CN219641746U - Clamp for ferrite E-shaped magnetic core fixing coil - Google Patents

Abstract

The utility model discloses a clamp for fixing a coil of a ferrite E-shaped magnetic core, which comprises a connecting rod and a clamp block, wherein the connecting rod penetrates through the clamp block, the size of the coil fixing clamp is consistent with the size of two holes of the ferrite E-shaped magnetic core, the coil fixing clamp is made of insulating materials, a small hole is formed in the middle of the coil fixing clamp, the diameter of the hole is consistent with that of the connecting rod, the connecting rod can penetrate through the hole, and then the coil penetrates through the connecting rod.

Description

Clamp for ferrite E-shaped magnetic core fixing coil

Technical Field

The utility model relates to the field of ferrite fixing devices, in particular to a clamp for fixing a coil on an E-shaped ferrite core.

Background

Along with the development of technology, devices tend to be miniaturized more and more, in order to reduce occupation space of a ferrite core, scientists invented a common-differential mode integrated inductor, the ferrite core of the inductor is E-shaped, but when the common-mode and differential-mode inductors are tested by the E-shaped ferrite core, coils cannot be fixed, so that inductance fluctuation is large when the inductors are tested, qualified product inductance is easily caused to be detected to be unqualified, and meanwhile, the testing efficiency is also influenced.

Chinese patent document CN111152131a discloses a "clamp structure for a special-shaped ferrite core". The mounting base, a first supporting part used for supporting on one side of the special-shaped ferrite core, a second supporting part used for supporting on the other side of the special-shaped ferrite core and a pressing part used for pressing the special-shaped ferrite core are adopted, the first supporting part is rotationally connected with the mounting base, the second supporting part is rotationally connected with the mounting base, and the first supporting part and the second supporting part are symmetrically arranged on two sides of the mounting base. However, the fixture structure is only aimed at the C-type ferrite core, and cannot fix the E-type ferrite core, so that the inductance test is stably realized.

Disclosure of Invention

The utility model mainly solves the technical problem that the original clamp cannot clamp an E-shaped ferrite core, and provides a clamp for fixing a coil of the E-shaped ferrite core.

The technical problems of the utility model are mainly solved by the following technical proposal: the utility model comprises a connecting rod and a clamp block, wherein the connecting rod penetrates through the clamp block, and a hollow groove is formed in the center of the connecting rod. In order to enable the E-shaped ferrite core to finish inductance test, clamp blocks in the clamp are clamped into empty slots of the E-shaped ferrite core, connecting rods penetrate through the two clamp blocks, and finally inductance coils penetrate into the empty slots in the connecting rods, and workers clamp the connecting rods to fix the E-shaped ferrite core to finish inductance test.

Preferably, the two ends of the connecting rod are straight rods, and the middle section part of the connecting rod is an arc-shaped rod. The whole U-shaped connecting rod, the connecting rod both ends are the pole, are one section arc pole between two sections straight-bars, when connecting rod and anchor clamps piece, the staff only need link into the anchor clamps piece with straight-bar part can.

Preferably, the clamp block comprises a first clamp block and a second clamp block, a first clamp block connecting rod groove is formed in the center of the first clamp block, and a second clamp block connecting rod groove is formed in the center of the second clamp block. The center of the clamp block is provided with a connecting rod groove, the diameter size of the connecting rod groove of the first clamp block and the diameter size of the connecting rod groove of the second clamp block are matched with the cross section shape size of the connecting rod, and the connecting rod is convenient to connect and insert.

Preferably, the clamp block is placed in the first empty groove and the second empty groove in a clamping mode, the size of the clamp block is matched with the shape and the size of the first empty groove and the second empty groove, and a pressure sensor is arranged on the surface of the clamp block. When the clamp block of the clamp is clamped into the first empty groove and the second empty groove, the pressure sensor on the surface of the clamp block can detect the pressure between the clamp block and the inner walls of the first empty groove and the second empty groove, and the pressure values are respectively transmitted to the computer end, if the pressure values are larger than normal values, the computer end can remind a worker of whether the assembly between the clamp block and the E-type ferrite core is safe or not, and the situation that the inductance test data are inaccurate due to the fact that the clamp block is clamped into the empty groove and is shaken and falls off due to over-feeding is avoided, or the clamp block is clamped into the E-type ferrite core too tightly is avoided.

Preferably, the connecting rod passes through the first clamp block connecting rod slot and the second clamp block connecting rod slot. The connecting rod has both ends straight-bar, when connecting rod and anchor clamps piece, only need link into anchor clamps piece connecting rod groove with the one end straight-bar of connecting rod, the other end links into anchor clamps piece connecting rod groove No. two and can accomplish the connection of connecting rod and anchor clamps piece, and the process is simple, has improved staff's work efficiency.

Preferably, the connecting rod is further square, the connecting rod comprises three sections of straight rods, the three sections of straight rods are spliced end to end, the straight rod on one side of the connecting rod is connected with the connecting rod groove of the first clamp block, and the straight rod on the other side of the connecting rod is connected with the connecting rod groove of the second clamp block. Besides the U-shaped connecting rod, the connecting rod can be designed into a square shape, three sections of straight rods are spliced end to form a square connecting rod, two ends of the connecting rod are respectively inserted into a first clamp block connecting rod groove of a first clamp block and a second clamp block connecting rod groove of a second clamp block, and after installation is completed, workers clamp the connecting rod part protruding out of the connecting rod groove to fasten the E-shaped ferrite core to complete inductance test.

The beneficial effects of the utility model are as follows: the fixture can fasten the E-type ferrite core, and solves the problem that the inductance test fluctuation is large because the coil cannot be fixed when the E-type ferrite core tests the inductance.

