CN112600183A

CN112600183A - Pressure-sensitive chip and surge protection device comprising same

Info

Publication number: CN112600183A
Application number: CN202011527429.8A
Authority: CN
Inventors: 王国秋; 黄坚; 陈璀
Original assignee: Hunan Qitai Sensing Technology Co ltd
Current assignee: Hunan Qitai Sensing Technology Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-04-02
Anticipated expiration: 2040-12-22
Also published as: CN112600183B

Abstract

The invention relates to a pressure-sensitive chip and a surge protector comprising the same, belonging to the technical field of electrical equipment and comprising an installation frame, a pressure-sensitive chip body and a surge protector body, wherein the left side surface of the installation frame is provided with an installation shell, the pressure-sensitive chip body is inserted in the installation shell, the left side surface of the pressure-sensitive chip body is lapped with a rubber plate, the left side surface of the rubber plate is provided with a plurality of grooves, and springs are arranged in the grooves. This pressure-sensitive chip reaches surge protector including this pressure-sensitive chip, through the mode installation pressure-sensitive chip body that adopts the grafting, utilize inserted sheet electrode and electrode splicing to contact each other for pressure-sensitive chip body and surge protector body lug connection avoid traditional welding mode, thereby increased the efficiency of installation, practiced thrift the consumption of copper product, reduced the cost of manufacture of pressure-sensitive chip body, make the inserted sheet electrode be difficult for receiving the damage simultaneously, increased self-protection performance.

Description

Pressure-sensitive chip and surge protection device comprising same

Technical Field

The invention relates to the technical field of electrical equipment, in particular to a pressure-sensitive chip and a surge protection device comprising the same.

Background

With the development of science and technology, more and more electrical equipment are used by people. When the electrical equipment works, a sudden voltage which is extremely short in maintenance time but has a high peak value easily appears, and the high voltage causes great destructiveness to the components of the electrical equipment, so that the electrical equipment in a line needs to be protected by adopting a surge protector.

Chinese patent publication No.: CN 202258603U. A voltage-sensitive chip and a surge protector including the same are disclosed. It can be seen that the surge protector device has the following problems:

when installing pressure-sensitive chip among surge protector, be connected with surge protector electricity through the feeler pin on the pressure-sensitive chip, adopt the welding mode just can accomplish the installation, it is comparatively troublesome to lead to the installation like this, the feeler pin can consume a large amount of copper products simultaneously, and harm in the transportation easily, be difficult to preserve, increase manufacturing cost, and current surge protector can't carry out the self-detection, after voltage surge, people can't accurate judgement surge protector whether have potential problem, cause surge protector life weak point.

Disclosure of Invention

Therefore, the invention provides a voltage-sensitive chip and a surge protector comprising the same, which are used for overcoming the problem of short service life of the surge protector in the prior art.

The invention provides a pressure-sensitive chip and surge protector comprising the same, comprising: the surge protector comprises an installation frame, a pressure-sensitive chip body and a surge protector body;

the left side surface of the mounting frame is provided with a mounting shell, a pressure-sensitive chip body is inserted in the mounting shell, a rubber plate is lapped on the left side surface of the pressure-sensitive chip body, a plurality of grooves are formed in the left side surface of the rubber plate, springs are arranged in the grooves, the left ends of the springs are lapped on the left side surface of the inner wall of the mounting shell, a surge protector body is arranged in the mounting frame, and the left side surface of the surge protector body is lapped on the right side surface of the pressure-sensitive chip body;

the pressure-sensitive chip body comprises a circuit board, the circuit board is inserted in the mounting shell, an insert sheet electrode is arranged on the rear side of the right side face of the circuit board, and the insert sheet electrode is lapped on the left side face of the surge protector body;

the surge protector body comprises a surge protector main body, the surge protector main body is clamped in the mounting frame, an electrode connecting piece is arranged on the left side surface of the surge protector main body corresponding to the position of the inserting piece electrode, a switch is arranged on the right side surface of the surge protector main body, and a fault indicator lamp is arranged beside the switch;

the upper surface and the lower surface of the inner wall of the mounting frame are respectively provided with a limiting block, and the two limiting blocks are respectively clamped on the left side surface of the surge protector body;

screws are arranged on the right sides of the upper surface and the lower surface of the mounting frame, and opposite ends of the two screws are respectively lapped on the upper surface and the lower surface of the surge protector body;

a sealing strip is fixedly connected above the front face of the mounting shell, and the back face of the sealing strip is clamped on the front face of the mounting shell;

the surge protector is in wireless connection with a central control module, the surge protector performs self-detection after voltage surge occurs, the central control module is used for controlling the self-detection process of the surge protector, and a matrix is arranged in the central control module;

when the surge protector carries out self-detection, the central control module firstly detects whether the pressure-sensitive chip body is damaged or not, then detects whether the pressure-sensitive chip body is in poor contact with the mounting shell or not, and finally detects whether the main body of the surge protector is damaged or not, and lights the corresponding indicator light after each detection is finished.

