WO2024101904A1

WO2024101904A1 - Electric toothbrush for companion animal and coupling structure thereof

Info

Publication number: WO2024101904A1
Application number: PCT/KR2023/017927
Authority: WO
Inventors: 김영욱
Original assignee: 주식회사 프록시헬스케어
Priority date: 2022-11-09
Filing date: 2023-11-09
Publication date: 2024-05-16
Also published as: KR20240067481A

Abstract

The present invention relates to an electric toothbrush for a companion animal, comprising: a head unit; and a handle unit which is detachably coupled to the head unit and supplies a driving voltage to the head unit according to the control of a user.

Description

Electric toothbrush for pets and combined structure thereof

The present invention relates to an electric toothbrush for companion animals, and more specifically, to an electric toothbrush for companion animals that can effectively remove dental plaque.

Dental plaque is a sticky, transparent film that sticks to the surface of the teeth. It is formed when numerous bacteria living in the mouth cling to certain components in saliva and form on the teeth and around them.

When a very thin and transparent membrane-like plaque is created, the bacteria inside it multiply. Using the sugar supplied when eating food, the bacteria inside the plaque increase exponentially and the amount increases. Acidic substances produced by bacteria in plaque dissolve the limestone in the teeth, causing cavities, and toxins cause inflammation in the gums.

The plaque itself is not visible to the naked eye, and occurs mainly in places where there are deep grooves in the teeth, between teeth, and in narrow gaps between teeth and gums. It is important to remove plaque without missing every nook and cranny because it can cause problems to teeth and surrounding tissues in such a narrow space.

Removal of this plaque is important not only for humans but also for pets. However, there is a problem that it is difficult to effectively remove plaque because pets do not brush their teeth sufficiently due to their reluctance to brush their teeth and limited patience.

The purpose of the present invention, which was devised to solve the above-mentioned problems, is to provide an electric toothbrush for companion animals that can be used by replacing the head portion where the toothbrush bristles are located.

Another object of the present invention is to provide an electric toothbrush for companion animals that can prevent the occurrence of cavities and periodontal disease by removing dental plaque.

In addition, another object of the present invention is to provide an electric toothbrush for companion animals that can be easily assembled.

Another object of the present invention is to provide an electric toothbrush for companion animals in which a head unit and a handle unit can be firmly coupled.

An electric toothbrush for companion animals according to an embodiment of the present invention includes a head unit and a handle unit detachably coupled to the head unit and supplying a driving voltage to the head unit under user control, the handle unit is an insertion member including a column-shaped base portion and one or more protrusions protruding from a peripheral surface of the base portion, and a portion thereof is positioned to protrude outward from the insertion member, and when the head unit and the handle unit are coupled. It includes a connection terminal electrically connected to the head unit, wherein the head unit is formed to be open at both ends and includes a receiving portion formed to surround the periphery of the insertion member, and a receiving portion into which the insertion member is inserted. A bracket member formed at an end and including a guide portion that guides the movement path of the protrusion so that the protrusion moves a predetermined distance in the longitudinal direction of the receiving portion and then moves in a direction perpendicular to the longitudinal direction, and the interior of the head unit. is located, one end is located adjacent to the open one end of the accommodating part, and when the handle unit and the head unit are coupled, it may include an electrode electrically connected to the connection terminal.

In addition, the guide portion of the bracket member is formed on the inner wall of the receiving portion, and is formed on the inner wall of the receiving portion and a first guide groove formed to be retracted to a size corresponding to the protrusion along the longitudinal direction of the receiving portion, It is connected to the first guide groove and may include a second guide groove formed to be retracted to a size corresponding to the protrusion along a direction perpendicular to the first guide groove.

Additionally, there are two protrusions, and each of the two protrusions may be located on opposite sides of each other.

In addition, the handle unit includes a handle housing coupled to the insertion member, a battery installed in the handle housing, a circuit board on which a signal supply unit for generating a driving voltage using the voltage of the battery is mounted, and a non-conductive material. , It may include a separation prevention member that prevents the connection terminal from being separated from the insertion member, and a first fastening member that fastens the separation prevention member and the insertion member to each other.

In addition, the handle unit includes a handle housing coupled to the insertion member, a battery installed in the handle housing, a circuit board on which a signal supply unit for generating a driving voltage using the voltage of the battery is mounted, and a non-conductive material. , is received inside the insertion member, and includes a coupling member to which the connection terminal is coupled, and a second fastening member for fastening the handle housing and the insertion member to each other, and one end of the connection terminal is connected to the coupling member through the coupling member. It is installed to be exposed in the direction toward the circuit board, and the other end may be installed to be exposed to the outside through an exposure hole formed in the insertion member.

In addition, the handle unit is installed on the circumferential surface of the insertion member, a first sealing member sealing between the insertion member and the head unit, and interposed between the insertion member and the handle housing, and the insertion member and the head unit. It may further include a second sealing member that seals between the handle housings.

In addition, the head unit includes a head housing having toothbrush bristles formed on one side and a seating portion on which the electrode is seated on the other side, a fixing member installed to be in close contact with the electrode while the electrode is seated on the seating portion, and It may include a third fastening member that fastens the fixing member and the head housing to each other, and a sealing member that seals the seating portion.

Additionally, a locking protrusion may be formed on a portion of the fixing member that contacts the bracket member, and a fixing groove into which the locking protrusion is inserted may be formed on the bracket member.

In addition, the electrode includes a first electrode and a second electrode, and each of the first electrode and the second electrode has one end positioned adjacent to the toothbrush bristles of the head housing and the other end positioned adjacent to the bracket member. a middle portion, extending from an end located on the toothbrush bristles in the middle portion, a head portion with an end exposed to the outside, and extending from an end located adjacent to the bracket member in the middle portion, and a portion of the bracket member It is positioned to be exposed through the open end of and may include a contact portion that comes into contact with the connection terminal when the handle unit and the head unit are combined.

In addition, the length of the middle portion of the first electrode and the middle portion of the second electrode is such that the head portion of the first electrode and the head portion of the second electrode are positioned on the same line and spaced apart from each other along the longitudinal direction of the head housing. may be different from each other.

Additionally, the head housing may be tapered from a portion adjacent to the handle unit to a portion where the toothbrush bristles are located.

Additionally, the surface of the head housing where the toothbrush bristles are located may be inclined.

