Wiring terminal seat of electrical test equipment

Abstract

A wiring terminal seat of electrical test equipment comprises a wiring body, a binding post and a conductive assembly, spring grooves are arranged on the upper sides of the two ends of the wiring body, a lamp groove is arranged in the middle of the upper side of the wiring body, a guide seat is arranged in the lamp groove, and threaded sleeves with internal threads are arranged on the side edges of the spring grooves on the lower sides of the two ends of the wiring body. Binding posts are arranged at the outer edges of the spring grooves at the upper sides of the two ends of the connecting body; fixing rings are arranged at the upper parts of one sides of the two binding posts; a lamp sleeve is arranged on the outer edge of the lamp groove on the upper side of the connecting body, the spring at one end of the conductive component A is arranged in a lower inner cavity of one binding post, the spring at the other end of the conductive component A is arranged in the lamp sleeve, and the spring of the conductive component B is arranged in a lower inner cavity of the other binding post. As the binding post of the terminal seat is fixed on the outer edge of the upper part of the spring groove through the welding glue, the binding post does not shift due to the pulling of the wire when the wire is manually touched by accident.

Description

Technical Field

[0001] The utility model relates to a terminal seat, in particular to a wiring terminal seat of electrical testing equipment. Background Art

[0002] Electrical testing is one of the main physics courses in middle schools. Through experiments, students can master the principles of using basic electrical instruments, understand circuit testing, master the use of instruments and meters, realize the testing of various basic electrical parameters in circuits, master the method of displaying electrical signal waveforms, and master the use of signal generators and power supplies.

[0003] The terminal block usually includes a connecting body, a terminal post and a conductive component. Conical spring grooves are provided on the upper sides of both ends of the connecting body, and the lower inner walls of the two spring grooves are provided with threads. A lamp groove is provided in the center of the upper side of the connecting body, and a guide seat is provided in the lamp groove. A cylindrical terminal post is movably placed on the upper outer edge of the two spring grooves, and a cylindrical lamp sleeve is provided on the upper outer edge of the lamp groove; the conical spring at one end of one of the conductive components is movably arranged behind the inner cavity of a terminal post and is tightened and fixed by a screw, and the spring at the other end of the conductive component is movably arranged in the lamp sleeve, and the conical spring of the other conductive component is movably arranged behind the inner cavity of another terminal post and is tightened and fixed by a screw.

[0004] During operation, one end of the positive wire is connected to the positive pole of the terminal block in the electrical equipment, and the plug at the other end of the positive wire is inserted into the lower inner cavity of a terminal post. One end of the negative wire is connected to the negative pole of the terminal block in the electrical equipment, and the plug at the other end of the negative wire is inserted into the lower inner cavity of another terminal post. The terminal post is stabilized by the spring of the conductive component.

[0005] Although this terminal block has the advantages of light texture, simple operation, and easy disassembly and assembly, the general feedback result is that the lower part of the terminal is easy to deviate and shift, resulting in poor contact and affecting electrical testing. The reason is that when the operator's clothes or cuffs accidentally touch the wire, the spring of the conductive component will also twist to one side and cause the terminal to shift; in addition, the plug at one end of the wire is easy to withdraw from the terminal. The reason is that when the wire is dragged for various reasons, the wire will pull the plug and cause the plug to withdraw from the terminal. Summary of the Invention

[0006] The purpose of the present utility model is to overcome the deficiencies of the prior art and to provide a terminal block for electrical testing equipment, wherein spring grooves are provided on the upper sides of both ends of a connection body of the terminal block, a lamp groove is provided in the center of the upper side of the connection body, terminal blocks are fixedly provided on the upper outer edges of the two spring grooves, a lamp cover is provided on the upper outer edge of the lamp groove, and the two terminal blocks are equipped with matching conductive components; since the terminal blocks of the terminal block are fixed to the upper outer edge of the spring groove by welding glue, when the wires are accidentally touched by humans, the terminal blocks will not be displaced due to the pulling of the wires.

