JP4329222B2 - Tilt detection device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an inclination detection device that detects the degree of inclination of a product.
[0002]
[Prior art]
Conventional tilt detectors of this type (hereinafter referred to as tilt switches) are used in gas, oil, and electric heating equipment, and detect the tilt and fall of the heating equipment due to earthquakes or external impacts. Combustion was stopped, or energization to the heater was stopped. As shown in FIG. 8, the spring pressure type tilt switch 1 is installed on the bottom surface of a product such as a heating device, and presses an internal spring with the product weight to short-circuit the contact. Shi When the product tilts or falls, the product weight is not applied to the spring pressure type tilt switch 1, and the contact is opened because the internal spring is not pressed. When the spring pressure type tilt switch 1 is opened, the energization path to the product load 2 such as a heater is cut off, and the energization is stopped.
[0003]
However, if the product bottom surface is pressed against the indoor wall surface 3 as the product is tilted or overturned, there is a state where the overturn cannot be detected even though the product is overturned, and a dangerous state cannot be avoided. It was. Further, in the configuration in which the energization path of the product load 2 such as a combustion device or a heater is directly cut off at the contact point of the spring pressure type tilt switch 1, commercial power is applied to the spring pressure type tilt switch 1 itself, and further, the contact point of the tilt switch 1 Since a large current flows through the heater, the configuration of the spring pressure type tilt switch 1 is complicated, such as the measures for ensuring the reliability in the insulation between the contacts and the connection with the product load.
[0004]
In recent years, a tilt switch with reduced power has been developed, and a method of detecting a fall state of a product by inputting a tilt switch signal to a microcomputer (not shown) has become mainstream. The low power tilt switch 4 will be described with reference to FIG. The low-power tilt switch 4 is generally often installed on a printed circuit board 5 inside the product, and has mercury or a spherical conductor 6 inside, and the internal mercury or spherical conductor 6 is connected to the internal contact 7 by gravity. When the product is tilted, the spherical conductor 6 does not come into contact with the internal contact 7 when the product is tilted, and the conduction path is cut off to detect the tilt.
[0005]
Further, as shown in FIG. 10, the second small power tilt switch 8 having a non-conductor inside has mechanically pushed down the pressing portion 10 by the gravity of the spherical non-conductor 9, Push to bring the fixed contact 12 into conduction. In the case of tilting, the spherical non-conductor 9 does not depress the pressing portion 10, the movable contact 11 having springiness is released from the fixed contact 12, the conduction path is cut off, and the tilt is detected.
[0006]
Yes. Z These tilt switches also detect that the internal contacts are tilted if they are tilted more than ± 45 ° from the horizontal or vertical, and detect that they are not tilted if they are within ± 30 ° from the horizontal or vertical. Many. In the range of ± 30 ° to ± 45 ° from the horizontal or vertical, angular hysteresis is provided so that the internal mercury, the spherical conductor 6 and the spherical non-conductor 9 do not turn on / off the internal contacts.
[0007]
The inner wall surface 13 of mercury, the spherical conductor 6 and the spherical nonconductor 9 has a conical shape, and the inclination degree can be detected over the entire circumference of the inclination switch. When the printed circuit board 5 is mounted horizontally in the product, the internal contacts 7, 11, 12 of the tilt switches 4, 8 are connected to the internal mercury 7, the spherical conductor 6, and the spherical non-conductor 9 in the direction of gravity. It is configured to be drawn on the extension line. When the printed circuit board 5 is mounted vertically in the product, the internal contacts 7, 11 and 12 of the tilt switches 4 and 8 are connected to the gravity of the internal mercury, the spherical conductor 6 and the spherical non-conductor 9. It is the structure pulled out in the direction orthogonal to the direction.
[0008]
Furthermore, in recent years when protection of the global environment is screamed, the use of mercury for internal conductors is decreasing, and spherical and hemispherical conductors are increasing as internal conductors.
[0009]
[Problems to be solved by the invention]
However, in the conventional configuration, the printed circuit board on which the tilt switches 4 and 8 are installed.
When 5 is installed in the horizontal or vertical direction, it detects the degree of inclination of the tilt switches 4 and 8 (for example, when it is inclined ± 45 ° or more from the horizontal or vertical, it detects that the inclination is Alternatively, if the printed circuit board 5 is inclined from the horizontal or vertical, the printed circuit board is determined from the performance of the inclination switches 4 and 8 itself. The angle obtained by subtracting the angle at which 5 is inclined is the angle at which the degree of inclination of the product is detected.
