TW494421B - Circuit breaker - Google Patents

Abstract

The present invention relates to a type of circuit breaker aiming to, by way of motion transmission, maintain the base (1B) of a loose contact device (4) to have a cross bar (7) being supported by way of motion transmission and secularly reduce the minimization of over travel. Under constant temperature and humidity, the bending elasticity rates, Eb and Ec, of the base (1B) and the cross bar (7), respectively, satisfy the following relations: Eb+Ec ≥ 17000 MPa ... (1), 8000 MPa ≤ Eb ... (2), 9000 MPa ≤ Ec ... (3).

Description

1 494421 A7 B7 V. Description of the invention (1 [Technical Field] The present invention relates to a circuit breaker, which is provided with: a base constituting a molded case for protecting a wiring circuit, and the base The branch can maintain the crossbar of the movable contact, especially with: Regardless of the operating speed of the handle switch, the accumulated force of the toggle link mechanism can be used to allow the crossbar transmission to speed up or slow down the movable contact device. Function 'and circuit breakers that have the advantage of preventing contact melting at the time of opening or closing or simultaneous input of all poles, such as the circuit breaker specified in 60947 · 2 [Background Technology] Traditional circuit breakers, such as this patent The circuit breaker shown in Japanese Unexamined Patent Publication No. Hei. 161641 includes a molded case composed of a base and a cover, and a movable contact point device installed in the molded case, and a circuit breaker. The fixed contact of the fixed contact separated from this movable contact, and the movable contact is pressed against the fixed contact in the closed state of the circuit breaker. The crimp spring of the contact. In actual use, it is repeated When opening or closing operation Opening and closing arcs, causing electrical or mechanical characteristics or two factors to cause the contact to wear or wear. In order to maintain the stability of the contact under the condition of wear or wear, a certain overtravel must be provided. Therefore, the so-called “over travel” refers to the meaning of moving the moving contact before and after the fixed contact installation and fixed contact in the closed circuit state of the circuit breaker, that is, the The amount of contact margin, the amount of movement is usually about 1 to 2 times the thickness of the contact. Broken ^^ Mainly constitutes the crossbar and base of the part, which must have mechanical strength. This paper is suitable for 7 long dimensions. 312408

^ Order ------- 1 on the line ---- (Please read the precautions on the back before filling out this page) 494421 2 A7 V. Description of the invention (2) Degrees, heat resistance, insulation and other characteristics The main constituent materials are mostly thermosetting resins. For example, for a 30 amp circuit breaker, the crossbar is made of 52% by weight of phenol, 15% by weight of glass fiber, 15% by weight of inorganic filler, 15% by weight of wood flour, 8% by weight of pigment, and other materials. The base is formed by 50% by weight of phenol, 30% by weight of wood flour, 15% by weight of inorganic filler, 5% by weight of pigment, and other materials. Traditional circuit breakers, due to the base that occupies most of the volume of plastic parts, are mostly thermosetting resins such as resins or unsaturated polyacetal resins, which is not conducive to thinning, miniaturizing and lightening parts. In particular, because articles made of thermosetting resin have limitations in forming, each part constituting the interior of the base must have a certain wall thickness regardless of the size of the base. Difficult to make the base smaller. For example, for small circuit breakers below 225 amps, the distance between the poles is below 35mm, the contact pressure between the crimp spring contacts is below 20N, and ribs with a height of 2mm or more must have a wall thickness of 2mm due to restrictions on their forming. Therefore, the parts constituting the interior of the base will exceed a certain wall thickness. Therefore, the wall thickness of the 2mm rib referred to here is a value with adjustment space reserved for determination in accordance with the minimum wall thickness standard of a thermosetting resin which is generally known ^ 3 to 3mm. The base of the conventional circuit breaker is mostly thermosetting resin, so it deforms during molding, and it must be burned or buried when it is ejected when the nozzle or flow channel is generated during molding. In addition, 'requiring extremely high precision for detailed molding, we need to re-examine the molded products containing thermoplastic resins as the main component, especially the molding standards of the base, and the appropriate financial standards [21Q x 297 public [] 312408 (Please (Please read the notes on the back before filling in this page) Decoration nnn -1 ° J · n I n ϋ n ϋ. 494421 Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs and the Twilight Temple of the Opening and Closing Agency Department printed by the agency The standard is applicable to the Chinese National Standard (CNS) A4 specification (21 × 297 mm) 3 A7 B7 V. Description of the invention (3) The thermoplastic resin cannot meet the characteristics required by the base. For example, in JP 08-171847 The molded product containing a thermoplastic resin and an inorganic compound and a reinforcing material that undergo a dehydration reaction at a temperature of 200 ° C or more is shown to be very suitable for circuit breakers because it has good flame resistance and good insulation after the electrodes are opened and closed. Compared with lids, handles, etc., it is a base that is used under high temperature and high pressure, especially when it is more than 100% when it is energized and subjected to strong stress by the crossbar. The over-reduction of creep, deformation, caused by various conditions between the base and the crossbar is greatly reduced, resulting in insufficient phenomena. The inventor, after repeated trial and error, found that a countermeasure can reduce the In order to solve the above-mentioned problem, the purpose of the present invention is to reduce the reduction of the over-travel and reduce the thickness of the base. It is wall-mounted and provides a circuit breaker that is harmless to the environment. [Disclosure of the invention] The present invention relates to a circuit breaker, which is provided with a fixed contact device having a fixed contact, and a sliding contact separated from the fixed contact. The sliding contact device, and the crimp spring that imparts the crimping force between the two contacts when the two contacts are in contact with each other, and an insulating resin as the main material are integrated into $, while maintaining the transmission of the "movable contact device" , The link part connected to the toggle link mechanism is driven by the crossbar around the shaft with the transmission of the toggle link mechanism, and the lever spring is used to take the spring of the toggle link mechanism At the same time, the opening and closing mechanism of the movable contact device is accelerated or decelerated at the same time by the spring, and the fixed support n cover + the cover is formed 312408 ------------- installation -------- order --------- Line (Please read the precautions on the back before filling out this page) 494421 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (4) Break of the shell phantom In the device, the above-mentioned base whose main component is a thermoplastic resin is a molded product of the bending elastic modulus Eb under constant temperature and humidity. The base conforms to the following formula, so it not only contributes to the reduction of overtravel, but the base is thin. Wall and weight reduction will not cause pollution to the environment. In addition, the thinning of the base can increase the surface insulation distance. Eb + Ec ^ 17000Mpa… ⑴ 8000MPa ^ Eb… (2) 9000MPa ^ Ec… (3) Since the bending elastic modulus Eb and Ec satisfy the relationship of the following formula, it contributes to the reduction of overtravel. Eb + Ec ^ 20500Mpa ... (4) 9000MPa ^ Eb… (5) 9000MPa ^ Ec… (6) The bending elastic modulus Eb and Ec satisfy the relationship of the following formula, which helps to reduce the overtravel and has good forming Productivity and appearance.

Eb + Ec ^ 25000Mpa… (7) 9000MPa ^ Eb ^ 22000MPa ... (8) 9000MPa ^ Ec ^ 17000MPa… (9) The thermoplastic resin is polybutylene terephthalate, polyterephthalic acid Glycol ester, polyamine, aliphatic polyketone, polyphenylene sulfide, and at least one of these mixed (fusion) materials, so it not only has good chemical resistance and environmental resistance, it can also achieve Regeneration of resources. Polyamide is at least one of nylon 66, nylon MXD6, nylon 46, and nylon 6T, so it not only has good impact resistance, but also corrects (please read the precautions on the back before filling this page)-丨 tr -------— This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 4 312408 494421

