Emergency starting power supply

Abstract

The emergency starting power supply comprises a battery pack and a controller, the negative electrode of the battery pack forms a negative electrode output port after passing through a detection protection circuit, and the positive electrode of the battery pack forms a positive electrode output port; the driving end of the controller is connected with a driving resistor R6 and then is connected with the detection protection circuit; the cathode output port and the anode output port are electrically connected with a conductive material respectively, for example, the cathode output port and the anode output port can be connected with a conductive clamp or an iron wire, a copper wire, a storage battery wire clamp and the like with the sectional area larger than 2 mm < 2 >. Compared with the prior art, the device has the advantages that the device is simple in structure, can be charged at any time, can output large current for starting an automobile, and can effectively control the short circuit of an output port metal contact and the large current output when the positive electrode and the negative electrode are reversely connected.

Description

Technical Field

[0001] The invention belongs to the field of vehicle accessories, and in particular relates to an emergency starting power supply. Background Art

[0002] With the continuous development of science and technology, various household appliances and transportation tools have entered people's lives and gradually become necessities for people's food, clothing, housing and transportation. Cars, which have existed for hundreds of years, have become the preferred means of transportation for most people to travel and tour. However, for cars, they often encounter the problem of not starting due to insufficient battery power or low temperature.

[0003] There are many types of emergency starting power supplies on the market, but they are dangerous because they cannot provide short-circuit and reverse connection protection for the metal contacts of the power supply's output terminals. Alternatively, relay protection is used, but relays have disadvantages such as easy carbon accumulation on the contacts, short service life, and large size. Therefore, there is uncertainty in protection whether it is external or internal. Therefore, it is very important to obtain an emergency starting power supply. Summary of the invention

[0004] In order to solve at least one of the above technical problems, the present invention provides an emergency starting power supply, including a battery pack and a controller, wherein the negative electrode of the battery pack forms a negative output port after passing through a detection protection circuit, and the positive electrode of the battery pack forms a positive output port;

[0005] The driving end of the controller is connected to the driving resistor R6 and then connected to the detection protection circuit;

[0006] The detection protection circuit includes MOS tubes Q1, Q2, Q21 and Q22, the negative electrode of the battery pack is connected to the drain of the MOS tube Q1, the source of the MOS tube Q1 is connected to the source of the MOS tube Q21, and the drain of the MOS tube Q21 outputs a negative output port;

[0007] The negative electrode of the battery pack is connected to the drain of the MOS tube Q2, the source of the MOS tube Q2 is connected to the source of the MOS tube Q22, the drain of the MOS tube Q22 outputs a negative output port, the drain of the MOS tube Q1 is connected to the drain of the MOS tube Q2, and the gates of the MOS tubes Q1, Q2, Q21, and Q22 are all connected to the driving end of the controller through the driving resistor R6.

[0008] The source of the MOS tube Q1 is connected to the driving resistor R6 through the first resistor R1. Under normal conditions, the controller outputs a driving voltage to the driving resistor R6, and the MOS tube is turned on. At the same time, the controller monitors the voltages at both ends. When a short circuit or reverse connection occurs, the voltages at both ends drop rapidly. When the voltage drops to a set voltage point, the controller protection is triggered, and the controller no longer outputs a driving voltage to the driving resistor R6, thereby turning off the MOS tube.

[0009] The drain of the MOS tube Q21 is connected to a release circuit, which includes a third resistor R3, a third diode D3, and a MOS tube Q4 connected to the drain of the MOS tube Q21 in sequence. The gate of the MOS tube Q4 outputs a release end through a seventh resistor R7; the source of the MOS tube Q4 is grounded.

[0010] The driving end of the controller is connected to the driving resistor R6 through a driving circuit, and the driving circuit includes: a fourth resistor R4 connected to the driving end of the controller, a third transistor Q3 connected in series with the fourth resistor R4, a ninth resistor R9 connected to the driving end of the controller, a fifth transistor Q5 connected in series with the ninth resistor R9, the emitter of the third transistor Q3 is connected to the emitter of the fifth transistor Q5, and the emitter of the third transistor Q3 is connected to the driving resistor R6; the positive electrode of the battery pack is connected to the collector of the third transistor Q3 through a first diode D1, and the first diode D1 is grounded through a first capacitor C1; the collector of the fifth transistor Q5 is grounded.