[0010]
Specifically, if the printed circuit board 5 is installed at an angle of 10 ° from the horizontal or vertical and the tilt switches 4 and 8 are in close contact with the printed circuit board 5, the product But The angles detected as being tilted are in the range of + 35 ° and −55 ° obtained by subtracting the tilt 10 ° of the printed circuit board 5 from the tilt detection angle ± 45 ° of the tilt switches 4 and 8.
[0011]
Similarly, as the angle to detect that the inclination is not inclined, the horizontal switches of the inclination switches 4 and 8 are in the range of + 20 ° and −40 ° obtained by subtracting the inclination 10 ° of the printed board 5 from the angle ± 30 ° for detecting the vertical. Become.
[0012]
This is because the detection angle of the tilt switches 4 and 8 depends on the installation state of the printed circuit board 5 inside the product (installed at an angle of 10 ° from the horizontal or vertical position) even though the product is installed in a horizontal state. Changes, and it is erroneously detected that the product is not inclined but is not inclined, or is erroneously detected that the product is not inclined although it is inclined. For the user, the product load 2 such as the heater is suddenly stopped while the product is being used, and the usability is poor.
[0013]
On the other hand, when the product is tilted or the product is overturned, there is a problem that the product load 2 such as a heater is energized without detecting that the product is tilted.
[0014]
The present invention solves the above-mentioned conventional problems, and even when the tilt switch or the printed circuit board on which the tilt switch is installed is not installed horizontally or vertically, the horizontal or vertical state is accurately detected, and the usability is improved. It is an object to provide a tilt switch that is good and has no false detection.
[0015]
[Means for Solving the Problems]
In order to solve the above-described conventional problems, the tilt detection device of the present invention is provided with a holder for correcting the installation angle of the tilt switch. Even if the printed circuit board on which the tilt switch is installed is tilted inside the product, the tilt switch itself is secured by setting the tilt switch in a horizontal state or a vertical state by the holder.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 is a tilt switch for detecting a tilt angle; Above Holder for correcting the installation angle of the tilt switch The tilt switch and a printed circuit board for fixing the holder, wherein the holder has an opening through which a contact terminal of the tilt switch passes, and the contact terminal of the tilt switch passes through the opening to pass through the opening. The tilt switch and the holder are attached to the printed circuit board by fixing to the printed circuit board. Thus, even if the printed circuit board on which the tilt switch is installed or the tilt switch itself is tilted, the tilt detection angle is corrected by the holder. A detection angle other than a general-purpose tilt switch can be detected, and a tilt state can be detected more in line with the use state. In addition, since the tilt switch can accurately detect the degree of tilting without having to place the printed circuit board horizontally or vertically, the shape of the printed circuit board can be optimized to meet social demands for smaller and lighter products. Can do.
[0017]
According to the second aspect of the present invention, the tilt switch and the printed circuit board on which the tilt switch is installed are not installed horizontally or vertically by making the tilt switch installation angle horizontal or vertical with the holder. Therefore, it is possible to provide a tilt detecting device that can detect a horizontal or vertical state and a tilt degree, is easy to use, and has no erroneous detection.
[0018]
According to the third aspect of the present invention, the holder and the tilt switch can be brought into contact with each other without any gap by providing the holder with a projection that is in close contact with the tilt switch, and the fitting between the holder and the tilt switch can be performed when correcting the detection angle of the tilt switch. It is possible to prevent a decrease in tilt detection performance due to a shift or the like.
[0019]
In the invention according to claim 4, by providing the holder with a protrusion that holds and closely contacts the upper surface of the tilt switch, the upper surface of the tilt switch can be pressed against the holder so that the tilt switch and the holder can be in contact with each other without any gap. When correcting the detection angle, it is possible to prevent a decrease in tilt detection performance due to misalignment between the holder and the tilt switch.
[0020]
The invention according to claim 5 is provided with a protrusion that press-fits the side face of the tilt switch into the holder so that the tilt switch can be brought into close contact, so that the tilt switch and the holder can be in contact with each other without any gap between the side face of the tilt switch and the protrusion of the holder. When the detection angle is corrected, it is possible to prevent the tilt detection performance from being deteriorated due to misalignment between the holder and the tilt switch.