[0007] The purpose of the utility model is achieved through the following technical solutions: including a connection body, a terminal and a conductive component, the rectangular connection body is made of PV plastic, spring grooves are provided on both ends of the connection body, a guide piece is provided on the inner wall of one spring groove, a lamp groove is provided in the center of the upper side of the connection body, a guide seat is provided in the lamp groove, a wire groove is provided on the upper side of one end of the connection body, a connecting line is provided in the wire groove, a limiting groove is provided on the upper side of the other end of the connection body, and the spring groove side edges on the lower sides of the two ends of the connection body are It is provided with a screw sleeve with an internal thread, and the outer edges of the spring grooves on the upper sides of both ends of the connecting body are provided with PV material terminals, and a fixing ring is provided on the upper side of each of the two terminals. A lamp cover is provided on the outer edge of the lamp groove on the upper side of the connecting body, and the spring at one end of the conductive component A is movably arranged in the lower inner cavity of a terminal, and the spring at the other end of the conductive component A is movably arranged in the lamp cover. The middle section of the conductive component A is movably arranged in the limit groove, and a lamp bead is movably provided in the lamp cover. The spring of the conductive component B is movably arranged in the lower inner cavity of another terminal.

[0008] The beneficial effects of the present invention are as follows: a screw sleeve is provided on the lower side of the connecting body, so that the two conductive components can be flexibly installed and disassembled; by fixing the terminal on the outer edge of the upper side of the two spring grooves, the conical springs at one end of the two conductive components will not twist due to the dragging of the wire, thereby improving the stability of the conduction and solving the practical problem of unstable connection between the wire and the terminal; by fixing one end of the wire by the fixing ring, the plug will not exit the inner cavity of the terminal due to the pulling of the wire, thereby solving the practical problem of unstable contact between the plug and the conductive component. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the wiring body structure of the terminal block of the utility model.

[0010] Figure 2 This is a schematic diagram of the terminal structure of the terminal block of the utility model.

[0011] Figure 3 This is a schematic diagram of the installation of the terminal posts of the terminal block of the utility model.

[0012] Figure 4 This is a schematic diagram of the conductive component structure of the terminal seat of the present utility model.

[0013] Figure 5 It is an overall plan view of the terminal seat of the present invention.

[0014] Figure 6 This is a working principle diagram of the terminal block of the utility model.

[0015] 1. Wire connection body; 2. Spring slot; 3. Guide piece; 4. Wire slot; 5. Lamp slot; 6. Guide base; 7. Limit slot; 8. Screw; 9. Fixing ring; 10. Terminal; 11. Lamp cover; 12. Conductive component A; 13. Screw; 14. Conductive component B; 15. Lamp bead; 16. Electrical equipment; 17. Wire; 18. Plug. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] It should be noted that the terms "upper side", "lower side", "outer side", "center", "upper part", "lower part", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0018] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "set," "connected," etc., should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in specific circumstances.

[0019] See also Figure 1 , the specifications of the connection body 1 need to be determined according to the model of the electrical equipment 16, and a conical spring groove 2 is provided in the center of the upper side of both ends of the connection body 1, and the lower ends of the two spring grooves 2 penetrate the corresponding lower side of the connection body 1, and an arc-shaped guide piece 3 is provided on the upper part of the inner wall of one side of one spring groove 2. A circular lamp groove 5 is provided in the center of the upper side of the connection body 1, and a circular copper guide seat 6 is provided on the lower side of the lamp groove 5. A limiting groove 7 that can only accommodate the middle section of the conductive component A12 is provided on the upper side of one end of the connection body 1, and the limiting groove 7 is located between a spring groove 2 and the lamp groove 5. A wire groove 4 is provided on the upper side of the other end of the connection body 1, and a connecting line is provided in the wire groove 4. One end of the connecting line extends to the inner cavity of the corresponding lamp groove 5 and is connected to the guide seat 6. The other end of the connecting line extends to the inner cavity of the corresponding spring groove 2 and is connected to the guide piece 3.

[0020] The lower side of the connecting body 1 is hollowed out, and the cavity is located inside the lower half of the connecting body 1. The side edges of the spring grooves 2 on the lower sides of both ends of the connecting body 1 are vertically provided with screw sleeves 8 with internal threads. The inner cavities of the two screw sleeves 8 are both conical structures. The two screw sleeves 8 and the connecting body 1 are formed by one-time reverse molding.

[0021] Spring slots 2 are provided on the upper sides of both ends of the connecting body 1, so that the two conductive components can be movably installed and fixed by the springs at one end, which is beneficial to the rapid conduction of the circuit.

[0022] A screw sleeve 8 is provided on the lower side of the connecting body 1 so that the two conductive components can be flexibly installed and removed.

[0023] It should be noted that the upper opening of the wire trough 4 is filled with solder paste.

