Explosion-proof storage battery power supply device

Abstract

The utility model discloses an explosion-proof storage battery power supply device which comprises a box body, at least four groups of lead-acid storage batteries are arranged in the box body in an aligned mode, and each group of lead-acid storage batteries comprises two positive pole terminals, two negative pole terminals and a liquid injection hole. The two positive pole terminals and the two negative pole terminals of two adjacent groups of lead-acid storage batteries are connected in series through a pair of connecting wires, and the connecting wires are fixed with the two positive pole terminals and the two negative pole terminals through connecting wire bottom supports and sealant. According to the utility model, the connection and lead-out wires among the storage batteries adopt a double-wire system, and each wire can independently bear loop current, so that shunting and heat dissipation can be better realized, the discharge current is large, and the risk of explosion of the power supply device is reduced. Meanwhile, when the connecting line is matched with the storage battery pole, the connecting line and the pole are firmly welded into a whole in a welding mode, the connecting line bottom support is arranged, filling is carried out in a glue filling mode, the sealing state of the position is guaranteed, and the creepage and electric leakage phenomena are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery, especially relates to a kind of explosion-proof battery power device. BACKGROUND

[0002] Forklift is used in more and more fields and places as a kind of logistics handling, loading and unloading, stacking machinery.However, in chemical industry, coal, cement and flour processing and many other industries and units, combustible dust mixed with air may be generated during production, filling and storage and transportation operations, forming explosive mixture, so that these areas become areas where ordinary forklifts cannot enter.It is necessary to use forklifts carrying special power devices suitable for dust environment to ensure safe operation.The traditional power device is formed by connecting several lead-acid batteries with single pole column in series, and the discharge current carried by the single pole column is small, and small current discharge for a long time is easy to over-discharge.If the single pole column is damaged, the whole power device may fail.In addition, when connecting the batteries, the poor contact between the connecting wire and the pole column may cause creepage, and in the dust environment similar to Zone 1 and Zone 21, explosion hazards may occur. SUMMARY

[0003] To solve the technical problems mentioned in the background art, the utility model provides an explosion-proof battery power device.

[0004] The utility model adopts the following technical scheme: an explosion-proof battery power device, comprising a box body, a box cover, one side of the box cover is connected to one side of the top of the box body through a hinge, the other side of the box cover is provided with a lock body, at least four groups of lead-acid batteries are aligned and discharged in the box body, each group of lead-acid batteries comprises two positive pole column terminals, two negative pole column terminals and at least three liquid injection holes, an exhaust plug with an internal safety valve is arranged at the top of each liquid injection hole, two positive pole column terminals and two negative pole column terminals of two adjacent groups of lead-acid batteries are connected in series through a pair of connecting wires, and the connecting wires are fixed between the two positive pole column terminals and the two negative pole column terminals through a connecting wire bottom support and sealing glue, four cable sealing joints are arranged on the outside of the box cover, one end of four positive and negative lead-out wires is connected to the two positive pole column terminals and the two negative pole column terminals of the lead-acid batteries, and the other end is connected to the four cable sealing joints.

[0005] Further, the lead-acid battery further comprises an electrolyte tank, a battery cover is arranged on the top of the electrolyte tank, a plurality of horizontally arranged tank bodies are arranged in the electrolyte tank, the injection holes are correspondingly arranged on the upper surface of the battery cover and correspond to the positions of each tank body, a pole group is arranged in each tank body, the pole group comprises a positive pole group and a negative pole group, the positive pole group comprises a plurality of groups of parallelly arranged positive plates, the top ends of the plurality of groups of positive plates are connected together by a positive busbar, the negative pole group comprises a plurality of groups of parallelly arranged negative plates, the plurality of groups of negative plates are connected together by a negative busbar, a separator is arranged between the positive plates and the negative plates in each group of the pole group, two positive pole terminals are arranged at the top ends of the outermost positive busbars, two negative pole terminals are oppositely arranged at the top ends of the negative busbars on the other side, and a protection plate is further arranged above the positive busbar and the negative busbar, and a plurality of heat dissipation holes are arranged on the protection plate.

[0006] Further, a plurality of ventilation windows are arranged on the box cover, and a plurality of ventilation holes are arranged around the box body.

[0007] Further, a handle is arranged on the top of the box cover.

[0008] Further, the inner wall of the electrolyte tank of the lead-acid battery is coated with an acid-resistant covering layer, the acid-resistant covering layer has a thickness of 0.5-0.8 mm, and the outer wall has a thickness of 0.1-0.3 mm.

