Clamp for baking lithium battery cell

Abstract

The utility model belongs to the field of lithium battery production, and particularly relates to a clamp for baking a lithium battery cell, which comprises a baking seat, the top of the baking base is slidably connected with a top cover. Air inlet cavities are formed in the two sides of the baking base; the side face of the air inlet cavity is fixedly connected with an air inlet pipe. The middle part of the top cover is fixedly connected with an exhaust pipe; the side, away from the air inlet pipe, of the air inlet cavity is in bolted connection with a splitter plate. A plurality of air outlet grooves are formed in the splitter plate; by arranging the flow guide plate, a push rod, a rod body, a first shaft body, a rotating shaft, fan blades and a cam, the cam rotates to push the first shaft body and the push rod to move, and then the push rod moves to drive the flow guide plate to rotate through the rod body; the spraying direction of the hot air can be changed through rotation of the flow guide plate, so that the blowing range of the hot air can be enlarged, the drying area of the hot air can be enlarged, and the drying uniformity is improved.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery production, in particular to a clamp for baking lithium battery cores. Background Art

[0002] Lithium battery cells are one of the important components of lithium batteries, and they are the power storage part of the battery.

[0003] In the current existing technology, lithium battery cells need to go through a baking and drying process during their production. During the baking process, a battery cell baking fixture is required. The baking fixture in the existing technology is mainly composed of a baking seat, an air inlet pipe, a top cover, an air outlet pipe and a clamping mechanism. High-temperature hot air is injected from both sides of the baking seat through the air inlet pipe, and the air is discharged from the air outlet pipe. The clamping mechanism is used to fix the battery cell. In order to improve the uniformity of drying, a plurality of air outlet slots are opened at the air outlet position of the baking seat to disperse the airflow into multiple streams, thereby improving the uniformity of drying.

[0004] However, the existing drying exhaust method has a fixed airflow direction, resulting in a fixed area for drying the battery cells, which makes the drying uniformity poor. Therefore, in order to solve the above problem, a lithium battery cell baking fixture is proposed. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model provides a clamp for baking a lithium battery cell.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a lithium battery cell baking clamp, comprising a baking seat; a top cover is slidably connected to the top of the baking seat; air inlet cavities are provided on both sides of the baking seat; an air inlet pipe is fixedly connected to the side of the air inlet cavity; an exhaust pipe is fixedly connected to the middle of the top cover; a diverter plate is bolted to the side of the air inlet cavity away from the air inlet pipe; a plurality of air outlet grooves are provided on the diverter plate; a guide plate is rotatably connected to the middle of the air outlet groove; a torsion spring is installed at the rotating connection of the guide plate; a push rod is slidably connected to the side of the diverter plate close to the rotating shaft; a plurality of rod bodies are fixedly connected to the side of the push rod close to the guide plate; a first shaft body is fixedly connected to the side of the push rod away from the rod body; a driving assembly is provided on the air inlet pipe; and a clamping assembly is provided inside the baking seat.

[0007] Preferably, the driving assembly includes a rotating shaft; a bracket is fixedly connected to the inner wall of the air inlet pipe; the rotating shaft is rotatably connected to the middle part of the bracket; a cam is fixedly connected to one end of the rotating shaft; a fan blade is fixedly connected to the other end of the rotating shaft; and the cam is located on the side of the first shaft.

[0008] Preferably, the clamping assembly includes a base frame; two pairs of support rods are fixedly connected to the middle of the base frame; a plurality of first clamping plates are fixedly connected to the support rods; a plurality of second clamping plates are slidably connected to the support rods; the second clamping plates are located on the sides of the first clamping plates; a fixing spring is fixedly connected between the first clamping plates and the second clamping plates; a hydraulic cylinder is fixedly connected to the bottom side of the baking seat; and the output end of the hydraulic cylinder is fixedly connected to the base frame.

[0009] Preferably, a second shaft is fixedly connected to the side surface of the second clamping plate; a blocking rod is fixedly connected to the top inner wall of the baking seat at a position corresponding to the second shaft; and a trapezoidal groove is formed on the blocking rod at a position corresponding to the second shaft.

[0010] Preferably, a plurality of guide rods are fixedly connected to the inner side wall of the bottom of the baking seat; guide plates are fixedly connected to both sides of the base frame; and the guide rods penetrate the guide plates and are slidably connected thereto.

