WO2021073379A1 - 一种多士炉 - Google Patents

一种多士炉 Download PDF

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Publication number
WO2021073379A1
WO2021073379A1 PCT/CN2020/116992 CN2020116992W WO2021073379A1 WO 2021073379 A1 WO2021073379 A1 WO 2021073379A1 CN 2020116992 W CN2020116992 W CN 2020116992W WO 2021073379 A1 WO2021073379 A1 WO 2021073379A1
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WO
WIPO (PCT)
Prior art keywords
switch
assembly
switch unit
guide shaft
electromagnet
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PCT/CN2020/116992
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English (en)
French (fr)
Inventor
郭建刚
徐德
郑映文
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广东百胜图科技有限公司
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Application filed by 广东百胜图科技有限公司 filed Critical 广东百胜图科技有限公司
Publication of WO2021073379A1 publication Critical patent/WO2021073379A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/06—Roasters; Grills; Sandwich grills
    • A47J37/08—Bread-toasters

Definitions

  • the utility model relates to the technical field of household appliances, in particular to a toaster.
  • Toaster commonly known as automatic bread slice oven, bread toaster, is an electric cooker specially used to re-bake sliced bread. Using it, not only can the slices of bread be baked into browned yellow, but also can make it more scent and taste better, and increase appetite. With the change of users' living habits and the improvement of their living standards, toasters are becoming more and more popular among users.
  • the cavity of the toaster is usually equipped with a sliding rack that can slide up and down. After the food to be baked is put into the cavity, the sliding rack slides into the bottom of the cavity in a vertical direction, and triggers relays and other switch unit components to conduct The furnace bladder further heats the food. After the preset heating time is reached, the controller controls the relay to cut off the heating circuit and bounces the sliding frame.
  • the Chinese utility model patent with the authorized announcement number CN205849313U discloses a toaster, which includes a furnace body and a plurality of bread troughs opened in the furnace body, the bread trough is provided with heating plate components, and the circuit system is equipped with separate control The controller for the energization time of each heating plate assembly, the controller is equipped with a relay or a switch unit.
  • this type of toaster is prone to failing to cut off the heating circuit due to relay failure, posing safety risks and high production costs.
  • the present invention provides a toaster that is safe, reliable and low in production cost.
  • a toaster including: a base, a furnace assembly, a guide shaft, a sliding frame assembly, a reset piece, a switch assembly, an electromagnet, a magnetic sheet and a control device;
  • the furnace assembly, the guide shaft, the switch assembly, and the electromagnet are arranged on the base, the carriage assembly is slidably connected to the guide shaft, and the reset part is connected to the carriage Component connection, the magnetic attraction piece is arranged on the carriage component;
  • the switch assembly includes a first switch unit and a second switch unit, the furnace assembly, the first switch unit, and the second switch unit are connected in series, and the control device is electrically connected to the electromagnet.
  • the control device includes a timing unit;
  • the control device when the carriage assembly is slid to the bottom end of the guide shaft, the first switch unit and the second switch unit are triggered to close to open the furnace assembly, and the control device is directed to the The electromagnet sends a first signal, the electromagnet is energized and attracts the magnetic attraction piece, so that the first switch unit and the second switch unit are kept in a closed state; the furnace assembly is heated to a preset time
  • the control device sends a second signal to the electromagnet
  • the electromagnet loses power and stops attracting the magnetic attraction piece, and the carriage assembly moves toward the top end of the guide shaft under the action of the reset member. Sliding, the first switch unit and/or the second switch unit are turned off.
  • the toaster has better safety, simple structure and lower production cost.
  • the first switch unit includes a first switch linkage rod and a first switch spring assembly, and the carriage assembly can press the first switch linkage rod to conduct the first switch spring assembly.
  • the switch unit adopts a switch linkage rod and a switch shrapnel assembly, which has high reliability, simple structure and low production cost.
  • the first switch unit includes a first micro switch, and the first micro switch is triggered when the carriage assembly slides to the bottom end of the guide shaft.
  • the micro switch has high sensitivity and short action stroke. The small position change of the carriage assembly can quickly cut off the circuit, which is beneficial to improve the safety of the toaster.
  • the second switch unit is a double-on and double-off switch unit.
  • the safety of the double-pass double-break switch unit is better.
  • the second switch unit includes a second switch linkage rod, a third switch linkage rod, a second switch dome assembly, and a third switch dome assembly, and the carriage assembly can simultaneously press against the second switch.
  • the associated moving rod and the third switch linkage rod are opened to conduct the second switch dome assembly through the second switch linkage rod, and conduct the third switch dome assembly through the third switch linkage rod.
  • the switch unit adopts a switch linkage rod and a switch shrapnel assembly, which has high reliability, simple structure and low production cost.