[0024] It should be noted that the inner cavities of the two spring grooves 2 and the inner cavities of the two screw sleeves 8 are open and connected.

[0025] Furthermore, the two spring slots 2 have the same specifications and structures and are marked with the same numbers.

[0026] The benefits of providing the screw sleeve 8 are: first, it facilitates the rapid installation and removal of the two conductive components; second, it is beneficial to the overall stability of the two conductive components so that the springs at one end thereof always maintain a stable state.

[0027] See also Figure 2 The two spring slots 2 are equipped with matching cylindrical hollow terminals 10. The specifications of the terminals 10 need to be determined according to the size of the terminal block model. The upper and lower sides of the terminals 10 are both open. Three square notches are evenly arranged at the lower part of the wall of the two terminals 10. Each notch penetrates the lower side of the corresponding terminal 10. A silicone fixing ring 9 for limiting the position of the wire 17 is horizontally provided on the upper part of one side of the two terminals 10, and an inlet and outlet for the wire 17 are provided on one side of the two fixing rings 9.

[0028] A fixing ring 9 is provided on one side of the terminal 10 to stabilize one end of the wire 17 .

[0029] It should be noted that the inner diameter of the terminal 10 is equal to the diameter of the upper opening of the spring slot 2 .

[0030] The advantage of setting the fixing ring 9 is that it can constrain and limit one end of the wire 17 so that the plug 18 at one end of the wire 17 will not be withdrawn from the terminal 10 due to unintentional human touch, which is conducive to the normal performance of the electrical performance.

[0031] See also Figure 3 The two terminals 10 are respectively arranged on the upper outer edge of a spring slot 2, and a cylindrical hollow lamp cover 11 is vertically provided on the upper outer edge of the lamp slot 5. The upper and lower sides of the lamp cover 11 are both open.

[0032] The terminals 10 are provided on the upper sides of both ends of the connecting body 1 to stabilize the two conductive components so that the springs at one end thereof will not twist due to slight dragging of the wire 17 , which is beneficial to the stability and normal functioning of the circuit.

[0033] A lamp cover 11 is provided at the center of the upper side of the connecting body 1 , which is beneficial to the movable installation and stability of the lamp bead 15 .

[0034] It should be noted that the inner wall of the terminal post 10 is aligned with the inner wall of the upper opening of the spring slot 2 , and the inner cavity of the terminal post 10 is connected to the inner cavity of the spring slot 2 .

[0035] It should be noted that the inner wall of the lamp cover 11 is aligned with the inner wall of the lamp trough 5 , and the inner cavity of the lamp cover 11 is connected to the inner cavity of the lamp trough 5 .

[0036] Installation of the terminal posts 10: Align the two terminal posts 10 with the upper openings of the two spring slots 2 and fix them separately with solder glue; align the lamp cover 11 with the upper opening of the lamp slot 5 and fix them with solder glue.

[0037] After the terminal 10 is fixed by solder, it can form a whole with the connection body 1, achieving a practical balance effect through the weight of the connection body 1; secondly, it can constrain and limit the two conductive components so that the springs at one end of them will not twist due to the drag of the wire 17, thereby improving the stability of conduction.

[0038] The advantage of providing the lamp cover 11 is that it can stabilize the spring at the other end of the conductive component A12, so that the lamp bead 15 always maintains a good working condition, thereby improving the working efficiency of the electrical experiment.

[0039] See also Figure 4 One of the terminals 10 is equipped with a matching conductive component A12. The spring at one end of the conductive component A12 is a conical structure, and the spring at the other end is a cylindrical structure. The section between the conical spring and the cylindrical spring is a U-shaped connector. The spring at one end of the conductive component A12 is equipped with a matching plum screw 13. The conductive component A12 is twisted and formed as required by 0.03 cm steel wire. The conductive component A12 has good elastic potential energy.

[0040] The outer diameter of the upper section of the conical spring (the spring at one end of the conductive component A12) is equal to the inner diameter of the terminal 10, and the inclination arc of the lower part of the conical spring matches the inclination arc of the inner wall of the spring groove 2; the outer diameter of the cylindrical spring (the spring at the other end of the conductive component A12) is equal to the inner diameter of the lamp sleeve 11.

[0041] During actual installation, the upper section of the conical spring (the spring at one end of the conductive component A12) is in the corresponding lower inner cavity of the terminal 10, and the lower section of the conical spring is in the corresponding spring slot 2.

