CN115219943A - Direction detection device and electrical equipment - Google Patents

Abstract

The invention is suitable for the technical field of electrical equipment, and provides a direction detection device and electrical equipment, wherein the direction detection device is characterized by comprising a direction detection circuit, a direction detection circuit and a direction detection circuit, wherein the direction detection circuit is used for detecting the current placement direction and outputting a current direction parameter corresponding to the current placement direction; the controller is electrically connected with the direction detection circuit and is used for comparing the current direction parameter with a prestored direction parameter, judging whether the current placing direction is abnormal or not and outputting an alarm instruction when the current placing direction is judged to be abnormal; and the warning device is electrically connected with the controller and is used for executing the warning command and sending out a warning signal indicating that the current placing direction is abnormal. The device can achieve the effect that the same direction detection device can adapt to models with different installation modes, and can adapt to the effect of multiple different installation modes of one electrical appliance.

Description

Direction detection device and electrical equipment

Technical Field

The invention belongs to the technical field of electrical equipment, and particularly relates to a direction detection device and electrical equipment.

Background

Some electrical appliances need to be installed in a designated placement direction due to internal components, or damage to the internal components may be caused. For example, if a water purifier having a heating inner container is installed upright in a designated installation direction, if an installer or a user does not install or place the water purifier in the correct installation direction or accidentally topples the water purifier, the heating inner container may be damaged by dry burning after the water purifier is powered on in the case of insufficient water pressure.

Generally, an electrical equipment manufacturer designs and produces one type of electrical equipment, and designs and produces a plurality of different models so as to meet different user requirements. At this time, different types of electrical equipment may adopt different installation directions, such as horizontal installation, vertical installation, and the like, to meet different user installation requirements.

In addition, even if the same model of electric equipment is used, a plurality of correct installation directions can be provided. For example, if a water purifier of outward appearance for the cuboid adopts horizontal installation, erects the installation direction of installation, all can guarantee that the heating inner bag is in the horizontality, but if the installation direction of adopting the side-standing installation, then the heating inner bag is then in vertical state, leads to the heating inner bag to damage because of the water pressure is not enough very easily.

The direction detection circuit is separately designed for each model of the electrical appliance, the efficiency of repeated design is low, and the reliability is low due to individual customization. The design of the direction detection circuit for different models of electrical devices becomes more complicated if the electrical devices have multiple correct mounting directions.

Disclosure of Invention

The embodiment of the invention provides a direction detection device, aiming at solving the problem of how to provide a uniform direction detection scheme for different types of electric appliances.

The embodiment of the invention is realized in such a way.

In a first aspect, the present application provides a direction detection apparatus, which includes,

the direction detection circuit is used for detecting the current placing direction and outputting a current direction parameter corresponding to the current placing direction;

the controller is electrically connected with the direction detection circuit and is used for comparing the current direction parameter with a prestored direction parameter, judging whether the current placing direction is abnormal or not and outputting an alarm instruction when the current placing direction is judged to be abnormal; and

and the warning device is electrically connected with the controller and used for executing the warning instruction and sending out a warning signal indicating that the current placing direction is abnormal.

Optionally, the direction detection circuit includes at least two tilt detection switches perpendicular to each other, and the current direction parameter is a combination of current output signals of all the tilt detection switches.

Optionally, the tilt detection switches are barrel-shaped ball tilt switches, and the number of the barrel-shaped ball tilt switches is two;

the bowl-shaped electrodes with opposite openings are respectively arranged on the inner sides of the top surface and the bottom surface of the barrel-shaped ball tilt switch, the caliber of the edge of a sunken part of each bowl-shaped electrode is smaller than that of the inner side wall of the barrel-shaped ball tilt switch, and the edge of the sunken part is provided with a bent part vertically extending to the inner side wall; two the bowl type electrode with the inside wall vacuole formation, set up a free rolling conductor ball in the cavity, the diameter of conductor ball is greater than the clearance between two bowl type electrode depressed part borders.

Optionally, the pre-stored direction parameters are preset combinations of one or more groups of output signals of the tilt detection switch;

and if the controller judges that the preset combination consistent with the combination of the current output signal does not exist in all the preset combinations, determining that the current placing direction is abnormal.

Optionally, if it is detected that the direction detection device is powered on for the first time or a reset signal is received, the controller stores the current direction parameter as the pre-stored direction parameter.