  • the first switch unit includes a first switch dome assembly
  • the second switch unit includes a second switch dome assembly and a third switch dome assembly
  • the sliding frame assembly is provided with a trigger part, so The trigger part is used to respectively conduct the first switch dome assembly, the second switch dome assembly and the third switch dome assembly when the carriage assembly slides to the bottom end of the guide shaft. This is beneficial to further simplify the structure of the switch assembly and reduce the production cost.
  • the first switch dome assembly, the second switch dome assembly, and the third switch dome assembly are all disposed on the side or bottom of the sliding path of the carriage assembly. Arranging the three switch shrapnel components on the side or bottom of the sliding path of the sliding frame component can make full use of the internal space of the toaster, and can also avoid jams between the trigger part and the switch shrapnel component.
  • the guide shaft is arranged on one side of the furnace assembly, the furnace assembly extends to the side to form a connecting part, and the top end of the guide shaft is connected to the connecting part. It is beneficial to simplify the structure of the toaster.
  • the reset member is connected between the connecting portion and the carriage assembly. It is beneficial to further simplify the structure of the toaster.
  • the sliding frame assembly includes a support frame, a triggering portion, and a magnetic sheet seat
  • the support frame is slidably connected to the guide shaft, and the triggering portion and the magnetic sheet seat are connected to the
  • the support frame is fixedly connected, and the magnetic attraction piece is installed on the magnetic attraction piece seat.
  • the first switch unit and the second switch unit can be triggered to turn on the furnace assembly, and the electromagnet attracts the magnetic sheet to make the first The switch unit and the second switch unit remain closed.
  • the electromagnet loses power and stops attracting the magnetic sheet, and the carriage assembly slides on the top of the guide shaft under the action of the reset member.
  • both the first switch unit and the second switch unit can be disconnected, and the furnace assembly is closed; in a fault state, even if one of the first switch unit and the second switch unit fails, either The other disconnection can also cut off the circuit and close the furnace assembly to avoid scorching the food, thereby avoiding safety accidents. It has better safety, simple structure and low production cost.
  • FIG. 1 is a schematic diagram of the three-dimensional structure of the first embodiment of the toaster according to the embodiment of the present invention when the carriage assembly is located at the top of the guide shaft;
  • FIG. 2 is a partial structural diagram of the first embodiment of the toaster according to the embodiment of the present invention when the carriage assembly is located at the top of the guide shaft;
  • FIG. 3 is a schematic side view of the structure of the first embodiment of the toaster according to the present invention when the carriage assembly is located at the bottom end of the guide shaft;
  • FIG. 4 is a partial structural diagram of the first embodiment of the toaster according to the embodiment of the present invention when the carriage assembly is located at the bottom end of the guide shaft;
  • FIG. 5 is a schematic diagram of the cooperation of the carriage assembly and the switch assembly of the first embodiment of the toaster according to the embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of the switch assembly of the first embodiment of the toaster according to the embodiment of the present invention.
  • FIG. 7 is a schematic diagram of the structure of the first switch unit and the second switch unit of the first embodiment of the toaster according to the embodiment of the present invention.
  • Fig. 8 is a partial structural diagram of the second embodiment of the toaster according to the embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of the switch assembly of the second embodiment of the toaster according to the embodiment of the present invention.
  • Fig. 10 is a partial structural diagram of the third embodiment of the toaster according to the embodiment of the present invention.
  • FIG. 11 is a schematic diagram of the structure of the switch assembly of the third embodiment of the toaster according to the embodiment of the present invention.
  • a specific device when it is described that a specific device is located between the first device and the second device, there may or may not be an intermediate device between the specific device and the first device or the second device.
  • the specific device When it is described that a specific device is connected to another device, the specific device may be directly connected to the other device without an intervening device, or may not be directly connected to the other device but with an intervening device.
  • FIG. 1 is a schematic diagram of the structure of the toaster according to the embodiment of the utility model.
  • the toaster according to the embodiment of the utility model includes: a base 1, a bladder assembly 2, a guide shaft 3, a carriage assembly 4, The reset part 5, the switch assembly 6, the electromagnet 7, the magnetic attraction sheet 8 and the control device; wherein the furnace assembly 2, the guide shaft 3, the switch assembly 6 and the electromagnet 7 are all arranged on the base 1, and the carriage assembly 4 slides Is connected to the guide shaft 3, the reset member 5 is connected to the carriage assembly 4, and the magnetic attraction sheet 8 is arranged on the carriage assembly 4;
  • the switch assembly 6 includes a first switch unit 9 and a second switch unit 10, the furnace assembly 2, The first switch unit 9 and the second switch unit 10 are connected in series, the control device is electrically connected to the electromagnet 7, and the control device includes a timing unit.
  • the carriage assembly 4 in the non-use state, is located at the top of the guide shaft 3, as shown in Figs. 1 and 2.
  • the carriage assembly 4 can slide to the guide shaft 3, and trigger the first switch unit 9 and the second switch unit 10 to close, the first switch unit 9, the second switch unit 10 and the circuit where the furnace assembly 2 is closed, the furnace assembly 2 is energized and connected Start heating the food, as shown in Figure 3 and Figure 4.