[0009] Further, an insulating ventilation baffle is arranged between the inside of the box body and the lead-acid battery.

[0010] Further, a grounding wire is fixedly arranged on the box cover by means of a compression bolt.

[0011] Compared with the prior art, the advantages of the utility model lie in that:

[0012] The connecting and leading-out wires between the batteries in the novel power supply device adopt a double-wire system, each wire can independently bear the loop current, the power supply device can better distribute and dissipate heat, the discharge current is large, and the risk of explosion of the power supply device is reduced. Meanwhile, when the connecting wire and the pole are matched, the connecting wire and the pole are firmly welded together by welding, a connecting wire bottom support is arranged, and the position is filled by means of glue pouring, so that the sealing state of the position is ensured, and the phenomenon of creeping and electric leakage is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a top view of the explosion-proof battery power supply device of the utility model;

[0014] Figure 2 It is a top view of the explosion-proof battery power supply device of the utility model after the cover is removed;

[0015] Figure 3 This is a front view of the explosion-proof battery power supply device of this utility model;

[0016] Figure 4 This is a top view of the lead-acid battery inside this utility model after the cover has been removed.

[0017] in:

[0018] 1-Box body, 2-Box cover, 3-Hinge, 4-Lock body, 5-Lead-acid battery, 6-Cable sealing connector, 7-Positive and negative leads, 8-Clamping bolt, 9-Grounding wire, 10-Protective plate, 21-Ventilation window, 22-Ventilation hole, 23-Handle, 50-Baffle, 51-Positive terminal, 52-Negative terminal, 53-Vent vent, 54-Connecting wire, 55-Connecting wire base, 56-Sealant, 57-Electrolyte tank, 58-Battery cover, 59-Pole group. Detailed Implementation

[0019] The following description, with reference to the accompanying drawings, is provided to facilitate understanding of the technical solution of this utility model by those skilled in the art. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this utility model.

[0020] In the following detailed description, numerous specific details are set forth for ease of explanation to provide a comprehensive understanding of the embodiments of the present invention. However, it will be apparent that one or more embodiments may be practiced without these specific details. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts of the present invention.

[0021] Please refer to Figures 1-3 This utility model relates to an explosion-proof battery power supply device, comprising a housing 1 and a cover 2. One side of the cover 2 is connected to the top side of the housing 1 via a hinge 3, and a lock body 4 is provided on the other side of the cover 2. A handle 23 is provided on the top of the cover 2. A grounding wire 9 is fixedly installed on the cover 2 by a clamping bolt 8. The housing 1 has sufficient ventilation area to ensure that hydrogen gas does not easily accumulate inside the housing 1.

[0022] At least four sets of lead-acid batteries 5 are arranged in alignment inside the housing 1. In this embodiment, an insulating ventilation baffle is provided between the interior of the housing 1 and the lead-acid batteries 5 to facilitate ventilation and drainage inside the batteries. Each set of lead-acid batteries 5 includes two positive terminals 51, two negative terminals 52, and at least three filling holes. Each filling hole is equipped with a vent plug 53 with a built-in safety valve at the top. The two positive terminals 51 and two negative terminals 52 of two adjacent sets of lead-acid batteries are connected in series by a pair of connecting wires 54 to form a certain voltage value for use as a DC power supply in explosive atmospheres. The connecting wires 54 are fixed to the two positive terminals 51 and two negative terminals 52 by connecting wire bases 55 and sealant 56 to ensure the sealing performance at this location. Four sets of cable sealing connectors 6 are provided on the outside of the housing cover 2. Four positive and negative leads 7 are connected at one end to the two positive terminals 51 and two negative terminals 52 of the lead-acid battery 5, and at the other end to four sets of cable sealing connectors 6. In this embodiment, several ventilation windows 21 are opened on the cover 2, and several ventilation holes 22 are opened around the body 1 to ensure smooth internal ventilation. Insulating ventilation baffles are installed inside the body 1 and between the lead-acid batteries 5. A grounding wire 9 is fixedly installed on the cover 2 by clamping bolts 8.