Optionally, the direction detection circuit and the controller are fixed to the same substrate.

In a second aspect, an embodiment of the present application provides an electrical apparatus, where the electrical apparatus includes the direction detection device according to the first aspect.

Optionally, the electrical equipment is a water purifier, a water heater or a water dispenser with an instant heating type heat pipe.

Optionally, the instant heat pipe is an instant heat pipe through which water flows in the heat pipe.

On the one hand, because the mode of comparing with the direction parameter of prestoring is adopted, the direction detection circuit is installed according to the requirements of different electrical equipment, then only the correct or wrong installation direction needs to be prestored, and the same direction detection device can be matched with the installation modes of different electrical equipment as the basis for comparing and judging with the current direction parameter. No special design of the circuit or structure of the electrical device is required to adapt to the characteristics of the direction detection circuit. On the other hand, since the correct or incorrect installation direction can be pre-stored as a basis for comparison with the current direction parameter, the pre-stored direction parameters may be one or more. If the electrical device has multiple correct installation directions, multiple sets of direction parameters may be pre-stored for comparison. For example, if the horizontal installation direction and the vertical installation direction are both correct, two corresponding sets of direction parameters may be pre-stored, and the current direction parameter is compared with the two sets of pre-stored direction parameters, respectively, to determine whether the direction of the current mode is abnormal. The pre-stored direction parameters can be one or more, and the effect that the same direction detection device can be matched with multiple different installation modes of the same electrical equipment is achieved.

Drawings

FIG. 1 is a schematic structural diagram of a direction detection apparatus according to an embodiment of the present invention;

FIG. 2a is a schematic diagram illustrating an installation position relationship of a tilt detection switch of the direction detection circuit according to an embodiment of the present invention;

FIG. 2b is a schematic diagram showing the installation position relationship of the tilt detection switch of the direction detection circuit according to another embodiment of the present invention;

FIG. 3 is a schematic view of a barrel ball tilt switch according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a direction detection circuit according to an embodiment of the present invention;

FIG. 5a is a schematic view of an orientation detection apparatus according to an embodiment of the present invention;

FIG. 5b is a schematic view of another orientation detection apparatus according to an embodiment of the present invention;

fig. 5c is another schematic view of the orientation detection apparatus according to an embodiment of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to detect the direction or the inclination of the electrical equipment, an inclination detection circuit is usually disposed on the electrical equipment, and when the electrical equipment is inclined, the inclination detection circuit gives an alarm after meeting a corresponding trigger condition. However, when the tilt detection circuit is installed on different electrical devices, the tilt detection circuit needs to be installed according to the characteristics of the tilt detection circuit, for example, the tilt detection circuit needs to be installed in a specific direction, and the circuit and the structural design of the electrical devices need to be adapted to the tilt detection circuit. If one electrical device has a plurality of correct installation directions, the inclination detection circuit needs to be specially designed according to the correct installation directions, the repeated utilization rate is low, and the design and production cost is increased.

The embodiment of the application provides a direction detection device, and a direction detection circuit is arranged in the direction detection device. The direction detection circuit can detect the placing direction of the direction detection circuit and output current direction parameters corresponding to the current placing direction. According to the method and the device, whether the current placing direction is abnormal or not is judged by comparing the current direction parameter with the pre-stored direction parameter. And if the current placing direction is judged to be abnormal, alarming is carried out.

On the one hand, because the mode of comparing with the direction parameter of prestoring is adopted, the direction detection circuit is installed according to the requirements of different electrical equipment, then only the correct or wrong installation direction needs to be prestored, and the same direction detection device can be matched with the installation modes of different electrical equipment as the basis for comparing and judging with the current direction parameter. No special design of the circuit or the structure of the electrical device is required to adapt to the characteristics of the direction detection circuit.

On the other hand, since the correct or incorrect installation direction can be pre-stored as a basis for comparison with the current direction parameter, the pre-stored direction parameters may be one or more. If the electrical device has multiple correct installation directions, multiple sets of direction parameters may be pre-stored for comparison. For example, if the horizontal installation direction and the vertical installation direction are both correct, two corresponding sets of direction parameters may be pre-stored, and the current direction parameter is compared with the two sets of pre-stored direction parameters, respectively, to determine whether the direction of the current mode is abnormal. The pre-stored direction parameters can be one or more, and the effect that the same direction detection device can be matched with multiple different installation modes of the same electrical equipment is achieved.

