A thermal battery assembly positioning device

Abstract

The present invention discloses a thermal battery assembly positioning device, specifically relating to the technical field of battery manufacturing, which includes an assembly shell, a positioning frame, a linkage screw rod, and a synchronous horizontal inlay assembly component; wherein the synchronous horizontal inlay assembly component includes a linkage sleeve block, a pressure groove strip, two hinge shafts, two socket rods, a push rod, a horizontal positioning strip, and a thermal battery pack. The present invention has the advantage that through the synchronous horizontal inlay assembly component, multiple horizontal positioning strips can synchronously perform horizontal inlay assembly positioning on multiple thermal battery packs, enabling synchronous inlay assembly positioning of multiple thermal battery packs, and greatly improving the manufacturing assembly positioning efficiency of thermal batteries, thus solving the problem that after installation, bolt installation positioning and tightening need to be carried out for each battery pack one by one. This results in difficulty in achieving synchronous inlay assembly positioning of multiple thermal battery packs during the manufacturing assembly positioning of thermal batteries, leading to low assembly positioning efficiency during the manufacturing process of thermal batteries.

Description

Technical Field

[0001] The present invention relates to the technical field of battery manufacturing, and more specifically, to a thermal battery assembly positioning device. Background Art

[0002] The thermal battery manufacturing assembly positioning device is of great use in the thermal battery manufacturing process. Its main use is reflected in improving the assembly accuracy. The positioning device can ensure the position accuracy of the thermal battery during the assembly process, thereby avoiding performance problems caused by assembly errors. Through precise positioning, the relative position relationship between the internal components of the thermal battery can be stably ensured, guaranteeing the overall performance and stability of the battery.

[0003] In the existing publicly disclosed literature, the patent with the patent publication number CN115172848A discloses a workpiece assembly positioning device for battery production. The base assembly of this device can limit and fix battery bottom shells of different specifications. At the same time, the first feeding device, the second feeding device and the base assembly cooperate to achieve the directional continuous transmission of the battery bottom shell. Then, in cooperation with the cover accommodating device, the automatic assembly connection of the battery shell is completed, which is time-saving and labor-saving, and further improves the assembly efficiency of the battery shell. However, this technology still has the following defects.

[0004] During the manufacturing process of the thermal battery, multiple battery packs of the thermal battery need to be installed inside the shell, and then assembled and positioned according to the specified positions. After installation, bolt installation positioning and tightening need to be carried out for each battery pack one by one. This results in difficulty in achieving synchronous inlay assembly positioning for multiple thermal battery packs during the manufacturing and assembly of the thermal battery, leading to low assembly positioning efficiency during the manufacturing process of the thermal battery. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solution: a thermal battery assembly positioning device, including an assembly shell, a positioning frame and a linkage screw. The positioning frame is fixed at the bottom end of the inner wall of the assembly shell, the linkage screw is rotatably connected to the inner wall of the positioning frame, and a synchronous horizontal inlay assembly component is arranged on the outer wall of the linkage screw;

[0006] The synchronous horizontal inlay assembly component includes a linkage sleeve block threadedly connected to the outer wall of the linkage screw. Both sides of the linkage sleeve block are fixedly connected with pressure groove strips. Two hinge shafts are fixedly connected to the inner wall of each pressure groove strip, and two socket rods are rotatably connected to the outer wall of the hinge shafts;

[0007] A push rod is rotatably connected to the inner wall of the socket rod at a position far from the hinge shaft. A horizontal positioning strip is installed at one end of the push rod, and the horizontal positioning strip is fixedly connected to the push rod. A thermal battery pack is arranged on one side of each horizontal positioning strip.

[0008] Preferably, the outer wall of the linkage sleeve block is slidably connected to the positioning frame, and the outer wall of the linkage sleeve block and the inner wall of the positioning frame are both smooth surfaces. The two pressure groove bars are symmetrically arranged with respect to the linkage sleeve block. The transverse positioning bar is slidably connected to the assembly shell, and the thermal battery pack is inserted into the assembly shell; there is a gap between adjacent two of the transverse positioning bars. One end of the transverse positioning bar is provided with a sliding bar, and the sliding bar is fixedly connected to the assembly shell; the sliding bar is slidably connected to the transverse positioning bar.

