Test fixture for inductance coil

Abstract

The utility model provides a test fixture for an inductance coil, comprising an insulation ring feeding structure, the insulation ring feeding structure comprises a guide shaft, an auxiliary groove is arranged in the guide shaft, the top and the bottom of the auxiliary groove are rotatably connected with rollers, the middle of the guide shaft is rotatably connected with a rotating ring, the outer wall of the rotating ring is provided with a reset spring, and the reset spring is provided with a reset spring. And a fitting ring is arranged at one end of the reset spring. According to the utility model, the insulation ring feeding structure can sequentially drive the inductance coil to move forwards, so that the inductance coil enters the space between the two insulation ring fixing structures, the motor is started according to the position of the port of the inductance coil, and the motor drives the rotating ring to rotate through the gear and the gear ring, so that the rotating ring can drive the port of the inductance coil to face downwards.

Description

Technical Field

[0001] The utility model belongs to the technical field of inductance coils, and particularly relates to a test fixture for inductance coils. Background Art

[0002] A coil is formed by winding a wire around an insulating ring one turn by one turn, and the wires are insulated from each other. The insulating tube can be hollow or can contain an iron core or a magnetic powder core.

[0003] An inductance coil is a device that works based on the principle of electromagnetic induction. When an electric current flows through a wire, a certain electromagnetic field will be generated around this wire, and the wire itself of this electromagnetic field will in turn have an inductive effect on the wires within the range of this electromagnetic field. The effect on the wire itself that generates the electromagnetic field is called "self-inductance", that is, the changing current generated by the wire itself generates a changing magnetic field, and this magnetic field further affects the current in the wire; the effect on other wires within the range of this electromagnetic field is called "mutual inductance".

[0004] After the inductance coil is produced, it is necessary to use a test fixture to detect the inductance of the inductance coil. However, each time the test fixture is replaced, it is necessary to manually open and close the test fixture to disassemble and assemble the inductance coil, resulting in a waste of time when installing and testing the inductance coil with the test fixture. Summary of the Utility Model

[0005] Object of the Utility Model

[0006] In view of the above technical problems, the utility model provides a test fixture for inductance coils to solve the technical problems mentioned in the background art.

[0007] Technical Solution

[0008] To achieve the above object, the technical solution provided by the utility model is a test fixture for inductance coils, including a bottom plate. On both sides of the top of the bottom plate, there are mounting plates. Connection holes are opened inside the mounting plates. An insulating ring fixing structure is slidably connected inside the connection holes. The number of the insulating ring fixing structures is set to two, and the two insulating ring fixing structures are symmetrically distributed on both sides of the horizontal center line of the bottom plate. An insulating ring feeding structure is arranged between the two insulating ring fixing structures.

[0009] The insulating ring feeding structure includes a guiding shaft. An auxiliary groove is opened inside the guiding shaft. Rollers are rotatably connected to the top and bottom of the auxiliary groove. A rotating ring is rotatably connected to the middle of the guiding shaft. A return spring is arranged on the outer wall of the rotating ring, and one end of the return spring is provided with a fitting ring.

[0010] Preferably, a transmission lead screw is rotatably connected to the bottom of the base plate. A guiding groove is formed in the middle of the top of the base plate. Support rods are arranged on both sides of the outer wall of the base plate, and a support shaft is arranged at one end of each support rod.

[0011] Preferably, clamping grooves are formed at the bottoms of both ends of the guiding shaft, and the inner walls of the clamping grooves are attached to the outer walls of the support shafts.

[0012] Preferably, a plurality of fitting rings are provided. The plurality of fitting rings are annularly arrayed on the outer wall of the rotating ring, and both sides of each fitting ring are inclined.

[0013] Preferably, the insulating ring fixing structure includes a moving block. A fitting hole is formed at the bottom of the moving block, and the fitting hole cooperates with the transmission lead screw. The moving block is slidably connected to the guiding groove. A conductive column is arranged on one side of the top of the moving block, and a support plate is arranged on the other side of the top of the moving block.

[0014] Preferably, a pushing shaft is arranged on the top of the support plate. The pushing shaft is slidably connected to the connecting hole, and an auxiliary ring is arranged at one end of the pushing shaft.

