A roaster with uniform heating

Abstract

Provide a roaster with uniform heating. 【Solution means】It includes an upper case 10 and a lower case 11. One side of the upper case and the lower case is connected via a rotating shaft 15, and on the other side, a locking structure for opening and closing the upper case and the lower case is installed. On the opposing surfaces of the upper case and the lower case, grill plates for food heating are installed. The grill plates, the upper case, and the lower case are all connected via connectors, and the grill plates are heated by energization through the connectors. An elastic member is installed between at least one set of the connectors and the upper case and / or the lower case. When food is placed in the grill plate and the case is closed, the food generates pressure on the elastic member to keep the grill plate and the food surface relatively parallel, and the elastic member generates a clamping force on the grill plate against the food.

Description

Technical Field

[0001] The present invention relates to the field of toasters, and more particularly to a toaster with uniform heat reception.

Background Art

[0002] With the development of science and technology, people's living standards have been gradually improving. At the same time, with the influx of Western food culture, it has gradually merged with the local culture, and people have made the selection of food cooking methods more diverse. In people's daily life, people can cook different foods using various different utensils as needed. In the conventional toaster, since the distance between the grill plates is fixed during use, the heat reception degrees of breads with different thicknesses are different, there are differences in the roasting effect and texture after roasting, and the volume of the toaster is relatively large, making it difficult to carry. Also, when roasting inclined foods, it is impossible to keep the grill plate and the food parallel, resulting in excessive heat reception in some areas while insufficient heat reception in some areas, which also affects the edible texture.

[0003] Chinese Patent Publication No. CN219422641U discloses a toaster with uniform heat reception, relating to the technical field of toasters. This toaster, which is uniformly heated and facilitates baking bread, includes a toaster body, a placement assembly, and a heating coil. A protection frame is fixedly attached to the inner wall of the toaster body. The placement assembly is installed inside the protection frame and can place multiple sets of bread slices or bread of various shapes. The heating coil is installed inside the protection frame and can uniformly heat the bread surface. By combining the bracket 1, bracket 2, and the heating coil, the upper and lower surfaces of the bread can be uniformly baked, and the bread surface is easily and uniformly heated. By combining the drawer side plate 1, chute, slider, fixed plate, support rod, drawer panel, and drawer side plate 2, multiple sets of bread slices or bread of various shapes can be placed, which is advantageous for meeting the use of large families and improving the operating efficiency of the toaster. The toaster described in this patent realizes uniform heat reception when baking multiple sets of bread, but its volume is relatively large and it is not easy to carry and use at any time.

[0004] Chinese Patent Publication No. CN218451565U belongs to the field of toasters, specifically an adjustable toaster, which includes a case. Inside the case, an adjustment mechanism is installed. On the case, a placement groove is opened, and inside the placement groove, a placement shelf is installed. In the present invention, by rotating the handle to drive the rotation of the rotating shaft, using the rotating shaft to drive the rotation of the driving wheel, and moving the two racks in opposite directions, the movement of the support frame is driven. When the support frame moves, the movement of the heating assembly is driven through the connecting rod, making it easy to adjust the distance between the heating assembly and the placement shelf. Thereby, the heat per unit time of the bread slices can be adjusted, thereby adjusting the texture of the bread slices to meet the needs of different people. And when the connecting rod drives the movement of the heating assembly, the guide wheels and guide rails installed can not only reduce the frictional force between the connecting rod and the case when the connecting rod moves, but also provide support and guidance for the heating assembly. The toaster described in this patent is not a contact roasting type, but bakes bread on a heating shelf. There are differences in the texture of the baked bread, and when the shape of the bread is different, the phenomenon of uneven heat reception occurs.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The technical problem solved by the present invention is that in the conventional toaster, since the distance between the grill plates is fixed during use, the heat reception degrees of breads with different thicknesses are different, there are differences in the roasting effect and texture after roasting, and the volume of the toaster is relatively large, making it difficult to carry. Moreover, when roasting inclined foods, it is impossible to keep the grill plate and the food parallel, resulting in excessive heat reception in some areas and insufficient heat reception in some areas, which also affects the edible texture. In response to the above defects of the prior art, a toaster with uniform heat reception is provided.