Example one

As shown in fig. 1, the present embodiment provides a direction detecting device 110. The direction detecting device 110 includes a direction detecting circuit 111, a controller 112, and an alarm device 113.

The direction detection circuit 111 is configured to detect a current placement direction and output a current direction parameter corresponding to the current placement direction.

And the controller 112 is electrically connected with the direction detection circuit and is used for comparing the current direction parameter with a prestored direction parameter, judging whether the current placing direction is abnormal or not and outputting an alarm instruction when the current placing direction is judged to be abnormal.

And the warning device 113 is electrically connected with the controller and is used for executing the warning command and sending out a warning signal indicating that the current placing direction is abnormal.

In some embodiments, the direction detection circuitry includes a sensor or combination of sensors capable of detecting multiple directions, and the sensors correspond to peripheral circuitry. The sensor or the combination of sensors may be a combination of tilt switches, an angular velocity sensor, a combination of angular velocity sensors, or the like.

For example, a combination of two or more tilt switches placed perpendicular to each other and peripheral circuits thereof, or a combination of a plurality of angular velocity sensors and peripheral circuits thereof. The direction detection circuit can detect a plurality of different placement directions of the electrical equipment because the direction detection circuit adopts the sensor or the sensor combination which can detect a plurality of directions.

The direction detection circuit 111 is used for detecting the current placement direction of itself. It should be understood that since the direction detection circuit 111 is one component of the direction detection device 110, both the direction detection circuit 111 and the direction detection device 110 are components mounted on the target electrical apparatus. Therefore, the direction detecting circuit 111 is used to detect its current placing direction, which is actually the current placing direction of the electrical equipment where the detecting direction detecting device 110 and the direction detecting device 110 are located.

In some implementations, the controller 112 may be a system on chip including a processor and a memory 1121 and peripheral circuits thereof, or the controller 112 may be a discrete processor and memory 1121. The memory 1121 stores instructions executable by the processor, and the processor executes the instructions stored in the memory to implement the corresponding functions of the controller in the embodiments of the present application. In some embodiments, the controller 112 may further comprise a non-volatile memory, such as a latch or a flash memory, for storing the pre-stored direction parameters.

In some embodiments, the current direction parameter may be a switching parameter or a combination of switching parameters, such as 1 and 0, and may also be a parameter such as an angle value.

For example, the direction parameter of the output may be a switching parameter or a combination of switching parameters such as 1 and 0, in the case where the sensor in the direction detection circuit is a tilt detection switch. For example, the controller receives a parameter or a combination of parameters by detecting the level of each output pin of the direction detection circuit, a high level indicating a 1 and a low level indicating a 0.

Illustratively, the pre-stored direction parameter may be a direction parameter, e.g. "01", when the electrical device is correctly installed in the specified installation direction. If the current direction parameter output by the two mutually perpendicular tilt switches is '10', the current direction parameter can be judged to be abnormal by comparing the current direction parameter with the pre-stored direction parameter and determining that the current direction parameter is different.

For example, the pre-stored direction parameters may be direction parameters when the electrical equipment is installed by mistake, for example, "10" and "00", and the parameters output by two mutually perpendicular tilt switches are combined into "10" and are compared with the direction parameters of the wrong direction parameters one by one, and if the current direction parameters are found to be included, it can be determined that the current direction parameters are abnormal.

In some embodiments, the alarm device 113 may be a device that may emit an alarm signal by sound, light, text, pattern, or the like. The warning device includes but is not limited to a buzzer, an indicator light, a display screen and the like which can send out prompt information.

In some embodiments, the alert instructions output by the controller may be a sequence of instructions for controlling an alert device. The alarm device emits an acoustic, optical or electrical alarm signal when executing the sequence of instructions. In other embodiments, the alarm instruction output by the controller may be a preset control instruction, and the alarm device sends an alarm signal corresponding to the preset control instruction according to a preset flow in the alarm device after receiving the preset control instruction.

In some embodiments, the controller may control the alarm device to alarm immediately and may also control the alarm device to alarm in a delayed manner when determining that the current placement direction is abnormal. Specifically, 5 seconds of delay can be used for controlling an alarm device to give an alarm.