The combination structure of the electric toothbrush for pets according to an embodiment of the present invention includes a mutually detachable head unit and a handle unit, wherein the handle unit is an insert having a plurality of protrusions. It includes a first connection terminal and a second connection terminal exposed to the outside through the member and the insertion member, and the head unit includes a bracket member located at a coupling portion with the handle unit, and a portion of the head unit passes through the bracket member. It includes a first electrode and a second electrode positioned to be exposed to the outside, wherein the bracket member includes a receiving portion into which the insertion member is inserted, and a guide portion that guides the movement path of the protrusion, and the guide portion includes the protrusion. It includes a first guide groove that moves along the longitudinal direction of the receiving portion, and a second guide groove that allows the protrusion to move in a direction perpendicular to the longitudinal direction of the receiving portion, and the plurality of protrusions have a first guide groove. moves along, and then when the handle unit rotates with respect to the head unit, the plurality of protrusions move along the second guide groove, the first connection terminal contacts the first electrode, and the first connection terminal contacts the first electrode. 2 The connection terminal may be in contact with the second electrode.

According to the present invention as described above, when the head unit needs to be replaced, it is possible to provide an electric toothbrush for pets that can be used by separating the head unit from the handle unit and easily replacing it with a new head unit.

Additionally, according to the present invention, an electric toothbrush for companion animals capable of effectively removing dental plaque can be provided.

In addition, according to the present invention, it is possible to provide an electric toothbrush for companion animals that can prevent the occurrence of cavities and periodontal disease by removing dental plaque.

In addition, according to the present invention, an electric toothbrush for companion animals can be provided in which the handle unit and the head unit can be stably maintained in a coupled state without being separated by external force while the protrusion of the insertion member extends over the guide portion of the bracket member. .

In addition, according to the present invention, it is possible to provide an electric toothbrush for companion animals that can prevent moisture from entering from the outside.

In addition, according to the present invention, it is possible to provide an electric toothbrush for companion animals whose assembly time can be shortened compared to a conventional electric toothbrush for companion animals.

Figure 1 is a perspective view showing an electric toothbrush for companion animals according to an embodiment of the present invention.

Figure 2 is a perspective view showing a state in which a head unit and a handle unit included in an electric toothbrush for pets according to an embodiment of the present invention are combined.

Figure 3 is an exploded perspective view showing the handle unit of Figure 2.

FIG. 4 is an exploded perspective view illustrating how the separation prevention member in the handle unit of FIG. 2 is coupled to the insertion member by the first fastening member.

Figure 5 is an enlarged perspective view showing a portion where the insertion member is located in the handle unit according to a modified example.

Figure 6 is an exploded perspective view showing a handle unit according to a modified example.

Figure 7 is an exploded perspective view showing the head unit of Figure 2.

FIG. 8 is a diagram illustrating a process in which an electrode is seated on the head housing in the head unit of FIG. 7.

Figure 9 is a diagram for explaining the joining process of the insertion member and the bracket member.

Figure 10 is a cross-sectional view showing the head unit and the handle unit combined.

FIG. 11 is a view viewed from a third direction with the waterproof member and sealing member removed from the head unit of FIG. 7.

FIG. 12 is a view of the head unit of FIG. 2 viewed from a first direction.

FIG. 13 is a view of the head unit of FIG. 2 viewed from the side and front.

Figure 14 is a diagram showing a signal supply unit mounted on a circuit board.

Figures 15 to 17 are diagrams showing the waveform of a signal according to an embodiment of the present invention.

Figures 18 and 19 are diagrams to explain the biofilm removal effect of a driving signal generated by mixing AC signals and DC signals.

Figures 20 and 21 are diagrams showing modified examples of the signal supply unit.

Hereinafter, embodiments related to the present invention will be illustrated in the drawings and described in detail through detailed description. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. .

In describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only used to distinguish the component from other components, and the nature, sequence, or order of the component is not limited by the term. Additionally, in this specification, when a component is described as being “connected,” “coupled,” or “connected” to another component, the component may be directly connected or connected to the other component, but each component It should be understood that another component may be “connected,” “coupled,” or “connected” between elements. In the case of “connection”, “coupling” or “connection”, it is understood as being physically “connected”, “coupled” or “connected” as well as being electrically “connected”, “coupled” or “connected” as required. It can be.

Hereinafter, an electric toothbrush for companion animals according to an embodiment of the present invention will be described with reference to drawings related to embodiments of the present invention.

Figure 1 is a perspective view showing an electric toothbrush for companion animals according to an embodiment of the present invention, and Figure 2 shows a state in which the head unit and the handle unit included in the electric toothbrush for companion animals according to an embodiment of the present invention are combined. This is a perspective view.

Referring to Figures 1 and 2, the electric toothbrush 1 for companion animals according to an embodiment of the present invention may include a head unit 200 and a handle unit 100.

At least a portion of the head unit 200 can be inserted into the oral cavity of a companion animal to remove dental plaque. The head unit 200 may be detachably coupled to the handle unit 100, which will be described later. Accordingly, when the head unit 200 needs to be replaced due to aging, etc., the user can easily replace the existing head unit 200 with a new head unit 200. A detailed description of the head unit 200 for this will be described later.

The handle unit 100 is the main body of the electric toothbrush 1 for pets, and may be designed in a form that a user can hold when using it. This handle unit 100 is detachably coupled to the head unit 200 and can supply a driving voltage to the head unit 200 under user control. And, after a part of the handle unit 100 is inserted into the head unit 200, when it is rotated relative to the head unit 200, it can be electrically connected to the head unit 200 and mechanically fastened. there is.

In more detail, with the handle unit 100 and the head unit 200 positioned side by side, the user moves the handle unit 100 in the first direction and moves the end of the handle unit 100 to the head unit. After inserting the head unit 200 into the head unit 100 and rotating the handle unit 100 in the second direction, the head unit 200 and the handle unit 100 may be coupled to each other. The process of separating the handle unit 100 and the head unit 200 may be performed in the reverse order of the fastening process.

Unlike the above, the electric toothbrush for pets (1), in which the handle unit 100 and the head unit 200 are integrated, is damaged when the toothbrush bristles 211 of the head unit 200 are damaged by repeated use. The entire toothbrush (1) must be replaced. However, in the electric toothbrush 1 for companion animals according to an embodiment of the present invention, when the bristles 211 of the head unit 200 are damaged due to repeated use, the existing head unit 200 can be replaced with the handle unit 100. ) and can be used by combining the new head unit 200 with the handle unit 100.

The electric toothbrush 1 for companion animals according to an embodiment of the present invention can be used to brush the teeth of companion animals.

Hereinafter, with reference to the drawings, the handle unit 100 and the head unit 200 included in the electric toothbrush 1 for pets according to an embodiment of the present invention will be described in detail.

FIG. 3 is an exploded perspective view showing the handle unit of FIG. 2, and FIG. 4 is an exploded perspective view illustrating how the separation prevention member in the handle unit of FIG. 2 is coupled to the insertion member by the first fastening member.

3 and 4, the above-described handle unit 100 includes, for example, an insertion member 120, a handle housing 110, a battery 140, a circuit board 150, a cable 190, and a separation prevention unit. It may include a member 160 and a first fastening member 170.