[0011] It also includes a master controller, the driving port of the master controller is connected to the battery management circuit through an isolation circuit. The controller is also connected to a temperature detection circuit. The controller is also connected to an alarm circuit. The controller is also connected to an indication circuit. The controller is connected to a negative output port through a twelfth resistor R12, and the controller and the twelfth resistor R12 are grounded through a fifth diode D5. The controller is also connected to a burning port.

[0012] The negative output port and the positive output port are electrically connected to a conductive material, for example, a conductive clip, or a conductive material with a cross-sectional area greater than 2 mm. 2 Iron wire, copper wire, battery wire clips, etc.

[0013] Through the above technical solution, the positive output port and the negative output port are connected to the positive and negative poles of the car starting circuit. If they are connected correctly, the controller outputs a driving voltage to the driving resistor R6, and the MOS tube is turned on. At the same time, the controller monitors the voltages at both ends. When a short circuit or reverse connection occurs, the positive and negative voltages will drop rapidly. When they drop to the set voltage point, the controller protection is triggered. The controller no longer outputs a driving voltage to the driving resistor R6, thereby turning off the MOS tube.

[0014] The battery further comprises a negative electrode connector, which is detachable and electrically connected to the negative electrode output port; a positive electrode connector, which is detachable and electrically connected to the positive electrode output port; the negative electrode output port and the positive electrode output port are both electrically fixedly connected with spring connection pins; a housing is further comprised, a circuit board is fixed in the housing, the battery pack and the controller are arranged on the circuit board, the main body of the spring connection pin is fixed in the housing, and the outer wall of the housing is provided with a first through hole and a second through hole for the negative electrode connector and the positive electrode connector to be electrically connected to the negative electrode output port and the positive electrode output port respectively, the shape of the first through hole is different from the shape or size of the second through hole, at least part of the outer wall of the negative electrode connector is shaped like the first through hole, and at least part of the outer wall of the positive electrode connector is shaped like the second through hole;

[0015] The negative electrode connector and the positive electrode connector are spliced ​​through a connecting structure to form a clamp structure, and the connecting structure includes a first connecting block integrally formed on the outer wall of the negative electrode connector, and a second connecting block integrally formed on the outer wall of the positive electrode connector, the first connecting block is provided with a first step surface groove, the second connecting block is provided with a first step surface protrusion matching the first step surface groove, a gap is formed between the first step surface protrusion and the first step surface groove, both sides of the second connecting block are integrally formed with a limited surface, the limited surface is provided with a plug hole, and a clamping block is integrally formed on the side wall of the interval, the clamping block is provided with a first channel, the first rotating shaft is fixed in the first channel, and also includes a clamping member, the center of the clamping member is provided with a first rotating hole matching the first rotating shaft, the clamping member includes a plurality of S-shaped elastic members connected end to end, and both ends of the clamping member are integrally formed with an insertion lever matching the plug hole, and the insertion lever is arranged obliquely;

[0016] The end of the clip structure is at least partially spherical, and a second rotating shaft is provided on both sides of the center of the spherical surface. A first recess and a second recess are respectively provided on the spherical surface on both sides of the center. The first recess has a built-in negative conductive part, and the second recess has a built-in positive conductive part. The negative conductive part is electrically connected to the built-in conductive wire of the negative connector, and the positive conductive part is electrically connected to the built-in conductive wire of the positive connector. An installation chamber is provided on the outer wall of the shell, and second rotating grooves cooperating with the second rotating shaft are provided on both side walls of the installation chamber. After the second rotating shaft is engaged with and inserted into the second rotating groove, the end of the spring connecting needle contacts the part of the spherical surface that does not have the conductive ability. The clip structure is rotated, and the spring connecting needle is inserted into the first recess and the second recess to achieve conductive contact.

