Improved storage battery

Abstract

The invention discloses an improved storage battery which comprises a storage battery body, the storage battery body comprises a shell, an upper cover covering the shell, a plurality of unit cells and a plurality of busbars, the unit cells and the busbars are sequentially arranged in the shell at intervals, every two adjacent unit cells are connected through one busbar, and the busbars are installed in the upper cover. The upper cover and the shell are sealed through glue pouring; the upper end face of the upper cover is integrally connected with a plurality of limiting columns, each limiting column is provided with a column body penetrating hole, the projection of each limiting column is located on the busbar, and each limiting column is provided with an auxiliary part used for penetrating through the corresponding column body penetrating hole and sequentially puncturing the upper end face of the upper cover and the upper end face of the busbar. Therefore, the upper cover can be directly obtained through integral forming, the production process of the battery does not need to be changed, an auxiliary part is adopted to penetrate through the through hole of the column body until the auxiliary part extends into the busbar during detection, and the auxiliary part is limited by the limiting column, so that the auxiliary part cannot continuously go deep, and the situation that the storage battery is damaged due to the fact that the auxiliary part pierces the busbar is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of storage batteries, and more specifically to an improved storage battery. Background Art

[0002] At present, each adjacent single cell in the storage battery is connected through a bus bar respectively, and each bus bar is sealed in the upper cover of the storage battery by glue to ensure efficient transmission of current inside the storage battery and reduce the weight of the storage battery; however, when detecting a traditional storage battery, it is necessary to open the upper cover to detect the internal parameters, which poses a risk of acid solution exposure.

[0003] Based on this, the Chinese invention patent "A Faulty Single Cell Screening Structure and Method for a Power Storage Battery" with the publication number CN111672775B discloses that blind holes are drilled directly above the center of each bus bar by a pistol drill, self-tapping screws are screwed into each blind hole, and the bottom of each self-tapping screw pierces the top surface of the bus bar and extends downward by 1 mm - 2 mm. At the same time, bolts are screwed into the tops of the positive and negative terminals of the storage battery respectively, and then the acquisition wire clips of a discharge meter are sequentially added to each self-tapping screw, and the bolts on the positive and negative terminals of the storage battery are respectively connected to the discharge meter for discharging, so as to detect the single cell voltage and thus detect whether the storage battery has a fault; however, when detecting with the above structure, since there is no limit to the depth of the self-tapping screw screwed into the bus bar, once the self-tapping screw pierces the bus bar, the storage battery will be damaged, resulting in high requirements for manual operation, large operation risks, time-consuming and laborious, and the detection process requires drilling holes in the upper cover, the operation is relatively troublesome, and at the same time, due to the need to drill holes in the upper cover, this detection is only applicable to detecting defective products and cannot achieve extensive and real-time detection.

[0004] In view of this, the present application conducts in-depth research on this basis, and thus this case is generated. Summary of the Invention

[0005] The purpose of the present invention is to provide an improved storage battery, which can not only perform internal single cell detection and control on the storage battery body at the time of factory shipment, with simple and convenient operation, time-saving and labor-saving, but also avoid the risk of piercing the bus bar during use, and can be widely mass-produced.

[0006] To achieve the above object, the solution of the present invention is: An improved battery includes a battery body, the battery body includes a housing, an upper cover covering the housing, a plurality of single cells arranged at intervals in the housing in sequence, and a plurality of busbars. Each two adjacent single cells are connected by the busbars, and each busbar is respectively installed in the upper cover. The upper cover and the housing are sealed by potting; a plurality of limiting columns are integrally connected to the upper end surface of the upper cover, and column perforations are respectively formed in each limiting column. The projections of each limiting column are respectively located on the busbar. Among them, each limiting column is respectively provided with an auxiliary member for inserting through the column perforation and sequentially piercing the upper end surfaces of the upper cover and the busbar.

[0007] A circuit board is installed on the upper end surface of the upper cover, and each limiting column is distributed within the range of the circuit board.

[0008] First temperature sensors for detecting temperature are respectively installed on the circuit board at positions adjacent to each limiting column.

