Fluxgate sensor fixing structure convenient to install

Abstract

The utility model belongs to the technical field of current sensor installation structures, and particularly relates to a fluxgate sensor fixing structure convenient to install, which comprises a shell, a fixing frame A, a fixing frame B, a fixing frame C and an overcurrent needle, the fixing frame A and the fixing frame B are arranged on the upper side face and the lower side face of the shell respectively, fixing grooves are formed in the lower side face of the fixing frame A and the upper side face of the fixing frame B, the upper portion and the lower portion of the overflowing needle are clamped in the fixing grooves respectively, the fixing frame A and the fixing frame B are connected in a clamped mode, and the fixing frame C is connected with the fixing frame A and the fixing frame B in a clamped mode. Through cooperation of the fixing frame A, the fixing frame B and the fixing frame C, the overflowing needle penetrates through the shell and is fixed through the fixing groove at the same time, and the overflowing needle and the shell are fixed into a whole through the fixing frame A, the fixing frame B and the fixing frame C which are connected in a clamped mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of current sensor installation structures, in particular to a fluxgate sensor fixing structure which is easy to install. Background Art

[0002] The fluxgate sensor is a device used to measure weak magnetic fields by using the nonlinear relationship between magnetic induction intensity and magnetic field intensity. It is a sensor that measures weak magnetic fields by using the nonlinear relationship between the magnetic induction intensity and magnetic field intensity of a high permeability core in a magnetic field under saturation excitation of an alternating magnetic field. The working principle of the fluxgate sensor is similar to the measurement principle of a current sensor based on the Hall effect.

[0003] For example, the main structure of a programmable Hall current sensor disclosed in the utility model patent with patent announcement number CN220105140U is adopted, which has a housing cavity for accommodating a programmable Hall element. The main structure of the programmable Hall current sensor includes an upper cover and a plurality of pins, one end of each of the pins is connected to the above-mentioned programmable Hall element, and the other end of each of the pins is plugged into the upper cover, so that the upper cover completely or partially covers the above-mentioned housing cavity. When installing the Hall current sensor, it is necessary to manually install the sensor body in the housing cavity. Manual installation is prone to cause the pins to tilt, the accuracy is not high, and sometimes glue is needed for fixing. The steps are cumbersome and the pins are deflected during the process of closing the upper cover, thereby reducing the yield rate. Therefore, a fluxgate sensor fixing structure that is easy to install, improves the yield rate and production efficiency is needed. Utility Model Content

[0004] In view of the above problems, the utility model proposes a fluxgate sensor fixing structure that is easy to install, which well solves the problems of inconvenient installation and low production efficiency in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows: a magnetic fluxgate sensor fixing structure that is easy to install, including a shell, a fixing frame A, a fixing frame B, a fixing frame C and a flow needle, the shell is provided with a flow hole, the flow needle passes through the flow hole, the fixing frame A and the fixing frame B are respectively arranged on the upper side and the lower side of the shell, the lower side of the fixing frame A and the upper side of the fixing frame B are provided with a fixing groove, the upper and lower parts of the flow needle are respectively clamped in the fixing groove, the fixing frame A and the fixing frame B are clamped, the fixing frame C is clamped with the fixing frame A and the fixing frame B, the fixing frame A, the fixing frame B and the fixing frame C cooperate, the flow needle passes through the shell, and the flow needle is fixed through the fixing groove, and the fixing frame A, the fixing frame B and the fixing frame C that are clamped with each other are fixed to the shell as a whole.

[0006] Furthermore, the clearance between the fixing groove and the current needle is 0.1 mm.

[0007] Furthermore, the flow needle includes a U-shaped flow needle and two L-shaped flow needles located on both sides of the U-shaped flow needle. The L-shaped flow needle can arrange the pins of six flow needles while passing through the flow hole.

[0008] Furthermore, a bayonet foot is provided at the edge of the fixing frame A, a bayonet is provided on the bayonet foot, a buckle foot corresponding to the bayonet foot is provided on the edge of the fixing frame B, a buckle is provided on the buckle foot, and the buckle is correspondingly engaged with the bayonet, and a quick engagement is formed by the cooperation of the buckle foot and the bayonet foot.

[0009] Furthermore, the front sides of the fixing frame A and the fixing frame B are provided with connecting slots, and the fixing frame C is provided with connecting pins corresponding to the connecting slots. The connecting pins are inserted into the connecting slots for connection, and a quick connection installation is formed by inserting the connecting pins into the connecting slots.