[0015] Beneficial effects

[0016] The technical solution provided by the present utility model has the following beneficial effects compared with the prior art:

[0017] By means of the insulating ring feeding structure provided by the present utility model, the inductance coil can be driven to move forward in sequence, so that the inductance coil enters between two insulating ring fixing structures. According to the position of the port of the inductance coil, the motor is started. The motor drives the rotating ring to rotate through the gear and the toothed ring, so that the rotating ring can drive the port of the inductance coil downward;

[0018] After the inductance coil is moved between two insulating ring fixing structures, the insulating ring fixing structures move inward, so that the insulating ring fixing structures are attached to the inductance coil to fix the inductance coil. At the same time, the conductive columns are attached to the inductance coil, so that the inductance coil is conducted. The multimeter is electrically connected to the conductive columns, so that the inductance value in the inductance coil can be detected. Description of the drawings

[0019] Figure 1 is a three-dimensional view of the present utility model;

[0020] Figure 2 is a three-dimensional view of the base plate of the present utility model;

[0021] Figure 3 is a three-dimensional sectional view of the insulating ring feeding structure of the present utility model;

[0022] Figure 4 is a three-dimensional view of the insulating ring fixing structure of the present utility model.

[0023] Reference Signs

[0024] 1. Bottom plate; 2. Transmission lead screw; 3. Guide groove; 4. Mounting plate; 5. Connecting hole; 6. Support rod; 7. Support shaft; 8. Insulating ring feeding structure; 801. Guide shaft; 802. Card slot; 803. Auxiliary groove; 804. Roller; 805. Rotating ring; 806. Return spring; 807. Fitting ring; 9. Insulating ring fixing structure; 901. Moving block; 902. Matching hole; 903. Conductive column; 904. Support plate; 905. Pushing shaft; 906. Auxiliary ring. Detailed Embodiment

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", "coaxial", "bottom", "one end", "top", "the other end", "one side", "front part", "both ends", "both sides", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", "provided with", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Referring now to the accompanying drawings, wherein the purpose of each figure is only to show certain exemplary embodiments and is not intended to limit the present invention. In each drawing, the same reference numerals denote the same or corresponding parts. The dimensions and ratios in each drawing are also for illustrative purposes only and should not be construed as limiting the present invention, as these dimensions may be enlarged relative to the actual product.

[0029] Referring to Figures 1-4 , a test fixture for an inductance coil is shown, which includes a bottom plate 1. On both sides of the top of the bottom plate 1, mounting plates 4 are provided. A connection hole 5 is formed inside the mounting plate 4. An insulating ring fixing structure 9 is slidably connected inside the connection hole 5. The number of the insulating ring fixing structures 9 is set to two, and the two insulating ring fixing structures 9 are symmetrically distributed on both sides of the horizontal center line of the bottom plate 1. An insulating ring feeding structure 8 is provided between the two insulating ring fixing structures 9.

[0030] The insulating ring feeding structure 8 includes a guide shaft 801. An auxiliary groove 803 is formed inside the guide shaft 801. Rollers 804 are rotatably connected to the top and bottom of the auxiliary groove 803. A rotating ring 805 is rotatably connected to the middle of the guide shaft 801. A return spring 806 is provided on the outer wall of the rotating ring 805. One end of the return spring 806 is provided with a fitting ring 807.

[0031] Further, in the above technical solution, a transmission lead screw 2 is rotatably connected to the bottom of the bottom plate 1. A guide groove 3 is formed in the middle of the top of the bottom plate 1. Support rods 6 are provided on both sides of the outer wall of the bottom plate 1. One end of the support rod 6 is provided with a support shaft 7.

[0032] Further, in the above technical solution, clamping grooves 802 are formed at the bottoms of both ends of the guide shaft 801. The inner wall of the clamping groove 802 is in contact with the outer wall of the support shaft 7. The number of the fitting rings 807 is set to be multiple, and the multiple fitting rings 807 are annularly arranged on the outer wall of the rotating ring 805. Both sides of the fitting ring 807 are inclined. The inductance coil to be tested is placed on the outer wall of the guide shaft 801, and the roller 804 is in contact with the inner wall of the inductance coil. The motor is started, and the motor drives the roller 804 to rotate. The roller 804 drives the inductance coil to move forward and enter between the two insulating ring fixing structures 9.

