Active signal closed-circuit switch of new energy protection system

Abstract

The utility model relates to an active signal closed-circuit switch of a new energy protection system, and relates to the technical field of closed-circuit devices, the active signal closed-circuit switch of the new energy protection system comprises an inner base, a connecting assembly, a pushing assembly and a signal assembly, the connecting assembly is fixed to the inner base, the connecting assembly comprises two copper bars, and the pushing assembly is fixed to the inner base. The two copper bars are arranged on two opposite sides of the inner base and are respectively connected with an external circuit; the pushing assembly is arranged at the upper end of the connecting assembly, and the pushing assembly is provided with a connecting copper bar; the signal assembly is arranged at the upper end of the pushing assembly, the signal assembly is electrically connected with an external signal, and the signal assembly can control the pushing assembly to move downwards after receiving the external signal, so that the connecting copper bar is conducted with the two copper bars. The closed-circuit switch is used for solving the problem that the existing closed-circuit switch adopts a mechanical principle to trigger the switch, so that the response is slow.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of closed circuit switch, in particular to a new energy protection system active signal closed circuit switch. BACKGROUND

[0002] With the rapid development of new energy technology, especially in the field of electric vehicles, solar power generation or energy storage circuit, the demand for efficient electrical control devices is increasing. The safety and reliability of these devices directly affect the stability and service life of the entire system, so the requirements for key components such as signal closed circuit switches are also increasing.

[0003] In traditional cars, the intelligence is relatively backward, and mechanical principle trigger switches are mostly used, which react slowly and usually cannot act within milliseconds (ms), making it difficult to provide safety protection to users in time. CONTENT OF THE INVENTION

[0004] The present application provides a new energy protection system active signal closed circuit switch to solve the problem of slow reaction caused by the use of mechanical principle trigger switches in current closed circuit switches.

[0005] A new energy protection system active signal closed circuit switch, comprising:

[0006] An inner base;

[0007] A connecting assembly fixed with the inner base, the connecting assembly comprising two copper bars, the two copper bars being arranged on opposite sides of the inner base and connected with external circuits respectively;

[0008] A pushing assembly arranged at the upper end of the connecting assembly, the pushing assembly being provided with a connecting copper bar;

[0009] A signal assembly arranged at the upper end of the pushing assembly, the signal assembly being electrically connected with external signals, and the signal assembly being capable of controlling the pushing assembly to move downward after receiving external signals, so that the connecting copper bar and the two copper bars are conductive.

[0010] By using the above technical solution, the pushing assembly is controlled to move downward by the signal assembly receiving external signals, so that the connecting copper bar and the two copper bars are conductive, thereby realizing the closed circuit between the two copper bars. This closed switch can be actively connected to the circuit within less than 1ms under the excitation of external control signals to provide safety protection for the subsequent protection, thereby providing a reliable circuit connection control means for the new energy protection system and ensuring the normal operation of the system.

[0011] In one embodiment, both ends of the connecting copper bar are provided with first bosses, and each copper bar is provided with a second boss near one end of the connecting copper bar, and the first boss and the second boss are in abutment and conductive.

[0012] By adopting the technical scheme, the first boss at the two ends of the connecting copper bar abuts and guides the second boss close to one end of each copper bar, the boss design increases the contact area, ensures good electrical connection when the connecting copper bar and the copper bar are guided, and increases the surface distance and disperses the electric field distribution, effectively preventing the occurrence of arc breakdown. In the case of high voltage or large current, the safety of the switch can be ensured, circuit failure and equipment damage caused by arc breakdown can be avoided, and the service life of the switch is prolonged.

[0013] In one of the embodiments, the inner base is internally hollowed to form a containing space, two opposite spaced-apart protrusions are arranged in the containing space, a containing groove is recessed at the upper end of each protrusion, a positioning column is further arranged on the containing groove, one end of the copper bar is arranged in the corresponding containing groove, and the positioning column penetrates the copper bar.

