A pole group fixing structure and lead-acid battery

Abstract

The utility model belongs to the technical field of lead-acid batteries, and specifically relates to a pole group fixing structure and a lead-acid battery. The fixing structure includes a fixed bottom plate, a supporting side plate is vertically fixed to the upper surface of the fixed bottom plate, and a plurality of pole plates are placed in parallel on both sides of the supporting side plate. The plurality of pole plates are tightly assembled through the supporting side plate and the fixed bottom plate to form a pole group. A bolt is embedded in the middle position of the top of the supporting side plate and a pressure plate is penetrated by the bolt. A nut is provided on the top of the pressure plate and is horizontally arranged on the top of the supporting side plate through the nut and the bolt and is arranged parallel to the fixed bottom plate at the same time. The utility model has a simple structure, simple assembly and low manufacturing cost, and solves the problem that the pole group is easily displaced from the plastic shell due to the vibration of the lead-acid battery and thus damages the lead-acid battery, and the pole group is easily insufficient in supporting force when encountering severe vibration, thereby ensuring the vibration resistance and production efficiency of the lead-acid battery.

Description

Technical Field

[0001] The utility model belongs to the technical field of lead-acid batteries, and in particular relates to a pole group fixing structure and a lead-acid battery. Background Art

[0002] Lead-acid batteries are composed of positive and negative plates, separators, shells, electrolytes and terminal heads. The chemical reaction of discharge is carried out by the active substances of the positive plates and the negative plates under the action of the electrolyte (dilute sulfuric acid solution). The grid of the plates is made of lead-antimony alloy. Multiple plates are tightly assembled and welded to form a pole group. The pole group needs to be tightly bonded to the plastic shell of the lead-acid battery to ensure the normal operation of the lead-acid battery. At present, most of the pole groups are fixed in the plastic shell by the method of plugging the edge frame, but this method has low versatility and it is difficult to effectively control the consistency of the fixation of multiple pole groups, so that the loosely fixed pole group will fail prematurely due to vibration, and the tightly fixed pole group will bulge and deform. In actual situations, the bottom of the pole group fixed by this method is in a suspended state, and it is very easy for the pole group and the plastic shell to be displaced due to the vibration of the lead-acid battery. Due to the heavy weight and large inertia of the pole group, and the AGM partition between the pole plates is used to tightly assemble the pole group, the friction between the pole group and the plastic shell is small when fixed, and the supporting force of the lead connector is insufficient. Therefore, when the pole group and the plastic shell are displaced, it is very easy to cause repeated creases on the lead parts inside the lead-acid battery. In severe cases, it may also cause the internal connectors to break and short-circuit, and the pole plates to be damaged.

[0003] In the prior art, there are studies on a series of problems with the use of plug-side frames to fix pole groups, such as patent application CN117613493A - Commercial vehicle battery pole group fixing structure and fixing method, which uses slots and elastic supports to achieve temporary tightening of the pole group, and fixes the base and pole group with hot melt adhesive to achieve permanent fixation of the pole group, solving the problem of low versatility and difficulty in ensuring consistent fixation of multiple pole groups in the current use of plug-side frames to fix pole groups. However, although the existing pole group fixing structure can ensure the vibration resistance of the battery, it is difficult to effectively reduce its production cost due to the complexity of the existing pole group fixing structure, and the assembly process is also relatively cumbersome, which seriously affects the efficiency of lead-acid battery production. To this end, a new technical solution is needed to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a pole group fixing structure and a lead-acid battery, so as to solve the problems raised in the above-mentioned background technology that the current pole group fixing structure is complicated, it is difficult to effectively reduce its production cost, and the assembly process is relatively cumbersome, which seriously affects the efficiency of lead-acid battery production.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pole group fixing structure, including a fixed base plate, a supporting side plate is vertically fixed to the middle position of the upper surface of the fixed base plate, a plurality of pole plates are stacked in parallel on both sides of the supporting side plate, and the plurality of pole plates are tightly assembled through the supporting side plate and the fixed base plate to form a pole group, a bolt is embedded in the middle position of the top of the supporting side plate and a pressure plate is connected through the bolt, a nut threadedly connected to the bolt is provided on the top of the pressure plate, and the nut and bolt are horizontally arranged on the top of the supporting side plate and at the same time arranged parallel to the fixed base plate.