  • the control device sends a first signal to the electromagnet 7, and the electromagnet 7 is energized and attracts the magnetic attraction piece 8, so that the carriage assembly 4 is kept at the bottom end of the guide shaft 3, that is, it is kept in the trigger position.
  • the positions of the switch unit 9 and the second switch unit 10 keep them in a closed state, and the timing unit starts timing.
  • the control device sends a second signal to the electromagnet 7.
  • the electromagnet 7 loses power and stops attracting the magnetic attraction piece 8, and the carriage assembly 4 is under the action of the reset member 5 to the top of the guide shaft 3. slide.
  • both the first switch unit 9 and the second switch unit 10 can be disconnected, and the furnace assembly 2 is closed; in a fault state, even if one of the first switch unit 9 and the second switch unit 10 appears If the fault occurs, the other of the two disconnects can also cut off the circuit and close the furnace assembly 2 to avoid scorching the food, thereby avoiding safety accidents.
  • the toaster has better safety, simple structure and lower production cost.
  • the toaster may also include a shell (not shown in the figure), the shell may be set on the base 1, the furnace assembly 2, the guide shaft 3, the carriage assembly 4, the reset member 5, and the switch
  • the assembly 6, the electromagnet 7, the magnetic attraction sheet 8, and the control device can all be installed in the housing.
  • the guide shaft 3 can be arranged on one side of the furnace assembly 2, and the furnace assembly 2 extends to the side to form a connecting portion 11.
  • the top end of the guide shaft 3 can be connected to the connecting portion 11, and the guide shaft 3 can be connected to the connecting portion 11.
  • the bottom end of the shaft 3 can be connected to the base 1, so that the guide shaft 3 is connected to the base 1 in a firm and simple structure, which is beneficial to simplify the structure of the toaster.
  • the connecting part 11 can also be used for the installation of the resetting member 5.
  • the resetting member 5 may be a reset spring.
  • the top end of the reset spring can be connected to the connecting part 11, and the bottom end of the reset spring can be connected to the carriage assembly 4, so that the reset The spring can apply a reset elastic force toward the top end of the guide shaft 3 to the carriage assembly 4 through a simple connection structure.
  • the carriage assembly 4 may include a support frame 12, a triggering portion 13, and a magnetic holder 14.
  • the support frame 12 is slidably connected to the guide shaft 3, the bottom end of the reset member 5 can be connected to the support frame 12, and the trigger portion 13
  • the magnetic sheet holder 14 is fixedly connected with the support frame 12, and the magnetic sheet 8 is installed on the magnetic sheet holder 14.
  • the magnetic sheet holder 14 may be in an inverted U-shape, and the magnetic sheet 8 may be installed in the groove of the inverted U-shaped magnetic sheet holder 14.
  • the magnetic sheet 8 may be a permanent magnet or can be The ferromagnetic sheet attracted by the electromagnet 7.
  • the trigger part 13 is used to trigger the first switch unit 9 and the second switch unit 10, and the specific form of the trigger part 13 may vary depending on the form and position of the first switch unit 9 and the second switch unit 10.
  • the first switch unit 9 and the second switch unit 10 may have various forms. As shown in FIGS. 5, 6 and 7, in one embodiment, the first switch unit 9 may include a first switch linkage rod 15 and a first switch dome assembly 16.
  • the second switch unit 10 may be a double-on and double-break switch, and the second switch unit 10 may include a second switch linkage rod 17, a third switch linkage rod 19, a second switch dome assembly 18 and a third switch dome assembly 20.
  • the first switch dome assembly 16, the second switch dome assembly 18, and the third switch dome assembly 20 can be set on the base 1, and the first switch linkage rod 15, the second switch linkage rod 17, and the third switch linkage rod 19 may be set separately It is directly above the first switch dome assembly 16, the second switch dome assembly 18 and the third switch dome assembly 20 and directly below the carriage assembly 4.
  • the carriage assembly 4 When the carriage assembly 4 slides to the bottom end of the guide shaft 3, it can simultaneously press the first switch linkage rod 15, the second switch linkage rod 17, and the third switch linkage rod 19, and the first switch linkage rod 15 presses the first switch
  • the dome assembly 16 conducts the first switch dome assembly 16, the second switch linkage rod 17 presses the second switch dome assembly 18 to conduct the second switch dome assembly 18, and the third switch linkage rod 19 presses the third switch dome assembly 20 to turn on the third switch shrapnel assembly 20, and the furnace bladder assembly 2 starts to heat.
  • the electromagnet 7 loses power and stops attracting the magnetic sheet 8
  • the carriage assembly 4 slides on the top of the guide shaft 3 under the action of the reset member 5.
  • the switch unit adopts a switch linkage rod and a switch shrapnel assembly, which has high reliability, simple structure and low production cost.
  • the switch shrapnel assembly includes two shrapnels, the two shrapnels are at least partially overlapped and have a gap, and can contact each other under the pressure of the switch linkage rod to conduct the circuit.