[0014] By adopting the technical scheme, the protrusions and the positioning column in the containing space of the inner base provide additional support and fixation for the copper bar, enhance the structural stability of the entire connecting assembly, fix one end of the copper bar in the containing groove, effectively prevent the copper bar from moving when subjected to the downward force of the connecting copper bar or other external forces. This ensures the stable relative position between the copper bar and the connecting copper bar, thereby ensuring reliable conduction between the two, improving the stability and reliability of the switch.

[0015] In one of the embodiments, the connecting assembly further comprises an insulating barrier piece, the insulating barrier piece is arranged at the upper end of the copper bar and is penetrated by the corresponding positioning column at both ends, both ends of the insulating barrier piece are provided with a break, and the push assembly can move downward and push the middle part of the insulating barrier piece, so that the connecting copper bar and the copper bar are guided.

[0016] By adopting the technical scheme, the insulating barrier piece is perfectly and closely matched with the inner base at the upper and lower ends of the copper bar in the normal non-closed circuit condition, effectively preventing the risk of creepage between the copper bar and the connecting copper bar, preventing circuit short circuit or other faults, and improving the insulation performance of the switch to ensure the safe operation of the circuit. At the same time, the break at both ends of the insulating barrier piece can be easily pushed by the push assembly, ensuring that the switch can be reliably guided when it needs to be closed.

[0017] In one of the embodiments, the push assembly further comprises a piston, the lower end of the piston is provided with an abutting portion, the middle part of the abutting portion is penetrated, the connecting copper bar is arranged in the abutting portion, and the abutting portion can push the middle part of the insulating barrier piece and be located between the two protrusions.

[0018] By adopting the technical scheme, the abutting portion of the lower end of the piston of the pushing assembly can accurately push the middle portion of the insulating barrier, and is located between the two protrusions after being pushed, so that the insulating barrier can be pushed according to the design requirement, and the two ends of the connecting copper bar are respectively abutted against one end of the two copper bars, the connecting copper bar and the copper bars are electrically connected, and the accuracy and reliability of switch operation are improved.

[0019] In one of the embodiments, the pushing assembly further comprises an elastic member, one end of the elastic member is fixed with the piston, and the other end of the elastic member is abutted against the connecting copper bar, the piston further comprises a limiting column, the limiting column is arranged at the lower end of the piston, and the elastic member is sleeved with the limiting column.

[0020] By adopting the technical scheme, the elastic member is arranged to push the connecting copper bar under the pushing force of the piston, and when the two ends of the copper bar are not at the same height, the elastic member can also make the connecting copper bar inclined, so that the connecting copper bar is well electrically connected with the two ends of the copper bar. This design improves the adaptability of the switch to different installation conditions, and can still achieve reliable electrical connection in the case that the installation of the copper bar has a certain height difference. The limiting column is used to limit the movement of the elastic member, so as to ensure the stability and reliability of the elastic member during operation.

[0021] In one of the embodiments, the signal assembly comprises an igniter, the igniter is electrically connected with an external signal and the lower end of the igniter extends into the piston.

[0022] By adopting the technical scheme, the igniter of the signal assembly is electrically connected with an external signal, the igniter generates heat through the electrical signal, and then the internal gunpowder generates a chemical reaction to produce gas to push the piston to move downward. This active control mode can quickly and accurately control the closing of the switch according to the external signal, and provides a reliable active protection mechanism for the new energy protection system, which can quickly respond when the system needs, and ensures the safe operation of the system.

[0023] In one of the embodiments, the active signal closing switch of the new energy protection system further comprises a first shell and a second shell, the first shell sleeves the signal assembly and the pushing assembly, the second shell sleeves the connecting assembly and the inner base, and the first shell and the second shell are sealingly fixed.

[0024] By adopting the technical scheme, the sealing and fixed design of the first shell and the second shell effectively prevents the gas generated by the igniter from running out. If the gas leaks, the piston cannot obtain enough pushing force to move downward, so that the switch is difficult to close, and the normal function of the switch is affected. The shell can also protect the internal signal assembly, the pushing assembly, the connecting assembly and the inner base and other components, prevent dust, moisture, impurities and other external factors from entering the switch, and prevent damage to the internal components.