[0021]
The invention according to claim 6 is provided on either the tilt switch or the holder. another Provide an opening, tilt switch or the other of the holder another Providing a protrusion that is in close contact with the opening allows the inclination switch and the holder to be in contact with each other by inserting the other protrusion into one opening when fixing the inclination switch to the holder. At the time of correction, it is possible to prevent a decrease in tilt detection performance due to misalignment between the holder and the tilt switch.
[0022]
Claim 7 Invention is a holder -Has a protrusion that makes contact with the printed circuit board so that the holder and the printed circuit board can be in contact with each other without any gaps. When correcting the detection angle of the tilt switch that is in close contact with the holder, there is a tilt due to misalignment between the holder and the printed circuit board. A decrease in detection performance can be prevented.
[0023]
The invention according to claim 8 is provided with a protrusion for holding and closely contacting the lower surface of the printed circuit board to the holder, so that when the holder is inserted into the printed circuit board, the protrusion of the holder is hooked on the lower surface of the printed circuit board. To eliminate misalignment between the holder and the printed circuit board. Accordingly, it is possible to prevent the tilt detection performance from being deteriorated due to misalignment between the holder and the printed board when correcting the detection angle of the tilt switch that is in close contact with the holder.
[0024]
According to the ninth aspect of the present invention, the holder is inserted into the printed board so that the holder is inserted into the opening of the printed circuit board and brought into close contact with the printed circuit board. Make the holder contact without gaps. Accordingly, it is possible to prevent the tilt detection performance from being deteriorated due to misalignment between the holder and the printed board when correcting the detection angle of the tilt switch that is in close contact with the holder.
[0025]
【Example】
Embodiments of the present invention will be described below with reference to FIGS.
[0026]
(Examples 1 and 2)
1 and 2 show an external view of a tilt detecting device according to the first and second embodiments of the present invention.
is there. In FIG. 1, 14 is a tilt switch, 15 is a holder for correcting the detection angle of the tilt switch, and 5 is a printed circuit board which is installed inside the product and the tilt degree is detected by the tilt switch 14. The inclination switch 14 of this embodiment is a type of inclination switch that detects a state in which the contact terminal 16 is drawn out on an extension line in the gravity direction of an internal spherical conductor (not shown) and the inclination switch 14 is installed horizontally. It is. As a specific detection angle, when it is inclined ± 45 ° or more from horizontal or vertical, it is detected that it is inclined, and when it is within ± 30 ° from horizontal or vertical, it is detected that it is not inclined. .
[0027]
The holder 15 has an opening through which the contact terminal 16 of the tilt switch 14 passes, and the fitting surface on the tilt switch 14 side of the holder 15 has a shape that follows the shape of the fitting surface of the tilt switch 14. In the fitting between the tilt switch 14 and the holder 15, the detection angle is not affected. The mating surface of the holder 15 on the printed circuit board 5 side is inclined with an angle that corrects the detection angle of the inclination switch 14 to be used.
[0028]
As a specific example, a case will be described in which the detection is performed when the inclination of the product is inclined by 25 °, limited to one direction. At this time, the angle of the mating surface on the printed circuit board 5 side of the holder 15 may be inclined by 20 ° by subtracting 25 ° of the degree of product inclination to be detected from 45 ° which is the detection angle of the inclination switch 14. As a result, when the product is installed in a horizontal state, the tilt switch 14 itself is attached with an inclination of 20 ° from the horizontal. Since the tilt detection angle of the tilt switch 14 is 45 ° when the product is tilted by 25 °, the tilt state of the product can be detected.
[0029]
Further, for the holder 15 that corrects the tilt switch 14 according to the second embodiment of the present invention to the horizontal state, the printed board 5 side mating surface of the holder 15 is printed to eliminate the installation angle of the printed board 5 inside the product. The substrate 5 is inclined at an angle (α °) approximately equal to the installation angle inside the product. At this time, when the product is not in a horizontal state due to an external factor such as an earthquake or movement of the user, the tilt switch 14 itself is in a tilt state similar to the tilt degree of the product. Can be detected.
[0030]
In the holder 15 configured as described above, the inclination degree of the product can be detected regardless of the detection angle of the inclination switch 14 by inclining the shape of the holder 15 at an angle from the horizontal.