  • the first switch unit 9 may include a first micro switch 21.
  • the first micro switch 21 can be arranged on the base 1 and corresponds to the carriage assembly 4.
  • the second switch unit 10 may also be a double-on and double-break switch, and the second switch unit 10 may include a second switch linkage rod 17, a third switch linkage rod 19, a second switch dome assembly 18, and a third switch dome assembly 20.
  • the first micro switch 21 can be triggered and pressed against the second switch linkage rod 17 and the third switch linkage rod 19, the second switch linkage rod 17 and the third switch linkage rod 17 Opening the associated moving rod 19 can trigger the second switch dome assembly 18 and the third switch dome assembly 20 respectively.
  • the first micro switch 21 can be automatically turned off.
  • the micro switch has high sensitivity and short action stroke. A slight position change of the carriage assembly 4 can quickly cut off the circuit, which is beneficial to improve the safety of the toaster.
  • the first switch unit 9 may include a first switch dome assembly 16, and the second switch unit 10 includes a second switch dome assembly 18 and a third switch dome assembly 20 ,
  • the sliding frame assembly 4 is provided with a triggering portion 13, which is used to respectively conduct the first switch dome assembly 16, the second switch dome assembly 18, and the third switch when the sliding frame assembly 4 slides to the bottom end of the guide shaft 3.
  • Switch shrapnel assembly 20 This is beneficial to further simplify the structure of the switch assembly 6 and reduce the production cost.
  • the first switch dome assembly 16, the second switch dome assembly 18, and the third switch dome assembly 20 can be arranged side by side of the sliding path of the carriage assembly 4.
  • a cross bar can be provided on the support frame 12 as the triggering portion 13, so that the cross bar and the projections of the three switch shrapnel components in the vertical direction can at least partially overlap.
  • the support frame 12 When sliding to the bottom end of the guide shaft 3, the crossbar can interfere with the three switch shrapnel components and trigger the three switch shrapnel components.