Further, a preset instantaneous voltage matrix Vk0, a preset instantaneous current matrix Ik0, a preset voltage-sensitive chip maximum current matrix Ij0 and a preset voltage-sensitive chip material type matrix A0 are arranged in the central control module;

setting Vk0(Vk1, Vk2, Vk3 and Vk4) for the preset instantaneous voltage matrix Vk0, wherein Vk1 is a first preset instantaneous voltage, Vk2 is a second preset instantaneous voltage, Vk3 is a third preset instantaneous voltage, Vk4 is a fourth preset instantaneous voltage, and the preset instantaneous voltages are gradually increased in sequence;

setting Ik0(Ik1, Ik2, Ik3 and Ik4) for the preset instantaneous current matrix Ik0, wherein Ik1 is a first preset instantaneous current, Ik2 is a second preset instantaneous current, Ik3 is a third preset instantaneous current, Ik4 is a fourth preset instantaneous current, and the preset instantaneous currents are gradually increased in sequence;

when the central control module selects the instantaneous current Ik, the central control module compares the instantaneous voltage Vk received when the voltage surge occurs with the parameters in the preset instantaneous voltage matrix Vk0, and selects the corresponding instantaneous current from the preset instantaneous current matrix Ik0 according to the comparison result:

when Vk1 is larger than Vk and is not larger than Vk2, the central control module selects Ik1 as instantaneous current;

when Vk2 is larger than Vk and is not larger than Vk3, the central control module selects Ik2 as instantaneous current;

when Vk3 is larger than Vk and is not larger than Vk4, the central control module selects Ik3 as instantaneous current;

when Vk4 is less than Vk, the central control module selects Ik4 as instantaneous current;

setting Ij0(Ij1, Ij2, Ij3 and Ij4) for the preset pressure-sensitive chip maximum current matrix Ij0, wherein Ij1 is a first preset pressure-sensitive chip maximum current, Ij2 is a second preset pressure-sensitive chip maximum current, Ij3 is a third preset pressure-sensitive chip maximum current, Ij4 is a fourth preset pressure-sensitive chip maximum current, and the preset pressure-sensitive chip maximum currents are gradually increased in sequence;

for the preset pressure sensitive chip material kind matrix a0, a0(a1, a2, A3, a4) is set, wherein a1 is a first preset pressure sensitive chip material kind, a2 is a second preset pressure sensitive chip material kind, A3 is a third preset pressure sensitive chip material kind, and a4 is a fourth preset pressure sensitive chip material kind;

when the central control module selects the maximum current of the pressure-sensitive chip, the central control module selects the corresponding maximum current Ij of the pressure-sensitive chip according to the actual type Ai of the pressure-sensitive chip material:

when the preset pressure-sensitive chip material type is Ai, setting i to be 1,2,3 and 4, and presetting the maximum current of the pressure-sensitive chip to Iji by the central control module;

when the surge protector carries out self-detection, the central control module compares the selected instantaneous current Ik with the maximum current Ij of the voltage-sensitive chip and judges whether the voltage-sensitive chip body is damaged or not according to the comparison result:

when Ik is less than or equal to Ij, the central control module judges that the pressure-sensitive chip body is not damaged, carries out the next detection, and sets the fault indicator lamp to be in a green flashing state;

when Ik is larger than Ij, the central control module judges that the pressure-sensitive chip body is damaged and sets the fault indicator lamp to be red.

Furthermore, a preset instantaneous current regulation coefficient matrix m0 and a preset pressure-sensitive chip impedance matrix Z0 are also arranged in the central control module;

setting m0(m1, m2, m3 and m4) for the preset instantaneous current adjustment coefficient matrix m0, wherein m1 is a first preset instantaneous current adjustment coefficient, m2 is a second preset instantaneous current adjustment coefficient, m3 is a third preset instantaneous current adjustment coefficient, m4 is a fourth preset instantaneous current adjustment coefficient, and the preset instantaneous current adjustment coefficients are gradually increased in sequence;