Means for Solving the Problems

[0006] To solve the above technical problems, the technical solution adopted in the present invention is as follows.

[0007] Construct a roaster with uniform heat reception, including a case. The case includes an upper case and a lower case. One side of the upper case and the lower case is connected via a rotating shaft, and on the other side, a locking structure for opening and closing the upper case and the lower case is installed. On the opposing surfaces of the upper case and the lower case, grill plates for food heating are installed. The grill plates, the upper case, and the lower case are all connected via connectors, and the grill plates are heated by being energized through the connectors. Between at least one set of the connectors and the upper case and / or the lower case, elastic members are installed. When food is placed in the grill plate and the case is closed, the food generates pressure on the elastic members to keep the grill plate and the food surface relatively parallel, and the elastic members generate a clamping force on the grill plate for the food.

[0008] Preferably, the grill plate is inserted into the connector and connected to the connector. The connector is provided with bosses, and the bosses are provided with electrode jacks. At the bottom of the connector, conductive electrodes corresponding to the electrode jacks are installed. After the grill plate is inserted into the connector, it is electrically connected to the conductive electrodes. At the bottom of the connector, a plurality of sets of elastic fixing posts are installed, and the elastic members are fixed between the case and the connector via the elastic fixing posts.

[0009] Preferably, the elastic fixing posts are unevenly distributed at the bottom of the connector, and different positions of the grill plate can receive different forces and be inclined. On the outer periphery of the boss, a second slot extending downward is formed, and the grill plate is inserted into the second slot and connected to the connector.

[0010] Preferably, a convex portion is provided on the boss, a stopper groove is provided on the convex portion, a stopper post is provided at the lower end of the grill plate corresponding to the stopper groove, a silicon ring is provided at the upper end of the connector. When the grill plate is inserted into the connector, the silicon ring is disposed between the connector and the grill plate, and a watermark portion is provided inside the silicon ring.

[0011] Preferably, the grill plate includes a cooking layer and a heat insulation layer provided at the bottom of the cooking layer. A grill plate connection member is provided at the bottom of the heat insulation layer. The grill plate connection member is connected to the connector. A heating layer and an insulating layer are provided between the heat insulation layer and the cooking layer, and the insulating layer is disposed between the heating layer and the heat insulation layer.

[0012] Preferably, a heat conduction layer is provided between the heating layer and the insulating layer. The heat conduction layer is in partial contact with the cooking layer. The heat on the upper side of the heating layer is directly transmitted to the cooking layer, and the heat on the lower side is transmitted to the cooking layer after being transmitted to the heat conduction layer. A watermark layer is provided between the insulating layer and the heat insulation layer, and a pressure relief valve corresponding to the watermark layer is provided at the bottom of the heat insulation layer.

[0013] Preferably, both the upper case and the lower case include a bottom case and a surface case. A part of the connector is disposed between the bottom case and the surface case, and a part is disposed above the bottom case and connected to the grill plate. A through hole is provided in the bottom case, and the connector part is connected to the grill plate through the through hole.

[0014] Preferably, an elastic locking member is provided between the bottom case and the grill plate. The elastic locking member limits the left and right movement of the grill plate. A connector stopper post is provided at the lower end of the connector. The connector stopper portion prevents the lower end of the connector from passing through the through hole.

[0015] Preferably, the elastic locking member is disposed on the side surfaces of the bottom case and the surface case, and a spring connected to the surface case is installed at the bottom of the elastic locking member. A stopper bump is installed on the elastic locking member, and a stopper cavity corresponding to the stopper bump is installed on the bottom case. The stopper bump moves on the stopper cavity. The elastic locking member further includes two sets of support lugs, and lugs corresponding to the support lugs are installed on the grill plate. An internal cavity for receiving the grill plate is installed in the bottom case, and a recessed portion is installed in the internal cavity.

