Battery cylinder for logging instrument

Abstract

The utility model relates to the field of logging instruments, in particular to a battery cylinder for a logging instrument, which comprises a battery compartment, the battery compartment comprises a high-temperature-resistant insulating cylinder body with openings on two opposite sides, a connecting seat is mounted at one opening of the cylinder body, and a battery holder is detachably mounted at the other opening of the cylinder body. A connector used for being electrically connected with other instruments is detachably installed at the end, away from the battery holder, of the connecting seat, a cavity formed among the barrel, the battery holder and the connector is filled with pouring sealant, and a wave spring, an insulating partition plate and a battery nipple are sequentially arranged in the barrel from the end where the connecting seat is located to the end where the battery holder is located. The problem that the power supply function of an existing battery cylinder is not reliable is solved, the power supply function of the battery cylinder for the logging instrument is reliable, and the power supply requirement of the logging instrument can be met.

Description

Technical Field

[0001] The utility model relates to the field of well logging instruments, in particular to a battery cartridge for well logging instruments. Background Art

[0002] Existing logging instruments are mainly divided into two categories: cable logging instruments and storage logging instruments. Cable logging instruments can transmit signals in a timely manner, while storage logging instruments first store information in a storage unit and then interpret the information in the storage unit after the instrument returns to the ground.

[0003] When storage logging instruments are working underground, they need to use battery cartridges to power them. The normal power supply of the battery cartridges plays a decisive role in the success of the logging mission. At present, the battery cartridges used in domestic oil fields are mainly disposable lithium battery cartridges. This type of battery cartridge has a simple structure, with multiple batteries inside. It is connected to other instruments through two wires extending from the batteries. However, under vibration conditions, such as bumps during transportation or collisions with the well wall underground, the wires are easily affected, causing the battery to short-circuit, causing the built-in fuse in the battery to be damaged, thereby causing the battery cartridge to malfunction. Welding the fuse needs to be performed by professionals, and logging operators cannot repair it on site, which is very troublesome when problems arise.

[0004] Therefore, the existing battery cartridge has the problem of relatively unreliable power supply function, and is prone to power supply failure during well logging work. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the above-mentioned prior art and provide a battery cartridge for a well logging instrument with a relatively reliable power supply function.

[0006] To solve the above technical problems, the utility model provides a battery cartridge for a well logging instrument, comprising a battery compartment, the battery compartment comprising a high-temperature resistant insulating cylindrical body with openings on two opposite sides, a connecting seat mounted at one opening of the cylindrical body, a battery holder detachably mounted at the other opening of the cylindrical body, a connector for electrically connecting to other instruments detachably mounted at one end of the connecting seat away from the battery holder, and central axes of the cylindrical body, the battery holder, the connecting seat, and the connector all lying on the same straight line;

[0007] The cylindrical body is provided with a wave spring, an insulating partition, and a battery short section in sequence from one end where the connecting seat is located to the other end where the battery seat is located. A terminal through-hole is provided at the center point of the insulating partition. The positive electrode of the battery short section is electrically connected to the connector. The connecting seat is provided with a through-hole, the central axis of which coincides with the central axis of the connecting seat. The negative electrode of the battery short section is electrically connected to the battery seat.

[0008] The cylinder and the through hole are also filled with potting glue, and the battery seat is provided with at least one glue inlet hole for the potting glue to enter and at least one second wire hole.

[0009] As a further improvement of the present invention, the connecting seat is made of hard aluminum.

[0010] As a further improvement of the present invention, the cylinder is made of glass fiber reinforced plastics.

[0011] As a further improvement of the present invention, the connecting seat and the cylinder are integrally wound and formed.

[0012] As a further improvement of the present invention, the connector includes a DC female connector and a mounting base sleeved outside the DC female connector;

[0013] The mounting base includes a circular ring, which is detachably connected to the connecting base; a tube body is vertically provided on the side of the circular ring away from the connecting base, and the DC female connector is plugged into the tube body; the central axes of the circular ring, the tube body and the DC female connector are all located on the same straight line;

[0014] A rotary cover for limiting the position of the DC female connector is detachably mounted on one end of the mounting base away from the connecting base, and a DC male connector through hole is provided on the rotary cover for the DC male connector to pass through.