V. Description of the invention (5) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs The heat generated during permanent opening and closing also has good stability. The thermoplastic resin is at least one of polybutylene terephthalate, polydiphenylsulfite, and a mixture of these materials. Therefore, the dimensional change during moisture absorption is small, and for long-term opening and closing The stability of the generated heat energy is also high. The base contains 55 to 70% by weight of polybutylene terephthalate to which a flame retardant is added and 30 to 45% by weight of a reinforcing material, so that cracks are unlikely to occur when the terminals are tightly tightened. The base contains 40 to 70% by weight of a polyethylene terephthalate to which a flame retardant is added and 30 to 60% by weight of a reinforcing material, and therefore has excellent heat resistance and creep resistance. The base contains 56 to 60% by weight of polyamide containing flame retardant and elastomer, and 40 to 44% by weight of a reinforcing material, so it has good impact resistance and insulation performance after a disconnection.丨 The main component of pine cup is benzene resin, so it not only has good flame resistance but also helps to improve overtravel characteristics. The circuit breaker is multi-pole and has a slit 'on the wall edge orthogonal to the bottom wall of the base, so it can reduce the dimensional change after forming and help reduce the overtravel. The slits divide the orthogonal wall surfaces evenly with an equal thickness, so it can predict the dimensional change after forming and help reduce the overtravel ^ The slits are installed in an intersecting manner from the inside and outside of the base, so it can reduce Dimensional deformation after forming and help reduce overtravel. Since the orthogonal wall surface is a partition wall surface, it contributes to the reduction of overtravel. Because the wall thickness of the base between the slits is the same as the wall thickness of the bottom wall of the base, it is more -------- ^ ------- II (Please read the precautions on the back before filling this page ) This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 5 312408 494421 A7 -------- B7 V. Invention t㈣ (6) " '" Changes and help reduce overtravel. Because the wall surface is orthogonal, the contact storage section with the storage movable contact and the fixed contact is the wall surface between the opening and closing mechanism storage section of the opening and closing mechanism section, so the thermal conductivity from the contact side to the switch mechanism side can be reduced. The time delay delays the deterioration of the bone moisturizing agent used in the opening and closing mechanism section and the like because the slits are formed in a cracking manner on the inside and outside of the base, so it can efficiently release heat. Compared with the thickness of the bottom wall of the base, the thickness of the wall surface between the slit and the inside of the base is reduced, which helps to transfer heat energy from the inside of the base to the slit. … The base contains 56 to 60% by weight of polyamines with flame retardants and elastomers and 40 to 44% by weight of reinforcing materials, so it helps to reduce overtravel and achieve thinner and lighter bases Quantification can avoid pollution to the environment. In addition, the thickness of the pedestal can be increased to increase the surface insulation distance. The base also has good impact resistance and good insulation performance after disconnection. The cross bar contains 28 to 32% by weight of a benzene-based resin, 43 to 47% by weight of a reinforcing material, and 23 to 27% by weight of an inorganic filler, thereby helping to reduce overtravel. The content of flame retardant and elastomer is corresponding to polyamine 100, and it contains halogen compounds 50 to 70 and elastomers 20 to 30 in proportion, so it contributes to the reduction of overtravel and has good flame resistance and resistance. Impact. The base contains 45 to 60% by weight of polyethylene terephthalate with a flame retardant and 40 to 55% by weight of the reinforcing material, so it helps to reduce the overtravel and reduce the thickness of the base. • Lightweight while avoiding the environment (please read the precautions on the back before filling out this page) 丨 Install nnnnnnn ϋ · ϋ I n I »Printed on paper standards of the Ministry of Economic Affairs, Intellectual Property Bureau, Employee Consumption Cooperatives, Chinese paper standards (CNS) ) A4 specification (210 X 297 mm) 6 312408 Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives Printed Clothes 494421 A7 —_____ Β7 ______ 5. Description of the invention (7) Pollution. In addition, the thickness of the pedestal can be increased to increase the surface insulation distance. And has good impact resistance and insulation performance after disconnection. Because the cross bar contains 55 to 65% by weight of phenol resin, 10 to 25% by weight of reinforcing material and 10 to 25% by weight of inorganic filler, it is very easy to form, and it also has good hopper dropping performance during continuous forming. The cross bar contains 25 to 35% by weight of a phenol resin, 40 to 50% by weight of a reinforcing material, and 20 to 30% by weight of an inorganic filler, which contributes to reduction of overtravel. Since the content of the flame retardant is corresponding to polyethylene terephthalate 1 and contains a halogen-based compound in a weight ratio of 25 to 40, it contributes to the reduction of overtravel, and has good flame resistance and impact resistance. Sex. Because the base contains 40 to 70% by weight of flame retardant polyethylene terephthalate and 30 to 60% by weight of the reinforcing material, because the crossbar contains 25 to 35% by weight of phenol resin and 40 to 50% by weight of the reinforcing material and 20 • to 30% by weight of the inorganic filler, which contributes to the reduction of overtravel, and reduces the thickness and weight of the base while avoiding pollution to the environment. In addition, the thinning of the base can increase the distance of the surface insulation. And has good heat resistance ^ Because the base contains 40 to 70% by weight of polyethylene terephthalate with flame retardant and 30 to 60% by weight of the reinforcing material, the crossbar contains 55 to 65% by weight Benzene resin and 10 to 25% by weight of the reinforcing material and 10 to 25% by weight of the inorganic filler, therefore contribute to the reduction of overtravel, and C has good moldability. Because the base contains 55 to 70% by weight of polyparaphenylene with flame retardant. ---------- ^ --------- (Please read the precautions on the back before filling this page} This paper Standards apply to China National Standard (CNS) A4 specifications (210 X 297 mm) 7 312408 494421 A7 B7 V. Description of the invention (8) Ethylene glycol diformate and 30 to 45% by weight of reinforcing material, so it helps The reduction of the process reduces the thickness and weight of the base while avoiding pollution to the environment. In addition, the thinness of the base can increase the distance of the surface insulation. At the same time, it contributes to the formation of fine parts. It is also not easy to cause cracks when the terminals are connected. Because the cross bar contains 25 to 35% by weight of phenol resin and 40 to 50% by weight of the reinforcing material and inorganic filler 20 to 30% by weight, it contributes to the reduction of overtravel. The cross bar contains 25 to 35% by weight of phenol resin, 40 to 50% by weight of reinforcing material, and 20 to 30% by weight of inorganic filler, so it is not only easy to form, but also has the characteristics of continuous hopper formation and good hopper dropability. The content of flame retardant is corresponding to polyethylene terephthalate 100 Contains 25 to 40 weight ratio of i-based compounds, so it helps to reduce overtravel, and has good flame resistance and impact resistance. Because the main component of the base is a thermoplastic resin, and it is on the bottom of the base The wall edge of the orthogonal wall has slits, so it can avoid the size change after forming and contribute to the reduction of overtravel. Since the slitting divides the orthogonal wall surface with equal thickness, it can predict the size change after forming and have It helps to reduce the overtravel. Since the slits are installed on the inside and outside of the base in a cross way, it can reduce the dimensional change after forming and contribute to the reduction of overtravel. Since the orthogonal wall surface is a partition wall surface, there are It helps to reduce the overtravel. Since the wall thickness of the base between the slits is the same as the wall thickness of the bottom wall of the base, it is more than (please read the precautions on the back before filling this page). Installation: 1 ---- Order- ------ I. The printed paper size of the employees 'cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs applies the Chinese National Standard (CNS) A4 (210 X 297 public love) 8 312408 A7 A7 Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Printing V. Invention Description (9) Easy to predict The change in the size after the shape has I Weibai to help reduce the overtravel. ~ Because of the wall of the straight wall 'and the contact of the storage activity contact and the solid contact, the first one is the storage of the opening and closing mechanism of the opening and closing mechanism section. The wall surface between the parts can reduce the thermal conductivity from the contact side to the switch mechanism part side, and at the same time delay the deterioration of the lubricant used in the opening and closing mechanism part. It is formed because the slit is opened on the outside of the base. Therefore, the heat can be efficiently dissipated. Compared with the thickness of the bottom wall of the base, the thickness of the wall surface between the slit and the inside of the base is reduced, which is beneficial to the heat transfer from the inside of the base to the slit. [Brief Description of the Drawings] FIG. 1 shows a perspective view of a circuit breaker in an embodiment related to the present invention. Fig. 2 is an explanatory diagram of a circuit breaker in a related embodiment of the present invention in a closed circuit state. Fig. 3 is a perspective view showing a crossbar of a circuit breaker in a related embodiment of the present invention. Fig. 4 is an explanatory diagram of a circuit breaker contact portion enlarged in the embodiment of the present invention. Fig. 5 is an explanatory diagram showing a connection state between a base of a circuit breaker and an opening / closing mechanism in an embodiment of the present invention. Fig. 6 is a cross-sectional view of a cross bar and a contact portion seen from the contact side in the embodiment of the present invention. Fig. 7 is a front view of a base of a circuit breaker divided according to an embodiment of the present invention. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 9 312408 ---- ^ ---------------— ^ (Please read the note on the back first Matters need to be filled out on this page) 71 Xi 厶 丄 A7

V. Description of the invention (10) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs < Figure 8 is the inside view of the base of the circuit breaker in the embodiment of the present invention. Figure 9 is the ιχ_ιχ section of Figure 7 Fig. 0 is a cross-sectional view taken along the line χ-χ in Fig. 7. Fig. 11 is a cross-sectional view taken along the line χ-χ in Fig. 7. Fig. 12 shows a 1,100 amp system according to Embodiment 1 of the present invention. Figure of the mold for forming the cross bar. I ^ i ϋ · ϋ In nii ^ i I n I · n ϋ nn · ϋ n in 01 I in I n ϋ-Ba ^ i I (Please read the precautions on the back first (Fill in this page again.) Figure 13 shows a mold for forming a crossbar of a 100 amp system according to Example 1 of the present invention. [Description of component symbols] 1A cover la 2a 2 support IB, 32h, 42h base 2 fixed Contact device 3 Fixed contact 4 Movable contact device 5 Movable contact 6 Pivot 7 Cross bar 7a Tie-down portion 7a and 7a2 Rotary shaft 7b Holding portion 7c Pin hole 8 Crimp spring 9 Opening and closing mechanism portion 10 Pin 11 Lower connection Rods 12 and 15a Link pin 13 Upper link 14 Rod pin 15 Control rod 16 Main spring 17 Structure 18 '23a Spring 1 9 Handle 20 Movable conductor 21 Current detection unit 22 Conductor This paper size applies to Chinese National Standard (CNS) A4 (210 X 297 mm) 10 312408 494421 A7 B7 Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs (U) 23 Terminal board 24 Contact point 25 Wire and cable 26 Cross bar section 28 Unlocking section 30 Outer side wall 32 Insertion hole 32A Supporting protrusions 33a, '36a, 36d, 42b' 42d, 42f '42b 42m' 42x , 44a 44b, 44d, 49A, 49B, 49C Slit i 33 End 34 Mounting part 36 Unlocking part wall side 36A, 36B Wall part 36h Surface side wall 36i Back side wall 36g, 36j > 42g ^ 44g-44h, 44i , 44j, 44k Wall 40 Contact side wall 41 Phase wall 42 > 44 Partition wall portion 42a Phase 1 side wall 42c Phase 2 side wall 42e Fixing screw insertion hole 42g Slit wall 42i, 42j, 421 Reduced openings ^ 42il, 42i2 , 42i3, 42jl, 42j2, 42j3 Reinforcement ribs 42p Base bottom wall 44dl > 44d2 ^ 44d3 Space 44x, .44y ^ 44z Convex 80-90 mold 80A upper mold -80B lower mold 81 > 91 injection inlet 90A fixed mold 90B movable Mold [Best Mode for Carrying Out the Invention] Hereinafter, an embodiment of the present invention will be described. Figure 1 shows the oblique test of the circuit breaker according to the embodiment of the present invention -------- ^ --------- (Please read the precautions on the back before filling this page) This paper size Applicable to China National Standard (CNS) A4 specification (210 X 297 mm) 11 312408 A7 B7 Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (η) Figure 2 shows the open circuit of the embodiment of the present invention The drawing of the device in the closed circuit state, the section where the base and the crossbar are cut by the line of Fig. 1 and clearly indicate the structure of other parts such as the opening and closing components. Fig. 3 is about the embodiment of the present invention The oblique view of the crossbar of the circuit breaker is shown, only the movable joints with different poles are shown. Referring to FIG. 1, 1 is a molded case composed of a cover 1A and a base 15. The base 1B is a molded product made of a thermoplastic resin. Refer to section 2 for the fixed contact device with the fixed contact 3 installed on the base iB. 4 For the active contact with the active contact opposite to the fixed contact. The mobile contact device is automatically rotated. It is supported by a pin 6 and 7 is a cross bar. The cross bar 6 of each pole formed by an insulating object is fixed and the movable contact device 4 of each pole is automatically rotated and held on the holding portion 7b (No. 3), each of the movable contact devices 4 that are driven through the pin hole 10 of the opening-closing mechanism section 9 to be described later is penetrated through the pin hole 7c (FIG. 3), and the movable contact 5 is separated from the fixed contact 3 . In the closed state of the circuit breaker, referring to FIGS. 3 and 6 ′, the rotary shafts 7ai, w of the crossbar 7 are supported by the support portions 1 a 1 and 1 a 2 of the base ib. Returning to FIG. 2 '8 is a crimping spring which is installed between the movable contact device 4 and the cross bar 7 and the movable contact device 4 is installed in the closed circuit state in the closed circuit state of the circuit breaker (in the second Clockwise in the figure), and grant a certain contact pressure between the two contacts 3 and 5. 10 is a connecting pin connecting the lower link 11 and the cross bar 7 of the opening-closing mechanism part 9, and the connecting pin transmits the driving force of the lower link η to the cross bar 7. 18 is a spring. The spring fixes the structure ΐ7 to Base 1B. ^ Zhang scale is applicable to the Chinese National Standard (0NS) A4 specification (210 X 297 body image placement ------------ wt ------ (Please read the precautions on the back before filling in this Page) Order ------- 312 408 Case 421 A7