[0006] Furthermore, two adjacent pole plates are stacked in reverse, and the top poles of the two adjacent pole plates stacked in reverse are arranged at both ends of the top of the pole group, and the two adjacent poles at one end of the top of the pole group are alternately arranged.

[0007] Furthermore, a plurality of guide holes are provided on the support side plate, and the plurality of guide holes are distributed on the support side plate in an array structure. A groove is provided in the middle of the top of the support side plate and is embedded with bolts through the groove.

[0008] Furthermore, one end of the bolt is in a conical structure and is embedded in a groove and fixed in the middle position of the top of the supporting side plate, and the other end of the bolt passes from the bottom of the pressure plate to the top of the pressure plate and is threadedly connected to a nut, and the nut is arranged in the middle position of the top of the pressure plate. A plurality of ventilation holes are opened on the pressure plate, and the plurality of ventilation holes are distributed on the pressure plate in an array structure.

[0009] Furthermore, two sides of the bottom of the pressure plate are respectively in contact with the upper ends of the busbars at the two ends of the top of the pole group through nuts and bolts.

[0010] In addition to the above technical solutions, there is also a lead-acid battery with the pole group fixing structure, including a plastic shell, wherein the pole group fixing structure is tightly clamped in a pole group cavity inside the plastic shell, and the inner bottom surface of the pole group cavity is tightly bonded to the bottom surface of the fixed bottom plate of the pole group fixing structure.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model adopts the setting of the supporting side plate perpendicular to the middle position of the top surface of the fixed bottom plate, so that the pole plate is tightly assembled into a pole group under the joint action of the fixed bottom plate lifting and the supporting side plate supporting, which effectively increases the friction between the pole group and the plastic shell of the lead-acid battery and the supporting force of the lead connector, effectively avoids the phenomenon that the pole group tightly assembled by the AGM separator is very likely to have insufficient supporting force when encountering severe vibration, and effectively improves the stability of the pole group fixation. The pressing plate is horizontally set on the top of the supporting side plate and is parallel to the fixed bottom plate through nuts and bolts, so that the pole group can be more stably fixed between the pressing plate and the fixed bottom plate, effectively simplifies the fixing structure and assembly process of the pole group, greatly reduces the production cost, and ensures the efficiency of lead-acid battery production;

[0013] 2. The utility model provides flow guide holes of array structure on the supporting side plate, so that the pole group can maintain the fluidity of electrolyte when the electrolyte is injected, so that the pole group will not affect the original performance of the lead-acid battery under the support and fixation of the supporting side plate, and adopts the setting of bolts in a cone-shaped structure embedded in the middle position of the top of the supporting side plate, so that the pressure plate can be in the top middle of the pole group, so that the pole group is more firmly fixed under the support and fixation of the pressure plate and the supporting side plate, and the stability of the pole group fixation is effectively improved. Through the threaded connection setting of the bolts and nuts, the pressure plate can be adjusted with the height of the pole group, so that the fixing structure meets the fixing requirements of pole groups of different specifications, effectively improving the versatility and applicability of the fixing structure, and having the effect of promotion;

[0014] 3. The utility model provides an array-type vent hole on the pressing plate, so that the pole group can discharge excess air in time when it is assembled inside the lead-acid battery, so that the pole group can be installed more tightly inside the lead-acid battery. The bottom two sides of the pressing plate are arranged to contact the upper ends of the busbars at the two ends of the top of the pole group, so that the pole group can be more firmly fixed inside the plastic shell of the lead-acid battery, effectively avoiding the problem of damage to the lead-acid battery due to the up and down movement of the pole group due to loose fixation, and ensuring the vibration resistance of the lead-acid battery;