[0025] In one of the embodiments, the piston is further provided with a sealing ring, which is fixed in abutment with the first shell.

[0026] By adopting the above technical solution, when the igniter pushes the piston downward with the sealing ring, until the connecting copper bar is in conduction with the copper bars, the sealing ring is in abutment with the inner wall surface of the first shell and is stuck, effectively preventing the piston from moving upward. This ensures the stability of the switch in the closed state, avoiding the disconnection of the circuit or other faults caused by the movement of the piston. The sealing ring can also block the gap between the first shell and the piston, preventing the gas generated by the igniter from leaking.

[0027] In one of the embodiments, the copper bar is provided with a connecting hole away from one end of the pushing assembly.

[0028] By adopting the above technical solution, through the connecting hole, the copper bar can be connected with the external circuit stud, or the external circuit is directly inserted into the connecting hole for conduction. This connection mode facilitates the connection of the switch with the external circuit, improves the flexibility and convenience of installation, and can adapt to different circuit connection requirements.

[0029] In summary, the present application at least includes the following beneficial effects:

[0030] 1. The external signal is received by the signal assembly to control the downward movement of the pushing assembly, so that the connecting copper bar is in conduction with the two copper bars, thereby realizing the closed circuit between the two copper bars. This closed switch can actively connect the circuit in less than 1ms under the excitation of the external control signal, providing safety protection for the subsequent protection, and providing a reliable circuit connection control means for the new energy protection system, ensuring the normal operation of the system.

[0031] 2. The insulating barrier piece is perfectly matched with the inner base and is arranged at the upper and lower ends of the copper bar in the normal non-closed circuit state, effectively preventing the risk of creepage between the copper bar and the connecting copper bar, preventing circuit short circuit or other faults, and improving the insulation performance of the switch, ensuring the safe operation of the circuit. The break at both ends of the insulating barrier piece can be easily pushed apart by the pushing assembly, ensuring that the switch can be reliably conducted when it needs to be closed.

[0032] 3. When the igniter pushes the piston downward with the sealing ring, until the connecting copper bar is in conduction with the copper bars, the sealing ring is in abutment with the inner wall surface of the first shell and is stuck, effectively preventing the piston from moving upward. This ensures the stability of the switch in the closed state, avoiding the disconnection of the circuit or other faults caused by the movement of the piston. The sealing ring can also block the gap between the first shell and the piston, preventing the gas generated by the igniter from leaking. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1It is a whole structure schematic diagram of the active signal closed circuit switch of the new energy protection system provided in the embodiment of the present application.

[0034] Figure 2 It is a structure schematic diagram of the inner base provided in the embodiment of the present application.

[0035] Figure 3 It is a structure schematic diagram of the copper bar arranged in the inner base provided in the embodiment of the present application.

[0036] Figure 4 It is a three-dimensional structure schematic diagram of the insulation barrier sheet provided in the embodiment of the present application.

[0037] Fig. 5 (a) and Fig. 5 (b) are respectively a front and back structure schematic diagram of the connecting copper bar provided in the embodiment of the present application.

[0038] Figure 6 It is a structure schematic diagram of the pushing assembly provided in the embodiment of the present application.

[0039] Figure 7 It is a structure schematic diagram of the signal assembly provided in the embodiment of the present application.

[0040] Figure 8 It is a cross-sectional schematic diagram of the active signal closed circuit switch of the new energy protection system provided in the embodiment of the present application.