[0009] Two second temperature sensors are also installed on the circuit board. The positive terminal and the negative terminal of the battery body respectively extend out of the upper cover through pole columns, and auxiliary conductors are respectively installed on the two pole columns. One ends of the two auxiliary conductors are respectively adjacent to the corresponding second temperature sensors.

[0010] A control chip is integrated on the circuit board. The acquisition ends of each first temperature sensor and the acquisition ends of the two second temperature sensors are respectively connected to the signal input end of the control chip, and the control chip is in communication connection with the detection platform; or, a control chip and a display screen are integrated on the circuit board. The acquisition ends of each first temperature sensor and the acquisition ends of the two second temperature sensors are respectively connected to the signal input end of the control chip, and the control chip and the display screen are electrically connected bidirectionally.

[0011] Upper cover grooves are respectively formed on the opposite sides of the upper cover corresponding to each busbar. Each upper cover groove and each busbar are respectively adapted one-to-one, and the thickness between the groove bottom surface of each upper cover groove and the upper end surface of the upper cover is the smallest.

[0012] A detection point is set at a position corresponding to between two adjacent single cells for each of the busbars. Each of the limiting posts and each of the busbars are arranged in a one-to-one correspondence, and each of the limiting posts is respectively projected at the corresponding detection point; or, at least three of the single cells arranged in sequence along the length direction of the upper cover in each of the single cells are set as a group of single cells, and the busbar adjacent to the middle position between each of the single cells in the group of single cells is used as the mounting busbar. A detection point is provided on each of the mounting busbars, and each of the limiting posts is respectively projected at the corresponding detection point; or, each of the busbars has one or two detection points, a position corresponding to adjacent to the single cell is set as the detection point for each of the busbars, and three detection points are provided in total on three adjacent single cells corresponding to every two of the busbars. The projections of each of the limiting posts are respectively located at the corresponding detection points.

[0013] Each of the auxiliary members includes a connecting body and a head integrally connected. The diameter of each of the heads is larger than the diameter of the column perforation, and each of the connecting bodies is respectively installed and fitted with the corresponding column perforation.

[0014] The free end of the connecting body of each of the auxiliary members is a tip.

[0015] Each of the auxiliary members is a rod-shaped structure made of a heat-conducting and / or electrically-conducting material.

[0016] After adopting the above structure, the present invention has the following beneficial effects: 1. In the present invention, a limiting post is integrally connected to the upper cover, that is, the upper cover provided with the limiting post during the production of the storage battery can be directly obtained by integral molding without changing the production process of the battery. And since during the assembly of a conventional storage battery, the upper cover together with each busbar is sealed on the housing through potting, at this time, the inside of the upper cover is filled with sealing glue. Then, the auxiliary member is inserted into the perforation of the limiting post, and then penetrates through the upper cover and the sealing glue in sequence and extends onto the busbar until the auxiliary member is limited by the limiting post and cannot continue to penetrate, so as to prevent the auxiliary member from piercing the busbar and causing damage to the storage battery; in this way, when detecting the storage battery body, it can be detected by a detection instrument, and the detection operation is simple, convenient, time-saving and labor-saving. At the same time, since the upper cover of the storage battery body already has built-in detection points (i.e., at the limiting post) when leaving the factory, the present invention is widely applicable to the factory inspection and conventional inspection of the storage battery body.

[0017] 2. The present invention adopts the busbar to be embedded in the groove of the upper cover, and is set such that the thickness between the bottom of the groove of the upper cover and the upper end cover of the upper cover is the thinnest to facilitate the piercing of the auxiliary member and further improve the convenience of the operation.

[0018] 3. The present invention uses a circuit board and temperature sensors. Each temperature sensor is installed on the circuit board according to the position of the detection point. The heat of the busbar is transferred to the auxiliary part through heat transfer, and then the adjacent temperature sensor is used to detect the heat transferred by the auxiliary part, so as to obtain the temperature on the corresponding busbar, that is, the temperature parameter between the corresponding single cell or multiple single cells in the battery body, thereby understanding the corresponding situation of the battery body. At the same time, the present invention is widely applicable to mass-produced products with circuit boards installed in the battery body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a schematic structural diagram of the battery of the present invention.

