30results about How to "Make electrical connections" patented technology

The invention provides a photoelectric co-packaging structure based on a glass substrate, and relates to the technical field of photon integration. The photoelectric co-packaging structure based on the glass substrate comprises a substrate, a core layer, an upper wrapping layer, a waveguide layer and a surface incidence detector which are stacked in sequence, wherein the waveguide layer comprises a grating structure, and the grating structure is used for vertically outputting an input optical signal; and the surface incidence detector is arranged on the grating structure and is used for receiving the vertically output optical signal and converting the received optical signal into an electric signal.

The utility model provides a submarine cable connection box. The submarine cable connection box provided by the utility model comprises a connection box body, reinforcing assemblies and a sealing assembly, the reinforcing assemblies are arranged on two opposite sides of the connection box body, and each reinforcing assembly comprises a fixed seat, a first connection sleeve and a second connection sleeve; the fixing seat is fixedly connected to one side of the connection box body, the first connecting sleeve is connected to the fixing seat, the fixing seat is provided with a first mounting hole, the first connecting sleeve is provided with a second mounting hole, the first mounting hole is communicated with the interior of the connection box body, and the first mounting hole is communicated with the second mounting hole. The first mounting hole and the second mounting hole form a channel for a cable core of a submarine cable to penetrate into the connection box body. The first connecting sleeve is sleeved with the second connecting sleeve, one end of the second connecting sleeve is connected to the fixing base, and a gap with the adjustable width is formed between the first connecting sleeve and the second connecting sleeve. The utility model provides a submarine cable connection box which can prevent continuous discharge of induced current and protect an optical unit.

The invention discloses a packaging method of a multi-layer cascaded lightning protection filtering connector. The packaging method comprises the following steps: bonding functional modules on a plurality of substrates; the multiple substrates are stacked into a whole in the vertical direction, and the metal bonding pads of every two adjacent substrates are connected through contact pins; activating the functional module and a metal bonding pad of the substrate by adopting a plasma activation technology; bonding and connecting the functional module and a metal bonding pad of the substrate by adopting a thick wire lead to obtain a laminated substrate; performing plastic packaging on the laminated substrate; cutting the laminated substrate after plastic packaging according to a preset requirement to obtain a plurality of independent modules; a plurality of independent modules are assembled within the connector. The invention has the advantages of miniaturization, low cost, low weight and integration.

The invention discloses a multilayer printed circuit board wiring process, and relates to the technical field of electronic circuit board manufacturing, and the method comprises the steps: obtaining a wiring target and preset parameter conditions of a multilayer printed circuit board; calculating a target connection mode by adopting a circuit board wiring model based on the wiring target of the multi-layer printed circuit board and preset parameter conditions; coating photoresist on an inner-layer copper foil of the middle-layer substrate, transferring a circuit pattern to the copper foil through exposure and development processes according to a wiring target path, target layer selection, a target via hole position and a target element position, and drilling at a specified position by using a drilling machine; forming a conductive layer on the hole wall of the hole through an electroplating process; and repeating the manufacturing process of the inner layer of the middle-layer substrate on the outer-layer copper foil of the middle-layer substrate according to the wiring target path, the target layer selection, the target via hole position and the target element position to form an outer-layer circuit pattern. The efficiency of the wiring process of the printed circuit board is improved.

The utility model relates to a technical field of automobile component testing, specifically relates to a high and low temperature testing device for testing automobile headlamp, including box and mounting mechanism, and mounting mechanism includes frame, a plurality of heavy load slide rails, a plurality of carriers, a plurality of first probe module, a plurality of second probe module and a plurality of fixed assemblies, and the frame is arranged in the inside of box, a plurality of heavy load slide rails are fixedly connected with the clamping, and the both ends of a plurality of carriers are slidably connected with corresponding heavy load slide rails respectively, a plurality of first probe module are fixedly connected with the frame, a plurality of second probe module are fixedly connected with corresponding carriers respectively and are located in the side of corresponding first probe module, and one end of heavy load slide rail is provided with a lock catch, and a plurality of fixed assemblies are arranged in the side of corresponding carrier respectively, through the setting of above -mentioned structure, the problem that the temperature range is not enough wide, the temperature change rate is not high and the detection efficiency is relatively low of the existing high and low temperature test box is solved.