[0010] Furthermore, a pin pin is disposed on the front side of the shell, and a pin hole corresponding to the pin pin is opened on the fixing frame C, and the pin pin is inserted into the pin hole.

[0011] Furthermore, a positioning card is provided on the lower side of the fixing frame A, and the positioning card is passed through the flow hole. The positioning card passes through the flow hole to facilitate the positioning and installation of the fixing frame A and the fixing frame B.

[0012] Furthermore, a positioning slot cooperating with the positioning card is provided on the upper side of the fixing frame B, and the positioning card is engaged in the positioning slot. The positioning slot cooperates with the positioning card to make the installation more accurate.

[0013] Furthermore, the positioning card includes a positioning column and three card boards arranged around the positioning column, the positioning card slot includes a positioning socket and card board slots arranged around the positioning socket, the positioning column is inserted in the positioning socket, and the card board is inserted in the card board slot.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model cooperates with the fixing frame A, the fixing frame B and the fixing frame C so that the flow needle passes through the shell and is fixed by the fixing groove. The fixing frame A, the fixing frame B and the fixing frame C are mutually clamped so that the fixing frame A, the fixing frame B and the fixing frame C are fixed to the shell as a whole. The structure is easy and fast to install and can effectively position and install the flow needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of the disassembled structure of the utility model;

[0017] Figure 2 It is a stereogram of the fixing frame A and the fixing frame B;

[0018] Figure 3 This is a three-dimensional diagram of the assembly of the utility model.

[0019] In the figure: 1. shell; 2. fixing frame A; 21. bayonet foot; 22. buckle foot; 3. fixing frame B; 4. fixing frame C; 5. current needle; 51. U-shaped current needle; 52. L-shaped current needle; 6. current hole; 7. fixing slot; 8. connecting slot; 9. connecting foot; 10. pin pin; 11. pin hole; 12. positioning card; 121. positioning column; 122. card plate; 13. positioning slot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-Figure 3 As shown, a fluxgate sensor fixing structure that is easy to install includes a shell 1, a fixing frame A2, a fixing frame B3, a fixing frame C4 and a flow needle 5. The shell 1 is provided with a circular flow hole 6, and the flow hole 6 penetrates the upper side and the lower side of the shell 1. The flow needle 5 passes through the flow hole 6, and the two pins of the flow needle 5 face the front side of the shell 1. The fixing frame A2 and the fixing frame B3 are respectively arranged on the upper side and the lower side of the shell 1, and the lower side of the fixing frame A2 and the upper side of the fixing frame B3 are provided with a fixing groove 7. The upper and lower parts of the flow needle 5 are respectively clamped in the fixing groove 7, the fixing frame A2 and the fixing frame B3 are clamped, and the fixing frame C4 is clamped with the fixing frames A2 and B3.

[0022] In this embodiment, the clearance between the fixing groove 7 and the current needle 5 is 0.1 mm.

[0023] In this embodiment, the current needle 5 includes a U-shaped current needle 51 and two L-shaped current needles 52 located on both sides of the U-shaped current needle 51. The L-shaped short side of the L-shaped current needle 52 is arranged relative to the U-shaped current needle 51, and the shape of the fixing groove 7 for fixing the L-shaped current needle 52 is matched with the L-shaped current needle 52.

[0024] In this embodiment, four bayonet feet 21 are integrally connected to the edge of the fixing frame A2, and the four bayonet feet 21 surround and fit the outer side surface of the shell. A bayonet is provided on the bayonet foot 21, and a buckle is integrally connected to the edge of the fixing frame B3 with a buckle foot 22 corresponding to the bayonet foot 21, and a buckle is provided on the buckle foot 22, and the buckle is correspondingly engaged with the bayonet.

[0025] In this embodiment, the front sides of the fixing frame A2 and the fixing frame B3 are provided with connecting slots 8, and the fixing frame C4 is provided with connecting pins 9 corresponding to the connecting slots 8, and the connecting pins 9 are inserted into the connecting slots 8 for connection.

[0026] In this embodiment, a pin pin 10 is disposed on the front side of the housing 1 , and a pin hole 11 corresponding to the pin pin 10 is opened on the fixing frame C4 , and the pin pin 10 is inserted into the pin hole 11 .

