Truck battery

Abstract

The utility model discloses a truck battery, belongs to the technical field of batteries, and aims to overcome the defect of low mounting efficiency of a shell of an existing truck battery. The battery comprises a shell and a plurality of battery cells installed in the shell, a first end of each battery cell is provided with an extending tab, the first end of each battery cell faces a first side wall of the shell, an adapter plate is arranged between the first end of each battery cell and the first side wall, a conducting bar is arranged on the adapter plate and connected with the corresponding tab, and the conducting bar is connected with the corresponding tab. The conducting bar is provided with a negative electrode connecting part which is bent towards the upper part of the battery cell, a battery management system is arranged above the battery cell, and the battery management system is detachably and conductively connected with the negative electrode connecting part through a negative electrode conductor. Therefore, the battery cell and the shell are convenient to assemble, and the connection between the battery management system and the conducting bar is not affected after the battery cell is assembled to the shell.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries and relates to a truck battery. Background Art

[0002] Due to size requirements, an existing lithium iron phosphate battery for starting and parking air conditioners for trucks needs to have the tabs of the battery cell facing the side walls of the shell, so that the conductive bar welded to the tabs is also on the side of the battery, and the battery management system is placed on the top of the battery. During installation, the battery management system needs to be connected to the conductive bar before the battery shell can be further installed, which reduces the efficiency of shell assembly and is not conducive to disassembly and assembly of the battery management system. Summary of the invention

[0003] The utility model proposes a truck battery in view of the problems existing in the prior art, aiming to overcome the defect of low shell installation efficiency of the existing truck battery.

[0004] The utility model is achieved in this way:

[0005] A truck battery comprises a shell and a plurality of battery cells installed in the shell, wherein the first end of the battery cell has a protruding pole ear, the first end of the battery cell faces the first side wall of the shell, an adapter plate is provided between the first end of the battery cell and the first side wall, a conductive bar is provided on the adapter plate and connected to the pole ear, the conductive bar has a negative electrode connecting portion bent toward the top of the battery cell, a battery management system is provided above the battery cell, and the battery management system is detachably conductively connected to the negative electrode connecting portion through a negative electrode conductor.

[0006] During installation, the conductive bus and battery cells can be assembled first and then assembled with the outer shell. At this time, the top of the outer shell is open, and the negative electrode conductor connected to the battery management system can be connected to the negative electrode connection part on the conductive bus, which is convenient for assembling the battery cells and the outer shell. After the battery cells are assembled to the outer shell, it will not affect the connection between the battery management system and the conductive bus.

[0007] Preferably, the conductive bar has a positive electrode connection portion bent toward the top of the battery cell, and the top wall of the shell is provided with a positive electrode column, which is detachably and electrically connected to the positive electrode connection portion through a positive electrode conductor. In this way, the positive electrode conductor can be installed after the battery cell is installed in the shell, so as to avoid the positive electrode conductor affecting the assembly efficiency of the battery cell and the shell.

[0008] Preferably, the battery management system is connected to the negative pole of the battery, the negative pole and the positive pole are respectively fixed to corresponding insulating seats, the upper surface of the insulating seat has a glue groove, and the insulating seat is fixed to the lower surface of the top wall of the shell by the glue on the glue groove. Compared with the prior art that fixes the insulating seat to the shell from the outside with screws, the glue fixing method can avoid the risk of short circuit caused by the positive pole and the negative pole being connected to the shell through screws, thereby improving the reliability of battery use.

[0009] Preferably, the positive electrode conductor includes a first conductor and a second conductor that are detachably connected to each other, and the connection position between the first conductor and the second conductor is exposed on the insulating seat. Avoid connecting the positive electrode column and the positive electrode connection part through a one-piece positive electrode conductor, and avoid turning over the battery when assembling the positive electrode column and the positive electrode conductor. During assembly, first fix the first conductor to the positive electrode connection part, fix the second conductor to the positive electrode column, and then fix the first conductor to the second conductor.

[0010] Preferably, a mounting seat is provided above the battery cell, the battery management system is fixed on the mounting seat, the mounting seat has a fixing column, and the connection position of the first conductor and the second conductor are fixed on the fixing column. In this way, the fixing of the first conductor and the second conductor is more stable.

[0011] Preferably, the conductive bar is provided with a voltage divider line, the adapter plate is provided with a first limiting groove and a first binding hole, the voltage divider line is embedded in the first limiting groove and fixed by a binding strap fixed on the first binding hole. The voltage divider line can transmit the voltage state of the relevant battery cell to the battery management system, the first limiting groove can preliminarily locate the position of the voltage divider line, and the binding strap can further fix the voltage divider line to prevent the voltage divider line from moving and causing damage to the insulation skin.

