Water meter reading device

Abstract

A water meter reading device disclosed in an embodiment of the invention comprises: a case, which has an accommodation space therein, the accommodation space having one side blocked and the other side opened; a cover coupled to the bottom of the other side of the case; an antenna substrate facing one side of the case in the accommodation space; a main battery facing the other side of the antenna substrate in the accommodation space; a holder, which is arranged in the accommodation space, supports the main battery and is coupled to the case; a capacitor arranged between the main battery and the holder; and a main board arranged between the holder and the cover and electrically connected to the antenna substrate and the battery, wherein the main battery can be arranged to be more adjacent to the one side than to the other side of the case.

Description

Water meter reading device

[0001] The invention relates to a water meter reading device.

[0002] The invention relates to a wireless metering device for a water meter.

[0003] In general, households and buildings are supplied with water, gas, and electricity. To measure usage and charge for these services, water, gas, and electricity meters are installed. Water meters, in particular, are buried deep in buildings to prevent damage from freezing and other causes, making meter reading inconvenient. To facilitate meter reading, meter readers install a meter reading device on top of the water meter, and connect it to a display such as a PDA, allowing meter readers to easily take pictures and read the meter from outside.

[0004] However, if the camera and the water meter reading area are close together, the usage numbers may not be captured, or even if captured, they may be difficult to verify. Furthermore, in dark environments, the above technology may not be usable or separate lighting may be required.

[0005] Furthermore, when a water meter reading device uses an external antenna for wireless communication, the external antenna protrudes, increasing the risk of damage and potentially causing uneven radiation characteristics when deformed. Furthermore, the external antenna increases the size of the water meter reading device and can restrict installation locations. Furthermore, separate assembly of the water meter reading device and the external antenna is required, which can lead to problems such as assembly defects.

[0006] Furthermore, water meters, due to their underground location, require waterproofing due to various environmental factors. Most water meters achieve this through molding. However, molding increases the weight of the water meter and makes it difficult to reuse.

[0007] An embodiment of the invention provides a water meter reading device having a novel built-in antenna capable of solving the above-described problems.

[0008] An embodiment of the invention provides a water meter reading device including an antenna substrate having a planar conductive pattern inside a case having a battery and a main substrate therein.

[0009] An embodiment of the invention provides a water meter reading device that communicates wirelessly through a case having a battery, a main board, and a communication antenna board therein.

[0010] An embodiment of the invention provides a water meter reading device that is reusable and has excellent waterproof function without internal molding treatment.

[0011] A water meter reading device according to an embodiment of the invention comprises: a case having a storage space therein, one side of the storage space being blocked and the other side being open; a cover coupled to the other side of the case; an antenna substrate facing one side of the case within the storage space; a main battery facing the other side of the antenna substrate within the storage space; a holder disposed within the storage space, supporting the main battery, and coupled to the case; a capacitor disposed between the main battery and the holder; and a main substrate disposed between the holder and the cover and electrically connected to the antenna substrate and the battery; wherein the main battery may be disposed closer to one side of the case than to the other side.

[0012] According to one embodiment of the invention, the case includes a first case portion extending in a cylindrical shape from one side of the case toward the other side; a connecting portion having a diameter larger than a diameter of the first case portion between the other end of the first case portion and the other side of the case; and a second case portion extending from the other end of the connecting portion toward the other side of the case; wherein the second case portion further includes a connector portion disposed on the outside of the second case portion, and a diameter of the other end of the connecting portion may be larger than a diameter of one end of the connecting portion.

[0013] According to one embodiment of the invention, the storage space includes a first storage space located inside the first case portion; and a second storage space located inside the connecting portion and the second case portion, wherein the second storage space may increase in size from top to bottom.

[0014] According to one embodiment of the invention, the antenna substrate and the main battery are arranged in the first storage space, at least one of the capacitor, the holder, and the main substrate is arranged in the second storage space, the antenna substrate is arranged at the uppermost portion of the first storage space, the capacitor is arranged between the holder and the main battery, and the main substrate may be arranged at the lowermost portion of the second storage space.

