Shielding cover quality detection structure

Abstract

The utility model provides a shielding case quality detection structure, belongs to the technical field of shielding case detection, and aims to solve the problems that in the using process of an existing shielding case quality detection structure, when an air pipe connected with a material suction assembly is damaged, the material suction assembly cannot stably adsorb a shielding case, deviation is easily caused, detection errors are caused, and the quality of the shielding case is influenced. The device comprises a feeding assembly which is fixedly mounted on the upper end surface of the right end of a machine body; the discharging assembly is fixedly installed on the upper end face of the left end of the machine body. The optocoupler detection table is fixedly mounted on the upper end surface of the machine body; the fixing plate is fixedly connected to the upper end face of the machine body. The guide groove is formed in the inner side of the fixing plate; the driving motor is fixedly installed on the rear end face of the fixing plate. The material taking rod is rotationally connected to the inner side of the fixing plate, and the material taking rod is fixedly connected with a rotating shaft of the driving motor; through the arrangement of the utility model, the detection of the connecting hose is realized, the detection of the quality of the shielding case is ensured, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of shielding cover detection, and more specifically, particularly relates to a shielding cover quality detection structure. Background Art

[0002] The shielding cover is a tool used to shield electronic signals. Its main function is to shield the influence of external electromagnetic waves on the internal circuit and the outward radiation of electromagnetic waves generated inside. During the production process of the shielding cover, it is usually necessary to test the flatness of the shielding cover. During the test, it is usually necessary to use a suction component to adsorb the shielding cover and then place the shielding cover on the optocoupler test bench for testing.

[0003] According to the application number: CN202220941194.5, a shielding cover detection packaging machine disclosed includes a main workbench located at the rear end of a punch press, and a material conveying mechanism corresponding to the punch press is arranged at the front end of the main workbench; a swinging suction mechanism corresponding to the material conveying mechanism is arranged at the center of the top of the main workbench, and both sides of the top of the main workbench are provided with an optical coupling detection mechanism corresponding to the swinging suction mechanism, and a liquid crystal display corresponding to the optical coupling detection mechanism is arranged on one side of the swinging suction mechanism; and a carrier packaging mechanism corresponding to the optical coupling detection mechanism is installed at both ends of the top of the main workbench. By opening the machine on both sides, there is no pause time for changing the package, and the production capacity per minute reaches more than 100 PCS per minute, thereby greatly reducing labor costs and effectively improving production efficiency and product quality.

[0004] Based on the above, during the use of the existing shielding cover quality inspection structure, when the air pipe connected to the suction component is damaged, it is difficult for the staff to discover and replace it in time, which may easily lead to the suction component of the shielding cover being not stable enough, and the shielding cover is prone to deviation when placed on the optical coupling inspection table, which may easily lead to detection errors and affect the inspection efficiency. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a shielding cover quality detection structure to solve the problem that in the existing shielding cover quality detection structure, when the air pipe connected to the suction component is damaged during use, it is difficult for the staff to discover and replace it in time, which may easily lead to the suction of the suction component on the shielding cover being not stable enough, and the shielding cover is prone to deviation when placed on the optical coupling detection table, which may easily lead to detection errors and affect the detection efficiency.

[0006] The purpose and effect of the shielding cover quality detection structure of the utility model are achieved by the following specific technical means:

[0007] A shielding cover quality detection structure, comprising a body, a feed assembly, a discharging assembly, an optical coupling detection platform, a fixed plate, a guide groove, a driving motor, a material picking rod, a sliding shaft, a detection frame, an adjustment rod, a material suction head, a detection tube, a connecting hose, an adjustment mechanism and a detection mechanism; the feed assembly is fixedly mounted on the upper end surface of the right end of the body; the discharging assembly is fixedly mounted on the upper end surface of the left end of the body; the optical coupling detection platform is fixedly mounted on the upper end surface of the body; the fixed plate is fixedly connected to the upper end surface of the body; the guide groove is provided on the inner side of the fixed plate; the driving motor is fixedly mounted on the rear end surface of the fixed plate; the material picking rod is rotatably connected to the inner side of the fixed plate, and the material picking rod is fixedly connected to the rotating shaft of the driving motor ; The sliding shafts are slidably connected to the inner sides of the guide grooves and the material picking rods; the detection frame is fixedly connected to the front end surface of the sliding shaft, and the detection frame is slidably connected to the front end surface of the fixed plate; there are two adjusting rods, and the two adjusting rods are slidably connected to the inner side of the detection frame; there are two groups of suction heads, and the two groups of suction heads are slidably connected to the inner sides of the two adjusting rods respectively; there are two groups of detection tubes, and the two groups of detection tubes are fixedly connected to the upper end surfaces of the two groups of suction heads respectively; there are two groups of connecting hoses, and the two groups of connecting hoses are fixedly connected to the upper end surfaces of the two groups of detection tubes respectively, and the two groups of connecting hoses are connected to the air pump; the adjusting mechanism is arranged on the inner side of the detection frame; the detection mechanism is arranged on the inner side of the detection tube.

[0008] Furthermore, the adjustment mechanism includes: a threaded block and a bidirectional screw; two threaded blocks are provided, and the two threaded blocks are respectively fixedly connected to the inner sides of the two adjustment rods; the bidirectional screw is rotatably connected to the inner side of the detection frame, and the bidirectional screw is threadedly connected to the two threaded blocks.

[0009] Furthermore, the adjustment mechanism also includes: connecting rods, threaded plates and threaded rods; the connecting rods are provided with two groups, and the two groups of connecting rods are respectively fixedly connected to the outsides of the two groups of suction heads; the threaded plates are provided with two groups, and the two groups of threaded plates are respectively fixedly connected to the outsides of the two groups of connecting rods; the threaded rods are provided with two groups, and the two groups of threaded rods are both rotatably connected to the outside of the detection frame, and the two groups of threaded rods are respectively threadedly connected to the inner sides of the two groups of threaded plates.

[0010] Furthermore, the detection mechanism includes: a cross, a fixed pull rod, a tension spring and a damping member; the cross is provided with two groups, and the two groups of crosses are slidingly connected to the inner sides of the two groups of detection tubes respectively; the fixed pull rod is provided with two groups, and the two groups of fixed pull rods are fixedly connected to the upper end surfaces of the two groups of crosses respectively; the tension spring is provided with multiple groups, and the upper ends of the multiple groups of tension springs are fixedly connected to the lower end surfaces of the two groups of crosses respectively, and the lower ends of the multiple groups of tension springs are fixedly connected to the inner sides of the two groups of detection tubes respectively; the damping member is provided with multiple groups, and the upper ends of the multiple groups of damping members are fixedly connected to the lower end surfaces of the two groups of crosses respectively, and the lower ends of the multiple groups of damping members are fixedly connected to the inner sides of the two groups of detection tubes respectively.

[0011] Furthermore, the detection mechanism also includes: a sliding piston and a fixed frame; the sliding piston is provided with two groups, and the two groups of sliding pistons are respectively slidably connected to the inner sides of the two groups of detection tubes; the fixed frame is provided with two groups, and the two groups of fixed frames are respectively fixedly connected to the lower end surfaces of the two groups of sliding pistons, and the two groups of fixed frames are respectively slidably connected to the two groups of fixed pull rods.