for the preset pressure-sensitive chip impedance matrix Z0, Z0(Z1, Z2, Z3 and Z4) is set, wherein Z1 is a first preset pressure-sensitive chip impedance, Z2 is a second preset pressure-sensitive chip impedance, Z3 is a third preset pressure-sensitive chip impedance, Z4 is a fourth preset pressure-sensitive chip impedance, and the preset pressure-sensitive chip impedances gradually increase in sequence;

when the central control module adjusts the preselected instantaneous current Iki, setting i to be 1,2,3,4, comparing the pressure-sensitive chip impedance Z with the parameters in the preset pressure-sensitive chip impedance matrix Z0, and selecting the corresponding instantaneous current adjustment coefficient from the preset instantaneous current adjustment coefficient matrix m0 according to the comparison result to adjust the Iki:

when Z is not more than Z1, the central control module selects m1 to adjust Iki;

when Z is more than Z1 and less than or equal to Z2, m2 is selected by the central control module to adjust Iki;

when Z is more than Z2 and less than or equal to Z3, m3 is selected by the central control module to adjust Iki;

when Z is more than Z3 and less than or equal to Z4, m4 is selected by the central control module to adjust Iki;

when the central control module selects mj to adjust the preselected Iki, setting j to be 1,2,3 and 4, and setting Iki' to be Iki multiplied by mj after adjustment.

Furthermore, a preset instantaneous current regulation coefficient correction coefficient matrix B0 and a preset voltage surge action time matrix T0 are also arranged in the central control module;

setting B0(B1, B2, B3 and B4) for the preset instantaneous current regulation coefficient correction coefficient matrix B0, wherein B1 is a first preset instantaneous current regulation coefficient correction coefficient, B2 is a second preset instantaneous current regulation coefficient correction coefficient, B3 is a third preset instantaneous current regulation coefficient correction coefficient, B4 is a fourth preset instantaneous current regulation coefficient correction coefficient, and the preset instantaneous current regulation coefficient correction coefficients are gradually increased in sequence;

setting T0(T1, T2, T3 and T4) for the preset voltage surge action time matrix T0, wherein T1 is a first preset voltage surge action time, T2 is a second preset voltage surge action time, T3 is a third preset voltage surge action time, T4 is a fourth preset voltage surge action time, and the preset voltage surge action times are gradually increased in sequence;

when the central control module corrects the preselected instantaneous current regulation coefficient mj, the central control module compares the voltage surge acting time T with the parameters in the preset voltage surge acting time matrix T0, and selects the corresponding instantaneous current regulation coefficient correction coefficient from the preset instantaneous current regulation coefficient correction coefficient matrix B0 according to the comparison result to correct mj:

when T is less than or equal to T1, the central control module selects B1 to correct mj;

when T is more than T1 and less than or equal to T2, the central control module selects B2 to correct mj;

when T is more than T2 and less than or equal to T3, the central control module selects B3 to correct mj;

when T is more than T3 and less than or equal to T4, the central control module selects B4 to correct mj;

when the central control module selects Bk to adjust the preselected mj, k is set to 1,2,3 and 4, and the adjusted instantaneous current adjustment coefficient is mj ', and mj' is set to mj × Bk.

Further, a preset voltage-sensitive chip maximum current adjustment coefficient matrix n0 is further arranged in the central control module, and n0(n1, n2, n3, n4) is set, wherein n1 is a first preset voltage-sensitive chip maximum current adjustment coefficient, n2 is a second preset voltage-sensitive chip maximum current adjustment coefficient, n3 is a third preset voltage-sensitive chip maximum current adjustment coefficient, n4 is a fourth preset voltage-sensitive chip maximum current adjustment coefficient, and the preset voltage-sensitive chip maximum current adjustment coefficients are gradually increased in sequence;

when the central control module adjusts the preselected maximum current Iji of the pressure-sensitive chip, the central control module compares the impedance Z of the pressure-sensitive chip with the parameters in the preset impedance matrix Z0 of the pressure-sensitive chip, and selects the corresponding maximum current adjustment coefficient of the pressure-sensitive chip from the preset maximum current adjustment coefficient matrix n0 of the pressure-sensitive chip according to the comparison result to adjust Iji:

when Z is not more than Z1, the central control module selects n1 to regulate Iji;

when Z is more than Z1 and less than or equal to Z2, the central control module selects n2 to adjust Iji;

when Z is more than Z2 and less than or equal to Z3, the central control module selects n3 to adjust Iji;

when Z is more than Z3 and less than or equal to Z4, the central control module selects n4 to adjust Iji;

when the central control module selects nj to adjust the preselected Iji, j is set to be 1,2,3 and 4, the maximum current of the pressure-sensitive chip after adjustment is Iji ', and Iji' is set to be Iji × nj.