[0015] According to one embodiment of the invention, the connecting portion further includes a holder fastening portion protruding from the connecting portion into the second storage space and coupled with the holder, and a substrate fastening portion protruding from the connecting portion into the second storage space and coupled with the main substrate, and a lower portion of the substrate fastening portion may be positioned lower than a lower portion of the holder fastening portion.

[0016] According to one embodiment of the invention, the main substrate further includes a substrate penetration hole through which a fastening member passes; an antenna connection portion disposed on an upper side of the main substrate and electrically connected to the antenna substrate; a battery connection portion disposed on the other upper side of the main substrate and electrically connected to the main battery; and a connector connection portion disposed on a lower side of the main substrate and electrically connected to the connector portion, wherein the substrate penetration hole may be provided at a position corresponding to the substrate fastening portion.

[0017] According to one embodiment of the invention, the antenna device comprises: a first wire electrically connecting the antenna substrate and the antenna connection portion; and a second wire electrically connecting the main battery and the battery connection portion; wherein the length of the first wire may be longer than the length of the second wire.

[0018] According to one embodiment of the invention, the holder further includes a base portion formed in a plate shape; a mounting portion extending from one side of the base portion toward one side of the case and on which the capacitor is mounted; a guide portion further extending from the mounting portion toward one side of the case and supporting a lower circumference of the main battery; and a spacer contacting the lower portion of the main battery at one side of the mounting portion and spacing a lower surface of the main battery apart from a surface of the spacer; and the base portion may further include a base through hole provided at a position corresponding to the holder fastening portion.

[0019] According to one embodiment of the invention, the base portion includes a first groove provided at a position corresponding vertically to the substrate penetration hole; and a second groove guiding the first wire and the second wire; wherein the first groove and the second groove may be provided so as not to overlap the base penetration hole.

[0020] According to one embodiment of the invention, the spacer is provided in a plurality, the height of the mounting portion is lower than the height of the capacitor placed on the mounting portion, and the height of the upper portion of the spacer may be higher than the height of the upper portion of the capacitor.

[0021] According to one embodiment of the invention, the upper end of the guide piece may be elastic with respect to the lower end.

[0022] According to one embodiment of the invention, the first case portion includes a first wire guide portion having a groove extending vertically from one side of the inner surface of the first case portion and on which the first wire is seated; and a second wire guide portion having a groove extending vertically from the other side of the inner surface of the first case portion and on which the second wire is seated; and the first wire guide portion may have a length longer than the length of the second wire guide portion.

[0023] According to one embodiment of the invention, the second case portion includes a convex portion arranged on the lower periphery of the second case portion and arranged from the inner surface of the second case portion toward the outer surface, the convex portion includes a first convex portion adjacent to the inner surface of the second case portion and a second convex portion adjacent to the outer surface of the second case portion, and a horizontal length of the second convex portion may be thicker than a horizontal length of the first convex portion.

[0024] According to one embodiment of the invention, the cover is provided in a circular shape, and the cover includes a recessed portion arranged around a radially outer end of the cover and arranged from the inner surface toward the outer surface, and the recessed portion includes a first recessed portion arranged to correspond to the first convex portion and a second recessed portion arranged to correspond to the second convex portion, and a horizontal length of the second recessed portion may be thicker than a horizontal length of the first recessed portion.

[0025] According to one embodiment of the invention, the surface where the lower surface of the first portion and the cover come into contact, and the surface where the lower surface of the second portion and the cover come into contact, can be joined.

[0026] According to the water meter reading device of the embodiment of the invention, by having a small built-in antenna, the risk of antenna damage can be eliminated and deterioration of antenna characteristics due to damage can be prevented.

[0027] According to the water meter reading device of the embodiment of the invention, the size of the reading device can be reduced, thereby reducing restrictions on installation space.

[0028] According to the water meter reading device of the embodiment of the invention, by electrically connecting the communication antenna substrate and the main substrate inside the case, antenna failure due to assembly can be prevented, and communication failure can be eliminated.

[0029] According to an embodiment of the invention, the reliability of a wireless meter reading device of a water meter can be improved.

