Assembly carrier for heating system of circuit breaker

Abstract

The utility model relates to an assembling carrier for a heating system on a circuit breaker, which is characterized by comprising a base, a concave cavity is arranged on the base, and an actuating mechanism positioning area, a bimetallic strip positioning area and a wiring terminal positioning area are arranged in the concave cavity. A first positioning block, a second positioning block and a positioning shaft used for installing a torsion spring are arranged in the executing mechanism positioning area, the two positioning blocks are located on the periphery of the positioning shaft and are separated from the positioning shaft, and a plurality of bimetallic strip positioning grooves allowing bimetallic strips to be inserted are formed in the bimetallic strip positioning area. And a wiring terminal positioning groove for positioning a wiring terminal and a wiring board positioning groove for positioning a wiring board are arranged in the wiring terminal positioning area. According to the technical scheme, the assembling carrier for the heating system on the circuit breaker is provided with the positioning area, all parts needing to be assembled are clamped and positioned, and the structure is accurate after assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker component assembly, and in particular to an assembly carrier for the upper thermal system of a circuit breaker. Background Art

[0002] A circuit breaker refers to a switching device that can connect, carry, and interrupt the current under normal circuit conditions, and can also connect, carry for a certain time, and interrupt the current under specified abnormal circuit conditions (overload, short circuit); a circuit breaker generally consists of an actuator, an electromagnetic system, a thermal tripping system, and a wire part, and the actuator and the electromagnetic system are electrically connected through moving and static contacts. When problems such as overload and short circuit occur, the actuator is driven by the electromagnetic system to act, causing the moving contact and the static contact to separate from each other, thereby completing the opening in the abnormal state.

[0003] For example, the invention patent application with the publication number CN115938881A discloses a circuit breaker, which includes a housing, a magnetic tripping system, an arc extinguishing system, a thermal tripping system, a moving and static contact group, and an actuator. Wiring terminal assemblies are provided on both sides of the housing, and the moving and static contact groups are respectively electrically connected to the wiring terminal assemblies. The actuator includes a rotating handle, the rotating handle is rotatably fixed on the housing, a moving contact is provided at the lower end of the rotating handle, a swing rod and a V-shaped swing arm are rotatably provided on the rotating handle, the thermal tripping component includes a bimetallic strip, one end of the bimetallic strip is fixed to the swing arm, and the other end is electrically connected to the wiring terminal assembly. A torsion spring is provided on the rotating handle, and the bimetallic strip is generally electrically connected to the wiring terminal through a wiring board.

[0004] During the production of a circuit breaker, the mutual assembly of various components needs to be achieved, including the assembly between the actuator, the bimetallic component, and the wiring terminal, and each component needs to be assembled into the housing. The existing assembly method mainly relies on manual assembly, and the manual assembly method has extremely low efficiency and is not suitable for the long-term development of enterprises. Therefore, there is an urgent need for assembly equipment for automatic assembly, and the assembly equipment needs to carry each component through an assembly carrier during assembly, so the requirements for the tooling carrier are relatively high. Content of the Utility Model

[0005] The purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides an assembly carrier for the upper thermal system of a circuit breaker, which is provided with a positioning area to clamp and position the components to be assembled, so that the structure after assembly is precise.

[0006] Technical solution of the utility model: An assembly carrier for the upper thermal system of a circuit breaker, including a base, a concave cavity is provided on the base, an actuator positioning area, a bimetal positioning area and a terminal block positioning area are provided in the concave cavity, a first positioning block, a second positioning block and a positioning shaft for installing a torsion spring are provided in the actuator positioning area, the two positioning blocks are respectively located on the outer periphery of the positioning shaft and are arranged at intervals from the positioning shaft, a plurality of bimetal positioning grooves for inserting the bimetal are provided in the bimetal positioning area, and a terminal block positioning groove for positioning the terminal block and a wiring board positioning groove for positioning the wiring board are provided in the terminal block positioning area.

[0007] By adopting the above technical solution, positioning areas for positioning the actuator, bimetal and terminal block are provided on the carrier to position the components to be assembled, so that the orientations of the components are the same when assembling and feeding, which is convenient for subsequent clamping into the shell for assembly. After assembly, the structures between the components are precise, improving the product qualification rate and assembly efficiency.