[0011] Preferably, both sides of the diverter plate are provided with oblique grooves; a pair of arc plates are symmetrically fixedly connected to both sides of the baking seat; and the pair of arc plates are respectively located at the front and rear sides of the bottom frame.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model is provided with a guide plate, a push rod, a rod body, a first shaft body, a rotating shaft, a fan blade and a cam. When in use, high-temperature hot air is injected into the air inlet cavity by relying on the air inlet pipe. During the flow of hot air, the fan blade is driven to rotate, and then the rotation of the fan blade drives the rotating shaft and the cam to rotate. Then the rotation of the cam drives the first shaft body and the push rod to move, and then the movement of the push rod drives the guide plate to rotate through the rod body. Thus, the rotation of the guide plate can change the direction of the hot air ejection, thereby increasing the sweeping range of the hot air, thereby increasing the area of ​​hot air drying, and improving the uniformity of drying;

[0014] 2. The utility model sets a second rotating shaft and a baffle rod. After the bottom frame moves to the top of the baking seat, the second shaft body will be stuck in the trapezoidal groove. Then, under the action of the trapezoidal groove, the second shaft body and the second clamping plate are pushed to move, so that the second clamping plate and the second clamping plate are separated, which makes it convenient for the staff to take out the battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the baking oven structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the diverter plate of the utility model;

[0019] Figure 4 It is a schematic diagram of the chassis structure of the utility model.

[0020] In the figure: 11, baking seat; 12, air inlet pipe; 13, top cover; 14, exhaust pipe; 15, splitter plate; 16, guide plate; 17, push rod; 18, rod body; 19, first shaft body; 21, rotating shaft; 22, fan blade; 23, cam; 31, hydraulic cylinder; 32, base frame; 33, support rod; 34, first clamping plate; 35, second clamping plate; 41, second shaft body; 42, blocking rod; 43, trapezoidal groove; 51, guide rod; 52, guide plate; 61, inclined groove; 62, arc plate; 71, first pulley; 72, second pulley. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Specific examples are given below.

[0023] See also Figure 1-3As shown, a lithium battery cell baking fixture comprises a baking seat 11; a top cover 13 is slidably connected to the top of the baking seat 11; air inlet cavities are provided on both sides of the baking seat 11; an air inlet pipe 12 is fixedly connected to the side of the air inlet cavity; an exhaust pipe 14 is fixedly connected to the middle of the top cover 13; a diverter plate 15 is bolted to the side of the air inlet cavity away from the air inlet pipe 12; a plurality of air outlet grooves are provided on the diverter plate 15; a guide plate 16 is rotatably connected to the middle of the air outlet groove; a torsion spring is installed at the rotation connection of the guide plate 16; a side of the diverter plate 15 close to the rotating shaft 21 is slidably connected to the top cover 13 ... The push rod 17 is connected to the guide plate 16; a plurality of rod bodies 18 are fixedly connected to the push rod 17 on one side close to the guide plate 16; a first shaft body 19 is fixedly connected to the push rod 17 on the side away from the rod body 18; a driving assembly is provided on the air inlet pipe 12; a clamping assembly is provided inside the baking seat 11; the driving assembly includes a rotating shaft 21; a bracket is fixedly connected to the inner side wall of the air inlet pipe 12; the rotating shaft 21 is rotatably connected to the middle part of the bracket; a cam 23 is fixedly connected to one end of the rotating shaft 21; a fan blade 22 is fixedly connected to the other end of the rotating shaft 21; the cam 23 is located on the side of the first shaft body 19;

[0024] When in use, high-temperature hot air is injected into the air intake chamber through the air intake pipe 12, and the fan blades 22 are driven to rotate during the flow of hot air. The rotation of the fan blades 22 drives the rotating shaft 21 and the cam 23 to rotate, and the rotation of the cam 23 drives the first shaft 19 and the push rod 17 to move. The movement of the push rod 17 drives the guide plate 16 to rotate through the rod body 18, so that the rotation of the guide plate 16 can change the direction of the hot air ejection, thereby increasing the sweeping range of the hot air, and then increasing the area of ​​hot air drying and the uniformity of drying. When the cam 23 is separated from the first shaft 19, the torsion spring drives the guide plate 16 to reset, and the reset of the guide plate 16 drives the rod body 18 and the push rod 17 to reset.