[0012] Furthermore, the detection mechanism also includes: connecting parts, detection lights, live wires, neutral wires and connecting wires; the connecting parts are provided in two groups, and the two groups of connecting parts are respectively fixedly connected to the inner sides of the two groups of crosses; the detection lights are provided in two groups, and the two groups of detection lights are respectively fixedly installed on the outer sides of the two groups of detection tubes; the live wires are provided in two groups, and the two groups of live wires are respectively fixedly connected to the lower end surfaces of the two groups of detection lights; the neutral wires are provided in two groups, and one ends of the two groups of neutral wires are respectively fixedly connected to the lower end surfaces of the two groups of detection lights, and the other ends of the two groups of neutral wires are both connected to the negative pole of the power supply; the connecting wires are provided in two groups, and the two groups of connecting wires are respectively fixedly connected to the inner sides of the two groups of detection tubes, and the two groups of connecting wires are both connected to the positive pole of the power supply.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model realizes simultaneous adjustment of the positions of two groups of suction heads through the setting of the adjustment mechanism. By rotating the bidirectional screw, the two adjustment rods can be driven to slide to the front and rear ends respectively under the action of the threaded connection between the bidirectional screw and the threaded block. The spacing between the two groups of suction heads can be adjusted by sliding the adjustment rod. By rotating the threaded rod, the threaded rod can adjust the positions of the two suction heads through the connecting rod under the action of the threaded connection with the threaded plate. The positions of the two groups of suction heads can be adjusted at the same time, which reduces the operation and improves the work efficiency. By setting the detection mechanism, the detection of the connecting hose is realized. When the connecting hose is damaged, the suction force generated by the air pump is difficult to resist the pulling force of the stretching spring to drive the cross to slide upward. At this time, the cross will gradually contact the connecting piece with the live wire and the connecting wire under the action of the stretching spring and the damping piece. At this time, the detection lamp is connected to the power supply to emit light, prompting the staff to perform maintenance in time, ensuring the detection of the quality of the shielding cover, and improving the work efficiency. By setting the above mechanism, the simultaneous adjustment of the positions of the two groups of suction heads is realized, the work efficiency is improved, and the detection of the connecting hose is also realized, ensuring the detection of the quality of the shielding cover, and improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the main body of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the guide groove of the utility model.

[0017] Figure 3It is a structural schematic diagram of the detection tube of the utility model.

[0018] Figure 4 It is a structural schematic diagram of the adjusting rod of the utility model.

[0019] Figure 5 It is a structural schematic diagram of the connecting rod of the utility model.

[0020] Figure 6 It is a structural schematic diagram of the threaded rod of the utility model.

[0021] Figure 7 It is a structural schematic diagram of a cross-section of the detection tube of the utility model.

[0022] Figure 8 It is a structural schematic diagram of a cross of the utility model.

[0023] Fig. 9 It is a structural schematic diagram of the connecting piece of the utility model.

[0024] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0025] 1. Machine body; 2. Feed assembly; 3. Discharge assembly; 4. Optocoupler detection table; 5. Fixed plate; 501. Guide groove; 6. Drive motor; 7. Pick-up rod; 8. Sliding shaft; 9. Detection frame; 10. Adjustment rod; 1001. Threaded block; 11. Suction head; 12. Detection tube; 13. Connecting hose; 14. Bidirectional screw; 15. Connecting rod; 1501. Threaded plate; 16. Threaded rod; 17. Cross; 1701. Fixed pull rod; 1702. Connecting piece; 18. Tension spring; 19. Damping piece; 20. Sliding piston; 21. Fixed frame; 22. Detection lamp; 2201. Live wire; 2202. Neutral wire; 23. Connecting wire. DETAILED DESCRIPTION

[0026] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0027] Embodiment 1:

[0028] As attached Figure 1-Figure 6 As shown:

[0029] The utility model provides a shielding cover quality detection structure, including a body 1, a feed component 2, a discharge component 3, an optical coupling detection platform 4, a fixed plate 5, a guide groove 501, a driving motor 6, a material picking rod 7, a sliding shaft 8, a detection frame 9, an adjustment rod 10, a suction head 11, a detection tube 12, a connecting hose 13 and an adjustment mechanism; the feed component 2 is fixedly mounted on the upper end surface of the right end of the body 1; the discharge component 3 is fixedly mounted on the upper end surface of the left end of the body 1; the optical coupling detection platform 4 is fixedly mounted on the upper end surface of the body 1; the fixed plate 5 is fixedly connected to the upper end surface of the body 1; the guide groove 501 is opened on the inner side of the fixed plate 5; the driving motor 6 is fixedly mounted on the rear end surface of the fixed plate 5; the material picking rod 7 is rotatably connected to the inner side of the fixed plate 5, and the material picking rod 7 and the driving motor 6 are fixedly mounted on the rear end surface of the fixed plate 5; The rotating shaft of the driving motor 6 is fixedly connected; the sliding shafts 8 are slidably connected to the inner side of the guide groove 501 and the material picking rod 7; the detection frame 9 is fixedly connected to the front end surface of the sliding shaft 8, and the detection frame 9 is slidably connected to the front end surface of the fixed plate 5; there are two adjusting rods 10, and the two adjusting rods 10 are slidably connected to the inner side of the detection frame 9; there are two groups of suction heads 11, and the two groups of suction heads 11 are respectively slidably connected to the inner sides of the two adjusting rods 10; there are two groups of detection tubes 12, and the two groups of detection tubes 12 are respectively fixedly connected to the upper end surfaces of the two groups of suction heads 11; there are two groups of connecting hoses 13, and the two groups of connecting hoses 13 are respectively fixedly connected to the upper end surfaces of the two groups of detection tubes 12, and the two groups of connecting hoses 13 are connected to the air pump; the adjustment mechanism is arranged on the inner side of the detection frame 9.

