ​​structures may be provided on the bottom plate 15 to achieve the fixation of the bottom plate 15 to the shell of the plastic suitcase. The cover plate 20 and the wing plate 16 are provided with corresponding screw holes 30, which can only be used to achieve the buckling of the cover plate 20 and the bottom box 10 or to assist in the fixation of the box body 100 to the shell of the plastic suitcase.

[0044] The width of the cover plate 20 is greater than the width of the bottom box 10, and the length of the cover plate 20 is greater than the maximum length between the left wing plate 16 and the right wing plate 16 of the bottom box 10; a second chamfer 162 is provided at the corner of the cover plate 20, and the second chamfer 162 of the cover plate 20 covers and shields the first chamfer 161. The cover plate 20 fully covers the bottom box 10. The chamfer can better achieve installation and positioning.

[0045] Preferably, the wing panel 16 connected to the opening 101 is divided into a plurality of sub-wing panels by the opening 101. Functional design can be performed on the sub-wing panels at different positions.

[0046] Preferably, at least one of the sub-wing plates is provided with a locating column 163, and the cover plate 20 is provided with a locating hole 164 corresponding to the locating column 163. During installation, the cover plate 20 and the bottom box 10 can be directly positioned and aligned through the locating column 163 and the locating hole 164.

[0047] Preferably, the screw hole 30 is located on the sub-wing plate at the end, and similarly, the chamfer is also provided on the sub-wing plate.

[0048] Preferably, the opening 101 at the bottom of the side plate is in an arc shape to better match the shape of the circuit.

[0049] Preferably, the opening 101 has at least two different sizes to allow different lines to pass through.

[0050] Preferably, a circular through hole 111 is provided on the front side plate 11. The through hole 111 is also used for a line or an operating rod to pass through.

[0051] Preferably, please combine Figure 5 and Figure 6 The back of the cover plate 20 is provided with a plurality of transverse and longitudinal installation grooves 21, the cross section of the installation groove 21 is T-shaped, and the installation groove 21 can be used to install a spacer 22 to divide the space in the bottom box 10 into a plurality of independent sub-spaces. When in use, the sub-spaces are separated according to the needs of the circuit elements of the magnetotelluric instrument, and the spacers 22 of corresponding lengths are installed from the edge of the cover plate 20 into the installation groove 21 and then pushed to a fixed position.

[0052] Preferably, a sealing layer is attached to the edge of the back side of the cover plate 20 to seal the gap between the cover plate 20 and the upper top edge of the side plate.

[0053] Preferably, the side edges of the side panels are sealed and connected by welding.

[0054] The utility model also provides a magnetotelluric instrument, comprising a plastic suitcase-type shell, a box body as described in any one of the above items and a wiring panel arranged in the plastic suitcase-type shell, wherein the box body is provided with circuit elements of the magnetotelluric instrument, the circuit of the circuit element is connected to the outside of the box body through the opening of the box body, the circuit is connected to the wiring panel, and the front of the wiring panel is provided with an identification portion for identifying information of the circuit.

[0055] The main box body of the magnetotelluric instrument in the utility model is formed into a rectangular box body by bending four side panels respectively connected to the four side edges of the bottom plate to be perpendicular to the bottom plate; the upper top edges of the left side plate and the right side plate are both extended with wing panels, the wing panels are bent outward along the upper top edges and are perpendicular to the corresponding side panels; and at least one of the four side panels is provided with an opening connected to the upper top edge of the side panel and for the circuit to pass through, and at the same time, the opening connected to the wing panel is on the wing panel. The cover plate is rectangular, the width of the cover plate is greater than the width of the bottom box, and the length of the cover plate is greater than the maximum length between the left wing plate and the right wing plate of the bottom box; the cover plate and the wing plate are provided with corresponding screw holes for buckling the cover plate and the bottom box; the cover plate is provided with a second chamfer at the corner, and the second chamfer of the cover plate covers and hides the first chamfer. The box body is easy to manufacture, and the opening structure is more convenient for wiring. At the same time, the connection method between the cover plate and the wing plate reduces the difficulty of assembly.

[0056] The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the protection scope of the present invention.

Claims

1. A main box body of a magnetotelluric instrument, which is rectangular and includes a bottom box and a cover plate; characterized in that: in, The bottom box comprises a bottom plate and four side plates, wherein the four side plates are respectively a front side plate and a rear side plate along the length direction, and a left side plate and a right side plate along the width direction; The four side panels are respectively connected to the four side edges of the bottom panel and are bent to be perpendicular to the bottom panel; at least one of the four side panels is provided with an opening for the circuit to pass through, and the opening is connected to the upper top edge of the side panel to form an opening structure; Wing plates extend from the upper edges of the left side plate and the right side plate, and the wing plates are bent outward along the upper edges and are perpendicular to the corresponding side plates; The opening connected to the wing plate extends on the wing plate to the free edge of the wing plate to form an opening structure penetrating the wing plate and the upper top edge of the side plate; a first chamfer is provided at the corner of the wing plate; The cover plate is rectangular, the width of the cover plate is greater than the width of the base box, and the length of the cover plate is greater than the maximum length between the left wing plate and the right wing plate of the base box; corresponding screw holes are provided on the cover plate and the wing plate for buckling the cover plate and the base box; a second chamfer is provided at the corner of the cover plate, and the second chamfer of the cover plate covers and conceals the first chamfer.

2. The box body according to claim 1, characterized in that: The front side plate is provided with a circular through hole.

3. The box body according to claim 1, characterized in that: The wing plate connected to the opening is divided into a plurality of sub-wing plates by the opening; a positioning column is convexly provided on at least one sub-wing plate, and a positioning hole corresponding to the positioning column is provided on the cover plate.

4. The box body according to claim 3, characterized in that: The screw hole is located on the sub-wing plate at the end.

5. The box body according to claim 1, characterized in that: The opening is in an arc shape at the bottom of the side plate.

6. The box body according to claim 1, characterized in that: The openings have at least two different sizes.

7. The box body according to any one of claims 1 to 6, characterized in that: The back of the cover plate is provided with a plurality of transverse and longitudinal installation grooves, the cross section of the installation grooves is T-shaped, and the installation grooves can be used to install spacers to divide the space in the bottom box into a plurality of independent sub-spaces.

8. The box body according to any one of claims 1 to 6, characterized in that: A sealing layer is attached to the edge of the back side of the cover plate, which is used to seal the gap between the cover plate and the upper top edge of the side plate.

9. The box body according to any one of claims 1 to 6, characterized in that: The side edges of the side plates are sealed and connected by welding.

10. A magnetotelluric instrument, characterized in that: It comprises a plastic suitcase-type shell, a box body as described in any one of claims 1 to 9 and a wiring panel arranged in the plastic suitcase-type shell, wherein the box body is provided with circuit elements of the magnetotelluric instrument, the circuit of the circuit element is connected to the outside of the box body through the opening of the box body, the circuit is connected to the wiring panel, and the front of the wiring panel is provided with an identification portion for identifying information of the circuit.

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