The insertion member 120 may be inserted into the head unit 200 when the handle unit 100 and the head unit 200 are coupled. The insertion member 120 for this may include, for example, a base portion 121 and a protrusion 122.

The base portion 121 may be formed in a pillar shape. The shape of the base portion 121 may be, for example, cylindrical. The connection terminal 130, which will be described later, may be installed to penetrate the base portion 121 and protrude to the outside.

The protrusion 122 may protrude from the peripheral surface of the base portion 121. The protrusions 122 may be formed in plural pieces. For example, as shown in FIG. 4, two protrusions 122 may be located on the base portion 12. At this time, each of the two protrusions 122 may be located on opposite sides. When the handle unit 100 and the head unit 200 are coupled, the protrusion 122 extends over a portion of the head unit 200 so that the head unit 200 can be coupled to the handle unit 100. This will be explained in detail while describing the head unit 200.

The handle housing 110 may be coupled to the insertion member 120. The handle housing 110 can accommodate a battery 140, a circuit board 150, and a cable 190, which will be described later, and protect them from external contact.

The battery 140 may be installed in the handle housing 110 and may supply power to the circuit board 150, which will be described later.

This battery 140 may be, for example, a primary battery or a secondary battery. If the battery 140 is a primary battery, the user can replace the battery 140 periodically, and if the battery 140 is a secondary battery, charging can be performed through various charging methods.

For example, the battery 140 may be charged through a wireless charging method or a wired charging method, and may also be separated from the handle housing 110 and charged through a separate charging device. For this purpose, a separate charging port 152 may be installed adjacent to the circuit board 150, which will be described later. At this time, a protection member 112 may be installed in the handle housing 110 to protect the charging port 152 from external contact, but is not limited to this.

The circuit board 150 can provide a driving voltage, and for this purpose, a signal supply unit (SG1, see FIG. 14) that generates a driving voltage using the voltage of the battery 140 can be mounted on the circuit board 150. there is. A detailed description of the circuit board 150 for this will be described later.

Meanwhile, an operating member 111 may be installed in the handle housing 110.

The operating member 111 can control power supply from the battery 140 to the circuit board 150. The operating member 111 may be installed in a portion of the handle housing 110.

The operating member 111 may be a push button or a touch sensor, for example. When the operating member 111 is a push button, a switch 151 that detects the pressing of the operating member 111 may be mounted on the circuit board 150. When the user presses the operating member 111, the switch 151 detects the pressing of the operating member 111, thereby enabling on/off control of the electric toothbrush 1 for companion animals.

When brushing the pet's teeth, the user can turn on the electric toothbrush (1) for the pet by pressing the operating member (111), and thus the driving voltage generated from the handle unit (100) is connected to the head unit (200). ) can be supplied to the electrode 230 to generate an electric field for removing dental plaque.

At this time, when the user presses the manipulation member 111, the circuit board 150 turns on the electric toothbrush 1 for companion animals and turns it off after a preset time. For example, the electric toothbrush 1 for a pet may automatically turn off after being operated for a sufficient operating time to brush the pet's teeth. The operation time may be 1 to 3 minutes, but may vary depending on design. Accordingly, the user does not have to repeatedly press the operation member 111 to turn off the electric toothbrush 1 for companion animals, thereby improving convenience. Here, before the electric toothbrush 1 for companion animals is automatically turned off, it may be possible for the user to forcibly turn off the power by pressing the operation member 111.

The connection terminal 130 is positioned such that a portion protrudes outward from the insertion member 120, and is electrically connected to the head unit 200 when the head unit 200 and the handle unit 100 are coupled. do. The connection terminal 130 is electrically connected to the circuit board 150. Based on the direction shown in FIG. 7, the lower end of the connection terminal 130 may be electrically connected to the circuit board 150, and the upper end may be installed to penetrate the insertion member 120 and be exposed to the outside.

Meanwhile, the connection terminal 130 may be directly connected to the circuit board 150 or may be connected to the circuit board 150 through a separate cable 190. However, since various methods can be applied to connect the connection terminal 130 and the circuit board 150, it is not limited to a specific method.

When the head unit 200 and the handle unit 100 are combined, the connection terminal 130 is electrically connected to the head unit 200 so that the driving voltage of the circuit board 150 is transmitted to the head unit 200. It can be delivered. There may be two connection terminals 130 for this. For example, the connection terminal 130 may include a first connection terminal 130A and one or more second connection terminals 130B positioned to be spaced apart from the first connection terminal 130A.

The connection terminal 130 as described above may be formed of a conductive material such as metal, and may have a rod or rod shape with a predetermined length. The connection terminal 130 may be a pogo pin, for example. The pogo pin has a built-in spring so the end can be retracted by external force. The pogo pin always generates elastic force and can stably maintain the contact state when in contact with another object (electrode 230).

The separation prevention member 160 is made of a non-conductive material and fixes the connection terminal 130 to prevent it from being separated from the insertion member 120. Additionally, the separation prevention member 160 can prevent the first connection terminal 130A and the second connection terminal 130B from being energized with each other. For this purpose, the material of the separation prevention member 160 may be made of an insulating material such as plastic or silicon.

To describe the separation prevention member 160 in more detail, the separation prevention member 160 is installed so that the first connection terminal 130A and the plurality of second connection terminals 130B are installed through the separation prevention member 160. Holes through which each of the first connection terminal 130A and the second connection terminal 130B pass may be formed. This separation prevention member 160 can close the open upper side of the insertion member 120. To this end, the shape of the separation prevention member 160 may be formed to correspond to the open upper side of the insertion member 120. Accordingly, the separation prevention member 160 can prevent the connection terminal 130 from being separated and at the same time prevent the inside of the insertion member 120 from being exposed to the outside.

The first fastening member 170 fastens the separation prevention member 160 and the insertion member 120 to each other. The first fastening member 170 may be, for example, a fixing pin or bolt. Since the first fastening member 170 can strongly couple the separation prevention member 160 to the insertion member 120, even if an external force is applied to the connection terminal 130, the connection terminal 130 always maintains its initial position stably. You can.

Figure 5 is an enlarged perspective view showing the portion where the insertion member is located in the handle unit according to a modified example, and Figure 6 is an exploded perspective view showing the handle unit according to the modified example.

5 and 6, the handle unit 300 includes a handle housing 110, a battery 140, a circuit board 150, a coupling member 360, and a second fastening member 170A as a modified example. It can be included.

Since the handle housing 110, battery 140, and circuit board 150 are the same as the handle unit 300 described above, detailed description thereof will be omitted.

The coupling member 360 is made of a non-conductive material, is accommodated inside the insertion member 120A, and is coupled to the connection terminal 130. The external shape of the coupling member 360 may be formed to correspond to the shape of the inner wall surface of the insertion member 120A. Specifically, the portion of the coupling member 360 to which the connection terminal 130 is coupled may be disk-shaped, and the remaining portion is formed to extend from the edge of the disk-shaped portion toward the circuit board 150, and the inner diameter gradually increases. It can be done to increase. Additionally, the portion extending from the coupling member 360 toward the circuit board 150 may be formed to have one side open to the cable 190 .

