High-temperature automatic power-off device for valve-regulated lead-acid storage battery electric bicycle

Abstract

The utility model relates to the technical field of storage battery protection, and discloses a high-temperature automatic power-off device for a valve-regulated lead-acid storage battery electric bicycle, which comprises a battery pack comprising at least four lead-acid storage batteries; the temperature control switch is arranged on the battery pack, and the temperature control switch is used for detecting the real-time temperature of the battery pack; one end of the load is connected with the temperature control switch, and the other end of the load is connected with the battery pack; the relay is connected with the battery pack and the temperature control switch, and the relay is used for automatically powering off the battery pack according to the real-time temperature of the temperature control switch. Through the arrangement of the temperature control switch and the relay, when the temperature of the battery pack exceeds a preset safety range, the system can automatically cut off a power supply, and battery damage or safety accidents caused by overheating are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of battery protection, in particular to a high-temperature automatic power-off device for an electric bicycle using a valve-regulated lead-acid battery. Background Art

[0002] In high-temperature environments, the performance of lead-acid batteries is significantly affected, easily leading to overheating and even safety accidents. Traditional lead-acid battery-powered electric bicycles lack effective protection measures in high-temperature conditions and are unable to automatically shut off the power to prevent battery overheating. Therefore, this utility model proposes a high-temperature automatic power-off device for valve-regulated lead-acid battery-powered electric bicycles, aiming to address this issue and improve the safety and reliability of electric bicycles. Utility Model Content

[0003] The purpose of the utility model is to provide a high-temperature automatic power-off device for an electric bicycle using a valve-regulated lead-acid battery, aiming to solve the above-mentioned problems and improve the safety and reliability of the electric bicycle.

[0004] The utility model provides a high-temperature automatic power-off device for an electric bicycle with a valve-regulated lead-acid battery, comprising:

[0005] a battery pack comprising at least four lead-acid batteries;

[0006] A temperature control switch is provided on the battery pack and is used to detect the real-time temperature of the battery pack;

[0007] a load, one end of the load being connected to the temperature control switch, and the other end of the load being connected to the battery pack;

[0008] A relay is connected to the battery pack and the temperature control switch, and the relay is used to automatically cut off the power to the battery pack according to the real-time temperature of the temperature control switch.

[0009] Preferably, the battery pack includes a first lead-acid battery, a second lead-acid battery, a third lead-acid battery and a fourth lead-acid battery, and the first lead-acid battery, the second lead-acid battery, the third lead-acid battery and the fourth lead-acid battery are connected in series in sequence.

[0010] Preferably, the temperature control switch includes a temperature sensor and a control switch, the temperature sensor is used to detect the real-time temperature of the battery pack, and the control switch is used to control the state of the temperature switch according to the real-time temperature.

[0011] Preferably, the temperature controlled switch includes a common terminal, a normally open terminal and a normally closed terminal.

[0012] Preferably, the relay includes two coil terminals, a relay normally open terminal, a relay normally closed terminal and a relay common terminal.

[0013] Preferably, the positive electrode of the battery pack is connected to an input terminal of the relay, and the negative electrode of the battery pack is connected to another input terminal of the relay.

[0014] Preferably, the normally closed terminal of the relay is connected to the common terminal of the temperature control switch, the common terminal is connected to the normally closed terminal, the normally closed terminal of the temperature control switch is connected to the coil end of the relay, the other coil end of the relay is connected to the negative pole of the battery pack, the relay common terminal of the relay is connected to the load, the normally open terminal of the relay is connected to the positive pole of the battery pack, and the load is connected to the negative pole of the battery pack.

[0015] Compared with the prior art, the beneficial effect of the present invention lies in that, by providing a temperature-controlled switch and a relay, the system can automatically cut off the power supply when the battery pack temperature exceeds a preset safety range, thereby preventing battery damage or safety accidents caused by overheating. Excessively high temperatures will accelerate the aging process of lead-acid batteries. The present device can promptly cut off the power supply when the temperature is too high, thereby protecting the battery and extending its service life. The use of a temperature-controlled switch enables the entire system to automatically cut off the power supply according to the real-time temperature of the battery pack without the need for manual intervention, thereby improving the convenience and intelligence of use. The temperature-controlled switch can provide real-time temperature information of the battery pack, making it easier for users or maintenance personnel to monitor the battery status and promptly identify and address potential problems.

[0016] The high-temperature automatic power-off device for a valve-regulated lead-acid battery electric bicycle of the utility model has significant advantages and benefits in terms of improving safety, extending battery life, and intelligent control. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0018] Figure 1 The utility model is a structural schematic diagram of a high-temperature automatic power-off device for an electric bicycle with a valve-regulated lead-acid battery.