It can be understood that, in the embodiment of the application, whether the current placing direction is abnormal or not is judged by comparing the current direction parameter output by the direction detection circuit with the pre-stored direction parameter.

On one hand, the mode of comparing the direction parameters with the pre-stored direction parameters is adopted, so that the direction detection circuit is installed according to the requirements of different electrical equipment, and then only the correct or wrong installation direction needs to be pre-stored and is used as the basis for comparing and judging the current direction parameters, so that the effect that the same direction detection device can adapt to the installation modes of different electrical equipment can be achieved. No special design of the circuit or structure of the electrical device is required to adapt to the characteristics of the direction detection circuit.

On the other hand, since the correct or incorrect installation direction can be pre-stored as a comparison basis with the current direction parameter, the pre-stored direction parameters can be one or more. If the electrical device has multiple correct installation directions, multiple sets of direction parameters may be pre-stored for comparison. For example, if the horizontal installation direction and the vertical installation direction are both correct, two corresponding sets of direction parameters may be pre-stored, and the current direction parameter is compared with the two sets of pre-stored direction parameters, respectively, to determine whether the direction of the current mode is abnormal. The pre-stored direction parameters can be one or more, and the effect that the same direction detection device can be matched with multiple different installation modes of the same electrical equipment is achieved.

Example two

In some embodiments, the direction detection circuit comprises at least two tilt detection switches perpendicular to each other, and the current direction parameter is a combination of current output signals of all the tilt detection switches.

Fig. 2a and 2b are schematic diagrams illustrating the installation position relationship of the tilt detection switch in the two-direction detection circuit provided by the embodiment of the present application. Each arrowed line segment in fig. 2a and 2b represents a tilt detection switch. As shown in fig. 2a, two tilt detection switches may be employed, arranged horizontally perpendicular to each other on a horizontally placed circuit board of the tilt detection circuit. As shown in fig. 2b, three or more tilt detection switches may be employed, arranged perpendicular to each other on the circuit board of the tilt detection circuit.

It should be understood that not all orientations of the appliance may be used for installation. For example, the display panel is often not mounted upside down by mistake as a bottom surface because it is too conspicuous. Therefore, the directions that the electrical equipment needs to detect may not be all the placement directions, and only the correct or error-prone directions need to be detected. When the embodiment of the application is implemented, the number and the installation mode of the inclination detection switches can be selected according to actual needs. Of course, the mutual position relationship between the tilt detection switches can be flexibly adjusted by referring to the embodiments of the present application without additional creative labor.

In some embodiments, the pre-stored direction parameter is a preset combination of one or more sets of output signals of the tilt detection switch, and if the controller determines that there is no preset combination consistent with the combination of the current output signal in all the preset combinations, it is determined that the current placement direction is abnormal.

The preset combination refers to a combination in a preset arrangement order, for example, the tilt detection switch 1, the tilt detection switch 2, and the tilt detection switch 3 may be combined according to a preset tilt detection switch number order.

It is understood that since the tilt detection switch detects the switching amount as the output, two or more tilt detection switches perpendicular to each other can detect at least 2 directions. Namely, the device can be adapted to at least two models or at least two installation modes of one electrical device. In addition, the inclination detection switch has simple structure and low cost, so the detection in multiple directions by utilizing the inclination detection switch combination is simple and convenient to realize and has low cost.

EXAMPLE III

In some embodiments, the direction detection circuit may be formed using two barrel ball tilt switches perpendicular to each other and a peripheral circuit of each barrel ball tilt switch.

As shown in fig. 3, two bowl-shaped electrodes (313, 314) with opposite openings are respectively disposed on the inner side of the top surface 311 and the inner side of the bottom surface 312 of the barrel-shaped ball tilt switch 310, the aperture of the concave portion edge (3131, 3141) of the bowl-shaped electrode (313, 314) is smaller than the aperture of the inner side wall 315 of the barrel-shaped ball tilt switch 310, and the concave portion edge (3131, 3141) is provided with a bending portion (3132, 3142) vertically extending to the inner side wall; the two bowl-shaped electrodes and the inner side wall form a cavity 316, a conductor ball 317 capable of rolling freely is arranged in the cavity 316, and the diameter of the conductor ball 317 is larger than a gap 318 between the edges (3131, 3141) of the concave parts of the two bowl-shaped electrodes.