The coupling member 360 of this shape can not only stably fix the position of the connection terminal 130 and be stably coupled to the insertion member 120A, but also has one side open so that the connection terminal 130 The assembly process can be carried out easily.

The method of coupling the coupling member 360 and the insertion member 120A is, for example, a fixing protrusion 161A formed on the outer surface of the coupling member 360, and a portion of the insertion member 120A corresponding to the fixing protrusion 161A. An insertion hole 123 may be formed in . When the coupling member 360 is inserted into the insertion member 120A, the fixing protrusion 161A is inserted into the insertion hole 123, and the coupling member 360 and the insertion member 120A may be strongly coupled. This joining method can improve productivity by shortening assembly time by not using a separate adhesive.

The second fastening member 170A fastens the handle housing 110 and the insertion member 120A to each other. Specifically, the second fastening member 170A may pass through the assembly hole 113 formed in the handle housing 110 and be fastened to the fastening hole 124 formed in the insertion member 120A. The coupling force between the insertion member 120A and the handle housing 110 may be improved by the second fastening member 170A.

In the process of assembling the handle unit 300 according to the above modification, the connection terminal 130 may be coupled to the coupling member 360 before the coupling member 360 is accommodated inside the insertion member 120A. there is. At this time, one end of the connection terminal 130 is installed to be exposed in the direction toward the circuit board 150 through the coupling member 360, and the other end is exposed through the exposed hole 125 formed in the insertion member 120A. It can be installed to be exposed to the outside. The exposure hole 125 may be formed to penetrate a surface of the insertion member 120A facing the head unit 200 (see FIG. 2). If there are two connection terminals 130, there may also be two exposed holes 125.

As described above, the connection terminal 130 may be a pogo pin, and the pogo pin includes a spring, so the diameter of the middle portion where the spring can be located may be relatively larger than that of both ends. Since the exposed hole 125 formed in the insertion member 120A may be relatively smaller than the middle portion of the connection terminal 130, the connection terminal 130 may not be separated from the insertion member 120A. .

In the handle unit 300 according to this modification, the end of the insertion member 120A is sealed compared to the handle unit 100 (see FIG. 3) described above, so the possibility of moisture infiltrating from the outside is significantly reduced. You can. Additionally, since assembly can be completed simply by inserting the coupling member 360 into the insertion member 120A, assembly convenience can be significantly improved.

Meanwhile, the aforementioned handle units 100 and 100A may further include a first sealing member 181 and a second sealing member 182.

The first sealing member 181 is installed on the peripheral surface of the insertion member 120 and seals between the insertion member 120 and the head unit 200.

The second sealing member 182 is interposed between the insertion member 120 and the handle housing 110 and seals the space between the insertion member 120 and the handle housing 110.

For this purpose, the shape of the first sealing member 181 and/or the second sealing member 182 may be ring-shaped, and the material may be rubber or silicone. While the user uses the electric toothbrush 1 for pets, saliva or toothpaste may flow from the head unit 200. The first sealing member 181 and the second sealing member 182 block substances such as saliva or toothpaste from entering the inside of the handle housing 110 and between the handle housing 110 and the head unit 200, thereby preventing the head unit from entering. It is possible to prevent the 200 or the handle unit 100 from being damaged by moisture.

Hereinafter, the above-described head unit 200 will be described in detail with reference to the drawings.

Figure 7 is an exploded perspective view showing the head unit of Figure 2, Figure 8 is a diagram showing the process of the electrode being seated on the head housing in the head unit of Figure 7, and Figure 9 is a diagram showing the process of combining the insertion member and the bracket member. It is a drawing for explanation, and FIG. 10 is a cross-sectional view showing the head unit and the handle unit combined, and FIG. 11 is a view viewed from a third direction with the waterproof member and the sealing member removed from the head unit of FIG. 7. Here, in Figure 9, the bracket member 220 is shown separated from the head housing 210 for convenience of explanation.

7 to 11, the above-described head unit 200 includes, for example, a head housing 210, an electrode 230, a fixing member 240, a third fastening member 250, and a sealing member 270. and a bracket member 220.

Toothbrush bristles 211 are formed on one side of the head housing 210, and a seating portion 212 on which the electrode 230 is seated is formed on the other side of the head housing 210. Additionally, the head housing 210 can accommodate a fixing member 240, a third fastening member 250, a bracket member 220, and an electrode 230, which will be described later. The toothbrush bristles 211 may be inserted and fixed into a plurality of bristle holes (not shown) formed in the head housing 210. The arrangement structure, number, size, etc. of the toothbrush bristles 211 are not particularly limited and may be changed into various shapes.

The seating portion 212 may be formed to be inserted into one side of the head housing 210 in a shape corresponding to the electrode 230, which will be described later. Based on the direction shown in the drawing, the seating portion 212 may be formed to be retracted from the upper side of the head housing 210. The seating portion 212 may be formed along the longitudinal direction of the head housing 210, one end of the seating portion 212 is formed adjacent to the toothbrush bristles 211, and the other end is a bracket member ( 220) may be formed adjacent to the joined portion.

Electrode 230 may generate an electric field. The electrode 230 for this purpose is located inside the head unit 200, and one end is located adjacent to the open end of the receiving portion 221. The electrode 230 is seated on the seating portion 212 of the head housing 210. In the process of assembling the head unit 200, the user can simply insert the electrode 230 into the predetermined seating portion 212.

Differently, in the case of the electric toothbrush 1 for companion animals in which the head housing 210 is made in a cylindrical shape and the electrode 230 is configured to be inserted through the open end of the head housing 210, the assembling worker Not only does it require skill, assembly time may take a relatively long time, or the electrode 230 may be bent. However, in the case of the electric toothbrush 1 for companion animals according to an embodiment of the present invention, the electrode 230 is located on the head housing 210 opposite to the front of the head housing 210 where the toothbrush bristles 211 are disposed, as described above. ), the assembly time can be significantly shortened by simply being seated on the seating portion 212 formed at the rear of the device.

Meanwhile, when the handle unit 100 and the head unit 200 are combined, the electrode 230 is electrically connected to the connection terminal 130 described above. A detailed description of the shape of the electrode 230 for this purpose will be described later.

The head unit 200 as described above does not include a connection means such as a separate wire or connection module, but uses an integrated electrode 230 to receive electrical energy generated from the handle unit 100 and generate an electric field to the outside. It can occur. Accordingly, during the process of assembling the head unit 200, the worker does not have to place wires or connection modules inside the head unit 200, so the assembly process can proceed more easily.

