CN205301350U - Speed and direction sensor - Google Patents

Abstract

The utility model discloses a speed and direction sensor, the sensor includes: shell, magnet, two chips, two printed circuit board PCB, two PIN needles, sensor cable, through support fixed magnets, two chips, two printed circuit board PCB, two PIN needles, sensor cable in the shell, through the intercommunication of PIN needle between two printed circuit board PCB. The utility model provides a speed and direction sensor can effectively reduce the shaping degree of difficulty, reduces manufacturing cost, carries high yield. The utility model discloses improve mechanical structure, removed IC's complicated shaping molding for IC's shaping becomes simple easy, and the risk is low, and the cost is controllable.

Description

Speed and direction sensor

Technical field

This utility model belongs to sensor technical field, relates to a kind of velocity sensor, particularly relates to a kind of speed and direction sensor.

Background technology

At present, velocity sensor has two kinds of mainstay: the first scheme is with two independent hall sensing chips, is equipped with one piece of circuit board and builds process circuit. The program due to the restriction of structure, Hall pin forming complex (needing bending forming 3 times), and have that Hall is internal because pin forming stress causes the risk lost efficacy, it has not been convenient to batch production; As shown in Figure 1 and Figure 2.

First scheme is directly to contact IC manufacturer, the special internal IC with two panels die package of customization. The program needs substantial amounts of input, and the encapsulation that new structure is new needs substantial amounts of test, and IC manufacturer misaligns little company and provides customization, and threshold is higher.

In view of this, nowadays in the urgent need to designing a kind of new velocity sensor, in order to overcome the drawbacks described above that existing velocity sensor exists.

Utility model content

Technical problem to be solved in the utility model is: provides a kind of speed and direction sensor, can effectively lower molding difficulty, reduce manufacturing cost, improves yield rate.

For solving above-mentioned technical problem, this utility model adopts the following technical scheme that

A kind of speed and direction sensor, described sensor includes: cabinet, Magnet, two panels chip, two panels printing board PCB, two PIN needle, sensor cables;

By plastic stent fixed magnet, two panels chip, two panels printing board PCB, two PIN needle, sensor cables in described cabinet; By PIN needle intercommunication between two panels printing board PCB;

Chip pin is welded on outside printing board PCB; Protection circuit components is arranged in inside printed circuit board (PCB); In below sensor wire crust, all devices are all potted in by epoxy glue;

Sensor cable is 4 heart yearns, respectively power line, earth lead, the first holding wire and secondary signal line; The a piece of PCB source of welding current and the first holding wire, another sheet PCB welds earth lead and secondary signal line.

A kind of speed and direction sensor, described sensor includes: shell, Magnet, two panels chip, two panels printing board PCB, two PIN needle, sensor cables;

By support fixed magnet, two panels chip, two panels printing board PCB, two PIN needle, sensor cables in described shell;By PIN needle intercommunication between two panels printing board PCB.

As a kind of preferred version of the present utility model, chip pin is welded on outside printed circuit board (PCB); Protection circuit components is arranged in inside printed circuit board (PCB).

As a kind of preferred version of the present utility model, by PIN needle intercommunication between two panels printing board PCB, share power supply and earth lead.

As a kind of preferred version of the present utility model, two panels chip is respectively welded on respective printing board PCB plate.

As a kind of preferred version of the present utility model, in below the cable sheath of described sensor, all devices are all potted in by epoxy glue.

As a kind of preferred version of the present utility model, described shell is cabinet.

As a kind of preferred version of the present utility model, described support is plastic stent.

The beneficial effects of the utility model are in that: the speed that the utility model proposes and direction sensor, can effectively lower molding difficulty, and reduce manufacturing cost, improve yield rate.

This utility model improves frame for movement, eliminates the complicated molding moulding of IC so that the molding of IC becomes simple easy, and risk is low, and cost is controlled.

Accompanying drawing explanation

Fig. 1 is the structural representation of existing a kind of velocity sensor.

Fig. 2 is the structural representation of existing another kind of velocity sensor.

Fig. 3 is circuit theory diagrams of the present utility model.

Fig. 4 is the structural map of first embodiment of sensor.

Fig. 5 is the plastic stent axonometric drawing of first embodiment of sensor.

Fig. 6 is another plastic stent axonometric drawing of first embodiment of sensor.

Detailed description of the invention

Preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.