The working principle of the barrel-type ball tilt switch is as follows:

1. when the barrel-shaped ball tilt switch is vertically placed, the conductor ball is only attached to the metal wall of the bowl-shaped electrode at one end. At the moment, the upper metal wall and the lower metal wall are separated, the circuit between the two bowl-shaped electrodes is in an off state, and the bucket-shaped ball tilt switch is in an off state.

2. When the inclination angle of the barrel-shaped ball tilt switch relative to the vertical placement is larger than 45 degrees or the barrel-shaped ball tilt switch is placed horizontally, the conductor balls are attached to the metal walls of the bowl-shaped electrodes at two ends, the circuit between the two bowl-shaped electrodes is conducted at the moment, and the barrel-shaped ball tilt switch is in a conducting state.

Fig. 4 is a schematic diagram illustrating a direction detection circuit including a barrel ball tilt switch and a peripheral circuit thereof according to an embodiment of the present disclosure. In this example, two barrel ball tilt switches that detect different directions, a barrel ball tilt switch 1 (QX 1) and a barrel ball tilt switch 2 (QX 2), are provided. In the circuit, resistors (R5, R6) and capacitors (C4, C5) of a peripheral circuit respectively matched with the barrel-type ball tilt switch can be arranged according to actual conditions. The barrel type ball tilt switch is hereinafter referred to as a switch, and the process of generating and outputting detection signals in the vertical state and the horizontal state is as follows:

the vertical state of the switch, the disconnection of the switch, the high level at two sides of the switch, 5V, the input of the controller, 5V, namely the input 1 of the controller;

switch horizontal state > switch closed > low level 0V on both sides of switch > controller input 0V, i.e. controller input 0.

Referring to fig. 5a to 5c, the output signals of the two mutually perpendicular barrel-shaped ball tilt switches in fig. 4 have several combinations shown in table 1 when the circuit boards 510 of the direction detection circuit are in different postures. As shown in table 1, the direction detection circuit can detect 3 different placement directions.

When the circuit board is horizontally placed (fig. 5 a) with respect to the horizontal plane 501, QX1 (511) is in a conducting state, and its corresponding circuit outputs a low level, i.e., outputs 0; QX2 (512) is in the on state and its corresponding circuit outputs a low level, i.e., outputs 0.

When the circuit board is in an upright position (fig. 5 b) relative to the horizontal plane 501, QX1 (511) is in an open state and its corresponding circuit outputs a high level, i.e., output 1; QX2 (512) is in the on state and its corresponding circuit outputs a low level, i.e., outputs 0.

When the circuit board is placed on its side (fig. 5 c) with respect to the horizontal plane 501, QX1 (511) is in a conducting state, and its corresponding circuit outputs a low level, i.e., outputs 0; QX2 (512) is in the off state and its corresponding circuit outputs a high level, i.e., output 1.

Table 1:

	is horizontally placed	Is vertically placed	Is placed on one's side
				QX1(511)	0	1	0
QX2(512)	0	0	1

The following are two examples of practical applications of the present application in detecting the orientation of an electrical device by using two barrel-shaped ball tilt switches perpendicular to each other.

Example 1: the horizontal placement direction of the circuit board 510 shown in fig. 5a is taken as a designated placement direction. That is, it is normal only when the circuit board 510 is placed horizontally, and it may cause damage to the device if it is placed upright or on its side, which is an abnormal situation.

When the circuit board 510 of the direction detection circuit is in a normal standby state, the two switches are placed horizontally, the two sides of the switches (511, 512) are at a low level of 0V, and the controller reads the low level of 0V, that is, the controller inputs "00".

If the circuit board is tilted left and right (as shown in fig. 5 b), one of the switches is in a vertical state, the switch QX1 (511) is turned off, the two sides of the switch are at a high level of 5V, the controller reads a 5V signal, a high level signal appears at the switch QX1 (511) and a low level signal appears at the switch QX2 (512), that is, the controller inputs "10".

If the circuit board is tilted back and forth (see fig. 5 c), the switch QX2 (512) is in the vertical state, and at this time, a high level signal appears in the switch QX2 (512), and a low level signal appears in the switch QX1 (511), that is, the controller input "01".

Example 2: the circuit board 510 shown in fig. 5c is placed on its side as a specified placement direction. That is, it is normal only if the circuit board 510 is placed on its side, which may cause device damage if placed horizontally (fig. 5 a) or vertically (fig. 5 b), which is an abnormal situation.