In addition, when parts are connected using wires differently from the above, a short circuit may occur at the connection point between the wire or connection module and the parts, or a break may occur inside the wire, causing the electric toothbrush for pets (1) not to operate. It may not be possible. However, the head unit 200 included in the electric toothbrush 1 for companion animals according to an embodiment of the present invention uses an integrated electrode 230, so that the above problems can be prevented from occurring.

The fixing member 240 is installed to be in close contact with the electrode 230 while the electrode 230 is seated on the seating portion 212. Accordingly, the electrode 230 can be fixed within the seating portion 212. The fixing member 240 may be in close contact with a portion of the electrode 230 adjacent to the bracket member 220 .

The third fastening member 250 fastens the fixing member 240 and the head housing 210 to each other. The third fastening member 250 may be, for example, a fixing pin or bolt. For example, when the third fastening member 250 is a bolt, the third fastening member 250 may penetrate the fixing member 240 and be screwed to the head housing 210.

The sealing member 270 seals the seating portion 212. Accordingly, the electrode 230 can be protected from the outside by the sealing member 270. Additionally, a waterproof member 260 may be disposed between the sealing member 270 and the seating portion 212. The waterproof member 260 can prevent saliva or foreign substances from entering by sealing the space between the sealing member 270 and the seating portion 212. The waterproof member 260 for this may be, for example, a waterproof tape, but is not limited thereto.

The bracket member 220 may be mechanically fastened to the handle unit 100 when the handle unit 100 and the head unit 200 are combined. The bracket member 220 is located adjacent to the electrode 230 and may be coupled to a portion of the head unit 200 that is coupled to the handle unit 100.

This bracket member 220 may be fastened to the head housing 210 by the above-described fixing member 240. To this end, a locking protrusion 241 may be formed on a portion of the fixing member 240 that contacts the bracket member 220. Additionally, a fixing groove 223 into which the locking protrusion 241 is inserted may be formed in the bracket member 220.

When the fixing member 240 is coupled to the head housing 210 while the bracket member 220 is located inside the head housing 210, the locking protrusion 241 is inserted into the fixing groove 223. The bracket member 220 can remain stably coupled to the head housing 210 by the fixing member 240.

In order to maintain the coupling between the bracket member 220 and the head housing 210 more stably, a rail portion 224 is formed on the bracket member 220, and the rail portion 224 and the head housing 210 are formed on the bracket member 220. A rail groove 213 having a corresponding width may be formed. When the bracket member 220 and the head housing 210 are coupled, the rail portion 224 may be inserted into the rail groove 213.

When the head unit 200 as described above is combined with the handle unit 100, the bracket member 220 may be combined with the insertion member 120 included in the handle unit 100. The bracket member 220 for this may include, for example, a receiving portion 221 and a guide portion 222.

The receiving portion 221 is formed to be open at both ends and is formed to surround the periphery of the insertion member 120. The electrode 230 is positioned to be exposed at the open end of the accommodating part 221, and the insertion member 120 is inserted through the other open end of the accommodating part 221, so that the connection terminal 130 is connected to the electrode 230. may be contacted.

Meanwhile, so that the insertion member 120 can be smoothly inserted into the receiving portion 221, the insertion member 120 may have a cylindrical shape whose diameter decreases toward the end. Additionally, the receiving portion 221 may have a pipe shape corresponding to the outer shape of the insertion member 120, and may have an inner diameter that decreases from one end to the other end.

The guide portion 222 is formed at the end of the receiving portion 221 where the insertion member 120 is inserted, and the protruding portion 122 moves a certain distance in the longitudinal direction of the receiving portion 221 and moves along the length of the receiving portion 221. The movement path of the protrusion 122 is guided to move in a direction perpendicular to the direction.

The guide unit 222 for this may include, for example, a first guide groove (222a) and a second guide groove (222b).

The first guide groove 222a is formed on the inner wall of the receiving part 221 and is formed to be recessed in a size corresponding to the protrusion 122 along the longitudinal direction (first direction) of the receiving part 221. do.

The second guide groove 222b is formed on the inner wall of the receiving portion 221, is connected to the first guide groove 222a, and is directed in a direction perpendicular to the first guide groove 222a (second direction ) is formed to be retracted to a size corresponding to the protrusion 122. The overall shape of the first guide groove 222a and the second guide groove 222b may be similar to the letter 'L'. To facilitate processing of the second guide groove 222b when manufacturing the guide portion 222, the second guide groove 222b may be formed through a process of penetrating the guide portion 222, but is not limited thereto. .

In this way, the movement path of the protrusion 122 is controlled by the first guide groove 222a and the second guide groove 222b, so that when the handle unit 100 and the head unit 200 are combined, the handle unit 100 It may move in the first direction and then rotate in the second direction. In addition, when the protrusion 122 is located on the second guide groove 222b, even if the user forcibly applies force to the handle unit 100 and the head unit 200 in a direction away from each other, the head unit 200 It cannot be separated from the handle unit 100. That is, the combination of the handle unit 100 and the head unit 200 can be stably maintained by the guide portion 222 and the protrusion 122.

The bracket member 220 as described above allows the connection terminal 130 included in the aforementioned handle unit 100 to pass through and is electrically connected to the electrode 230 included in the head unit 200. It may be mechanically coupled to the insertion member 120 included in the handle unit 100.

Meanwhile, the aforementioned electrode 230 may include a first electrode 231 and a second electrode 232.

The first electrode 231 and the second electrode 232 may receive electric energy from the handle unit 100 and generate an electric field. The first electrode 231 and the second electrode 232 may be set as a positive electrode 230 and a negative electrode 230, respectively.

Since the electric field generated from the first electrode 231 and the second electrode 232 can weaken the structure of dental plaque, the user can use the electric toothbrush for pets (1) according to an embodiment of the present invention to It can effectively remove dental plaque from the oral cavity.

The first electrode 231 and the second electrode 232 for this purpose are made of materials such as brass, aluminum, conducting polymer, conducting silicon, and stainless steel. It can be formed, but is not limited to this, and any conductive material can be used as a material for the electrode 230.

To describe each of the first electrode 231 and the second electrode 232 in more detail, each of the first electrode 231 and the second electrode 232 has, for example, a middle portion (231b, 232b) and a head portion. It may include (231a, 232a) and contact portions (231c, 232c).

The

middle portions

231b and 232b have one end adjacent to the toothbrush bristles 211 of the head housing 210 and the other end adjacent to the bracket member 220. The

middle portions

231b and 232b may be formed in a shape corresponding to the seating portion 212 of the head housing 210.

The

head portions

231a and 232a extend from the ends located on the toothbrush bristles 211 in the

middle portions

231b and 232b, and the ends are exposed to the outside. To describe the

heads

231a and 232a in more detail, the head 231a of the first electrode 231 and the head 232a of the second electrode 232 are externally separated from the outer surface of the head housing 210. It can be made to a height that allows it to protrude. The heights of the first electrode 231 and the second electrode 232 may vary depending on the design of the electric toothbrush 1 for companion animals, and are therefore not limited to a specific value.

