Battery cell pole positioning mechanism and battery cell module stacking device

Abstract

The utility model provides a battery cell pole positioning mechanism and a battery cell module stacking device, and relates to the technical field of battery manufacturing, the battery cell pole positioning mechanism comprises a fixed base and a plurality of comb tooth units; the fixed base is configured to be connected with a rack of the battery cell module stacking device; the multiple comb tooth units are detachably connected with the fixed base and are sequentially arranged at intervals in the first direction. An accommodating space is formed between every two adjacent comb tooth units, and the accommodating spaces are configured to accommodate and position battery cell poles. According to the battery cell pole positioning mechanism disclosed by the utility model, the replacement cost is reduced, and the shutdown debugging time of a production line can be shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery manufacturing technical field, specifically, relate to a kind of battery pole positioning mechanism and battery module stacking device. BACKGROUND

[0002] At present, in the automatic stacking process of battery module, positioning mechanism is the key component to ensure accurate stacking of battery. The existing positioning mechanism usually adopts fixed base and whole-row comb structure, wherein the fixed base provides stable support platform for whole-row comb structure, and the whole-row comb structure is usually an injection molded part for positioning battery pole.

[0003] However, due to the characteristics of the whole-row comb structure being integrally formed, when a tooth is damaged, the whole-row comb structure needs to be replaced, which not only increases the replacement cost, but also due to the whole-row comb structure being an injection molded part, deformation may occur due to processing differences or improper operation during installation. This deformation may cause installation errors in the whole-row comb structure. At this time, a long production downtime is needed for debugging, which seriously affects production efficiency. SUMMARY

[0004] To solve the above problems, the utility model provides a kind of battery pole positioning mechanism and battery module stacking device.

[0005] In the first aspect, the utility model provides a kind of battery pole positioning mechanism, including fixed base and multiple comb tooth units;The fixed base is configured to be connected with the rack of battery module stacking device;Multiple comb tooth units are respectively detachably connected with the fixed base, and are sequentially spaced along the first direction;There is accommodation space between adjacent two comb tooth units, and the accommodation space is configured to accommodate and position battery pole.

[0006] Optionally, the battery pole positioning mechanism further includes a threaded connection piece;The fixed base is provided with a first fixing hole structure, and the comb tooth unit is provided with a second fixing hole structure;The threaded connection piece is provided in the first fixing hole structure and the second fixing hole structure to connect the comb tooth unit and the fixed base.

[0007] Optionally, one end of the fixed base towards the comb tooth unit is provided with a positioning pin, and one end of the comb tooth unit towards the fixed base is provided with a positioning hole structure matched with the positioning pin;Or, one end of the fixed base towards the comb tooth unit is provided with a positioning hole structure, and one end of the comb tooth unit towards the fixed base is provided with a positioning pin matched with the positioning hole structure.

[0008] Optionally, when the positioning pin is cylindrical, each comb tooth unit and the fixed base are positioned by two or more positioning pins and positioning hole structures.

[0009] Optionally, the comb tooth unit comprises an integral mounting plate and a connecting block; the connecting block is protrudingly arranged on the end face of one end of the mounting plate along the thickness direction; the connecting block is provided with a second fixing hole structure and the positioning hole structure at one end thereof facing the fixed base; the mounting plates of two adjacent comb tooth units are oppositely arranged and form the accommodation space.

[0010] Optionally, the comb tooth unit further comprises a reinforcing block; the reinforcing block, the mounting plate and the connecting block are integrally formed; the reinforcing block is arranged on the end face of one end of the mounting plate along the thickness direction and is connected with the connecting block at an included angle.

[0011] Optionally, the mounting plate is provided with a guide surface at the edge of the end face thereof facing the accommodation space, and the guide surface is configured to guide the electrode post of the battery cell into the accommodation space.

[0012] Optionally, the comb tooth unit is made of insulating material.

[0013] Optionally, the fixed base comprises a first fixed plate and a second fixed plate; the first fixed plate and the second fixed plate are connected at an included angle; the first fixed plate is configured to be connected with the rack of the battery cell module stacking device; and the second fixed plate is detachably connected with the comb tooth unit.

[0014] In the second aspect, the utility model provides a kind of battery cell module stacking device, comprising the electrode post positioning mechanism as described above.