[0033] Furthermore, in the above technical solution, the insulating ring fixing structure 9 includes a moving block 901. A fitting hole 902 is formed at the bottom of the moving block 901. The fitting hole 902 cooperates with the transmission lead screw 2. The moving block 901 is slidably connected to the guiding groove 3. A conductive column 903 is arranged on one side of the top of the moving block 901. A support plate 904 is arranged on the other side of the top of the moving block 901. A pushing shaft 905 is arranged on the top of the support plate 904. The pushing shaft 905 is slidably connected to the connecting hole 5. An auxiliary ring 906 is arranged at one end of the pushing shaft 905. The conductive column 903 is electrically connected to a multimeter for detecting the inductance of the inductor coil. When the moving block 901 moves inward, the moving block 901 drives the auxiliary ring 906 to fit against the outer wall of the inductor coil through the pushing shaft 905 to clamp the inductor coil.

[0034] The working principle of this utility model:

[0035] Refer to the attached drawings of the specification Figures 1-4 , first, when it is necessary to fix and detect the inductor coil through the test fixture, the inductor coil is placed on the outer wall of the guiding shaft 801. Then, the roller 804 at the bottom of the guiding shaft 801 is fitted against the support shaft 7 to fix the insulating ring feeding structure 8. The motor is started. The motor drives the roller 804 to rotate. The roller 804 drives the inductor coil to move forward and fit against the fitting ring 807. A toothed ring is arranged inside the fitting ring 807. A gear is arranged inside the guiding shaft 801. The gear meshes with the toothed ring. The motor is started. The motor drives the fitting ring 807 to rotate through the gear and the toothed ring. The fitting ring 807 drives the inductor coil to rotate, making the interface end of the inductor coil face downward;

[0036] The motor is started. The motor drives the transmission lead screw 2 to rotate. The transmission lead screw 2 drives the guiding shaft 801 to move inward, causing the guiding shaft 801 to drive the rotating ring 805 to move inward. The rotating ring 805 drives the reset spring 806 to fit against the outer wall of the inductor coil. At the same time, the guiding shaft 801 drives the auxiliary groove 803 to fit against the interface end of the inductor coil. The inductance of the inductor coil is tested through the multimeter.

[0037] The above embodiments only represent a certain implementation manner of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model should be subject to the appended claims.

Claims

1. A test fixture for an inductance coil, characterized in that including a bottom plate (1), on both sides of the top of the bottom plate (1) are provided with mounting plates (4), inside the mounting plates (4) are opened with connecting holes (5), inside the connecting holes (5) are slidably connected with insulating ring fixing structures (9), the number of the insulating ring fixing structures (9) is set to two, the two insulating ring fixing structures (9) are symmetrically distributed on both sides of the horizontal center line of the bottom plate (1), and between the two insulating ring fixing structures (9) is provided with an insulating ring feeding structure (8); the insulating ring feeding structure (8), which includes a guiding shaft (801), inside the guiding shaft (801) is opened with an auxiliary groove (803), at the top and bottom of the auxiliary groove (803) are rotatably connected with rollers (804), in the middle of the guiding shaft (801) is rotatably connected with a rotating ring (805), on the outer wall of the rotating ring (805) is provided with a return spring (806), and at one end of the return spring (806) is provided with a fitting ring (807).

2. The test fixture for an inductance coil according to claim 1, wherein: at the bottom of the bottom plate (1) is rotatably connected with a transmission lead screw (2), in the middle of the top of the bottom plate (1) is opened with a guiding groove (3), on both sides of the outer wall of the bottom plate (1) are provided with support rods (6), and at one end of the support rods (6) is provided with a support shaft (7).

3. The test fixture for an inductance coil according to claim 1, wherein: at the bottom of both ends of the guiding shaft (801) are opened with clamping grooves (802), and the inner wall of the clamping grooves (802) is in fit with the outer wall of the support shaft (7).

4. The test fixture for an inductance coil according to claim 1, wherein: the number of the fitting rings (807) is set to a plurality, the plurality of fitting rings (807) are annularly arrayed on the outer wall of the rotating ring (805), and both sides of the fitting ring (807) are inclined.

5. The test fixture for an inductance coil according to claim 1, wherein: the insulating ring fixing structure (9), which includes a moving block (901), at the bottom of the moving block (901) is opened with a mating hole (902), the mating hole (902) is in cooperation with the transmission lead screw (2), the moving block (901) is slidably connected with the guiding groove (3), on one side of the top of the moving block (901) is provided with a conductive column (903), and on the other side of the top of the moving block (901) is provided with a support plate (904).

6. The test fixture for an inductance coil according to claim 5, characterized in that: at the top of the support plate (904) is provided with a pushing shaft (905), the pushing shaft (905) is slidably connected with the connecting hole (5), and at one end of the pushing shaft (905) is provided with an auxiliary ring (906).

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