The

contact portions

231c and 232c extend from ends located adjacent to the bracket member 220 in the

middle portions

231b and 232b, and a portion of the

contact portions

231c and 232c is exposed to the open end of the bracket member 220.

When the handle unit 100 and the head unit 200 are coupled, the

contact portions

231c and 232c come into contact with the connection terminal 130. In more detail, when the handle unit 100 and the head unit 200 are combined, each of the contact portion 231c of the first electrode 231 and the contact portion 232c of the second electrode 232 is It may be electrically connected by contacting the end of the connection terminal 130. For example, the first connection terminal 130A may be in contact with the first electrode 231, and the second connection terminal 130B may be in contact with the second electrode 232. To this end, the surfaces of the

contact portions

231c and 232c that come into contact with the connection terminal 130 may be plate-shaped to maintain stable contact with the connection terminal 130.

Meanwhile, the contact portion 231c of the first electrode 231 and the contact portion 232c of the second electrode 232 are positioned as close as the distance between the first connection terminal 130A and the second connection terminal 130B, and It may be desirable that the first electrode 231 and the second electrode 232 do not conduct electricity to each other. For this purpose, a partition 214 may be formed in the head housing 210. In a state where the first electrode 231 and the second electrode 232 are seated on the seating portion 212 of the head housing 210, the partition wall portion 214 is connected to the

contact portions

231c and 232c of the first electrode 231. It may be located between the

contact portions

231c and 232c of the second electrode 232.

In the process of coupling the head unit 200 and the handle unit 100, frictional force (external force) may be generated between the connection terminal 130 and the electrode 230. The partition 214 can prevent the contact portion 231c of the first electrode 231 and the contact portion 232c of the second electrode 232 from being deformed by external force and contacting each other.

Meanwhile, the head 231a of the first electrode 231 and the head 232a of the second electrode 232 are positioned on the same line and spaced apart from each other along the longitudinal direction of the head housing 210. The lengths of the middle portion 231b of the first electrode 231 and the middle portion 232b of the second electrode 232 may be different from each other. For example, as shown in the drawing, the middle portion 231b of the first electrode 231 is formed to be relatively longer than the middle portion 232b of the second electrode 232, so that the first electrode 231 The head 231a of the second electrode 232 may be located further away from the handle unit 100 than the head 232a of the second electrode 232 . The opposite case may also be possible.

Hereinafter, the process of combining the above-described head unit 200 and the handle unit 100 and changes in the positions of the

connection terminals

130A and 130B will be described.

FIG. 12 is a view of the head unit of FIG. 2 viewed from a first direction.

Referring to FIG. 12 and FIG. 9 described above, with the handle unit 100 and the head unit 200 positioned side by side, the user places the protrusion 122 in the first guide groove 222a and moves the handle unit By moving (100) in the first direction, the end of the handle unit (100) is inserted into the head unit (200).

The user moves the handle unit 100 until the protrusion 122 is located at the boundary between the first guide groove 222a and the second guide groove 222b. At this time, the connection terminal 130 may be located at the first position.

Next, when the user rotates the handle unit 100 in the second direction (clockwise) (see FIG. 2), the protrusion 122 moves along the second guide groove 222b and the head unit 200 moves along the handle. It may be rotated relative to the unit 100 in a counterclockwise direction. At this time, the connection terminal 130 may be located in the second position.

Finally, as shown in FIG. 10, the first connection terminal 130A remains in contact with the contact portion 231c of the first electrode 231, and the second connection terminal 130B is connected to the second electrode 232. ) can be maintained in contact with the contact portion 232c. Accordingly, the electrical energy generated in the handle unit 100 is transmitted to the first electrode 231 and the second electrode 232, and the first electrode 231 and the second electrode 232 are used to remove dental plaque. An electric field may be generated.

FIG. 13 is a view of the head unit of FIG. 2 viewed from the side and front. Specifically, Figure 13 (a) is a view of the head unit viewed from the side, and (b) is a view of the head unit viewed from the front.

Referring to FIG. 13, the head housing 210 described above may be formed to taper from a portion adjacent to the handle unit 100 (see FIG. 10) to a portion where the toothbrush bristles 211 are located. For example, the inclination angle K of the side of the head housing 210 with respect to the virtual reference line of the head unit 200 (a line crossing the center of the head unit) may be in the range of 5 degrees to 20 degrees.

Additionally, the surface of the head housing 210 where the toothbrush bristles 211 are located may be inclined. For example, the angle G of the surface where the toothbrush bristles 211 are located with respect to the virtual reference line of the head unit 200 (a line crossing the center of the head unit) may be in the range of 3 degrees to 30 degrees. Accordingly, the size of the head housing 210 decreases toward the part where the toothbrush bristles 211 are located, so that when a user brushes the teeth of a small companion animal, every corner of the mouth, even the narrow space inside the mouth, can be cleaned cleanly.

Figure 14 is a diagram showing a signal supply unit included in the circuit board, and Figures 15 to 17 are diagrams showing the waveform of a signal according to an embodiment of the present invention. In particular, Figure 15 shows a filtered AC signal (Sac'), Figure 16 shows a DC signal (Sdc), and Figure 17 shows a mixture of the filtered AC signal (Sac') and DC signal (Sdc). The driving signal (Vd) is shown. Additionally, Figures 18 and 19 are diagrams to explain the biofilm removal effect of a driving signal generated by mixing AC signals and DC signals.

Referring to FIG. 14, the signal supply unit SG1 is mounted on the circuit board 150 (see FIG. 3) and can generate a driving signal Vd using the battery voltage Vb supplied from the battery.

In particular, the signal supply unit SG1 may generate a driving signal Vd by mixing an Alternating Current (AC) signal and a Direct Current (DC) signal.

Accordingly, the driving signal (Vd) contains both AC and DC components, and synergistic effects and resonance occur due to simultaneous application of AC and DC components, causing biofilm that causes tongue stains and bacterial film on the palate. The removal effect of biofilm may be increased.

Referring to Figure 18, the electric field due to the DC component increases the structural stress of the biofilm by inducing an imbalance in the local charge distribution, and the electric field due to the AC component increases the permeability of the external protector through specific vibration generation. You can do it.

The synergistic effect of these AC and DC components can be seen in Figure 19. In other words, compared to the biofilm removal effect when the electric field by the AC component and the electric field by the DC component are provided separately, the removal of biofilm is achieved when the electric field by the AC component and the electric field by the DC component are provided simultaneously. It can be seen that the effect is significantly superior.