[0020] Figure 2 FIG. is a top view of the battery of the present invention.

[0021] Figure 3 is Figure 2 a cross-sectional view taken along D-D in

[0022] Figure 4 is Figure 3 a cross-sectional view taken along E-E in

[0023] Figure 5 FIG. is a schematic structural diagram of the upper cover of the battery of the present invention.

[0024] Figure 6 FIG. is a schematic structural diagram of the upper cover of the battery of the present invention from another angle.

[0025] In the figure: 100 - battery body; 1 - housing; 11 - terminal post; 2 - upper cover; 21 - upper cover groove; 22 - mounting groove; 3 - single cell; 4 - busbar; 5 - limiting post; 51 - column perforation; 52 - spring; 61 - auxiliary part; 62 - auxiliary guide part; 7 - circuit board; 71 - insertion hole; 81 - first temperature sensor; 82 - second temperature sensor; 9 - sealant. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0027] An improved battery, which is improved on the basis of a conventional battery. In this embodiment, the battery can be a power battery such as a lead-acid battery.

[0028] Such as Figures 1-6As shown in the figure, the improved battery includes a battery body 100, which includes a housing 1, an upper cover 2, a plurality of single cells 3 and a plurality of busbars 4. The interior of the housing 1 is divided into multiple single cells 3 by partitions. Each single cell 3 contains a plate group inside, and adjacent plate groups are connected by busbars 4. Each busbar 4 is located within the upper cover 2 and is sealed within the upper cover 2 by a sealing glue 9. The upper cover 2 and the housing 1 are sealed by potting, which is a conventional sealing method during battery production, so it will not be elaborated here.

[0029] For ease of description, the state when the battery is in normal use is taken as the reference direction of the present invention. The side of the upper cover 2 facing away from the housing 1 is taken as the upper end face, and the other side of the upper cover 2 is the opposite side.

[0030] The improvement of the present invention lies in that, as Figures 3-6 shown, a plurality of limit posts 5 are integrally connected to the upper end face of the above-mentioned upper cover 2. Each limit post 5 is respectively provided with a column perforation 51. That is to say, each limit post 5 and the upper cover 2 are integrally formed, that is, when the upper cover 2 is produced, it already has the limit posts 5 with column perforations 51. The upper cover 2 with such limit posts 5 can be obtained by die forming; each column perforation 51 is a hollow structure with an upper opening, and the lower openings of each column perforation 51 are respectively received by the upper end face of the upper cover 2, and the projections of each limit post 5 are respectively located on the corresponding busbar 4, and each limit post 5 is provided with an auxiliary part 61. Among them, the auxiliary part 61 is used to penetrate into the column perforation 51 and pierce the upper end faces of the upper cover 2 and the busbar 4 in sequence and extend into the busbar 4; in this way, the direct connection of the auxiliary part 61 and the busbar 4 is adopted to detect the temperature and / or voltage value of the busbar 4, so as to detect the parameters between independent single cells or at least two adjacent single cells.

[0031] As a preferred method, springs 52 are respectively inserted into the column perforations 51 of each limit post 5 to protect the column perforations 51 and the auxiliary parts 61 when each auxiliary part 61 penetrates into the column perforations 51, and at the same time facilitate the operation of the auxiliary parts 61.

[0032] Furthermore, as Figures 1-4 shown, the projections of the limit posts 5 on the battery body 100 respectively fall on the busbars 4. Taking the positions where the projections of each limit post 5 are respectively on the busbar 4 as the detection points, the detection points in this embodiment can be arranged according to actual detection requirements. The positions of the detection points commonly used during detection are described below, but this embodiment is not limited to the following positions.