[0017] The insertion lever is arranged obliquely to facilitate the insertion of the first connection block into the second connection block. After insertion, the end of the insertion lever can contact the side wall of the plug hole, wherein a control lever is integrally formed on the insertion lever and is angled with the insertion lever. When disassembly is required, the control lever can be rotated to rotate the card for easy disassembly. The first connection block and the second connection block can be made of plastic material to form mutually adsorbed adsorption surfaces so as to achieve electrostatic adsorption and facilitate stability during plugging.

[0018] It is worth mentioning that the plug holes located on the two limiting surfaces are symmetrical with respect to the center of the first rotating shaft. A torsion spring can be arranged at the first rotating hole.

[0019] The negative output port and the positive output port are both electrically and fixedly connected with a plug pin, and the shell is provided with a third through hole and a fourth through hole that cooperate with the two plug pins, and a spring structure is fixed in the third through hole and the fourth through hole, and the spring structure includes a lower spring, an upper spring connected to the lower spring by bending, and the part of the lower spring located in the shell is fixedly connected with the plug pin, the lower spring is bent upward to form a first bending portion, and the upper spring is bent upward to form a second bending portion, and the bending point of the second bending portion is located outside the bending point of the first bending portion. There is a gap between the lower spring and the upper spring, and the upper spring also has a third bending portion, the third bending portion is located outside the second bending portion, and the third bending portion is located within the upward trend range of the first bending portion.

[0020] If there is no clamp structure at hand, or the clamp structure of the present technical solution is lost, then you can find any conductive iron wire or other conductive wire. Since the conductive wire is mostly soft, it can be easily inserted into the gap between the upper spring sheet and the lower spring sheet to achieve conductive clamping.

[0021] In addition, a plurality of silicone spring spiral parts can be fixed on the outer wall of the shell, through which the iron wire can be passed when in use, so as to protect the user from being electrocuted by the electrified iron wire.

[0022] Compared with the prior art, the advantages of the present invention are: the present invention has a simple structure, can be charged at any time, can output a large current for starting a car, and can effectively control the short circuit of the metal contacts of the output port and the large current output when the positive and negative poles are connected in reverse. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is the circuit diagram of the master controller of the present invention;

[0024] Figure 2 This is a circuit diagram of the controller of the present invention;

[0025] Figure 3 Detection protection circuit diagram of the present invention;

[0026] Figure 4It is a circuit diagram of the isolation circuit part of the present invention;

[0027] Figure 5 It is the circuit diagram of other parts of the present invention;

[0028] Figure 6 It is a schematic diagram of the split structure of the clamp structure of the present invention;

[0029] Figure 7 It is a schematic cross-sectional view of the connection structure of the clamp structure after splicing of the present invention;

[0030] Figure 8 for Figure 6 Schematic cross-sectional view of ;

[0031] Fig. 9 It is a schematic diagram of the structure in which the clip structure is not connected;

[0032] Fig.10 It is a schematic diagram of the electrical conduction structure of the clip structure;

[0033] Fig.11 It is a structural schematic diagram of the shrapnel structure;

[0034] Reference numerals: 1 negative electrode connector; 2 positive electrode connector; 3 spring connection needle; 4 housing; 5 first opening; 6 second opening;

[0035] 7 first connecting block; 8 second connecting block; 9 first step surface groove; 10 first step surface protrusion; 11 limiting surface; 12 blocking block; 13 first channel; 14 first rotating shaft; 15 clamping member; 16 inserting lever; 17 second rotating shaft; 18 first recess; 19 second recess; 20 installation chamber; 21 control rod; 22 adsorption surface; 23 plug pin; 24 lower spring sheet; 25 upper spring sheet; 26 first bending portion; 27 second bending portion; 28 third bending portion; 29 plug-in hole. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the present invention, and thus to more clearly define the scope of the protection claimed in the present invention, the present invention is described in detail with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific implementations of the present invention, which are only some embodiments of the present invention, wherein the specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and each specific feature does not naturally and directly limit the scope of implementation of the present invention.

