WO2021082161A1

WO2021082161A1 - Container body circuit connection structure of small household appliance

Info

Publication number: WO2021082161A1
Application number: PCT/CN2019/121826
Authority: WO
Inventors: 赵海杰; 潘俊
Original assignee: 浙江达威电子股份有限公司
Priority date: 2019-10-30
Filing date: 2019-11-29
Publication date: 2021-05-06
Also published as: CN211242945U

Abstract

A container body circuit connection structure of a small household appliance, comprising a heating element and an upper coupler (1); the upper coupler (1) is provided with two first pins (12) for mating contact and electrical connection with a lower coupler, and two first wiring terminals (13) respectively electrically connected to a two-pole wiring of the heating element, the two first pins (12) and the two first wiring terminals (13) are connected in one-to-one correspondence, and a high temperature switch is connected in series between at least one first pin (12) and the corresponding first wiring terminal (13) connected thereto, the high temperature switch is arranged on the upper coupler (1). The connection structure has few elements and a simple circuit connection, which is convenient for assembly and maintenance.

Description

Cup body circuit connection structure of small household appliance

Technical field

The utility model relates to a cup circuit connection structure of small household appliances.

Background technique

With the development of small appliances, there are more and more functions and types of small appliances, especially small white appliances that can heat food and drinks, such as wall breakers, soymilk machines, health pots, etc., which are generally removable The cup body and the base are usually provided with a heating element for heating the inner pot of the cup and a high temperature switch for cutting off the circuit when the temperature is too high. The base is used to connect to the household power supply. For some For high-end smart small household appliances, some sensors are usually set on the cup body, and a control board is also set on the base. In order to realize the current/signal transmission between the cup body and these components on the base, A coupler is usually set between the cup body and the base. The coupler generally includes an upper coupler set on the cup body and a lower coupler set on the base. The two can be coupled to each other while the cup body and the base are connected. , So that the current/signal can be transmitted between the cup and the components on the base.

The circuit connection structure of the cup body of the traditional small household appliances is more complicated, and the number of components that need to be connected is large. The upper coupler, heating element, protection switch, etc. are all independently installed, and they need to be connected one by one during assembly. Assembly and maintenance cause a lot of inconvenience.

technical problem

Aiming at the shortcomings of the prior art, the utility model provides a cup circuit connection structure for small household appliances, which has a simple structure and a small number of components that need to be wired and connected, which facilitates the assembly and maintenance of the small household appliances.

Technical solutions

In order to achieve the above object, the present invention provides a cup circuit connection structure for small household appliances, which includes a heating element and an upper coupler. The upper coupler is provided with two electrical connections for mating contact with the lower coupler. The first pin and the two first connecting terminals respectively electrically connected to the two-pole wiring of the heating element, the two first pins and the two first connecting terminals are connected in one-to-one correspondence, and at least one first pin is connected to the corresponding first wiring A high temperature switch is connected in series between the terminals, and the high temperature switch is arranged on the upper coupler.

Beneficial effect

The beneficial effect of the utility model is that when assembling the product, the two first connecting terminals of the upper coupler are electrically connected to the two-pole wiring of the heating element on the cup body, because at least one first pin of the upper coupler is connected to the A high-temperature switch is connected in series between the correspondingly connected first connection terminals, and the high-temperature switch can cut off the circuit when the temperature is too high. Compared with the prior art, since the high temperature switch is arranged on the upper coupler, only the upper coupler and the heating element need to be connected during assembly to complete the connection process, and there is no need to separately assemble the high temperature switch on the cup body and separate them. Wiring with the heating element and the upper coupler, so the overall circuit structure is simpler. When the upper coupler and the lower coupler are coupled, the two first pins of the upper coupler can contact and electrically connect with the pins on the lower coupler, thereby realizing current transmission. In addition, when the high-temperature switch is damaged, the upper coupler can be directly disassembled for repair or replacement, which is convenient for product assembly and maintenance.

Further, the upper coupler is provided with a temperature sensor for sensing the temperature of the inner tank, and the upper coupler is provided with two second pins for contact and electrical connection with the lower coupler. The two pins are electrically connected to the two poles of the temperature sensor.

