High-power coupler and split type electric food warmer

Abstract

The utility model provides a high-power coupler and a split type electric food warmer, which belong to the technical field of electric appliances, and comprise an upper coupler and a lower coupler, at least two L-pole electric connection points and at least two N-pole electric connection points are arranged between the upper coupler and the lower coupler, each of the L-pole electric connection points and the N-pole electric connection points has an open state when the upper coupler and the lower coupler are separated and a closed state when the upper coupler and the lower coupler are coupled, the L-pole electric connection points and the N-pole electric connection points are correspondingly arranged, and voltage values of each group of corresponding L-pole electric connection points and N-pole electric connection points are equal; according to the utility model, through the multi-pole structure, the load capacity of the coupler can be improved, so that the coupler can be better adapted to a high-power electric appliance, current can be reasonably distributed on each circuit, the circuit is prevented from being overheated, the electrical stress is reduced, and the stability and redundancy of the circuit are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliances, in particular to a high-power coupler and a split-type electric hot pot. Background Art

[0002] Couplers are usually used for circuit connection in electrical equipment. They include an upper coupler and a lower coupler. Contacts are generally provided on the upper coupler and the lower coupler. When the upper coupler is coupled with the lower coupler, the corresponding contacts are connected to achieve electrical connectivity. However, the power transmission capacity of traditional couplers is limited and it is difficult to meet the power requirements of high-power electrical appliances such as frying pans, thus limiting the application scope of couplers. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a high-power coupler and a split electric hot pot.

[0004] The technical solution adopted by the utility model is as follows: A high-power coupler includes an upper coupler and a lower coupler, at least two L-pole electrical connection points and at least two N-pole electrical connection points are arranged between the upper coupler and the lower coupler, the L-pole electrical connection points and the N-pole electrical connection points both have an open state when the upper coupler is separated from the lower coupler and a closed state when the upper coupler is coupled to the lower coupler, the L-pole electrical connection points and the N-pole electrical connection points are arranged correspondingly, and the voltage values ​​on each group of corresponding L-pole electrical connection points and N-pole electrical connection points are equal.

[0005] It also includes a grounding conductive shaft and a grounding conductive sheet. Each L-pole electrical connection point is formed by a corresponding number of L-pole conductive sheets and an L-pole conductive ring, and each N-pole electrical connection point is formed by a corresponding number of N-pole conductive sheets and an N-pole conductive ring. When the upper coupler is coupled with the lower coupler, the L-pole conductive sheet is electrically connected to the L-pole conductive ring, the N-pole conductive sheet is electrically connected to the N-pole conductive ring, and the grounding conductive sheet is electrically connected to the grounding conductive shaft.

[0006] The L-pole conductive ring, N-pole conductive ring and grounded conductive shaft are arranged on one of the upper coupler and the lower coupler, and the at least two L-pole conductive sheets, at least two N-pole conductive sheets and the grounded conductive sheet are arranged on the other of the upper coupler and the lower coupler.

[0007] The upper coupler is provided with a signal conductive ring, and the lower coupler is provided with at least two signal contact pieces. When the upper coupler is coupled with the lower coupler, the signal contact pieces are connected with the signal conductive ring.

[0008] The L-pole conductive ring, the N-pole conductive ring and the signal conductive ring are all coaxially arranged, and the L-pole conductive sheet, the N-pole conductive sheet and the signal contact sheet are respectively and evenly arranged along the circumference of the corresponding conductive ring.

[0009] The grounding conductive sheet includes two spring sheet parts, which form an insertion interface adapted to the grounding conductive shaft and a guide port for guiding the grounding conductive shaft to be inserted. The end of the grounding conductive shaft is arranged in an arc shape.

[0010] The split electric hot pot includes the high-power coupler, a base and a pot body, wherein the upper coupler is arranged on the pot body, the lower coupler is arranged on the base, a heating load is arranged at the bottom of the pot body, an input end for an external power supply is arranged on the base, and a loop is formed between the input end and the heating load through an L-pole electrical connection point and an N-pole electrical connection point.