[0016] Preferably, a control board is installed in the lower case. The connecting wire is connected to the connector through the control board to conduct electricity, and the control board controls the heating of the grill plate. A radiator is installed at the lower end of the control board, and heat dissipation holes are correspondingly installed on the lower bottom case. Support legs are installed at the lower end of the lower bottom case, and anti-slip pads are installed at the bottoms of the support legs. The locking structure includes a handle installed on the upper case and a locking hole installed on the lower case. A buckle corresponding to the locking hole is installed on the handle. When force is applied to the handle, the buckle can be moved to release the locking effect, and when the buckle is disposed in the locking hole, the case can be locked.

Advantages of the Invention

[0017] The beneficial effects of the present invention are as follows. When the grill plate generates pressure on the food by means of the elastic member, the grill plate is maintained parallel to the food surface, and the elastic member generates pressure on the grill plate against the food, making the contact between the grill plate and the food closer, enhancing the roasting effect on the food. The roasted food has a crispy exterior and a tender interior, with a better texture and more convenient use. At the same time, the second groove installed in the connector also avoids the short circuit caused by the liquid flowing into the connector, improving safety. By connecting both sides of the grill plate to the case via the elastic locking members, the grill plate is given a certain moving distance in the left-right direction and maintained to face forward during engagement. And the volume of the roaster is smaller, making it easier to carry and use in scenarios such as outdoor camping.

Brief Description of the Drawings

[0018] To more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the following further describes the present invention in conjunction with the drawings and embodiments. The drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings based on these drawings without creative efforts.

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Modes for Carrying Out the Invention

[0019] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe while combining the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

[0020] A roaster with uniform heat reception according to a preferred embodiment of the present invention, as shown in FIGS. 1 to 2, includes an upper case 10 and a lower case 11, one end of which is connected via a rotating shaft 15. The upper case and the lower case rotate relative to each other and open and close by the action of the rotating shaft. A buckle structure for locking the opening and closing end or releasing the locked state is installed at the other ends of the upper case and the lower case. Inside the lower case 11, a control board 17 and a knob switch 13 installed on the lower case and connected to the control board are installed. A wiring hole 12 is installed at the rear end of the lower bottom case. The connection wire is connected to the control board through the wiring hole. A support base 14 is further installed around the bottom circumference of the lower bottom case. A foot pad 140 is installed at the bottom of the support base to enhance the anti-slip property of the toaster.

[0021] Specifically, as shown in FIGS. 1 to 3 and FIG. 9, in both the upper case 10 and the lower case 11, a grill plate 16 and a connector 18 connected to the grill plate are installed. The grill plate is fixed in the upper case and the lower case via the connector 18, the control board 17 and the grill plate 16 are connected and conduct electricity via the connector, the opening and closing of the grill plate are controlled by the knob switch 13, and the heating temperature of the grill plate 16 is adjusted. Since the connection structure between the grill plate and the upper case or the lower case is the same, only the connection between the grill plate and the lower case will be described here.

[0022] Furthermore, as shown in FIGS. 3 to 4, an internal cavity 1100 is installed in the lower case 11. The grill plate is disposed in the internal cavity. In order to facilitate the removal of the grill plate from the lower case, recesses 1101 recessed downward are installed on both sides of the internal cavity. A watermark region is formed between the recess and the grill plate, facilitating putting a hand into the recess to remove the grill plate from the lower case for cleaning.

[0023] Furthermore, as shown in FIGS. 3-4 and 7-8, the lower case 11 includes a lower bottom case 110 and a lower surface case 111 connected to the lower bottom case. A gap is provided between the lower bottom case and the lower surface case. The control board 17 is disposed within the gap, and a radiator 170 is connected to the lower end of the control board. Heat dissipation holes 1110 are provided in the radiator corresponding to the lower surface case to enhance the heat dissipation effect of the control board. The internal cavity 1100 is formed by the connection side between the lower bottom case 110 and the upper case being recessed toward the lower surface case, and a through hole is provided at the center of the lower bottom case. The connector 18 is installed through the through hole. The connector 18 includes an upper connector stage 180 installed in the internal cavity and a lower connector stage 181 disposed within the gap. The upper connector stage and the lower connector stage are integrally formed. The radius of the lower connector stage is larger than the radius of the through hole, and the radius of the upper connector stage is smaller than the radius of the through hole. The lower connector stage 181 is fixed to the lower surface case via two sets of springs (not shown). When the springs are in the state of mounting the finished product, the lower and upper connector stages contact the bottom surface of the lower bottom case. When the connector receives a force, the springs are compressed and the connector moves toward the lower surface case. When the connector is not receiving a force, the springs reset to reset the connector.