[0015] 4. The utility model adopts a method of tightly bonding the bottom surface of the fixed bottom plate with the inner bottom surface of the pole group cavity inside the plastic shell, so that the pole group can be tightly bonded to the plastic shell of the lead-acid battery from both the side and the bottom, so that the pole group can be more stably and firmly fixed in the plastic shell, effectively avoiding the problem of damage to the lead-acid battery due to the bottom of the pole group being in a suspended state and being easily displaced from the plastic shell when the lead-acid battery vibrates, thereby ensuring the vibration resistance of the lead-acid battery. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 for Figure 1 A side view structural schematic diagram of;

[0018] Figure 3 for Figure 1 A schematic diagram of a top view structure;

[0019] Figure 4 It is a structural schematic diagram of the fixing structure of the utility model;

[0020] Figure 5 for Figure 4 A side view structural schematic diagram of;

[0021] Figure 6 for Figure 4 A schematic diagram of a top view structure;

[0022] Figure 7 It is a structural schematic diagram of the supporting side plate of the utility model;

[0023] Figure 8 It is a schematic diagram of the side cross-section structure of the pole group of the utility model assembled into the plastic shell;

[0024] Fig. 9 for Figure 8 A schematic diagram of a top view structure;

[0025] Fig.10 It is a structural schematic diagram of the plastic shell of the utility model.

[0026] Among them: 1. Fixed bottom plate; 2. Support side plate; 3. Plate; 301. Pole; 4. Pole group; 401. Busbar; 5. Bolt; 6. Pressure plate; 7. Nut; 8. Guide hole; 9. Groove; 10. Vent; 11. Plastic shell; 12. Pole group cavity. DETAILED DESCRIPTION

[0027] The following examples are used to further illustrate the content of the utility model, but do not limit the application of the utility model. Embodiment 1:

[0028] See also Figure 1-Figure 10, a pole group fixing structure, comprising a fixed base plate 1 for lifting a pole group 4, a supporting side plate 2 for supporting a pole plate 3 is vertically fixed at the middle position of the upper surface of the fixed base plate 1, a plurality of pole plates 3 are stacked in parallel on both sides of the supporting side plate 2, and the plurality of pole plates 3 are tightly assembled through the supporting side plate 2 and the fixed base plate 1 to form a pole group 4, two adjacent pole plates 3 are stacked in reverse, and the top poles 301 of the two adjacent pole plates 3 stacked in reverse are respectively arranged at the two ends of the top of the pole group 4, and the two adjacent poles 301 at one end of the top of the pole group 4 are arranged alternately, a bolt 5 for connecting a pressure plate 6 is embedded in the middle position of the top of the supporting side plate 2, and a pressure plate 6 for fixing the pole group 4 is connected through the bolt 5, a nut 7 threadedly connected to the bolt 5 and used to adjust the position of the pressure plate 6 is arranged on the top of the pressure plate 6, and is horizontally arranged on the top of the supporting side plate 2 through the nut 7 and the bolt 5 and is also arranged parallel to the fixed base plate 1.

[0029] See also Figure 4-Figure 7 The supporting side plate 2 is provided with a plurality of guide holes 8 for electrolyte circulation, and the plurality of guide holes 8 are distributed on the supporting side plate 2 in an array structure. A groove 9 for fixing the bolt 5 is provided at the middle position of the top of the supporting side plate 2 and is embedded with the bolt 5 through the groove 9;

[0030] One end of the bolt 5 is in a conical structure and is embedded and fixed in the middle position of the top of the supporting side plate 2 through a groove 9, so that the bolt 5 with a conical structure is easier to facilitate the tight assembly of several pole plates 3. The other end of the bolt 5 passes from the bottom of the pressure plate 6 to the top of the pressure plate 6 and is threadedly connected with the nut 7. The nut 7 is set in the middle position of the top of the pressure plate 6, so that the pressure plate 6 can adjust its position when the nut 7 is screwed, thereby being able to meet the fixing requirements of pole groups 4 of different specifications.

