Magnetotelluric instrument and top box thereof

Abstract

The utility model provides a magnetotelluric instrument and a top box thereof. The top box comprises a bottom plate and at least two box bodies. Each box body comprises a bottom panel 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; a left wing plate and a right wing plate which face the outside of the box body respectively extend from the upper top edges of the left side plate and the right side plate, and first mounting holes are formed in the left wing plate and the right wing plate; at least one of the front side plate and the rear side plate is provided with an opening for a circuit to pass through. The bottom plate is rectangular, the length of the bottom plate is larger than the sum of the widths of the box body, and the width of the bottom plate is larger than the maximum length between the left wing plate and the right wing plate; the box bodies are installed on the bottom plate side by side in the width direction at intervals in the length direction of the bottom plate. The plurality of box bodies are easy to manufacture, wiring is more convenient by arranging the opening structure, and different electronic components are separately arranged at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetotelluric instruments, and particularly to the top box of a magnetotelluric instrument. Background Technique

[0002] A magnetotelluric instrument is a geophysical exploration instrument used in the field of geophysical science, mainly for magnetotelluric exploration. With the characteristics of small volume, light weight, simple operation, no need for construction, non-invasive detection, and flexibility, and being able to work in complex terrains and harsh geographical environments, it has now been widely used in the exploration of new exploration areas of oil fields in the wild, the prediction and evaluation of reservoirs to be drilled, and the oil and gas structures contained in the reservoirs.

[0003] The conventional system composition of a magnetotelluric instrument includes: a mainframe, a preamplifier, 2 groups of electrical channel electrodes, 3 magnetic sensors, connecting cables, etc.

[0004] For example, the utility model patent with the Chinese patent publication number CN204228974U discloses the structure of a magnetotelluric exploration instrument. Specifically, it adopts a cast aluminum structure chassis composed 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, a touch display screen, a power switch, and other components; the lower shell assembly includes a cast aluminum lower shell, a USB interface, a network interface, a power supply, and other components; the upper cover assembly and the lower shell assembly are flipped through a cast aluminum hinge to achieve equipment maintainability, and are reliably connected and fixed by 4 non-loosening bolts; the printed circuit board module assembly is composed of an installation frame, 5 functional modules, and 1 motherboard; the 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 functional modules. However, the printed circuit board module assembly of this magnetotelluric instrument installs 5 functional modules and 1 motherboard through an installation frame, with a complex installation structure and poor partitioning.

[0005] Currently, there is also a suitcase-type magnetotelluric instrument with a plastic shell. By installing a metal box body inside the plastic suitcase, the metal box body is used to play the role of electromagnetic shielding, and at the same time, mainframe modules such as circuit boards are arranged inside the metal box body. However, the circuit boards and other mainframe modules are all arranged inside, and multiple holes need to be opened on the metal box body for the wires to pass through. Due to the large number of wires, the installation steps of the metal box body in the suitcase are complex, and the wires are extremely prone to installation errors. Content of the Utility Model

[0006] The main purpose of the utility model is to provide a new magnetotelluric instrument and its top box to solve the above technical problems.

[0007] To achieve the above purpose, a top box of a magnetotelluric instrument provided by the utility model is rectangular, and it includes a bottom plate and at least two box bodies; wherein,

[0008] Each of the boxes includes a bottom panel and four side panels. The four side panels are respectively a front side panel and a rear side panel along the length direction, and a left side panel and a right side panel along the width direction. The four side panels are respectively connected to four sides of the bottom panel.

[0009] At the upper top edges of the left side panel and the right side panel, there extend out a left wing panel and a right wing panel towards the outside of the box. The left wing panel and the right wing panel are perpendicular to the corresponding side panels, and the left wing panel and the right wing panel are both provided with first mounting holes.

[0010] At least one of the front side panel and the rear side panel is provided with an opening for a circuit to pass through. The opening communicates with the upper top edge of the side panel to form an opening structure.

[0011] The bottom plate is rectangular. The length of the bottom plate is greater than the sum of the widths of the boxes, and the width of the bottom plate is greater than the maximum length between the left wing panel and the right wing panel.

[0012] The boxes are installed on the bottom plate side by side and at intervals along the length direction of the bottom plate in its width direction. Second mounting holes corresponding to the first mounting holes are provided on the bottom plate, and the boxes and the bottom plate are installed together through the first mounting holes, the second mounting holes and bolts.

[0013] Furthermore, a first chamfer is provided at the corners of the left wing panel and the right wing panel; a second chamfer is provided at the corners of the bottom plate, and the second chamfer of the bottom plate covers and shields the first chamfer.

[0014] Furthermore, the at least two boxes include a battery box and a main board box; the opening for the circuit to pass through is provided on the side panel of the main board box adjacent to the battery box.