Furthermore, a preset pressure-sensitive chip size matrix D0 and a preset pressure-sensitive chip and mounting shell pressure matrix F0 are also arranged in the central control module;

setting D0(D1, D2, D3 and D4) for the preset pressure sensitive chip size matrix D0, wherein D1 is a first preset pressure sensitive chip size, D2 is a second preset pressure sensitive chip size, D3 is a third preset pressure sensitive chip size, D4 is a fourth preset pressure sensitive chip size, and the preset pressure sensitive chip sizes are gradually increased in sequence;

setting F0(F1, F2, F3 and F4) for the preset pressure-sensitive chip and mounting shell pressure matrix F0, wherein F1 is first preset pressure-sensitive chip and mounting shell pressure, F2 is second preset pressure-sensitive chip and mounting shell pressure, F3 is third preset pressure-sensitive chip and mounting shell pressure, F4 is fourth preset pressure-sensitive chip and mounting shell pressure, and the preset pressure-sensitive chips and the mounting shell pressure gradually increase in sequence;

when the central control module selects the ith pressure-sensitive chip and the mounting shell pressure Fi, setting i to be 1,2,3 and 4, comparing the pressure-sensitive chip size D with the parameters in the preset pressure-sensitive chip size matrix D0 by the central control module, and selecting the corresponding pressure-sensitive chip and the mounting shell pressure from the F0 matrix according to the comparison result:

when D is not more than D1, the central control module selects F1 as the pressure of the pressure sensitive chip and the mounting shell;

when D is more than D1 and less than or equal to D2, F2 is selected as the pressure of the pressure sensitive chip and the mounting shell by the central control module;

when D is more than D2 and less than or equal to D3, F3 is selected as the pressure of the pressure sensitive chip and the mounting shell by the central control module;

when D is more than D3 and less than or equal to D4, F4 is selected as the pressure of the pressure sensitive chip and the mounting shell by the central control module;

when the surge protector carries out self-detection, the central control module compares the actual pressure-sensitive chip after voltage surge with the installation shell pressure F and Fi, and judges whether the pressure-sensitive chip body is in poor contact with the installation shell according to the comparison result:

when F is larger than or equal to Fi, the central control module judges that the contact between the pressure-sensitive chip body and the mounting shell is good, carries out next detection and sets the fault indicator lamp to be in a green flashing state;

when F is less than Fi, the central control module judges that the pressure-sensitive chip body is in poor contact with the installation shell, and sets the fault indicator lamp to be yellow.

Furthermore, a preset pressure-sensitive chip and mounting shell pressure regulation coefficient matrix C0 and a preset spring number matrix G0 are also arranged in the central control module;

setting C0(C1, C2, C3 and C4) for the preset pressure-sensitive chip and mounting shell pressure regulating coefficient matrix C0, wherein C1 is a first preset pressure-sensitive chip and mounting shell pressure regulating coefficient, C2 is a second preset pressure-sensitive chip and mounting shell pressure regulating coefficient, C3 is a third preset pressure-sensitive chip and mounting shell pressure regulating coefficient, C4 is a fourth preset pressure-sensitive chip and mounting shell pressure regulating coefficient, and the preset pressure-sensitive chips and the mounting shell pressure regulating coefficients are gradually increased in sequence;

for the preset spring number matrix G0, setting G0(G1, G2, G3, G4), wherein G1 is a first preset spring number, G2 is a second preset spring number, G3 is a third preset spring number, G4 is a fourth preset spring number, and the preset spring numbers are gradually increased in sequence;

when the central control module adjusts the pressure of the pressure-sensitive chip and the pressure Fi of the installation shell, the central control module compares the number of the springs G with the parameters in the preset spring number matrix G0, and selects the corresponding pressure-sensitive chip and the pressure adjusting coefficient of the installation shell according to the comparison result to adjust the Fi:

when G is not more than G1, the central control module selects C1 to adjust Fi;

when G is more than G1 and less than or equal to G2, the central control module selects C2 to adjust Fi;

when G is more than G2 and less than or equal to G3, the central control module selects C3 to adjust Fi;

when G is more than G3 and less than or equal to G4, the central control module selects C4 to adjust Fi;

when the central control module selects Cj to adjust the preselected Fi, j is set to be 1,2,3 and 4, and the pressure of the pressure sensitive chip and the mounting shell after adjustment is set to be Fi ', and Fi' is set to be Fi multiplied by Cj.