[0031]
In addition, even when the printed circuit board 5 is installed not only in one direction but also in two directions (β °, γ °) as shown in FIG. 2, an angle (β ° , Γ °), the tilt switch 14 can accurately detect the tilt degree.
[0032]
Furthermore, even if the printed circuit board 5 is installed in a vertical state and the tilt switch 14 has a shape for detecting the vertical state, the shape of the holder 15 is set so that the installation state of the tilt switch 14 is vertical. The above effect can be obtained.
[0033]
(Examples 3 and 4)
FIG. 3 shows an external view of the tilt detection apparatus in the third and fourth embodiments of the present invention. The description of the same reference numerals in the drawings is omitted.
[0034]
In the present embodiment, the holder 15 is provided with a projection 17 to hold the upper surface of the tilt switch 14 so that the tilt switch 14 and the holder 15 are in close contact with each other. The holder 15 has an opening through which the contact terminal 16 of the tilt switch 14 passes, and the fitting surface on the tilt switch 14 side of the holder 15 has a shape that follows the shape of the fitting surface of the tilt switch 14. 14 and the holder 15 have a shape that does not affect the detection angle. Further, the mating surface of the holder 15 on the printed circuit board 5 side is inclined at the same degree as the installation angle of the printed circuit board 5 inside the product so as to eliminate the installation angle of the printed circuit board 5 inside the product.
[0035]
When inserting the tilt switch 14 into the holder 15, the contact terminal 16 is inserted into the opening of the holder 15, and the protrusion 17 is hooked on the upper surface of the tilt switch 14. The fitting portion of the protrusion 17 with the upper surface of the tilt switch 14 has a shape along the upper surface of the tilt switch 14 and has a fitting area that does not easily escape from the tilt switch 14 (the fitting portion is approximately 2 mm square or more). The tilt switch 14 is pressed against the holder 15 side by the protrusion 17, and is integrally formed without being detached from the holder 15 by the contact terminal 16 and the protrusion 17. The contact terminal 16 of the tilt switch 14 protrudes from the lower surface of the holder 15 (printed circuit board 5 side), and the tilt switch 14 and the holder 15 are attached to the printed circuit board 5 as a tilt detecting device in which the protrusion 17 is integrally formed, and soldering or the like. Is fixed in close contact with the printed circuit board 5.
[0036]
In the holder 15 configured as described above, when the product is no longer in a horizontal state due to an external factor such as an earthquake or a user's movement, the tilt switch 14 itself is tilted to the same degree as the tilt of the product. Therefore, it is possible to detect whether the product is tilted.
[0037]
Even when the printed circuit board 5 is installed not only in one direction but also in two directions, the inclination of the inclination switch 14 can be adjusted to an accurate degree of inclination by forming the shape of the holder 15 at an angle that keeps the inclination switch 14 horizontal. Can be detected.
[0038]
Furthermore, even if the printed circuit board 5 is installed in a vertical state and the tilt switch 14 has a shape for detecting the vertical state, the shape of the holder 15 is set so that the installation state of the tilt switch 14 is vertical. The above effect can be obtained.
[0039]
In this embodiment, a single protrusion 17 that holds the upper surface of the tilt switch 14 is described. However, the same applies to a plurality of protrusions that hold the upper surface of the tilt switch 14 and can be in close contact with the holder 15. Needless to say.
[0040]
(Example 5)
FIG. 4 shows an external view of a tilt detection apparatus according to the fifth embodiment of the present invention. The description of the same reference numerals in the drawings is omitted.
[0041]
In the present embodiment, the holder 15 is provided with a side surface holding portion 18 for holding the side surface of the tilt switch 14 so that the tilt switch 14 and the holder 15 are in close contact with each other. The holder 15 has an opening through which the contact terminal 16 of the tilt switch 14 passes, and the fitting surface on the tilt switch 14 side of the holder 15 has a shape that follows the shape of the fitting surface of the tilt switch 14. 14 and the holder 15 have a shape that does not affect the detection angle. Further, the mating surface of the holder 15 on the printed circuit board 5 side is inclined at the same degree as the installation angle of the printed circuit board 5 inside the product so as to eliminate the installation angle of the printed circuit board 5 inside the product.