[0015] Furthermore, a plurality of openings for circuits to pass through are provided on the bottom panel of the main board box.

[0016] Furthermore, the opening is arc-shaped at the bottom of the side panel.

[0017] Furthermore, the number of the openings is multiple, and the multiple openings have at least two different sizes.

[0018] Furthermore, the number of the openings is multiple, and the openings include one or more of square holes, round holes and rectangular holes.

[0019] Furthermore, a plurality of transverse and longitudinal mounting grooves are provided on the back surface of the side of the bottom plate facing the box. The cross section of the mounting groove is T-shaped, and the mounting groove can be used for mounting spacers to divide the space inside the box into multiple independent sub-spaces.

[0020] Further, the left wing plate and the right wing plate are bent outward along the upper top edge and are perpendicular to the corresponding side plates. The side plates are bent along the edge connected to the bottom plate to be perpendicular to the bottom plate, and the sides of the side plates are sealed and connected by welding.

[0021] The present utility model further provides a magnetotelluric instrument, including a plastic suitcase-type housing, a top box as described in any one of the above in the plastic suitcase-type housing, and a wiring panel. Circuit components of the magnetotelluric instrument are arranged in the top box, and the circuits of the circuit components are connected to the outside of the box body through the openings and / or openings of the top box. The circuits are connected to the wiring panel, and an identification part for identifying information of the circuits is arranged on the front surface of the wiring panel.

[0022] In the main box body of the magnetotelluric instrument of the present utility model, by providing a plurality of box bodies and a bottom plate, each box body includes a bottom panel and four side plates. 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 plates are respectively connected to four sides of the bottom panel. Left wing plates and right wing plates extending towards the outside of the box body are respectively extended at the upper top edges of the left side plate and the right side plate. The left wing plate and the right wing plate are perpendicular to the corresponding side plates, and first mounting holes are provided on both the left wing plate and the right wing plate. An opening for a circuit to pass through is provided on at least one of the front side plate and the rear side plate, and the opening communicates with the upper top edge of the side plate to form an opening structure. The bottom plate is rectangular, the length of the bottom plate is greater than the sum of the widths of the box bodies, and the width of the bottom plate is greater than the maximum length between the left wing plate and the right wing plate. The box bodies are installed on the bottom plate side by side and at intervals along the length direction of the bottom plate in the width direction of the box bodies. Second mounting holes corresponding to the first mounting holes are provided on the bottom plate, and the box bodies and the bottom plate are installed together through the first mounting holes, the second mounting holes and bolts. The plurality of box bodies are not only easy to manufacture, but also more convenient for wiring by providing an opening structure. At the same time, different electronic components are separately arranged in different box bodies. The operator can first separately assemble each box body and the internal electronic components, and then install each box body on the bottom plate one by one, which not only simplifies the circuit but also is easy to install and not prone to errors. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0024] Figure 1 It is an exploded perspective view of the box body in an embodiment of the present utility model.

[0025] Figure 2 It is Figure 1 a schematic perspective view of the main board box body in

[0026] Figure 3 It is Figure 1 a schematic perspective view of the battery box body in

[0027] Figure 4 It is an assembled perspective view of the box body in an embodiment of the present utility model.

[0028] Figure 5 It is a schematic view of the structure of the cover plate and the partition in an embodiment of the present utility model.

[0029] Figure 6 It is Figure 5 an enlarged view of locations A and B in

[0030] The achievement of the object, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed Embodiment

[0031] Next, the technical solutions in this embodiment will be clearly and completely described in conjunction with the accompanying drawings in this embodiment. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back,...) in this embodiment are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0033] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] In addition, the technical solutions between the various embodiments of the present utility model can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0036] Please refer to Figures 1 to 4 as shown, the top box 100 of the magnetotelluric instrument provided in an embodiment of the present utility model.

[0037] The top box 100 is generally rectangular in shape and includes at least two box bodies 10 and a bottom plate 20.

[0038] Among them, each of the box bodies 10 includes a bottom panel 15 and four side plates. 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 sides of the bottom panel 15.

[0039] Specifically, the side plates can be bent to be perpendicular to the bottom panel 15 through the edges connected to the bottom panel 15, and the sides of the side plates are sealed and connected by welding. Those skilled in the art can know that after cutting the aluminum plate and punching holes (the corresponding structure will be introduced later), and then bending along the side edges of the bottom panel 15, the four side edges of the box body 10 can be welded. Preferably, in this embodiment, the aluminum plate can be made of 5052 aluminum alloy, and processes such as silver-white anodizing and sandblasting can be carried out after bending and welding.