[0031] See also Figure 1-Figure 3 and Figure 8-Figure 9 The two sides of the bottom of the pressure plate 6 are respectively against the upper ends of the busbars 401 at the two ends of the top of the pole group 4 through nuts 7 and bolts 5, so that the pole group 4 can be more stably and firmly installed inside the lead-acid battery under the resistance of the pressure plate 6;

[0032] The pressing plate 6 is provided with a plurality of vent holes 10 for exhausting air, and the plurality of vent holes 10 are distributed in an array structure on the pressing plate 6, so that the pole group 4 can discharge the excess air in time when it is assembled inside the lead-acid battery, so that the pole group 4 can be installed more tightly inside the lead-acid battery.

[0033] The working principle and use process of this embodiment are as follows: Figure 1-Figure 10 After the pole group fixing structure is assembled, the operator installs the pole group fixing structure as a whole in the pole group cavity 12 inside the plastic shell 11 of the lead-acid battery (such as Figure 8-Figure 10As shown, the pole group cavity 12 may be provided with a plurality of pole group cavities), specifically: the pole group fixing structure fixed with the pole group 4 is tightly clamped into the pole group cavity 12 inside the plastic shell 11 (the number of pole group cavities 12 is equal to the number of pole group fixing structures, and the pole group fixing structures are arranged one by one in correspondence with the pole group cavities 12), and the inner bottom surface of the pole group cavity 12 is tightly bonded to the bottom surface of the fixed bottom plate 1 of the pole group fixing structure by sulfuric acid-resistant glue, the purpose of which is to enable the pole group 4 to be tightly bonded to the plastic shell 11 of the lead-acid battery from both the side and the bottom, so as to The pole group 4 can be fixed more stably and firmly in the plastic shell 11, which solves the problem that the pole group 4 bottom is in a suspended state and is easily displaced from the plastic shell 11 when the lead-acid battery vibrates, thereby damaging the lead-acid battery. The vibration resistance of the lead-acid battery is ensured. At the same time, the pole group 4 tightly assembled with the AGM separator is easily insufficient in supporting force when encountering severe vibration, which effectively simplifies the fixing structure and assembly process of the pole group 4, greatly reduces the production cost, and ensures the efficiency of lead-acid battery production.

[0034] When the pole group 4 needs to be installed in the lead-acid battery, the operator first stacks several designed pole plates 3 in parallel and tightly on both sides of the supporting side plates 2 on the pole group fixing structure to form a pole group 4, so that the bottom of the pole plate 3 is in contact with the upper surface of the fixed bottom plate 1 on the pole group fixing structure, and the number of pole plates 3 on both sides of the supporting side plates 2 must be kept consistent to ensure the balance of the pole group fixing structure, and the two adjacent pole plates 3 must be stacked in reverse, and the top pole columns 301 of the two adjacent reverse stacked pole plates 3 are respectively arranged at the two ends of the top of the pole group 4, and the two adjacent pole columns 301 at one end of the top of the pole group 4 are alternately arranged, and then the pole columns 301 arranged alternately at the two ends of the top of the pole group 4 are arranged alternately. The columns 301 are welded to form the busbar 401, and then the nut 7 is screwed, so that the pressure plate 6 on the bolt 5 moves toward the fixed bottom plate 1 under the screwing of the nut 7, until the lower surface of the pressure plate 6 is against the busbar 401, and the screwing of the nut 7 is stopped. At this time, a plurality of pole plates 3 are tightly assembled under the fixed structure composed of the fixed bottom plate 1, the supporting side plate 2 and the pressure plate 6 to form a pole group 4, which can effectively increase the friction between the lead-acid battery plastic case 11 and the support force of the lead connector, effectively avoiding the phenomenon that the pole group 4 tightly assembled with the AGM separator is very likely to have insufficient support when encountering severe vibration, and effectively improving the stability of the pole group fixation;