Due to the driving signal (Vd) supplied by the signal supply unit (SG1) according to an embodiment of the present invention, the electric field by the DC component and the electric field by the AC component can be provided through the electric field generating member, so that the above-described biofilm and A related amplified removal effect can be achieved.

In addition, as the driving signal (Vd) is set as an overlap of alternating current and direct current voltages as described above, the risk of electric shock to the body and the pain that may be caused to the body can be reduced compared to the case where only direct current voltage is applied. .

Meanwhile, the above-described signal supply unit (SG1) may include, for example, a DC-DC converter (SG1a), a signal generator (SG1b), a filter (SG1c), and a calibration unit (SG1d), and additionally a voltage divider (SG1e). ) may further be included.

The DC-DC converter (SG1a) can receive battery voltage (Vb), convert the battery voltage (Vb) into an output voltage (Vo) at a predetermined level, and output it.

The signal generator (SG1b) operates based on the voltage supplied from the DC-DC converter (SG1a), and generates an AC signal (Sac) with a predetermined frequency using the output voltage (Vo) of the DC-DC converter (SG1a). can be created.

The signal generator SG1b may be implemented using a known configuration capable of generating an AC signal, such as an oscillator or a function generator.

For example, the AC signal (Sac) can be set to a frequency of 1KHz to 1000MHz. This is because when the AC signal (Sac) is set to a low frequency of less than 1 KHz, the biofilm removal effect is reduced, and even when the AC signal (Sac) is set to an ultra-high frequency exceeding 1000 MHz, the biofilm removal effect is reduced. Meanwhile, the frequency of the AC signal (Sac) can be set to a frequency of 1MHz to 15MHz, which is suitable for removal of biofilm.

Additionally, the amplitude of the AC signal (Sac) can be set to 0.1mv to 3V. If the amplitude of the AC signal (Sac) is less than 0.1 mV, it is difficult to expect a biofilm removal effect, and if the amplitude of the AC signal (Sac) exceeds 3V, there is a risk of generating toxic substances due to electrolysis of body fluids. .

The filter SG1c may perform a filtering operation on the AC signal Sac generated by the signal generator SG1b. For example, the filter (SG1c) includes a band pass filter and can convert an AC signal (Sac) in the form of a sawtooth wave into an AC signal (Sac') in the form of a sine wave. there is. However, the type of filter (SG1c) is not limited to this, and various types of filters may be employed depending on the design structure.

The calibration unit SG1d may generate the driving signal Vd by mixing the DC signal Sdc with the AC signal Sac' supplied through the filter SG1c. For example, the calibration unit SG1d may be implemented as an operating amplifier capable of summing (or overlapping) the AC signal Sac' and the DC signal Sdc, but is not limited thereto.

Accordingly, an offset corresponding to the DC signal Sdc is generated in the AC signal Sac', and a driving signal Vd containing both AC and DC components can be generated.

Since the driving signal (Vd) includes all the characteristics of the AC signal (Sac), the driving signal (Vd) can be set to a frequency of 1KHz to 1000MHz, and can also be set to a frequency of 1MHz to 15MHz, which is more suitable for biofilm removal. can be set. Additionally, the amplitude of the driving signal (Vd) can be set to 0.1mv to 3V.

Referring to FIG. 15, the calibration unit (SG1d) can receive an AC signal (Sac') having an amplitude of A volt (V) from the filter (SG1c), and the AC signal (Sac') shown in FIG. The final driving signal (Vd) as shown in FIG. 17 can be generated by superimposing the DC signal (Sdc) of B volts (V) as shown.

At this time, the voltage value of the DC signal (Sdc) may be set to be greater than or equal to the amplitude of the AC signal (Sac'). Accordingly, the voltage value of the driving signal (Vd) may be set to 0 or more.

Ultimately, the DC offset value of the driving signal (Vd) may be set to be equal to or greater than the amplitude of the driving signal (Vd).

When the DC offset value of the driving signal (Vd) is less than the amplitude value of the driving signal (Vd), a section occurs in which the voltage of the driving signal (Vd) has a negative value, and in this section, the voltage has a negative value. As a result, loss of electrical energy occurs.

However, as in the embodiment of the present invention, if the DC offset value of the driving signal (Vd) is set to be equal to or larger than the amplitude of the driving signal (Vd), the voltage of the driving signal (Vd) is always '0' or higher, Energy loss can be minimized.

Meanwhile, the DC signal Sdc may be generated by the voltage divider SG1e. For example, the voltage divider (SG1e) can receive the output voltage (Vo) of the DC-DC converter (SG1a) and generate a DC signal (Sdc) by performing voltage division on the output voltage (Vo). You can.

The voltage divider SG1e may be composed of a resistor string to distribute the output voltage Vo, but is not limited thereto.

If the output voltage (Vo) of the DC-DC converter (SG1a) is suitable to be directly used to generate the driving signal (Vd), the corresponding output voltage (Vo) can serve as the DC signal (Sdc). In this case, the voltage divider (SG1e) can be omitted, and the output voltage (Vo) of the DC-DC converter (SG1a) can be input to the calibration unit (SG1d).

20 and 21, the signal supply unit (SG2) according to the modified example includes a DC-DC converter (SG2a), a signal generator (SG2b), a voltage drop unit (SG2e), a filter (SG2c), and an offset adjuster. (SG2d) may be included.

The DC-DC converter (SG2a) can receive the battery voltage (Vb) from the battery, convert the battery voltage (Vb) into an output voltage (Vo) at a predetermined level, and output it.

The signal generator (SG2b) operates based on the voltage supplied from the DC-DC converter (SG2a), and uses the output voltage (Vo) of the DC-DC converter (SG2a) to generate a first AC signal ( Sa1) can be generated.

The signal generator SG2b may be implemented using a known configuration capable of generating an AC signal, such as an oscillator or function generator.

For example, the first AC signal Sa1 may be set to a frequency of 1 KHz to 1000 MHz. If the first AC signal (Sa1) is set to a low frequency of less than 1 KHz, the biofilm removal effect is reduced, and even if the first AC signal (Sa1) is set to an ultra-high frequency of more than 1000 MHz, the biofilm removal effect is reduced. Because. Meanwhile, the frequency of the first AC signal Sa1 may be set to a frequency of 1 MHz to 15 MHz, which is suitable for removal of biofilm.

The voltage drop unit SG2e may be used to reduce the magnitude (eg, peak-to-peak voltage, etc.) of the first AC signal Sa1 output from the signal generator SG2b. For example, the voltage drop portion (SG2e) may be implemented as a resistance element (R), through which the second AC signal (Sa2), whose size is reduced compared to the first AC signal (Sa1), is converted to the voltage drop portion (SG2e). ) can be supplied from.

The filter SG2c may perform a filtering operation on the second AC signal Sa2 output from the voltage drop unit SG2e. For example, the filter (SG2c) can be set as a low pass filter including a capacitor element (C), and the second AC signal (Sa2) in the form of a sawtooth wave is converted to a sine wave. It can be converted into a third AC signal (Sa3) in the form of.