[0015] Compared with the related art, the utility model has the beneficial effects that:

[0016] After the electrode post positioning mechanism is installed, the fixed base is connected with the rack of the battery cell module stacking device, and the plurality of comb tooth units are sequentially and spacedly arranged along the first direction, the accommodation space is formed between adjacent comb tooth units, each accommodation space can accurately position the corresponding electrode post of the battery cell, so as to accurately stack and position the plurality of battery cells;Since the plurality of comb tooth units are detachably connected with the fixed base, when a comb tooth unit is damaged, only the comb tooth unit needs to be replaced, and the entire electrode post positioning mechanism does not need to be discarded, thereby significantly reducing the maintenance cost;At the same time, the volume of the single comb tooth unit is smaller than that of the existing whole-row comb tooth structure, the processing precision is higher, and when the single comb tooth unit is replaced, the stress surface is small and the operation path is short, so it is not easy to deform due to human factors, thereby effectively improving the installation error, ensuring the positioning consistency, and shortening the production line downtime debugging time. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a partial schematic view of the electrode post positioning mechanism of the utility model embodiment.

[0018] Figure 2 It is the partial explosion schematic view of the electrode pole positioning mechanism of the embodiment of the utility model;

[0019] Figure 3 It is the partial schematic view of the fixed base of the embodiment of the utility model Figure 1 ;

[0020] Figure 4 It is the structural schematic view of the comb tooth unit of the embodiment of the utility model Figure 1 ;

[0021] Figure 5 It is the partial schematic view of the fixed base of the embodiment of the utility model Figure 2 ;

[0022] Figure 6 It is the structural schematic view of the comb tooth unit of the embodiment of the utility model Figure 2 ;

[0023] Figure 7 It is the structural schematic view of the comb tooth unit of the embodiment of the utility model Figure 3 ;

[0024] Figure 8 It is the partial schematic view of the electrode module stacking device of the embodiment of the utility model.

[0025] Explanation of reference signs:

[0026] 100, fixed base; 101, first fixed plate; 102, second fixed plate; 103, first fixed hole structure; 104, positioning pin; 105, counterbore; 106, positioning hole structure; 200, comb tooth unit; 201, second fixed hole structure; 202, positioning hole structure; 203, mounting plate; 204, connecting block; 205, reinforcing block; 206, guide surface; 207, positioning pin; 300, containing space; 400, threaded connecting piece; 500, rack. Specific implementation

[0027] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below in combination with the drawings. Although some embodiments of the utility model are shown in the drawings, it should be understood that the utility model can be realized in various forms, and should not be interpreted as being limited to the embodiments described herein, on the contrary, these embodiments are provided in order to more thoroughly and completely understand the utility model. It should be understood that the drawings and embodiments of the utility model are only for illustrative purposes, and are not used to limit the protection scope of the utility model.

[0028] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in this utility model are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0029] In the description of the present invention, it should be understood that the terms "height", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the prior art, positioning of battery cell terminals during the automated stacking of battery cell modules typically relies on a single row of injection-molded comb teeth. Damage to any part of this structure requires replacement of the entire component, directly driving up spare part costs. Furthermore, the injection molding process inherently introduces shrinkage variations, and the overall component is susceptible to warping due to external forces during installation. This makes it difficult to avoid misalignment after replacement, necessitating additional debugging cycles to correct the problem. This can lead to lengthy production line downtime and significantly reduced production efficiency.

[0031] In order to solve the above problems, the battery cell pole positioning mechanism of an embodiment of the present invention includes a fixed base 100 and a plurality of comb tooth units 200; the fixed base 100 is configured to be connected to a rack 500 of a battery cell module stacking device; the plurality of comb tooth units 200 are respectively detachably connected to the fixed base 100, and are arranged in sequence along a first direction; an accommodating space 300 is provided between two adjacent comb tooth units 200, and the accommodating space 300 is configured to accommodate and position the battery cell pole.

[0032] Specifically, the number of the comb tooth units 200 is not specifically limited and is determined according to actual needs. Figure 1 As shown, the fixed base 100 can be an L-shaped plate, and a plurality of comb tooth units 200 are detachably connected to the fixed base 100 and are arranged in sequence along the extension direction of the fixed base 100; an accommodating space 300 is provided between two adjacent comb tooth units 200, and the shape and size of the accommodating space 300 match the battery cell pole and can be used to accommodate and position the battery cell pole.