Further, a preset spring number correction coefficient matrix L0 and a preset spring size matrix Q0 are further arranged in the central control module;

for the preset spring number correction coefficient matrix L0, setting L0(L1, L2, L3, L4), where L1 is a first preset spring number correction coefficient, L2 is a second preset spring number correction coefficient, L3 is a third preset spring number correction coefficient, and L4 is a fourth preset spring number correction coefficient, and the preset spring number correction coefficients are gradually increased in sequence;

setting Q0(Q1, Q2, Q3 and Q4) for the preset spring size matrix Q0, wherein Q1 is a first preset spring size, Q2 is a second preset spring size, Q3 is a third preset spring size, Q4 is a fourth preset spring size, and the preset spring sizes are gradually increased in sequence;

when the central control module corrects the pre-selected spring quantity Gi, setting i to be 1,2,3,4, comparing the spring size Q with the parameters in the preset spring size matrix Q0 by the central control module, and selecting a corresponding spring quantity correction coefficient from an L0 matrix according to the comparison result to correct Gi:

when Q is not more than Q1, the central control module selects L1 to correct Gi;

when Q is more than Q1 and less than or equal to Q2, the central control module selects L2 to correct Gi;

when Q is more than Q2 and less than or equal to Q3, the central control module selects L3 to correct Gi;

when Q is more than Q3 and less than or equal to Q4, the central control module selects L4 to correct Gi;

when the central control module selects Lj to adjust the preselected Gi, j is set to be 1,2,3 and 4, and the number of the adjusted springs is Gi 'and Gi' is set to be Gi × Lj.

Furthermore, a preset surge protector main body standard current matrix Im0 and a preset surge protector main body resistance value matrix R0 are also arranged in the central control module;

setting Im0(Im1, Im2, Im3 and Im4) for the preset surge protector body standard current matrix Im0, wherein Im1 is a first preset surge protector body standard current, Im2 is a second preset surge protector body standard current, Im3 is a third preset surge protector body standard current, Im4 is a fourth preset surge protector body standard current, and the preset surge protector body standard currents are gradually increased in sequence;

for the preset surge protector body resistance value matrix R0, setting R0(R1, R2, R3, R4), where R1 is a first preset surge protector body resistance value, R2 is a second preset surge protector body resistance value, R3 is a third preset surge protector body resistance value, and R4 is a fourth preset surge protector body resistance value, and the preset surge protector body resistance values gradually increase in sequence;

when the central control module selects the standard current of the main body of the surge protector, the central control module compares the actual main body resistance value R of the surge protector with the parameters in the preset main body resistance value matrix R0 of the surge protector, and selects the corresponding standard current of the main body of the surge protector according to the comparison result:

when R is not more than R1, selecting Im1 as the standard current of the main body of the surge protector by the central control module;

when R is greater than R1 and less than or equal to R2, the center control module selects Im2 as the standard current of the main body of the surge protector;

when R is greater than R2 and less than or equal to R3, the center control module selects Im3 as the standard current of the main body of the surge protector;

when R is greater than R3 and less than or equal to R4, the center control module selects Im4 as the standard current of the main body of the surge protector;

when the surge protector carries out self-detection, the central control module compares the current Im passing through the main body of the surge protector with the Imi after the voltage surge is finished, and judges whether the main body of the surge protector is damaged or not according to the comparison result:

when Im is less than or equal to Imi, the central control module judges that the main body of the surge protector is not damaged, the detection is finished, and the fault indicator lamp is set to be green;

and when Imi is less than Im, the central control module judges that the main body of the surge protector is damaged and sets the fault indicator lamp to be blue.

Furthermore, a preset surge protector main body size matrix H0 and a surge protector main body standard current regulation coefficient matrix E0 are also arranged in the central control module;

setting H0(H1, H2, H3 and H4) for the preset surge protector body size matrix H0, wherein H1 is the first preset surge protector body size, H2 is the second preset surge protector body size, H3 is the third preset surge protector body size, H4 is the fourth preset surge protector body size, and the preset surge protector body sizes are gradually increased in sequence;

setting an E0(E1, E2, E3 and E4) for the standard current regulation coefficient matrix E0 of the main body of the surge protector, wherein E1 is a first preset standard current regulation coefficient of the main body of the surge protector, E2 is a second preset standard current regulation coefficient of the main body of the surge protector, E3 is a third preset standard current regulation coefficient of the main body of the surge protector, E4 is a fourth preset standard current regulation coefficient of the main body of the surge protector, and the standard current regulation coefficients of the main body of the surge protector gradually increase in sequence;