[0019] Among them, 1. Battery pack; 2. Temperature control switch; 3. Load; 4. Relay. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0021] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 cannot be understood as a limitation on this application.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0024] like Figure 1 As shown, the utility model provides a high-temperature automatic power-off device for an electric bicycle with a valve-regulated lead-acid battery, comprising:

[0025] Battery pack 1, battery pack 1 includes at least four lead-acid batteries;

[0026] The temperature control switch 2 is provided on the battery pack 1 and is used to detect the real-time temperature of the battery pack 1;

[0027] Load 3, one end of load 3 is connected to temperature control switch 2, and the other end of load 3 is connected to battery pack 1;

[0028] Relay 4 is connected to the battery pack 1 and the temperature control switch 2. Relay 4 is used to automatically cut off the power to the battery pack 1 according to the real-time temperature of the temperature control switch 2.

[0029] In some embodiments of the present application, the battery pack 1 includes a first lead-acid battery, a second lead-acid battery, a third lead-acid battery and a fourth lead-acid battery, which are connected in series in sequence.

[0030] In a series connection, the positive terminal of the first lead-acid battery is connected to the negative terminal of the second lead-acid battery, the positive terminal of the second lead-acid battery is connected to the negative terminal of the third lead-acid battery, and the positive terminal of the third lead-acid battery is connected to the negative terminal of the fourth lead-acid battery, thus forming a continuous current path. In this way, the total voltage of the battery pack 1 is equal to the sum of the voltages of the individual lead-acid batteries, while the current remains consistent among the batteries. This series configuration allows the battery pack 1 to provide higher voltages to meet the needs of specific devices or applications.

[0031] In some embodiments of the present application, the temperature control switch 2 includes a temperature sensor and a control switch. The temperature sensor is used to detect the real-time temperature of the battery pack 1, and the control switch is used to control the state of the temperature switch according to the real-time temperature.

[0032] The temperature control switch 2 comprises a temperature sensor and a control switch. The temperature sensor is designed to monitor the temperature of the battery pack 1 in real time. It detects the current temperature of the battery pack 1 and transmits this information to the control switch. The control switch, based on the data provided by the temperature sensor, determines its state, automatically opening or closing it to maintain the battery pack 1 within a safe and ideal temperature range. When the temperature of the battery pack 1 exceeds a preset safety threshold, the control switch automatically opens, cutting off power and preventing damage or dangerous conditions caused by overheating. Conversely, when the temperature of the battery pack 1 drops below a safe level, the control switch recloses, allowing current to flow and ensuring normal operation of the battery pack 1. This design of the temperature control switch 2 ensures the safety and reliability of the battery pack 1 under various operating conditions.

[0033] In some embodiments of the present application, the temperature-controlled switch 2 includes a common terminal, a normally open terminal, and a normally closed terminal.

[0034] Temperature-controlled switch 2 includes a common terminal, a normally open terminal, and a normally closed terminal. The normally open terminal remains open when the temperature does not reach a preset value. When the temperature rises above a set threshold, the normally open terminal closes, thus completing the circuit. Conversely, the normally closed terminal remains closed at normal temperatures. When the temperature exceeds a preset value, the normally closed terminal opens, thus interrupting the circuit. This design enables temperature-controlled switch 2 to automatically control the on / off state of the circuit based on temperature changes.

[0035] In some embodiments of the present application, the relay 4 includes two coil terminals, a normally open terminal of the relay 4 , a normally closed terminal of the relay 4 , and a common terminal of the relay 4 .

[0036] Relay 4 includes two coil ends, which are used to receive control signals. When voltage is applied to both ends of the coil, a magnetic field is generated, causing the electromagnet inside relay 4 to operate. The normally open end of relay 4 refers to the contact that is in the open state when relay 4 is not activated. When the coil of relay 4 is energized, the normally open end will close, allowing current to pass. The normally closed end of relay 4 is the contact that is in the closed state when relay 4 is not activated. Once the coil is energized, the normally closed end will open, cutting off the flow of current. The common end of relay 4 is a common terminal connected to the normally open and normally closed contacts. It is used in conjunction with the normally open or normally closed contacts to control the on and off of the external circuit. In this way, relay 4 can switch the connection state of the circuit according to the control signal of the coil end, realizing remote control or automatic control of the circuit.

[0037] In some embodiments of the present application, the positive electrode of the battery pack 1 is connected to an input terminal of the relay 4 , and the negative electrode of the battery pack 1 is connected to another input terminal of the relay 4 .