[0008] Further setting of the utility model: The first positioning block is located above the positioning shaft, the first positioning block is in an inclined "L" shape, the second positioning block is inclined and located below the positioning shaft, and a first arc-shaped groove and a second arc-shaped groove adapted to the rotating handle are provided in the second positioning block along its inclined direction.

[0009] Further setting: A third positioning block and a fourth positioning block in an inverted "V" shape are provided in the bimetal positioning area. The third positioning block is integrally arranged on the left inner side wall of the base, and the bimetal positioning groove is provided on the third positioning block. A fifth positioning block is also provided in the bimetal positioning area. The fifth positioning block is arranged on the side of the fourth positioning block close to the terminal block positioning area, and the bimetal positioning groove is formed between the fifth positioning block and the fourth positioning block.

[0010] Further setting: A sixth positioning block and a seventh positioning block are provided in the terminal block positioning area. The sixth positioning block is integrally formed on the right inner side wall of the base, and the terminal block positioning groove is provided on the sixth positioning block. The seventh positioning block is located below the sixth positioning block and on the side close to the bimetal positioning area, and the wiring board positioning groove is provided on the seventh positioning block.

[0011] Further setting: An eighth positioning block is also provided in the actuator positioning area. The eighth positioning block corresponds to the position of the second arc-shaped groove and forms a clamping groove with the second positioning block.

[0012] Further setting: A plurality of support blocks are provided on the side of the fourth positioning block close to the third positioning block. Each support block is integrally formed with the fourth positioning block, and the upper end surface of each support block is lower than the upper end surface of the second fixing.

[0013] Further setting: A baffle is further provided in the wiring terminal positioning area. The baffle is integrally formed on the right inner wall of the base. The baffle is located below the sixth positioning block and is spaced apart from the sixth positioning block to form a notch for the end of the wiring board to be inserted.

[0014] With the above further setting, the positioning shaft passes through the torsion spring and the rotating handle. The upper part of the rotating handle is located between the first positioning block and the positioning shaft, and the lower part is located between the second positioning block and the rotating shaft. The shape of the fourth positioning block is adapted to the middle position of the bimetallic strip. The bimetallic strip is inserted into the positioning groove. The wiring terminal is located in the wiring terminal positioning groove. One end of the wiring board is located in the wiring board positioning groove, and the other end is located in the notch. The positioning blocks cooperate with each other to position the actuator, the bimetallic strip and the wiring terminal, so that their structures are stable in the carrier, and the left, right, up and down positions of each component can be limited. When the carrier is loaded, the components in the carrier will not shift. The shapes of the positioning blocks are adapted to the corresponding components, which can improve the stability and accuracy. When the components are placed in the carrier, the loading orientation can be provided, the installation error can be reduced, and the assembly efficiency can be improved. Description of the Drawings

[0015] Figure 1 Schematic diagrams of the components of the specific embodiment of the present invention;

[0016] Figure 2 Schematic diagram of the components of the specific embodiment of the present invention installed in the carrier;

[0017] Figure 3 Cross-sectional view of the carrier after installing the components of the specific embodiment of the present invention;

[0018] Figure 4 Schematic diagram of the carrier of the specific embodiment of the present invention;

[0019] Figure 5 is Figure 4 Enlarged view of part Q in

[0020] Figure 6 is Figure 4 Enlarged view of part W in

[0021] Figure 7 is Figure 4 Enlarged view of part E in

[0022] In the figure, 1 is the base; 11 is the concave cavity; 111 is the actuator positioning area; 1111 is the first positioning block; 1112 is the second positioning block; 1113 is the positioning shaft; 1114 is the first arc-shaped groove; 1115 is the second arc-shaped groove; 1116 is the eighth positioning block; 1117 is the clamping groove; 112 is the bimetal positioning area; 1121 is the bimetal positioning groove; 1122 is the third positioning block; 1123 is the fourth positioning block; 1124 is the fifth positioning block; 1125 is the support block; 113 is the terminal block positioning area; 1131 is the terminal block positioning groove; 1132 is the wiring board positioning groove; 1133 is the sixth positioning block; 1134 is the seventh positioning block; 1135 is the baffle; 1136 is the notch; 100 is the actuator; 200 is the bimetal; 300 is the terminal block; 400 is the wiring board. Detailed implementation mode