[0009] When the present technology is in use, the linkage screw rotates on the inner wall of the positioning frame, so that the linkage sleeve block slides down along the inner wall of the positioning frame, and the linkage sleeve block drives the two pressure groove bars to move downward synchronously, and the hinge shaft drives the tops of the two socket rods to move downward synchronously. The push rod drives the transverse positioning bar to move backward, the two rear transverse positioning bars move backward synchronously, the two front transverse positioning bars can move forward synchronously, the two rear transverse positioning bars are respectively inserted into the positioning transverse grooves inside the two rear thermal battery packs, and the two front transverse positioning bars are respectively inserted into the positioning transverse grooves inside the two front thermal battery packs.

[0010] Preferably, linkage pressing plates are arranged on both sides of the outer wall of the positioning frame, and the two linkage pressing plates are fixedly connected to the linkage sleeve block. A synchronous longitudinal embedded assembly component is arranged on the inner wall of the linkage pressing plate; the synchronous longitudinal embedded assembly component includes a pressure column fixed to the inner wall of the linkage pressing plate. Two socket pressing rods are rotatably connected to the outer wall of the pressure column. A push shaft is slidably connected to the inner wall of the socket pressing rod and away from the position of the pressure column. One end of each push shaft is fixedly connected to a longitudinal positioning bar. A longitudinal groove is formed on one side of the longitudinal positioning bar; the longitudinal positioning bar is inserted into the thermal battery pack to which the longitudinal groove belongs, and one end of the longitudinal positioning bar is slidably connected to a sliding bar, and the sliding bar is fixedly connected to the assembly shell. The two linkage pressing plates are symmetrically arranged with respect to the linkage sleeve block; the center point of the pressure column is higher than the center point of the push shaft; the vertical cross-sectional shapes of the pressure column and the push shaft are both circular. The outer wall of the sliding bar is a smooth surface, and the sliding bar is used to guide the longitudinal positioning bar.

[0011] When the present technology is in use, when the linkage sleeve block moves downward, it will drive the two linkage pressing plates to move downward synchronously. The pressure column drives the tops of the two socket pressing rods to move downward synchronously. The push shaft drives the longitudinal positioning bar to move leftward. The two left longitudinal positioning bars move leftward synchronously, the two right longitudinal positioning bars move rightward synchronously. The two left longitudinal positioning bars are respectively inserted into the two left longitudinal grooves, and the two right longitudinal positioning bars are respectively inserted into the two right longitudinal grooves. Multiple longitudinal positioning bars can synchronously perform longitudinal embedded assembly positioning on multiple thermal battery packs.

[0012] Preferably, a rotating cap is fixedly connected to the top end of the linkage screw. The rotating cap is rotatably connected to the positioning frame, and a docking component is provided at the top end of the rotating cap. The docking component includes a docking hole, a limiting ring, a docking groove, an insertion ring, a sealing cover, and a positioning post. The docking hole is opened at the top end of the rotating cap. The limiting ring is located outside the rotating cap, and the limiting ring is fixedly connected to the positioning frame. The docking groove is opened on the inner wall of the limiting ring. The insertion ring is located above the limiting ring. The sealing cover is fixedly located on the upper surface of the insertion ring, and the positioning post is located inside the insertion ring. The positioning post is fixedly connected to the sealing cover. The docking hole and the positioning post are movably inserted into each other, and the cross-sectional area of the positioning post is smaller than the cross-sectional area of the docking hole.

[0013] The insertion ring and the limiting ring where the docking groove is located are movably inserted into each other, and the cross-sectional shape of the insertion ring is circular.

[0014] When the present technology is in use, encapsulating glue is injected into the inner wall of the limiting ring and into the inner wall of the docking groove. The sealing cover is moved downward, and the sealing cover drives the positioning post to be inserted into the docking hole for encapsulation bonding. The lower surface of the sealing cover presses on the upper surface of the limiting ring, so that the rotating cap can be encapsulated and fixed. It can quickly perform inlaid assembly positioning on multiple thermal battery packs, and can also provide a firm force for multiple thermal battery packs.