[0015] As a further improvement of the present invention, a limiting tube body is vertically provided on one surface of the circular ring sheet close to the connecting seat, and the limiting tube body is inserted into the through hole (501);

[0016] The center axis of the limiting tube body and the tube body are located on the same straight line.

[0017] As a further improvement of the present invention, a positioning boss is vertically provided on one side of the DC female connector close to the connecting seat, and a positioning groove is provided in the tube body, which matches the shape and size of the positioning boss and is used to limit the movement of the positioning boss.

[0018] As a further improvement of the present invention, the connector includes a first circular plate and a second circular plate arranged in parallel, a first wire hole is opened at the center point of the first circular plate and the second circular plate, and the first circular plate and the second circular plate are fixedly connected by an H-shaped plate for mounting functional components, and the H-shaped plate is perpendicular to the first circular plate;

[0019] The second disc is perpendicular to the central axis of the cylinder, and the second disc is detachably connected to an end of the connecting seat away from the battery seat;

[0020] A crescent hole is provided at the edge of the insulating partition for the signal line to pass through.

[0021] As a further improvement of the present invention, the functional component is a power management functional component, a storage functional component, or an integrated functional component that integrates the functions of multiple functional components.

[0022] The present invention provides the following beneficial effects: The battery cartridge for well logging instruments provides a reliable power supply that meets the power supply requirements of well logging instruments. The cavity formed between the barrel, battery holder, and connector of the battery cartridge is filled with potting compound. This potting compound secures the wave spring, insulating partition, battery nipple, wires, and signal lines, reducing the likelihood of the battery cartridge shorting under conditions such as vibration. The wave spring can be increased in size according to the number of batteries. The wave spring requires a smaller effective distance in compact environments, resulting in elastic performance that meets operational requirements. The squeezing action of the wave spring maintains a tight connection between the battery nipple, battery holder, and connector, reducing the likelihood of loose connections. The insulating partition acts as a barrier between the spring and the battery nipple, enhancing the safety of the battery cartridge. This structure reduces the probability of power failure in the battery cartridge, thereby ensuring a more reliable power supply. Furthermore, the battery cartridge features a detachable connector, allowing the cartridge to adapt to the varying interface specifications required by different instrument manufacturers. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the battery compartment in the present invention when the cylinder is in a perspective state;

[0024] Figure 2 This is an exploded view of the battery compartment in the present invention with the cylinder hidden;

[0025] Figure 3 This is a perspective diagram of the overall structure of the pressure-bearing outer tube of the present invention;

[0026] Figure 4 This is a schematic diagram of the overall structure of the battery holder in the utility model from the main left angle;

[0027] Figure 5 This is a schematic diagram of the overall structure of the battery holder in the present invention from the rear left angle;

[0028] Figure 6 This is a perspective front view of the battery holder in the utility model;

[0029] Figure 7 This is a schematic diagram of the overall structure of Example 1 of the present utility model;

[0030] Figure 8 This is an assembly diagram of the mounting base and the cross countersunk screw in the utility model;

[0031] Figure 9This is a schematic diagram of the overall structure of the mounting base in the utility model;

[0032] Figure 10 This is a schematic diagram of the overall structure of the mounting base in the utility model from another angle

[0033] Figure 11 This is a schematic diagram of the overall structure of the DC female connector in the present utility model;

[0034] Figure 12 This is a perspective diagram of the overall structure of the DC female connector in the present invention;

[0035] Figure 13 This is a perspective side view of the DC female connector in the present invention;

[0036] Figure 14 This is a schematic diagram of the overall structure of the rotary cover in the present invention from a rearward perspective;

[0037] Figure 15 This is a schematic diagram of the overall structure of Example 2 of the present utility model;

[0038] The names of the components corresponding to the marks in the above drawings are: 1. Pressure-bearing outer tube; 2. Battery compartment;