[0033] 1. One or two detection points are provided on each bus bar 4. Specifically, detection points are provided on each bus bar 4 at positions corresponding to the single cells 3, and each detection point is adjacent to the corresponding single cell 3. Among them, there are three detection points on the three single cells 3 corresponding to the two bus bars 4. One can choose to set two detection points on one bus bar 4 and one detection point on the other bus bar 4 according to actual situations. Among them, the projections of the limiting posts 5 are respectively located at the corresponding detection points, so that when the auxiliary part 61 penetrates, it can fall to the detection point. In this way, parameters such as the temperature or voltage of the bus bar 4 adjacent to the corresponding single cell 3 can be detected, that is, the parameters of each single cell 3 can be detected to monitor each single cell 3.

[0034] 2. One detection point is provided on each bus bar 4. The detection point is located at the position on each bus bar 4 corresponding to the middle of two adjacent single cells 3. Preferably, the detection point is located at the middle position between two adjacent single cells 3. The vertical projections of the limiting posts 5 are respectively located at the corresponding detection points, that is, each limiting post 5 corresponds to a detection point. In this way, parameters such as the temperature or voltage of each bus bar 4 can be detected, that is, the parameters between two adjacent single cells 3 can be detected to monitor two adjacent single cells 3. For example, when monitoring the voltage, if the detected voltage is within the set range, it can be judged that the voltage parameters of the two adjacent single cells 3 are normal.

[0035] For example, taking the battery body 100 having six single cells 3 as an example for illustration, there are five bus bars 4 for the six single cells. Each bus bar 4 is arranged in the arrangement mode on the upper cover of a conventional battery. A detection point is provided at the middle position on each bus bar 4 corresponding to the middle of two single cells 3, and this detection point exactly corresponds to the column perforation 51 of the limiting post 5.

[0036] 3. The detection points on each bus bar 4 are not the same. Each bus bar has one detection point or no detection point. Specifically, taking at least three single cells 3 as a group, in this embodiment, three single cells 3 are taken as a group. Among them, along the length direction of the upper cover 2, every three sequentially arranged single cells are set as a group, and the bus bar adjacent to the middle position among all the single cells in the single cell group is the installed bus bar. A detection point is provided on each installed bus bar, and no detection point is provided on the non-installed bus bars among the bus bars. Preferably, the detection point on each installed bus bar can be located at the middle position between the single cells. Among them, the projection of each limiting post 5 is respectively located at the detection point. In this way, parameters such as the temperature or voltage of each installed bus bar can be detected, that is, the parameters of each single cell group can be detected to monitor each single cell group. For example, when monitoring the voltage, if the detected voltage is within the set range, it can be judged that the voltage parameters of the single cell group are normal. If the detected voltage exceeds the set range, it can be judged that there is a fault in the single cells in this single cell group.

[0037] As a preferred embodiment, upper cover grooves 21 are respectively formed on the opposite sides of the upper cover 2 corresponding to the positions of the respective busbars 4. Each upper cover groove 21 and each busbar 4 are respectively adapted to each other one by one, that is, each busbar 4 is fixedly installed in the corresponding upper cover groove 21. Among them, the thickness between the bottom of each upper cover groove 21 and the upper end surface of the upper cover 2 is the same, and this thickness is the minimum thickness of the upper cover 2. That is, the position of the bottom of the upper cover groove 21 is the thinnest position of the upper cover 2, so as to facilitate the subsequent auxiliary member 61 to pierce the upper cover 2 and extend into the busbar 4.

[0038] Furthermore, in the above-mentioned battery body 100, each auxiliary member 61 includes a connecting body and a head integrally connected. The diameter of each head is larger than the diameter of the cylindrical perforation 51 of the limiting post 5, and each connecting body is installed and fitted with the corresponding cylindrical perforation 51; preferably, the free end of each auxiliary member 61 is a tip, so as to facilitate piercing the upper cover 2 and the busbar 4. In this way, when the auxiliary member 61 is inserted into the corresponding cylindrical perforation 51, its connecting body penetrates into the cylindrical perforation 51, and successively pierces the thickness of the upper cover 2 and the upper end surface of the busbar 4, and extends into the busbar 4 by 1-2.5 mm. At this time, the head abuts against the upper end surface of the limiting post 5 to limit the further downward movement of the auxiliary member 61, so as to prevent the auxiliary member 61 from piercing the busbar and damaging the battery.