[0015] The technical effects and advantages of the present invention:

[0016] 1. Through the synchronous horizontal inlaid assembly component of the present invention, the rotating cap drives the linkage screw to rotate. The linkage screw drives the linkage sleeve block to move downward under the action of the thread driving force. The linkage sleeve block drives the two pressure groove strips to move downward synchronously. The tops of the two socket rods move downward synchronously. The two rear horizontal positioning strips are respectively inserted into the positioning horizontal grooves inside the two rear thermal battery packs, and the two front horizontal positioning strips are respectively inserted into the positioning horizontal grooves inside the two front thermal battery packs. Multiple horizontal positioning strips can synchronously perform horizontal inlaid assembly positioning on multiple thermal battery packs, and can achieve synchronous inlaid assembly positioning on multiple thermal battery packs, greatly improving the manufacturing and assembly positioning efficiency of thermal batteries.

[0017] 2. The present invention adopts a synchronous vertical inlaid assembly component. When the linkage sleeve block moves downward, it will drive the two linkage pressure plates to move downward synchronously. The linkage pressure plates drive the pressure posts to move downward. The two left vertical positioning strips move leftward synchronously, and the two right vertical positioning strips move rightward synchronously. The two left vertical positioning strips are respectively inserted into the two left vertical grooves, and the two right vertical positioning strips are respectively inserted into the two right vertical grooves. Multiple vertical positioning strips can synchronously perform vertical inlaid assembly positioning on multiple thermal battery packs, greatly improving the manufacturing and assembly positioning efficiency of thermal batteries.

[0018] 3. The present invention utilizes a docking component to encapsulate glue into the inner wall of the glue injection limiting ring, into the inner wall of the docking groove, and also into the interior of the docking hole, thereby enabling the encapsulation and fixation of the rotating cap. This prevents the linkage screw from loosening during subsequent rotation. While quickly performing the inlay assembly positioning of multiple thermal battery packs, it can also provide a firm force to the multiple thermal battery packs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a schematic diagram of the overall structure of the thermal battery assembly positioning device of the present invention.

[0020] Figure 2 FIG. is a schematic diagram of the vertical cross-sectional structure of the thermal battery assembly positioning device of the present invention.

[0021] Figure 3 FIG. is a schematic diagram of a partial cross-sectional cut at the connection between the assembly shell and the positioning frame of the present invention.

[0022] Figure 4 FIG. is a schematic diagram of a partial cross-sectional cut at the connection between the sliding bar and the assembly shell of the present invention.

[0023] Figure 5 FIG. is a schematic diagram of the vertical cross-sectional structure at the connection between the assembly shell and the positioning frame of the present invention.

[0024] Figure 6 FIG. is a schematic diagram of a partial cross-sectional cut at the connection between the linkage pressure plate and the linkage sleeve block of the present invention.

[0025] Figure 7 FIG. is a schematic diagram of a partial cut at the connection between the linkage pressure plate and the pressure column of the present invention.

[0026] Figure 8 For the present invention Figure 5 Enlarged schematic diagram of part A.

[0027] Figure 9 FIG. is a schematic diagram of a partial bottom view at the connection between the positioning column and the encapsulation cover of the present invention.

[0028] Reference numerals are: 1, assembly shell; 2, positioning frame; 3, linkage screw; 4, linkage sleeve block; 5, pressure groove bar; 6, hinge shaft; 7, socket rod; 8, push rod; 9, horizontal positioning bar; 10, thermal battery pack; 11, positioning horizontal groove; 12, sliding bar; 13, linkage pressure plate; 14, pressure column; 15, socket pressure rod; 16, push shaft; 17, longitudinal positioning bar; 18, longitudinal groove; 19, sliding bar; 20, rotating cap; 21, docking hole; 22, limiting ring; 23, docking groove; 24, insertion ring; 25, encapsulation cover; 26, positioning column. DETAILED DESCRIPTION OF THE INVENTION

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] As shown in the attached Figure 1 -attached Figure 9 figure, there is a thermal battery assembly positioning device. A synchronous horizontal inlaid assembly component is provided on the thermal battery assembly positioning device. The setting of the synchronous horizontal inlaid assembly component can realize synchronous inlaid assembly positioning of multiple thermal battery groups, greatly improving the manufacturing and assembly positioning efficiency of thermal batteries. The specific structure of the synchronous horizontal inlaid assembly component is set as follows.