[0041] Mark explanation: 1, the active signal closed circuit switch of the new energy protection system; 11, the inner base; 111, the containing space; 112, the protruding block; 113, the containing groove; 114, the positioning column; 12, the connecting assembly; 121, the copper bar; 1211, the second boss; 1212, the connecting hole; 122, the insulation barrier sheet; 1221, the fracture; 13, the pushing assembly; 131, the connecting copper bar; 1311, the first boss; 1312, the positioning groove; 132, the piston; 1321, the limiting column; 1322, the sealing ring; 133, the abutment part; 1331, the connecting block; 1332, the baffle; 134, the elastic piece; 14, the signal assembly; 141, the fire starter; 142, the signal interface; 15, the first shell; 16, the second shell. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying Figures 1-8 The active signal closed circuit switch of the new energy protection system provided in the present application is further described in detail.

[0043] Embodiment 1

[0044] Please refer to Figures 1-8 The active signal closed circuit switch 1 of the new energy protection system provided in the embodiment of the present application includes the inner base 11, the connecting assembly 12, the pushing assembly 13 and the signal assembly 14.

[0045] As shown in Figures 1 to 4 , the connecting assembly 12 is fixedly connected with the inner base 11, and the connecting assembly 12 comprises two copper bars 121 arranged on opposite sides of the inner base 11 respectively, and the two copper bars 121 are electrically connected with external circuits respectively. Specifically, the inner base 11 is internally hollowed to form a containing space 111 for placing components. Two opposite spaced protrusions 112 are arranged in the space, and each protrusion 112 is provided with a containing groove 113 at the top for supporting one end of the copper bar 121. At least two positioning columns 114 are vertically arranged on each protrusion 112 and pass through the pre-holes on the copper bar 121 to prevent deviation. This design not only simplifies the assembly process, but also improves the overall rigidity and reduces the possibility of loosening caused by vibration. The copper bar 121 can be made of brass or tin bronze. The former has good corrosion resistance, and the latter has high strength and excellent electrical conductivity. The end of the copper bar 121 close to the inner base 11 is injection molded together with the protrusion 112, without gaps, which facilitates the fixation of the copper bar 121. Each copper bar 121 is provided with a connecting hole 1212 at the end away from the inner base 11, which facilitates the connection with other electrical elements. The hole diameter can be adjusted according to actual needs and is suitable for bolt connection or other forms of quick plug-in interface. The copper bar 121 can be bent or arranged horizontally.

[0046] As shown in FIG. 5(a), FIG. 5(b) and Figure 6 , the pushing assembly 13 is located above the connecting assembly 12 and is provided with a connecting copper bar 131, and the two ends of the connecting copper bar 131 can be conductive with the two copper bars 121. Specifically, the core of the pushing assembly 13 is a piston 132. The piston 132 is preferably made of insulating material, which is light in weight and high in strength, and is beneficial to the optimization of dynamic performance. The piston 132 is provided at the bottom with a specially-structured abutting portion 133, which can include two connecting blocks 1331 oppositely arranged at the bottom of the piston 132 and a baffle 1332 connecting the two connecting blocks 1331, and the connecting copper bar 131 is placed on the baffle 1332. The two ends of the connecting copper bar 131 can be provided with first bosses 1311, and one end of the copper bar 121 close to the connecting copper bar 131 is also provided with a second boss 1211, and the two first bosses 1311 are respectively abutted with the corresponding second bosses 1211 to realize the conduction of the two copper bars 121. The connecting copper bar 131 itself can be made of red copper and treated with nickel plating on the surface to increase the oxidation resistance. To adapt to different scene requirements, it can also be replaced by a silver-copper alloy part.

[0047] The connecting assembly 12 can further include an insulating barrier sheet 122, which is installed right above the copper bar 121, and both ends of the insulating barrier sheet 122 are provided with reserved breaking points 1221 for facilitating force tearing and separation. The positioning columns 114 are respectively arranged through both ends of the insulating barrier sheet 122 to fix the insulating barrier sheet 122 on the inner base 11, so as to prevent the insulating barrier sheet 122 from moving. The main body of the barrier sheet is made of laminated and pressed polyimide film, and has a thickness of about 0.5 mm to 1 mm, and has excellent dielectric properties and high-temperature resistance. Under normal conditions, the insulating barrier sheet 122 covers the top surface of the copper bar 121, and the protrusions 112 cover the two side surfaces of the copper bar 121, so as to prevent the occurrence of the creeping phenomenon between the copper bar 121 and the connecting copper bar 131.