[0033] In this embodiment, after the electrode post positioning mechanism is installed, the fixed base 100 is connected with the rack 500 of the battery cell module stacking device, and a plurality of comb tooth units 200 are arranged in sequence along the first direction with spacing therebetween, and a containing space 300 is formed between adjacent comb tooth units 200. Each containing space 300 can enable the corresponding electrode post to be accurately positioned, thereby enabling accurate stacking and positioning of a plurality of battery cells. Since the plurality of comb tooth units 200 are detachably connected with the fixed base 100, when a certain comb tooth unit 200 is damaged, only the comb tooth unit 200 needs to be replaced, and the entire electrode post positioning mechanism does not need to be discarded, thereby significantly reducing maintenance costs. At the same time, the single comb tooth unit 200 has a smaller volume and higher machining precision than the existing whole-row comb tooth structure, and the single comb tooth unit 200 has a small stress surface and a short operation path when being replaced, and is not prone to deformation due to human factors, thereby effectively improving installation errors, ensuring positioning consistency, and shortening production line downtime debugging time.

[0034] Optionally, the electrode post positioning mechanism further comprises a threaded connecting piece 400. The fixed base 100 is provided with a first fixing hole structure 103, and the comb tooth unit 200 is provided with a second fixing hole structure 201. The threaded connecting piece 400 is arranged through the first fixing hole structure 103 and the second fixing hole structure 201 to connect the comb tooth unit 200 and the fixed base 100.

[0035] Specifically, the number of the first fixing hole structure 103 and the second fixing hole structure 201 is not specifically limited and is determined according to actual needs. As shown in the Figure 2 threaded connecting piece 400 is a bolt; the fixed base 100 is provided with two first fixing hole structures 103, and the first fixing hole structure 103 is a through hole; the comb tooth unit 200 is provided with two second fixing hole structures 201, and the second fixing hole structure 201 is a threaded hole; the head of the bolt abuts against the fixed base 100, and the shank of the bolt is threadedly connected in the corresponding second fixing hole structure 201 after passing through the first fixing hole structure 103.

[0036] In this optional embodiment, since the threaded connecting piece 400 passes through the first fixing hole structure 103 on the fixed base 100 and the second fixing hole structure 201 on the comb tooth unit 200 to detachably lock the two, when a certain comb tooth unit 200 is worn or damaged, only the threaded connecting piece 400 needs to be loosened to replace the single comb tooth unit 200 without removing the remaining comb tooth units 200. At the same time, the adjustable clamping force provided by the threaded connection enables rigid positioning between the comb tooth unit 200 and the fixed base 100, which can not only offset the positional deviation caused by machining errors, but also eliminate local deformation by fine-tuning the tightening torque during installation, thereby reducing the debugging workload and shortening the downtime.

[0037] In other embodiments, the first and second fixing hole structures 103 and 201 are threaded holes, and the threaded connecting piece 400 is screwed into the corresponding first and second fixing hole structures 103 and 201.

[0038] Further, the fixing base 100 is also provided with a counterbore 105 coaxially arranged with the first fixing hole structure 103, which is configured to accommodate the head of the threaded connecting piece 400.

[0039] In this optional embodiment, since the fixing base 100 is provided with the counterbore 105 coaxially arranged with the first fixing hole structure 103, the head of the threaded connecting piece 400 is completely accommodated in the counterbore 105 without protruding from the surface of the fixing base 100, so that the pole and its peripheral components will not interfere with the protruding screw head during the stacking of the battery cell module, which not only eliminates the potential collision risk, but also maintains the flatness of the stacking plane.

[0040] Optionally, the fixing base 100 is provided with a positioning pin 104 at one end facing the comb unit 200, and the comb unit 200 is provided with a positioning hole structure 202 matching the positioning pin 104 at one end facing the fixing base 100; or, the fixing base 100 is provided with a positioning hole structure 106 at one end facing the comb unit 200, and the comb unit 200 is provided with a positioning pin 207 matching the positioning hole structure 106 at one end facing the fixing base 100.

[0041] Specifically, as shown in Figure 3 , the fixing base 100 is provided with two positioning pins 104 at one end facing the comb unit 200, and as shown in Figure 4 , the comb unit 200 is provided with two positioning hole structures 202 matching the two positioning pins 104 at one end facing the fixing base 100; the two positioning pins 104 are respectively inserted into the two positioning hole structures 202.