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the Invention (13) 20 is a movable conductor that connects the movable contact device 4 to the overcurrent detection method. Sucked with current: 5 currents. 22 is a conductor to which the overcurrent detection section 21 poles are connected. The terminal board 23 is tightened on the base 1B == fixed ', and the external electric wire magic 25 is tightened with a spring. In addition, the current-carrying circuit in the circuit breaker is composed of fixed contact device 2 contact 3, movable contact 5, movable contact current detection device 21, and conductor = terminal two movable conductors 2. The path through the terminal board 23 is shown. The opening and closing mechanism portion 9 ′ is composed of a toggle link mechanism composed of a lower link n, a link pin 12, an upper link u lever pin u, a control lever 15, a main spring 16, a structure body 17, a handle 19 and the like. . In addition, by operating the handle, the action line 16 of the main spring surpasses the dead point of the toggle link mechanism, and the operation at 0n = the lower toggle link mechanism is rapidly extended, and the converse link mechanism is operated under the ⑽ operation. The movable contact device 4 can be opened and closed freely regardless of the operating speed of the handle 19 because of rapid reduction. In addition, when the overcurrent is disconnected, the latch is released by the disconnection action from the overcurrent detection unit 21, so that the control cup 15 restricted by the latch is no longer restricted by it, and the link pin i5a exceeds the main spring. The action line of 16 and the elbow link device are sharply bent to make the movable contact 5 jump away. -The circuit breaker of the present invention, such as the circuit breaker specified in IEC60947-2, has the functions of quick-on (qUick_make) and quick-off (qUick-break), and at the same time prevents the contacts from melting or opening at the same time. Advantages (please read the precautions on the back before filling out this page) -install -j ^ T · ·! Line · -I nnn Figure 4 shows the implementation of the present invention, showing the expansion of the circuit breaker connection nnn, this , Zhang's scale and standard (CNS) A4 specification (Gx297 public love) 13 312408 A7 ------ B7___ V. Explanation of the point of the invention (14) The dotted line shows the closed circuit state, and the solid line shows the The state of the fixed contact device in the closed state and the state of removing the fixed contact device. In the figure, the fixed contact device 2 and the fixed contact device 3 and the movable contact device 4 are removed from the closed circuit state not shown by the dotted line. The spring pin 8 is used to rotate the pivot pin 6 as the center of rotation to the cross bar 7 Zhitie 7a. At this time, the amount of movement of the movable contact is called overtravel. Generally, the overtravel is usually about 1 to 2 times the thickness of the fixed contact 3, which is shown in Fig. 4 as τ. In order to ensure the stability of contact < overtravel ', this overtravel uses repeated opening and closing operations or an arc that is accompanied by opening and closing when energized. Contacts 3 and 5 are worn or worn due to electrical or mechanical reasons or due to both reasons. And in order to reduce the contact bases 1B and the cross bar 7 of the contacts 3 and 5 to deform (especially creep deformation) to ensure the stability of their contact. In addition, a circuit breaker using a conventional base whose main component is a thermosetting resin has a relatively small impact on the overtravel because of the deformation of the latter and the wear of the contact of the former, and the deformation of the latter does not have an effect. Fig. 5 is an explanatory diagram showing an embodiment of the present invention, showing the state of connection between the base of the circuit breaker and the opening and closing mechanism. The opening / closing mechanism 9 is fixed to the base 1B by a spring 18 in the... Structure 17. In addition, the upper link 13 is tied to the // shaft 15a integrally formed in the control lever 15 and the control lever 15 is sufficient to set the integrally formed lever pin 14 as the center of rotation in the structure 17 of the opening and closing mechanism portion 9. The upper link 13 and the lower link n are connected by a link pin 12, and the link pin 12 receives the weight of the main spring 16. In the closed circuit state, the contact pressure is applied by the pressure contact spring 8 between the fixed contact 3 and the movable contact 5. Since the fixed contact device with the fixed contact 3 fixed to the base 1B, a reaction force is generated. Through the movable contact device (please read the precautions on the back before filling this page)

Order I Print clothing for the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper standard Guzhongguanjia standard (CNS) A4 specification (21G x 297 public love) 14 312408

V. Description of the Invention (I5) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 and the crimping spring 8 'often exerts a load on the crossbar in the direction of arrow A. In addition, the component force of the load A pushes the elbow link mechanism composed of the upper link 13 and the lower link 11 upward by the connecting rod 10, and as a result, 2 15 and the structural body 17 are pushed upward. Therefore, in the closed circuit state, the load E acts upward on the base 1B with the spring insertion portion as the center. Fig. 6 is an explanatory diagram of a contact between a cross bar and a contact as seen from the contact side in the embodiment of the present invention. In the closed circuit state, the load B1 always acts on the center pole of the cross bar 7 due to the action of the pressure contact spring 8. The left and right poles of the cross bar 7 each have a load 32 acting in the upward direction. In addition, the loads from the lower shafts C (shown in Fig. 5) of the rotary shafts 7al, 7a2 of the cross bar 7 often act as the bases lal, la2. In addition, the fixed contact 2 has a downward load D (shown in FIG. 5), and a load E in the upward direction of the structure 17 and the spring 18 acts on the base 1B. In addition, the larger the ampere frame of the circuit breaker, the load of the main spring 16, the load of the fixed crimping spring 8 in the A direction of the crossbar 7, and the direction above the center in the base 1B where the spring 18 is inserted The load e, the loads Bl, B2 of the cross bar 7, the greater the load in the downward direction C from the rotation axes 7al, 7a2 of the cross bar 7. As described above, the pedestal 1B and the cross bar 7 exert a functional load and moment during closed circuit and opening and closing operations. In addition, the dimensional change is caused by the residual stress according to the use temperature of the pedestal 1B or the cross bar 7, The dimensional change caused by moisture absorption, the creep deformation due to temperature, humidity, time, and various composition conditions, but the creep deformation equipment must be inferred due to the different composition conditions -------- order-- ------- Line (Please read the precautions on the back before filling this page) This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 15 312408 A7 ------- -5. Description of the invention (16) The amount of shape is quite difficult. The creep deformation mainly exerts its effect in the direction of easing stress, that is, in the direction of reducing overtravel. The base 1B with thermoplastic resin as the main component is compared with the base with thermosetting resin as the main component, and a significant reduction in overtravel can be found in the base 1B and the crossbar 7 with the same cultural training range. . For example, Ji Weng Yu, Te Gu Ping No. 08_171847, the reduction of the overtravel of a circuit breaker using a thermoplastic resin as the main component is very significant. When the inventor used a molded product of a base made of a thermoplastic resin, the inventor found that the base 1B and the cross bar 7 having good overtravel characteristics were appropriate and δ. Furthermore, the inventor also found that The relationship between the bending elasticity of 1B and the cross bar 7 under normal temperature and humidity, and the shape of the base 1B are examined. Here, the so-called strange temperature means a temperature between 21 ° C and 25 ° C, and the strange humidity means a humidity between 60% and 70%. The flexural modulus of elasticity under constant temperature and humidity is the measured value (average value) under the environment of humidity between 60% and 70% between 21 ° C and 25 ° C. [Bending elastic modulus of base and cross bar] Base The main component of base 1B is a molded product of the bending elastic modulus of thermoplastic resin under constant temperature and humidity. Examples of the thermoplastic resin include polybutylene terephthalate (PBT), polyethylene terephthalate (pet), polyamide (PA), aliphatic polyketone, and polyphenylene sulfide. Ether (pps) and fusion materials of these. Polyamide, in the chemical structure, has a amine group GCO-NH-), including nylon 6, nylon 66, nylon MXD6, nylon 46, (please read the precautions on the back before filling this page) Binding: Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economics This paper is printed in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) 16 312408 A7 A7 Explanation (Π) Nylon 6T and its alloy materials. In addition, polybutylene terephthalate (ρΒΤ), polyethylene terephthalate (PET), polyamide (PA), aliphatic polyketones, polyphenylene sulfide (pps), and others The blended material is crystalline resin. Compared with non-crystalline resins such as polycarbonate (pc), it has the advantages of good chemical resistance and environmental resistance. Therefore, the circuit breaker can be used for a long time in various environments such as oil mist (smoke) environment, ammonia gas environment, and sulfur gas. Polyamide in thermoplastic resin has good impact resistance, and the insulation of the surface of the material is not easily reduced due to the exposure of the arc when the circuit is broken. In addition, in the continuous opening / closing test of repeated energization and interruption of the current, it is more appropriate to choose nylon 66, nylon MXD6, nylon 46, and nylon 6T in terms of shape retention (heat resistance). Consider the angle at which the bending elasticity is not easy to decrease when moisture is absorbed and the size becomes smaller due to moisture absorption. 1Select polybutylene terephthalate (ρΒΤ), polyethylene terephthalate (PET), fat Group polyketones, polyphenylene sulfide (pps) and fusion materials of these are more suitable. In addition, in the above-mentioned permanent opening and closing test, it is appropriate to select polyethylene terephthalate (PET), polyphenylene sulfide (pps), and fusion materials from the perspective of shape retention. -In addition to thermoplastic resins, reinforced materials such as glass fibers and inorganic fillers can be cited, as well as other additives. Crossbar The crossbar is a molded product with a bending elastic modulus Ec under constant temperature and humidity. The main component of this molded product is an insulating resin. At the same time, the same K paper size as the base 1β is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297). 312408 · I ------ ^ --------- (Please read the notes on the back before filling this page) 494421 A7 V. Description of the invention (is) Substances, such as adding unsaturated polyester, phenol resin, etc. (Please read the notes on the back before filling in this page.) Compared with thermoplastic resin or unsaturated polyester, phenol resin not only has good high-temperature spiral deformation characteristics, but also is suitable for injection molding or compression molding. advantage. In addition, phenol-based phenolic resins or soluble phenol-based phenolic resins can also be used, but powder aldehyde-based phenolic resins for lacquers are preferred from the standpoint of dimensional stability of molded products. In addition, the main knife tree & of the cross bar 7 contains wood powder of an organic filler, pulverized cloth, polyamide, polyester, and polypropylene. That is, in this specification, the filler of the cross bar 7 means an inorganic filler, and the organic filler means a filler containing an insulating resin. Inorganic fillers are mainly used to strengthen the strength of molded products and increase the bending elasticity of finished products. In contrast, compared with organic fillers and inorganic fillers, their role is not to improve the bending elasticity of molded products but to improve the molding of molded products. And impact resistance. Examples of components other than the insulating resin include a reinforcing agent such as glass fiber, an inorganic filler, and other additives. The above-mentioned base 1B, the glass fiber of the cross bar 7, the inorganic filler 'and other additives are the following. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs The so-called glass fiber means glassy fibrous substances, which are not subject to the total content of metal compounds in Group 1A of the Periodic Table. Examples of the glass material include E glass, S glass, D glass, T glass, and quartz glass. It is generally known that the diameter of the glass fiber is 6 to 13 / xm, and it is preferable to consider the aspect ratio of 10 or more from the viewpoint of improving the impact strength. Inorganic filling materials can include, for example, alumina, calcium carbonate, mica, and the paper size applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) 18 312408 494421 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 5. Description of the invention (19) Clay, talc, baby limestone, etc. Other additives, such as an internal release agent of calcium tristearate, or the black carbon of the pigment used in the base 1B. Flexural modulus of elasticity The flexural modulus of elasticity Eb of the above-mentioned base and 1B under constant temperature and humidity and the flexural modulus of elasticity Ec of the crossbar 7 under constant temperature and humidity meet the following relationship. In addition, the flexural modulus of elasticity generally decreases as the temperature and humidity increase.