[0012] Preferably, the width of the first limiting groove is greater than the opening width of the first limiting groove, and the opening outer end wall of the first limiting groove is provided with a guiding inclined surface, so as to facilitate the installation of the voltage divider line, and after the voltage divider line is embedded in the first limiting groove, it can prevent the voltage divider line from being separated from the first limiting groove.

[0013] Preferably, an insulating plate covering the conductive bar is provided between the first side wall and the conductive bar, a second limiting groove is provided on the insulating plate, and second binding holes are provided on both sides of the second limiting groove, and the voltage divider is embedded in the second limiting groove and fixed by a binding fixed on the second binding hole. The insulating plate can cover the conductive bar and the tab inside to prevent the conductive bar and the tab from contacting the outer shell. The second limiting groove and the binding fixed on the insulating plate can further fix the voltage divider, so that more parts of the voltage divider can be fixed to prevent the insulation skin from being worn.

[0014] Preferably, a maintenance port is provided at the top of the housing corresponding to the battery management system, and a maintenance cover is provided on the maintenance port, so as to facilitate maintenance of the battery management system.

[0015] Preferably, the battery comprises two 12V battery pack modules, and the two battery pack modules are connected in series to form a 24V battery pack through a series soft copper bus, and there is a potting glue between the battery pack and the shell.

[0016] The beneficial effects of the utility model include: the conductive bar and the battery cell can be assembled first and then assembled with the outer shell, at which time the top of the outer shell is in an open state, and the negative electrode conductor connected to the battery management system can be connected to the negative electrode connection part on the conductive bar, which is convenient for assembling the battery cell and the outer shell, and the connection between the battery management system and the conductive bar will not be affected after the battery cell is assembled to the outer shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the structure of a battery;

[0018] Figure 2 Schematic diagram of the structure when the maintenance cover is opened for the battery;

[0019] Figure 3 is a schematic diagram of a first partial structure of a battery;

[0020] Figure 4 is a schematic diagram of a second partial structure of a battery;

[0021] Figure 5 for Figure 4 A magnified view of the part A in the middle;

[0022] Figure 6 It is a schematic diagram of the third partial structure of the battery.

[0023] Explanation of the accompanying drawings: 100, outer shell; 110, lower shell; 111, first side wall; 120, upper cover; 121, maintenance port; 130, insulating seat; 131, glue groove; 140, maintenance cover; 200, battery cell; 210, pole ear; 300, adapter plate; 310, conductive bar; 311, negative electrode connection part; 312, positive electrode connection part; 320, first limiting groove; 330, first binding hole; 400, battery management system; 410, negative electrode conductor; 510, negative electrode column; 520, positive electrode column; 530, positive electrode conductor; 531, first conductor; 532, second conductor; 600, mounting seat; 610, fixing column; 700, insulating plate; 710, second limiting groove; 720, second binding hole. DETAILED DESCRIPTION

[0024] The following will further describe the specific implementation of the utility model in combination with the accompanying drawings of the embodiments, so that the technical solution of the utility model is easier to understand and grasp. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0025] This embodiment provides a truck battery, specifically a lithium iron phosphate battery for starting and parking air conditioning in trucks, such as Figure 1-6 As shown, the battery includes a housing 100 and a plurality of cells 200 installed in the housing 100, wherein the first end of the cell 200 has a protruding tab 210, and the first end of the cell 200 faces the first side wall 111 of the housing 100, and a transfer plate 300 is provided between the first end of the cell 200 and the first side wall 111, and a conductive bar 310 is provided on the transfer plate 300 to connect with the tab 210, and the conductive bar 310 has a negative electrode connection portion 311 bent toward the top of the cell 200, and a battery management system 400 is provided above the cell 200, and the battery management system 400 is detachably and conductively connected to the negative electrode connection portion 311 through the negative electrode conductor 410. The housing 100 further includes a lower housing 110 and an upper cover 120, and the battery management system 400 is further connected to the negative electrode column 510.

[0026] During installation, the conductive bus 310 and the battery cell 200 can be assembled first and then assembled with the outer shell 100, that is, the battery cell 200 is placed in the lower shell 110. At this time, the upper cover 120 has not been installed, and the top of the outer shell 100 is open. The negative electrode conductor 410 connected to the battery management system 400 can be connected to the negative electrode connecting part 311 on the conductive bus 310, which is convenient for assembling the battery cell 200 and the outer shell 100. After the battery cell 200 is assembled to the outer shell 100, it will not affect the connection between the battery management system 400 and the conductive bus 310.