  • Arranging the three switch shrapnel assemblies on the side of the sliding path of the carriage assembly 4 can make full use of the internal space of the toaster, and can also avoid jams between the trigger portion 13 and the switch shrapnel assembly.
  • three switch shrapnel assemblies can also be arranged at the bottom of the sliding path of the carriage assembly 4.
  • the toaster of the embodiment of the utility model has better safety, simple structure and lower production cost.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Electric Stoves And Ranges (AREA)

Abstract

一种多士炉，其包括：底座（1）、炉胆组件（2）、导轴（3）、滑架组件（4）、复位件（5）、开关组件（6）、电磁铁（7）、磁吸片（8）及控制装置；开关组件（6）包括第一开关单元（9）和第二开关单元（10），炉胆组件（2）、第一开关单元（9）和第二开关单元（10）串联连接，控制装置与电磁铁（7）电连接，控制装置包括一计时单元；其中，滑架组件（4）滑动至导轴（3）的底端时触发第一开关单元（9）和第二开关单元（10）使其闭合，以开启炉胆组件（2），电磁铁（7）得电并吸引磁吸片（8），以使第一开关单元（9）和第二开关单元（10）保持闭合状态；炉胆组件（2）加热至预设时间时，电磁铁（7）失电停止吸引磁吸片（8），滑架组件（4）在复位件（5）的作用下向导轴（3）的顶端滑动，第一开关单元（9）和/或第二开关单元（10）断开。该多士炉具有较好的安全性，并且结构简单，生产成本较低。

Description

一种多士炉 技术领域
本实用新型涉及家用电器技术领域，尤其涉及一种多士炉。
背景技术
多士炉，俗称自动面包片烤炉、面包烘烤器，是一种专门用于将切成片状的面包重新烘烤的电热炊具。使用它，不仅可以将面包片烤成焦黄色，还能使其香味更浓和口感更好，增进食欲。随着用户生活习惯的改变和生活水平的提高，多士炉越来越受用户欢迎。
多士炉的炉腔内通常设有可上下滑动的滑动架，在待烘烤食物放入炉腔后，滑动架沿竖直方向滑入炉腔底部，并触发继电器等开关单元部件以导通炉胆，进而对食物进行加热，达到预设加热时间后，控制器控制继电器切断加热电路，并将滑动架弹起。如授权公告号为CN205849313U的中国实用新型专利公开了一种多士炉，其包括炉体和开设在炉体内的多个面包槽，面包槽内设有发热板组件，电路系统内设有分别调控各发热板组件的通电时间的控制器，控制器内设有继电器或开关单元。但这类多士炉容易因继电器故障而导致加热电路无法切断，存在安全隐患，并且生产成本较高。
实用新型内容
针对现有技术中存在的上述技术问题，本实用新型提供了一种安全可靠且生产成本较低的多士炉。
为解决上述问题，本实用新型实施例提供的技术方案是：
一种多士炉，包括：底座、炉胆组件、导轴、滑架组件、复位件、开关组件、电磁铁、磁吸片及控制装置；
所述炉胆组件、所述导轴、所述开关组件及所述电磁铁设置在所述底座上，所述滑架组件滑动连接在所述导轴上，所述复位件与所述滑架组件连接，所述磁吸片设置在所述滑架组件上；
所述开关组件包括第一开关单元和第二开关单元，所述炉胆组件、所述第一开关单元和所述第二开关单元串联连接，所述控制装置与所述电磁铁电连接，所述控制装置包括一计时单元；
其中，所述滑架组件滑动至所述导轴的底端时触发所述第一开关单元和所述第二开关单元使其闭合，以开启所述炉胆组件，所述控制装置向所述电磁铁发送第一信号，所述电磁铁得电并吸引所述磁吸片，以使所述第一开关单元和所述第二开关单元保持闭合状态；所述炉胆组件加热至预设时间时，所述控制装置向所述电磁铁发送第二信号，所述电磁铁失电停止吸引所述磁吸片，所述滑架组件在所述复位件的作用下向所述导轴的顶端滑动，所述第一开关单元和/或所述第二开关单元断开。该多士炉具有较好的安全性，结构简单，生产成本较低。
在一些实施例中，所述第一开关单元包括第一开关联动杆和第一开关弹片组件，所述滑架组件能够抵压所述第一开关联动杆，以导通所述第一开关弹片组件。开关单元采用开关联动杆和开关弹片组件，可靠性较高，结构简单，且生产成本较低。
在一些实施例中，所述第一开关单元包括第一微动开关，所述滑架组件滑动至所述导轴的底端时触发所述第一微动开关。微动开关的灵敏度较高，动作行程短，滑架组件微小位置变化即能够使其快速切断电路，有益于提高该多士炉的安全性。
在一些实施例中，所述第二开关单元为双通双断开关单元。双通双断开关单元的安全性较好。
在一些实施例中，所述第二开关单元包括第二开关联动杆、第三开关联动杆、第二开关弹片组件和第三开关弹片组件，所述滑架组件能够同时抵压所述第二开关联动杆和第三开关联动杆，以通过所述第二开关联动杆导通所述第二开关弹片组件，并通过所述第三开关联动杆导通所述第三开关弹片组件。开关单元采用开关联动杆和开关弹片组件，可靠性较高，结构简单，且生产成本较低。