[0037] Referring to the accompanying drawings, the present invention adopts the following technical solution. The present invention provides an emergency starting power supply, including a battery pack and a controller. The negative electrode of the battery pack forms a negative output port after passing through a detection protection circuit, and the positive electrode of the battery pack forms a positive output port;

[0038] The driving end of the controller is connected to the driving resistor R6 and then connected to the detection protection circuit;

[0039] The detection protection circuit includes MOS tubes Q1, Q2, Q21 and Q22, the negative electrode of the battery pack is connected to the drain of the MOS tube Q1, the source of the MOS tube Q1 is connected to the source of the MOS tube Q21, and the drain of the MOS tube Q21 outputs a negative output port;

[0040] The negative electrode of the battery pack is connected to the drain of the MOS tube Q2, the source of the MOS tube Q2 is connected to the source of the MOS tube Q22, the drain of the MOS tube Q22 outputs a negative output port, the drain of the MOS tube Q1 is connected to the drain of the MOS tube Q2, and the gates of the MOS tubes Q1, Q2, Q21, and Q22 are all connected to the driving end of the controller through the driving resistor R6.

[0041] The source of the MOS tube Q1 is connected to the driving resistor R6 through the first resistor R1. Under normal conditions, the controller outputs a driving voltage to the driving resistor R6, and the MOS tube is turned on. At the same time, the controller monitors the voltages at both ends. When a short circuit or reverse connection occurs, the voltages at both ends drop rapidly. When the voltage drops to a set voltage point, the controller protection is triggered, and the controller no longer outputs a driving voltage to the driving resistor R6, thereby turning off the MOS tube.

[0042] The drain of the MOS tube Q21 is connected to a release circuit, which includes a third resistor R3, a third diode D3, and a MOS tube Q4 connected to the drain of the MOS tube Q21 in sequence. The gate of the MOS tube Q4 outputs a release end through a seventh resistor R7; the source of the MOS tube Q4 is grounded.

[0043] The driving end of the controller is connected to the driving resistor R6 through a driving circuit, and the driving circuit includes: a fourth resistor R4 connected to the driving end of the controller, a third transistor Q3 connected in series with the fourth resistor R4, a ninth resistor R9 connected to the driving end of the controller, a fifth transistor Q5 connected in series with the ninth resistor R9, the emitter of the third transistor Q3 is connected to the emitter of the fifth transistor Q5, and the emitter of the third transistor Q3 is connected to the driving resistor R6; the positive electrode of the battery pack is connected to the collector of the third transistor Q3 through a first diode D1, and the first diode D1 is grounded through a first capacitor C1; the collector of the fifth transistor Q5 is grounded.

[0044] It also includes a master controller, the driving port of the master controller is connected to the battery management circuit through an isolation circuit. The controller is also connected to a temperature detection circuit. The controller is also connected to an alarm circuit. The controller is also connected to an indication circuit. The controller is connected to a negative output port through a twelfth resistor R12, and the controller and the twelfth resistor R12 are grounded through a fifth diode D5. The controller is also connected to a burning port.

[0045] The negative output port and the positive output port are electrically connected to a conductive material, for example, a conductive clip, or a conductive material with a cross-sectional area greater than 2 mm. 2 Iron wire, copper wire, battery wire clips, etc.

[0046] Through the above technical solution, the positive output port and the negative output port are connected to the positive and negative poles of the car starting circuit. If they are connected correctly, the controller outputs a driving voltage to the driving resistor R6, and the MOS tube is turned on. At the same time, the controller monitors the voltages at both ends. When a short circuit or reverse connection occurs, the positive and negative voltages will drop rapidly. When they drop to the set voltage point, the controller protection is triggered. The controller no longer outputs a driving voltage to the driving resistor R6, thereby turning off the MOS tube.