[0027] In this embodiment, a positioning clamp 12 is integrally connected to the lower side of the fixing frame A2 , and the positioning clamp 12 is inserted into the flow hole 6 .

[0028] In this embodiment, a positioning slot 13 cooperating with the positioning fixture 12 is integrally connected to the upper side surface of the fixing frame B3 , and the positioning fixture 12 is engaged in the positioning slot 13 .

[0029] In this embodiment, the positioning card 12 includes a positioning column 121 and three card boards 122 arranged around the positioning column 121, and the positioning card slot 13 includes a positioning hole and card board slots arranged around the positioning hole. The positioning column 121 is inserted into the positioning hole, and the card board 122 is inserted into the card board slots.

[0030] During production of the utility model, the U-shaped over-current needle 51 and the L-shaped over-current needle 52 are passed through the over-current hole 6 opened on the shell 1, and the pins of the over-current needle 5 are arranged in one direction, the fixing frame B3 is placed on the lower side of the shell 1 and the positioning slot 13 is aligned with the over-current hole 6, the over-current needles 5 are respectively correspondingly clamped in the fixing slots 7, and the positioning clamp 12 on the lower side of the fixing frame A2 is passed through the over-current hole 6 and clamped in the positioning slot 13. At this time, the buckle legs 22 set on the edges of the fixing frames A2 and the fixing frames B3 are clamped with the buckle legs 22, the pinhole 11 on the fixing frame C4 is aligned with the pin needle 10, the pin needle 10 passes through the pinhole 11, the connecting pin 9 is inserted into the connecting slot 8 and clamped to complete the assembly.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fluxgate sensor fixing structure that is easy to install, characterized in that: It includes a shell, a fixing frame A, a fixing frame B, a fixing frame C and a flow needle. The shell is provided with a flow hole, and the flow needle passes through the flow hole. The fixing frame A and the fixing frame B are respectively arranged on the upper side and the lower side of the shell. The lower side of the fixing frame A and the upper side of the fixing frame B are provided with a fixing groove. The upper part and the lower part of the flow needle are respectively clamped in the fixing groove. The fixing frame A and the fixing frame B are clamped, and the fixing frame C is clamped with the fixing frame A and the fixing frame B.

2. The easy-to-install fluxgate sensor fixing structure according to claim 1 is characterized in that: The matching clearance between the fixing groove and the flow needle is 0.1 mm.

3. The easy-to-install fluxgate sensor fixing structure according to claim 1 is characterized in that: The overflow needle comprises a U-shaped overflow needle and two L-shaped overflow needles located on both sides of the U-shaped overflow needle.

4. The easy-to-install fluxgate sensor fixing structure according to claim 1 is characterized in that: The edge of the fixing frame A is provided with a bayonet support foot, and the bayonet support foot is provided with a bayonet. The edge of the fixing frame B is provided with a buckle support foot corresponding to the bayonet support foot, and the buckle support foot is provided with a buckle, and the buckle is correspondingly engaged with the bayonet.

5. The easy-to-install fluxgate sensor fixing structure according to claim 1, characterized in that: The front sides of the fixing frame A and the fixing frame B are provided with connecting card slots, and the fixing frame C is provided with connecting card pins corresponding to the connecting card slots, and the connecting card pins are inserted into the connecting card slots for card connection.

6. The easy-to-install fluxgate sensor fixing structure according to claim 1, characterized in that: The front side of the housing is provided with a pin pin, and the fixing frame C is provided with a pin hole corresponding to the pin pin, and the pin pin is inserted into the pin hole.

7. The easy-to-install fluxgate sensor fixing structure according to claim 1 is characterized in that: A positioning fixture is disposed on the lower side of the fixing frame A, and the positioning fixture is inserted into the flow hole.

8. The easy-to-install fluxgate sensor fixing structure according to claim 7, characterized in that: The upper side surface of the fixing frame B is provided with a positioning slot that cooperates with the positioning card member, and the positioning card member is snapped into the positioning slot.

9. The easy-to-install fluxgate sensor fixing structure according to claim 8, characterized in that: The positioning card comprises a positioning column and three card boards arranged around the positioning column, the positioning card slot comprises a positioning socket and card board slots arranged around the positioning socket, the positioning column is inserted in the positioning socket, and the card board is inserted in the card board slot.

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