[0035] When it is necessary to fix pole groups 4 at different heights, it is only necessary to screw the nut 7 to adjust the pressing plate 6 to a suitable position to fix pole groups 4 at different heights;

[0036] When it is necessary to fix pole groups 4 of different thicknesses, it is only necessary to adjust the width of the fixing base plate 1 to achieve the fixation of pole groups 4 of different thicknesses. Embodiment 2:

[0037] See also Figure 1-Figure 10 As another object of the utility model, a lead-acid battery is provided, including a plastic shell 11, in which the pole group fixing structure described above is provided, so that the pole group fixing structure with the pole group 4 fixed thereon is tightly clamped in the pole group cavity 12 inside the plastic shell 11, (such as Figure 8-Figure 10 As shown, a plurality of pole group cavities 12 may be provided), specifically: the pole group fixing structure is tightly inserted into the pole group cavity 12 inside the plastic shell 11 (as many pole group fixing structures as there are pole group cavities 12, and the pole group fixing structures are arranged in a one-to-one correspondence with the pole group cavities 12), and the inner bottom surface of the pole group cavity 12 is tightly bonded to the bottom surface of the fixed base plate 1 of the pole group fixing structure by sulfuric acid-resistant glue. Therefore, the lead-acid battery can obtain any beneficial effect of the pole group fixing structure described above, which will not be repeated here.

Claims

1. A pole group fixing structure, comprising a fixing base plate, characterized in that: A supporting side plate is vertically fixed at the middle position of the upper surface of the fixed bottom plate, and a plurality of pole plates are stacked in parallel on both sides of the supporting side plate. The plurality of pole plates are tightly assembled through the supporting side plate and the fixed bottom plate to form a pole group. A bolt is embedded in the middle position of the top of the supporting side plate and a pressure plate is connected through the bolt. A nut threadedly connected to the bolt is provided on the top of the pressure plate, and the nut and bolt are horizontally arranged on the top of the supporting side plate and at the same time arranged parallel to the fixed bottom plate.

2. A pole group fixing structure according to claim 1, characterized in that: The supporting side plate is provided with a plurality of guide holes, and the plurality of guide holes are distributed on the supporting side plate in an array structure.

3. A pole group fixing structure according to claim 2, characterized in that: A groove is provided at the middle position of the top of the supporting side plate and is embedded with bolts through the groove.

4. The pole group fixing structure according to claim 3, characterized in that: One end of the bolt is in a conical structure and is embedded and fixed in the middle position of the top of the supporting side plate through a groove.

5. The pole group fixing structure according to claim 4, characterized in that: The other end of the bolt passes from the bottom of the pressing plate to the top of the pressing plate and is threadedly connected with a nut, and the nut is arranged at the middle position of the top of the pressing plate.

6. The pole group fixing structure according to claim 5, characterized in that: The two sides of the bottom of the pressure plate are respectively against the upper ends of the busbars at the two ends of the top of the pole group through nuts and bolts.

7. The pole group fixing structure according to claim 1, characterized in that: The pressing plate is provided with a plurality of vent holes, and the plurality of vent holes are distributed on the pressing plate in an array structure.

8. The pole group fixing structure according to claim 1, characterized in that: The two adjacent pole plates are stacked in reverse, and the top poles of the two adjacent pole plates stacked in reverse are arranged at both ends of the top of the pole group, and the two adjacent poles at one end of the top of the pole group are arranged alternately.

9. A lead-acid battery, comprising a plastic case, characterized in that: It also includes a pole group fixing structure as described in any one of claims 1-8.

10. A lead-acid battery according to claim 9, characterized in that: The pole group fixing structure is tightly clamped in the pole group cavity inside the plastic shell, and the inner bottom surface of the pole group cavity is tightly bonded to the bottom surface of the fixed bottom plate of the pole group fixing structure.

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