[0047] The invention also includes a negative electrode connector 1, which is detachable and electrically connected to the negative electrode output port; and a positive electrode connector 2, which is detachable and electrically connected to the positive electrode output port; the negative electrode output port and the positive electrode output port are both electrically fixedly connected with a spring connection needle 3, and also includes a shell 4, a circuit board is fixed in the shell 4, the battery pack and the controller are arranged on the circuit board, the main body of the spring connection needle 3 is fixed in the shell 4, and the outer wall of the shell 4 is provided with a first through hole 5 and a second through hole 6 for the negative electrode connector 1 and the positive electrode connector 2 to be electrically connected to the negative electrode output port and the positive electrode output port, respectively. The shape of the first through hole 5 is different from the shape or size of the second through hole, and at least part of the outer wall of the negative electrode connector 1 is shaped like the first through hole 5, and at least part of the outer wall of the positive electrode connector 2 is shaped like the second through hole 6;

[0048] The negative electrode connector 1 and the positive electrode connector 2 are spliced ​​together to form a clip structure through a connection structure, and the connection structure includes a first connection block 7 integrally formed on the outer wall of the negative electrode connector 1, and a second connection block 8 integrally formed on the outer wall of the positive electrode connector 2, the first connection block 7 is provided with a first step surface groove 9, and the second connection block 8 is provided with a first step surface protrusion 10 that matches the first step surface groove 9, and a gap is formed between the first step surface protrusion 10 and the first step surface groove 9, and both sides of the second connection block 8 are integrally formed. A limited surface 11 of a type is provided, a plug hole 29 is provided on the limited surface 11, a positioning block 12 is integrally formed on the side wall of the interval, a first channel 13 is provided on the positioning block 12, a first rotating shaft 14 is fixed in the first channel 13, and a clamping member 15 is also included, a first rotating hole matching the first rotating shaft 14 is provided at the center of the clamping member 15, the clamping member 15 includes a plurality of S-shaped elastic members connected end to end, and both ends of the clamping member 15 are integrally formed with an insertion lever 16 matching the plug hole 29, and the insertion lever 16 is arranged obliquely;

[0049] Among them, the negative electrode connector 1 and the positive electrode connector 2 are spliced ​​through a connection structure to form a clamp structure, which can increase the stability of the installation. Compared with a single connection that requires an additional installation groove to be dug, the present invention has a simple structure and can distinguish between positive and negative poles to prevent reverse connection. When a single connector is damaged, only the broken one can be replaced, reducing maintenance costs.

[0050] The end of the clip structure is at least partially spherical, and a second rotating shaft 17 is provided on both sides of the center of the spherical surface. A first recess 18 and a second recess 19 are respectively provided on the spherical surface on both sides of the center. The first recess 18 has a built-in negative conductive part, and the second recess 19 has a built-in positive conductive part. The negative conductive part is electrically connected to the built-in conductive wire of the negative connector 1, and the positive conductive part is electrically connected to the built-in conductive wire of the positive connector 2. An installation chamber 20 is provided on the outer wall of the shell 4, and second rotating grooves cooperating with the second rotating shaft 17 are provided on both side walls of the installation chamber 20. After the second rotating shaft 17 is engaged and snapped into the second rotating groove, the end of the spring connecting needle 3 contacts the part of the spherical surface that does not have the conductive ability. The clip structure is rotated, and the spring connecting needle 3 is snapped into the first recess 18 and the second recess 19 to achieve conductive contact.

[0051] The insertion lever 16 is arranged obliquely to facilitate the insertion of the first connection block 7 into the second connection block 8. After insertion, the end of the insertion lever 16 can contact the side wall of the plug hole 29. A control lever 21 is integrally formed on the insertion lever 16 and is angled with the insertion lever 16. When disassembly is required, the control lever 21 can be rotated to rotate the clamp 15 for easy disassembly. The first connection block 7 and the second connection block 8 can be made of plastic to form mutually adsorbed adsorption surfaces 22 to achieve electrostatic adsorption and facilitate stability during insertion.