[0030] According to an embodiment of the invention, the weight of the water meter reading device can be reduced and reassembly can be made possible.

[0031] According to an embodiment of the invention, the manufacturing process of a water meter reading device can be facilitated.

[0032]

[0033] Figure 1 is a block diagram showing a water meter reading device according to an embodiment of the invention.

[0034] Fig. 2 is a perspective view showing a water meter reading device according to an embodiment of the invention.

[0035] Figure 3 is an exploded view of a water meter reading device according to an embodiment of the invention.

[0036] Fig. 4 is a front cross-sectional view of a water meter reading device according to an embodiment of the invention.

[0037] FIG. 5 is a side cross-sectional view of a water meter reading device according to an embodiment of the invention.

[0038] Fig. 6 is a drawing showing the structure of a holder of a water meter reading device according to an embodiment of the invention.

[0039] Figure 7 is a cross-sectional view of 7-7` of Figure 6(b).

[0040] Figure 8 is an enlarged view of part A of Figure 4.

[0041] Hereinafter, preferred embodiments of the invention will be described in detail with reference to the attached drawings.

[0042] The technical idea of ​​the present invention is not limited to some of the embodiments described, but can be implemented in various different forms, and within the scope of the technical idea of ​​the present invention, one or more of the components between the embodiments can be selectively combined or substituted and used. In addition, the terms (including technical and scientific terms) used in the embodiments of the present invention can be interpreted as having a meaning that can be generally understood by a person of ordinary skill in the technical field to which the present invention belongs, unless explicitly specifically defined and described, and the meaning of commonly used terms, such as terms defined in a dictionary, can be interpreted in consideration of the contextual meaning of the related technology. In addition, the terminology used in the embodiments of the present invention is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular may also include the plural unless specifically stated in the phrase, and when it is described as A and / or at least one (or more than one) of B and C, it may include one or more of all combinations that can be combined with A, B, and C. In addition, when describing components of embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish the components from other components, and the nature, order, or sequence of the components are not determined by the terms. In addition, when it is described that a component is 'connected', 'coupled', or 'connected' to another component, the component may include not only cases where the component is directly connected, coupled, or connected to the other component, but also cases where the component is 'connected', 'coupled', or 'connected' by another component between the component and the other component.Additionally, when described as being formed or arranged "above or below" each component, "above" or "below" includes not only cases where the two components are in direct contact with each other, but also cases where one or more other components are formed or arranged between the two components. Furthermore, when expressed as "above" or "below," it can include the meaning of a downward direction as well as an upward direction based on one component.

[0043] FIG. 1 is a block diagram showing a water meter reading device according to an embodiment of the invention.

[0044] Referring to FIG. 1, the water meter reading device (10) is a wireless reading device that can remotely transmit reading information received from a digital meter (20), which is a water meter, at the request of a meter reader or a reading device, thereby detecting tap water usage at a remote location. In addition, the water meter reading device (10) can transmit / receive reading control information to / from the digital meter (20) based on information received under the control of the meter reader or the reading device.

[0045] The connector (115) of the above water meter reading device (10) is connected to the digital meter (20) via a signal cable. The above water meter reading device (600) includes a main board (600) connected to the connector unit (115), a battery (300) as a power supply unit, a charging / discharging unit (400), and an antenna board (200). The battery (300) may be defined as a main battery (300), and the charging / discharging unit (400) may be defined as a capacitor (400).

[0046] The main board (600) above serves as a control unit and controls the main battery (300) and capacitor (400) to stably supply power. In addition, the main board (600) is connected to a digital meter (20) through a connector unit (115) and communicates with the digital meter (20) to receive metering information such as tap water usage or control the digital meter (20). The main board (600) is electrically connected to the antenna board (200) and controls transmission and reception of wireless communication signals.

[0047] The above charging / discharging unit (400) includes a capacitor and controls charging and discharging of the battery (300) to supply power required for each component.

[0048] The above antenna substrate (200) is electrically connected to the main substrate (600) and communicates wirelessly with the outside. When a metering request is received from the outside, the antenna substrate (200) transmits the metering information acquired through the main substrate (600). The antenna substrate (200) can be connected via at least one or more of Bluetooth communication and low-speed or high-speed wireless Internet. The low-speed Internet may include a LoRa network, and the high-speed Internet may include LTE (Long Term Evolution).