[0031] In this embodiment, as shown in the attached Figure 1 -attached Figure 5 figure, it includes an assembly shell 1, a positioning frame 2 and a linkage screw 3. The positioning frame 2 is fixed at the bottom end of the inner wall of the assembly shell 1. The linkage screw 3 is rotatably connected to the inner wall of the positioning frame 2. A synchronous horizontal inlaid assembly component is provided on the outer wall of the linkage screw 3; the synchronous horizontal inlaid assembly component includes a linkage sleeve block 4 threadedly connected to the outer wall of the linkage screw 3. Both sides of the linkage sleeve block 4 are fixedly connected with pressure groove strips 5. Two hinge shafts 6 are fixedly connected to the inner wall of each pressure groove strip 5. Two socket rods 7 are rotatably connected to the outer wall of the hinge shaft 6.

[0032] A push rod 8 is rotatably connected to the inner wall of the socket rod 7 and away from the hinge shaft 6. One end of the push rod 8 is provided with a horizontal positioning strip 9. The horizontal positioning strip 9 is fixedly connected to the push rod 8. A thermal battery group 10 is provided on one side of each horizontal positioning strip 9. The outer wall of the linkage sleeve block 4 is slidably connected to the positioning frame 2. The outer wall of the linkage sleeve block 4 and the inner wall of the positioning frame 2 are both smooth surfaces. The two pressure groove strips 5 are symmetrically arranged with respect to the linkage sleeve block 4. The horizontal positioning strip 9 is slidably connected to the assembly shell 1, and the thermal battery group 10 is inserted into the assembly shell 1; there is a gap between adjacent two horizontal positioning strips 9.

[0033] In this embodiment, as shown in the attached Figure 4 figure, one end of the horizontal positioning strip 9 is provided with a slide bar 12, and the slide bar 12 is fixedly connected to the assembly shell 1; the slide bar 12 is slidably connected to the horizontal positioning strip 9, so as to facilitate the guiding sliding of the horizontal positioning strip 9 along the outer wall of the slide bar 12 and stably realize the sliding operation of the horizontal positioning strip 9.

[0034] In this embodiment, as shown in the attached Figure 6 -attached Figure 7As shown, linkage pressing plates 13 are provided on both sides of the outer wall of the positioning frame 2. Both of the two linkage pressing plates 13 are fixedly connected to the linkage sleeve block 4. A synchronous longitudinal embedded assembly component is provided on the inner wall of the linkage pressing plate 13. The synchronous longitudinal embedded assembly component includes a pressing column 14 fixed to the inner wall of the linkage pressing plate 13. Two socket pressing rods 15 are rotatably connected to the outer wall of the pressing column 14. A push shaft 16 is slidably connected to the inner wall of the socket pressing rod 15 and away from the position of the pressing column 14. One end of each push shaft 16 is fixedly connected to a longitudinal positioning strip 17. A longitudinal groove 18 is formed on one side of the longitudinal positioning strip 17. The longitudinal positioning strip 17 is inserted into the thermal battery pack 10 to which the longitudinal groove 18 belongs. A sliding strip 19 is slidably connected to one end of the longitudinal positioning strip 17. The sliding strip 19 is fixedly connected to the assembly shell 1. The two linkage pressing plates 13 are symmetrically arranged with respect to the linkage sleeve block 4. The center point of the pressing column 14 is higher than the center point of the push shaft 16. The vertical cross-sectional shapes of the pressing column 14 and the push shaft 16 are both circular. The outer wall of the sliding strip 19 is a smooth surface, and the sliding strip 19 is used to guide the longitudinal positioning strip 17.

[0035] In this embodiment, as shown in the attached Figure 8 - attached Figure 9 figure, a rotating cap 20 is fixedly connected to the top end of the linkage screw 3. The rotating cap 20 is rotatably connected to the positioning frame 2. A docking component is provided at the top end of the rotating cap 20. The docking component includes a docking hole 21, a limiting ring 22, a docking groove 23, an insertion ring 24, a sealing cover 25, and a positioning column 26.

[0036] The docking hole 21 is opened at the top end of the rotating cap 20. The limiting ring 22 is located outside the rotating cap 20. The limiting ring 22 is fixedly connected to the positioning frame 2. The docking groove 23 is opened on the inner wall of the limiting ring 22. The insertion ring 24 is located above the limiting ring 22. The sealing cover 25 is fixedly located on the upper surface of the insertion ring 24, and the positioning column 26 is located inside the insertion ring 24. The positioning column 26 is fixedly connected to the sealing cover 25. The docking hole 21 and the positioning column 26 are movably inserted. The cross-sectional area of the positioning column 26 is smaller than the cross-sectional area of the docking hole 21. The insertion ring 24 and the limiting ring 22 to which the docking groove 23 belongs are movably inserted. The cross-sectional shape of the insertion ring 24 is circular.

