Battery mounting device without distinguishing positive electrode and negative electrode

Abstract

The utility model discloses a battery mounting device without distinguishing positive and negative electrodes. The battery mounting device comprises a first positive electrode circuit module, a first negative electrode protection module, a second positive electrode circuit module and a second negative electrode protection module, the first positive electrode circuit module is connected with the positive electrode end of the power supply; the first cathode protection module is connected with the second anode circuit module; and the second cathode protection module is connected with the cathode end of the power supply. According to the technical scheme provided by the utility model, the problem that a user needs to distinguish the positive electrode and the negative electrode of a traditional battery box is solved.

Description

Technical Field

[0001] The utility model relates to the field of batteries, in particular to a battery installation device which does not distinguish between positive and negative poles. Background Art

[0002] With the rapid development of science and technology and the widespread use of electronic devices, batteries, as an important energy supply for electronic devices, have been used in all aspects of people's lives. However, traditional battery box designs usually require users to clearly distinguish the positive and negative poles of the battery. If installed incorrectly, it may cause damage to the device or even bring safety risks.

[0003] Although there are already some battery boxes with fool-proof designs on the market that help users install batteries correctly by changing the battery installation method or adding additional indicator marks, these designs cannot completely eliminate the possibility of incorrect installation, especially in low light or when the user is tired, the risk of incorrect installation still exists.

[0004] Therefore, it is necessary to design a new type of battery installation structure, which can automatically adapt to the positive and negative poles of the battery without relying on the user to distinguish between the positive and negative poles, thereby eliminating the risk of misinstallation and improving the user experience. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a battery installation device that does not distinguish between positive and negative poles, including a first positive pole circuit module, a first negative pole protection module, a second positive pole circuit module and a second negative pole protection module;

[0006] The first positive circuit module is connected to the positive terminal of the power supply; the first negative protection module is connected to the second positive circuit module;

[0007] The second negative electrode protection module is connected to the negative terminal of the power supply.

[0008] Preferably, the first cathode protection module includes MOS tubes Q1, Q2, Q3, Q4; resistors R1, R2; a bidirectional breakdown diode D1;

[0009] One end of the resistor R1 is connected to the G pole of Q1 and the G pole of Q3; the S pole of Q1 and the S pole of Q2 are respectively connected to the other end of the resistor R1; one end of the bidirectional breakdown diode D1 is connected to the other end of the resistor R1;

[0010] The D pole of Q1 is connected to the G pole of Q2, the D pole of Q1 is connected to the D pole of Q3, the D pole of Q2 is connected to one end of the resistor R1, and is connected to the D pole of Q4;

[0011] The D pole of Q3 is connected to the G pole of Q4, the S pole of Q3 is connected to the S pole of Q4, the S pole of Q4 is connected to one end of the resistor R2, and the G pole of Q4 is connected to the other end of the resistor R2; the other end of the bidirectional breakdown diode D1 is connected to one end of the resistor R2; the D pole of Q3 is connected to the positive and negative input terminals of the first battery; the D pole of Q2 is connected to the positive and negative input terminals of the second battery.

[0012] Preferably, the resistor R1 and the resistor R2 are both 300K resistors.

[0013] Preferably, one end and the other end of the bidirectional breakdown diode D1 are respectively connected to the output positive electrode and the output negative electrode of the power supply.

[0014] Preferably, the MOS tubes Q1 and Q2 are PMOS tubes.

[0015] Preferably, the MOS tubes Q3 and Q4 are NMOS tubes.

[0016] The beneficial effect of the utility model is that the problem that the user needs to distinguish between positive and negative poles in the traditional battery box is solved by changing the internal circuit design of the battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the principle of a battery installation device that does not distinguish between positive and negative poles;

[0018] Figure 2 is a schematic diagram of the circuit principle of the first negative electrode protection module;

[0019] Figure 3 A schematic diagram of a battery installation device that does not distinguish between positive and negative poles. DETAILED DESCRIPTION

[0020] The technical solution of the present utility model is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present utility model is not limited to the following.

[0021] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model is further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the utility model. It should be noted that relational terms such as the terms "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0023] Moreover, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a list of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus. In the absence of more restrictions, an element defined by the phrase "comprises a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus that includes the element.

[0024] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0025] like Figure 1 As shown, a battery installation device that does not distinguish between positive and negative poles includes a first positive pole circuit module, a first negative pole protection module, a second positive pole circuit module and a second negative pole protection module;

[0026] The first positive circuit module is connected to the positive terminal of the power supply; the first negative protection module is connected to the second positive circuit module;

[0027] The second negative electrode protection module is connected to the negative terminal of the power supply.