[0025] Further, such as Figure 2 and 4As shown, the clamping assembly includes a base frame 32; two pairs of support rods 33 are fixedly connected to the middle of the base frame 32; a plurality of first clamping plates 34 are fixedly connected to the support rods 33; a plurality of second clamping plates 35 are slidably connected to the support rods 33; the second clamping plates 35 are located on the side of the first clamping plates 34; a fixing spring is fixedly connected between the first clamping plates 34 and the second clamping plates 35; a hydraulic cylinder 31 is fixedly connected to the bottom side of the baking seat 11; the output end of the hydraulic cylinder 31 is fixedly connected to the base frame 32; when in use, the battery cell is placed between the first clamping plates 34 and the second clamping plates 35, and then the second clamping plates 35 are pushed by the fixing spring to fix them. As the water evaporates, the thickness of the battery cell will decrease. The fixing spring pushes the second clamping plates 35 to stably clamp the battery cell. After baking is completed, the top cover 13 is removed, and then the hydraulic cylinder 31 is controlled to drive the base frame 32 to push up, and then the battery cell is pushed out of the battery cell baking seat 11, so that it is convenient for the staff to take out the battery cell.

[0026] Further, such as Figure 2 and 4 As shown, a second shaft 41 is fixedly connected to the side of the second clamping plate 35; a blocking rod 42 is fixedly connected to the top inner wall of the baking seat 11 at a position corresponding to the second shaft 41; a trapezoidal groove 43 is opened on the blocking rod 42 at a position corresponding to the second shaft 41; after the base frame 32 moves to the top of the baking seat 11, the second shaft 41 will be inserted into the trapezoidal groove 43, and then under the action of the trapezoidal groove 43, the second shaft 41 and the second clamping plate 35 are pushed to move, so that the second clamping plate 35 and the second clamping plate 35 are separated, so that it is convenient for the staff to take out the battery cells.

[0027] Further, such as Figure 2 As shown, a plurality of guide rods 51 are fixedly connected to the inner side wall of the bottom of the baking seat 11; guide plates 52 are fixedly connected to both sides of the base frame 32; the guide rods 51 penetrate the guide plates 52 and are slidably connected thereto; when the base frame 32 moves up and down, the base frame 32 drives the guide plates 52 to slide on the guide rods 51, and with the cooperation of the guide rods 51 and the guide plates 52, the base frame 32 can be guided to improve the stability of the lifting and lowering of the base frame 32.

[0028] Further, such as Figure 3-4 As shown, both sides of the diverter plate 15 are provided with inclined grooves 61; a pair of arc plates 62 are symmetrically fixedly connected to both sides of the baking seat 11; the pair of arc plates 62 are respectively located on the front and rear sides of the base frame 32; when in use, the separation plate will blow out hot air from the inclined grooves 61 to both sides, and the hot air is guided by the arc plates 62 so that the hot air is dried from the front and rear sides of the base frame 32, thereby facilitating the improvement of drying uniformity.

[0029] Further, such as Figure 3-4As shown, the first shaft 19 is rotatably connected to a first pulley 71; the second shaft 41 is rotatably connected to a second pulley 72; when in use, the first pulley 71 and the second pulley 72 can reduce friction, thereby reducing wear on parts and extending service life.