在一些实施例中，所述第一开关单元包括第一开关弹片组件，所述第二开关单元包括第二开关弹片组件和第三开关弹片组件，所述滑架组件上设有触发部，所述触发部用于在所述滑架组件滑动至所述导轴的底端时分别导通所述第一开关弹片组件、所述第二开关弹片组件及所述第三开关弹片组件。这样有益于进一步简化开关组件的结构，降低生产成本。
在一些实施例中，所述第一开关弹片组件、所述第二开关弹片组件和所述第三开关弹片组件均设置在所述滑架组件滑动路径的侧方或底部。将三个 开关弹片组件设置在滑架组件滑动路径的侧方或底部能够充分利用多士炉的内部空间，还能够避免触发部与开关弹片组件之间发生卡顿。
在一些实施例中，所述导轴设置在所述炉胆组件的一侧，所述炉胆组件向该侧延伸形成一连接部，所述导轴的顶端与所述连接部连接。有益于简化该多士炉的结构。
在一些实施例中，所述复位件连接在所述连接部和所述滑架组件之间。有益于进一步简化该多士炉的结构。
在一些实施例中，所述滑架组件包括支撑架、触发部和磁吸片座，所述支撑架滑动连接在所述导轴上，所述触发部和所述磁吸片座与所述支撑架固定连接，所述磁吸片安装在所述磁吸片座上。
与现有技术相比，本实用新型实施例的有益效果在于：
本实用新型实施例的多士炉，滑架组件滑动至导轴的底端时，能够触发第一开关单元和第二开关单元以开启炉胆组件，电磁铁吸引磁吸片，能够使第一开关单元和第二开关单元保持闭合。炉胆组件加热至预设时间时，电磁铁失电停止吸引磁吸片，滑架组件在复位件的作用下向导轴的顶端滑动。在正常情况下，第一开关单元和第二开关单元均能够断开，炉胆组件关闭；在故障状态下，即使第一开关单元和第二开关单元两者中的一个出现故障，二者中的另一个断开也能够切断电路，关闭炉胆组件，避免将食物烤焦，进而避免产生安全事故，具有较好的安全性，结构简单，生产成本较低。
附图说明
在不一定按比例绘制的附图中，相同的附图标记可以在不同的视图中描述相似的部件。具有字母后缀或不同字母后缀的相同附图标记可以表示相似部件的不同实例。附图大体上通过举例而不是限制的方式示出各种实施例，并且与说明书以及权利要求书一起用于对所公开的实施例进行说明。在适当的时候，在所有附图中使用相同的附图标记指代同一或相似的部分。这样的实施例是例证性的，而并非旨在作为本装置或方法的穷尽或排他实施例。
图1为本实用新型实施例的多士炉的第一种实施例滑架组件位于导轴的顶端时的立体结构示意图；
图2为本实用新型实施例的多士炉的第一种实施例滑架组件位于导轴的顶端时的部分结构示意图；
图3为本实用新型实施例的多士炉的第一种实施例滑架组件位于导轴的底端时的侧视结构示意图；
图4为本实用新型实施例的多士炉的第一种实施例滑架组件位于导轴的底端时的部分结构示意图；
图5为本实用新型实施例的多士炉的第一种实施例滑架组件和开关组件的配合示意图；
图6为本实用新型实施例的多士炉的第一种实施例的开关组件的结构示意图；
图7为本实用新型实施例的多士炉的第一种实施例的第一开关单元和第二开关单元的结构示意图；
图8为本实用新型实施例的多士炉的第二种实施例的部分结构示意图；
图9为本实用新型实施例的多士炉的第二种实施例的开关组件的结构示意图；
图10为本实用新型实施例的多士炉的第三种实施例的部分结构示意图；
图11为本实用新型实施例的多士炉的第三种实施例的开关组件的结构示意图。
附图标记说明：
1-底座；2-炉胆组件；3-导轴；4-滑架组件；5-复位件；6-开关组件；7-电磁铁；8-磁吸片；9-第一开关单元；10-第二开关单元；11-连接部；12-支撑架；13-触发部；14-磁吸片座；15-第一开关联动杆；16-第一开关弹片组件；17-第二开关联动杆；18-第二开关弹片组件；19-第三开关联动杆；20-第三开关弹片组件；21-第一微动开关。
具体实施方式
为使本领域技术人员更好的理解本实用新型的技术方案，下面结合附图和具体实施方式对本实用新型作详细说明。下面结合附图和具体实施例对本实用新型的实施例作进一步详细描述，但不作为对本实用新型的限定。
本实用新型中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的部分。“包括”或者“包含”等类似的词语意指在该词前的要素涵盖在该词后列举的要素，并不排除也涵盖其他要素的可能。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
在本实用新型中，当描述到特定器件位于第一器件和第二器件之间时，在该特定器件与第一器件或第二器件之间可以存在居间器件，也可以不存在居间器件。当描述到特定器件连接其它器件时，该特定器件可以与所述其它器件直接连接而不具有居间器件，也可以不与所述其它器件直接连接而具有居间器件。
本实用新型使用的所有术语(包括技术术语或者科学术语)与本实用新型所属领域的普通技术人员理解的含义相同，除非另外特别定义。还应当理解，在诸如通用字典中定义的术语应当被解释为具有与它们在相关技术的上下文中的含义相一致的含义，而不应用理想化或极度形式化的意义来解释，除非这里明确地这样定义。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为说明书的一部分。