[0011] The base is provided with a control system, the control system is connected to the signal contact piece, and the control system includes a control input terminal on-off function and a heating load heat regulation function.

[0012] A pot base is provided at the bottom of the pot body, and the pot base includes a bottom support and a partition. A first cavity is formed between the partition and the bottom of the pot body, and a second cavity is formed between the bottom support and the partition. The upper coupler is located in the second cavity and fixed between the bottom support and the partition. The heating load is located in the first cavity.

[0013] The base is provided with a positioning groove for at least part of the pot base to be embedded, and the bottom surface of the positioning groove is provided with a through hole along the height direction of the base. The pot base includes a first end face abutting against the bottom surface of the positioning groove and a second end face abutting against the upper edge of the positioning groove. The first end face and the second end face are both evenly provided with a plurality of protrusions along the circumferential direction, and the protrusions form a first gap between the first end face and the bottom surface of the positioning groove and between the second end face and the upper edge of the positioning groove. A second gap is provided between the outer peripheral wall of the portion of the pot base embedded in the positioning groove and the inner peripheral wall of the positioning groove, and the second gap connects the two first gaps.

[0014] The beneficial effects of the utility model are as follows: the multi-pole structure in the utility model can improve the load capacity of the coupler, so that it can better adapt to high-power electrical appliances, and can also reasonably distribute current on each circuit, prevent circuit overheating and reduce electrical stress, and increase circuit stability and redundancy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0016] Figure 1 Schematic diagram of the separation of the upper coupler and the lower coupler in the first embodiment Figure 1 ;

[0017] Figure 2 It is an exploded view of the first embodiment;

[0018] Figure 3 It is a schematic diagram of part of the structure in Example 1;

[0019] Figure 4 Schematic diagram of the separation of the upper coupler and the lower coupler in the first embodiment Figure 2 ;

[0020] Figure 5 is a schematic diagram of a grounded conductive sheet in Embodiment 1;

[0021] Figure 6 Schematic diagram of the separation of the pot body and the base in the second embodiment Figure 1 ;

[0022] Figure 7 Schematic diagram of the separation of the pot body and the base in the second embodiment Figure 2 ;

[0023] Figure 8 A partial schematic diagram of the second embodiment Figure 1 ;

[0024] Fig. 9 A partial schematic diagram of the second embodiment Figure 2 . DETAILED DESCRIPTION

[0025] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0026] In the description of the present application, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, "plurality" means two or more.

[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In the description of this application, it should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0029] Embodiment 1:

[0030] like Figures 1 to 5As shown, a high-power coupler includes an upper coupler 1 and a lower coupler 2, at least two L-pole electrical connection points and at least two N-pole electrical connection points are arranged between the upper coupler 1 and the lower coupler 2, the L-pole electrical connection points and the N-pole electrical connection points both have an open state when the upper coupler 1 is separated from the lower coupler 2 and a closed state when the upper coupler 1 is coupled to the lower coupler 2, that is, the state is switched following the action of the upper coupler 1 and the lower coupler 2, the L-pole electrical connection points and the N-pole electrical connection points are arranged correspondingly, and the voltage values ​​of the corresponding L-pole electrical connection points and the N-pole electrical connection points in each group are equal, and the corresponding arrangement under normal circumstances is: each L-pole electrical connection point is arranged correspondingly to an N-pole electrical connection point, and this is a group, wherein the voltage value of each group is equal, that is, a parallel circuit is formed, so that the load capacity of the coupler can be improved through this multi-pole structure, so that it can better adapt to high-power electrical appliances, and can also reasonably distribute current on each circuit, prevent circuit overheating and reduce electrical stress, and increase circuit stability and redundancy. Of course, it is also possible that a plurality of L-pole electrical connection points are provided corresponding to one N-pole electrical connection point, but in the present embodiment, the former is preferably provided in a one-to-one correspondence.

[0031] Specifically, the current values ​​at the L-pole electrical connection points and the N-pole electrical connection points corresponding to each group are the same or different. When the current values ​​are the same, the current is evenly distributed. Of course, the current distribution can also be changed by changing the resistance value.