[0039] In this embodiment, each auxiliary member 61 is a rod-shaped structure made of a heat-conducting and electrically-conductive material. Each auxiliary member 61 can be an existing conventional assembly part such as a screw, a self-tapping screw or a nail, etc. Preferably, the auxiliary member 61 in this embodiment is a self-tapping screw.

[0040] As Figures 1-2 shown and as Figures 5-6 shown, a circuit board 7 can be installed on the upper end surface of the above-mentioned upper cover 2. The circuit board 7 is respectively provided with insertion holes 71 corresponding to the positions of the respective limiting posts 5. Preferably, an installation groove 22 is formed on the upper end surface of the upper cover 2. The shape and size of the installation groove 22 are respectively adapted to the shape and size of the circuit board 7. The circuit board 7 is embedded in the installation groove 22, and each limiting post 5 is distributed at the bottom of the installation groove 22, that is, the distribution range of the circuit board 7 corresponds to all the busbars 4; among them, the circuit board 7 can be installed in the installation groove 22 by conventional installation methods such as welding, embedding or bolt installation. It should be noted that single-cell interfaces are respectively provided on the upper cover 2 corresponding to each single cell 3. When the circuit board 7 is installed, each single-cell interface is respectively exposed outside. Among them, the setting of the single-cell interface is a conventional operation of the upper cover 2, so it will not be elaborated here.

[0041] Furthermore, a plurality of first temperature sensors 81 are installed on the circuit board 7 described above. Each first temperature sensor 81 is respectively arranged in a one-to-one correspondence with each limit post 5. Each first temperature sensor 81 is respectively adjacent to the corresponding limit post 5 to detect the temperature of the auxiliary member 61 on the adjacent limit post 5. In this embodiment, each first temperature sensor 81 can be respectively located on the upper side surface of the circuit board 7 or on the lower side surface of the circuit board 7. The specific position is set according to the actual situation and is not limited herein.

[0042] Furthermore, two second temperature sensors 82 are also installed on the circuit board 7. The positive terminal and the negative terminal of the battery body 100 respectively extend out of the upper cover 2 through the pole posts 11. Here, the structures and installation structures of the positive terminal, the negative terminal, and the pole posts 11 of the battery body 100 are respectively the structures and installation structures of a conventional battery, so they will not be described in detail. Among them, the two second temperature sensors 82 are respectively arranged in a one-to-one correspondence with the two pole posts 11. The two second temperature sensors 82 are respectively adjacent to the corresponding pole posts 11. Auxiliary conductors 62 are respectively installed on the two pole posts 11. The two auxiliary conductors 62 are respectively sleeved outside the corresponding pole posts 11 through bolts, and one ends of the two auxiliary conductors 62 are respectively close to the corresponding second sensors 82. In this way, through the heat transfer of the auxiliary conductors 62, the temperatures at the positive terminal and the negative terminal are detected.

[0043] Furthermore, the two auxiliary conductors 62 both include an annular part, a connecting part, and a transmitting part that are integrally connected in sequence. The two auxiliary conductors 62 are both in an L shape, and the installation structures of the two auxiliary conductors 62 are the same. Therefore, one of them is taken as an example for description. The annular part of the auxiliary conductor 62 is sleeved outside the bolt, that is, the annular part is stacked on the end surface of the corresponding pole post 11, so that the auxiliary conductor 62 can be clamped between the head of the bolt and the end surface of the pole post 11 during installation. The connecting part straddles above the circuit board 7 and corresponds to the second temperature sensor 82. The transmitting part closely abuts or is in contact with the second temperature sensor 82. In this embodiment, the two auxiliary conductors 62 are both made of heat-conducting and electrically-conducting materials, and the two auxiliary conductors 62 can both be made of metal materials such as stainless steel and copper. In this way, during detection, the positive terminal and the negative terminal respectively transfer heat through the corresponding pole posts 11. Then, since the two auxiliary conductors 62 are respectively in contact with the corresponding pole posts 11, the two pole posts 11 respectively transfer heat to the corresponding auxiliary conductors 62. Then, the two second temperature sensors 82 respectively detect the temperatures on the corresponding auxiliary conductors 62, so as to obtain the temperature data at the negative terminal and the positive terminal of the battery body 100.