[0024] Furthermore, as shown in FIGS. 6 to 8, a second slot 1800 is installed in the upper part 180 of the connector, a boss 1801 is formed in the second slot, the second slot is formed between the outer wall of the boss and the inner wall of the connector, a convex portion 1803 is installed at the peripheral part of the upper end of the boss, a notch forming stopper groove 1804 is installed in the convex portion, and an electrode jack 1802 is installed through the central part of the boss. At the lower end of the grill plate 16, a grill plate connecting member 166 is installed corresponding to the connector. When the grill plate connecting member is inserted into the second slot, the grill plate can be connected to the connector. In order to facilitate conduction after insertion, a plurality of sets of electrode pins 1660 are installed in the grill plate connecting member. When the electrode pins are inserted into the electrode jack, they are connected to the conductive electrode to conduct electricity, and at the same time, they play a stopper effect on the connection between the grill plate and the connector. A first slot 1662 is further installed in the grill plate connecting member. When the boss 1801 is inserted into the first slot 1662, the stability of the connection between the grill plate and the connector is further enhanced. Moreover, a stopper block 1661 is further installed in the grill plate connecting member, and the stopper block is engaged in the stopper groove 1804 to play a stopper effect. At the same time, by means of the spring installed at the bottom of the connector, after putting the bread in the grill plate and covering the grill plate, the grill plate can apply pressure to the connector, thereby compressing two sets of springs. And the compressed springs can make the contact between the grill plate and the bread closer. At the same time, due to the installation of the springs, when the thicknesses on both sides of the bread are different, the forces received on both sides are different when clamped, and the compression degrees of the springs are also different, so that the grill plate and the bread can be maintained in a parallel state, the heating of the bread is more uniform, and the baking effect is better. At the same time, it is also applicable to other real objects. In any case, the grill plate and the food can be maintained in parallel, and the spring makes the contact between the grill plate and the food closer, and the baking effect is better. When baking bread-like foods, the inside is crispy, but the outside is crispy, and the edible texture is better.It should be noted that in the present invention, springs are installed on both connectors on both sides of the grill plate. Only one set of springs can be installed, and the other set can be fixedly installed. At this time, the roasting effect on only one side is relatively good, and the food can be turned over after use. However, since the case needs to be opened to turn it over, some moisture may be lost, so the water retention effect is slightly inferior compared to the case where springs are installed on both sides. And by installing the second slot, when oil or other liquids flow into the connector during the cooking of the grill plate, it can be avoided that they enter the second slot, and it can be avoided that the liquid contacts the electrode and causes electric shock, thereby improving the safety of the product.

[0025] Furthermore, as shown in FIGS. 7-8, in order to avoid the disconnection of the connector, a connector stopper post 1810 is installed on the lower side of the connector to further limit the movement of the connector. And a plurality of sets of conductive electrodes 183 are further installed at the lower part of the connector. One end of the conductive electrode is connected to the control board, and the other side is connected to the electrode pin, thereby electrically connecting the control board and the grill plate through the conductive electrode. Two sets of spring fixing posts 1811 are further installed in the lower part of the connector. More sets of spring fixing posts can be installed, and they can be unevenly distributed in the lower part of the connector to adapt the grill plate to the roasting of more foods with different thicknesses, and all can be maintained parallel to the food surface. In order to reduce the buffering force of the connection between the grill plate and the connector, a silicon ring 182 is installed at the connection part between the upper part of the connector and the grill plate. A plurality of sets of silicon ring pins 1820 connected to the connector are installed at the lower part of the silicon ring. A gap can be set between the silicon ring and the upper part of the connector, which can reduce the buffering force when connecting the grill plate and the connector, and also provide a certain buffering force to the grill plate when the food is compressed, which can improve the durability of the connection between the grill plate and the connector, and can also achieve a certain insulation effect.