The invention provides a lamp and an installation method thereof.The lamp comprises a hanging frame assembly and a lamp body assembly, the hanging frame assembly comprises a hanging frame, a pulling buckle arranged at one end of the hanging frame and a junction box arranged at the other end of the hanging frame, and a positioning part is further arranged at the position, close to the junction box, of the hanging frame; the lamp body is assembled on one side of the base plate, the wiring plug and the limiting piece are arranged on the other side of the base plate, and the limiting piece and the positioning part are oppositely arranged; the handle is used for connecting the hanger assembly and the lamp main body; wherein the hanging frame is used for being installed on an installation wall and enabling the junction box to be connected with a mains supply cable, one end of the handle is contained in the limiting piece and can rotate relative to the limiting piece, the other end of the handle is connected with the hanging frame and fixed through the pulling buckle, and the limiting piece and the positioning part are mutually clamped and fixed so that mechanical connection of the lamp body and the hanging frame assembly can be achieved. The wiring plug is matched with the wiring box in an inserted mode to achieve electrical connection of the lamp body and the hanging frame assembly, and the installation process is more time-saving, labor-saving, efficient and safe.

The invention discloses a non-pneumatic tire detection method, a non-pneumatic tire and a vehicle, and relates to the technical field of vehicles, the non-pneumatic tire is a top bearing tire, a supporting insert is arranged in a tread of the non-pneumatic tire, the supporting insert is conductive, the supporting insert is a supporting main body of the non-pneumatic tire, and the supporting main body is provided with a plurality of through holes. The non-pneumatic tire detection method comprises the following steps: arranging at least two detection positions on the tread of a non-pneumatic tire; a detection circuit is arranged, and the supporting insert is electrically connected into the detection circuit through the at least two detection positions; according to the number of the detection positions, a corresponding number of detection sub-circuits are arranged, and different detection sub-circuits correspond to different detection areas of the supporting insert; at least one sensor is arranged on the detection circuit; monitoring the resistance change of the detection area corresponding to the support insert in real time through at least one detection sub-circuit; and when the resistance of the support insert is detected to be abnormal, judging that the detection area corresponding to the support insert has cracks or fractures.

The invention provides a flexible flat cable harness, which relates to the field of cables and comprises a first wire, a second wire and a tension detection part, the first wire comprises a plurality of first flat wires arranged in parallel, a first upper insulating layer and a first lower insulating layer; the second wire comprises a plurality of second flat wires arranged in parallel, a second upper insulating layer and a second lower insulating layer; the first wire is arranged on the upper side of the second wire, or the first wire and the second wire are arranged side by side; the left end of the first wire and the left end of the second wire are connected with the same first plug, the right end of the first wire is connected with the second plug, and the right end of the second wire is connected with the third plug. The tension detection part is arranged on the first wire and / or the second wire and used for detecting the tension of the first wire and / or the second wire. The flexible flat cable harness has the advantages of being light in weight and flat, tension detection is achieved on the premise that the layout and the size of the wires are not changed, and the integration degree of the whole system is improved.

This invention discloses a transformer testing device, whose switching mechanism includes: three busbar assemblies for electrical connection to the three-phase bushing terminals of the transformer; two sliding contact assemblies, each comprising multiple slidingly engaged slider contacts spaced apart, with each busbar assembly connected and disconnected via the sliding contact assemblies; and a pushing device for driving the slider contacts of the sliding contact assemblies to move, thereby electrically connecting or disconnecting the slider contacts. Operators can quickly connect and disconnect the transformer terminals by controlling the pushing device. The device is simple in structure and easy to operate. Furthermore, when the switching mechanism is in the closed state, the contact is achieved through the contact of the slider contacts. Compared to a disconnector, the contact between the slider contacts is surface contact, which is more reliable, has a larger contact area, and eliminates the shearing force experienced during disconnection and opening of a disconnector, thus solving the problem of contact surface wear.

The invention relates to the technical field of alternating-current power distribution networks, and aims to solve the problems that in the prior art, a filter power distribution device adopts open-type equipment, a double-layer framework is needed to meet connection of double-layer buses, and an alternating-current power distribution device cannot be placed in the same layer space with the filter power distribution device, so that the overall occupied area is large. The invention provides a same-layer arrangement system for alternating-current power distribution devices and alternating-current filter power distribution devices, which comprises the alternating-current power distribution devices and the alternating-current filter power distribution devices which adopt gas insulated switchgear and are arranged on the same layer, and the alternating-current filter power distribution devices are arranged between strings of the alternating-current power distribution devices; the alternating-current filter power distribution device of a single small group is connected to a filter small group pipeline, one end of the filter small group pipeline is connected to a filter large group bus through the alternating-current filter power distribution device of the small group, the other end of the filter small group pipeline is connected with equipment in a fence through a wire outlet sleeve, and the filter large group bus and the filter small group pipeline are arranged on the same layer. And the filter large-group bus is connected with the AC power distribution device bus.