[0042]
The distance between the protrusions of the side surface holding portion 18 of the holder 15 is set to be approximately the same as or about 1 mm smaller than the side surface portion of the inclination switch 14, and the inclination switch 14 is held by the rigidity of the side surface holding portion 18 of the holder 15, When the tilt switch 14 is inserted into the holder 15, the contact switch 16 is inserted into the opening of the holder 15, and the side surface of the tilt switch 14 is press-fitted into the side surface holding portion 18, so that the tilt switch 14 is released from the holder 15. There is no integral configuration.
[0043]
The contact terminal 16 of the tilt switch 14 protrudes from the lower surface (printed circuit board 5 side) of the holder 15, and the tilt switch 14 and the holder 15 are attached to the printed circuit board 5 as a tilt detection device integrally formed by the side surface holding portion 18 and soldered. The printed circuit board 5 is brought into close contact with each other by fixing it.
[0044]
In the holder 15 configured as described above, when the product is no longer in a horizontal state due to an external factor such as an earthquake or movement by a user, the tilt switch 14 itself is tilted to the same degree as the tilt of the product. Therefore, it is possible to detect whether the product is tilted.
[0045]
Even when the printed circuit board 5 is installed not only in one direction but also in two directions, the inclination of the inclination switch 14 can be adjusted to an accurate degree of inclination by forming the shape of the holder 15 at an angle that keeps the inclination switch 14 horizontal. Can be detected.
[0046]
Furthermore, even if the printed circuit board 5 is installed in a vertical state and the tilt switch 14 has a shape for detecting the vertical state, the shape of the holder 15 is set so that the installation state of the tilt switch 14 is vertical. The above effect can be obtained.
[0047]
(Example 6)
FIG. 5 shows an external view of a tilt detection apparatus according to the sixth embodiment of the present invention. The description of the same reference numerals in the drawings is omitted.
[0048]
In the present embodiment, the holder 15 is provided with an opening 19 to hold the protrusion from the tilt switch 14 so that the tilt switch 14 and the holder 15 are in close contact with each other. The holder 15 has an opening through which the contact terminal 16 of the tilt switch 14 passes, and the fitting surface on the tilt switch 14 side of the holder 15 has a shape that follows the shape of the fitting surface of the tilt switch 14. 14 and the holder 15 have a shape that does not affect the detection angle. Further, the mating surface of the holder 15 on the printed circuit board 5 side is inclined at the same degree as the installation angle of the printed circuit board 5 inside the product so as to eliminate the installation angle of the printed circuit board 5 inside the product.
[0049]
When inserting the tilt switch 14 into the holder 15, the contact terminal 16 is inserted into the opening of the holder 15, and the protrusion of the tilt switch 14 is hooked on the opening 19 of the holder 15. Opening Part 19 is inclined The opening area is sufficient to insert the protrusion of the switch 14 (generally about 1 mm larger than the protrusion), and the fitting portion with the protrusion of the tilt switch 14 is a fitting area that does not easily escape from the tilt switch 14 ( The fitting part is about 2 mm square or more).
[0050]
The tilt switch 14 is pressed against the holder 15 side by fitting the protrusion of the tilt switch 14 with the opening 19 of the holder 15, and has an integrated configuration without being detached from the holder 15 by the contact terminal 16. The contact terminal 16 of the tilt switch 14 protrudes from the lower surface (printed circuit board 5 side) of the holder 15, and the tilt switch 14 and the holder 15 are integrally configured by the protrusion of the tilt switch 14 and the opening 19 of the holder 15. It is attached to the printed circuit board 5 and is brought into close contact with the printed circuit board 5 by fixing such as soldering.
[0051]
In the holder 15 configured as described above, when the product is no longer in a horizontal state due to an external factor such as an earthquake or a user's movement, the tilt switch 14 itself is tilted to the same degree as the tilt of the product. Therefore, it is possible to detect whether the product is tilted.
[0052]
Even if the printed circuit board 5 is installed not only in one direction but also in two directions,
By forming the shape of the slider 15 at an angle at which the tilt switch 14 is kept horizontal, the tilt switch 14 can accurately detect the degree of tilt.
[0053]
Furthermore, even if the printed circuit board 5 is installed in a vertical state and the tilt switch 14 has a shape for detecting the vertical state, the shape of the holder 15 is set so that the installation state of the tilt switch 14 is vertical. The above effect can be obtained.