The effect brought by the further arrangement is: because the upper coupler is provided with a temperature sensor, and the two poles of the temperature sensor are electrically connected to the two second pins of the upper coupler, when the upper coupler and the lower coupler are coupled, The two second pins of the upper coupler can be contacted and electrically connected with the pins on the lower coupler, so that the temperature signal generated by the temperature sensor can be transmitted to the control board of the base of the small home appliance, thereby realizing the temperature control or temperature sensing function of the small home appliance . The temperature sensor is configured on the upper coupler, no additional installation is required, and the temperature sensor does not need to be wired separately when the upper coupler is assembled. When the temperature sensor is used, the upper coupler can be directly disassembled for repair or replacement , So it can facilitate assembly and maintenance.

Further, the utility model also includes an overflow prevention rod for detecting the height of the liquid level of the cup body, and a magnetic control switch for detecting the closed state of the cup body cover. The upper coupler is provided with two for cooperating with the lower coupler. The third pin of the contact electrical connection and the two second connection terminals respectively corresponding to the third pins are connected in series, and the two second connection terminals are respectively connected in series with the anti-overflow bar and the magnetic control switch.

The effect of further setting is that the setting of the anti-overflow bar can be used to detect the height of the liquid level of the cup, and the setting of the magnetic control switch can detect the closed state of the cup cover. When the upper coupler and the lower coupler are coupled, the upper coupling The two third pins of the device can be contacted and electrically connected with the pins on the lower coupler, so that the signal generated by the anti-overflow bar and the magnetic control switch can be transmitted to the control board of the small home appliance base, thereby realizing the anti-overflow and intelligent reminding of the small home appliance And other functions.

Further, the high temperature switch is a non-self-resetting high temperature switch.

The effect of further setting is that the non-self-resetting high-temperature switch cannot reset itself after the circuit is cut off due to the high temperature. It needs to be driven by an external force to reset, which can prevent small household appliances from reheating and dry and improve safety.

Further, the upper coupler is provided with two fourth pins for mating contact and electrical connection with the lower coupler, and the two fourth pins are electrically connected to each other.

The effect brought by the further arrangement is that the two electrically connected fourth pins on the upper coupler can be used to cooperate to detect the connection between the cup body and the base, for example, by connecting the upper and fourth pins of the lower coupler. The two pins that match the contact are connected to the control board. Based on the control board's detection of the connection of these two pins, it can identify and judge whether the cup body and the base are properly connected, and can give the user certain prompts; By connecting these two pins to the power supply circuit of the base, the power supply circuit can be turned on only when the upper and lower couplers are coupled to each other, so that the power supply circuit can be cut off when the cup body is separated, thereby improving safety.

Description of the drawings

Figure 1 is a circuit connection structure diagram of the cup body of the embodiment of the utility model;

Fig. 2 is an enlarged view of part A in Fig. 1.

The best mode of the present invention

The small household appliances mentioned in the present invention refer to small household appliances with the function of heating food and beverages, such as wall breakers, health pots, electric kettles, soymilk machines and the like.

The embodiment of the circuit connection structure of the cup body of the small household appliance of the present invention is shown in Figure 1-2: It includes a heating element and an upper coupler 1. The heating element is generally arranged at the bottom of the inner bladder of the small household appliance cup (it can also be a heating element). Plate), which can heat the food and drink in the cup body by heating the cup body, and the upper coupler 1 is provided with two first couplings for contact and electrical connection with the lower coupler. Pin 12 and two first connecting terminals 13 respectively electrically connected to the two-pole wiring of the heating element. The two first pins 12 and the two first connecting terminals 13 are connected in one-to-one correspondence, and at least one first pin 12 is connected to the corresponding first connecting terminal 13 A high-temperature switch is connected in series between a connecting terminal 13, and the high-temperature switch is arranged on the upper coupler 1. The upper coupler 1 is assembled on the cup body while pressing the high-temperature switch to the bottom of the inner container (heating plate), The high temperature switch can cut off the circuit connected with the heating element when the temperature is too high, so that the heating element stops working. In order to prevent the failure of the high-temperature switch and improve the safety performance, it is preferable that a high-temperature switch (as shown in Figure 1) is connected in series between the two first pins 12 and the first connection terminal 13 corresponding thereto, and one of the high-temperature switches fails. When, the other is still able to cut off the circuit.

