Charging device for electric hot-water bag

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By introducing anti-hopping parts into the electric hot water bag charging device, the problem of easy jumping of traditional charging devices is solved, and the stable closure of the charging line and the safety of use are improved.

CN222530237UActive Publication Date: 2025-02-25CIXI RONGSHANG ELECTRIC CO LTD

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Patent Information

Application Number: CN202420228905.3
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-01-29
Publication Date: 2025-02-25
Estimated Expiration: 2034-01-29

AI Technical Summary

Technical Problem

The charging device of traditional electric water bags is prone to fire jumping, which poses safety hazards.

Method used

An electric hot water bag charging device including anti-hopping parts is designed to ensure stable closure of the charging line and avoid fire jumping through the active connection of the anti-hopping parts.

Benefits of technology

It effectively eliminates fire jumping, improves the safety of use, and ensures the stability of the charging line.

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Abstract

The utility model discloses a charging device for an electric hot-water bag, which comprises a first terminal and a second terminal which are connected with a charging circuit of the hot-water bag, the charging device for the electric hot-water bag is provided with an anti-jumping piece which is movably connected to the charging device, and a charging connecting seat of the hot-water bag abuts against a first end of the anti-jumping piece. Therefore, the second end of the anti-jumping piece moves to enable the second terminal to move towards the first terminal until the second terminal and the first terminal are contacted to realize electrical conduction, so that the charging circuit is stably closed to form a loop to realize charging. After the hot-water bag charging device is connected to the charging connecting seat of the hot-water bag, the anti-jumping piece enables the first terminal and the second terminal to be closed, so that stable closing of a loop is ensured, the flashover phenomenon is eliminated, and the use safety is improved.

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Description

Technical Field

[0001] The utility model relates to the technical field of electric hot water bags, and specifically designs a spark-proof electric hot water bag charging device. Background Art

[0002] Electric hot water bags are widely welcomed by consumers due to their advantages such as convenience, long heat preservation time and good heating effect. At present, common electric hot water bags generally include a sealed bag body, a heating unit, a power connection unit and a charging unit; the sealed cavity inside the sealed bag body is filled with a liquid medium for transferring heat, and the heating unit is arranged in the sealed cavity and immersed in the liquid medium; the power connection unit is sealed and connected to the sealed bag body, a part of the power connection unit is exposed outside the sealed bag body, and the other part is sealed in the sealed cavity of the sealed bag body, and the power connection unit is electrically connected to the heating unit. After the charging unit is connected to the power supply, the heating unit, the power connection unit and the power supply form a circuit and are energized, the power-on indicator light in the charging unit is on, and the heating unit heats the liquid in the bag. As the heating time increases, the originally flat bag body expands and bulges due to the continuous expansion of the liquid volume and steam, and then the purpose of safe use is achieved through protection devices such as thermostats and thermal protectors.

[0003] The traditional charging method is to couple the copper needle of the charging connector with the copper tube of the hot water bag charging device. However, in actual application, the two are prone to incomplete coupling, so it is easy to spark and also bring safety hazards to use. Therefore, it is very important to obtain an electric hot water bag charging device that overcomes the above defects. Utility Model Content

[0004] In order to solve at least one of the above-mentioned technical problems, the utility model provides an electric hot water bag charging device, comprising a first terminal and a second terminal connected to the charging circuit of the hot water bag, the electric hot water bag charging device is provided with an anti-jump component movably connected to the charging device, the charging connection seat of the hot water bag contacts the first end of the anti-jump component to move the second end of the anti-jump component to move the second terminal toward the first terminal until the two are in contact to achieve electrical conduction, so that the charging circuit is stably closed to form a loop to achieve charging.

[0005] Through the above technical solution, after the hot water bag charging device is connected to the charging connection socket of the hot water bag, the anti-jump component prompts the first terminal and the second terminal to close, ensuring stable closure of the circuit, eliminating the spark phenomenon, and improving the safety of use.

[0006] As a preferred embodiment of the above, a first channel is provided on the hot water bag charging device, and the anti-jump component is disposed in the first channel and can move axially on the first channel.