[0023] like Figure 4 The image shown is a top view of an embodiment of the lead-acid battery of this utility model after the cover has been removed. It also includes an electrolyte tank 57, with a battery cover 58 on top of the electrolyte tank 57. Multiple horizontally arranged tanks are arranged inside the electrolyte tank 57. Injection holes are correspondingly located on the upper surface of the battery cover 58 at positions corresponding to each tank. Each tank contains an electrode group 59, which includes a positive electrode group and a negative electrode group. The positive electrode group includes several groups of parallel-arranged positive plates, connected together at their top ends by a positive electrode busbar. The negative electrode group includes several groups of parallel-arranged negative plates, connected together by a negative electrode busbar. A partition 50 is provided between the positive and negative plates in each electrode group. Two positive terminal blocks are located at the top of the outermost positive busbar, and two negative terminal blocks are located opposite each other at the top of the other negative busbar. A protective plate 10 is also provided above the positive and negative busbars, with several small heat dissipation holes on the protective plate 10. In specific implementation, the inner wall of the electrolyte tank 57 of the lead-acid battery 5 is coated with an acid-resistant coating layer with a thickness of 0.5-0.8 mm; the outer wall thickness is 0.1-0.3 mm, which increases the insulation performance.

[0024] In summary, the explosion-proof battery power supply device designed in this utility model features a double-wire system for the connections and leads between the batteries. Each wire can independently withstand the circuit current, resulting in better current distribution and heat dissipation, a larger discharge current, and a reduced risk of explosion. Furthermore, the connecting wires are securely welded to the battery terminals using welding, and a base for the connecting wires is provided, which is filled with adhesive to ensure a sealed environment and prevent creepage and leakage.

[0025] The above embodiments are merely descriptions of preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An explosion-proof battery power supply device, characterized in that, The enclosure includes a housing (1) and a cover (2); one side of the cover (2) is connected to the top side of the housing (1) via a hinge (3); a lock (4) is provided on the other side of the cover (2); at least four sets of lead-acid batteries (5) are arranged in alignment inside the housing (1); each set of lead-acid batteries (5) includes two positive terminals (51), two negative terminals (52) and at least three filling holes; each filling hole is provided with a vent plug (53) with a built-in safety valve at the top; the two positive terminals (51) and the two negative terminals (52) of two adjacent sets of lead-acid batteries (5) are connected in alignment. The two negative terminals (52) are connected in series by a pair of connecting wires (54), and the connecting wires (54) are fixed to the two positive terminals (51) and the two negative terminals (52) by connecting wire base (55) and sealant (56); four sets of cable sealing connectors (6) are provided on the outside of the box cover (2); one end of the four positive and negative lead wires (7) is connected to the two positive terminals (51) and the two negative terminals (52) of the lead-acid battery (5), and the other end is connected to the four sets of cable sealing connectors (6).

2. The explosion-proof battery power supply device according to claim 1, characterized in that, The lead-acid battery (5) also includes an electrolyte tank (57); a battery cover (58) is provided on the top of the electrolyte tank (57); multiple horizontally arranged tanks are provided inside the electrolyte tank (57); the injection holes are correspondingly located on the upper surface of the battery cover (58) at positions corresponding to each tank; each tank is equipped with an electrode group (59); the electrode group (59) includes a positive electrode group and a negative electrode group; the positive electrode group includes several groups of parallel positive electrode plates; the top of the several groups of positive electrode plates is connected by a positive electrode busbar. The negative electrode group consists of several groups of parallel negative electrode plates connected together by a negative electrode busbar. A partition (50) is provided between the positive electrode plate and the negative electrode plate in each group of electrodes. Two positive electrode terminals are provided at the top of the outermost positive electrode busbar. Two negative electrode terminals are provided opposite to each other at the top of the negative electrode busbar on the other side. A protective plate (10) is also provided above the positive electrode busbar and the negative electrode busbar. Several heat dissipation holes are provided on the protective plate (10).

3. The explosion-proof battery power supply device according to claim 2, characterized in that, Several ventilation windows (21) are provided on the lid (2); several ventilation holes (22) are provided around the body (1).

4. The explosion-proof battery power supply device according to claim 3, characterized in that, A handle (23) is provided on the top of the box lid (2).

5. The explosion-proof battery power supply device according to claim 4, characterized in that, The inner wall of the electrolyte tank (57) of the lead-acid battery (5) is coated with an acid-resistant coating layer with a thickness of 0.5-0.8 mm; the outer wall thickness is 0.1-0.3 mm.

6. The explosion-proof battery power supply device according to claim 5, characterized in that, An insulating ventilation baffle is provided inside the enclosure (1) and between the lead-acid battery (5).

7. The explosion-proof battery power supply device according to claim 6, characterized in that, A grounding wire (9) is fixedly installed on the box cover (2) by a clamping bolt (8).

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