The upper coupler 1 is provided with a temperature sensor for sensing the temperature of the inner tank, and the upper coupler is provided with two second pins 14 for mating contact and electrical connection with the lower coupler. The pins 14 are electrically connected to the two poles of the temperature sensor respectively. When the upper coupler 1 is assembled on the cup body, the temperature sensor is pressed into contact with the bottom of the inner tank (it can also be a heating plate). The temperature sensor can convert the sensed temperature into a temperature signal and transmit it to the base along the coupler. The control board can then cooperate to realize functions such as temperature control or temperature sensing.

The cup body circuit connection structure further includes an overflow prevention rod for detecting the height of the liquid level of the cup body, and a magnetic control switch for detecting the closed state of the lid of the cup body. The overflow prevention rod and the magnetic control switch are arranged on the cup body. The coupler 1 is provided with two third pins 15 for mating contact and electrical connection with the lower coupler and two second connection terminals 16 respectively connected to the third pins 15 respectively. The two second connection terminals 16 They are connected in series with the anti-overflow bar and the magnetic control switch respectively.

The high-temperature switch is a non-self-resetting high-temperature switch, which can prevent small household appliances from being repeatedly heated and dry and improve safety. In order to realize the resetting of the high temperature switch, an operation switch linked to the high temperature switch can be provided on the cup body. The operation switch can be driven by manual operation to reset the high temperature switch, or the operation switch can be set between the cup body and the base. , Based on the action when the cup body and the base are separated, the high temperature switch is driven to reset.

The upper coupler 1 is provided with two fourth pins 11 for mating contact and electrical connection with the lower coupler, and the two fourth pins 11 are electrically connected to each other. The two fourth pins 11 electrically connected to each other on the upper coupler can be used to cooperate to detect the connection between the cup body and the base, for example, by matching the two pins 11 on the lower coupler that are in contact with the fourth pin 11 Connect with the control board. Based on the control board's detection of the connection of these two pins, it can identify and judge whether the cup body and the base are properly connected, and then can give the user certain prompts; it can also be done by connecting these two pins. The pins are connected to the power supply circuit of the base, so that the power supply circuit can be turned on only when the upper and lower couplers are coupled to each other, so that the power supply circuit can be cut off when the cup body is separated, thereby improving safety.

The above embodiments are only one of the preferred specific embodiments of the present utility model, and the usual changes and replacements made by those skilled in the art within the scope of the technical solution of the present utility model are all included in the protection scope of the present utility model.

Claims

A cup body circuit connection structure for small household appliances, comprising a heating element and an upper coupler, characterized in that: the upper coupler is provided with two first pins for mating contact and electrical connection with the lower coupler and two There are two first connecting terminals electrically connected to the two-pole wiring of the heating element. The two first pins and the two first connecting terminals are connected in one-to-one correspondence. At least one first pin and its corresponding first connecting terminal are connected in series. The high temperature switch is arranged on the upper coupler.
The cup circuit connection structure of small household appliances according to claim 1, characterized in that: the upper coupler is provided with a temperature sensor for sensing the temperature of the inner tank, and the upper coupler is provided with two The lower coupler cooperates to contact the second pins of the electrical connection, and the two second pins are respectively electrically connected to the two poles of the temperature sensor.
The cup circuit connection structure of small household appliances according to claim 1, characterized in that it includes an overflow prevention bar for detecting the height of the liquid level of the cup, and a magnetic switch for detecting the closed state of the lid of the cup, and the upper coupling The device is provided with two third pins for mating contact and electrical connection with the lower coupler and two second connection terminals respectively connected to the third pins. The two second connection terminals are respectively connected to the anti-overflow bar, The magnetic switch is connected in series.
The cup circuit connection structure of a small household appliance according to claim 1, wherein the high-temperature switch is a non-self-resetting high-temperature switch.
The cup circuit connection structure of small household appliances according to claim 1 or 2 or 3 or 4, wherein the upper coupler is provided with two fourth pins for mating contact and electrical connection with the lower coupler , The two fourth pins are electrically connected to each other.