[0042] In this optional embodiment, since the fixing base 100 and the comb unit 200 are pre-positioned through the insertion fit of the positioning pin 104 and the positioning hole structure 202, the comb unit 200 can be restrained in the installation position before the threaded connecting piece 400 is tightened, and when replacing, only the old comb unit 200 needs to be pulled out and a new comb unit 200 needs to be inserted, and the positioning pin 104 and the positioning hole structure 202 automatically complete the precise positioning without the need for additional measuring tools or repeated debugging, which significantly shortens the downtime. At the same time, the insertion fit of the positioning pin 104 and the positioning hole structure 202 shares the shear force of the threaded connecting piece 400 at the threaded fastening position, which reduces the risk of thread loosening and prolongs the connection life, further ensuring the long-term stability of the battery cell pole positioning.

[0043] In another embodiment, as shown in Figure 5As shown, the fixed base 100 is provided with two positioning hole structures 106 at one end thereof facing the comb unit 200. Figure 6 As shown, the comb unit 200 is provided with two positioning pins 207 at one end thereof facing the fixed base 100, which are matched with the two positioning hole structures 106; the two positioning pins 207 are respectively inserted into the two positioning hole structures 106.

[0044] Optionally, when the positioning pins 104, 207 are cylindrical, each comb unit 200 is positioned with the fixed base 100 through two or more positioning pins 104, 207 and positioning hole structures 202, 106.

[0045] In this optional embodiment, when the positioning pins 104, 207 are cylindrical, each comb unit 200 is positioned with the fixed base 100 through two or more positioning pins 104, 207 and positioning hole structures 202, 106, which together form a constraint positioning; the cylindrical surface provides a self-centering effect and the multi-point arrangement eliminates the rotational degree of freedom around a single pin axis, so that the comb unit 200 can be precisely positioned before being locked by the screw.

[0046] In other embodiments, when the positioning pins 104, 207 are non-circular, such as polygonal, elliptical, triangular, etc., the number of positioning pins 104, 207 and positioning hole structures 202, 106 can also be one.

[0047] Optionally, the comb unit 200 comprises an integral mounting plate 203 and a connecting block 204; the connecting block 204 is protrudingly arranged at an end surface of the mounting plate 203 along the thickness direction; the connecting block 204 is provided with a second fixing hole structure 201 and a positioning hole structure 202 at one end thereof facing the fixed base 100; the mounting plates 203 of two adjacent comb units 200 are oppositely arranged and form a receiving space 300.

[0048] Specifically, the shapes of the mounting plate 203 and the connecting block 204 are not specifically limited and are determined according to actual requirements. For example, Figure 4 As shown, the mounting plate 203 and the connecting block 204 are integrally formed, wherein the mounting plate 203 is square-like, the connecting block 204 is square and protrudingly arranged at an end surface of the mounting plate 203 along the thickness direction, the connecting block 204 is located at an edge of the mounting plate 203 close to the fixed base 100, and the connecting block 204 is provided with two second fixing hole structures 201 and two positioning hole structures 202 at one end thereof facing the fixed base 100; and the mounting plates 203 of two adjacent comb units 200 are oppositely arranged and form a receiving space 300.

[0049] In this optional embodiment, the mounting plates 203 of adjacent comb tooth units 200 are arranged in parallel and relative to each other, so that an accommodating space 300 is enclosed between the adjacent mounting plates 203; and the connecting block 204 protrudes integrally in the thickness direction of the mounting plate 203 to form a thickened boss, which provides sufficient physical thickness and processing space for the second fixing hole structure 201 and the positioning hole structure 202, and can directly complete high-precision hole system processing in one clamping, avoiding hole position offset or hole mouth deformation caused by drilling on the thin-walled mounting plate 203.

[0050] Optionally, the comb unit 200 further includes a reinforcement block 205 ; the reinforcement block 205 , the mounting plate 203 and the connecting block 204 are integrally formed; the reinforcement block 205 is arranged on the end face of one end of the mounting plate 203 along the thickness direction and is connected to the connecting block 204 at an angle.

[0051] Specifically, the shape of the reinforcement block 205 is not specifically limited and is determined according to actual needs. Figure 7 As shown, the reinforcing block 205, the mounting plate 203 and the connecting block 204 are integrally formed, the reinforcing block 205 is square in shape, the reinforcing block 205 and the connecting block 204 are arranged on the same end face of the mounting plate 203 along the thickness direction, and the reinforcing block 205 and the connecting block 204 are vertically connected, for example, the reinforcing block 205 and the connecting block 204 are integrally connected in an L shape.