[0032] Furthermore, it also includes a grounding conductive shaft 3 and a grounding conductive sheet 4, each L-pole electrical connection point is formed by a corresponding number of L-pole conductive sheets 5 and an L-pole conductive ring 6, and each N-pole electrical connection point is formed by a corresponding number of N-pole conductive sheets 7 and an N-pole conductive ring 8. When the upper coupler 1 is coupled with the lower coupler 2, the L-pole conductive sheet 5 is electrically connected to the L-pole conductive ring 6, the N-pole conductive sheet 7 is electrically connected to the N-pole conductive ring 8, and the grounding conductive sheet 4 is electrically connected to the grounding conductive shaft 3. In this embodiment, two L-pole electrical connection points are formed by two L-pole conductive sheets 5 and an L-pole conductive ring 6, and two N-pole electrical connection points are formed by two N-pole conductive sheets 7 and an N-pole conductive ring 8. By adopting the above structure, efficient and stable transmission of current is ensured, wherein the use of conductive rings reduces the number of conductive sheets, and improves the stability and convenience of electrical connection.

[0033] The L-pole conductive ring 6, the N-pole conductive ring 8 and the grounding conductive shaft 3 are arranged on one of the upper coupler 1 and the lower coupler 2, and the at least two L-pole conductive sheets 5, the at least two N-pole conductive sheets 7 and the grounding conductive sheet 4 are arranged on the other of the upper coupler 1 and the lower coupler 2. In this embodiment, the L-pole conductive ring 6, the N-pole conductive ring 8 and the grounding conductive shaft 3 are arranged on the upper coupler 1, and the at least two L-pole conductive sheets 5, the at least two N-pole conductive sheets 7 and the grounding conductive sheet 4 are arranged on the lower coupler 2. Of course, it is not limited to this. It only needs to ensure that the upper coupler 1 is in a disconnected state when it is separated from the lower coupler 2 and is in a closed state when it is coupled to the lower coupler 2.

[0034] The upper coupler 1 is provided with a signal conductive ring 91, and the lower coupler 2 is provided with at least two signal contacts 92. When the upper coupler 1 is coupled with the lower coupler 2, the signal contact 92 is connected to the signal conductive ring 91, providing a signal exchange channel while transmitting power, which can be used to monitor and control the state of the electrical appliance, thereby improving the intelligence and automation level of the electrical appliance. In this embodiment, two signal connection points are formed by the two signal contacts 92 and the signal conductive ring 91.

[0035] The L-pole conductive ring 6, the N-pole conductive ring 8 and the signal conductive ring 91 are all coaxially arranged, making the overall size of the coupler smaller and convenient for installation in a space-constrained environment. The L-pole conductive sheet 5, the N-pole conductive sheet 7 and the signal contact sheet 92 are evenly arranged along the circumference of the corresponding conductive ring to avoid overheating or overload of a certain part, improve the overall reliability and stability, and enhance the stability of the electrical connection between the upper coupling and the lower coupler. In this embodiment, the L-pole conductive ring 6, the N-pole conductive ring 8 and the signal conductive ring 91 are coaxially arranged from the outside to the inside.

[0036] The grounding conductive sheet 4 includes two spring sheet parts 41, and the two spring sheet parts 41 form a plug-in port 42 adapted to the grounding conductive shaft 3 and a guide port 43 for guiding the grounding conductive shaft 3 to be inserted. In the present embodiment, the grounding conductive shaft 3 is cylindrical, and the inner side of the plug-in port 42 is an arc-shaped groove adapted to the cylindrical shape, so as to ensure that a stable electrical connection is formed between the grounding conductive shaft 3 and the grounding conductive sheet 4 when inserted, and at the same time enable the grounding conductive shaft 3 to be quickly and accurately inserted into the plug-in port 42. The end of the grounding conductive shaft 3 is arranged in an arc shape, so as to reduce the damage to the grounding conductive sheet 4 during the plug-in process and extend the service life of the grounding component.