[0048] The pushing assembly 13 can further include an elastic member 134. Specifically, the elastic member 134 is arranged between the two connecting blocks 1331, one end of the elastic member 134 is fixed to the bottom of the piston 132, and the other end of the elastic member 134 is pressed against the contact surface of the connecting copper bar 131. The bottom of the piston 132 is further provided with a limiting column 1321, and the elastic member 134 is sleeved on the limiting column 1321, so as to ensure that the elastic member 134 will not move and deform during the stretching and contracting process. The limiting column 1321 is also made of plastic material, and has a diameter slightly smaller than the inner diameter of the spring, so as to ensure sufficient guiding accuracy. In the embodiment, the connecting copper bar 131 is further provided with a positioning groove 1312, and the other end of the elastic member 134 is arranged in the positioning groove 1312, so as to prevent the elastic member 134 from deviating. When there is a certain difference in the height of the two copper bars 121, the elastic member 134 can adjust the angle deviation by moderate compression or stretching, so that the connecting copper bar 131 and the copper bar 121 can be well connected, thereby ensuring reliable contact.

[0049] As shown in Figure 7 , the signal assembly 14 is arranged at the top end of the pushing assembly 13, and is used for receiving external signals to control the action of the pushing assembly 13, and finally realizes the connection between the connecting copper bar 131 and the two copper bars 121. Specifically, the signal assembly 14 mainly includes a fire starter 141, which is internally provided with a micro bridge wire heating source. The fire starter 141 activates the decomposition reaction of the electric explosive agent by a short pulse current, releases high-pressure gas to push the piston 132 to perform subsequent actions. The shell of the fire starter 141 is recommended to be made of ceramic matrix composite material, which can maintain structural integrity in an extreme temperature range. In the embodiment, the signal assembly 14 further includes a signal interface 142, an external signal cable is arranged in the signal interface 142, and the fire starter 141 is arranged through the signal interface 142. The external signal is transmitted to the fire starter 141 through the signal interface 142.

[0050] As shown in Figure 8As shown, in order to enhance the overall sealing of the device, the new energy protection system active signal closed circuit switch 1 further comprises a first housing 15 and a second housing 16. The first housing 15 is sleeved with the signal assembly 14 and the pushing assembly 13, and the second housing 16 is sleeved with the connecting assembly 12 and the inner base 11, both of which are sealed and fixed together to protect the internal devices. The outer periphery of the piston 132 is provided with a sealing ring 1322, which is tightly attached to the first housing 15, thereby avoiding leakage of high-pressure gas generated by the igniter 141 and preventing foreign matter from entering to affect the normal operation of the equipment.

[0051] The connecting assembly 12 can further include a fixing member sleeved with the inner base 11, and the second housing 16 is sleeved with the fixing member, one end of the two copper bars 121 extends into the fixing member and is fixed with the inner base 11, and the fixing member is fixed with the first housing 15 and the second housing 16, so that the overall structure is more stable.

[0052] The implementation principle of the embodiment is: when the signal assembly 14 receives an external signal, the igniter 141 generates heat to cause an internal chemical reaction to generate gas, driving the piston 132 to move downward, the baffle 1332 at the lower end of the piston 132 can press and break the middle part of the insulating barrier 122 and make it fall into the containing space 111, the connecting copper bar 131 is abutted by the elastic member 134 so that the first bosses 1311 at both ends are respectively abutted with the second bosses 1211 of the copper bars 121 to conduct, realizing the closed circuit of the circuit, then the sealing ring 1322 on the piston 132 is tightly abutted and fixed with the first housing 15, preventing the piston 132 from being pushed upward by the elastic member 134. The action time of the entire process is within 1ms, which greatly shortens the delay time, and multiple protection measures effectively curb potential safety hazards. In addition, the overall volume is small, and can be applied to various scenes.