[0054]
(Examples 7 and 8)
FIG. 6 shows an external view of a tilt detection apparatus in the seventh and eighth embodiments of the present invention. The description of the same reference numerals in the drawings is omitted.
[0055]
In this embodiment, the holder 15 is provided with a lower projection 20 to hold the lower surface of the printed circuit board 5 so that the printed circuit board 5 and the holder 15 are in close contact with each other. The holder 15 has an opening through which the contact terminal 16 of the tilt switch 14 passes, and the fitting surface on the tilt switch 14 side of the holder 15 has a shape that follows the shape of the fitting surface of the tilt switch 14. 14 and the holder 15 have a shape that does not affect the detection angle. Further, the mating surface of the holder 15 on the printed circuit board 5 side is inclined at the same degree as the installation angle of the printed circuit board 5 inside the product so as to eliminate the installation angle of the printed circuit board 5 inside the product.
[0056]
The fitting portion between the lower protrusion 20 of the holder 15 and the lower surface of the printed circuit board 5 has a shape along the lower surface of the printed circuit board 5 and has a fitting area where the holder 15 is not easily detached from the printed circuit board 5 (fitting portion). Is generally over 2mm square). The contact terminal 16 of the tilt switch 14 protrudes from the lower surface (printed circuit board 5 side) of the holder 15, is attached to the printed circuit board 5, and is brought into close contact with the printed circuit board 5 by fixing such as soldering.
[0057]
In the holder 15 configured as described above, when the product is no longer in a horizontal state due to an external factor such as an earthquake or a user's movement, the tilt switch 14 itself is tilted to the same degree as the tilt of the product. Therefore, it is possible to detect whether the product is tilted.
[0058]
Even when the printed circuit board 5 is installed not only in one direction but also in two directions, the inclination of the inclination switch 14 can be adjusted to an accurate degree of inclination by forming the shape of the holder 15 at an angle that keeps the inclination switch 14 horizontal. Can be detected.
[0059]
Furthermore, even if the printed circuit board 5 is installed in a vertical state and the tilt switch 14 has a shape for detecting the vertical state, the shape of the holder 15 is set so that the installation state of the tilt switch 14 is vertical. The above effect can be obtained.
[0060]
In the present embodiment, the holder 15 is described as a single lower protrusion 20 that holds the printed circuit board 5, but it goes without saying that a plurality of lower protrusions are the same.
[0061]
Example 9
FIG. 7 shows an external view of a tilt detecting apparatus according to the ninth embodiment of the present invention. The description of the same reference numerals in the drawings is omitted.
[0062]
In the present embodiment, a lower press-fit portion 21 that holds the side surface of the holder 15 is provided, and the holder 15 and the printed circuit board 5 are configured to be in close contact with each other. The holder 15 has an opening through which the contact terminal 16 of the tilt switch 14 passes, and the fitting surface on the tilt switch 14 side of the holder 15 has a shape that follows the shape of the fitting surface of the tilt switch 14. 14 and the holder 15 have a shape that does not affect the detection angle. Also, the holder 15
The mating surface on the printed circuit board 5 side is inclined at the same degree as the installation angle of the printed circuit board 5 inside the product so as to eliminate the installation angle of the printed circuit board 5 inside the product.
[0063]
In general, when the material of the printed circuit board is paper phenol, the printed circuit board hole diameter punched by the mold has a so-called drum-shaped cross section in which the paper phenol is pushed out during punching and is pushed out, and the hole diameter in the central portion is narrowed. The size of the lower press-fit portion 21 of the holder 15 is approximately the same as the side surface of the opening portion of the printed circuit board 5, and the holder 15 is caused by the rigidity of the lower press-fit portion 21 of the holder 15 and the friction with the cross section of the opening portion of the printed circuit board 5. Close to the printed circuit board 5.
[0064]
The contact terminal 16 of the tilt switch 14 protrudes from the lower surface (printed circuit board 5 side) of the holder 15, and the tilt switch 14 and the holder 15 are attached to the printed circuit board 5 as a tilt detection device integrally formed by the side surface holding portion 18 and soldered. The printed circuit board 5 is brought into close contact with each other by fixing it.