[0052] It is worth mentioning that the insertion holes 29 located on the two limiting surfaces 11 are symmetrical with respect to the center of the first rotating shaft 14. A torsion spring can be arranged at the first rotating hole.

[0053] The negative output port and the positive output port are both electrically and fixedly connected with the plug pin 23, that is, the plug pin and the spring connection pin are connected in parallel, the housing 4 is provided with a third through hole and a fourth through hole matched with the two plug pins 23, and a spring structure is fixed in the third through hole and the fourth through hole, the spring structure includes a lower spring sheet 24, an upper spring sheet 25 bent and connected to the lower spring sheet 24, and the part of the lower spring sheet 24 located in the housing 4 is fixedly connected with the plug pin 23, the lower spring sheet 24 is bent upward with a first bending portion 26, the upper spring sheet 25 is bent upward with a second bending portion 27, and the bending point of the second bending portion 27 is located outside the bending point of the first bending portion 26. There is a gap between the lower spring sheet 24 and the upper spring sheet 25, and the upper spring sheet 25 also has a third bending portion 28, the third bending portion 28 is located outside the second bending portion 27, and the third bending portion 28 is located within the upward trend range of the first bending portion 26.

[0054] If there is no clip structure around, or the clip structure of the present technical solution is lost, then you can find any conductive iron wire or other conductive wire. Since the conductive wire is mostly soft, it can easily follow the upper spring sheet 25 into the gap between the lower spring sheet 24 to achieve conductive clamping.

[0055] In addition, a plurality of silicone spring spirals can be fixed on the outer wall of the housing 4, through which iron wires can be passed when in use, thereby protecting the user from being electrocuted by the electrified iron wires.

[0056] Compared with the prior art, the advantages of the present invention are: the present invention has a simple structure, can be charged at any time, can output a large current for starting a car, and can effectively control the short circuit of the metal contacts of the output port and the large current output when the positive and negative poles are connected in reverse.

[0057] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An emergency starting power supply, characterized in that: It includes a battery pack and a controller, wherein the negative electrode of the battery pack forms a negative output port after passing through a detection protection circuit, and the positive electrode of the battery pack forms a positive output port; The driving end of the controller is connected to the driving resistor R6 and then connected to the detection protection circuit; The detection protection circuit includes MOS tubes Q1, Q2, Q21 and Q22, the negative electrode of the battery pack is connected to the drain of the MOS tube Q1, the source of the MOS tube Q1 is connected to the source of the MOS tube Q21, and the drain of the MOS tube Q21 outputs a negative output port; The negative electrode of the battery pack is connected to the drain of the MOS tube Q2, the source of the MOS tube Q2 is connected to the source of the MOS tube Q22, the drain of the MOS tube Q22 outputs a negative output port, the drain of the MOS tube Q1 is connected to the drain of the MOS tube Q2, and the gates of the MOS tubes Q1, Q2, Q21, and Q22 are all connected to the driving end of the controller through the driving resistor R6.

2. The emergency starting power supply according to claim 1, characterized in that: The source of the MOS transistor Q1 is connected to the driving resistor R6 via the first resistor R1.

3. The emergency starting power supply according to claim 1 is characterized in that: The drain of the MOS tube Q21 is connected to a release circuit, which includes a third resistor R3, a third diode D3, and a MOS tube Q4 connected to the drain of the MOS tube Q21 in sequence. The gate of the MOS tube Q4 outputs a release end through a seventh resistor R7; the source of the MOS tube Q4 is grounded.

4. The emergency starting power supply according to claim 1 is characterized in that: The driving end of the controller is connected to the driving resistor R6 through a driving circuit, and the driving circuit includes: a fourth resistor R4 connected to the driving end of the controller, a third transistor Q3 connected in series with the fourth resistor R4, a ninth resistor R9 connected to the driving end of the controller, a fifth transistor Q5 connected in series with the ninth resistor R9, the emitter of the third transistor Q3 is connected to the emitter of the fifth transistor Q5, and the emitter of the third transistor Q3 is connected to the driving resistor R6; the positive electrode of the battery pack is connected to the collector of the third transistor Q3 through a first diode D1, and the first diode D1 is grounded through a first capacitor C1; the collector of the fifth transistor Q5 is grounded.