when the central control module adjusts the standard current Imi of the surge protector body selected in advance, i is set to be 1,2,3 and 4, the central control module compares the size H of the surge protector body with the parameters in the H0 matrix, and selects the corresponding standard current adjusting coefficient of the surge protector body according to the comparison result to adjust the Imi:

when H is not more than H1, the central control module selects E1 to adjust Imi;

when H is more than H1 and less than or equal to H2, the central control module selects E2 to adjust Imi;

when H is more than H2 and less than or equal to H3, the central control module selects E3 to adjust Imi;

when H is more than H3 and less than or equal to H4, the central control module selects E4 to adjust Imi;

when the central control module selects Ej to adjust the preselected Imi, setting j to be 1,2,3 and 4, and setting the adjusted standard current of the main body of the surge protector to be Imi', which is Imi multiplied by Ej.

Compared with the prior art, the invention has the beneficial effects that the pressure-sensitive chip body is installed in an inserting mode, and the inserting sheet electrode is contacted with the electrode connecting sheet, so that the pressure-sensitive chip body is directly connected with the surge protector body, and the traditional welding mode is avoided, thereby reducing the operation difficulty of installation, increasing the installation efficiency, simultaneously preventing the inserting sheet electrode from being damaged easily, increasing the self-protection performance, reducing the manufacturing cost of the pressure-sensitive chip body and saving the consumption of copper materials; meanwhile, the surge protector can prolong the service life through self detection;

furthermore, the central control module can obtain the magnitude of the instantaneous current Ik according to the magnitude of the instantaneous voltage Vk during voltage surge, and then compares the instantaneous current Ik with the maximum current Ij of the voltage-sensitive chip so as to judge whether the voltage-sensitive chip body is damaged or not, if the voltage-sensitive chip body is damaged, the fault indicator lamp is bright red, people are prompted to replace the voltage-sensitive chip body, and the service life of the surge protector is further greatly prolonged through self detection;

furthermore, the central control module selects a corresponding instantaneous current adjustment coefficient m to adjust the instantaneous current Ik according to the impedance Z of the voltage-sensitive chip so as to more accurately compare the instantaneous current Ik with the maximum current Ij of the voltage-sensitive chip, thereby judging whether the voltage-sensitive chip body is damaged or not and further effectively prolonging the service life of the surge protector;

furthermore, the central control module selects an instantaneous current regulation coefficient correction coefficient B to correct an instantaneous current regulation coefficient m according to the length of the voltage surge acting time T so as to more accurately compare the instantaneous current Ik with the maximum current Ij of the voltage-sensitive chip, thereby judging whether the voltage-sensitive chip body is damaged or not and further effectively prolonging the service life of the surge protector;

furthermore, the central control module selects the maximum current regulating coefficient n of the voltage-sensitive chip according to the impedance Z of the voltage-sensitive chip to regulate the maximum current Ij of the voltage-sensitive chip so as to more accurately compare the instantaneous current Ik with the maximum current Ij of the voltage-sensitive chip, thereby judging whether the body of the voltage-sensitive chip is damaged or not and further effectively prolonging the service life of the surge protector;

further, the central control module selects a pressure-sensitive chip and an installation shell pressure Fi according to the size of the pressure-sensitive chip dimension D, and then compares the actual pressure-sensitive chip with the installation shell pressure F and the Fi, so that whether the pressure-sensitive chip body and the installation shell are in poor contact is judged, if the pressure-sensitive chip body and the installation shell are in poor contact, the fault indicator lamp is turned on to be yellow, people are prompted to assemble the fault indicator lamp again, and the service life of the surge protector is further effectively prolonged;

furthermore, the central control module selects the pressure-sensitive chip and the mounting shell pressure regulating coefficient C to regulate the pressure-sensitive chip and the mounting shell pressure regulating coefficient according to the quantity G of the springs so as to more accurately compare the actual pressure-sensitive chip and the mounting shell pressure F with the actual mounting shell pressure Fi, thereby judging whether the pressure-sensitive chip body and the mounting shell are in poor contact or not and further effectively prolonging the service life of the surge protector;

furthermore, the central control module selects a spring quantity correction coefficient L to adjust the spring quantity G according to the size of the spring size Q, so as to more accurately compare the pressure F of the actual pressure sensitive chip and the pressure of the installation shell with the pressure Fi, judge whether the pressure sensitive chip body is in poor contact with the installation shell, and further effectively prolong the service life of the surge protector;

furthermore, the central control module selects a standard current Imi of the main body of the surge protector according to the resistance value R of the main body of the surge protector, and then compares the current Im of the main body of the surge protector with the Imi after the surge protector is finished so as to judge whether the main body of the surge protector is damaged or not, if the main body of the surge protector is damaged, the fault indicating lamp is blue, so that people are prompted to replace the main body of the surge protector, and the service life of the surge protector is further effectively prolonged;

furthermore, the central control module selects the corresponding standard current regulation coefficient of the main body of the surge protector according to the size of the main body size H of the surge protector to regulate the standard current of the main body of the surge protector, so as to more accurately compare the current Im passing through the main body of the surge protector with the size of the Imi after the surge is finished, judge whether the main body of the surge protector is damaged, and further effectively prolong the service life of the surge protector.