[0042] It should be noted that the diameter of the lower port of the spring at one end of the conductive component A12 is smaller than the diameter of the cap head of the screw rod 13.

[0043] It should be noted that the outer thread of the screw rod 13 matches the inner thread of the screw sleeve 8 .

[0044] Function of conductive component A12: The spring at one end of conductive component A12 is fixed in a spring slot 2 by a screw 13, and the spring at the other end of conductive component A12 is embedded in the inner cavity of the lamp sleeve 11 and contacts the guide seat 6; when the plugs 18 at one end of the two wires 17 touch a conical spring respectively, a return circuit will be formed.

[0045] In reality, the lamp cap at the bottom of the lamp bead 15 is firmly embedded in the spring at the other end of the conductive component A12, and the spring at the other end of the conductive component A12 is in contact with the guide base 6. When the plugs 18 at one end of the two wires 17 touch a conical spring respectively, the entire circuit is unblocked.

[0046] The other terminal 10 is equipped with a matching conductive component B14, and the conductive component B14 is equipped with a matching plum blossom screw 13; the outer diameter of the upper section of the spring of the conductive component B14 is equal to the inner diameter of the lower part of the other terminal 10, and the inclination arc of the lower part of the spring coincides with the inclination arc of the inner wall of the other spring groove 2, and the diameter of the lower end of the spring is smaller than the diameter of the cap head of the screw 13.

[0047] Since the other terminal 10 is connected to the guide base 6 via a connecting line (positive line), the conductive component B14 does not need to be connected to the guide base 6 in the lamp housing 11 .

[0048] In actuality, when the spring of the conductive component B14 is fixed in the corresponding spring slot 2 by the screw 13, the spring will contact the guide piece 3 on the inner wall of the spring slot 2, and the current will be conducted.

[0049] The actual situation is that the terminal 10 on the power input side should be regarded as the positive terminal, and the terminal 10 on the power output (return) side should be regarded as the negative terminal. The positive and negative lines form a complete circuit system.

[0050] Working mode of conductive component B14: When the plug 18 at one end of the positive wire 17 touches the spring of conductive component B14, the spring will be energized with the guide piece 3, and the guide piece 3 will be energized with the guide seat 6 through the connecting line.

[0051] See also Figure 5 The spring at one end of the conductive component A12 passes through the upper inner cavity of a terminal 10 and is fixed in the corresponding spring groove 2 by a screw 13. The screw 13 passes through the conical spring inner cavity and is then screwed into the corresponding screw sleeve 8. The spring at the other end of the conductive component A12 is movably arranged in the lamp sleeve 11. The middle section of the conductive component A12 is movably embedded in the limiting groove 7. A lamp bead 15 is movably provided in the spring at the other end of the conductive component A12, and the lamp head below the lamp bead 15 is embedded in the spring at the other end of the conductive component A12.

[0052] The spring of the conductive component B14 passes through the upper inner cavity of another terminal 10 from top to bottom and is then fixed in another spring slot 2 by a screw 13. The screw 13 passes through the spring inner cavity of the conductive component B14 and is then screwed into another screw sleeve 8.

[0053] It should be noted that the upper section of each conical spring is located in the lower inner cavity of the corresponding terminal 10.

[0054] It should be noted that the lamp bead 15 model should match the conductive component B14 specification.

[0055] The fact is that no form of fixation is used between the conductive component A12 and the corresponding terminal 10, no form of fixation is used between the conductive component A12 and the lamp cover 11; and no form of fixation is used between the conductive component B14 and the corresponding terminal 10.

[0056] Conductive components conduct electricity: Conductive components are made of steel wire, which is a metal material. Metal materials generally have good electrical conductivity. Therefore, there is no problem with the conductive components conducting electricity.

[0057] Because the base of the lamp bead 15 spirals downward, it can be flexibly embedded within the spring at the other end of conductive component A12. The aluminum conductive layer on the outside of the base provides excellent electrical conductivity. In actual operation, the base of the lamp bead 15 does not contact the guide base 6; instead, it contacts the spring at the other end of conductive component A12 through the conductive layer on the outside of the base, providing electrical current.