[0030] Working principle: when in use, high-temperature hot air is injected into the air intake chamber through the air intake pipe 12, and the fan blades 22 are pushed to rotate during the flow of hot air, and then the rotation of the fan blades 22 drives the rotating shaft 21 and the cam 23 to rotate, and then the rotation of the cam 23 drives the first shaft 19 and the push rod 17 to move, and then the movement of the push rod 17 drives the guide plate 16 to rotate through the rod body 18, so that the rotation of the guide plate 16 can change the direction of the hot air ejection, so as to increase the sweeping range of the hot air, and then increase the area of ​​hot air drying, and improve the uniformity of drying. When the cam 23 is separated from the first shaft body 19, the torsion spring drives the guide plate 16 to reset, and the reset of the guide plate 16 pushes the rod body 18 and the push rod 17 to reset. When in use, the battery cell is placed between the first clamping plate 34 and the second clamping plate 35, and then the second clamping plate 35 is pushed to fix it by the fixing spring. As the water evaporates, the thickness of the battery cell will decrease, and the fixing spring pushes the second clamping plate 35 to stably The battery cell is kept clamped. After baking is completed, the top cover 13 is removed, and then the hydraulic cylinder 31 is controlled to drive the bottom frame 32 to push up, and then the battery cell is pushed out from the battery cell baking seat 11, so that it is convenient for the staff to take out the battery cell. After the bottom frame 32 moves to the top of the baking seat 11, the second shaft body 41 is inserted into the trapezoidal groove 43, and then the second shaft body 41 and the second clamping plate 35 are pushed to move under the action of the trapezoidal groove 43, so that the second clamping plate 35 and the second clamping plate 35 are separated, so that It is convenient for the staff to take out the battery cells. When the bottom frame 32 moves up and down, the bottom frame 32 will drive the guide plate 52 to slide on the guide rod 51. With the cooperation of the guide rod 51 and the guide plate 52, the bottom frame 32 can be guided to improve the stability of the lifting and lowering of the bottom frame 32. When in use, the separation plate will blow out hot air from the inclined groove 61 to both sides. Under the guidance of the arc plate 62, the hot air is dried from the front and back sides of the bottom frame 32, so as to improve the uniformity of drying.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A fixture for baking a lithium battery cell, comprising a baking seat (11); a top cover (13) is slidably connected to the top of the baking seat (11); air intake cavities are provided on both sides of the baking seat (11); an air intake pipe (12) is fixedly connected to the side of the air intake cavity; an exhaust pipe (14) is fixedly connected to the middle of the top cover (13); the characteristics are: A diverter plate (15) is bolted to the side of the air inlet cavity away from the air inlet pipe (12); a plurality of air outlet grooves are formed on the diverter plate (15); a guide plate (16) is rotatably connected to the middle of the air outlet groove; a torsion spring is installed at the rotatable connection of the guide plate (16); a push rod (17) is slidably connected to the side of the diverter plate (15) close to the rotating shaft (21); a plurality of rod bodies (18) are fixedly connected to the side of the push rod (17) close to the guide plate (16); a first shaft body (19) is fixedly connected to the side of the push rod (17) away from the rod body (18); a driving assembly is provided on the air inlet pipe (12); and a clamping assembly is provided inside the baking seat (11).

2. A lithium battery cell baking fixture according to claim 1, characterized in that: The driving assembly comprises a rotating shaft (21); a bracket is fixedly connected to the inner side wall of the air inlet pipe (12); the rotating shaft (21) is rotatably connected to the middle part of the bracket; a cam (23) is fixedly connected to one end of the rotating shaft (21); a fan blade (22) is fixedly connected to the other end of the rotating shaft (21); and the cam (23) is located on the side of the first shaft body (19).

3. A lithium battery cell baking fixture according to claim 2, characterized in that: The clamping assembly comprises a base frame (32); two pairs of support rods (33) are fixedly connected to the middle of the base frame (32); a plurality of first clamping plates (34) are fixedly connected to the support rods (33); a plurality of second clamping plates (35) are slidably connected to the support rods (33); the second clamping plates (35) are located on the side of the first clamping plates (34); a fixing spring is fixedly connected between the first clamping plates (34) and the second clamping plates (35); a hydraulic cylinder (31) is fixedly connected to the bottom side of the baking seat (11); and the output end of the hydraulic cylinder (31) is fixedly connected to the base frame (32).

4. A lithium battery cell baking fixture according to claim 3, characterized in that: A second shaft (41) is fixedly connected to the side surface of the second clamping plate (35); a blocking rod (42) is fixedly connected to a position on the top inner side wall of the baking seat (11) corresponding to the second shaft (41); and a trapezoidal groove (43) is provided on the blocking rod (42) at a position corresponding to the second shaft (41).

5. A lithium battery cell baking fixture according to claim 4, characterized in that: A plurality of guide rods (51) are fixedly connected to the inner side wall of the bottom of the baking seat (11); guide plates (52) are fixedly connected to both sides of the bottom frame (32); and the guide rods (51) penetrate the guide plates (52) and are slidably connected thereto.

6. A lithium battery cell baking fixture according to claim 5, characterized in that: Both sides of the diverter plate (15) are provided with inclined grooves (61); a pair of arc plates (62) are symmetrically fixedly connected to both sides of the baking seat (11); the pair of arc plates (62) are respectively located at the front and rear sides of the bottom frame (32).

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