The utility model relates to the field of automobile seat, concretely relates to a vehicle seat electrical plug structure and seat, including plug unit and socket unit, plug unit includes the sheath for installing in the metal pole inside and the first connecting terminal in the sheath, socket unit includes the seat body and installs the second connecting terminal on the seat body, and the first elastic sheet for clamping is installed to the metal pole outside wall on the seat body, through the application scheme, realize user can easily pull out the metal pole of headrest from the seat thoroughly, and the electrical plug structure is automatically disconnected after pulling out, when the metal pole is inserted into the seat again, the electrical plug structure is automatically connected, solved the problem that the metal pole on the headrest cannot pull out thoroughly from the top of seat at present.

The utility model discloses an engine model circuit and an engine model with the same, and the engine model circuit comprises a logic control circuit. The voltage stabilizing circuit, the key potential input circuit, the linear speed and angle detection circuit, the magnetic pole detection circuit, the battery model circuit, the electric lamp model circuit, the working state indicating lamp circuit, the rotor marquee light bar circuit, the power transmission marquee light bar circuit and the motor control circuit are respectively connected with the logic control circuit. The engine model includes an engine model circuit. According to the engine model circuit, the differential Hall magnetic sensor is adopted to detect the rotating speed and the angle of the coil, the scheme is non-contact detection, friction loss is avoided, the service life is long, the reliability is high, and the engine model circuit has the advantages of being simple in structure, sensitive in detection and high in resolution ratio. The rotation angle, direction and speed of the coil can be measured by using one component, and measurement can be realized at any rotation angle.

The QFN frame structure of the utility model discloses includes pad, chip operation area and pin array. The edge of pad is periodic concave-convex structure. Chip operation area is located in the central region of pad, and the shape of chip operation area is square, and the length of the side length of chip operation area is greater than 3.0mm. Pin array is set up in the outer edge of pad. The QFN frame structure of the application can solve the miniaturization demand problem, through the periodic concave-convex structure of the edge of pad, not only can reduce stress concentration, alleviate delamination risk, simultaneously, under the premise of not increasing the size of package, increase the operation space of chip, this means that in the same space, can handle larger chip, greatly improve the operation efficiency, save time and resources.

The utility model discloses a stackable power supply module's magnetic shielding casing relates to power supply module technical field, including casing main part and positioning hole, casing main part includes high magnetic conductive metal layer, insulation buffer layer and shielding effectiveness enhancement layer, the outer surface of insulation buffer layer is provided with the shielding effectiveness enhancement layer, and the positioning hole is provided with the shielding effectiveness enhancement layer. A positioning column is arranged at the top of the shell body, and the positioning hole is formed in the bottom of the shell body. According to the magnetic shielding shell of the stackable power supply module, the top and the bottom of the shell main body adopt complementary concave-convex groove design, the top is provided with a convex positioning column and a groove type electrical connection interface, and the bottom is correspondingly provided with a positioning hole matched with the positioning column and a convex type electrical connection plug. The electrical connection plug of the lower power module shell body can be accurately inserted into the electrical connection interface of the upper shell body, electrical connection between the power modules is achieved, and no extra connecting wire is needed.

The utility model provides a charging pile. Relates to the technical field of charging equipment. The charging pile comprises a charging gun, a first shell, a second shell, a first circuit board located in the first shell and a second circuit board located in the second shell. A part of the plurality of power devices are positioned in the first shell and are fixed on the first circuit board, and the other part of the plurality of power devices are positioned in the second shell and are fixed on the second circuit board; the side, away from the first shell, of the second shell is used for being hung on the bearing piece. The plurality of power devices are electrically connected to form a power conversion circuit, and the charging gun is electrically connected with the output end of the power conversion circuit; the first shell is connected with the second shell, and an air duct is arranged between the first shell and the second shell; the air conditioner further comprises a fan and an air opening, the arrangement direction of the fan and the air opening is perpendicular to the arrangement direction of the first shell and the second shell, the air channel is located between the fan and the air opening, and the fan faces the air channel. The charging pile can meet the heat dissipation requirement of the charging pile with high-density layout.