Eb + Ec ^ 17000Mpa… ⑴ 8000MPa ^ Eb… (2) 9000MPa ^ Ec… (3) Using the above combination, it is regarded as the main cause of the creep resistance of the base 1B and the cross bar 7. The good overtravel characteristics can be obtained from experiments. Learned. At this time, if at least one of Eb < 8000 MPa and Ec < 9000 Mpa can be met, the overtravel characteristics will decrease. In addition, in order to improve the overtravel characteristics, the flexural elasticity Eb of the base 1B under constant temperature and humidity and the flexural elasticity Ec of the cross bar 7 under constant temperature and humidity are expected to meet the following relationship.

Eb + Ec ^ 20500Mpa… (4) 9000MPa ^ Eb… (5) 9000MPa ^ Ec… (6) At this time, if at least one of Eb + Ec < 20500MPa, Eb < 9000MPa, and Ec < 9000Mpa can be met, the super The characteristics of the process will decrease.

Furthermore, the long-term reduction of overtravel is reduced, and the reliability is improved. The base 1B ------------- installation -------- order ------- 丨 1 line (Please read the precautions on the back before filling out this page) This paper size applies to Chinese National Standard (CNS) A4 (210 X 297 mm) 19 312408 494421 A7 B7

V. Description of the invention (20) = flexural modulus of elasticity under constant temperature and humidity and the strange flexural modulus of elasticity Ec of the cross bar 7 are expected to meet the following relationship. ‘,,, next

Eb + Ec ^ 25000Mpa "· ⑺ 9000MPa ^ Eb ^ 22000MPa… ⑻ 9000MPa ^ Ec ^ 17000MPa ··· (9) At this time, if Eb exceeds 22000Mpa, the proportion of glass fiber or inorganic colony filling material will increase 'Forming on base 1B In some cases, poor material fluidity occurs or the filling material floats out of the surface of the molded product, which affects the appearance of the molding opening and the handling opening.

Eb $ 22000Mpa is more ideal. In addition, the cross bar 7 'can be supplied by injection molding or compression molding, but from the viewpoint of high productivity, injection molding is a more ideal choice. When the cross bar 7 is injection-molded, if the bending elasticity 豇 exceeds 17000Mpa, there will be less breakage of the glass fiber in the material mixing process. The length of the particles of the material is too long, and the particles of the material are not easy to fall from the hopper and enter the cylinder. As a result, the material quality of the injection tube is not good, so 17000Mpa is more ideal. As described above, since the main component of the base 1B is a thermoplastic resin, compared with a thermosetting resin, it is less likely to change during molding, and it is also less likely to cause incineration or landfilling such as nozzles or runners during injection molding. Problems such as industrial waste do not cause pollution to the environment. Since the main component of the base 1B is a thermoplastic resin, it is advantageous for resource recovery. In addition, because the main component of the base 1B is a thermoplastic resin, compared with the main component of the base 1B, this resin has good resistance to leakage traces and shortens the insulation distance. No secondary installation — (Please read the precautions on the back before filling out this page) 2 ^ 1 · Printed on the paper by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the paper size is applicable to China National Standard (CNS) A4 (210 X 297 public) Love) 20 312408 494421 A7 B7 printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (21) Generate ammonia. In addition, as compared with the base 1B whose unsaturated polyester resin is the main component, the problem of unreacted styrene during use does not occur. Since the main component of the base 1B is a thermoplastic resin, for example, a thin wall design with a wall thickness of 2 mm or less can be formed even with ribs having a height of 2 mm or more. If the thickness can be reduced, the number of ribs or grooves in the same space can be increased, and the insulation distance of the path on the surface of the insulator can be increased. Moreover, the same insulation distance can be ensured in a smaller space, and at the same time, Miniaturization of the product becomes possible. The base 1B whose main component is a thermosetting resin, due to the molding conditions or the physical properties of the material, the insufficient strength of the thin-walled tip due to insufficient filling of the material or insufficient filling of the reinforcing agent such as glass fiber, etc. Because the main component of the base 1B is a thermoplastic resin, the thin-walled tip of the molded product can be solved by filling the material. In addition, since the base 1B is made of a thermoplastic resin as its main component, the weight of the circuit breaker can be reduced. > (Shape of the base) FIG. 7 is a partial cut-away front view of the base of the circuit breaker according to an embodiment of the present invention, FIG. 8 is a rear view, and FIGS. 9 to 11 are The figure is a sectional view taken along the line IX-IX, χ-χ, and χΐ-χι. In the figure, the pedestal 1B and the bottom of the pedestal are orthogonal and extended, and are separated from each other by the outer walls 30, 30 and the interphase walls 41, 41 arranged in parallel. Each phase consists of a contact portion 24 arranged at the two contacts 3, 5 and a cross bar portion 26 (opening and closing mechanism storage portion) arranged at the cross bar 7 or the opening and closing mechanism portion 9, and in a closed circuit state, In order to check the overcurrent of the circuit and make the contacts open circuit, it is configured to be able to supply the starting action to -------- I --------- I -------- ---- (Please read the notes on the back before filling in this page} This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 21 312408 A7 V. Description of the invention (22: 的. 机构 # The over-current detection device 21 of 9 is formed by a tripping portion 32 of the over-current detection device. 32 is an insertion hole for a fixing screw used when installing a circuit breaker, (not numbered in the figures 1 to 6). The main surface of the base comes from a support protrusion provided in a C-shaped protruding manner. When the circuit device is installed on the switchboard, this support protrusion 32a will become a space = (sPace0 makes the main surface on the back of the base 1B detach Switchboard. As long as the dog is supported, the P 32A has the function of separating the main surface on the back of the base 1B from the switchboard. As for its shape and placement, it does not matter. ^ What limit partition 33 relative side end portion of the trip unit 41 is provided for inserting