[0052] In this optional embodiment, since the reinforcement block 205, the mounting plate 203 and the connecting block 204 are formed as one piece, the mounting plate 203 can quickly disperse the bending stress into a composite stress of compression and tension through the angle structure between the reinforcement block 205 and the connecting block 204 when it is subjected to the lateral force of the battery cell stacking, and the overall bending modulus is significantly increased, thereby effectively suppressing the plastic deformation of the comb tooth unit 200; at the same time, the integrated structure eliminates the micro gaps and stress concentration caused by traditional split welding or threaded splicing, and maintains the size stability of the accommodating space 300 for a long time, without the need for repeated shutdown and correction due to minor deformation, further ensuring the positioning accuracy of the battery cell poles.

[0053] Optionally, a guide surface 206 is provided at an edge of the end surface of the mounting plate 203 facing the accommodating space 300 , and the guide surface 206 is configured to guide the battery cell pole to enter the accommodating space 300 .

[0054] Specifically, the guide surface 206 may be an inclined surface, a curved surface, or a combination of a curved surface and an inclined surface. Figure 7 As shown, a guide surface 206 is provided at the edge of the end surface of the mounting plate 203 facing the accommodating space 300 . The guide surface 206 is a combination of an arc surface and an inclined surface, which can guide the battery cell pole into the accommodating space 300 .

[0055] In the optional embodiment, the continuous guide surface 206 is directly machined on the end surface of the mounting plate 203 facing the accommodation space 300. When the electrode post of the battery cell approaches during the stacking operation, the guide surface 206 gradually corrects the movement track of the electrode post to the central axis of the accommodation space 300 with a gradual inclined surface, avoiding rigid collision between the edge of the electrode post of the battery cell and the comb tooth unit 200, and causing damage to the comb tooth unit 200. Meanwhile, the guide surface 206 is integrally formed with the mounting plate 203, without the need for additional guide parts, which eliminates assembly gaps and simplifies maintenance.

[0056] Optionally, the comb tooth unit 200 is made of insulating material.

[0057] Specifically, the insulating material is nylon or polyoxymethylene, which is not limited here and is determined according to actual needs.

[0058] In the optional embodiment, the comb tooth unit 200 is entirely made of insulating material, so that the electrode post of the battery cell is reliably electrically isolated when directly contacting the comb tooth unit 200, eliminating the risk of short circuit or micro-arc that may be caused by metal positioning parts. Meanwhile, the insulating material itself has a certain elastic modulus, which can produce a small amount of self-adaptive deformation when the electrode post of the battery cell is inserted, protecting the surface of the electrode post from being scratched and maintaining positioning accuracy through springback recovery. In addition, the insulating material is non-magnetic and non-conductive, avoiding additional heating caused by eddy current or stray current during the operation of the battery stack, so that the positioning structure can maintain mechanical and thermal stability for a long time while ensuring safety insulation, without the need for additional insulating gaskets or coatings, simplifying assembly and reducing maintenance complexity.

[0059] Optionally, the fixed base 100 includes a first fixed plate 101 and a second fixed plate 102; the first fixed plate 101 and the second fixed plate 102 are connected at an included angle; the first fixed plate 101 is configured to be connected with the rack 500 of the battery cell module stacking device; and the second fixed plate 102 is detachably connected with the comb tooth unit 200.

[0060] Specifically, the shape of the fixed base 100 is not limited, and is determined according to actual conditions. As shown in Figure 1 The first fixed plate 101 and the second fixed plate 102 both extend along a first direction, and are connected perpendicularly in an L shape, i.e., the cross section of the fixed base 100 is in an L shape, the first fixed plate 101 of the fixed base 100 constitutes a short side of the L shape, and is used to be connected with the rack 500 of the battery cell module stacking device; the second fixed plate 102 of the fixed base 100 constitutes a long side of the L shape, and is used to be detachably connected with the comb tooth unit 200. A plurality of comb tooth units 200 are located on the side of the second fixed plate 102 away from the first fixed plate 101, and are arranged at intervals along the extension direction of the second fixed plate 102.