[0027] like Figure 5 As shown, the conductive bar 310 has a positive electrode connection portion 312 bent toward the top of the battery cell 200, and the top wall of the housing 100 is provided with a positive electrode column 520, and the positive electrode column 520 is detachably and conductively connected to the positive electrode connection portion 312 through a positive electrode conductor 530. In this way, the positive electrode conductor 530 can be installed after the battery cell 200 is installed in the housing 100, so as to avoid the positive electrode conductor 530 affecting the assembly efficiency of the battery cell 200 and the housing 100.

[0028] like Figure 3 , 6As shown, the negative pole 510 and the positive pole 520 are respectively fixed on the corresponding insulating seat 130, and the upper surface of the insulating seat 130 has a glue groove 131. The insulating seat 130 is fixed to the lower surface of the top wall of the shell 100, that is, fixed to the lower surface of the upper cover 120 through the adhesive on the glue groove 131. Compared with the prior art that fixes the insulating seat 130 to the shell 100 from the outside with screws, the adhesive fixing method can avoid the risk of short circuit caused by the positive pole 520 and the negative pole 510 being connected to the shell 100 through screws, thereby improving the reliability of battery use.

[0029] like Figure 5 As shown, the positive electrode conductor 530 includes a first conductor 531 and a second conductor 532 that are detachably connected to each other, and the connection position of the first conductor 531 and the second conductor 532 is exposed on the insulating seat 130. Avoid the positive electrode column 520 and the positive electrode connecting part 312 being connected by a one-piece positive electrode conductor 530, and avoid the need to flip the battery when assembling the positive electrode column 520 and the positive electrode conductor 530. During assembly, first fix the first conductor 531 to the positive electrode connecting part 312, fix the second conductor 532 on the positive electrode column 520, and then fix the first conductor 531 and the second conductor 532. In other optional embodiments, the positive electrode conductor 530 can also be an integral piece, directly connecting the positive electrode column 520 and the positive electrode connecting part 312. The top of the housing 100 is provided with a maintenance port 121 corresponding to the battery management system 400, and a maintenance cover 140 is provided on the maintenance port 121. The maintenance port 121 is located on the upper cover 120, and the maintenance cover 140 is fixed on the upper cover 120. This facilitates the maintenance of the battery management system 400. The connection position of the first conductor 531 and the second conductor 532 is preferably exposed at the position of the maintenance port 121, so that the first conductor 531 and the second conductor 532 can be further fixed from the maintenance port 121 after the upper cover 120 is fixed.

[0030] like Figure 5 , 6As shown, a mounting base 600 is provided above the battery cell 200, and the battery management system 400 is fixed on the mounting base 600. The mounting base 600 has a fixing column 610, and the connection position of the first conductor 531 and the second conductor 532 are fixed on the fixing column 610. The first conductor 531 and the second conductor 532 are fixed to the fixing column 610 by screws, so that the connection position of the first conductor 531 and the second conductor 532 is supported, and the fixation of the first conductor 531 and the second conductor 532 is more stable. There are two fixing columns 610, and the first conductor 531 and the second conductor 532 are provided with two fixing holes, and the two fixing holes are fixed to the two fixing columns 610 by two screws, respectively, so that the first conductor 531 and the second conductor 532 have more contact area and maintain good conductive connection. In other optional embodiments, the first conductor 531 and the second conductor 532 can also be fixed by bolts, and the lower end of the bolt extends out of the first conductor 531 for a longer length to support it on the mounting base 600.

[0031] like Figure 5 As shown, the conductive bar 310 is provided with a voltage divider line, the adapter plate 300 is provided with a first limiting groove 320 and a first binding hole 330, and the voltage divider line is embedded in the first limiting groove 320 and fixed by a binding strap fixed on the first binding hole 330. The voltage divider line can transmit the voltage state of the relevant battery cell 200 to the battery management system 400, the first limiting groove 320 can preliminarily locate the position of the voltage divider line, and the binding strap can further fix the voltage divider line to prevent the voltage divider line from moving and causing the insulation skin to be damaged.

[0032] Furthermore, the width of the first limiting groove 320 is greater than the opening width of the first limiting groove 320, and a guiding inclined surface is provided on the opening outer end wall of the first limiting groove 320. This facilitates the installation of the voltage divider line, and after the voltage divider line is embedded in the first limiting groove 320, it can prevent the voltage divider line from being separated from the first limiting groove 320.

[0033] like Figure 3 As shown, an insulating plate 700 covering the conductive bar 310 is provided between the first side wall 111 and the conductive bar 310, a second limiting groove 710 is provided on the insulating plate 700, and second binding holes 720 are provided on both sides of the second limiting groove 710. The voltage divider is embedded in the second limiting groove 710 and fixed by a binding fixed on the second binding hole 720. The insulating plate 700 can cover the conductive bar 310 and the tab 210 on the inner side to prevent the conductive bar 310 and the tab 210 from contacting the housing 100. The second limiting groove 710 and the binding fixed on the insulating plate 700 can further fix the voltage divider, so that more parts of the voltage divider can be fixed to prevent the insulation skin from being worn.