[0039] 3. Connector; 311. Mounting seat; 3111. Circular ring; 3112. Tube; 3113. Positioning tube; 3114. Positioning groove; 312. DC female connector; 3121. Positioning boss; 3122. Contact body; 3123. Circular ridge; 313. Screw cap; 321. First circular disc; 322. H-shaped plate; 323. Second circular disc; 324. First wire hole;

[0040] 4. Cross countersunk screws;

[0041] 5. Connecting seat; 501. Through hole;

[0042] 6. Wave spring;

[0043] 7. Insulating partition; 701. Terminal through hole; 702. Crescent hole;

[0044] 8. Second battery; 9. Cylinder;

[0045] 10. First battery; 1001. Terminal;

[0046] 13. Battery holder; 1301. Glue inlet hole; 1302. Boss; 1303. Screw hole; 1304. Second wire hole; 1305. Blind hole; 1306. Top screw hole. DETAILED DESCRIPTION

[0047] The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings.

[0048] like Figure 1 、 Figure 2 、 Figure 7 As shown, the battery cartridge for well logging instruments provided by the present invention includes a battery compartment 2, which comprises a high-temperature-resistant, insulated cylindrical body 9 with openings on opposite sides. The cylindrical body 9 is made of fiberglass reinforced plastic. A connector 5 is mounted at one opening of the cylindrical body 9. The connector 5 comprises a hexagonal body. A connector tube is perpendicularly mounted on the side of the hexagonal body proximal to the cylindrical body 9. The outer surface of the connector tube proximal to the cylindrical body 9 is threaded, and a connector ring is fixedly mounted on the outer end of the connector tube proximal to the hexagonal body. A through-hole 501 is defined in the hexagonal body of the connector 5. The through-hole 501 communicates with the cavity of the connector tube, and the central axis of the through-hole 501 coincides with the central axis of the connector 5. The connector 5 is made of duralumin. The connector 5 and the cylindrical body 9 are integrally wound. The winding process uses fiber-reinforced material filaments. After heating and dehumidification, the fiber-reinforced material filaments are immersed in a mixed rubber compound and then drawn out for winding. The mixed rubber compound includes phenolic epoxy resin, a cycloaliphatic epoxy resin, a curing agent, a toughening agent, and a filler. When winding into one piece, winding starts from the threaded part on the connecting seat tube body. A battery holder 13 is detachably mounted at another opening of the barrel 9. The side wall of the battery holder 13 is provided with at least two screw holes 1303, three of which are shown in the figure. The barrel 9 is also provided with connecting holes at positions corresponding to the screw holes 1303. The barrel 9 and the battery holder 13 are connected to the cross countersunk screw 4 through the connecting holes, screw holes 1303. A connector 3 for electrically connecting to other instruments is detachably mounted at one end of the connecting seat 5 away from the battery holder 13. The central axes of the barrel 9, the battery holder 13, the connecting seat 5 and the connector 3 are all located on the same straight line. In actual use, the entire battery barrel can be placed in the pressure-bearing outer tube 1, as shown in FIG. Figure 3 As shown, the pressure-bearing outer tube 1 is a tube with openings on opposite sides. It contains a mounting cavity for receiving the battery cartridge, the shape of which matches the outer shape of the battery cartridge. Made of a non-metallic insulating material resistant to high temperatures and high pressures, the pressure-bearing outer tube 1 is not easily bent. Even in the event of an impact, it will not create sharp corners that could pierce the battery cartridge and cause a safety hazard, effectively protecting the cartridge.