[0044] In this embodiment, both of the two pole columns 11 are conventional pole columns existing in the prior art and applicable to storage batteries. In this embodiment, both of the two pole columns 11 are threaded pole columns; and each of the first temperature sensors 81 and the two second temperature sensors 82 are all conventional temperature sensors existing in the prior art, such as NTC thermistors or patch temperature sensors.

[0045] Furthermore, the above-mentioned circuit board 7 is integrated with a control chip. Each of the first temperature sensors 81 and the two second temperature sensors 82 are respectively electrically connected to the sampling terminals of the control chip. The control chip can be communicatively connected to the detection platform by means of wire connection or wireless connection, and is used to transmit the temperature data detected by each temperature sensor to the detection platform respectively, so as to facilitate the detection personnel to view the temperature data in real time during the detection of the storage battery body; among them, the wireless connection method can be a conventional communication connection method existing in the prior art, which will not be elaborated here; in this embodiment, the above-mentioned circuit board integrated with a control chip adopts a conventional circuit board existing in the prior art. Preferably, a display screen is also integrated on the circuit board 7. The display screen is bidirectionally electrically connected to the control chip and is used to display the data detected at the detection points described below, such as temperature data.

[0046] It should be noted that the above-mentioned storage battery body 100 can also detect voltage parameters, that is, each of the above-mentioned position-limiting columns 5 It should be noted that in the produced upper cover 2, the column perforations 51 on each position-limiting column 5 and the corresponding bus bar 4 are blocked from each other by the upper cover 2; among them, in the storage battery body 100, the upper cover 2 is filled with a sealing glue 9, that is, there is also a sealing glue 9 between the bottom of the upper cover groove 21 on the upper cover 2 and the bus bar 4, which together play the role of sealing and insulation.

[0047] For an improved storage battery of the present invention, before factory inspection is required, before inspection is required after sale, or after the circuit board is installed as a mass-produced product, an auxiliary part (such as a self-tapping screw) is screwed into the column perforation 51, pierces through the upper cover 2 and enters the upper cover groove 21, and then continues to be screwed into the sealing glue 9 until the tip of the self-tapping screw is at the detection point of the bus bar 4, and continues to be screwed until the head of the self-tapping screw is restricted by the upper end surface of the position-limiting column 5. At this time, the tip of the self-tapping screw penetrates 1.5 mm into the bus bar 4. Then, the temperature data of the corresponding detection points and the positive and negative terminals can be obtained through each temperature sensor respectively. Then, the acquisition wire clips on the conventional discharger are clamped onto the respective self-tapping screws, and the bolts on the positive and negative terminals are respectively connected to the discharger for discharging, and the discharge voltage and discharge time of the discharger are adjusted, so as to obtain the voltage data of each detection point, and thus detect the voltage and temperature data between each single cell or at least two single cells in the storage battery body 100 to determine whether the storage battery body 100 is abnormal. It should be noted that the above-mentioned voltage detection method can also be detected by other conventional methods existing in the prior art, and is not limited to the above method.

[0048] Compared with the prior art, in an improved battery of the present invention, since the produced upper cover 2 itself has a plurality of limiting posts 5, there is no need to drill holes in the battery body 100 after assembly. Moreover, the upper cover 2 is relatively simple and convenient to process and can be mass-produced. At the same time, since the upper cover 2 and the housing 1 are sealed with a sealing glue 9 before detection, and the bottom of each limiting post 2 is the upper end surface of the upper cover 2, it also avoids the leakage of the sealing glue during the glue filling and sealing of the upper cover 2 and the housing, which affects the insulation and sealing performance inside the upper cover 2. And, considering that the vertical projections of the respective limiting posts 5 can respectively fall on the detection points of the bus bar 4, when the battery body 100 needs to be detected, the tester screws the auxiliary part 6 into the upper cover 2 from the limiting post 5 and pierces the detection points of the bus bar 4, so as to detect the corresponding single cell or multiple single cells. The operation is simple and convenient, and there is no need to consider the position of the drilled hole corresponding to the detection point, nor to worry about the situation that the bus bar is not hit during drilling. And, due to the limitation of the limiting post 5, the auxiliary part 6 can be adapted to more and wider sizes and can be directly screwed in without worrying about piercing the bus bar.