[0049] Since the above-mentioned water meter reading device (10) is installed underground or outdoors, waterproofing is required to protect the internal circuit performance. That is, if moisture or water penetrates the device, various components may be damaged or communication failures may occur due to short circuits between internal circuits. If such problems occur, product reliability may be reduced. The embodiment of the invention can solve waterproofing or water leakage problems by isolating the inside and outside of the water meter reading device (10) from each other, thereby preventing circuit short circuits or communication failures.

[0050] FIG. 2 is a perspective view showing a water meter reading device according to an embodiment of the invention, FIG. 3 is an exploded view of a water meter reading device according to an embodiment of the invention, and FIG. 4 is a front cross-sectional view of a water meter reading device according to an embodiment of the invention.

[0051] Referring to FIGS. 2 and 4, the water meter reading device (10) may include the case (100), a cover (150) coupled to the bottom of the case (100), an upper clamp (170) coupled to the outside of the case (100), a main battery (300) arranged within the case (10) to supply power, a capacitor (400) connected to the main battery to perform a charge / discharge function, a main board (600), and an antenna board (200).

[0052] The case (100) may be made of an opaque material, for example, a plastic material. The case (100) may be made of a material that absorbs laser light rather than transmitting it.

[0053] The case (100) may include a first case portion (110) forming the upper portion of the case, a second case portion (130) forming the lower portion of the case, a connecting portion (120) connecting the first case portion (110) and the second case portion (130), and a cover (150) coupled to the bottom of the case (100).

[0054] The case (100) may have storage spaces (101, 102) in which components are stored. The storage spaces (101, 102) may include a first storage space (101) formed at an upper portion of the case (100) and a second storage space (102) formed at a lower portion of the case (100). That is, the case (100) may have one side closed and the other side open. The size of the second storage space (105) may increase from the upper portion to the lower portion of the second storage space (105). The other side of the case (100) may be closed by the cover (150).

[0055] The first case portion (110) may form the upper portion of the case (100). The first case portion (110) may extend in a cylindrical shape from one side of the case (100) toward the other side. The upper surface of the first case (110) may be blocked. The first storage space (101) may be formed by the first case portion (110). The antenna substrate (200) and the main battery (300) may be stored in the first storage space (101).

[0056] The circumference of the first case portion (110) may be provided with a screw thread (115) to which the upper clamp (170) and the lower clamp (190) can be coupled. The lower clamp (190) is fastened through the first case portion (110), and then the upper clamp (170) is fastened while being spaced apart from the lower clamp (190). In this case, a part of a housing that protects the outside of the metering device (10) is fitted between the upper clamp (170) and the lower clamp (190), and the lower clamp (190) can be rotated to fix the metering device (10) and expose the upper end of the case (100).

[0057] The inner surface of the first case portion (110) may be provided with a first wire guide portion (117) for guiding a first wire (210) to be described later. The first wire guide portion (117) may include a groove extending vertically from one side of the inner surface of the first case portion (110).

[0058] The inner surface of the first case portion (110) may further include a second wire guide portion (118) for guiding a second wire (210) to be described later. The second wire guide portion (118) may include a groove extending vertically from the other side of the inner surface of the first case portion (110).

[0059] The above-mentioned connecting portion (120) may be connected to the lower end of the first case portion (110) and may be extended radially as it extends toward the lower end of the connecting portion (120). That is, the diameter of the connecting portion (120) may be larger than the diameter of the first case (110) as it moves toward the other side or lower surface of the case (100). For example, the connecting portion (120) may have a truncated cone shape.

[0060] The second storage space (102) can be formed by the above-described connecting portion (120) and the second case portion (130) to be described later. The capacitor (400), the holder (500) supporting the capacitor, and the main board (600) can be stored in the second storage space (102).