[0030] Among them, the adjustment mechanism includes: a threaded block 1001, a bidirectional screw 14, a connecting rod 15, a threaded plate 1501 and a threaded rod 16; there are two threaded blocks 1001, and the two threaded blocks 1001 are respectively fixedly connected to the inner sides of the two adjustment rods 10; the bidirectional screw 14 is rotatably connected to the inner side of the detection frame 9, and the bidirectional screw 14 is threadedly connected to the two threaded blocks 1001; there are two groups of connecting rods 15, and the two groups of connecting rods 15 are respectively fixedly connected to the outer sides of the two groups of suction heads 11; there are two groups of threaded plates 1501, and the two groups of threaded plates 1501 are respectively fixedly connected to the outer sides of the two groups of connecting rods 15; there are two groups of threaded rods 16, and the two groups of threaded rods 16 are both rotatably connected to the outer sides of the detection frame 9, and the two groups of threaded rods 16 are respectively threadedly connected to the inner sides of the two groups of threaded plates 1501.

[0031] Specific usage and function of this embodiment: By rotating the bidirectional screw 14, the two adjusting rods 10 can be driven to slide to the front and rear ends respectively under the action of the threaded connection between the bidirectional screw 14 and the threaded block 1001, and the spacing between the two groups of suction heads 11 can be adjusted by sliding the adjusting rod 10. By rotating the threaded rod 16, the positions of the two suction heads 11 can be adjusted through the connecting rod 15 under the action of the threaded connection with the threaded plate 1501. The positions of the two groups of suction heads 11 can be adjusted at the same time, thereby improving work efficiency.

[0032] Embodiment 2:

[0033] On the basis of the first embodiment, Figure 7-Figure 9 As shown, the detection mechanism includes: a cross 17, a fixed pull rod 1701, a connecting piece 1702, a tension spring 18, a damping piece 19, a sliding piston 20, a fixing frame 21, a detection lamp 22, a live wire 2201, a neutral wire 2202 and a connecting wire 23; the detection mechanism is arranged on the inner side of the detection tube 12; there are two groups of crosses 17, and the two groups of crosses 17 are respectively slidably connected to the inner sides of the two groups of detection tubes 12; there are two groups of fixed pull rods 1701, and the two groups of fixed pull rods 170 1 are fixedly connected to the upper end faces of the two groups of crosses 17; there are two groups of connecting members 1702, and the two groups of connecting members 1702 are fixedly connected to the inner sides of the two groups of crosses 17; there are multiple groups of tension springs 18, and the upper ends of the multiple groups of tension springs 18 are fixedly connected to the lower end faces of the two groups of crosses 17, and the lower ends of the multiple groups of tension springs 18 are fixedly connected to the inner sides of the two groups of detection tubes 12; there are multiple groups of damping members 19, and the upper ends of the multiple groups of damping members 19 are fixedly connected to the two groups of crosses 1 7, the lower ends of the multiple groups of damping members 19 are respectively fixedly connected to the inner sides of the two groups of detection tubes 12; there are two groups of sliding pistons 20, and the two groups of sliding pistons 20 are respectively slidably connected to the inner sides of the two groups of detection tubes 12; there are two groups of fixed frames 21, and the two groups of fixed frames 21 are respectively fixedly connected to the lower end surfaces of the two groups of sliding pistons 20, and the two groups of fixed frames 21 are respectively slidably connected to the two groups of fixed pull rods 1701; there are two groups of detection lights 22, and the two groups of detection lights 22 are respectively fixedly installed on the two groups of detection The outside of the measuring tube 12; two groups of live wires 2201 are provided, and the two groups of live wires 2201 are respectively fixedly connected to the lower end surfaces of the two groups of detection lamps 22; two groups of neutral wires 2202 are provided, and one end of the two groups of neutral wires 2202 are respectively fixedly connected to the lower end surfaces of the two groups of detection lamps 22, and the other ends of the two groups of neutral wires 2202 are connected to the negative pole of the power supply; two groups of connecting wires 23 are provided, and the two groups of connecting wires 23 are respectively fixedly connected to the inner sides of the two groups of detection tubes 12, and the two groups of connecting wires 23 are connected to the positive pole of the power supply.