[0038] The positive terminal of battery pack 1 is connected to the input terminal of relay 4, ensuring that current can flow from battery pack 1 to relay 4, providing the necessary energy for relay 4's normal operation. Simultaneously, the negative terminal of battery pack 1 is connected to the other input terminal of relay 4, forming a current loop, allowing current to flow from the input terminal of relay 4 back to battery pack 1, completing the circuit. This connection ensures that relay 4 can switch its internal contact state in a timely manner according to the input control signal, thereby controlling the on / off of other circuits or devices connected to the output terminal of relay 4.

[0039] In some embodiments of the present application, the normally closed end of relay 4 is connected to the common terminal of temperature control switch 2, the common terminal is connected to the normally closed terminal, the normally closed terminal of temperature control switch 2 is connected to the coil end of relay 4, the other coil end of relay 4 is connected to the negative pole of battery pack 1, the common terminal of relay 4 is connected to load 3, the normally open end of relay 4 is connected to the positive pole of battery pack 1, and load 3 is connected to the negative pole of battery pack 1.

[0040] In this embodiment, the normally closed (NC) terminal of relay 4 is connected to the common terminal (COM) of temperature-controlled switch 2. This means that when temperature-controlled switch 2 is off, current can flow from the normally closed terminal of relay 4 to the common terminal of temperature-controlled switch 2. The normally closed terminal (NC) of temperature-controlled switch 2 is connected to the coil terminal of relay 4. This allows current to flow to the coil of relay 4 when temperature-controlled switch 2 is off, activating relay 4. The other coil terminal of relay 4 is connected to the negative terminal of battery pack 1, providing a return path for the coil of relay 4 and completing the circuit. The common terminal (COM) of relay 4 is connected to load 3. When relay 4 is activated, current can flow from the common terminal of relay 4 to load 3, powering load 3. The normally open (NO) terminal of relay 4 is connected to the positive terminal of battery pack 1. This prevents current from flowing to load 3 when relay 4 is not activated because the normally closed and normally open terminals are disconnected. Load 3 itself is also connected to the negative terminal of battery pack 1, ensuring that the circuit is complete when current flows to load 3. This circuit uses temperature-controlled switch 2 to control the on / off state of relay 4, thereby controlling the power supply to load 3. When temperature-controlled switch 2 is closed, the coil of relay 4 is energized, relay 4 is attracted, and load 3 receives power. When temperature-controlled switch 2 is opened, the coil of relay 4 is de-energized, relay 4 is released, and load 3 is de-energized.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. Valve-regulated lead-acid battery electric bicycle high-temperature automatic power-off device, characterized in that: include: a battery pack comprising at least four lead-acid batteries; A temperature control switch is provided on the battery pack and is used to detect the real-time temperature of the battery pack; a load, one end of the load being connected to the temperature control switch, and the other end of the load being connected to the battery pack; A relay is connected to the battery pack and the temperature control switch, and is used to automatically cut off the power to the battery pack according to the real-time temperature of the temperature control switch.

2. The high-temperature automatic power-off device for a valve-regulated lead-acid battery electric bicycle according to claim 1, characterized in that: The battery pack includes a first lead-acid battery, a second lead-acid battery, a third lead-acid battery and a fourth lead-acid battery, which are sequentially connected in series.

3. The high-temperature automatic power-off device for a valve-regulated lead-acid battery electric bicycle according to claim 2, characterized in that: The temperature control switch includes a temperature sensor and a control switch. The temperature sensor is used to detect the real-time temperature of the battery pack, and the control switch is used to control the state of the temperature switch according to the real-time temperature.

4. The high-temperature automatic power-off device for a valve-regulated lead-acid battery electric bicycle according to claim 3, characterized in that: The temperature controlled switch comprises a common terminal, a normally open terminal and a normally closed terminal.

5. The high-temperature automatic power-off device for electric bicycles with valve-regulated lead-acid batteries according to claim 4 is characterized in that: The relay includes two coil terminals, a relay normally open terminal, a relay normally closed terminal and a relay common terminal.

6. The high-temperature automatic power-off device for a valve-regulated lead-acid battery electric bicycle according to claim 5, characterized in that: The positive electrode of the battery pack is connected to an input terminal of the relay, and the negative electrode of the battery pack is connected to the other input terminal of the relay.

7. The high-temperature automatic power-off device for electric bicycles with valve-regulated lead-acid batteries according to claim 5, characterized in that: The normally closed terminal of the relay is connected to the common terminal of the temperature control switch, the common terminal is conductive with the normally closed terminal, the normally closed terminal of the temperature control switch is connected to the coil end of the relay, the other coil end of the relay is connected to the negative pole of the battery pack, the relay common terminal of the relay is connected to the load, the normally open terminal of the relay is connected to the positive pole of the battery pack, and the load is connected to the negative pole of the battery pack.

Images