[0061] The above-described connecting portion (120) may include a holder fastening portion (121) to which the holder (500) may be fixed. The holder fastening portion (121) may protrude from the connecting portion (120) into the second storage space (102). A fastening member (50) may be coupled to the holder fastening portion (121). The holder fastening portion (121) may be provided in multiple numbers. For example, two or more or three or more holder fastening portions (121) may be arranged spaced apart from each other.

[0062] The above-mentioned connecting portion (120) may further include a main substrate fastening portion (122) to which the main substrate (600) is fastened. The main substrate (600) may protrude into the second storage space (102). The main substrate fastening portion (122) may be provided so as not to overlap with the holder fastening portion (121). A fastening member (50) may be coupled to the substrate fastening portion (122). The main substrate fastening portion (122) may be formed in multiple pieces. For example, two or more or three or more main substrate fastening portions (122) may be arranged to be spaced apart from each other.

[0063] The second case portion (130) may form the lower portion of the case (100). The second case portion (130) may extend from the lower portion of the connection portion (120) to the other side or lower surface of the case (100). That is, the lower portion of the second case portion (130) may be the other side or lower surface of the case (100). The cover (150) may be coupled to the lower portion of the second case portion (130).

[0064] The outer diameter or diameter of the second case portion (130) may gradually increase as it extends toward the other side or lower surface of the case (100). That is, the radius from the central axis of the case may increase from the top to the bottom of the second case portion (130). For example, the second case portion (130) may have a truncated cone shape. The angle of the inclined surface of the second case portion (130) may not be greater than the angle of the inclined surface of the connecting portion (130).

[0065] The second case portion (130) can form the second storage space (102) together with the connecting portion (120).

[0066] A connector portion (135) to which a connector is connected may be provided on one side of the second case portion (130). The connector portion (135) may protrude radially outwardly from the second case portion (130). The connector portion (135) may be integrally molded with the case (100). A connector pin (135B) may protrude from the connector portion (135) toward the inside of the second case portion (130). The connector pin (135B) may be connected to a connector connection portion (530) included in a main board (600) to be described later. A connector cover (137) covering the connector portion (135) may be provided on the connector portion (135).

[0067] FIG. 5 is a side cross-sectional view of a water meter reading device according to one embodiment of the present invention, FIG. 6 is a drawing showing in detail a holder, a main board, and a cover of a water meter reading device according to one embodiment of the present invention, and FIG. 7 is a cross-sectional view taken along line 7-7` of FIG. 6(b).

[0068] Referring to FIGS. 4 to 7, a water meter reading device (10) according to one embodiment of the present invention may be sealed by having the antenna substrate (200), the main battery (300), the capacitor (400), the holder (500) and the main substrate (600) stored in the case (10) in that order, and then the cover (150) is combined with the lower end of the second case portion (130).

[0069] The antenna substrate (200) may be positioned at the upper end of the first storage space (102). The antenna substrate (200) may be disposed to face one side of the case (100). In detail, the antenna substrate (200) may be disposed adjacent to and facing the upper surface of the first case portion (110). The first case portion (110) may include an antenna substrate coupling portion (112) for fixing the antenna substrate (200). The antenna substrate coupling portion (112) may include a protruding rib protruding from the inner circumferential surface of the first case portion (110). In addition, the antenna substrate coupling portion (112) may be formed in multiple pieces, and may be integrally formed along the inner circumferential surface of the first case portion (110).

[0070] The above antenna substrate (200) may be electrically connected to the main substrate (600). A first wire (201) may be provided to electrically connect the antenna substrate (200) and the main substrate (600). After the first wire (201) is bonded to the antenna substrate (200), the antenna substrate (200) may be stored in the first storage space (102).

[0071] The main battery (300) may be stored after the antenna substrate (200) is stored in the first storage space (102). The main battery (300) may have a cylindrical shape. As another example, the main battery (300) may have a polygonal columnar shape.

[0072] The main battery (300) may be arranged adjacent to the other surface of the antenna substrate (200). The inner circumferential surface of the first case portion (110) may include a catch (113) provided to prevent the main battery (300) from colliding with the antenna substrate (200) when it is stored in the first storage space (101). The main battery (300) may be restricted from moving upward by the catch (113) of the first case portion (110). The antenna substrate (200) and the main battery (300) may be spaced apart by the catch (113). The catch (113) may be formed in multiple pieces. The catch (113) and the antenna substrate coupling portion (112) may be formed integrally.