[0037] The working principle of the thermal battery assembly positioning device of the present invention is as follows:

[0038] First, when installing and placing the thermal battery packs in the present invention, multiple thermal battery packs 10 are respectively inserted into the inner wall of the assembly shell 1, and the multiple thermal battery packs 10 are respectively close to multiple corner positions on the inner wall of the assembly shell 1.

[0039] Secondly, when the present invention performs synchronous horizontal embedded assembly positioning, the assembly and manufacturing personnel use tools to dock on the outer wall of the rotating cap 20. By rotating the rotating cap 20, the rotating cap 20 drives the linkage screw 3 to rotate. The linkage screw 3 rotates on the inner wall of the positioning frame 2. At the same time, the linkage screw 3 drives the linkage sleeve block 4 to move downward under the action of the thread transmission force. In this way, the linkage sleeve block 4 slides down along the inner wall of the positioning frame 2, and the linkage sleeve block 4 drives the two pressure groove bars 5 to move downward synchronously. The pressure groove bar 5 drives the hinge shaft 6 to move downward, and the hinge shaft 6 drives the tops of the two socket rods 7 to move downward synchronously. The socket rod 7 drives the push rod 8 to move backward, the push rod 8 drives the horizontal positioning bar 9 to move backward, the two horizontal positioning bars 9 at the rear move backward synchronously, and the two horizontal positioning bars 9 at the front can move forward synchronously. The horizontal positioning bar 9 slides along the outer wall of the slide bar 12. The two horizontal positioning bars 9 at the rear are respectively inserted into the positioning transverse grooves 11 inside the two rear heat battery packs 10, and the two horizontal positioning bars 9 at the front are respectively inserted into the positioning transverse grooves 11 inside the two front heat battery packs 10. Multiple horizontal positioning bars 9 can synchronously perform horizontal embedded assembly positioning on multiple heat battery packs 10.

[0040] At the same time, when the present invention performs synchronous vertical embedded assembly positioning, when the linkage sleeve block 4 moves downward, it drives the two linkage pressure plates 13 to move downward synchronously. The linkage pressure plate 13 drives the pressure column 14 to move downward, and the pressure column 14 drives the tops of the two socket pressure rods 15 to move downward synchronously. The socket pressure rod 15 drives the push shaft 16 to move leftward, the push shaft 16 drives the vertical positioning bar 17 to move leftward, and the vertical positioning bar 17 slides leftward along the outer wall of the sliding bar 19. The two vertical positioning bars 17 on the left move leftward synchronously, and the two vertical positioning bars 17 on the right move rightward synchronously. The two vertical positioning bars 17 on the left are respectively inserted into the two left vertical grooves 18, and the two vertical positioning bars 17 on the right are respectively inserted into the two right vertical grooves 18. Multiple vertical positioning bars 17 can synchronously perform vertical embedded assembly positioning on multiple heat battery packs 10.

[0041] Finally, when the present invention performs glue encapsulation, the encapsulation glue is injected into the inner wall of the limit ring 22, and the encapsulation glue is injected into the inner wall of the docking groove 23. It is also necessary to inject the encapsulation glue into the inside of the docking hole 21, and then move the encapsulation cover 25 downward. The encapsulation cover 25 drives the positioning column 26 to be inserted into the docking hole 21 for encapsulation bonding. At the same time, the encapsulation cover 25 drives the insertion ring 24 to be inserted into the docking groove 23 for encapsulation bonding. The lower surface of the encapsulation cover 25 presses on the upper surface of the limit ring 22, so as to encapsulate and fix the rotating cap 20. In this way, it is avoided that the linkage screw 3 rotates and loosens later. While being able to quickly perform embedded assembly positioning on multiple heat battery packs 10, it can also provide a firm force for multiple heat battery packs 10, realizing the stable assembly positioning of multiple heat battery packs 10.