[0023] Next, the technical solutions in this embodiment will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back...) are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0025] In addition, in the present invention, the descriptions such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. In the description of the present invention, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0027] Such as Figures 1-7As shown in the figure, an assembly carrier for the upper thermal system of a circuit breaker includes a base 1. A concave cavity 11 is provided on the base 1. An actuator positioning area 111, a bimetal positioning area 112, and a terminal block positioning area 113 are provided in the concave cavity 11. A first positioning block 1111, a second positioning block 1112, and a positioning shaft 1113 for installing a torsion spring are provided in the actuator positioning area 111. The two positioning blocks are respectively located on the outer periphery of the positioning shaft 1113 and are spaced apart from the positioning shaft 1113. A number of bimetal positioning slots 1121 for inserting the bimetal are provided in the bimetal positioning area 112. A terminal block positioning slot 1131 for positioning the terminal block and a wiring board positioning slot 1132 for positioning the wiring board are provided in the terminal block positioning area 113. Positioning areas for positioning the actuator 100, the bimetal 200, and the terminal block 300 are provided on the carrier to position the components to be assembled, so that the components face the same direction when assembled and fed, which is convenient for subsequent clamping into the housing for assembly. After assembly, the structures between the components are precise, improving the product qualification rate and assembly efficiency.

[0028] Specifically, the first positioning block 1111 is located above the positioning shaft 1113. The first positioning block 1111 is in an inclined "L" shape. The second positioning block 1112 is inclined below the positioning shaft 1113. The second positioning block 1112 is provided with a first arc-shaped groove 1114 and a second arc-shaped groove 1115 adapted to the rotating handle along its inclined direction. An eighth positioning block 1116 is also provided in the actuator positioning area 111. The eighth positioning block 1116 corresponds to the position of the second arc-shaped groove 1115 and forms a clamping groove 1117 with the second positioning block 1112.

[0029] Specifically, a third positioning block 1122 and a fourth positioning block 1123 in an inverted "V" shape are provided in the bimetal positioning area 112. The third positioning block 1122 is integrally provided on the left inner side wall of the base 1, and the bimetal positioning slot 1121 is provided on the third positioning block 1122. A fifth positioning block 1124 is also provided in the bimetal positioning area 112. The fifth positioning block 1124 is provided on the side of the fourth positioning block 1123 close to the terminal block positioning area 113. A bimetal positioning slot 1121 is formed between the fifth positioning block 1124 and the fourth positioning block 1123. A number of support blocks 1125 are provided on the side of the fourth positioning block 1123 close to the third positioning block 1122. Each support block 1125 is integrally formed with the fourth positioning block 1123, and the upper end surface of each support block 1125 is lower than the upper end surface of the second fixing.

[0030] Specifically, a sixth positioning block 1133 and a seventh positioning block 1134 are provided in the terminal positioning area 113. The sixth positioning block 1133 is integrally formed on the right inner wall of the base 1. The terminal positioning groove 1131 is provided on the sixth positioning block 1133. The seventh positioning block 1134 is located below the sixth positioning block 1133 and is close to the bimetal positioning area 112. The wiring board positioning groove 1132 is provided on the seventh positioning block 1134. A baffle 1135 is further provided in the terminal positioning area 113. The baffle 1135 is integrally formed on the right inner wall of the base 1. The baffle 1135 is located below the sixth positioning block 1133 and is spaced apart from the sixth positioning block 1133 to form a notch 1136 for the end of the wiring board 400 to be inserted. Each positioning block is integrally formed on the base 1, which can also enhance the firmness of the base 1. The base 1 is square-shaped. V-shaped grooves are provided on the outer side walls of the four sides of the base 1. Convex columns are provided on the inner side wall of the base corresponding to the positions of the V-shaped grooves. The setting of the V-shaped grooves enables accurate positioning of the carrier. When the carrier is conveyed on the assembly equipment and reaches the assembly station, the carrier is positioned by the positioning member being inserted into the V-shaped grooves. When the picking member picks up the components in the carrier, the structure of the carrier is stable.