[0034] The battery includes two 12V battery pack modules, which are connected in series to form a 24V battery pack through a series of soft copper bars, and there is a potting glue between the battery pack and the shell 100. The potting glue increases the vibration resistance of the battery pack, avoids the failure of the battery pack caused by the breakage of the tab 210 of the battery 200, and also improves the waterproof ability of the battery and the heat dissipation ability of the battery, which can increase the battery life.

[0035] The conductive bar 310 is an aluminum bar, and the positive conductor 530 and the negative conductor 410 are both soft copper bars. The battery management system 400 has a Bluetooth module and is equipped with an intelligent interconnection function. It can be connected with a mobile app or APP to check the battery status and remotely control it anytime and anywhere, which can not only meet the vehicle starting requirements, but also monitor the power changes during long-term parking. It has a low power protection function, which automatically starts the power protection program when the power is low to ensure the normal operation of the truck starting function.

[0036] In the description of the present invention, it should be understood that the terms "center", "lateral", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

Claims

1. A truck battery, comprising a housing (100) and a plurality of battery cells (200) installed in the housing (100), wherein the first end of the battery cell (200) has a protruding pole ear (210), the first end of the battery cell (200) faces the first side wall (111) of the housing (100), an adapter plate (300) is provided between the first end of the battery cell (200) and the first side wall (111), and a conductive bar (310) is provided on the adapter plate (300) and connected to the pole ear (210), characterized in that: The conductive bar (310) has a negative electrode connecting portion (311) bent toward the top of the battery cell (200), a battery management system (400) is provided above the battery cell (200), and the battery management system (400) is detachably conductively connected to the negative electrode connecting portion (311) via a negative electrode conductor (410).

2. A truck battery according to claim 1, characterized in that: The conductive bar (310) has a positive electrode connection portion (312) bent toward the top of the battery cell (200), and the top wall of the housing (100) is provided with a positive electrode column (520), and the positive electrode column (520) is detachably conductively connected to the positive electrode connection portion (312) via a positive electrode conductor (530).

3. A truck battery according to claim 2, characterized in that: The battery management system is connected to the negative electrode post of the battery, the negative electrode post (510) and the positive electrode post (520) are respectively fixed on corresponding insulating seats (130), the upper surface of the insulating seat (130) has a glue groove (131), and the insulating seat (130) is fixed to the lower surface of the top wall of the shell (100) by means of glue on the glue groove (131).

4. A truck battery according to claim 3, characterized in that: The positive electrode conductor (530) comprises a first conductor (531) and a second conductor (532) which are detachably connected to each other, and the connection position between the first conductor (531) and the second conductor (532) is exposed on the insulating seat (130).

5. A truck battery according to claim 4, characterized in that: A mounting seat (600) is provided above the battery cell (200), the battery management system (400) is fixed on the mounting seat (600), the mounting seat (600) has a fixing column (610), and the connection positions of the first conductor (531) and the second conductor (532) are both fixed on the fixing column (610).

6. A truck battery according to claim 1, characterized in that: The conductive bar (310) is provided with a voltage dividing line, the adapter plate (300) is provided with a first limiting groove (320) and a first binding hole (330), and the voltage dividing line is embedded in the first limiting groove (320) and fixed by a binding strap fixed on the first binding hole (330).

7. A truck battery according to claim 6, characterized in that: The width of the first limiting groove (320) is greater than the opening width of the first limiting groove (320), and a guiding inclined surface is provided on the opening outer end wall of the first limiting groove (320).

8. A truck battery according to claim 6, characterized in that: An insulating plate (700) covering the conductive bar (310) is provided between the first side wall (111) and the conductive bar (310); a second limiting groove (710) is provided on the insulating plate (700); second binding holes (720) are provided on both sides of the second limiting groove (710); the voltage dividing line is embedded in the second limiting groove (710) and fixed by a binding strap fixed on the second binding hole (720).

9. A truck battery according to claim 1, characterized in that: A maintenance opening (121) is provided on the top of the housing (100) corresponding to the battery management system (400), and a maintenance cover (140) is provided on the maintenance opening (121).

10. A truck battery according to claim 1, characterized in that: The battery comprises two 12V battery pack modules, the two battery pack modules are connected in series via a series soft copper busbar to form a 24V battery pack, and there is potting glue between the battery pack and the housing (100).

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