图1为本实用新型实施例的多士炉的结构示意图，参见图1所示，本实用新型实施例的多士炉包括：底座1、炉胆组件2、导轴3、滑架组件4、复位件5、开关组件6、电磁铁7、磁吸片8及控制装置；其中，炉胆组件2、导轴3、开关组件6及电磁铁7均设置在底座1上，滑架组件4滑动连接在导轴3上，复位件5与滑架组件4连接，磁吸片8设置在滑架组件4上；开关组件6包括第一开关单元9和第二开关单元10，炉胆组件2、第一开关单元9和第二开关单元10串联连接，控制装置与电磁铁7电连接，控制装置包括一计时单元。
本实用新型实施例的多士炉，在非使用状态，滑架组件4位于导轴3的顶端，如图1和图2所示。使用时，用户可向炉胆组件2内放入食物，在食物的抵压下、在用户的按压下或者在多士炉自带的驱动机构的驱动下，滑架组件4能够滑动至导轴3的底端，并触发第一开关单元9和第二开关单元10使其闭合，第一开关单元9、第二开关单元10和炉胆组件2所在的电路闭合，炉胆组件2得电并开始加热食物，如图3和图4所示。与此同时，控制装置向电磁铁7发送第一信号，电磁铁7得电并吸引磁吸片8，以使滑架组件4保持在导轴3的底端位置，也即保持在触发第一开关单元9和第二开关单元10的位置，使二者保持闭合状态，并且计时单元开始计时。炉胆组件2加热至预设时间时，控制装置向电磁铁7发送第二信号，电磁铁7失电停止吸引磁吸片8，滑架组件4在复位件5的作用下向导轴3的顶端滑动。在正常情 况下，第一开关单元9和第二开关单元10均能够断开，炉胆组件2关闭；在故障状态下，即使第一开关单元9和第二开关单元10两者中的一个出现故障，二者中的另一个断开也能够切断电路，关闭炉胆组件2，避免将食物烤焦，进而避免产生安全事故。该多士炉具有较好的安全性，且结构简单，生产成本较低。
在具体实施时，该多士炉还可包括壳体(图中未示出)，壳体可设置在底座1上，炉胆组件2、导轴3、滑架组件4、复位件5、开关组件6、电磁铁7、磁吸片8及控制装置等均可安装在壳体内。
配合图1和图3所示，导轴3可设置在炉胆组件2的一侧，炉胆组件2向该侧延伸形成一连接部11，导轴3的顶端可与连接部11连接，导轴3的底端可与底座1连接，使导轴3通过一种牢固且结构简单的方式连接在底座1上，有益于简化该多士炉的结构。
复位件5的安装也可利用该连接部11，复位件5具体可为复位弹簧，复位弹簧的顶端可与该连接部11连接，复位弹簧的底端可与滑架组件4连接，这样，复位弹簧能够通过一种简单连接结构向滑架组件4施加朝向导轴3的顶端的复位弹性力。
滑架组件4可包括支撑架12、触发部13和磁吸片座14，支撑架12可滑动地连接在导轴3上，复位件5的底端可与该支撑架12连接，触发部13和磁吸片座14与支撑架12固定连接，磁吸片8安装在磁吸片座14上。例如，该磁吸片座14可呈倒U形，磁吸片8可安装在该倒U形的磁吸片座14的槽内，该磁吸片8可为永磁铁，也可为能够被电磁铁7吸附的铁磁性片材。触发部13用于触发第一开关单元9和第二开关单元10，触发部13的具体形式可因第一开关单元9和第二开关单元10的形式和位置而异。
在具体实施过程中，第一开关单元9和第二开关单元10可以有多种形式。配合图5、图6及图7所示，在一个实施例中，第一开关单元9可包括第一开关联动杆15和第一开关弹片组件16。第二开关单元10可为双通双断开关，第二开关单元10可包括第二开关联动杆17、第三开关联动杆19、第二开关弹片组件18和第三开关弹片组件20。第一开关弹片组件16、第二开关弹片组件18和第三开关弹片组件20可设置在底座1上，第一开关联动杆15、第二开关联动杆17和第三开关联动杆19可分别设置在第一开关弹片组件16、第二开关弹片组件18和第三开关弹片组件20的正上方且位于滑架组件4的 正下方。当滑架组件4滑动至导轴3底端时，能够同时抵压第一开关联动杆15、第二开关联动杆17和第三开关联动杆19，第一开关联动杆15抵压第一开关弹片组件16以导通第一开关弹片组件16，第二开关联动杆17抵压第二开关弹片组件18以导通第二开关弹片组件18，第三开关联动杆19抵压第三开关弹片组件20以导通第三开关弹片组件20，炉胆组件2开始加热。当电磁铁7失电停止吸引磁吸片8时，滑架组件4在复位件5的作用下向导轴3的顶端滑动，各开关弹片组件在弹片自身的弹性复位力的作用下或在其他弹性件的作用下能够断开。开关单元采用开关联动杆和开关弹片组件，可靠性较高，结构简单，且生产成本较低。具体的，开关弹片组件包括两个弹片，两个弹片至少部分叠置且具有间隙，在开关联动杆的抵压下能够互相接触以导通电路。
配合图8、图9所示，在另一个实施例中，第一开关单元9可包括第一微动开关21。第一微动开关21可设置在底座1上且与滑架组件4相对应。第二开关单元10也可为双通双断开关，第二开关单元10可包括第二开关联动杆17、第三开关联动杆19、第二开关弹片组件18和第三开关弹片组件20。当滑架组件4滑动至导轴3的底端时，能够触发第一微动开关21，并抵压第二开关联动杆17和第三开关联动杆19，第二开关联动杆17和第三开关联动杆19能够分别触发第二开关弹片组件18和第三开关弹片组件20。当滑架组件4向导轴3的顶端滑动时，第一微动开关21能够自动断开。微动开关的灵敏度较高，动作行程短，滑架组件4微小位置变化即能够使其快速切断电路，有益于提高该多士炉的安全性。