[0031] When each component is located in the carrier, the positioning shaft 1113 passes through the torsion spring and the rotating handle. The upper part of the rotating handle is located between the first positioning block 1111 and the positioning shaft 1113, and the lower part is located between the second positioning block 1112 and the rotating shaft. The shape of the fourth positioning block 1123 is adapted to the middle position of the bimetal. The bimetal is inserted into the positioning groove. The terminal is located in the terminal positioning groove 1131. One end of the wiring board is located in the wiring board positioning groove 1132, and the other end is located in the notch 1136. The cooperation of each positioning block can position the actuator, the bimetal and the terminal, making their structures stable in the carrier, and can limit the left, right, up and down positions of each component. When the carrier is loaded, the components in the carrier will not shift. The shapes of each positioning block are adapted to the corresponding components, which can improve the stability and accuracy. When the components are placed in the carrier, the loading orientation can be provided, reducing the installation error and improving the assembly efficiency. Moreover, the bottoms of the components are in contact with the base 1, facilitating the subsequent picking member to take them away from their respective positioning areas.

Claims

1. An assembly carrier for a thermal system on a circuit breaker, characterized in that: The invention comprises a base (1), wherein a cavity (11) is provided on the base (1), wherein an actuator positioning area (111), a bimetallic strip positioning area (112) and a terminal block positioning area (113) are provided in the cavity (11), wherein a first positioning block (1111), a second positioning block (1112) and a positioning shaft (1113) for installing a torsion spring are provided in the actuator positioning area (111), wherein the two positioning blocks are respectively located on the outer periphery of the positioning shaft (1113) and are arranged separately from the positioning shaft (1113), wherein a plurality of bimetallic strip positioning grooves (1121) for inserting bimetallic strips are provided in the bimetallic strip positioning area (112), and wherein a terminal block positioning groove (1131) for positioning a terminal block and a terminal block positioning groove (1132) for positioning a terminal block are provided in the terminal block positioning area (113).

2. The assembly carrier of the circuit breaker upper heating system according to claim 1, characterized in that: The first positioning block (1111) is located on the upper side of the positioning shaft (1113), the first positioning block (1111) is in an inclined "L" shape, the second positioning block (1112) is inclined on the lower side of the positioning shaft (1113), and the second positioning block (1112) is provided with a first arc-shaped groove (1114) and a second arc-shaped groove (1115) adapted to the turning handle along its inclined direction.

3. The assembly carrier of the circuit breaker thermal system according to claim 1 or 2, characterized in that: A third positioning block (1122) and a fourth positioning block (1123) arranged in an inverted "V" shape are provided in the bimetallic strip positioning area (112); the third positioning block (1122) is integrally arranged on the left inner wall of the base (1), and the third positioning block (1122) is provided with the bimetallic strip positioning groove (1121); a fifth positioning block (1124) is further provided in the bimetallic strip positioning area (112); the fifth positioning block (1124) is arranged on a side of the fourth positioning block (1123) close to the terminal block positioning area (113); and the bimetallic strip positioning groove (1121) is formed between the fifth positioning block (1124) and the fourth positioning block (1123).

4. The assembly carrier of the thermal system of the circuit breaker according to claim 1 or 2, characterized in that: A sixth positioning block (1133) and a seventh positioning block (1134) are provided in the terminal block positioning area (113); the sixth positioning block (1133) is integrally formed on the right inner wall of the base (1); the sixth positioning block (1133) is provided with the terminal block positioning groove (1131); the seventh positioning block (1134) is located at the lower side of the sixth positioning block (1133) and close to the bimetallic strip positioning area (112); the seventh positioning block (1134) is provided with the terminal block positioning groove (1132).

5. The assembly carrier of the circuit breaker thermal system according to claim 2, characterized in that: An eighth positioning block (1116) is also provided in the actuator positioning area (111). The eighth positioning block (1116) corresponds to the position of the second arc-shaped groove (1115) and forms a clamping groove (1117) with the second positioning block (1112).

6. The assembly carrier of the circuit breaker thermal system according to claim 3, characterized in that: A plurality of support blocks (1125) are provided on one side of the fourth positioning block (1123) close to the third positioning block (1122); each support block (1125) is integrally formed with the fourth positioning block (1123); and an upper end surface of each support block (1125) is lower than the second fixed upper end surface.

7. The assembly carrier of the circuit breaker thermal system according to claim 4, characterized in that: A baffle (1135) is also provided in the terminal block positioning area (113); the baffle (1135) is integrally formed on the right inner wall of the base (1); the baffle (1135) is located below the sixth positioning block (1133) and is separated from the sixth positioning block (1133) to form a notch (1136) for inserting the end of the terminal block.

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