Drawings

Fig. 1 is a schematic perspective view of a voltage-sensitive chip and a surge protection device including the same according to the present invention;

fig. 2 is a schematic structural diagram of a front cross section of a voltage-sensitive chip and a surge protector including the voltage-sensitive chip according to the present invention;

fig. 3 is a schematic perspective view of a pressure-sensitive chip and a surge protector's pressure-sensitive chip body including the pressure-sensitive chip according to the present invention;

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Fig. 1-3 are a schematic perspective view, a schematic front sectional view, and a schematic perspective view of a pressure-sensitive chip and a surge protection device including the pressure-sensitive chip according to the present invention.

The invention provides a pressure-sensitive chip and surge protector comprising the same, comprising: the surge protector comprises a mounting frame 1, a pressure-sensitive chip body 3 and a surge protector body 8;

the left side surface of the mounting frame 1 is provided with a mounting shell 2, a pressure-sensitive chip body 3 is inserted in the mounting shell 2, the left side surface of the pressure-sensitive chip body 3 is lapped with a rubber plate 4, the left side surface of the rubber plate 4 is provided with a plurality of grooves 5, springs 6 are arranged in the grooves 5, the left ends of the springs 6 are lapped on the left side surface of the inner wall of the mounting shell 2, a surge protector body 8 is arranged in the mounting frame 1, and the left side surface of the surge protector body 8 is lapped on the right side surface of the pressure-sensitive chip body 3; the upper surface and the lower surface of the inner wall of the mounting frame 1 are both provided with limiting blocks 7, and the two limiting blocks 7 are both clamped on the left side surface of the surge protector body 8; screws 9 are arranged on the right sides of the upper surface and the lower surface of the mounting frame 1, and opposite ends of the two screws 9 are respectively lapped on the upper surface and the lower surface of the surge protector body 8; a sealing strip 10 is fixedly connected above the front surface of the mounting shell 2, and the back surface of the sealing strip 10 is clamped on the front surface of the mounting shell 2;

the pressure-sensitive chip body 3 comprises a circuit board 31, the circuit board 31 is inserted in the mounting shell 2, an insert sheet electrode 32 is arranged on the rear side of the right side face of the circuit board 31, and the insert sheet electrode 32 is lapped on the left side face of the surge protector body 8;

the surge protector body 8 comprises a surge protector main body 81, the surge protector main body 81 is clamped in the mounting frame 1, an electrode connecting piece 82 is arranged at the position, corresponding to the inserting piece electrode 32, of the left side surface of the surge protector main body 81, a switch 83 is arranged on the right side surface of the surge protector main body 81, and a fault indicator lamp (not shown in the figure) is arranged beside the switch 83;

Specifically, a preset instantaneous voltage matrix Vk0, a preset instantaneous current matrix Ik0, a preset voltage-sensitive chip maximum current matrix Ij0 and a preset voltage-sensitive chip material type matrix A0 are arranged in the central control module;

The central control module can obtain the magnitude of instantaneous current Ik according to the magnitude of instantaneous voltage Vk during voltage surge, and then compares instantaneous current Ik with the maximum current Ij of the voltage-sensitive chip, thereby judging whether the voltage-sensitive chip body is damaged, if so, the fault indicator lamp is bright red to prompt people to replace the voltage-sensitive chip body, and the service life of the surge protector is greatly prolonged through self-detection.