Drawings

Fig. 1 is a diagram of a coil holding jig and an E-type ferrite core combination of the present utility model.

Fig. 2 is a three-view of a coil fixture block of the present utility model.

Fig. 3 is a block diagram of an E-type ferrite core of the present utility model.

In the figure, a connecting rod, a ferrite core of 2E type, a first hollow groove of 2.1, a second hollow groove of 2.2, a clamp block of 3, a clamp block of 3.1, a connecting rod groove of 4, a clamp block of 4.1, a connecting rod groove of 5, and a pressure sensor.

Detailed Description

The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings.

Examples: the clamp for the ferrite E-type magnetic core fixing coil of the embodiment comprises a connecting rod 1 and a clamp block, wherein the connecting rod 1 penetrates through the clamp block, and a hollow groove is formed in the center of the connecting rod 1, as shown in fig. 1, 2 and 3. The coil is penetrated in the empty slot, and the connecting rod 1 provides a shell for protecting the coil, so that the coil is prevented from being directly penetrated into the clamp block for many times, and the coil is prevented from being worn. The two ends of the connecting rod 1 are straight rods, and the middle section part of the connecting rod 1 is an arc-shaped rod. The connecting rod 1 passes through the first clamp block connecting rod groove 3.1 and the second clamp block connecting rod groove 4.1. The connecting rod 1 is also square, and the connecting rod 1 comprises three sections of straight rods which are spliced with each other. The fixture block comprises a fixture block 3 and a fixture block 4, a fixture block connecting rod groove 3.1 is formed in the center of the fixture block 3, and a fixture block connecting rod groove 4.1 is formed in the center of the fixture block 4. The clamp blocks are placed in the first empty groove 2.1 and the second empty groove 2.2 in a clamping mode, and the sizes of the clamp blocks are matched with the sizes of the first empty groove 2.1 and the second empty groove 2.2. The fixture is divided into two parts of a fixture block and a connecting rod 1, the ferrite E-shaped magnetic core comprises two E-shaped ferrite magnetic blocks, two empty slots with the same size are formed in the ferrite E-shaped magnetic core, one of a first empty slot 2.1 and a second empty slot 2.2 is embedded into a first fixture block 3 and a second fixture block 4, the shape and the size of the first fixture block 3 and the shape and the size of the second fixture block 4 are close to each other, rough surfaces are arranged on the surfaces of the fixture blocks, and the ferrite E-shaped magnetic core can be clamped in the empty slots after the fixture blocks are clamped in the empty slots. After the clamping, the connecting rod 1 passes through a connecting rod groove in the clamp block to clamp the clamp block, and the clamp block acts on the inner wall of the ferrite E-shaped magnetic core to realize fastening. The connecting rod 1 can be fastened by using a U-shaped connecting rod 1 or a square connecting rod.

When in operation, the device comprises: the E-shaped ferrite core 2 to be detected is selected, a first clamp block 3 is placed in a first empty groove 2.1, a second clamp block 4 is placed in a second empty groove 2.2, or the first clamp block 3 is placed in the second empty groove 2.2, the second clamp block 4 is placed in the first empty groove 2.1, after the clamp block is placed, an operator checks data transmitted by a pressure sensor (5) of the clamp block through a computer end, and if the pressure data is too small, the computer end can give a warning to remind the operator that the clamp block cannot be safely installed. After the assembly of the clamp block and the E-shaped ferrite core 2 is completed again by workers, the connecting rod 1 is inserted into the connecting rod groove of the first clamp block 3 and the connecting rod groove of the second clamp block, the magnetic induction coil is inserted into the empty groove of the connecting rod 1, and finally, the two ends of the connecting rod 1 are clamped, so that the E-shaped ferrite core can be subjected to inductance test.

Claims (6)

1. A clamp for a ferrite E-shaped core fixing coil, the clamp being connected to an E-shaped ferrite core (2), the E-shaped ferrite core (2) comprising a first void (2.1) and a second void (2.2), characterized by comprising a tie bar (1) and a clamp block, the tie bar (1) passing through the clamp block, the tie bar (1) being provided with a void in its centre.

2. The fixture for fixing the coil of the ferrite E-shaped magnetic core according to claim 1, wherein the two ends of the connecting rod (1) are straight rods, and the middle section part of the connecting rod (1) is an arc-shaped rod.

3. A clamp for ferrite E-type core fixing coils according to claim 1, characterized in that the clamp block comprises a clamp block No. 3 and a clamp block No. two (4), the clamp block No. 3 is centrally provided with a clamp block connecting rod slot No. 3.1, and the clamp block No. two (4) is centrally provided with a clamp block No. two connecting rod slots (4.1).

4. A clamp for a ferrite E-type core fixing coil according to claim 1, characterized in that the clamp block is placed and clamped into the first empty slot (2.1) and the second empty slot (2.2), the clamp block size is adapted to the shape size of the first empty slot (2.1) and the second empty slot (2.2), and the clamp block surface is provided with a pressure sensor (5).

5. A clamp for a ferrite E-type core fixing coil according to claim 3, characterized in that the tie rod (1) is connected to a clamp block tie rod slot (3.1) and a clamp block tie rod slot (4.1).

6. A clamp for ferrite E-type core fixing coils according to claim 3, characterized in that the connecting rod (1) is also square, the connecting rod (1) comprises three sections of straight rods, the three sections of straight rods are spliced end to end, one side of the connecting rod (1) is connected with the connecting rod groove (3.1) of the first clamp block (3), and the other side of the connecting rod is connected with the connecting rod groove (4.1) of the second clamp block (4).