配合图10、图11所示，在又一个实施例中，该第一开关单元9可包括第一开关弹片组件16，第二开关单元10包括第二开关弹片组件18和第三开关弹片组件20，滑架组件4上设有触发部13，触发部13用于在滑架组件4滑动至导轴3的底端时分别导通第一开关弹片组件16、第二开关弹片组件18及第三开关弹片组件20。这样有益于进一步简化开关组件6的结构，降低生产成本。例如，可在滑架组件4的滑动路径的侧方并列设置第一开关弹片组件16、第二开关弹片组件18和第三开关弹片组件20，在具体实施时，可将这三个开关弹片组件安装在壳体的内侧面上，可在支撑架12上设置一横杆作为触发部13，可使该横杆与三个开关弹片组件在竖直方向的投影至少部分重叠，如此，支撑架12滑动至导轴3的底端时，横杆就能够与三个开关弹片组 件相干涉并触发三个开关弹片组件。将三个开关弹片组件设置在滑架组件4滑动路径的侧方能够充分利用多士炉的内部空间，还能够避免触发部13与开关弹片组件之间发生卡顿。当然，也可将三个开关弹片组件设置在滑架组件4滑动路径的底部。
本实用新型实施例的多士炉，具有较好的安全性，并且结构简单，生产成本较低。
以上描述旨在是说明性的而不是限制性的。例如，上述示例(或其一个或更多方案)可以彼此组合使用。例如本领域普通技术人员在阅读上述描述时可以使用其它实施例。另外，在上述具体实施方式中，各种特征可以被分组在一起以简单化本实用新型。这不应解释为一种不要求保护的公开的特征对于任一权利要求是必要的意图。相反，本实用新型的主题可以少于特定的公开的实施例的全部特征。从而，以下权利要求书作为示例或实施例在此并入具体实施方式中，其中每个权利要求独立地作为单独的实施例，并且考虑这些实施例可以以各种组合或排列彼此组合。本实用新型的范围应参照所附权利要求以及这些权利要求赋权的等同形式的全部范围来确定。
以上实施例仅为本实用新型的示例性实施例，不用于限制本实用新型，本实用新型的保护范围由权利要求书限定。本领域技术人员可以在本实用新型的实质和保护范围内，对本实用新型做出各种修改或等同替换，这种修改或等同替换也应视为落在本实用新型的保护范围内。

Claims (10)

  1. 一种多士炉，其特征在于，包括：底座、炉胆组件、导轴、滑架组件、复位件、开关组件、电磁铁、磁吸片及控制装置；
    所述炉胆组件、所述导轴、所述开关组件及所述电磁铁设置在所述底座上，所述滑架组件滑动连接在所述导轴上，所述复位件与所述滑架组件连接，所述磁吸片设置在所述滑架组件上；
    所述开关组件包括第一开关单元和第二开关单元，所述炉胆组件、所述第一开关单元和所述第二开关单元串联连接，所述控制装置与所述电磁铁电连接，所述控制装置包括一计时单元；
    其中，所述滑架组件滑动至所述导轴的底端时触发所述第一开关单元和所述第二开关单元使其闭合，以开启所述炉胆组件，所述控制装置向所述电磁铁发送第一信号，所述电磁铁得电并吸引所述磁吸片，以使所述第一开关单元和所述第二开关单元保持闭合状态；所述炉胆组件加热至预设时间时，所述控制装置向所述电磁铁发送第二信号，所述电磁铁失电停止吸引所述磁吸片，所述滑架组件在所述复位件的作用下向所述导轴的顶端滑动，所述第一开关单元和/或所述第二开关单元断开。
  2. 根据权利要求1所述的多士炉，其特征在于，所述第一开关单元包括第一开关联动杆和第一开关弹片组件，所述滑架组件能够抵压所述第一开关联动杆，以导通所述第一开关弹片组件。
  3. 根据权利要求1所述的多士炉，其特征在于，所述第一开关单元包括第一微动开关，所述滑架组件滑动至所述导轴的底端时触发所述第一微动开关。
  4. 根据权利要求1所述的多士炉，其特征在于，所述第二开关单元为双通双断开关单元。
  5. 根据权利要求4所述的多士炉，其特征在于，所述第二开关单元包括第二开关联动杆、第三开关联动杆、第二开关弹片组件和第三开关弹片组件，所述滑架组件能够同时抵压所述第二开关联动杆和第三开关联动杆，以通过所述第二开关联动杆导通所述第二开关弹片组件，并通过所述第三开关联动杆导通所述第三开关弹片组件。
  6. 根据权利要求1所述的多士炉，其特征在于，所述第一开关单元包括第一开关弹片组件，所述第二开关单元包括第二开关弹片组件和第三开关弹片组件，所述滑架组件上设有触发部，所述触发部用于在所述滑架组件滑动 至所述导轴的底端时分别导通所述第一开关弹片组件、所述第二开关弹片组件及所述第三开关弹片组件。
  7. 根据权利要求6所述的多士炉，其特征在于，所述第一开关弹片组件、所述第二开关弹片组件和所述第三开关弹片组件均设置在所述滑架组件滑动路径的侧方或底部。
  8. 根据权利要求1所述的多士炉，其特征在于，所述导轴设置在所述炉胆组件的一侧，所述炉胆组件向该侧延伸形成一连接部，所述导轴的顶端与所述连接部连接。
  9. 根据权利要求8所述的多士炉，其特征在于，所述复位件连接在所述连接部和所述滑架组件之间。
  10. 根据权利要求1所述的多士炉，其特征在于，所述滑架组件包括支撑架、触发部和磁吸片座，所述支撑架滑动连接在所述导轴上，所述触发部和所述磁吸片座与所述支撑架固定连接，所述磁吸片安装在所述磁吸片座上。
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CN211093526U (zh) * 2019-10-14 2020-07-28 广东百胜图科技有限公司 一种多士炉
WO2022041199A1 (zh) * 2020-08-31 2022-03-03 东莞市凝锐开关有限公司 一种自恢复一体式的强制断电多士炉开关

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