Embodiment one

This utility model discloses a kind of speed and direction sensor, and described sensor includes: cabinet, Magnet, two panels chip, two panels printing board PCB, two PIN needle, sensor cables. By plastic stent fixed magnet, two panels chip (H1, H2), two panels printing board PCB, two PIN needle, sensor cables in described cabinet, and by epoxy glue by all device embeddings.

By the interconnection of two panels printing board PCB and PIN needle, make after by two panels chip molding, to complete Magnet, carry on the back magnetic, process circuit, the layout that cable connects.

Chip pin is welded on outside printed circuit board (PCB); Protection circuit components is arranged in inside printed circuit board (PCB); In below sensor wire crust, all devices are all potted in by epoxy glue.

In figure 3, function is undertaken by a piece of PCB respectively above and below dotted line. The output of the PCB welding chip H1 of top and earth lead, the output of the PCB welding chip H2 of lower section and power line.

In the diagram, sensor cable is 4 heart yearns, respectively power line, earth lead, the first holding wire and secondary signal line. One total two panels PCB, a piece of PCB source of welding current and the first holding wire, another sheet PCB welds earth lead and secondary signal line. By PIN needle intercommunication between two panels PCB, share power supply and earth lead. Two panels chip is respectively welded on respective pcb board. Two panels chip has only to molding once.

In Fig. 5, Fig. 6, by the structural design of plastic stent so that PCB and chip can both obtain good fixing. During epoxy glue embedding, glue can fill internal air gap along runner, reaches good embedding effect.

Embodiment two

A kind of speed and direction sensor, described sensor includes: shell, two panels chip, Magnet, two panels printed circuit board (PCB), two PIN needle, sensor cable;

By the fixing two panels chip of support in described shell, Magnet, two panels printed circuit board (PCB), two PIN needle, sensor cable, and by epoxy glue by all device embeddings;

By the interconnection of two panels PCB and PIN needle, make after by two panels chip molding, to complete Magnet, carry on the back magnetic, process circuit, the layout that cable connects.

In sum, the speed that the utility model proposes and direction sensor, can effectively lower molding difficulty, reduce manufacturing cost, improve yield rate. This utility model improves frame for movement, eliminates the complicated molding moulding of IC so that the molding of IC becomes simple easy, and risk is low, and cost is controlled.

Here description of the present utility model and application is illustrative, is not wishing to limit in the above-described embodiments scope of the present utility model. The deformation of embodiments disclosed herein and change are possible, for those skilled in the art embodiment replace and the various parts of equivalence are known. It should be appreciated by the person skilled in the art that when without departing from spirit of the present utility model or substitutive characteristics, this utility model can in other forms, structure, layout, ratio, and realize with other assembly, material and parts. When without departing from this utility model scope and spirit, it is possible to embodiments disclosed herein is carried out other deformation and changes.

Claims (8)

1. a speed and direction sensor, it is characterised in that described sensor includes: cabinet, Magnet, two panels chip, two panels printing board PCB, two PIN needle, sensor cables;

By plastic stent fixed magnet, two panels chip, two panels printing board PCB, two PIN needle, sensor cables in described cabinet; By PIN needle intercommunication between two panels printing board PCB;

Chip pin is welded on outside printing board PCB; Protection circuit components is arranged in inside printed circuit board (PCB); In below sensor wire crust, all devices are all potted in by epoxy glue;

Sensor cable is 4 heart yearns, respectively power line, earth lead, the first holding wire and secondary signal line; The a piece of PCB source of welding current and the first holding wire, another sheet PCB welds earth lead and secondary signal line.

2. a speed and direction sensor, it is characterised in that described sensor includes: shell, Magnet, two panels chip, two panels printing board PCB, two PIN needle, sensor cables;

By support fixed magnet, two panels chip, two panels printing board PCB, two PIN needle, sensor cables in described shell; By PIN needle intercommunication between two panels printing board PCB.

3. speed according to claim 2 and direction sensor, it is characterised in that:

Chip pin is welded on outside printed circuit board (PCB); Protection circuit components is arranged in inside printed circuit board (PCB).

4. speed according to claim 2 and direction sensor, it is characterised in that:

By PIN needle intercommunication between two panels printing board PCB, share power supply and earth lead.

5. speed according to claim 2 and direction sensor, it is characterised in that:

Two panels chip is respectively welded on respective printing board PCB plate.

6. speed according to claim 2 and direction sensor, it is characterised in that:

In below the cable sheath of described sensor, all devices are all potted in by epoxy glue.

7. speed according to claim 2 and direction sensor, it is characterised in that:

Described shell is cabinet.

8. speed according to claim 2 and direction sensor, it is characterised in that:

Described support is plastic stent.