[0007] Preferably, in order to prevent the anti-jumping member from detaching, a first limiting surface and a second limiting surface that cooperate with each other are provided between the anti-jumping member and the first channel, and when the first limiting surface contacts the second limiting surface, the first end of the anti-jumping member is placed outside the first channel. Or when the first limiting surface contacts the second limiting surface, the first end of the anti-jumping member is placed in the first channel or flush with the end surface of the first channel, and a protruding block that cooperates with the first end of the anti-jumping member is provided on the charging connector of the hot water bag. The height of the protruding block satisfies that: after the electric hot water bag charging device is stably plugged in with the charging connector of the hot water bag, the protruding block lifts the anti-jumping member, and the anti-jumping member moves the second terminal toward the first terminal until electrical contact is made.

[0008] The second terminal is provided with a protrusion on one side of the anti-jumping member to ensure stable matching, wherein the protrusion can be fixedly connected to the anti-jumping member, or the two are not in contact when not charging, and are in abutment connection when connected to the charging seat. The side wall of the protrusion is provided with a groove.

[0009] As a preferred embodiment of the above, the first terminal and the second terminal are provided with matching first and second protrusions on opposite sides thereof to form a pull-in contact.

[0010] As a preferred embodiment of the above, it also includes a first spring sheet and a second spring sheet, the first terminal is arranged on the first spring sheet, the second terminal is arranged on the second spring sheet, and the first spring sheet and the second spring sheet are connected to the charging circuit.

[0011] Preferably, the first elastic sheet and the second elastic sheet cooperate to form a leaf switch.

[0012] Through the above technical solution, the arrangement of the first spring sheet and the second spring sheet can achieve that when not connected to the charging base, the spring sheet is elastic and can be reset, thereby preventing the first terminal and the second terminal from always being in contact.

[0013] The charging circuit includes at least one switch control component, a first terminal and a second terminal, and a conductive terminal for cooperating with the charging connection seat of the hot water bag. The first terminal and the second terminal are respectively connected to the power supply and the switch control component. The switch control component includes a micro switch, a relay, or a thyristor.

[0014] The charging circuit includes a charging indicator light, and the electric hot water bag charging device is cooperatively connected with the charging connection socket of the hot water bag to close the charging circuit to form a loop, and the indicator light is on.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a simple structure, and the anti-jump component can realize the mechanical attraction of the first spring piece and the second spring piece to cooperate with the stable connection of the relay to ensure the stability of the charging circuit to form a loop, thereby effectively eliminating the spark phenomenon and improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-section of the utility model;

[0018] Figure 3 A cross-sectional stereogram showing the utility model being put into use;

[0019] Figure 4 The circuit structure of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 5 The circuit structure of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 6 The circuit structure of the utility model is shown in FIG. Figure 3 ;

[0022] Figure 7 This is another schematic diagram of the structural cross section of the utility model;

[0023] Reference numerals:

[0024] 1 electric hot water bag charging device; 101 first terminal; 102 second terminal;

[0025] 2 anti-jump parts;

[0026] 3 charging connector;

[0027] 4 First channel;

[0028] 501 first limiting surface; 502 second limiting surface;

[0029] 6 bumps; 601 grooves;

[0030] 7 leaf switch; 701 first spring sheet; 702 second spring sheet;

[0031] 8 relay; 801 moving contact; 802 static contact; 803 coil;

[0032] 9 electric heating tube;

[0033] 10 charging indicator light; 11 micro switch; 12 thyristor; 13 raised block. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the present invention and to more clearly define the scope of protection claimed by the present invention, the present invention is described in detail below with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific implementation methods of the present invention, which are only part of the embodiments of the present invention, and the specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and the specific features do not naturally and directly limit the scope of implementation of the present invention.