[0058] See also Figure 6 Electrical testing is one of the important physics courses in middle schools. The electrical equipment 16 is usually composed of a box and an integrated wire holder. The integrated wire holder is arranged on the lower side of the box. An ammeter, a light bulb, a voltmeter and a sliding rheostat are provided on the upper side of one side of the integrated wire holder. A certain number of terminal seats are provided in the middle part of the integrated wire holder. A main switch, an electric key and a power indicator light are provided on the upper side of the other side of the integrated wire holder. The ammeter, light bulb, voltmeter and sliding rheostat are all movably connected to the electric key by a wire 17. The electric key is fixedly connected to the main switch by a wire 17. The main switch is connected to the power supply component of the integrated wire holder by a wire 17.

[0059] The electrical equipment 16 is a relatively systematic circuit testing product. Its working range usually includes current, electric power, critical voltage, multi-domain critical voltage, bypass capacitance, multi-layer resistance and other related tests. Therefore, the ammeter, light bulb, voltmeter and sliding rheostat are all movably connected to the electric key through the wire 17.

[0060] The actual situation is that the electrical equipment 16 cannot carry out multiple functional tests at the same time, and can only be carried out one by one; for example, when testing the power of a bulb, the ammeter, voltmeter and sliding rheostat must be disconnected from the circuit connected to the switch; when the ammeter tests the current, the power supply to the bulb, voltmeter and sliding rheostat must be cut off before proceeding.

[0061] It should be noted that the ammeter is a test device for current speed and flow, the voltmeter is a test device for circuit voltage, and the sliding rheostat is a test device for circuit faults (changing resistance).

[0062] The biggest advantage of this terminal block is that: by fixing the terminal post 10 on the outer edge of the upper side of the two spring slots 2, the conical springs at one end of the two conductive components will not twist due to the drag of the wire 17, thereby improving the stability of conduction; by stabilizing one end of the wire 17 through the fixing ring 9, the plug 18 will not exit the inner cavity of the terminal post 10 due to the drag of the wire 17, thereby solving the practical problem of unstable contact between the plug 18 and the conductive component.

[0063] Operating principle: 1. Connect one end of the positive wire 17 to the positive pole of the terminal block in the electrical device 16; 2. Connect one end of the negative wire 17 to the negative pole of the terminal block in the electrical device 16; 3. Pass the plug 18 at the other end of the positive wire 17 through the fixing ring 9 on the side of the corresponding terminal 10, and then insert it into the spring of the conductive component B14; 4. Pass the plug 18 at the other end of the negative wire 17 through the fixing ring 9 on the side of another terminal 10, and then insert it into the spring of one end of the conductive component A12; 5. After the circuit is unblocked, the lamp bead 15 lights up; 6. The instrument displays the electric power of the lamp bead 15.

[0064] It should be noted that the inner diameter of the fixing ring 9 is equal to the outer diameter of the wire 17 , and one end of each of the two wires 17 is inserted into the opening on one side of the fixing ring 9 at the corresponding position.

[0065] This implementation scheme is the result of several tests on physical products, and the patent application is to effectively protect this technical solution.

Claims

1. A terminal block for electrical testing equipment, comprising a connection body, a terminal post, and a conductive component, characterized in that; Spring grooves are provided on the upper sides of both ends of the connecting body, a lamp groove is provided in the center of the upper side of the connecting body, a guide seat is provided in the lamp groove, a wire groove is provided on the upper side of one end of the connecting body, a limit groove is provided on the upper side of the other end of the connecting body, the side edges of the spring grooves on the lower sides of both ends of the connecting body are provided with screw sleeves with internal threads, the outer edges of the spring grooves on the upper sides of both ends of the connecting body are provided with terminal posts, a lamp cover is provided on the outer edge of the lamp groove on the upper side of the connecting body, the spring of one end of the conductive component A is movably provided in the lower inner cavity of a terminal, the spring of the other end of the conductive component A is movably provided in the lamp cover, a lamp bead is movably provided in the lamp cover, and the spring of the conductive component B is movably provided in the lower inner cavity of another terminal.

2. The terminal block for electrical testing equipment according to claim 1, characterized in that: A connecting line is provided in the wire trough.

3. The terminal block for electrical testing equipment according to claim 1, characterized in that A guide piece is provided on the inner wall of one side of the spring groove.

4. The terminal block for electrical testing equipment according to claim 1, characterized in that: A fixing ring for stabilizing the wire is provided on the upper part of one side of the two binding posts.

5. The terminal block for electrical testing equipment according to claim 1, characterized in that: The middle section of the conductive component A is movably arranged in the limiting groove.

Images