[0037] Embodiment 2:

[0038] like Figures 6 to 9As shown, the split electric hot pot includes the high-power coupler as described in the first embodiment, and also includes a base 10 and a pot body 11. Of course, it is not limited to the pot body 11, and it can also be other high-power kitchen utensils. The upper coupler 1 is arranged on the pot body 11, and the lower coupler 2 is arranged on the base 10. The bottom of the pot body 11 is provided with a heating load 12. The base 10 is provided with an input terminal for an external power supply, and a loop is formed between the input terminal and the heating load 12 through the L-pole electrical connection point and the N-pole electrical connection point. Compared with the traditional structure in which the input terminal is directly arranged on the pot body, the split electric hot pot is more convenient to use, especially when cleaning, and a base 10 can also adapt to different pot bodies or kitchen utensils. Secondly, the circuit is safer and more reliable when connected through the coupler, and the stability and reliability of the electrical connection are better.

[0039] The base 10 is provided with a control system 13, which is connected to the signal contact sheet 9. The control system 13 includes a control input on / off function and a heating load 12 heat regulation function, but is not limited to this function. Other functions commonly used in other electrical products can also be added to this product. The specific structure of the operation panel, PCB board, etc. of the control system 13 can refer to the prior art and will not be described in detail here.

[0040] like Fig. 9 As shown, a pot base 14 is provided at the bottom of the pot body 11, and the pot base 14 includes a base support 141 and an interlayer 142. The interlayer 142 is preferably made of a material with excellent thermal insulation performance. A first cavity 143 is formed between the interlayer 142 and the bottom of the pot body 11, and a second cavity 144 is formed between the base support 141 and the interlayer 142. The upper coupler 1 is located in the second cavity 144 and fixed between the base support 141 and the interlayer 142, forming an upper and lower clamping effect, thereby improving the firmness of the upper coupler 1 assembled in the pot base 14. The fixing method can be bolt connection, etc. At the same time, the interlayer 142 can also prevent the upper coupler 1 from directly contacting the bottom of the pot body 11. The heating load 12 is located in the first cavity 143, wherein the double-cavity structure further improves the thermal insulation performance of the pot base 14, and separates the upper coupler 1 from the heating load 12, thereby preventing the high temperature of the heating load 12 from affecting the upper coupler 1. In this embodiment, the heating load 12 is an arc-shaped heating tube, which is attached to the bottom of the pot body 11 .

[0041] The base 10 is provided with a positioning groove 15 for the pot base 14 to be at least partially embedded, and the bottom surface of the positioning groove 15 is provided with a through hole 16 along the height direction of the base 10 to facilitate cleaning and ventilation of the positioning groove 15.

[0042] The pot base 14 includes a first end face 17 abutting against the bottom surface of the positioning groove 15 and a second end face 18 abutting against the upper edge of the positioning groove 15. The first end face 17 and the second end face 18 are uniformly provided with a plurality of protrusions 19 along the circumferential direction. The protrusions 19 form a first gap 20 between the first end face 17 and the bottom surface of the positioning groove 15 and between the second end face 18 and the upper edge of the positioning groove 15, so as to avoid blocking the through hole 16. A second gap 21 is provided between the outer peripheral wall of the portion of the pot base 14 embedded in the positioning groove 15 and the inner peripheral wall of the positioning groove 15. The second gap 21 connects the two first gaps 20. In this way, when the electric hot pot is in use, the first gap 20 and the second gap 21 can be provided for air circulation, thereby improving the heat dissipation efficiency and extending the service life.

[0043] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A high-power coupler, comprising an upper coupler (1) and a lower coupler (2), characterized in that: At least two L-pole electrical connection points and at least two N-pole electrical connection points are arranged between the upper coupler (1) and the lower coupler (2); the L-pole electrical connection points and the N-pole electrical connection points both have an open state when the upper coupler (1) and the lower coupler (2) are separated, and a closed state when the upper coupler (1) and the lower coupler (2) are coupled; the L-pole electrical connection points and the N-pole electrical connection points are arranged correspondingly, and the voltage values ​​of each group of corresponding L-pole electrical connection points and N-pole electrical connection points are equal.