When the circuit board 510 of the direction detection circuit is in a normal standby state, the two tilt switches are a switch QX1 (511) horizontal and a switch QX2 (512) vertical. According to the above principle, the level of the tilt switch QX1 (511) is turned on, and the output level is low level 0V; the tilt switch QX2 (512) is vertically in an off state, and the output level is high level 5V, at which time the controller inputs "01".

If the board inclines to the left and right (fig. 5 b), the two switch states are just exchanged, the inclined switch QX1 (511) is vertically in an off state, and the output level is high level 5V. The tilt switch QX2 (512) is on horizontally, and the output level is low level 0V, at which time the controller inputs "10".

If the board is tilted forward or backward, the two switches are both in the horizontal state, and according to the principle, the two switches are both in the on state, the controller input signal is 0V, and the controller inputs "00".

In view of the above examples 1 and 2, under the condition that the designated placement directions of the direction detection circuits are different, the same circuit board can be used to set the preset direction parameters, and whether the current placement direction of the product is abnormal or not can be judged through software, so that the omnibearing alarm function is realized.

It can be understood that the direction detection circuit is formed by two mutually perpendicular barrel-shaped ball tilt switches and a peripheral circuit of each barrel-shaped ball tilt switch, so that the change of 3 placing directions of the electrical equipment can be detected, and the direction detection circuit is suitable for the direction detection of most placing modes of the cubic electrical equipment.

If an instant heat pipe is installed in an electrical apparatus, particularly, if the instant heat pipe is an instant heat pipe through which water flows, the normal correct installation direction is generally 1 or 2. The instant heating type heat pipe with water in the heat pipe adopts the mode that water is introduced into the pipe, the heating body is distributed around the heat pipe, and water flow is heated when passing through the heat pipe. The water heater can be normally used when the water heater is horizontally placed, but when the water heater is vertically placed, if the water pressure is insufficient, the problem of dry burning damage after electrification can occur. The direction detection circuit formed by the two mutually vertical barrel-shaped ball tilt switches is low in cost, can detect more directions, and is more suitable for direction detection of the electrical equipment.

Example four

In some embodiments, the controller includes a latch or a non-volatile memory such as a flash memory. The nonvolatile memory records an initial power-on flag indicating whether the direction detection device is powered on or not, that is, the electric equipment is powered on for the first time, and the controller starts to operate.

For example, an initial power-up flag of 0 indicates that power has never been applied, and an initial power-up flag of 1 indicates that power has been applied at least once. When the embodiment of the present application is implemented, other manners may also be used to mark whether the direction detection device is powered on once, for example, a character string is used for marking.

In other embodiments, the direction detection device further comprises a reset signal circuit electrically connected to the controller, and the reset signal circuit can be triggered by the reset button. When the reset key is pressed, the reset signal circuit generates a reset signal and sends the reset signal to the controller. And the controller receives the reset sequence and executes the operation corresponding to the reset signal.

In some embodiments, the controller stores the current direction parameter as the pre-stored direction parameter if it detects that the direction detecting device is powered on for the first time or receives a reset signal.

Specifically, the controller inquires an initial power-on flag during power-on, and if the initial power-on flag is 0, it indicates that the electrical equipment is powered on for the first time; or the electrical equipment receives a reset signal sent by the reset circuit in the normal operation process; when one of the two trigger conditions occurs, the controller reads the current direction parameter from the direction detection circuit and writes the current direction parameter as a pre-stored direction parameter into a nonvolatile memory electrically connected with the controller. In the subsequent installation and use processes of the electrical equipment, the pre-stored direction parameters are used as a comparison basis for judging whether the placement direction of the electrical equipment is abnormal or not.

It can be understood that the direction detection device provided by the application can be suitable for different electrical equipment, such as a water purifier, a water heater or a water dispenser, and can also be suitable for different models of the electrical equipment. In the process of producing the electric appliances, especially different models of the same electric appliance, corresponding pre-stored direction parameters need to be written into the different models of the electric appliances. If the operator confuses the product model, writing wrong pre-stored direction parameters may possibly result in damage to the electrical equipment. In addition, under the condition that only one installation direction of some products exists, equipment for writing in pre-stored direction parameters is independently configured for the products, and personnel are trained to operate the equipment for writing in the pre-stored direction parameters, so that the production cost is also increased.