The slit 333 for the reinforcing rib of the cover 1A is 36 on the side of the trip portion provided between the terminal installation portion "and the trip portion 28, and is formed by the wall portion 36A provided on the terminal installation portion 34 and The wall portion 36B provided on the unfastening portion 28 is formed. Especially in FIG. 9, the royal portion 3! ^ Is formed with Jiyou seam 36a and the seam on the base 1B side and the back side. Therefore, The size of the base 1B after forming is relatively stable, which helps to reduce overtravel. In addition, due to the thickness t0i of the wall 36g between the slits 36a and 36d, and the thickness t of the surface side wall 36h of the slit 36d. 2. The thickness t03 of the back side wall 361 of the slit 36a, and the thickness t04 of the wall 36j (refer to FIG. 7) between the slit 36a and the unfastening portion 28 are equal thicknesses, so more It helps to reduce overtravel. In FIG. 7, 40 is a contact side wall provided between the terminal mounting portion 38 and the contact portion 24. Outside the terminal mounting portion 38 and the vicinity of the contact side wall 4 () The surface of the wall 30 and the back side are set interactively in the interphase direction ----------- face-mounted (please read the precautions on the back side before filling out this page) II: tr ---- ---! · Classics; 5 Printed on the paper of the Intellectual Property Bureau's Consumer Cooperatives. The paper size applies to the Chinese National Standard (CNS) A4 (210 X 297 mm) 22 312408 494421 Printed by the Intellectual Property Bureau's Consumer Cooperatives of the Ministry of Economic Affairs A7 B7. Each slit 30a, 30d is provided. The slits 30a, 30d divide the outer side wall 30 equally in the thickness direction. The partition wall 41 is formed by the partition wall portion 42 on the contact side, the support portion ial, and the release device side. The partition wall portion 44 and the like are formed. The partition wall portion '42 is equally divided into a first-phase side wall 42a and a second-phase side wall 42c by a slit-present 2b. In addition, the back side of the base ιB is formed by a slit 42d. It is equally divided into the first phase side wall 42a and the second phase side wall 42c. The slit 42b and the slit 42d are separated by a wall 42g (FIG. 丨) with a thickness of t05. 42e is used to fix the lid ia The fixing screw insertion hole in the base iB. On the sides of the support portions 1 a 1 and 1 a 2 of the spacer portion 4, there are provided narrowing portions 42i, 42j, and 42i wider than the movable contact 4. 42x is a frame 18 One slit for inserting one end. The narrowing portion 42i is extended from the side wall 30 to the partition wall 42 side. The reinforcing rib 42il (Fig. 10) is formed by the reinforcing rib 42i3 extending from the partition wall 41 to the side 30, and a slit is provided in the extending direction of the reinforcing rib 42il, 42i2, 42i3. 421 (fig. 7), the creeping distance becomes longer. The base 42h between the reinforcing rib 42i3 and the partition wall 41 is provided with a slit 42f (figs. 8 and 10). The reduced mouth portion 42j is formed by the reinforcing ribs 42j 1 extending on the partition walls 41 of each other, and the reinforcing ribs 42j2 and the like extending from the base bottom wall 42 to the cover 1A side, and the reinforcing ribs 42jl, 42j2 , 42jl is provided with an opening of 42m in the extension direction, and its creeping distance will become longer. The narrowed mouths 42i, 42j, 421 and the base 42h are used to distinguish ^ -------- ^ --------- ^ (Please read the precautions on the back before filling this page) Paper size applies to the National Standard (CNS) A4 specification (210 X 297 mm) 23 312408 Printed by the Consumers' Association of the Intellectual Property Bureau of the Ministry of Economic Affairs 24 494421 A7 -_5. Description of the invention (24) Contacts 3, 5 and The wall of the opening and closing mechanism section 9 can prevent the gas from flowing into the opening and closing mechanism section 9 side due to the increase in pressure when the contacts 3 and 5 are disconnected and the fox is turned off. In addition, an opening 42f is provided in the base portion 32h serving as a wall for separating the contacts 3, 5 and the opening and closing mechanism portion 9, because the thermal conductivity of the space (ie, the air layer) of this opening 42f is higher than that of the base portion 42. When it is filled with resin, it is even lower. Therefore, the thermal conductivity of the base 18 from the contacts 3 and 5 to the opening and closing mechanism 9 is relatively low. Therefore, the heat generated at the contacts 3 and 5 is difficult to be transmitted to the opening and closing mechanism portion 9 when the power is turned on, and the deterioration of the lubricant such as oil or butter used in the opening and closing mechanism portion 9 can be delayed. In addition, since the main surface of the back of the base 1B is away from the installation surface of the switchboard by the support protrusion 32, and a slit is installed on the back of the base i B, the heat radiation area becomes larger than when filled with resin. As a result, the heat is more easily dissipated to the outside of the base 1B, so that the deterioration of the lubricating material can be delayed more. In addition, the thickness tO 7 of the wall between the slit 42f and the inside of the base 1B (for example, the slit wall 42 g) is thinner than the thickness t〇6 of the bottom wall 4 2p of the base. Effectively dissipates heat. The partition wall portion 44 is equally divided into the first phase side (the central phase in FIG. 7) and the first phase side (the central phase in FIG. 7) by slits 44a, 44d (especially 44d2) and 44b provided in the extending direction of the partition wall 4i alternately. Phase 2 side (right phase in Figure 7). The slit 44d is composed of spaces 44dl, 44d2, 44d3, and the like. The thickness t10 of the wall 44g between the slit 44d and the space on the side of the trip side 33, and the thicknesses tll, t12, t13 of the walls 44h, 44i, 44j, 44k between the slit 44d and the slits 44a, 44b And t14 are about the same as the thickness t01; the paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 public love) 312408 Ⅲ IIIIII «— III — — — · 11111111 (Please read the precautions on the back before filling (This page) ^ 4421 A7 " ----- ~ __ 5. The thickness of the description of the invention (25). 44x and 44y are convex portions for determining the position, and 44z are convex portions of the spot cover 1A that cooperate with each other. Due to the slits 4 乜 and 44d (especially 44d2), the 44b father is placed on the surface and the back of the base 1B each other. This can make the size of the base 1B more stable after molding, and reduce overtravel. In addition, the thicknesses of the walls 44g, 44h, 44i, 44j, and 44k, t10, tii, t12, t13, and t14, are generally equal, making the dimensions more stable and helping to reduce overtravel. 49A is a slit provided on the surface side of the base 1B and the side wall 30, and 49B and 49C are slits provided on the surface side of the base 1B and the side wall. As described above, the walls 30a, 30d, 36a, 36d, 42b, 42d, 44a, 44b, 44d, 49A, 49B, and 49C are equally divided into predetermined ones by the slits 30a, 30d, 36a, 36d, 49A, 49B, and 49C. Thickness, so that the main component of the thermoplastic resin base β can reduce the number of Zhao Qu or shrinkage depression after molding, and further improve the accuracy of the southern dimension, which helps reduce the number of bases and crossbars 7 and so on. Overtravel caused by warping. Particularly, when a slit is provided in the partition wall 41, the overtravel can be significantly reduced. In addition, the slits on the surface and back of the base 1B in an interactive manner also have a significant effect on reducing the problem of overtravel. In addition, because the walls 36g, 36h, 36i, 36j, 42p, 42q, 44g, 44h, 44i, 44j, etc. forming the slits are generally of uniform thickness, they can be sunken due to warping or shrinkage after forming. It is easier to predict the size change caused by Example 1. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 312408 ^ — (Please read the note on the back? Matters before filling out this page) Order: Printed by the Consumers ’Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 25 Printed by the Consumers’ Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 4421 V. Description of the invention (%% or less) The embodiments of the present invention are specifically described, but the present invention is not limited It is limited to this embodiment. In the embodiment! The description is about a circuit breaker for a range of 100 amps. The specific structure of this circuit breaker is exactly as described in the shape of the above implementation, and the pitch between the poles is 30 mm In the case of a three-pole product, the horizontal dimension of the base is 90 mm, and the contact pressure between the contact points of the compression spring is less than 2 ON. (Example (11) to (41) Forming of the cross bar) FIG. 12 is about the present invention Example 1 A mold display for forming a crossbar in the range of ampere. In the figure, 80 is composed of an upper mold 80A and a lower mold 80B, and the inside is a mold formed along the shape of the crossbar 7. 81 疋 上The mixed material injection port formed by the mold 80A and the lower mold 80B. The mixed material is injected from the injection port 81 of the mold 80 at an edge position in the direction of flow in a molding machine at 75000 kg (75 tons), and the mold temperature is 174 to 176 degrees. (Cylinder) The temperature of the front part is 80 to 85 degrees, the temperature of the rear part of the injection cylinder is 60 to 70 degrees, and the injection time is 9 to u seconds. The formed cross bar 7 is heat treated under the conditions shown in Tables 1 to 4. In this way, the cross bars of the examples (u) to (41) shown in Tables 1 to 4 can be served ^ The cross bars of the sample examples (u) to (41) are made of phenol resin and glass fiber (GF) and filling materials The composition is changed according to various ratios or heat treatment conditions. Glass fiber is a fibrous material formed of glass, and is not particularly limited as long as it satisfies the total content of metal compounds in Group 1A of the periodic table. Examples of glass materials are listed. E glass, S glass, D glass , Τ glass, or quartz glass, etc. It is generally known that the diameter of the glass fiber is 6 to 13 # m, and the aspect ratio is above 10, which has strong impact resistance. 丨 丨 — — — — — — — —Preparation · 丨 丨 丨 (Please read the notes on the back before filling out this page) — Order --------: K paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 26 312408 494421 27 A7 V. Description of invention (27) It is better from the viewpoint of degree improvement. Filling material 'Inorganic filling materials include alumina, carbonic acid, emerald: pumice stone, Shangling clay, etc., and organic filling materials include polyamic acid, polyvinegar, polypropylene, and the like. As mentioned above, its characteristics are derived from the proportion of organic fillers contained in stupid resins. (Sample examples (11) to (4 丨) Forming of base) Fig. 13 is a diagram showing a mold for forming a pedestal for a ampere system of Example i of the present invention. In the figure, 90 is composed of a fixed mold 90A and a movable mold 90B, and the inside is a mold formed along the shape of the base 1β. Numeral 91 is a mouth of a mixed material formed by a stationary mold 90A. The mixed material is injected from the injection port 9b of the center position of the fixed mold 90A into the molding machine at 160,000 kg (i60 mock). The temperature of the movable mold is set to 120 degrees, the fixed mold temperature is 120 to 40 degrees, and the injection cylinder temperature. Under the conditions of 25 ° to ⑽, holding pressure time and injection time for 4 to 6 seconds, the pedestal 第 shown in Fig. 2 and Fig. 4 to π is formed into Fig. 1 and then connected to the test. The method, judgment method and results will be explained. (Measurement of Crossbow Elasticity) The bases ib shown in the sample examples (11) to (41) of the crossbar are measured in an environment where Γ is 1 ° to 25 ° C and humidity is 60% to 70%. Value, as at room temperature:

Eb, EC, show their values in the table! To Table 41, the change of the car was established in order to review the change in flexural modulus of polyamine (PA) due to humidity. Compared with other resins, the temperature is 25 itch, which is large, so it is absolutely dry (21 ° C to 21 ° C The value is also determined under the conditions. Absolute dry Tan 3J2408

^ -------- ^ ------- (Please read the notes on the back before filling out this page) 41! -N J I _ Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 28 494421

V. The description of the bending elasticity at the time of the invention (28), in the example (31) is 7500Mpa, in the examples (32), (33) is 10500Mpa. (High-temperature, high-humidity overtravel test) The structure of the circuit breaker shown in Fig. 2 is such that the stress applied to the crossbar 7 in the closed circuit state reduces the effect of the overtravel. The circuit breaker is used for 10 to 15 years. During this period, under high temperature and high humidity conditions in Southeast Asia or inside the road, if the closed circuit state is continuously maintained, when the crossbar 7 or the base 1B with poor overtravel performance is used, the contact pressure between the two contacts It almost disappears and damages the reliability of the power supply. In other words, the creep deformation amount, which is the main factor of overtravel, will not be saturated as long as the stress is added, so the final molded product will be completely destroyed by the creep. Then, the judgment of the overtravel reduction between the base 1B and the cross bar 7 is performed under the following conditions. Using the samples (Π) to (41) of the base and cross bar 7 formed as described above, they were assembled into a circuit breaker (100 amp range) and subjected to a high temperature and high humidity overtravel test. The test is to keep the assembled circuit breaker in a constant temperature and humidity tank at 85 degrees Celsius and 85% relative humidity for one week in the open circuit state. 'The circuit breaker is 40 degrees Celsius and relative humidity at 85 0 / 〇 in the closed circuit state. After being left for 3000 hours in a constant temperature strange wet bath, the over-travel reduction of the movable contact 5 of each pole was measured. From such a measurement result, that is, a measurement result of the overtravel characteristic, an overtravel reduction amount after 15 years is estimated, and based on the thickness of the contact, the reduction amount is a reference value (in the case of the first embodiment, it is determined as follows) (Experimental results) t For this paper butylene glycol dicarboxylate (PBT), polyethylene terephthalate This paper is sized to the Chinese National Standard (CNS) A4 (21 × 297 mm) 312408 (Please (Please read the precautions on the back before filling this page) Γ- 装 &*; * 丁 an in 1§ n ammt mMet i ϋ nn · I 1 29 494421 A7 ------------- B7_ V. Description of the invention (29) The results of the high temperature and high humidity overrun tests of vinegar (PET), polyamide (PA), and polyphenylene sulfide (pps) are shown in Tables 1 to 4. In addition, 'according to For the above reasons, the filling materials of the cross bar 7 in Tables 1 to 4 are inorganic filling materials, and the organic filling materials are included in the resin. Polybutylene terephthalate (PBT) sample examples (11) to (15) The base 1B consists of polybutylene terephthalate (pBT) and glass fiber (GF ), The example of the sum of bending elasticity (Eb + Ec) is a small value (13) and the example of bending elasticity Eb is a small value 03), (14) ultra-light at high temperature and humidity The results of the tests are mixed. The so-called flame retardant is, for example, a halogen-based compound (dibromopolydiene, brominated epoxy, etc.), and if the polybutylene terephthalate (PBT) is 100, the weight ratio is 25 to 40. In addition, the sample example UD'dW'ds) has very good impact resistance. At the same time, it is compared with those in Tables 2 to 4 described later, and the electric wires 25 are screwed to the terminal plate 23 (Figure 2). It is not easy to crack. As the base 1B, the flame retardant-containing polybutylene terephthalate (PBT) occupies 55. to 70% by weight, and the reinforcing material occupies 30 to .50. The weight is 'high overrun'. characteristic. At this time, from the perspective of the overtravel characteristics, the resin occupies 25 to 35% by weight, the material occupies 40 to 50% by weight, and the filler material occupies 20 to 30% by weight. From the viewpoint of good moldability, the resin Occupies 55 to 65% by weight, reinforced materials occupy 10 to 25% by weight, and filling materials occupy 10 to 25% by weight. This paper size applies the Zhongguanjia Standard (CNS) A4 specification (public). 312312

I order line 494421 A7 B7 5. The invention description (30) is better. (Table 1) Polybutylene terephthalate (PBT) Result material (WT) weight% average bomb MPa material (WI) weight% heat treatment slant average bomb drunk MPa 11 PBT: 68 ~ 72 + flame retardant GF : 28 to 32 8000 Resin: 88 to 92 GF · 8 to 12 Filling Regulation: 〇150 ° C 4 time + 180 ° C 4 time 9000 Pass 12 PBT: 68 to 72 + flame retardant GF: 28 to 32 8000 resin : 58-62 GF: 23-27 13-17 180 ° C8 time 11500 qualified 13 PBT: 83 ~ 87 + flame retardant GF · · 13 ~ 17 5100 resin: 58 ~ 62 GF: 23 ~ 27 180 ° C 8 hours 11500 failed 14 PBT: 83 to 87 + flame retardant GF: 13 to 17 5100 resin: 28 to 32 GF · 43 to 47: 23-27 130 ° C 2 time + 170 ° C 8 time 16000 failed 15 PBT : 55 ~ 59 + flame retardant GF: 41 ~ 45 11500 tree month purpose: 88 ~ 92 GF: 8 ~ 12 fill ^ #: 〇150 ° C 4 time + 180 ° C 4 time 9000 qualified polyethylene terephthalate Glycol ester (PET) (Please read the precautions on the back before filling out this page) Samples (21) to (29) of samples printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs are made of polymer base with flame retardant For examples composed of polyethylene terephthalate (PET) and glass fiber (GF), the flexural modulus of elasticity Eb is a small value (23), (24), and the flexural modulus of elasticity Ec is a small value ( 27) The results of the high-temperature and high-humidity overrun test are unacceptable. The so-called flame retardants are, for example, i-based compounds (dibromopolydiene and brominated epoxy, etc.). If the polyethylene terephthalate (PET) is 100, this paper standard applies Chinese national standards ( CNS) A4 specification (210 X 297 mm) 30 312408 Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Consumption Co-operative 4421 'A7 is ------ B7_ ^ V. Description of the invention (31) There is a weight ratio of 25 to 40 . Samples (21), (25), (26), (28), (29) are smaller and better than sample (22), and the sample (21), (25), (28), (29), the reduction of overtravel is smaller and better than that of sample (26). On the other hand, sample examples (22) and (26) have less influence on the alignment than sample examples (2h), (25), (28), and (29) f, and can effectively suppress the deformation (distortion) of the molded product, Warping. In addition, the sample examples (21), (25), (26), (28), and (29) are compared with each sample in Table 1. The melting point of the molded product is higher, and the base 1B is subjected to an overload and durability test. The result is less soluble. As the base 1B, the polyethylene terephthalate (PET) containing a flame retardant accounts for 45 to 60% by weight, and the reinforcing material occupies 40 to 55% of the amount. Characteristics. At this time, as for the characteristics of the horizontal defense 7, the overtravel characteristics are ‘resin occupies 25 to 35% by weight, and reinforcing materials occupies 40 to 50 /. The weight and filling material occupy 20 to weight. In addition, from the standpoint of good moldability, tree waxes occupy 55 to 65% by weight. The chemical materials occupy 10 to 25% by weight.

Lili brother fills in 10 to 25. /. Meeting J

Special preferences. J ------------- install -------- order ----------- line (please read the precautions on the back before filling this page)