[0034] The specific usage and function of this embodiment are as follows: when the air pump is started, the suction force generated by the air pump will adsorb the sliding piston 20, so that the sliding piston 20 drives the fixing frame 21 to slide upward, and the sliding of the fixing frame 21 will drive the cross 17 to slide upward through the fixed pull rod 1701. The sliding of the cross 17 will cause the connecting piece 1702 to be separated from the live wire 2201 and the connecting wire 23. At this time, the detection light 22 cannot be connected to the power supply. When the connecting hose 13 is damaged, the suction force generated by the air pump can hardly resist the pulling force of the stretching spring 18 to drive the cross 17 to slide upward. At this time, the cross 17 will gradually contact the connecting piece 1702 with the live wire 2201 and the connecting wire 23 under the action of the stretching spring 18 and the damping member 19. At this time, the detection light 22 is connected to the power supply and emits light, prompting the staff to perform maintenance in time.

[0035] In this article, there are a few points to note:

[0036] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0037] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0038] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A shielding cover quality detection structure, comprising a body (1), a feed assembly (2), a discharge assembly (3), an optical coupling detection platform (4), a fixing plate (5), a guide groove (501), a driving motor (6), a material taking rod (7), a sliding shaft (8), a detection frame (9), an adjustment rod (10), a material suction head (11), a detection tube (12), a connecting hose (13), an adjustment mechanism and a detection mechanism; the feed assembly (2) is fixedly mounted on the upper end surface of the right end of the body (1); the discharge assembly (3) is fixedly mounted on the upper end surface of the left end of the body (1); the optical coupling detection platform (4) is fixedly mounted on the upper end surface of the body (1); the characteristics are: The fixing plate (5) is fixedly connected to the upper end surface of the machine body (1); the guide groove (501) is provided on the inner side of the fixing plate (5); the driving motor (6) is fixedly installed on the rear end surface of the fixing plate (5); the feeding rod (7) is rotatably connected to the inner side of the fixing plate (5), and the feeding rod (7) is fixedly connected to the rotating shaft of the driving motor (6); the sliding shaft (8) is slidably connected to the inner side of the guiding groove (501) and the feeding rod (7); the detection frame (9) is fixedly connected to the front end surface of the sliding shaft (8), and the detection frame (9) is slidably connected to the front end surface of the fixing plate (5); the adjusting rod (10) is provided with two, and the two adjusting rods (10) are provided with two adjusting rods (10). The section rods (10) are all slidably connected to the inner side of the detection frame (9); the suction heads (11) are provided with two groups, and the two groups of suction heads (11) are respectively slidably connected to the inner sides of the two adjustment rods (10); the detection tubes (12) are provided with two groups, and the two groups of detection tubes (12) are respectively fixedly connected to the upper end surfaces of the two groups of suction heads (11); the connecting hoses (13) are provided with two groups, and the two groups of connecting hoses (13) are respectively fixedly connected to the upper end surfaces of the two groups of detection tubes (12), and the two groups of connecting hoses (13) are both connected to the air pump; the adjusting mechanism is arranged on the inner side of the detection frame (9); the detection mechanism is arranged on the inner side of the detection tube (12).