[0040] At the upper top edges of the left side plate 13 and the right side plate 14, left wing plates 131 and right wing plates 141 extending towards the outside of the box body 10 are respectively provided. The left wing plates 131 and the right wing plates 141 are perpendicular to the corresponding side plates, and first mounting holes 60 are provided on both the left wing plates 131 and the right wing plates 141.

[0041] Furthermore, the left wing plates 131 and the right wing plates 141 are bent outward along the upper top edges and are perpendicular to the corresponding side plates.

[0042] At least one of the front side plate 11 and the rear side plate 12 is provided with an opening 101 for the circuit to pass through. The opening 101 communicates with the upper top edge of the side plate to form an opening structure.

[0043] The opening 101 is directly connected to the upper top edge of the side plate. During installation, the wires of the circuit components disposed inside the box body 10 can be directly snapped into the opening 101 and directly extend to the outside of the box body 10 to be connected to the wiring panel of the magnetotelluric instrument. Compared with the way of opening a round hole, where the wire head needs to pass through the round hole, the way of using the opening 101 allows the wire to be directly placed, making the installation operation more convenient.

[0044] It should be noted that for a rectangular component, the definition of length and width should be that the longer side of the rectangle is called the length, and the shorter side is called the width.

[0045] The bottom plate 20 is rectangular. The length of the bottom plate 20 is greater than the sum of the widths of the box body 10. The width of the bottom plate 20 is greater than the maximum length between the left wing plate 131 and the right wing plate 141. The box body 10 is installed on the bottom plate 20 side by side and at intervals along the length direction of the bottom plate 20 in its width direction. Second mounting holes 62 corresponding to the first mounting holes 60 are provided on the bottom plate 20. The box body 10 and the bottom plate 20 are installed together through the first mounting holes 60, the second mounting holes 62, and bolts (not shown in the figure). Specifically, corresponding screw holes are provided on the bottom plate 20, the left wing plate 131, and the right wing plate 141. By passing screws / bolts through the screw holes and then fixing them into the shell of the plastic suitcase, the bottom plate 20 can be buckled with the box body 10, and the top box 100 can be fixed.

[0046] Those skilled in the art should know that in a commonly used magnetotelluric instrument in a plastic shell suitcase, by installing a metal top box 100 inside the plastic suitcase, the metal top box 100 is used to play an electromagnetic shielding role, and at the same time, main machine modules such as circuit boards and circuit components are arranged in multiple box bodies 10 of the metal top box 100.

[0047] Multiple box bodies 10 are not only easy to manufacture but also more convenient for wiring through the opening 101 structure. At the same time, different electronic components are separately arranged in different box bodies 10. The operator can first separately assemble each box body 10 and the internal electronic components, and then install each box body 10 on the bottom plate 20 one by one, which not only simplifies the wiring but also is easy to install and not prone to errors.

[0048] Then, a wiring panel is installed above the top box 100. The wires of the circuit components are connected to the outside of the top box 100 through the opening 101 (and / or the opening 102, which will be introduced later) of the top box 100. The wires are connected to the wiring panel, and an identification part for identifying the information of the wires is provided on the front of the wiring panel.

[0049] It is understandable that those skilled in the art should know that terminal posts are generally provided on the wiring panel. The terminal posts are connected to the circuit and can also be connected to external measuring electrodes. The identification part can be words printed or written on the wiring panel in other ways. Preferably, a display screen can also be provided on the wiring panel to display necessary information. The structures of the portable magnetotelluric instrument with a plastic shell except for the top box 100 are the same as those in the prior art. The main inventive point of the present invention lies in the structure of the top box 100, and the other structures will not be elaborated in this application. Those skilled in the art can select and cooperate according to needs.

[0050] In other embodiments, threaded holes or other snap structures can also be provided on the bottom plate 20 to realize the fixation of the bottom plate 20 to the shell of the plastic suitcase. Corresponding screw holes are provided on the bottom plate 20, the left wing plate 131 and the right wing plate 141, which can be used only to fasten the bottom plate 20 to the box body 10 or to assist in fixing the top box 100 on the shell of the plastic suitcase.

[0051] Furthermore, first chamfers 161 are provided at the corners of the left wing plate 131 and the right wing plate 141; second chamfers 162 are provided at the corners of the bottom plate 20, and the second chamfers 162 of the bottom plate 20 cover and shield the first chamfers 161.

[0052] Specifically, side wing plates (the left wing plate 131 and the right wing plate 141) are provided on the left side plate 13 and the right side plate 14 in the width direction, and the bottom plate 20 is fixed by the side wing plates, and it is not necessary to provide side wing plates on all four sides.