[0026] Furthermore, as shown in FIGS. 4 to 6, the grill plate 16 includes a cooking layer 160 and a heating layer 161 with one side installed at the lower end of the cooking layer. The heating layer is connected to the electrode pins. At the lower end of the heating layer, a heat conduction layer 163 is installed. At the lower end of the heat conduction layer, an insulating layer 162 is installed. At the lower end of the insulating layer, a heat insulation layer 165 is installed. Between the heat insulation layer and the insulating layer, a translucent layer 164 is installed. After the heating layer starts heating, the heat of its upper layer directly acts on the heating layer, and the heat of the lower layer is transmitted to the heating layer through the heat conduction layer, improving the energy efficiency. The insulating layer avoids electric leakage, while the heat insulation layer avoids the heat being transmitted to the connector and the lower case, which may affect the product's service life. Moreover, the installed translucent layer can improve the heat insulation efficiency. At the lower end of the heat insulation layer, a pressure relief valve 1650 is installed. When the pressure relief valve is opened, the hot air in the translucent layer can be discharged, avoiding the influence on the sealing performance of the grill plate caused by long-term use. To facilitate the fixing of the grill plate, lugs 1600 are further installed on both sides of the grill plate, and the lugs are connected to the lower bottom case.

[0027] Furthermore, as shown in FIGS. 1-2 and FIGS. 9-10, the upper case 10 includes an upper surface case 100 and an upper bottom case 101. The connection method between the upper bottom case and the grill plate 16 and the connector 18 is the same as that of the lower case, which will not be repeatedly described here. The difference is that elastic locking members 19 are further installed on both sides of the upper bottom case 101, and are connected to the grill plate lug through the elastic locking members. The elastic locking member is installed between the upper bottom case and the upper surface case, and two sets of springs 192 connected to the upper surface case are installed at the bottom. The elastic locking member further includes two sets of support lugs 191 installed through the side surface of the upper bottom case. The support lugs contact the lugs to connect the grill plate, and the spring action allows the grill plate to have a certain moving distance in the left-right direction, facilitating the engagement between the upper case and the lower case. And a stopper cavity 1010 is installed on the side surface of the upper bottom case, and a stopper bump 190 arranged in the stopper cavity is installed on the elastic locking member. The moving distance of the stopper bump in the stopper cavity is the left-right moving distance of the grill plate. The elastic locking member for stopping the left-right movement of the grill plate may be installed on the lower bottom case, which can maintain the same effect.

[0028] Furthermore, as shown in FIGS. 4 and 9, a handle 12 is further installed on the upper case 10. The handle includes a buckle 121 installed on the opposite surface of the lower case. A locking hole 1102 is correspondingly installed on the lower case. When the buckle is arranged in the locking hole, the upper case and the lower case are engaged and closed. When a force is applied to the handle, the buckle disengages from the locking hole. At this time, the torsion spring installed on the rotating shaft can open the upper case and the lower case, making the operation more convenient. A plurality of sets of anti-slip strips 120 installed in an inclined manner are further installed on the handle, enhancing the aesthetics of the handle and making it easy to apply force to the handle.

[0029] It should be understood that the present invention is described by way of several embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present invention. Also, based on the teachings of the present invention, these features and embodiments can be modified to fit specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments included within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