[0065]
In the holder 15 configured as described above, when the product is no longer in a horizontal state due to an external factor such as an earthquake or a user's movement, the tilt switch 14 itself is tilted to the same degree as the tilt of the product. Therefore, it is possible to detect whether the product is tilted.
[0066]
Even when the printed circuit board 5 is installed not only in one direction but also in two directions, the inclination of the inclination switch 14 can be adjusted to an accurate degree of inclination by forming the shape of the holder 15 at an angle that keeps the inclination switch 14 horizontal. Can be detected.
[0067]
Furthermore, even if the printed circuit board 5 is installed in a vertical state and the tilt switch 14 has a shape for detecting the vertical state, the shape of the holder 15 is set so that the installation state of the tilt switch 14 is vertical. The above effect can be obtained.
[0068]
【The invention's effect】
As described above, according to the first to ninth aspects of the present invention, the detection angle other than the general-purpose tilt switch can be detected by correcting the detection angle of the tilt degree of the tilt switch with the holder. Thus, it is possible to detect the tilt state more in line with the use state.
[0069]
In addition, since the tilt switch can accurately detect the degree of tilting without having to place the printed circuit board horizontally or vertically, the shape of the printed circuit board can be optimized to meet social demands for smaller and lighter products. Can do.
[0070]
In addition, the holder is equipped with a protrusion that makes contact with the tilt switch, the holder is provided with a protrusion that makes contact with the printed circuit board, and the holder is equipped with a protrusion that press-fits the side face of the tilt switch to make contact with the tilt switch. The substrate can be brought into contact with no gap, and the tilt detection performance can be prevented from being deteriorated due to misalignment between the holder and the tilt switch when correcting the detection angle of the tilt switch.
[Brief description of the drawings]
FIG. 1 is a side view of a tilt detection device according to first and second embodiments of the present invention.
FIG. 2 is an external perspective view of the apparatus when the printed circuit board is tilted in two directions.
FIG. 3 is a side view of a tilt detection device according to third and fourth embodiments of the present invention.
FIG. 4 is a side view of a tilt detection device according to a fifth embodiment of the present invention.
FIG. 5 is a side view of a tilt detection apparatus according to Embodiments 6 and 7 of the present invention.
FIG. 6 is a side view of a tilt detection apparatus according to an eighth embodiment of the present invention.
FIG. 7 is a side view of a tilt detection apparatus according to Embodiment 9 of the present invention.
FIG. 8A is a configuration diagram of a conventional spring pressure type tilt switch in a normal use state.
(B) Configuration diagram of the switch overturned
FIG. 9 is a front view of a conventional low power tilt switch.
FIG. 10 is a front view of another conventional low power tilt switch.
[Explanation of symbols]
5 Printed circuit board
14 Tilt switch
15 holder
17 Protrusion
18 Side holder
19 opening
20 Lower surface protrusion
21 Lower surface press-fit part

Claims (9)

A tilt switch that detects the inclination angle, and a holder for correcting the installation angle of the tilt switch, and a printed circuit board for securing the holder and the tilt switch, the holder opening contact terminals of the tilt switch is penetrated And a tilt detection device in which the tilt switch and the holder are attached to the printed circuit board by fixing the contact terminal of the tilt switch to the printed circuit board through the opening . The holder inclination detecting apparatus according to claim 1, characterized in that allowed to horizontal or vertical installation angle of the tilt switch. The holder inclination detecting apparatus according to claim 1 or 2 comprising comprises a protrusion allowed to close contact with the tilt switch. The holder inclination detecting apparatus according to claim 3 comprising comprising a projection allowed to closely hold the upper surface of the tilt switch. The holder inclination detecting apparatus according to claim 3 comprising comprising a projection allowed to closely pressed the sides of the tilt switch. The has another opening in one of the tilt switch or the holder, the inclination of claim 1 or 2 comprising comprises a closely allowed to projection to the other of the further opening of the tilt switch or said holder Detection device. The e Ruda inclination detecting apparatus according to any one of claims 1 to 6, comprising comprising a protrusion allowed to close contact with the printed circuit board. The holder inclination detecting apparatus according to claim 7 comprising comprising a projection allowed to closely hold the lower surface of the printed circuit board. The holder inclination detecting apparatus according to claim 7 comprising comprising a projection allowed to closely inserted into the opening of the printed circuit board.

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