31 312408 494421 Α7Β7 V. Description of the invention ⑺) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs (Table 2) Polyethylene terephthalate (PET) Test results Material (WT) Weight% Average elasticity MPa Material (WT) Weight% average age of heat treatment age MPa 21 PBT: 53 to 57 + flame retardant GF: 43 to 47 15000 resin: 58-62 GF: 23 to 27 Fill in ... 13 to 17 180 ° C 8 Time 11500 Passed 22 PBT: 73 to 77 + Flame retardant GF: 23 to 27 8500 Resin * 88 to 92 GF: 8 to 12 Rating: 〇150 ° C4 Time + 180〇C4 Time 9000 Combined 23 PBT: 78 ～ 82 + flame retardant GF: 18 to 22 7000 resin: 58 to 62 GF: 23 to 27 filler: 13 to 17 18 (TC 8 time 11500 failed) 24 PBT: 78 to 82 + flame retardant GF: 18 to 22 7000 resin: 28 ~ 32 GF: 43-47 Filling grade: 23 ~ 27 130 ° C2 time + 1 party 8 hours 丨 16000 failed 25 PBT: 53 ~ 57 + flame retardant GF: 43 ~ 47 15000 resin: 88 ～ 92 GF ·· 8 ～ 12 Filling grade: 〇150 ° C4 time + 180〇C4 time 9000 Pass 26 PBT: 68 ～ 72 + flame retardant GF: 28 ～ 22 10000 mm: 88-92 GF: 8 to 12 Filling material: 0 150 ° C4 time + 180 ° C4 time 9000 Pass 27 PPK: 68 to 72 + flame retardant GF: 28 to 32 10000 Tree month purpose: 90 to 94 GF: 6 to 10 Filling material: 〇 150 ° C4 time + 180 ° C4 time 8000 failed 28 PBT: 43-47 + flame retardant GF: 53 to 57 17000 resin: 88 to 92 GF: 8 to 12 filling material: 0 150 ° C4 time + 180 ° C4 Time 9000 qualified 29 PBT: 43-47 + flame retardant GF: 53 to 57 17000 Tree month purpose: 58 to 62 GF: 23 to 27 Filling · 13 to 17 180 ° C 8 hours 11500 Polyamine ( PA) The base 1B of sample example (31) is composed of polyamine (PA), glass fiber (GF), and magnesium hydroxide, which is equivalent to that disclosed in Japanese Patent Application Laid-Open No. 8-171847. The result of this sample (31) in the overtravel test was unacceptable. This paper size applies Chinese National Standard (CNS) A4 specification (210 X 297 mm) 32 312408 (Please read the precautions on the back before filling this page) φ B7 V. Description of the invention) In addition, 'Sample example (32) in the super料 ⑴) The result of the overtravel test is that the qualified fruit is not 5 grids, and the so-called flame retardants in the sample example are dentin-based desertified epoxy resin and the so-called elastomer is homing and agglomeration, · Ionic bond of pinene polymer: (ca.mer) or ethylene / propylene copolymer. If polyamine (from), 〇, flame retardant accounts for 50 to 70, elastomers account for the proportion. Weight from I to 30. In addition to sample example (33), in addition to the overtravel of the base of the circuit breaker, 1β also has good insulation characteristics after being cut off by electric shock and arcing between contacts. In addition, an elastomer was added to the polyamide of the base 1B of the sample example (33), and the impact resistance was worse than that of the sample example, but the overtravel characteristics were good. In addition, 'polyamine (PA) changes its flexural modulus of elasticity significantly due to humidity.' At room temperature and humidity, the flexural modulus of elasticity Eb tends to be slightly larger than that of other thermoplastic I resins. σ I ------ (Please read the precautions on the back before filling this page). Line · Printed by the Employee Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper is printed in accordance with China National Standard (CNS) A4 (210x 297) (Mm) 33 312408 494421 A7 _B7 V. Description of the invention (34) (3) Polyamine (PA) Result material (WT) weight% average elastic modulus MPa material (WT) weight% heat treated cake average elasticity tender 31 PA : 48 to 5 2 GF: 18 to 22 N for 01 ^: 28 to 32 6800 Wax: 28 to 32 GF: 43 to 47 Filled village: 23 to 27 130 ° C2 time + 170 ° C 8 time 16000 failed 32 PA: 56-60 + flap, agent + GF: 40-44 _ mm-90-94 GF · 6 ~ 10 Filled village: 〇15 (TC4 time + 180 〇C4 time 8000 failed 33 PA: 56-60 + Flame retardant + GF: 40 to 44 8400 Resin: 28 to 32 GF: 43-47 Filling grade ... 23 to 27 130 ° C2 time + 170 ° C 8 time 16 000 Qualified Polyphenylene Sulfide (PPS) (Please read the notes on the back before filling out this page) Printed Example (41) of the printed sample (41) by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Composed of PPS and glass fiber (GF), the results of high temperature and high humidity overtravel test are acceptable. The filling material added to the polyphenylene sulfide (PPS) is an inorganic filling material Calcium carbonate, for example, if polyphenylene sulfide (PPS) is 100, it accounts for 70 to 80% by weight. The shape of Example (41) is less distortion, and it is more melting than the molded products of the samples in Tables 1 and 2. (Table 4) wt.% Of polyphenylene sulfide (PPS) fruit material average elastic modulus MPa wt.% Of material heat treated cake average elastic modulus MPa 41 FPS: 33 ~ 37 GF: 63 ~ 67 + 21000 Resin: 58-62 GF: 23 ~ 27 Grading: 13 ~ 17 18CTC8 time 11500 Passed The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 34 312408 494421 Employees ’Intellectual Property Bureau of the Ministry of Economic Affairs Cooperative printed A7 _____ V. Description of invention (35) As mentioned above, sample examples (11), (12), (15), (21), (22), (25), (26), (2 8), (29), (3 3), (41 ), That is to say 45 + £ (^ 170001 ^ 0 ^ and 8000MPa $ Eb and 9000MPaSEc, the result of the high temperature and high humidity overtravel test is acceptable. In addition, sample examples (15), (21), (25) When (28), (29), (41), that is, Eb + Ecg 20500MPa and 9000MPaS Eb and 9000MPa SEc, the characteristics of high temperature and high humidity overtravel are better. Moreover, in sample examples (21), (29), and (41), that is, Eb + Ec2 25000MPa and 9000MPaS Eb ′ 22000MPa and 9000MPaS Ec g 17000Mpa, the characteristics of high temperature and high humidity overtravel are very good. In addition, it can be seen from Table 3 that when the main component of the molded product shown is polyamine (PA), warpage and shrinkage of the molded product and dimensional changes due to moisture absorption also promote creep. Deformation reduces the effect of overtravel. Therefore, as the main component of the molded product, in terms of overtravel characteristics, polybutylene terephthalate (PBT), polyethylene terephthalate (PET), Polyphenylene sulfide (PPS) is better. In addition, in order to comply with the base 1B of the circuit breaker, in addition to achieving miniaturization, weight reduction, and no waste during molding, it must have good heat resistance, mechanical strength, impact strength, appearance, flame resistance, and arc disconnection. After the requirements of insulation resistance, leakage traces, and low cost, materials such as polybutylene terephthalate (PBT) and polyethylene terephthalate (PET) are ideal. [Industrial Applicability] The present invention relates to a circuit breaker, which can be used in a switchboard or a branch I -------- t --------- ^ (Please read the Note: Please fill in this page again.) This paper size is in accordance with the Chinese National Standard (CNS) A4 (210 x 297 mm) 35 312408 494421 A7 __B7 V. Description of the invention (36) The backbone of the electric panel and control panel. Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives This paper is sized for the Chinese National Standard (CNS) A4 (210 X 297 mm) 36 312408 •-(Please read the precautions on the back before filling this page)

Claims (1)