[0073] The main battery (300) may be electrically connected to the main board (600). A second wire (301) may be provided to electrically connect the main battery (300) and the main board (600). After the second wire (301) is connected to the main battery (300), it may be stored in the first storage space (102).

[0074] The capacitor (400) may be placed between the main battery (300) and the holder (500). The capacitor (400) may have a cylindrical shape or a polygonal column shape, and may be a sub-battery. The capacitor (400) may be electrically connected to the main battery (300). The capacitor (400) may be mounted on the holder (500) and stored in the second storage space (102).

[0075] The holder (500) may include a base portion (510) in the shape of a disk, a mounting portion (530) on which the capacitor (400) is mounted, and a guide piece (540) that supports the main battery.

[0076] The base portion (510) may include a base penetration hole (512) through which the fastening member (50) may pass. The base penetration hole (512) may be positioned at a position corresponding to the holder fastening portion (121). A plurality of the base penetration holes (512) may be formed. For example, two or more or three or more of the base penetration holes (512) may be provided spaced apart from each other.

[0077] The fastening member (50) penetrating the base penetration hole (512) is combined with the holder fastening part (121) so that the holder (500) can be fixed upward to the main battery (300).

[0078] The above base portion (510) may include a groove (511) formed at a position corresponding to a through hole (601) of the main substrate (600) to be described later. That is, the groove (511) may be formed to correspond to the number of through holes (601) of the main substrate. The groove (511) and the base through hole (512) may be arranged so as not to overlap.

[0079] The base portion (510) may include a second groove (512) that guides the first and second wires (201, 301) to be connected to the antenna connection portion (610) and the battery connection portion (620) of the main substrate (600), respectively. The second groove (512) may be formed to correspond to the positions of the antenna connection portion (610) and the battery connection portion (620) provided on the main substrate (600), respectively. The first wire (201) and the second wire (301) may be respectively seated in the second groove (512).

[0080] The mounting portion (530) may be provided on the upper surface of the base portion (510). The mounting portion (530) may include a first mounting portion (530A), a second mounting portion (530B), and a mounting groove (531). The mounting groove (531) may be arranged between the first mounting portion (530A) and the second mounting portion (530B). The capacitor (400) may be arranged in the mounting groove (531). The capacitor (400) may be fixed by the first mounting portion (530A), the second mounting portion (530B), and the mounting groove (531). In detail, the first mounting portion (530A) and the second mounting portion (530B) may fix both sides of the capacitor (530) in the first direction. The above-described fixing portion (530) may further include a support step portion (520) for fixing both sides of the capacitor (530) in a second direction orthogonal to the first direction. The support step portion (520) may be formed lower than the height of the fixing portion (530). As a result, the capacitor (400) may be partially exposed in the second direction.

[0081] The height of the upper part of the above-mentioned mounting portion (530) may be lower than the height of the capacitor (400) when the capacitor (400) is placed in the above-mentioned mounting groove (531).

[0082] A spacer (550) for spacing the main battery (200) and the capacitor (400) apart from each other may be placed on the upper surfaces of the first mounting portion (530A) and the second mounting portion (530B). The spacers (550) may be formed in multiple pieces and may be placed correspondingly based on the mounting groove (531). The height of the upper portion of the spacer (550) may be higher than the height of the upper portion of the capacitor (400).

[0083] The above guide piece (540) may be formed to extend upward from the outer surface of the above mounting portion (530). The above guide piece (540) may be formed on the outer surfaces of the first mounting portion (530A) and the second mounting portion (530B), respectively. The above guide piece (540) may be formed so as not to overlap vertically with the above mounting groove (531).

[0084] The inner diameter of the above guide piece (540) may be larger than the outer diameter of the main battery (300), and the outer diameter of the above guide piece (540) may be smaller than the inner diameter of the first case part (130). As a result, the above main battery (300) may be fixed to the above guide piece (540) and accommodated inside the above first case part (130).