The present invention discloses a method for making an X-shaped through hole in a glass substrate, and belongs to the field of making through holes in semiconductor devices. A method for making an X-shaped through hole in a glass substrate comprises: S1, making an aluminum mask in the graphic area on the front and back sides of the glass substrate, and exposing the position where the hole needs to be opened on the glass substrate; S2, setting the RF electrode power, etching time, vacuum pressure, and total flow rate of the mixed gas of the plasma etching equipment, and setting the mixing ratio of C4F8, N2, and O2 in the mixed gas; S3, heating the glass substrate by using the plasma etching equipment; S4, etching the front and back sides of the glass substrate simultaneously by using the plasma etching equipment; S5, actively recovering and treating the generated waste gas by using the plasma etching equipment. Using the plasma etching equipment to etch the front and back sides of the glass substrate simultaneously is conducive to the stability of the hole type, simplifies the process flow, improves the etching efficiency, and reduces the cost.

This utility model discloses a solder mask opening structure for surface mount components, relating to the field of printed circuit board design technology. The solder mask opening structure for surface mount components includes a printed circuit board, which comprises a solder mask layer and a metal layer. A solder mask opening is provided on the solder mask layer. The metal layer is connected to the solder mask layer, and a first pad and a second pad are provided on the side of the metal layer facing the solder mask layer. The technical solution of this utility model fully considers the characteristics of small pad spacing and tiny solder shoulder size of 01005 surface mount components. By eliminating the solder mask bridge between the first and second pads, the first and second pads are fully exposed within the solder mask opening. Furthermore, by controlling the reasonable gap between the outer walls of the first and second pads and the inner wall of the solder mask opening, the solder paste printing and soldering process is optimized, fundamentally solving common problems such as solder balls, tombstoning, and cold solder joints in the SMT soldering process of 01005 surface mount components.

The utility model discloses a waterproof connecting plug structure relates to connecting plug technical field, the utility model discloses a male plug subassembly, female plug subassembly and butt joint subassembly, male plug subassembly includes first connecting terminal, and first connecting terminal one end is installed with first locating ring, female plug subassembly includes second connecting terminal, and second connecting terminal is installed with second locating ring, and second connecting terminal surface is equipped with sealing element, butt joint subassembly includes outer thread cover and screw cap, and outer thread cover is movably installed on first connecting terminal surface, and screw cap movably installs on second connecting terminal surface, the utility model discloses the thread connection of outer spiral cover and screw cap can make the butt joint and the separation process of connecting plug structure relatively simple, compared with some waterproof performance good but the existing plug connecting structure of installation butt joint complicated, and the device can improve the work efficiency of installation and dismounting under the performance of guaranteeing the performance of strict waterproof.

The invention discloses a method for preventing wrong wiring of a wiring terminal, and the method comprises the following steps: 1), arranging a pin and a plug box which are matched with each other in shape, enabling the pin and the plug box to be respectively communicated with different cables, and achieving the electrical connection of the pin and the plug box in a manner of inserting the pin into the plug box; (2) bosses are arranged on the surfaces of the contact pins according to the shapes of the contact pins, the positions of the bosses of the contact pins are different, grooves matched with the corresponding contact pins are formed in the insertion box, only the matched contact pins and the insertion box can achieve embedding of the bosses and the grooves, the unmatched contact pins cannot be inserted into the insertion box due to the fact that the bosses and the grooves are not matched, and the insertion box cannot be damaged. Therefore, matching of a specific pin and a plug box is realized. By arranging the bosses on the surfaces of the contact pins and arranging the matched grooves in the plug box, the plug-in connection of the specific contact pins and the plug box is realized, so that the phenomenon of wrong connection of electrical circuits can be avoided, the practicability is high, the positive promotion effect on the manufacturing of electrical elements is achieved, and the plug is suitable for wide popularization and application.