494421 Printed flexural modulus A8, B8 C8 D8 by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 6. Application for a patent 1. A circuit breaker with a fixed contact device with fixed contacts and a fixed contact with the above The movable contact device of the separated movable contact, and a crimping spring which imparts a crimping force between the two contacts when the two points are in contact, and a cross-bar formed integrally with an insulating resin as a main component. While maintaining the above-mentioned movable contact device in a freely rotating manner, 'the elbow link mechanism connected to the lower link of the elbow link mechanism is rotationally transmitted around the drive shaft, and the handle is used to open the elbow link mechanism An opening and closing mechanism section for quickly turning on and off the movable contact device by the spring pressure of the elastic spring, and a molded housing formed by a base for supporting and supporting the opening and closing mechanism section and a cover covering the base on the handle side It is characterized in that: the above base is a molded product with thermoplastic resin as its main component, and its bending elasticity is Eb under constant temperature and humidity, and the above-mentioned crossbar is at Under constant temperature and humidity, its bending elasticity is Ec, and it can meet the following relationship: Eb + Ec ^ 17000Mpa ··· 〇) 8000MPa ^ Eb ··· ⑺ 9000MPa ^ Ec… ⑺ 2 · 如The circuit breaker of the first patent application scope, where Eb and Ec meet the relationship of the following formula; Eb + Ecg 20500Mpa… ⑷ 9000MPa ^ Eb… ⑺ 9000MPa ^ Ec… ⑻ -------------- ---------------- (Please read the precautions on the back before filling out this page) 3. If the circuit breaker of item 2 of the patent application scope, its t 494421 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 6. The scope of patent application A8 B8 C8 ----_— Ec conforms to the relationship of the following formula; Eb + Ec ^ 25000Mpa… ⑺ 9000MPa ^ Eb ^ 22000MPa… (8) 9000MPa ^ Ec ^ 17000MPa… (9) 04. The circuit breaker according to item 1 of the scope of patent application, wherein the thermoplastic wax is polybutylene terephthalate, polyethylene terephthalate, polyacid At least one of amine, aliphatic polyketone, polyphenylene sulfide, and a fusion material thereof. 5. The circuit breaker according to item 4 of the application, wherein the polyamide is at least one of nylon 66, nylon MXD6, nylon 46, and nylon 6T. 6. The circuit breaker according to item 4 of the application, wherein the thermoplastic resin is at least one of polybutylene terephthalate, polyphenylene sulfide, and a fusion material thereof. 7. The circuit breaker according to item i of the patent application scope, wherein the base contains 40 to 70% by weight of a flame retardant-added polybutylene terephthalate vinegar and 30 to 45% by weight of a reinforcing material. 8. The circuit breaker according to item 1 of the patent application scope, wherein the base contains 40 to 70% by weight of a flame retardant-added polybutylene terephthalate and 30 to 60% by weight of a reinforcing material. 9. The circuit breaker according to item 1 of the patent application scope, wherein the base contains 56 to 60% by weight of polyamide added with a flame retardant and synthetic rubber and 40 to 44% by weight of a reinforcing material. 10. For the circuit breaker of item 1 in the scope of patent application, the main paper size of the crossbar is applicable to China National Standard (CNS) A4 (210 X 297 mm) '75 " 312408 Μ ---- ---- Order --------- (Please read the notes on the back before filling this page) 494421 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 6. The scope of patent application is divided into phenol resin. 11. The circuit breaker according to item i in the scope of patent application, wherein the circuit breaker is multi-pole and has a slit extending from the wall surface orthogonal to the base wall in the direction of the tread surface. 12 · If the circuit breaker of item u of the patent application is applied, the wall of the father is divided by an equal thickness. C13 · If the surface of the circuit breaker base of the application item 11 of the patent application is installed on the front and back sides in an interactive manner. 14. If the circuit breaker of item 11 of the scope of patent application is a partition wall. 15. If the thickness of the base of the circuit breaker base item n in the scope of the patent application is the same as the wall thickness of the bottom wall of the base unit 16. If the circuit breaker of the n scope of the patent application is in the scope, the movable contacts and the fixed The contact storage section of the contact and the wall surface between the storage section of the opening and closing mechanism of the opening and closing mechanism section. 17. The circuit breaker according to item 16 of the patent application, wherein the slit is formed in a cracked manner on the front and back of the base. 18. The circuit breaker according to item 17 of the patent application, wherein the slit is connected to the base. The thickness of the wall between the inner sides is thinner than the thickness of the bottom of the base. 19. A circuit breaker comprising: a fixed contact device having a fixed contact, a movable contact device having a movable contact separated from the fixed contact, and between the two contacts when the two points are in contact A crimping spring that imparts crimping force, and a cross-shaped pattern that is integrally formed with an insulating resin as the main component. The cross-bar is held in the same way as the movable contact device in a freely rotating manner. The slit will be straight in the opening. Sewing by the base, the orthogonal gallbladder, the orthogonal wall between the slits ------------- installation -------- order ------- --Line (please read the precautions on the back before filling this page) This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 39 312408 Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs Consumer Cooperatives 494421 A8 B8 CS ___D8 6. In the scope of patent application, the rotation of the elbow link mechanism connected to the lower link of the elbow link mechanism is transmitted around the drive shaft, and the spring pressure of the elastic spring of the elbow link mechanism is opened by the handle. And make the above-mentioned movable contact device quickly turn on and off An opening-closing mechanism section, and a base for fixedly supporting the opening-closing mechanism section and a molded case formed by a cover covering the base on the handle side; characterized in that the above-mentioned base contains 56 to 60% by weight of an added flame retardant And elastomer polyamide and 40 to 44% by weight of reinforcing material. 20. The circuit breaker according to item 1 of the scope of patent application, wherein the cross bar contains 28 to 32% by weight of a phenol resin, 43 to 47% by weight of a reinforcing material, and 23 to 27% by weight of an inorganic filler. 21. The circuit breaker according to item 19 of the scope of patent application, wherein the proportion of flame retardant and synthetic rubber corresponds to 50 to 70 of halogen-based compound and 20 to 30% by weight of synthetic rubber corresponding to polyamide 100. 22 · —A circuit breaker comprising: a fixed contact device having a fixed contact, a movable contact device having a movable contact separated from the fixed contact, and two contacts when the two points are in contact A crimping spring that imparts crimping force between it and a cross bar integrally formed with an insulating resin as a main component. The cross bar holds the movable contact device in a freely rotating manner while being connected under the toggle link mechanism. The rotation of the elbow link mechanism of the connecting rod is transmitted around the transmission shaft, and the opening and closing mechanism of the movable contact device is quickly turned on and off by using the handle to open the elastic pressure of the elastic spring of the elbow link mechanism. And the fixed support for the base of the opening and closing mechanism part and the molded case formed by the cover covering the base on the handle side. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 public love) " 40 312408 Pack- -------- Order --------- · (Please read the notes on the back before filling this page) 494421 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A8 B8 CS D8 VI. Application Patent scope It is characterized in that the base contains 45 to 60% by weight of a polyethylene terephthalate with a flame retardant added and 40 to 55% by weight of a reinforcing material. 23. The circuit breaker according to item 22 of the scope of patent application, wherein the cross bar contains 55 to 65% by weight of a phenol resin, 10 to 25% by weight of a reinforcing material, and 10 to 25% by weight of an inorganic filler. 24. The circuit breaker according to item 22 of the scope of patent application, wherein the cross-bar contains 25 to 35% by weight of benzene tree sores, 40 to 50% by weight of a reinforcing material, and 20 to 30% by weight of an inorganic filler. 25. The circuit breaker according to item 22 of the scope of patent application, wherein the weight ratio of the sulfonate-based compound corresponding to the polyethylene terephthalate 100 is 25 to 40. 26 types of circuit breakers are provided with: A fixed contact device of a fixed contact, a movable contact device having a movable contact separated from the fixed contact, and a crimp spring that imparts a crimping force between the two contacts when the two points are in contact, and A cross bar integrally formed with an insulating resin as a main component, and while maintaining the movable contact device in a freely rotating manner, the cross bar is accompanied by rotation of the toggle link mechanism connected to the lower link of the toggle link mechanism Driven around the drive shaft, the handle is used to open the elbow joint-like mechanism by the spring pressure of the elastic spring of the spring, so that the movable contact device can be quickly turned on and off quickly, and the base and The moulded shell formed by the cover of the handle side covering the base; this paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 41 312408 ^ ----------- ------ ^ (Please read first (Please fill in this page again before filling in this page) 494421 A8 B8 C8 D8 6. The scope of patent application is characterized by: its seat contains 40 to 70% by weight of flame retardant added polyethylene terephthalate and 30 Reinforcement material to 60% by weight 'cross bar contains 25 to 35% by weight of phenol resin, 40 to 50% by weight of reinforcement material and 20 to 30% by weight of inorganic filler. 27 · —A circuit breaker including: a fixed contact device having a fixed contact, a movable contact device having a movable contact separated from the fixed contact, and two contacts when the two points are in contact A crimping spring 'which provides crimping force between it and a cross bar integrally formed with insulating wax as the main component. The cross bar holds the movable contact device in a freely rotating manner while being connected to the toggle link mechanism. The rotation of the lower link elbow link mechanism is transmitted around the transmission shaft, and the opening and closing mechanism section of the above-mentioned movable contact device is quickly turned on and quickly opened by using the handle to open the elastic pressure of the elastic spring of the elbow link mechanism. , And a fixed shell that supports the opening and closing mechanism part and a molded shell formed by the cover covering the base on the handle side; characterized in that the base contains polyethylene terephthalate with a flame retardant added 40 to 70% by weight of a polyethylene terephthalate with a flame retardant and 30 to 60% by weight of a reinforcing material, the cross bar contains 55 to 65% by weight of a phenanthrene resin and 10 to 25% by weight of Reinforcement and 10 to 25 Weight percent inorganic filler. 28 · —A circuit breaker comprising: a fixed contact device having a fixed contact, a movable contact device having a movable contact separated from the fixed contact, and two contacts when the two points are in contact The crimping springs that give crimping force between them, and the cross-bars that are integrally formed with insulating wax as the main component. The paper size of this cross-bar applies to China National Standard (CNS) A4 (210 X 297 mm) TTIWS (please first (Please read the notes on the back and fill in this page.) Order -------- Printed by the Consumers' Association of the Intellectual Property Bureau of the Ministry of Economic Affairs, the standard for China National Standards (CNS) A4 (21〇X 297 Public Love 43 Six) Scope of patent application: While maintaining the above-mentioned movable contact device in a freely rotating manner, the diaphragm is coupled with the rotation of the elbow link mechanism which is connected to the lower link of the elbow link mechanism to be driven around the drive shaft. An opening and closing mechanism section that quickly opens and closes the movable contact device by the spring pressure of the elastic spring of the open elbow flail mechanism, and a base that supports and supports the opening and closing mechanism section and covers the base with the handle side A molded shell formed by a cover; characterized in that the above base contains 55 to 70% by weight of polyethylene terephthalate with a flame retardant added and 30 to 45% by weight of a reinforcing material. 29. The circuit breaker according to item 22 of the scope of patent application, wherein the cross-bar contains 25 to 35 weight percent of phenol resin and 40 to 50 weight percent of reinforced material and 20 to 30 weight percent of inorganic Filling material. 30. The circuit breaker according to item 28 of the scope of patent application, wherein the cross-bar contains 55 to 65 wt.% Phenol resin and 5 to 25 wt.% Reinforcing material and 10 to 25 wt.% / 1 of inorganic fillers. 3 1 · As the circuit breaker of the 28th item of the patent scope, which corresponds to polyethylene terephthalate 100, the weight ratio of halogen-based compounds is 25 to 40. 32.—A kind of circuit breaker 'is provided with: a fixed contact device having a fixed contact, a movable contact device having a movable contact separated from the fixed contact, and two contacts when the two points are in contact A crimping spring that imparts crimping force between them, and a cross bar that is integrally formed with an insulating resin as the main component, the While holding the above-mentioned movable contact device in a freely rotating manner, the lever is coupled to the toggle link machine 312408 connected to the lower link of the toggle link mechanism (please read the precautions on the back before filling this page) 494421 Α8 Β8 CS D8 VI. The patent application scope of the spring pressure of the elastic spring makes the movable contact device quickly open and close the opening and closing mechanism part, and the base that supports and supports the opening and closing mechanism part and the cover covering the base by the handle side The formed molded case 'has a plurality of above-mentioned movable contact devices and becomes a multi-pole circuit breaker, which is characterized in that the main resin of the above-mentioned base is made of a thermoplastic resin' and is in contact with the base. The vertical wall surface of the bottom wall has a slit extending in the direction of the wall. 33 · If the circuit breaker of the scope of patent application No. 32, wherein the opening divides the orthogonal wall surface with an equal thickness α 34 · If the circuit breaker of the scope of the patent application No. 32, wherein the opening is formed by the base The front and back sides of the seat are installed interactively. 35. The circuit breaker of item 32 in the scope of patent application, wherein the orthogonal bet is a partition wall. 36. The circuit breaker according to item 32 of the scope of patent application, wherein the wall thickness of the base between the slits and the wall thickness of the bottom wall of the base are the same. Yin Jian π of the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page) 37'If you apply for the circuit breaker of the scope of patent No. 32, the orthogonal wall is the 'collection activity contact' And the fixed-point contact storage section, and the opening-closing mechanism storage section of the opening-closing mechanism storage section. 38. The circuit breaker according to item 37 of the application, wherein the slit is formed by cracking on the front and back sides of the base. 39. The circuit breaker according to claim 37, wherein the thickness of the wall between the slit and the inside of the base is thinner than the thickness of the bottom of the base. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 44 312408