2. A shielding cover quality detection structure as claimed in claim 1, characterized in that: The adjustment mechanism comprises: a threaded block (1001) and a bidirectional screw (14); two threaded blocks (1001) are provided, and the two threaded blocks (1001) are respectively fixedly connected to the inner sides of the two adjustment rods (10); the bidirectional screw (14) is rotatably connected to the inner side of the detection frame (9), and the bidirectional screw (14) is threadedly connected to the two threaded blocks (1001).

3. A shielding cover quality detection structure as claimed in claim 2, characterized in that: The adjustment mechanism further comprises: a connecting rod (15), a threaded plate (1501) and a threaded rod (16); the connecting rod (15) is provided with two groups, and the two groups of connecting rods (15) are respectively fixedly connected to the outer sides of the two groups of suction heads (11); the threaded plate (1501) is provided with two groups, and the two groups of threaded plates (1501) are respectively fixedly connected to the outer sides of the two groups of connecting rods (15); the threaded rod (16) is provided with two groups, and the two groups of threaded rods (16) are both rotatably connected to the outer sides of the detection frame (9), and the two groups of threaded rods (16) are respectively threadedly connected to the inner sides of the two groups of threaded plates (1501).

4. A shielding cover quality detection structure as claimed in claim 1, characterized in that: The detection mechanism comprises: a cross (17), a fixed pull rod (1701), a tension spring (18) and a damping member (19); the cross (17) is provided with two groups, and the two groups of crosses (17) are respectively slidably connected to the inner sides of the two groups of detection tubes (12); the fixed pull rod (1701) is provided with two groups, and the two groups of fixed pull rods (1701) are respectively fixedly connected to the upper end surfaces of the two groups of crosses (17); the tension spring (18) is provided with a plurality of groups, and the upper ends of the plurality of tension springs (18) are respectively fixedly connected to the lower end surfaces of the two groups of crosses (17), and the lower ends of the plurality of tension springs (18) are respectively fixedly connected to the inner sides of the two groups of detection tubes (12); the damping member (19) is provided with a plurality of groups, and the upper ends of the plurality of damping members (19) are respectively fixedly connected to the lower end surfaces of the two groups of crosses (17), and the lower ends of the plurality of damping members (19) are respectively fixedly connected to the inner sides of the two groups of detection tubes (12).

5. A shielding cover quality detection structure as claimed in claim 4, characterized in that: The detection mechanism also includes: a sliding piston (20) and a fixed frame (21); the sliding piston (20) is provided with two groups, and the two groups of sliding pistons (20) are respectively slidably connected to the inner sides of the two groups of detection tubes (12); the fixed frame (21) is provided with two groups, and the two groups of fixed frames (21) are respectively fixedly connected to the lower end surfaces of the two groups of sliding pistons (20), and the two groups of fixed frames (21) are respectively slidably connected to the two groups of fixed pull rods (1701).

6. A shielding cover quality detection structure as claimed in claim 5, characterized in that: The detection mechanism further comprises: a connecting piece (1702), a detection lamp (22), a live wire (2201), a neutral wire (2202) and a connecting wire (23); the connecting piece (1702) is provided in two groups, and the two groups of connecting pieces (1702) are respectively fixedly connected to the inner sides of the two groups of crosses (17); the detection lamp (22) is provided in two groups, and the two groups of detection lamps (22) are respectively fixedly installed on the outer sides of the two groups of detection tubes (12); the live wire (2201) is provided in two groups, and the two groups The live wires (2201) are respectively fixedly connected to the lower end surfaces of the two groups of detection lamps (22); the neutral wires (2202) are provided in two groups, one end of the two groups of neutral wires (2202) are respectively fixedly connected to the lower end surfaces of the two groups of detection lamps (22), and the other ends of the two groups of neutral wires (2202) are both connected to the negative electrode of the power supply; the connecting wires (23) are provided in two groups, the two groups of connecting wires (23) are respectively fixedly connected to the inner sides of the two groups of detection tubes (12), and the two groups of connecting wires (23) are both connected to the positive electrode of the power supply.

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