[0061] In this optional embodiment, the first fixed plate 101 and the second fixed plate 102 are connected at an angle, and the angle structure therebetween forms a triangular stable support when subjected to force, so that the bending moment generated on the connection surface between the second fixed plate 102 and the comb unit 200 when subjected to the thrust of cell pole insertion and stacking is quickly decomposed into a shear load along the first fixed plate 101 and a compressive stress along the angle edge, so that the overall stiffness is significantly improved and the deformation is extremely small; at the same time, the angle structure not only provides a spacious connection space for the first fixed plate 101 to the frame 500, but also leaves sufficient thickness for the second fixed plate 102 to process the first fixing hole, countersunk hole 105 and locating pin 104.

[0062] The battery cell module stacking device of the embodiment of the present invention includes the battery cell pole positioning mechanism as described above.

[0063] Specifically, if Figure 8 As shown, the battery module stacking device also includes a frame 500, and the fixed base 100 of the battery pole positioning mechanism is detachably connected to the frame 500, and the connection method between the two includes but is not limited to bolt connection, clamping, etc.

[0064] The battery cell module stacking device of this embodiment has the same beneficial effects as the above-mentioned battery cell pole positioning mechanism relative to the related art, so they will not be described in detail here.

[0065] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A battery cell pole positioning mechanism, characterized in that: The utility model provides a kind of electric battery cell module stacking device, including fixed base (100) and multiple comb tooth units (200);The fixed base (100) is configured to be connected with rack (500) of electric battery cell module stacking device;Multiple the comb tooth units (200) are respectively with the fixed base (100) detachable connection, and sequentially interval arrangement along first direction;Between two adjacent the comb tooth units (200), accommodation space (300) is equipped, and the accommodation space (300) is configured to accommodate and position electric battery cell pole.

2. The cell post positioning mechanism of claim 1, wherein, It also includes threaded connections (400);The fixed base (100) is provided with first fixed hole structure (103), and the comb tooth unit (200) is provided with second fixed hole structure (201);The threaded connections (400) are provided in the first fixed hole structure (103) and the second fixed hole structure (201) to connect the comb tooth unit (200) and the fixed base (100).

3. The cell post positioning mechanism of claim 2, wherein, The fixed base (100) is provided with positioning pin (104) to the one end of the comb tooth unit (200), and the comb tooth unit (200) is provided with the positioning hole structure (202) matched with the positioning pin (104) to the one end of the fixed base (100);Or, the fixed base (100) is provided with positioning hole structure (106) to the one end of the comb tooth unit (200), and the comb tooth unit (200) is provided with the positioning pin (207) matched with the positioning hole structure (106) to the one end of the fixed base (100).

4. The cell post positioning mechanism of claim 3, wherein, When the positioning pin (104,207) is cylindrical, each comb tooth unit (200) is positioned by more than two positioning pins (104,207) and positioning hole structures (202,106) with the fixed base (100).

5. The cell post positioning mechanism of claim 3, wherein, The comb tooth unit (200) includes integrally formed mounting plate (203) and connecting block (204);The connecting block (204) is protrudingly provided to the end face of one end of the mounting plate (203) in thickness direction;The connecting block (204) is provided with second fixed hole structure (201) and the positioning hole structure (202) to the one end of the fixed base (100);The mounting plate (203) of two adjacent the comb tooth units (200) is oppositely arranged and forms the accommodation space (300).

6. The cell post positioning mechanism of claim 5, wherein, The comb tooth unit (200) further includes reinforcing block (205);The reinforcing block (205), the mounting plate (203) and the connecting block (204) are integrally formed;The reinforcing block (205) is provided to the end face of one end of the mounting plate (203) in thickness direction, and is connected at an angle with the connecting block (204).

7. The cell post positioning mechanism of claim 5, wherein, The edge of the end face of the mounting plate (203) towards the accommodation space (300) is provided with guide surface (206), and the guide surface (206) is configured to guide the electric battery cell pole into the accommodation space (300).

8. The cell post positioning mechanism of claim 1, wherein, The comb tooth unit (200) is made of insulating material.

9. The mechanism of claim 1, wherein, The fixed base (100) comprises a first fixed plate (101) and a second fixed plate (102); the first fixed plate (101) and the second fixed plate (102) are connected at an included angle; the first fixed plate (101) is configured to be connected with a rack (500) of the battery cell module stacking device; the second fixed plate (102) is detachably connected with the comb tooth unit (200).

10. An electric cell module stacking apparatus characterized by comprising: An electric cell pole positioning mechanism as claimed in any one of claims 1 to 9.

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