The invention relates to the technical field of alternating-current power distribution networks, and aims to solve the problems that in the prior art, a filter power distribution device adopts open-type equipment, a double-layer framework is needed to meet connection of double-layer buses, and an alternating-current power distribution device cannot be stacked with the filter power distribution device, so that the overall occupied area is large. The invention provides an alternating current power distribution device and alternating current filter power distribution device layered arrangement system which comprises an alternating current power distribution device and an alternating current filter power distribution device, and both the alternating current power distribution device and the alternating current filter power distribution device adopt gas insulated switchgear. The alternating-current power distribution device and the alternating-current filter power distribution device are stacked in layers; the alternating-current filter power distribution device of a single small group is connected to a filter small group pipeline, one end of the filter small group pipeline is connected to a filter large group bus through the alternating-current filter power distribution device of the small group, and the other end of the filter small group pipeline is connected with equipment in a fence through an outgoing line sleeve. And the filter large-group bus and the filter small-group pipeline are arranged on the same layer.

This application provides a covered power distribution automation feeder terminal, including a housing, a bus circuit board, a mounting bracket, an input / output circuit board, and a power supply assembly. The housing includes a base and a cover, which together form a first accommodating cavity for accommodating functional modules. Multiple electrical connection sockets are provided on the inner wall of the base to enable electrical connection between external devices and the terminal. One side of the bus circuit board is a mating surface, and the other side is a component surface. The mating surface has electrical connection plugs that match the electrical connection sockets of the base, and the component surface integrates electronic components. The mounting bracket spans above the bus circuit board and includes a base plate and a vertical plate. The vertical plate is vertically fixed to the inner wall of the base, and the base plate extends vertically to the vertical plate, forming a stable support structure. The input / output circuit board is fixed to the mounting bracket and together with the mounting bracket, forms a second accommodating cavity. The power supply assembly is installed in the second accommodating cavity and fixed to the inner sidewall of the base plate.

The utility model discloses a detachable lithium battery module. The detachable lithium battery module comprises a box body, a module, a magnetic connection bar, a battery management system circuit board and an upper cover, the module is positioned in the box body, the module comprises a plurality of battery cells, the plurality of battery cells are linearly arranged, and positive electrodes and negative electrodes of the adjacent battery cells are sequentially alternated along the arrangement direction; a plurality of magnetic connection rows, one magnetic connection row is arranged between each group of adjacent battery cells, and the magnetic connection rows are bridged between the different-name electrodes of the adjacent battery cells; an elastic buffer is arranged on the surface of the side, facing the module, of the battery management system circuit board and abuts against the magnetic attraction connecting row. And the upper cover is detachably connected with the box body. According to the invention, electrical connection between the battery cells is realized through the magnetic connection bar, and the reliability and maintainability of connection are improved. And the elastic buffer can effectively relieve the vibration and impact of the battery cell in the working process. And the box body and the upper cover are detachable, so that the maintenance cost is reduced.

The present disclosure relates to a transformer device (100), which includes a transformer (10) including at least one phase winding (12). The phase winding (12) has coil turns around a coil axis (c). The transformer device (100) also includes a transformer box (20) having a wall (22) forming a housing, in which the transformer (10) is arranged. The housing contains an incompressible medium, in which the transformer (10) is immersed. A partition (30) is arranged in the transformer box (20), between the wall (22) of the transformer box (20) and the at least one phase winding (12) of the transformer (10). The partition (30) has an inner surface facing the transformer and an outer surface facing the wall. The partition (30) is also arranged spaced apart from the at least one phase winding (12) of the transformer (10). The transformer tank (20) has a first wall (22') adjacent to a first end of the transformer (10) and extending transversely to a first axis (z), and an opposite second wall (22") adjacent to a second end of the transformer (10) and extending transversely to the first axis (z). The partition (30) has at least one first portion (32') and at least one second portion (32") both extending transversely to the first axis (z), wherein the at least one first portion (32') is arranged between the first end of the transformer (10) and the first wall (22') of the transformer tank (22), and the at least one second portion (32") is arranged between the second end of the transformer (10) and the second wall (22") of the transformer tank (20).

The present invention relates to a panel cascade control terminal and a control method thereof, comprising: a main panel and a plurality of extension panels; a plurality of shared interfaces, which are arranged on the main panel and each extension panel, at least one of the extension panels is electrically connected to the main panel through the shared interface, and the extension panels are electrically connected end to end in sequence through the shared interface to form a cascaded chain structure; a communication module and a power supply module, which are arranged on the main panel, the power supply module supplies power to the main panel, and the main panel supplies power to the extension panels through the corresponding shared interfaces, the i-th level extension panel is configured as a communication relay module of the i+1-th level and / or the i-1-th level extension panel, and the communication relay module is used to relay data between the communication module and the extension panel, wherein i is a positive integer greater than or equal to 1 and i is less than or equal to the number of the extension panels.