[0053] The above are preferred embodiments of the present application, and are not limited to the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A new energy protection system active type signal closed circuit switch, characterized in that, The utility model relates to a kind of signal transmission device, including: Inner base (11); Connecting assembly (12) is fixed with the inner base (11), the connecting assembly (12) includes two copper bars (121), two the copper bar (121) is located at the opposite sides of inner base (11) and is connected with external circuit respectively; Pushing assembly (13) is located at the upper end of the connecting assembly (12), and the pushing assembly (13) is provided with connecting copper bar (131); Signal assembly (14) is located at the upper end of the pushing assembly (13), and the signal assembly (14) is electrically connected with external signal, and the signal assembly (14) can control the pushing assembly (13) to descend after receiving external signal, so that the connecting copper bar (131) is conducted with two the copper bar (121).

2. A new energy protection system active type signal closed circuit switch according to claim 1, characterized in that, Two ends of the connecting copper bar (131) are provided with first boss (1311), and one end of each copper bar (121) is provided with second boss (1211) close to the connecting copper bar (131), and the first boss (1311) is abutted and conducted with the second boss (1211).

3. A new energy protection system active type signal closed circuit switch according to claim 1, characterized in that, The inner base (11) is hollow in the inside and is provided with accommodating space (111), the accommodating space (111) is provided with two opposite interval bosses (112), the upper end of each boss (112) is recessed to be provided with accommodating groove (113), the accommodating groove (113) is further provided with positioning column (114), and one end of the copper bar (121) is located in the accommodating groove (113) corresponding to it, and the positioning column (114) is penetrated through the copper bar (121).

4. A new energy protection system active type signal closed circuit switch according to claim 3, characterized in that, The connecting assembly (12) further includes insulating barrier sheet (122), the insulating barrier sheet (122) is located at the upper end of the copper bar (121) and two ends are penetrated by the positioning column (114) corresponding to it respectively, two ends of the insulating barrier sheet (122) are provided with break (1221), and the pushing assembly (13) can descend and push the middle part of the insulating barrier sheet (122), so that the connecting copper bar (131) is conducted with the copper bar (121).

5. A new energy protection system active type signal closed circuit switch according to claim 4, characterized in that, The pushing assembly (13) further includes piston (132), the lower end of the piston (132) is provided with abutment (133), the abutment (133) is penetrated in the middle, the connecting copper bar (131) is located in the abutment (133), and the abutment (133) can push the middle part of the insulating barrier sheet (122) and be located between two bosses (112).

6. A new energy protection system active type signal closed circuit switch according to claim 5, characterized in that, The pushing assembly (13) further includes elastic member (134), one end of the elastic member (134) is fixed with the piston (132), the other end is abutted with the connecting copper bar (131), and the piston (132) further includes limiting column (1321), the limiting column (1321) is located at the lower end of the piston (132), and the elastic member (134) is sleeved with the limiting column (1321).

7. A new energy protection system active type signal closed circuit switch according to claim 5, characterized in that, The signal assembly (14) includes igniter (141), the igniter (141) is electrically connected with external signal and lower end extends into the piston (132).

8. A new energy protection system active type signal closed circuit switch according to claim 7, characterized in that, The new energy protection system active signal closed circuit switch (1) further comprises a first shell (15) and a second shell (16), the first shell (15) is sleeved with the signal assembly (14) and the pushing assembly (13), the second shell (16) is sleeved with the connecting assembly (12) and the inner base (11), and the first shell (15) and the second shell (16) are sealingly fixed.

9. A new energy protection system active type signal closed circuit switch according to claim 8, characterized in that, The piston (132) is further provided with a sealing ring (1322) which is abuttingly fixed with the first shell (15).

10. The new energy protection system active signal closed circuit switch according to claim 1, characterized in that, The copper bar (121) is provided with a connecting hole (1212) at one end away from the pushing assembly (13).

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