2. A high power coupler according to claim 1, characterized in that: It also includes a grounding conductive shaft (3) and a grounding conductive sheet (4); each L-pole electrical connection point is formed by a corresponding number of L-pole conductive sheets (5) and an L-pole conductive ring (6); each N-pole electrical connection point is formed by a corresponding number of N-pole conductive sheets (7) and an N-pole conductive ring (8); when the upper coupler (1) is coupled with the lower coupler (2), the L-pole conductive sheet (5) is electrically connected to the L-pole conductive ring (6), the N-pole conductive sheet (7) is electrically connected to the N-pole conductive ring (8), and the grounding conductive sheet (4) is electrically connected to the grounding conductive shaft (3).

3. A high power coupler according to claim 2, characterized in that: The L-pole conductive ring (6), the N-pole conductive ring (8) and the grounding conductive shaft (3) are arranged on one of the upper coupler (1) and the lower coupler (2), and the at least two L-pole conductive sheets (5), the at least two N-pole conductive sheets (7) and the grounding conductive sheet (4) are arranged on the other of the upper coupler (1) and the lower coupler (2).

4. A high power coupler according to claim 3, characterized in that: The upper coupler (1) is provided with a signal conductive ring (91), and the lower coupler (2) is provided with at least two signal contact pieces (92); when the upper coupler (1) is coupled with the lower coupler (2), the signal contact pieces (92) are connected to the signal conductive ring (91).

5. A high power coupler according to claim 4, characterized in that: The L-pole conductive ring (6), the N-pole conductive ring (8) and the signal conductive ring (91) are all coaxially arranged, and the L-pole conductive sheet (5), the N-pole conductive sheet (7) and the signal contact sheet (92) are evenly arranged along the circumference of the corresponding conductive rings.

6. A high power coupler according to claim 3, characterized in that: The grounding conductive sheet (4) comprises two spring sheet parts (41), the two spring sheet parts (41) forming an insertion interface (42) adapted to the grounding conductive shaft (3) and a guide opening (43) for guiding the grounding conductive shaft (3) to be inserted, and the end of the grounding conductive shaft (3) is arranged in an arc shape.

7. A split electric hot pot, comprising a high-power coupler as claimed in any one of claims 1 to 6, characterized in that: The invention also comprises a base (10) and a pot body (11), wherein the upper coupler (1) is arranged on the pot body (11), and the lower coupler (2) is arranged on the base (10). A heating load (12) is arranged at the bottom of the pot body (11), and an input terminal for an external power supply is arranged on the base (10). A loop is formed between the input terminal and the heating load (12) via an L-pole electrical connection point and an N-pole electrical connection point.

8. The split electric hot pot according to claim 7, characterized in that: A control system (13) is provided on the base (10), the control system (13) is connected to the signal contact piece (9), and the control system (13) includes a control input terminal on-off function and a heating load heat regulation function.

9. The split electric hot pot according to claim 7, characterized in that: A pot base (14) is provided at the bottom of the pot body (11); the pot base (14) comprises a bottom support (141) and a partition (142); a first cavity (143) is formed between the partition (142) and the bottom of the pot body (11); a second cavity (144) is formed between the bottom support (141) and the partition (142); the upper coupler (1) is located in the second cavity (144) and is fixed between the bottom support (141) and the partition (142); and the heating load (12) is located in the first cavity (143).

10. The split electric hot pot according to claim 7, characterized in that: The base (10) is provided with a positioning groove (15) for at least part of the pot base (14) to be embedded, and a through hole (16) is provided on the bottom surface of the positioning groove (15) along the height direction of the base (10). The pot base (14) comprises a first end surface (17) abutting against the bottom surface of the positioning groove (15) and a second end surface (18) abutting against the upper edge of the positioning groove (15). The first end surface (17) and the second end surface (18) are evenly provided with a plurality of protrusions (19) along the circumferential direction. The protrusions (19) form a first gap (20) between the first end surface (17) and the bottom surface of the positioning groove (15) and between the second end surface (18) and the upper edge of the positioning groove (15). A second gap (21) is provided between the outer peripheral wall of the portion of the pot base (14) embedded in the positioning groove (15) and the inner peripheral wall of the positioning groove (15). The second gap (21) connects the two first gaps (20).

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