[0042] Contents not described in detail in the specification belong to the prior art well-known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited. Conventional equipment can be used. In this technical solution, since the electrical control components not mentioned belong to the prior art, they are not shown in the figure and will not be described here either.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A thermal battery assembly positioning device, comprising an assembly shell, a positioning frame and a linkage screw, wherein the positioning frame is fixed to the bottom end of the inner wall of the assembly shell, and the linkage screw is rotatably connected to the inner wall of the positioning frame, characterized in that: The outer wall of the linkage screw is provided with a synchronous transverse embedded assembly component; the synchronous transverse embedded assembly component comprises a linkage sleeve block threadedly connected to the outer wall of the linkage screw, and the two sides of the linkage sleeve block are fixedly connected with a groove strip, and the inner wall of each groove strip is fixedly connected with two hinge shafts, and the outer wall of the hinge shaft is rotatably connected with two sleeve connecting rods; the inner wall of the sleeve connecting rod is rotatably connected with a push rod away from the hinge shaft position, and one end of the push rod is equipped with a transverse positioning strip, and a gap is provided between the two adjacent transverse positioning strips, and the transverse positioning strip is fixedly connected to the push rod on one side of each transverse positioning strip. A thermal battery group is provided on one side of each transverse positioning strip, and a linkage pressure plate is provided on both sides of the outer wall of the positioning frame, and the two linkage pressure plates are fixedly connected to the linkage sleeve block, and the inner wall of the linkage pressure plate is provided with a synchronous longitudinal embedded assembly component; the synchronous longitudinal embedded assembly component comprises a pressure column fixed to the inner wall of the linkage pressure plate, and the outer wall of the pressure column is rotatably connected with two sleeve pressure rods, and the inner wall of the sleeve pressure rod is slidably connected with a push shaft away from the pressure column position, and one end of each push shaft is fixedly connected with the longitudinal positioning strip.

2. The thermal battery assembly and positioning device according to claim 1, characterized in that: The outer wall of the linkage sleeve is slidably connected to the positioning frame, and the outer wall of the linkage sleeve and the inner wall of the positioning frame are both smooth surfaces.

3. The thermal battery assembly and positioning device according to claim 1, characterized in that: The two groove pressing strips are symmetrically arranged about the linkage sleeve block, the transverse positioning strip is slidably connected to the assembly shell, and the thermal battery pack is plugged into the assembly shell.

4. The thermal battery assembly and positioning device according to claim 1, characterized in that: A slide bar is provided at one end of the transverse positioning bar, and the slide bar is fixedly connected to the assembly shell; The slide bar is slidably connected to the transverse positioning bar.

5. The thermal battery assembly and positioning device according to claim 1, characterized in that: A longitudinal groove is formed on one side of the longitudinal positioning strip; The longitudinal positioning bar is plugged into the thermal battery pack to which the longitudinal groove belongs. One end of the longitudinal positioning bar is slidably connected with a sliding bar, and the sliding bar is fixedly connected to the assembly shell.

6. The thermal battery assembly and positioning device according to claim 1, characterized in that: The two linkage pressure plates are symmetrically arranged about the linkage sleeve block, and the center point of the pressure column is higher than the center point of the push shaft; The vertical cross-section shapes of the pressure column and the push shaft are both circular.

7. The thermal battery assembly and positioning device according to claim 5, characterized in that: The outer wall of the sliding bar is a smooth surface, and the sliding bar is used to guide the longitudinal positioning bar.

8. The thermal battery assembly and positioning device according to claim 1, characterized in that: The top end of the linkage screw is fixedly connected with a rotating cap, the rotating cap is rotationally connected to the positioning frame, and the top end of the rotating cap is provided with a docking assembly; The docking assembly includes a docking hole, a limiting ring, a docking groove, an insert ring, a packaging cover and a positioning column; The docking hole is opened at the top of the rotating cap, the limiting ring is located outside the rotating cap, the limiting ring is fixedly connected to the positioning frame, the docking groove is opened on the inner wall of the limiting ring, the plug-in ring is located above the limiting ring, the packaging cover is fixedly located on the upper surface of the plug-in ring, and the positioning column is located inside the plug-in ring, and the positioning column is fixedly connected to the packaging cover.

9. The thermal battery assembly and positioning device according to claim 8, characterized in that: The docking hole is movably plugged with the positioning column, and the cross-sectional area of ​​the positioning column is smaller than the cross-sectional area of ​​the docking hole.

10. The thermal battery assembly and positioning device according to claim 8, characterized in that: The insert ring is movably plugged with the limiting ring to which the docking groove belongs, and the cross-section of the insert ring is in the shape of a circular ring.

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