**Claim 1** A roaster including a case, the case including an upper case and a lower case, one side of the upper case and the lower case being connected via a rotating shaft, and a locking structure for opening and closing the upper case and the lower case being installed on the other side. Grill plates for food heating are installed on the opposing surfaces of the upper case and the lower case. The grill plates, the upper case, and the lower case are all connected via connectors, and the grill plates are energized and heated by the connectors. An elastic member is installed between at least one set of the connectors and the upper case and / or the lower case. When food is placed in the grill plates and the case is closed, the food generates pressure on the elastic member to maintain the grill plates and the food surface relatively parallel to each other, and the elastic member generates a clamping force on the grill plates against the food. A roaster characterized by the above. **Claim 2** The grill plate is inserted into and connected to the connector. The connector is provided with bosses, and the bosses are provided with electrode jacks. Conductive electrodes corresponding to the electrode jacks are installed at the bottom of the connector. After the grill plate is inserted into the connector, it is electrically connected to the conductive electrodes. A plurality of sets of elastic fixing posts are installed at the bottom of the connector, and the elastic member is fixed between the case and the connector via the elastic fixing posts. The roaster according to claim 1, characterized by the above. **Claim 3** The elastic fixing posts are unevenly distributed at the bottom of the connector, and different positions of the grill plate can receive different forces and be inclined. A second slot is formed on the outer periphery of the boss and extends downward. The grill plate is inserted into the second slot and connected to the connector. The roaster according to claim 2, characterized by the above. **Claim 4** The boss is provided with a convex portion, the convex portion is provided with a stopper groove, a stopper post is provided at the lower end of the grill plate corresponding to the stopper groove, a silicon ring is provided at the upper end of the connector, and when the grill plate is inserted into the connector, the silicon ring is disposed between the connector and the grill plate, and a watermark portion is provided inside the silicon ring. The rotisserie according to claim 3, characterized in that.

5. The grill plate includes a cooking layer and a heat insulation layer installed at the bottom of the cooking layer. A grill plate connecting member is installed at the bottom of the heat insulation layer. The grill plate connecting member is connected to the connector. A heating layer and an insulating layer are installed between the heat insulation layer and the cooking layer. The insulating layer is disposed between the heating layer and the heat insulation layer. The rotisserie according to any one of claims 1 to 4, characterized in that.

6. A heat conduction layer is installed between the heating layer and the insulating layer. The heat conduction layer is partially in contact with the cooking layer. The heat above the heating layer is directly transmitted to the cooking layer, and the heat below is transmitted to the heat conduction layer and then to the cooking layer. A watermark layer is installed between the insulating layer and the heat insulation layer. A pressure relief valve corresponding to the watermark layer is installed at the bottom of the heat insulation layer. The rotisserie according to claim 5, characterized in that.

7. Both the upper case and the lower case include a bottom case and a surface case. A part of the connector is disposed between the bottom case and the surface case, and a part is disposed above the bottom case and connected to the grill plate. The bottom case is provided with a through hole, and the connector part is connected to the grill plate through the through hole. The rotisserie according to claim 1, characterized in that.

8. An elastic locking member is installed between the bottom case and the grill plate. The elastic locking member restricts the left and right movement of the grill plate. A connector stopper post is installed at the lower end of the connector. The connector stopper portion avoids the lower end of the connector passing through the through hole. The rotisserie according to claim 7, characterized in that.

9. The elastic locking member is disposed on the side surfaces of the bottom case and the surface case, and a spring connected to the surface case is installed at the bottom of the elastic locking member. A stopper bump is installed on the elastic locking member, and a stopper cavity corresponding to the stopper bump is installed on the bottom case. The stopper bump moves on the stopper cavity. The elastic locking member further includes two sets of support lugs, and lugs corresponding to the support lugs are installed on the grill plate. An internal cavity for receiving the grill plate is installed on the bottom case, and a recessed portion is installed in the internal cavity. The roaster according to claim 8, characterized in that

10. A control board is installed in the lower case. The connection wire is connected to the connector through the control board to conduct electricity, and the control board controls the heating of the grill plate. A radiator is installed at the lower end of the control board. Heat dissipation holes are installed corresponding to the lower case. Support legs are installed at the lower end of the lower case, and anti-slip pads are installed at the bottoms of the support legs. The locking structure includes a handle installed on the upper case and a locking hole installed on the lower case. A buckle corresponding to the locking hole is installed on the handle. When force is applied to the handle, the buckle can be moved to release the locking effect, and when the buckle is disposed in the locking hole, the case can be locked. The roaster according to claim 1, characterized in that

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