Additionally, the precision of the driving signal Vd can be improved by removing the unexpected DC offset of the second AC signal Sa2 through the filter SG2c.

The offset adjuster SG2d may generate the driving signal Vd by mixing the DC signal with the third AC signal Sa3 output from the filter SG2c. For example, the offset adjuster (SG2d) may be configured to include a plurality of resistance elements (R1, R2), and performs voltage distribution on the output voltage (Vo) of the DC-DC converter (SG2a) to a predetermined level. A DC signal can be generated.

That is, the third AC signal (Sa3) supplied through the filter (SG2c) is overlapped with the DC signal generated at the common node (N) of the first and second resistor elements (R1) and R2, resulting in a final driving signal. (Vd) can be generated.

In this case, the amplitude of the driving signal (Vd) can be set to 0.1mv to 3V. If the amplitude of the driving signal (Vd) is less than 0.1 mV, it is difficult to expect a biofilm removal effect, and if the amplitude of the driving signal (Vd) exceeds 3V, there is a risk of generating toxic substances due to electrolysis of body fluids. .

Those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. The scope of the present invention is indicated by the scope of the claims described below rather than the detailed description above, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. must be interpreted.

Claims

head unit; and

a handle unit detachably coupled to the head unit and supplying a driving voltage to the head unit under user control; Including,

The handle unit is,

An insertion member including a column-shaped base portion and one or more protrusions protruding from a peripheral surface of the base portion; and

a connection terminal, a portion of which is positioned to protrude outwardly from the insertion member, and is electrically connected to the head unit when the head unit and the handle unit are coupled; Including,

The head unit is,

A receiving portion is formed to be open at both ends and is formed to surround the periphery of the insertion member, and is formed at an end of the receiving portion into which the insertion member is inserted, and the protrusion moves a predetermined distance in the longitudinal direction of the receiving portion. a bracket member including a guide portion that guides the movement path of the protrusion so that it moves in a direction perpendicular to the longitudinal direction; and

an electrode located inside the head unit, one end of which is adjacent to the open end of the accommodating part, and electrically connected to the connection terminal when the handle unit and the head unit are coupled; An electric toothbrush for pets containing a.
According to paragraph 1,

The guide portion of the bracket member,

a first guide groove formed on the inner wall of the receiving portion and retracted to a size corresponding to the protrusion along the longitudinal direction of the receiving portion; and

a second guide groove formed on the inner wall of the receiving portion, connected to the first guide groove, and retracted to a size corresponding to the protrusion along a direction perpendicular to the first guide groove; An electric toothbrush for pets containing a.
According to paragraph 1,

An electric toothbrush for companion animals, characterized in that the protrusions are two, and each of the two protrusions is located on opposite sides of each other.
According to paragraph 1,

The handle unit is,

a handle housing coupled to the insertion member;

a battery installed in the handle housing;

a circuit board on which a signal supply unit that generates a driving voltage using the voltage of the battery is mounted;

a separation prevention member made of a non-conductive material and preventing the connection terminal from being separated from the insertion member; and

a first fastening member that fastens the separation prevention member and the insertion member to each other; An electric toothbrush for pets containing a .
According to paragraph 1,

The handle unit is,

a handle housing coupled to the insertion member;

a battery installed in the handle housing;

a circuit board on which a signal supply unit that generates a driving voltage using the voltage of the battery is mounted;

A coupling member made of a non-conductive material, accommodated inside the insertion member, and to which the connection terminal is coupled; and

a second fastening member that fastens the handle housing and the insertion member to each other; Includes,

One end of the connection terminal is installed to be exposed in a direction toward the circuit board through the coupling member, and the other end is installed to be exposed to the outside through an exposure hole formed in the insertion member.
According to clause 4 or 5,

The handle unit is,

a first sealing member installed on a circumferential surface of the insertion member and sealing between the insertion member and the head unit; and

a second sealing member interposed between the insertion member and the handle housing and sealing the space between the insertion member and the handle housing; An electric toothbrush for pets further comprising.
According to paragraph 1,

The head unit is,

A head housing including toothbrush bristles on one side and a seating portion on which the electrode is seated on the other side;

a fixing member installed to be in close contact with the electrode while the electrode is seated on the seating portion;

a third fastening member that fastens the fixing member and the head housing to each other; and

a sealing member sealing the seating portion; An electric toothbrush for pets containing a .
In clause 7,

A locking protrusion is formed on a portion of the fixing member that contacts the bracket member,

An electric toothbrush for companion animals, characterized in that the bracket member is formed with a fixing groove into which the locking protrusion is inserted.
In clause 7,

The electrode includes a first electrode and a second electrode,

Each of the first electrode and the second electrode,

a middle portion with one end positioned adjacent to the toothbrush bristles of the head housing and the other end positioned adjacent to the bracket member;

a head extending from an end located on the toothbrush head in the middle portion, the end of which is exposed to the outside; and

extends from an end located adjacent to the bracket member in the middle portion, is positioned so that a portion is exposed to the open end of the bracket member, and is in contact with the connection terminal when the handle unit and the head unit are coupled. contact part; An electric toothbrush for pets containing a .
According to clause 9,

The lengths of the middle portion of the first electrode and the middle portion of the second electrode are different from each other so that the head portion of the first electrode and the head portion of the second electrode are positioned on the same line and spaced apart from each other along the longitudinal direction of the head housing. Electric toothbrush for pets, characterized in that.
In clause 7,

The head housing is,

An electric toothbrush for pets, characterized in that it is tapered from the part adjacent to the handle unit to the part where the toothbrush bristles are located.
In clause 7,

An electric toothbrush for companion animals, wherein the surface of the head housing on which the toothbrush bristles are located is inclined.
In the combined structure of an electric toothbrush for pets including a mutually detachable head unit and a handle unit,

The handle unit is,

An insertion member having a plurality of protrusions; and

a first connection terminal and a second connection terminal exposed to the outside through the insertion member; Including,

The head unit is,

a bracket member located at a coupling portion with the handle unit; and

a first electrode and a second electrode partially exposed to the outside through the bracket member; Includes,

The bracket member is,

It includes a receiving part into which the insertion member is inserted, and a guide part guiding the movement path of the protrusion,

The guide department,

It includes a first guide groove that allows the protrusion to move along the longitudinal direction of the accommodating part, and a second guide groove that allows the protrusion to move in a direction perpendicular to the longitudinal direction of the accommodating part,

When the plurality of protrusions move along the first guide groove and then the handle unit rotates with respect to the head unit, the plurality of protrusions move along the second guide groove, and the first connection terminal is A coupling structure for an electric toothbrush for companion animals, wherein the first electrode is contacted, and the second connection terminal is in contact with the second electrode.