5. The emergency starting power supply according to claim 1 is characterized in that: It also includes a main controller, a driving port of which is connected to a battery management circuit via an isolation circuit.

6. The emergency starting power supply according to claim 1, characterized in that: The controller is also connected to a temperature detection circuit, an alarm circuit, and an indication circuit.

7. The emergency starting power supply according to claim 1 is characterized in that: The controller is connected to the negative output port via a twelfth resistor R12, and the controller and the twelfth resistor R12 are grounded via a fifth diode D5.

8. The emergency starting power supply according to claim 1, characterized in that: The negative electrode output port and the positive electrode output port are electrically connected to conductive materials respectively.

9. The emergency starting power supply according to claim 1, characterized in that: It also includes a negative electrode connector (1) which is detachable and electrically connected to the negative electrode output port; It also includes a positive electrode connector (2) which is detachable and electrically connected to the positive electrode output port; The negative output port and the positive output port are both electrically fixedly connected with a spring connection pin (3), and further comprises a shell (4), a circuit board is fixed in the shell (4), the battery pack and the controller are arranged on the circuit board, the main body of the spring connection pin (3) is fixed in the shell (4), and the outer wall of the shell (4) is provided with a first through hole (5) and a second through hole (6) for respectively connecting the negative connector (1) and the positive connector (2) to the negative output port and the positive output port for electrical connection, the shape of the first through hole (5) and the shape or size of the second through hole are different, at least part of the outer wall of the negative connector (1) is shaped like the first through hole (5), and at least part of the outer wall of the positive connector (2) is shaped like the second through hole (6); The negative electrode connector (1) and the positive electrode connector (2) are spliced ​​together through a connection structure to form a clamp structure, wherein the connection structure comprises a first connection block (7) integrally formed on the outer wall of the negative electrode connector (1), and a second connection block (8) integrally formed on the outer wall of the positive electrode connector (2), wherein the first connection block (7) is provided with a first step surface groove (9), and the second connection block (8) is provided with a first step surface protrusion (10) matched with the first step surface groove (9), a gap is formed between the first step surface protrusion (10) and the first step surface groove (9), and both sides of the second connection block (8) are integrally formed with A limiting surface (11) is provided on the limiting surface (11), a plug hole (29) is formed on the side wall of the interval, a positioning block (12) is integrally formed, a first channel (13) is formed on the positioning block (12), a first rotating shaft (14) is fixed in the first channel (13), and a clamping member (15) is also included, a first rotating hole matching with the first rotating shaft (14) is formed at the center of the clamping member (15), the clamping member (15) includes a plurality of S-shaped elastic members connected end to end, and both ends of the clamping member (15) are integrally formed with an insertion lever (16) matching with the plug hole (29), and the insertion lever (16) is arranged obliquely.

10. The emergency starting power supply according to claim 9, characterized in that: The end of the clamp structure is at least partially spherical, and a second rotating shaft (17) is provided on both sides of the center of the spherical surface. A first recess (18) and a second recess (19) are provided on the spherical surface on both sides of the center, respectively. The first recess (18) has a built-in negative electrode conductive part, and the second recess (19) has a built-in positive electrode conductive part. The negative electrode conductive part is electrically connected to the built-in conductive wire of the negative electrode connector (1), and the positive electrode conductive part is electrically connected to the built-in conductive wire of the positive electrode connector (2). The outer wall of the shell (4) has an installation chamber (20), and the two side walls of the installation chamber (20) have second rotating grooves that cooperate with the second rotating shaft (17). After the second rotating shaft (17) is engaged with and snapped into the second rotating groove, the end of the spring connecting needle (3) contacts the part of the spherical surface that does not have the conductive ability. When the clamp structure is rotated, the spring connecting needle (3) is snapped into the first recess (18) and the second recess (19), thereby achieving conductive contact.

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