[0085] The above guide piece (540) may extend into the first storage space (101) to support the main battery (300). The upper end of the guide piece (540) may have elasticity with respect to the lower end of the guide piece (540).

[0086] The main substrate (600) may be positioned closer to the other side of the case (100) or the cover (150) than the holder (500). The main substrate (600) may have a shape in which a portion is cut out of a circular shape. The position where the connector connection portion (630) is positioned may be cut out.

[0087] The main substrate (600) may include an antenna connection portion (610) electrically connected to the antenna substrate. The antenna connection portion (610) may be connected to the antenna substrate (200) via the first wire. The main substrate (600) may include a battery connection portion (620) electrically connected to the main battery. The battery connection portion (620) may be connected via the second wire.

[0088] The above main board (600) may include a connector connection portion (630) connected to the connector portion (135). The connector portion (135) and the connector connection portion (630) may be electrically connected by a connector pin (135B).

[0089] The main substrate (600) may include a substrate penetration hole (601) through which the substrate fastening portion (122) and the fastening member (?) pass. The substrate penetration holes (601) may be formed in multiple numbers. The fastening member passing through the substrate fastening portion (601) may be coupled with the substrate fastening portion (122) and may fix the main substrate (600) to the case (100). The substrate fastening portion (122) may be positioned so that the lower end of the substrate fastening portion (122) is positioned lower than the lower end of the holder fastening portion (121) so as to be spaced apart from the main substrate (600) and the holder (500). That is, the lower end of the substrate fastening portion (122) may be closer to the other side or the lower end of the case (100) than the lower end of the holder fastening portion (121).

[0090] Figure 8 is an enlarged view of part A of Figure 4 where the cover and the second component storage unit are combined.

[0091] Referring to Fig. 8, the cover (150) can be coupled to the lower end of the second case portion (130). The second case portion (130) can include a convex portion (131) formed along the lower periphery of the second case portion (130). The convex portion (131) can include a first convex portion (131A) disposed adjacent to the second storage space (102) and a second convex portion (131B) disposed adjacent to the outer circumference of the second case portion (130).

[0092] The cover (150) may include a recessed portion (151) formed along the upper periphery of the cover (150). The recessed portion (151) may be formed at a position corresponding to the protruding portion (131). The recessed portion (151) may include a first recessed portion (151A) positioned adjacent to the second storage space (102) and a second recessed portion (151B) positioned adjacent to the outer circumference of the second case portion (130).

[0093] The first yoke (151A) may be arranged to correspond to the first iron portion (131A), and the second yoke (151B) may be arranged to correspond to the second iron portion (131B). The first yoke (151A) and the first iron portion (131A) may be in direct contact, and the second yoke (151B) and the second iron portion (131B) may be in direct contact.

[0094] The surface where the first yoke (151A) and the first ferrous portion (131A) come into contact and the surface where the second yoke (151B) and the second ferrous portion (131B) come into contact can be joined. For example, the surface where the first yoke (151A) and the first ferrous portion (131A) come into contact and the surface where the second yoke (151B) and the second ferrous portion (131B) come into contact can be joined through a brazing process.

[0095] The horizontal length of the second iron portion (131B) may be longer than the horizontal length of the first iron portion (131A). This allows it to withstand the pressure of fluid applied from the outside.

[0096] The horizontal length of the second portion (151B) may be longer than the horizontal length of the second portion (151A). This allows it to withstand the pressure of a fluid applied from the outside.

[0097] The waterproof function can be excellent due to the brazing joint between the cover (150) and the second case portion (130). Therefore, the water meter reading device according to one embodiment of the present invention can be easily manufactured because there is no molding process for sealing. In addition, the absence of a molding process has the advantage of making the water meter reading device light and allowing the internal components to be reused.

[0098] [Explanation of symbols]

[0099] 10: Water meter reading device

[0100] 100: Case

[0101] 110: Case 1

[0102] 120: Connection

[0103] 130: Case 2

[0104] 150: Cover

[0105] 170: Upper clamp

[0106] 190: Lower clamp

[0107] 200: Antenna board

[0108] 300: Main battery

[0109] 400: Capacitor

[0110] 500: Holder

[0111] 600: Main board

[0112] The embodiment can be adopted in a water meter reading device for measuring water usage and a wireless reading device for a water meter.