[0049] The above are only the preferred embodiments of the present embodiment. All equivalent changes and modifications made within the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims

1. An improved storage battery, comprising a storage battery body, the storage battery body comprising a shell, an upper cover covering the shell, a plurality of cells sequentially arranged in the shell and a plurality of bus bars, each two adjacent cells are connected by the bus bar, each bus bar is respectively installed in the upper cover, and the upper cover and the shell are sealed by glue injection; characterized in that: The upper end surface of the upper cover is integrally connected with a plurality of limiting columns, each of which is provided with a column through hole, and the projection of each limiting column is located on the bus, wherein each limiting column is respectively equipped with an auxiliary part for inserting into the column through hole and piercing the upper end surface of the upper cover and the bus in turn.

2. An improved storage battery according to claim 1, characterized in that: A circuit board is installed on the upper end surface of the upper cover, and each of the limiting posts is distributed within the range of the circuit board.

3. An improved storage battery according to claim 2, characterized in that: First temperature sensors for detecting temperature are respectively installed at positions adjacent to the limiting pillars on the circuit board.

4. An improved storage battery according to claim 3, characterized in that: Two second temperature sensors are also installed on the circuit board. The positive terminal and the negative terminal of the battery body extend out of the upper cover through poles respectively. Auxiliary guides are respectively installed on the two poles. One end of the two auxiliary guides is respectively adjacent to the corresponding second temperature sensors.

5. An improved storage battery according to claim 4, characterized in that: A control chip is integrated on the circuit board, and the acquisition end of each of the first temperature sensors and the acquisition ends of the two second temperature sensors are respectively connected to the signal input end of the control chip, and the control chip is communicatively connected to the detection platform; or, a control chip and a display screen are integrated on the circuit board, and the acquisition end of each of the first temperature sensors and the acquisition ends of the two second temperature sensors are respectively connected to the signal input end of the control chip, and the control chip and the display screen are bidirectionally electrically connected.

6. An improved storage battery according to any one of claims 1 to 5, characterized in that: Upper cover grooves are respectively provided on opposite sides of the upper cover corresponding to the positions of the bus bars, and each upper cover groove is matched with each bus bar in a one-to-one manner, wherein the thickness between the bottom surface of each upper cover groove and the upper end surface of the upper cover is the smallest.

7. An improved storage battery according to any one of claims 1 to 5, characterized in that: Each bus is set as a detection point at a position corresponding to two adjacent cells, each limiting post and each bus is respectively arranged one-to-one, and each limiting post is projected at the corresponding detection point; or, at least three cells in each cell are arranged in sequence along the length direction of the upper cover as a group of cells, and the bus adjacent to the middle position between each cell in the cell group is used as an installation bus, each installation bus is provided with a detection point, and each limiting post is projected at the corresponding detection point; or, each bus has 1 or 2 detection points, and each bus is set as the detection point corresponding to the position adjacent to the cell, and three detection points are provided on every two buses corresponding to three adjacent cells in sequence, and the projection of each limiting post is respectively located at the corresponding detection point.

8. An improved storage battery according to any one of claims 1 to 5, characterized in that: Each of the auxiliary components comprises a connector and a head which are integrally connected, the diameter of each of the heads is larger than the diameter of the column through-hole, and each of the connectors is respectively installed and matched with the corresponding column through-hole.

9. An improved storage battery according to claim 8, characterized in that: The free ends of the connectors of the auxiliary components are pointed.

10. An improved storage battery according to claim 8, characterized in that: Each of the auxiliary parts is a rod-shaped structure made of heat-conducting and / or electrically-conducting material.

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