[0053] Furthermore, the at least two box bodies 10 include a battery box body (such as Figure 3 ) and a main board box body battery box body (such as Figure 3 ); an opening 101 for the circuit to pass through is provided on the side plate of the main board box body adjacent to the battery box body.

[0054] Furthermore, a plurality of openings 102 for the circuit to pass through are provided on the bottom panel 15 of the main board box body.

[0055] Furthermore, the opening 101 is arc-shaped at the bottom of the side plate.

[0056] Furthermore, the number of the openings 101 is multiple, and the multiple openings 101 have at least two different sizes.

[0057] Furthermore, the number of the openings 102 is multiple, and the openings 102 include one or more of square holes, round holes and rectangular holes.

[0058] Preferably, please refer to Figure 5 andFigure 6 , in a preferred embodiment, a plurality of transverse and longitudinal mounting grooves 21 are formed on the back surface of the bottom plate 20 facing the box body 10. The cross-section of the mounting groove 21 is T-shaped, and the mounting groove 21 can be used to mount partition sheets to divide the space inside the box body 10 into multiple independent sub-spaces. During use, according to the needs of the sub-spaces to be separated for the circuit components of the magnetotelluric instrument, corresponding partitioning is carried out. As long as the partition sheet 22 with the appropriate length is installed into the mounting groove 21 from the edge of the bottom plate 20 and then pushed to the fixed position.

[0059] Preferably, a sealing layer is attached to the edge of the back surface of the bottom plate 20 for sealing the gap between the bottom plate 20 and the upper top edge of the side plate.

[0060] The present utility model further provides a magnetotelluric instrument, including a plastic portable case-type housing, a top box as described in any one of the above disposed inside the plastic portable case-type housing, and a wiring panel. Circuit components of the magnetotelluric instrument are disposed inside the top box, and the circuits of the circuit components are connected to the outside of the box body through the openings and / or openings of the top box. The circuits are connected to the wiring panel, and an identification portion for identifying information of the circuits is provided on the front surface of the wiring panel.

[0061] The above are only the preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model. Any equivalent structural or equivalent process transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the protection scope of the present utility model.

Claims

1. A top box of a magnetotelluric instrument, in a rectangular shape, characterized in that: It includes a bottom plate and at least two boxes; wherein, Each of the box bodies comprises a bottom panel and four side panels, wherein the four side panels are respectively a front side panel and a rear side panel along the length direction, and a left side panel and a right side panel along the width direction, and the four side panels are respectively connected to the four sides of the bottom panel; A left wing plate and a right wing plate extending toward the outside of the box body are respectively formed at the upper top edges of the left side plate and the right side plate, the left wing plate and the right wing plate are perpendicular to the corresponding side plate, and a first mounting hole is formed on the left wing plate and the right wing plate; At least one of the front side plate and the rear side plate is provided with an opening for the circuit to pass through, and the opening is connected to the upper top edge of the side plate to form an opening structure; The bottom plate is rectangular, the length of the bottom plate is greater than the sum of the widths of the box body, and the width of the bottom plate is greater than the maximum length between the left wing plate and the right wing plate; The box body is installed on the base plate in parallel and at intervals along the length direction of the base plate in its width direction; a second mounting hole corresponding to the first mounting hole is opened on the base plate, and the box body and the base plate are installed together through the first mounting hole, the second mounting hole and bolts.

2. The top box according to claim 1, characterized in that: A first chamfer is provided at the corners of the left wing plate and the right wing plate; a second chamfer is provided at the corner of the bottom plate, and the second chamfer of the bottom plate covers and hides the first chamfer.

3. The top box according to claim 1, characterized in that: The at least two boxes include a battery box and a mainboard box; the opening for the circuit to pass through is provided on the side panels of the mainboard box adjacent to the battery box.

4. The top box according to claim 3, characterized in that: The bottom panel of the mainboard box body is provided with a plurality of openings for the circuits to pass through.

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

6. The top box according to claim 1, characterized in that: There are multiple openings, and the multiple openings have at least two different sizes.

7. The top box according to claim 4, characterized in that: There are multiple openings, and the openings include one or more of square holes, round holes and rectangular holes.

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

9. The top box according to any one of claims 1 to 7, characterized in that: The left wing plate and the right wing plate are bent outward along the upper top edge and are perpendicular to the corresponding side plates. The side plates are bent through the edges connected to the bottom panel to be perpendicular to the bottom panel. 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 top box as described in any one of claims 1 to 9 and a wiring panel arranged in the plastic suitcase-type shell, wherein the circuit elements of the magnetotelluric instrument are arranged in the top box, the circuits of the circuit elements are connected to the outside of the box body through the openings and / or holes of the top box, the circuits are connected to the wiring panel, and the front side of the wiring panel is provided with an identification portion for identifying information of the circuits.

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