Claims

1. A case having a storage space inside, one side of the storage space being blocked and the other side being open; A cover coupled to the other side of the above case; An antenna substrate facing one side of the case within the storage space; A main battery facing the other side of the antenna substrate within the storage space; A holder disposed within the storage space, supporting the main battery and coupled with the case; A capacitor disposed between the main battery and the holder; and A main substrate disposed between the holder and the cover and electrically connected to the antenna substrate and the battery; A water meter reading device in which the main battery is positioned closer to one side of the case than the other side.

2. In paragraph 1, The above case is, A first case portion extending in a cylindrical shape from one side of the case to the other side; A connecting portion having a diameter larger than the diameter of the first case portion between the other end of the first case portion and the other side of the case; and A second case portion extending from the other end of the above connecting portion toward the other side of the case; The second case portion further includes a connector portion arranged on the outside of the second case portion, A water meter reading device in which the diameter of one end of the above-mentioned connecting portion is larger than the diameter of the other end of the above-mentioned connecting portion.

3. In paragraph 2, The above storage space is, A first storage space located inside the first case portion; and It includes a second storage space located inside the above connecting portion and the second case portion, The above second storage space is a water meter reading device that increases from top to bottom.

4. In paragraph 3, The antenna substrate and the main battery are placed in the first storage space, At least one of the capacitor, the holder, and the main board is placed in the second storage space. A water meter reading device in which the antenna substrate is placed at the top of the first storage space, the capacitor is placed between the holder and the main battery, and the main substrate is placed at the bottom of the second storage space.

5. In paragraph 2, The above connection part is, A holder fastening portion protruding from the above connecting portion into the second storage space and coupled with the holder; and It further includes a substrate fastening portion that protrudes from the above connecting portion into the second storage space and is combined with the main substrate, A water meter reading device in which the lower part of the substrate fastening part is positioned lower than the lower part of the holder fastening part.

6. In paragraph 5, The above main board is, A substrate penetration hole through which a fastening member passes; An antenna connection portion disposed on one upper side of the main substrate and electrically connected to the antenna substrate; A battery connection portion positioned on the upper side of the main board and electrically connected to the main battery; It further includes a connector connection portion that is arranged on the lower portion of the main board and is electrically connected to the connector portion, A water meter reading device in which the above substrate penetration hole is provided at a position corresponding to the above substrate fastening portion.

7. In paragraph 2, The above holder, A base formed in the shape of a plate; A mounting portion extending from one side of the base portion toward one side of the case and on which the capacitor is mounted; A guide piece extending further from the above mounting portion toward one side of the case and supporting the lower circumference of the main battery; and Further comprising a spacer that contacts the lower portion of the main battery on one side of the mounting portion and separates the lower surface of the main battery from the surface of the capacitor; A water meter reading device, wherein the base portion further includes a base penetration hole provided at a position corresponding to the holder fastening portion.

8. In paragraph 2, The above second case part, It is arranged on the lower periphery of the second case part and includes a convex part arranged from the inner surface of the second case part toward the outer surface, The above convex portion includes a first convex portion adjacent to the inner surface of the second case portion and a second convex portion adjacent to the outer surface of the second case portion, A water meter reading device in which the horizontal length of the second iron section is thicker than the horizontal length of the first iron section.

9. In paragraph 8, The above cover is provided in a circular shape, The above cover is arranged around the radially outer end of the cover and includes a concave portion arranged from the inner side toward the outer side, The above-mentioned recessed portion includes a first recessed portion arranged to correspond to the first iron portion and a second recessed portion arranged to correspond to the second iron portion, A water meter reading device in which the horizontal length of the second section is thicker than the horizontal length of the first section.

10. In paragraph 9, The surface where the lower surface of the first part and the cover are in contact, and A water meter reading device in which the lower surface of the second part and the surface where the cover is in contact are joined.

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