Specifically, a preset instantaneous current regulation coefficient matrix m0 and a preset pressure-sensitive chip impedance matrix Z0 are further arranged in the central control module;

Specifically, the central control module is also provided with a preset instantaneous current regulation coefficient correction coefficient matrix B0 and a preset voltage surge action time matrix T0;

Specifically, a preset voltage-sensitive chip maximum current adjustment coefficient matrix n0 is further arranged in the central control module, and n0(n1, n2, n3, n4) is set, wherein n1 is a first preset voltage-sensitive chip maximum current adjustment coefficient, n2 is a second preset voltage-sensitive chip maximum current adjustment coefficient, n3 is a third preset voltage-sensitive chip maximum current adjustment coefficient, n4 is a fourth preset voltage-sensitive chip maximum current adjustment coefficient, and the preset voltage-sensitive chip maximum current adjustment coefficients are gradually increased in sequence;

Specifically, a preset pressure-sensitive chip size matrix D0 and a preset pressure-sensitive chip and mounting shell pressure matrix F0 are further arranged in the central control module;

Well accuse module chooses pressure-sensitive chip and installation shell pressure Fi for use according to pressure-sensitive chip size D's size again, compares actual pressure-sensitive chip and installation shell pressure F and Fi to judge whether contact failure is done to pressure-sensitive chip body and installation shell, if contact failure then fault indicator bright yellow, suggestion people assemble it once more, and then effectively improve surge protector's life.

Specifically, a preset pressure-sensitive chip and mounting shell pressure regulation coefficient matrix C0 and a preset spring number matrix G0 are further arranged in the central control module;

when G is not more than G1, the central control module selects C1 to adjust Fi;

Specifically, a preset spring number correction coefficient matrix L0 and a preset spring size matrix Q0 are further arranged in the central control module;

Specifically, a preset surge protector main body standard current matrix Im0 and a preset surge protector main body resistance value matrix R0 are further arranged in the central control module;

Well accuse module chooses surge protector main part standard current Imi for use according to surge protector main part resistance value R's size, compares current Im and Imi through the surge protector main part after finishing the surge again to judge whether the surge protector main part damages, if damage then fault indicator light bright blue, suggestion people change the surge protector main part, thereby effectively improve surge protector's life.

Specifically, a preset surge protector main body size matrix H0 and a surge protector main body standard current regulation coefficient matrix E0 are further arranged in the central control module;

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A voltage-sensitive chip and a surge protector comprising the same are characterized by comprising: the surge protector comprises an installation frame, a pressure-sensitive chip body and a surge protector body;

2. The voltage-sensitive chip and the surge protector comprising the same as claimed in claim 1, wherein the central control module is provided with a preset instantaneous voltage matrix Vk0, a preset instantaneous current matrix Ik0, a preset voltage-sensitive chip maximum current matrix Ij0 and a preset voltage-sensitive chip material type matrix a 0;

3. The voltage-sensitive chip and the surge protector comprising the same as claimed in claim 2, wherein the central control module further comprises a preset instantaneous current adjustment coefficient matrix m0 and a preset voltage-sensitive chip impedance matrix Z0;

4. The voltage-sensitive chip and the surge protector comprising the same as claimed in claim 3, wherein the central control module further comprises a preset instantaneous current adjustment coefficient correction coefficient matrix B0 and a preset voltage surge action time matrix T0;

5. The pressure-sensitive chip and the surge protector comprising the pressure-sensitive chip as claimed in claim 2, wherein the central control module further comprises a preset pressure-sensitive chip maximum current adjustment coefficient matrix n0, and n0(n1, n2, n3, n4) is set, wherein n1 is a first preset pressure-sensitive chip maximum current adjustment coefficient, n2 is a second preset pressure-sensitive chip maximum current adjustment coefficient, n3 is a third preset pressure-sensitive chip maximum current adjustment coefficient, and n4 is a fourth preset pressure-sensitive chip maximum current adjustment coefficient, and the preset pressure-sensitive chip maximum current adjustment coefficients are gradually increased in sequence;

6. The pressure-sensitive chip and the surge protector comprising the same as claimed in claim 2, wherein the central control module further comprises a preset pressure-sensitive chip size matrix D0 and a preset pressure-sensitive chip and mounting case pressure matrix F0;

7. The pressure-sensitive chip and the surge protector comprising the same as claimed in claim 6, wherein the central control module further comprises a preset pressure-sensitive chip and mounting case pressure regulation coefficient matrix C0 and a preset spring number matrix G0;

when G is not more than G1, the central control module selects C1 to adjust Fi;

8. The varistor as claimed in claim 7, wherein the central control module further comprises a preset spring number correction coefficient matrix L0 and a preset spring size matrix Q0;

9. The pressure-sensitive chip and the surge protector comprising the same as claimed in claim 2, wherein the central control module further comprises a preset surge protector body standard current matrix Im0 and a preset surge protector body resistance value matrix R0;

10. The varistor chip and the surge protector comprising the varistor chip as claimed in claim 9, wherein the central control module further comprises a preset surge protector body size matrix H0 and a surge protector body standard current adjustment coefficient matrix E0;