[0049] like Figure 2 、 Figure 4As shown, the barrel 9 is provided with a wave spring 6, an insulating partition 7, and a battery short section in sequence from the end where the connecting seat 5 is located to the end where the battery holder 13 is located. The barrel 9 and the through hole 501 are also filled with potting glue, which is a polyimide glue. The wave spring 6, insulating partition 7, battery short section, wires and signal lines are all located in the potting glue, and the potting glue fills every gap in the barrel 9 and the through hole 501. The battery holder 13 has a cylindrical structure, and a boss 1302 is provided at the center of the side of the battery holder 13 facing the battery short section. The battery holder 13 is provided with at least one glue inlet hole 1301 for entering the potting glue, which passes through the upper bottom surface and the lower bottom surface of the battery holder 13. There are six of them in the figure. In actual use, the potting compound is only applied after the entire battery canister is assembled. The potting compound secures the components in the cavity, preventing the connection between the components from changing due to collisions with the battery canister, which could cause malfunctions. The potting compound also resists shock and vibration, ensuring stable voltage fluctuations in the battery section during high discharge. This minimizes expansion of the entire battery section under high temperature conditions, preventing battery extrusion and potential safety incidents caused by expansion of the section. The wave spring 6 is a single-layer wave spring or a series-connected wave spring (i.e., a top-to-top wave spring). The figure shows a single-layer wave spring. A crescent hole 702 is provided at the edge of the insulating partition 7 for the signal line to pass through. The diameter of the insulating partition 7 is larger than that of the battery section, providing support for the wave spring.

[0050] like Figure 2 、 Figure 4 、 Figure 5As shown, the battery short section includes a first battery 10 and several second batteries 8 connected end to end from one end where the connecting seat 5 is located to the end where the battery seat 13 is located. The first battery 10 and the second battery 8 are both high-temperature lithium primary batteries and can be customized according to needs. In actual use, after installing the wave spring 6 and the insulating partition 7, the battery short section is installed, and then the battery seat 13 is installed. At this time, the wave spring 6 is in a compressed state. The wave spring 6 can ensure that the first battery 10 and the several second batteries 8 are in close contact without loose contact. The positive electrode of the first battery 10 is a terminal 1001 that can be electrically connected to the connector 3 through a wire. A terminal through hole 701 is provided at the center point of the insulating partition 7. The terminal 1001 is in the shape of a round hole with a straight ear. The shape of the terminal 1001 can be customized according to needs. The positive electrode of the battery short section (i.e., terminal 1001) is electrically connected to the connector 3 through a wire. A through hole 501 for allowing the wire to pass through is provided on the connecting seat 5. The negative electrode of the battery section (the negative electrode of the first battery 10 or the negative electrode of the second battery 8 near the battery holder 13) is electrically connected to the battery holder 13 via a wire. When the number of second batteries 8 is zero, the negative electrode of the battery section is the negative electrode of the first battery 10. When the number of second batteries 8 is not zero, the negative electrode of the battery section is the negative electrode of the second battery 8 near the battery holder 13. A blind hole 1305 for mounting the negative electrode wire of the battery section is defined on the side of the battery holder 13 near the connection holder 5. A jackscrew hole 1306 perpendicular to the blind hole 1305 is defined on the side wall of the battery holder 13. The blind hole 1305 is connected to the jackscrew hole 1306. A jackscrew is disposed in the jackscrew hole 1306. The end of the jackscrew near the boss 1302 abuts against the wire in the blind hole 1305, pressing the wire end. The wire is then secured in the blind hole 1305 through the cooperation of the blind hole 1305, the jackscrew hole 1306, and the jackscrew thread. The battery holder 13 also has at least one second cable hole 1304 (one shown) for signal wires to pass through. The central axis of this second cable hole 1304 is parallel to the central axis of the battery holder 13. Signal wires are used to transmit signals between different devices. In actual use, after inserting the signal wires through and connecting them to the second cable hole 1304, it is necessary to first seal this second cable hole 1304 with potting compound to prevent the potting compound from leaking out of this hole 1304 when the battery canister is subsequently filled with potting compound.

[0051] According to the different structures of the joint 3, Example 1 and Example 2 are divided.

[0052] [Example 1]

[0053] like Figure 7As shown, the connector 3 includes a DC female connector 312 and a mounting base 311 that fits over the DC female connector 312. A removable screw cap 313 is attached to the end of the mounting base 311 away from the connector 5, which is used to position the DC female connector 312. The screw cap 313 is threadedly connected to the tube of the mounting base 311 and has a DC male connector hole formed in the screw cap 313 for passing the DC male connector. In actual use, the DC female connector 312, mounting base 311, and battery compartment 2 are connected, then installed into the pressure-bearing outer tube 1, positioned in the desired position, and then the screw cap 313 is replaced.