By adopting the technical scheme provided by the embodiment of the application, an operator does not need to adopt additional writing equipment to write the pre-stored direction parameters, only the electrical equipment needs to be placed in the correct installation direction, the electrical equipment is powered on, or the reset key is pressed to reset the electrical equipment, and the direction detection device can automatically set the pre-stored direction parameters. Therefore, the direction detection device provided by the embodiment of the application simplifies the operation of writing the pre-stored direction parameters, thereby improving the production efficiency and reducing the production cost; because the correct placing mode of the electrical equipment can be obviously seen on the production line, compared with the abstract operation of writing in the pre-stored direction parameters, the method is not easy to make mistakes, and avoids the loss caused by the mistakes.

EXAMPLE five

In some implementations, the direction detection circuit and the controller are affixed to the same substrate. Specifically, the substrate may be a Printed Circuit Board (PCB). It should be understood that when the direction detection device provided in the embodiments of the present application is used in an electrical apparatus, the substrate may also be configured with other functional circuits of the electrical apparatus, such as a control circuit, a communication circuit, a display circuit, and the like.

It can be understood that, since the direction detection circuit and the controller are fixed on the same substrate, or other functional circuits are also fixed on the same substrate, the processing of the production process is facilitated on the one hand. For example, in a scene needing waterproofing, the same waterproofing measure can be adopted to avoid respective waterproofing treatment. On the other hand, the direction detection device that this application embodiment provided can be owing to can be through writing into the different direction parameter of prestoring, comes the different installation orientation of adaptation, adopts the base plate of this application technical scheme so, can realize the installation of multiple different installation orientation, for example erect the installation, or horizontal installation, only need revise prestoring direction parameter, just can adapt to the electrical equipment of different models, and application scope is wide, simple to operate.

It is understood that, under the teaching of the above embodiments, a person skilled in the art can combine various embodiments in the above embodiments to obtain a technical solution of various embodiments.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (9)

1. A direction detection device, characterized in that the direction detection device comprises,

the direction detection circuit is used for detecting the current placing direction and outputting a current direction parameter corresponding to the current placing direction;

the controller is electrically connected with the direction detection circuit and is used for comparing the current direction parameter with a prestored direction parameter, judging whether the current placing direction is abnormal or not and outputting an alarm instruction when the current placing direction is judged to be abnormal; and

and the warning device is electrically connected with the controller and used for executing the warning instruction and sending out a warning signal indicating that the current placing direction is abnormal.

2. The direction detecting apparatus according to claim 1, wherein the direction detecting circuit includes at least two tilt detecting switches perpendicular to each other, and the current direction parameter is a combination of current output signals of all the tilt detecting switches.

3. The direction detecting device as claimed in claim 2, wherein the tilt detecting switches are barrel type ball tilt switches, the number of which is two;

the bowl-shaped electrodes with opposite openings are respectively arranged on the inner sides of the top surface and the bottom surface of the barrel-shaped ball tilt switch, the caliber of the edge of a sunken part of each bowl-shaped electrode is smaller than that of the inner side wall of the barrel-shaped ball tilt switch, and the edge of the sunken part is provided with a bent part vertically extending to the inner side wall; two bowl type electrode with the inside wall vacuole formation, set up a free rolling conductor ball in the cavity, the diameter of conductor ball is greater than the clearance between two bowl type electrode depressed part edges.

4. The direction sensing apparatus of claim 2, wherein the pre-stored direction parameters comprise a plurality of pre-set combinations of tilt detection switch output signals;

and if the controller judges that no preset combination consistent with the combination of the current output signal exists in all the preset combinations, determining that the current placement direction is abnormal.

5. The apparatus according to claim 1 or 4, wherein the controller stores the current direction parameter as the pre-stored direction parameter if detecting that the direction detecting apparatus is powered on for the first time or receiving a reset signal.

6. The orientation detecting apparatus of claim 1 wherein the orientation detecting circuit and the controller are fixed to a same substrate.

7. An electrical apparatus, characterized in that it comprises a direction detection device according to any one of claims 1 to 5.

8. The electrical apparatus of claim 7, wherein the electrical apparatus is a water purifier, a water heater, or a water dispenser having an instant heat pipe.

9. The electrical equipment of claim 8, wherein the instant heat pipe is an instant heat pipe through which water flows.

Images