The utility model discloses a novel connector capable of being quickly plugged, which belongs to the technical field of connectors and comprises a connector body, and the connector body comprises a plug shell and a socket shell. The fixing assembly comprises a fixing disc, a sliding rod, a clamping block, a reset spring and a fixing barrel, the fixing disc is provided with a sliding groove, the sliding rod is arranged in the sliding groove in a sliding mode, the clamping block is arranged at one end of the sliding rod, and the fixing barrel is provided with a first clamping hole; according to the utility model, through the arrangement of the fixing assembly, when plugging is needed, a user translates the plug shell and the socket shell towards the direction close to each other, and the two clamping blocks are close to each other; and when the clamping block moves to the first clamping hole, the clamping block is completely clamped in the first clamping hole under the resilience force of the reset spring, so that the plug shell and the socket shell are fixed, the pins and the pin holes are electrically connected, and the operation is simple and rapid.

The power module mounting substrate based on bonding of the copper clamp and the lead comprises a chip, the copper clamp and the lead, the chip is mounted on the mounting substrate, the copper clamp comprises a chip connecting part and a substrate connecting part which are integrally formed, the substrate connecting part is connected with the mounting substrate, and the chip connecting part is connected with the chip. The lead comprises a copper clamp lead, a substrate lead and a chip lead, the copper clamp lead is connected with the chip connecting part, two ends of the substrate lead are respectively bonded with the substrate connecting parts of two different copper clamps, and the chip lead is connected with the chip. The power module and the electronic equipment based on bonding of the copper clamp and the lead solve the problems that the bonding point is easy to fall off and the falling off or pseudo soldering of the bonding point cannot be found even.

The invention relates to the technical field of medical instruments, in particular to an electric anastomat control method and an electric anastomat. The control method of the electric anastomat comprises the following steps that a motor is controlled to drive a jaw assembly to squeeze tissue; in the tissue squeezing process, current working parameters of a motor are obtained; and determining the current tissue thickness according to the current working parameters. The electric anastomat is applied to the electric anastomat control method. According to the electric anastomat control method and the electric anastomat, on one hand, the current tissue thickness is obtained through the current working parameters of the motor, a measuring assembly does not need to be installed at the far end of the electric anastomat, and interference caused by frequent use to the tissue thickness detection function is reduced; operation details can be adjusted by referring to the tissue thickness in the anastomosis stage and the cutting stage, and the quality of tissue anastomosis and tissue cutting is improved.

The present invention proposes a mining hole directional measurement device, including a fixed frame, an angle encoder, a rotating unit and a power device; wherein the angle encoder is fixedly mounted on the top surface of the fixed frame; the rotating unit includes a rotating frame, which is arranged on the bottom surface, and a gyro sensor and an acceleration sensor are arranged in the rotating frame, and the rotating frame is rotatably connected to the angle encoder; the power device is fixedly arranged on the fixed frame below the rotating unit, and is used to drive the rotating unit to rotate in the vertical direction. The present invention can obtain the inclination angle of the borehole through the acceleration sensor, drive the rotating frame to rotate through the power device, and drive the gyro sensor to rotate, measure and record the values ​​at certain specific angles, and accurately obtain the azimuth angle data of the rotation starting point position through the angle encoder. The measuring device of the present invention has a simple structure and a light volume, and can quickly realize the measurement of the azimuth angle and inclination angle of the borehole.

The invention discloses an oil tank measuring thermometer which comprises a thermometer body, an operation panel, a waterproof hose, a touch display screen, an internal cavity, a control mother board, a module daughter board, a temperature measuring sensor, an insertion hole, an opening and closing structure, a positioning and locking child component and a positioning and locking mother component. Compared with the prior art, the oil tank thermometer has the following advantages and effects that the thermometer body is provided with a plurality of temperature measurement sensors, and the temperature measurement sensors are welded on the detachable module daughter board, so that layered temperature detection of different heights in an oil tank can be realized, and the detachability of the module daughter board enables maintenance and replacement work to be remarkably simplified; the operation cost can be greatly reduced; through full utilization of the module structure, the flexibility, reliability and economical efficiency of the oil tank temperature monitoring system are effectively improved, and a new solution is provided for liquid storage and management in petroleum and chemical industries.