[0035] Referring to the accompanying drawings, the utility model adopts the following technical scheme: an electric hot water bag charging device 1, comprising a first terminal 101 and a second terminal 102 connected to the charging circuit of the hot water bag, the electric hot water bag charging device 1 is provided with an anti-jumping member 2 movably connected to the charging device, and the charging connection seat 3 of the hot water bag contacts the first end of the anti-jumping member 2 to move the second end of the anti-jumping member 2 to move the second terminal 102 toward the first terminal 101 until the two are in contact to achieve electrical conduction, so that the charging circuit is stably closed to form a loop to achieve charging.

[0036] The charging connection socket 3 of the hot water bag is an existing structure.

[0037] Through the above technical solution, after the hot water bag charging device is connected to the charging connection socket 3 of the hot water bag, the anti-jump component 2 prompts the first terminal 101 and the second terminal 102 to close, ensuring stable closure of the circuit, eliminating the spark phenomenon, and improving the safety of use.

[0038] As a preferred embodiment of the above, a first channel 4 is provided on the hot water bag charging device, and the anti-jump component 2 is disposed in the first channel 4 and can move axially on the first channel 4 .

[0039] Preferably, in order to prevent the anti-jumping member 2 from being separated, a first limiting surface 501 and a second limiting surface 502 that cooperate with each other are provided between the anti-jumping member 2 and the first channel 4, and when the first limiting surface 501 contacts the second limiting surface 502, the first end of the anti-jumping member 2 is placed outside the first channel 4. Or when the first limiting surface contacts the second limiting surface, the first end of the anti-jumping member is placed inside the first channel or flush with the end surface of the first channel, such as Figure 7 As shown, the charging connector of the hot water bag is provided with a protrusion that matches the first end of the anti-jumping member. The height of the protrusion satisfies that: after the electric hot water bag charging device is stably plugged into the charging connector of the hot water bag, the protrusion lifts the anti-jumping member, and the anti-jumping member moves the second terminal toward the first terminal until electrical contact is made.

[0040] In this embodiment, the anti-jump member 2 is rod-shaped, with a limiting ring formed on the outer surface, the bottom surface of the limiting ring forms a first limiting surface 501, and a limiting groove is opened on the first channel 4, and the upper surface of the limiting groove forms a second limiting surface 502.

[0041] In this embodiment, the anti-jump member 2 is vertically arranged, and in other embodiments, it can also be inclined.

[0042] The second terminal 102 is located on one side of the anti-jumping member 2 and is provided with a protrusion 6 that cooperates with it for stable cooperation, wherein the protrusion 6 can be fixedly connected to the anti-jumping member 2, or the two are not in contact when not charging, and are in a contact connection when connected to the charging seat.

[0043] The side wall of the protrusion 6 is provided with a groove 601, which is used for forming when producing the protrusion.

[0044] In this embodiment, the protrusion 6 is in the shape of a prism, and in other embodiments, it may be in other shapes such as a hemisphere.

[0045] As a preferred embodiment of the above, the first terminal 101 and the second terminal 102 are provided with matching first and second protrusions on opposite sides thereof to form a pull-in contact.

[0046] As a preferred embodiment of the above, it further includes a first spring sheet 701 and a second spring sheet 702, the first terminal 101 is disposed on the first spring sheet 701, the second terminal 102 is disposed on the second spring sheet 702, and the first spring sheet 701 and the second spring sheet 702 are connected to the charging circuit. Preferably, the first spring sheet 701 and the second spring sheet 702 cooperate to form a leaf switch.

[0047] Through the above technical solution, the arrangement of the first spring sheet 701 and the second spring sheet 702 can realize that when not connected to the charging base, the spring sheet is elastic and can be reset, thereby preventing the first terminal 101 and the second terminal 102 from always contacting each other.

[0048] Among them, in other embodiments, a reset spring can be arranged between the anti-jump member 2 and the first channel 4, and the second terminal 102 is fixed at the second end of the anti-jump member 2. When the anti-jump member 2 moves upward, the first terminal 101 contacts the second terminal 102. After the first end of the anti-jump member 2 is away from the charging connection seat 3, due to the action of the reset spring, the anti-jump member 2 moves downward to separate the first terminal 101 and the second terminal 102.