[0054] like Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 As shown, the mounting base 311 includes a circular ring 3111, which is removably connected to the connecting base 5 via a cross-head countersunk screw 4. A tube 3112 is perpendicularly disposed on the surface of the circular ring 3111 away from the connecting base 5, and the DC female connector 312 is inserted into the tube 3112. A positioning boss 3121 is perpendicularly disposed on the surface of the DC female connector 312 near the connecting base 5. A positioning groove 3114 is provided within the tube 3112, matching the shape and size of the positioning boss 3121 to limit the movement of the positioning boss 3121. A limit tube 3113 is perpendicularly disposed on the surface of the circular ring 3111 near the connecting base 5. The limit tube 3113 is inserted into the through hole 501. The outer diameter of the limit tube 3113 matches the inner diameter of the through hole 501. The central axes of the circular ring 3111, the tube 3112, the limit tube 3113, and the DC female connector 312 are all aligned.

[0055] like Figure 6 、 Figure 12 、 Figure 13 、 Figure 14As shown, the DC female connector 312 has a cylindrical structure. A wire connector and a signal line connector are vertically installed on the side of the DC female connector 312 close to the cylinder 9. The wire connector is electrically connected to the terminal 1001 of the battery short section through a wire. The signal line connector is electrically connected to the signal line entering the battery compartment 2 from the second wire hole 1304. The signal line passes through the crescent hole 702, the hollow part of the wave spring 6, the connecting seat 5, the limiting tube body 3113, and the circular ring piece 3111 in the cylinder 9 in sequence. In actual use, the signal line can be connected to the signal line connector first, and then the connector can be installed. The signal line passes through the inside of the battery cylinder and is protected by the battery cylinder, which can effectively reduce the probability of the signal line being damaged. A groove for inserting the DC male connector is provided on the side of the DC female connector 312 away from the barrel 9. A contact body 3122 is provided at the center of the bottom of the groove. The middle section of the contact body is a spindle-shaped structure. Two annular ridges 3123 are provided on the inner wall of the groove. The annular ridges 3123 are in close contact with the outer surface of the DC male connector, and the contact body 3122 is in close contact with the inner surface of the DC male connector.

[0056] [Example 2]

[0057] like Figure 6 、 Figure 15 As shown, the connector 3 includes a first circular disc 321 and a second circular disc 323 arranged in parallel. A first wire hole 324 is formed at the center point of each of the first and second circular discs 321, 323. The first and second circular discs 321, 323 are fixedly connected by an H-shaped plate 322 for mounting functional components. The H-shaped plate 322 is perpendicular to the first circular disc 321. The second circular disc 323 is perpendicular to the central axis of the cylinder 9 and is detachably connected to the end of the connecting base 5 away from the battery holder 13 by a cross countersunk screw 4.

[0058] The functional component is a power management component, a storage component, or an integrated functional component integrating the functions of multiple functional components. Terminal 1001 is electrically connected to the functional component mounted on H-shaped plate 322 via a wire. This electrical connection is achieved through plug-in connection. The arrangement of the functional component allows for the multifunctional expansion of the battery cartridge, enabling the cartridge to perform control, battery short protection, and other functions in addition to power supply. The signal line, after passing through the second wire hole 1304, passes through the crescent hole 702 in the cartridge body 9, the hollow portion of the wave spring 6, the connector 5, and the first wire hole 324 of the second disc 323 to electrically connect to the functional component. This electrical connection is also achieved through plug-in connection, protecting the signal line. After the battery cartridge is used or if a malfunction occurs, the connection between connector 3, terminal 1001, and the signal line can be disconnected, allowing the functional component to be recycled.

[0059] It should be noted that the present invention is not limited to the specific structures shown in the drawings in the above embodiments, and various changes can be made thereto within the scope of knowledge possessed by ordinary technicians in this field.