[0028] The first cathode protection module includes MOS tubes Q1, Q2, Q3, Q4; resistors R1, R2; and a bidirectional breakdown diode D1;

[0029] One end of the resistor R1 is connected to the G pole of Q1 and the G pole of Q3; the S pole of Q1 and the S pole of Q2 are respectively connected to the other end of the resistor R1; one end of the bidirectional breakdown diode D1 is connected to the other end of the resistor R1;

[0030] The D pole of Q1 is connected to the G pole of Q2, the D pole of Q1 is connected to the D pole of Q3, the D pole of Q2 is connected to one end of the resistor R1, and is connected to the D pole of Q4;

[0031] The D pole of Q3 is connected to the G pole of Q4, the S pole of Q3 is connected to the S pole of Q4, the S pole of Q4 is connected to one end of the resistor R2, and the G pole of Q4 is connected to the other end of the resistor R2; the other end of the bidirectional breakdown diode D1 is connected to one end of the resistor R2; the D pole of Q3 is connected to the positive and negative input terminals of the first battery; the D pole of Q2 is connected to the positive and negative input terminals of the second battery.

[0032] The resistor R1 and the resistor R2 are both 300K resistors.

[0033] One end and the other end of the bidirectional breakdown diode D1 are connected to the output positive electrode and the output negative electrode of the power supply respectively.

[0034] The MOS tubes Q1 and Q2 are PMOS tubes.

[0035] The MOS tubes Q3 and Q4 are NMOS tubes.

[0036] Specifically, Figure 2 As shown, the working process of the first negative electrode protection module includes, if BAT-A is connected to the negative electrode of the battery and BAT-B is connected to the positive electrode of the battery:

[0037] The voltages at the G and S poles of the PMOS tube Q1 are positive, and Q1 is turned off;

[0038] In the PMOS tube Q2, the G pole is negative and the S pole voltage is positive, Q2 is turned on, and V+ outputs the positive voltage of the battery;

[0039] In the NMOS tube Q3, the G pole is positive and the S pole voltage is negative, Q3 is turned on, and V- outputs the negative pole voltage of the battery;

[0040] The voltages of the G and S poles of the NMOS tube Q4 are negative, and Q4 is turned off;

[0041] 2. If BAT-A is connected to the positive pole of the battery and BAT-B is connected to the negative pole of the battery:

[0042] In the PMOS tube Q1, G is negative and D is positive. Since the internal body diode of the MOS is turned on, the current forms a loop through the body diode and R1, and S is positive, so Q1 is turned on and V+ outputs the positive voltage of the battery.

[0043] The voltages at the G and S poles of the PMOS tube Q2 are positive, and Q2 is turned off;

[0044] The voltages of the G and S poles of the NMOS tube Q3 are negative, and Q3 is turned off;

[0045] In the NMOS tube Q4, the G pole is positive and the D pole voltage is negative. Since the internal body diode of the MOS is turned on, the current forms a loop through R2, the S pole, the body diode, and the D pole. The S pole voltage is low, so Q4 is turned on and the V- output is the negative pole of the battery.

[0046] like Figure 3 This is a physical schematic diagram of a battery installation device that does not distinguish between positive and negative poles.

[0047] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A battery installation device that does not distinguish between positive and negative poles, characterized in that: It includes a first positive circuit module, a first negative protection module, a second positive circuit module and a second negative protection module; The first positive circuit module is connected to the positive terminal of the power supply; the first negative protection module is connected to the second positive circuit module; The second negative electrode protection module is connected to the negative terminal of the power supply; The first cathode protection module includes MOS tubes Q1, Q2, Q3, Q4; resistors R1, R2; and a bidirectional breakdown diode D1; One end of the resistor R1 is connected to the G pole of Q1 and the G pole of Q3; the S pole of Q1 and the S pole of Q2 are respectively connected to the other end of the resistor R1; one end of the bidirectional breakdown diode D1 is connected to the other end of the resistor R1; The D pole of Q1 is connected to the G pole of Q2, the D pole of Q1 is connected to the D pole of Q3, the D pole of Q2 is connected to one end of the resistor R1, and is connected to the D pole of Q4; The D pole of Q3 is connected to the G pole of Q4, the S pole of Q3 is connected to the S pole of Q4, the S pole of Q4 is connected to one end of the resistor R2, and the G pole of Q4 is connected to the other end of the resistor R2; the other end of the bidirectional breakdown diode D1 is connected to one end of the resistor R2; the D pole of Q3 is connected to the positive and negative input terminals of the first battery; the D pole of Q2 is connected to the positive and negative input terminals of the second battery.

2. A battery installation device that does not distinguish between positive and negative poles according to claim 1, characterized in that: The resistor R1 and the resistor R2 are both 300K resistors.

3. A battery installation device that does not distinguish between positive and negative poles according to claim 2, characterized in that: One end and the other end of the bidirectional breakdown diode D1 are connected to the output positive electrode and the output negative electrode of the power supply respectively.

4. A battery installation device that does not distinguish between positive and negative poles according to claim 3, characterized in that: The MOS tubes Q1 and Q2 are PMOS tubes.

5. A battery installation device that does not distinguish between positive and negative poles according to claim 1, characterized in that: The MOS tubes Q3 and Q4 are NMOS tubes.

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