[0049] The charging circuit includes at least one switch control component, a first terminal and a second terminal, and a conductive terminal for cooperating with the charging connection seat of the hot water bag. The first terminal and the second terminal are respectively connected to the power supply and the switch control component. The switch control component includes a micro switch, a relay, or a thyristor.

[0050] In one embodiment, the switch control component includes a micro switch, a relay, such as Figure 4 shown.

[0051] Or switch control components include micro switches and thyristors, such as Figure 5 shown.

[0052] or the switch components consist only of relays, e.g. Figure 6 shown.

[0053] The charging circuit includes a charging indicator light 10, and the electric hot water bag charging device 1 is connected with the charging connection socket 3 of the hot water bag to close the charging circuit to form a loop, and the indicator light is on.

[0054] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention has a simple structure, and the anti-jump component 2 can realize the mechanical attraction of the first spring piece 701 and the second spring piece 702 to cooperate with the relay 8 for stable connection to ensure the stability of the charging circuit to form a loop, thereby effectively eliminating the spark phenomenon and improving the safety of use.

[0055] The above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. An electric hot water bag charging device, characterized in that: The invention comprises a first terminal (101) and a second terminal (102) connected to a charging circuit of a hot water bag, wherein the electric hot water bag charging device (1) is provided with an anti-jumping component (2) movably connected to the charging device, and a charging connection seat (3) of the hot water bag contacts the first end of the anti-jumping component (2) so that the second end of the anti-jumping component (2) moves to move the second terminal (102) toward the first terminal (101) until the two are in contact to achieve electrical conduction, so that the charging circuit is closed to form a loop to achieve charging.

2. The electric hot water bag charging device according to claim 1, characterized in that: A first channel (4) is provided on the hot water bag charging device, and the anti-jump component (2) is disposed in the first channel (4) and can move axially on the first channel (4).

3. The electric hot water bag charging device according to claim 2, characterized in that: A first limiting surface (501) and a second limiting surface (502) that cooperate with each other are provided between the anti-jump component (2) and the first channel (4); When the first limiting surface (501) contacts the second limiting surface (502), the first end of the anti-jumping member (2) is placed outside the first channel (4); or when the first limiting surface contacts the second limiting surface, the first end of the anti-jumping member (2) is placed inside the first channel or flush with the end surface of the first channel, and a protruding block (13) that cooperates with the first end of the anti-jumping member is provided on the charging connection seat (3) of the hot water bag.

4. The electric hot water bag charging device according to claim 1, characterized in that: The second terminal (102) is located on one side of the anti-jump component (2) and is provided with a protrusion (6) that cooperates with the anti-jump component (2).

5. The electric hot water bag charging device according to claim 1, characterized in that: The first terminal (101) and the second terminal (102) are provided with matching first and second protrusions on opposite sides to form a pull-in contact.

6. The electric hot water bag charging device according to claim 1, characterized in that: It also includes a first spring sheet (701) and a second spring sheet (702), the first terminal (101) is arranged on the first spring sheet (701), the second terminal (102) is arranged on the second spring sheet (702), and the first spring sheet (701) and the second spring sheet (702) are connected to a charging circuit.

7. The electric hot water bag charging device according to claim 6, characterized in that: The first spring sheet (701) and the second spring sheet (702) cooperate to form a leaf switch.

8. The electric hot water bag charging device according to claim 1, characterized in that: The charging circuit comprises at least one switch control component, a first terminal (101) and a second terminal (102), and a conductive terminal for cooperating with a charging connection seat of a hot water bag. The first terminal and the second terminal are respectively connected to a power source and a switch control component.

9. The electric hot water bag charging device according to claim 8, characterized in that: The switch control component includes a micro switch, a relay, or a thyristor.

10. The electric hot water bag charging device according to claim 1, characterized in that: The charging circuit comprises a charging indicator light (10); the electric hot water bag charging device (1) is cooperatively connected with the charging connection socket (3) of the hot water bag so that the charging circuit is closed to form a loop, and the charging indicator light (10) is lit.