Claims

1. A battery cartridge for a well logging instrument, characterized in that: The battery compartment (2) comprises a high-temperature resistant insulating cylinder (9) with openings on two opposite sides, a connecting seat (5) is installed at one opening of the cylinder (9), a battery seat (13) is detachably installed at the other opening of the cylinder (9), a connector (3) for electrically connecting to other instruments is detachably installed at one end of the connecting seat (5) away from the battery seat (13), and central axes of the cylinder (9), the battery seat (13), the connecting seat (5) and the connector (3) are all located on the same straight line; The cylindrical body (9) is provided with a wave spring (6), an insulating partition (7), and a battery short section in sequence from one end where the connecting seat (5) is located to the other end where the battery seat (13) is located; a terminal through hole (701) is provided at the center point of the insulating partition (7); the positive electrode of the battery short section is electrically connected to the connector (3); a through hole (501) is provided on the connecting seat (5); the central axis of the through hole (501) coincides with the central axis of the connecting seat (5); and the negative electrode of the battery short section is electrically connected to the battery seat (13); The cylinder (9) and the through hole (501) are also filled with potting glue, and the battery seat (13) is provided with at least one glue inlet hole (1301) for the potting glue to enter and at least one second wire hole (1304).

2. A battery cartridge for a well logging instrument according to claim 1, characterized in that: The battery short section comprises a first battery (10) and a plurality of second batteries (8) connected end to end from one end where the connection seat (5) is located to one end where the battery seat (13) is located; The positive electrode of the first battery (10) is a terminal (1001) that can be electrically connected to the connector (3) through a wire. The terminal (1001) is in the shape of a round hole with a straight ear. The terminal (1001) is electrically connected to the connector (3). The negative electrode of the first battery (10) or the negative electrode of the second battery (8) close to the battery seat (13) is electrically connected to the battery seat (13).

3. The battery cartridge for a well logging instrument according to claim 1, characterized in that: The connecting seat (5) is made of hard aluminum.

4. A battery cartridge for a well logging instrument according to any one of claims 1 to 3, characterized in that: The cylinder (9) is made of glass fiber reinforced plastic.

5. A battery cartridge for a well logging instrument according to any one of claims 1 to 3, characterized in that: The connecting seat (5) and the cylinder (9) are integrally wound and formed.

6. A battery cartridge for a well logging instrument according to any one of claims 1 to 3, characterized in that: The connector (3) comprises a DC female connector (312) and a mounting base (311) sleeved outside the DC female connector (312); The mounting seat (311) comprises a circular ring (3111), and the circular ring (3111) is detachably connected to the connecting seat (5); a tube body (3112) is vertically provided on a surface of the circular ring (3111) away from the connecting seat (5), and the DC female connector (312) is plugged into the tube body (3112); the central axes of the circular ring (3111), the tube body (3112) and the DC female connector (312) are all located on the same straight line; A rotary cover (313) for limiting the position of the DC female connector (312) is detachably mounted on the outer side of the mounting seat (311) away from the connecting seat (5), and a DC male connector through hole for the DC male connector to pass through is provided on the rotary cover (313).

7. A battery cartridge for a well logging instrument according to claim 6, characterized in that: A limiting tube body (3113) is vertically provided on one surface of the annular piece (3111) close to the connecting seat (5), and the limiting tube body (3113) is inserted into the through hole (501); The central axes of the limiting tube body (3113) and the tube body (3112) are located on the same straight line.

8. The battery cartridge for a well logging instrument according to claim 6, characterized in that: A positioning boss (3121) is vertically provided on a surface of the DC female connector (312) close to the connecting seat (5), and a positioning groove (3114) is provided in the tube body (3112) and has a shape and size matching that of the positioning boss (3121) for limiting the movement of the positioning boss (3121).

9. A battery cartridge for a well logging instrument according to any one of claims 1 to 3, characterized in that: The joint (3) comprises a first circular piece (321) and a second circular piece (323) arranged in parallel, a first wire hole (324) is provided at the center point of each of the first circular piece (321) and the second circular piece (323), and the first circular piece (321) and the second circular piece (323) are fixedly connected via an H-shaped plate (322) for mounting functional components, wherein the H-shaped plate (322) is perpendicular to the first circular piece (321); The second disc (323) is perpendicular to the central axis of the cylinder (9), and the second disc (323) is detachably connected to an end of the connecting seat (5) away from the battery seat (13); A crescent hole (702) for the signal line to pass through is provided at the edge of the insulating partition (7).

Images