Hydrogen barbecue oven

Abstract

The invention belongs to the technical field of hydrogen cooking equipment, and particularly relates to a hydrogen barbecue oven. The hydrogen barbecue oven according to the present invention comprises: a housing; the oil receiving disc is arranged in the shell; the oil receiving disc divides a part of space in the shell into a combustion chamber positioned above the oil receiving disc and a hydrogen bottle accommodating bin positioned below the oil receiving disc; the hydrogen bottle accommodating bin is used for accommodating a plurality of solid hydrogen storage bottles; the combustor is arranged in the combustion chamber; and the hydrogen conveying assembly is used for conveying hydrogen output by the solid hydrogen storage bottle to the combustor. According to the hydrogen barbecue oven, the solid hydrogen storage bottle is adopted for providing a hydrogen source, the hydrogen is conveyed to the combustor through the hydrogen conveying assembly for combustion, on one hand, compared with a barbecue oven using hydrogen for power generation, the equipment structure is simplified, the production and manufacturing cost is reduced, and meanwhile the portability of the product is improved; and on the other hand, compared with a barbecue oven externally connected with a high-pressure hydrogen tank, the solid hydrogen storage bottle has higher safety and better volume storage density, the occupied storage space can be effectively reduced, the controllability of the hydrogen release speed is ensured, and therefore the safety in the using process is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of hydrogen cooking equipment, specifically relating to a hydrogen barbecue oven. Background Technology

[0002] Hydrogen-fueled barbecue grills are a new type of barbecue equipment that uses hydrogen as fuel. These devices generate heat energy by burning hydrogen or through fuel cell technology, replacing traditional natural gas, liquefied petroleum gas (LPG), electricity, or other fossil fuels. They are characterized by being clean, efficient, and having low carbon emissions.

[0003] There are two main types of existing hydrogen-powered barbecue grills: One type is a barbecue grill that uses hydrogen to generate electricity. For example, patent CN204245969U discloses a hydrogen barbecue grill that first produces hydrogen using a hydrogen production device, then uses the hydrogen to generate electricity. The grill body is connected to the hydrogen power generation device, and finally, the grill body uses electric heating to grill food. However, this method requires the addition of hydrogen production and hydrogen power generation devices, which not only makes the overall equipment structure complex and the manufacturing cost high, but also reduces the portability of the product.

[0004] The second option is a barbecue grill with an external high-pressure hydrogen tank, where a hydrogen tank is connected to the outside of the grill body to directly use hydrogen as a heat source for grilling food. However, this solution uses a high-pressure hydrogen tank, which has the problems of rapid hydrogen release and poor safety due to direct combustion. In addition, high-pressure hydrogen storage has a low volumetric density, requiring a large tank for grilling activities, making it less portable. Summary of the Invention

[0005] The purpose of this invention is to provide a hydrogen-powered barbecue grill to solve one of the aforementioned technical problems.

[0006] This application provides a hydrogen-powered barbecue grill, characterized by comprising: case; An oil receiving tray is disposed inside the housing; the oil receiving tray divides part of the space inside the housing into a combustion chamber located above the oil receiving tray and a hydrogen cylinder storage compartment located below the oil receiving tray; the hydrogen cylinder storage compartment is used to accommodate several solid hydrogen storage cylinders; The burner, located within the combustion chamber; and Hydrogen delivery assembly for delivering hydrogen from solid hydrogen storage cylinders to the burner.

[0007] In one embodiment of this application, the lower surface of the oil receiving tray is provided with several arc-shaped receiving grooves for contacting the solid hydrogen storage cylinder.

[0008] In one embodiment of this application, an oil receiving tray inlet and outlet, and a hydrogen cylinder inlet and outlet communicating with a hydrogen cylinder receiving chamber are provided on one side wall of the housing.

[0009] In one embodiment of this application, a quick-release mechanism for a hydrogen cylinder is provided inside the housing.

[0010] In one embodiment of this application, the burner includes a plurality of combustion tubes; One end of the combustion tube is closed, and the other end is connected to the hydrogen delivery assembly; The combustion tube is provided with several ignition holes.

[0011] In one embodiment of this application, an oil baffle plate is provided in the combustion chamber above the burner; A baking rack is installed above the oil baffle.

[0012] In one embodiment of this application, a piping chamber isolated from the combustion chamber is provided inside the housing; The hydrogen delivery assembly is located in the pipeline chamber.

[0013] In one embodiment of this application, the hydrogen delivery assembly includes: a plurality of integrated valve assemblies, a plurality of output pipes, a manifold, and a plurality of branch pipes; wherein The integrated valve assembly is used to dock with the corresponding solid hydrogen storage cylinder; One end of the output pipe is connected to the integrated valve assembly, and the other end is connected to the manifold. One end of the diverter is connected to the burner, and the other end is connected to the manifold.

[0014] In one embodiment of this application, a one-way valve is provided on the output pipe; A flow regulating valve is installed on the manifold.

[0015] In one embodiment of this application, the output tube is connected to the manifold via a manifold connector; The shunt pipe is connected to the manifold via a shunt connector.

[0016] The beneficial effects of this invention are: Unlike existing technologies, the hydrogen barbecue grill of this invention uses a solid hydrogen storage cylinder to provide a hydrogen source, which is then transported to the burner for combustion via a hydrogen delivery assembly. On the one hand, compared to barbecue grills that use hydrogen to generate electricity, this simplifies the equipment structure, reduces manufacturing costs, and improves product portability. On the other hand, compared to barbecue grills with external high-pressure hydrogen tanks, the solid hydrogen storage cylinder has higher safety and better volumetric storage density, effectively reducing storage space occupation and ensuring controllable hydrogen release rate, thereby improving safety during use.

[0017] By directly contacting the oil receiving pan with the solid hydrogen storage cylinder, the heat in the combustion chamber can be directly transferred to the solid hydrogen storage cylinder. On the one hand, the hydrogen storage cylinder can absorb heat and release hydrogen, and on the other hand, the temperature of the oil receiving pan can be reduced, preventing the temperature in the combustion chamber from becoming too high and improving safety.

[0018] The hydrogen cylinder storage compartment is equipped with a quick-release mechanism. Users can remove the solid hydrogen storage cylinder by pressing a button, and the installation of the hydrogen cylinder can be completed by simply pushing it.

[0019] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a perspective view of a hydrogen-powered barbecue grill according to a preferred embodiment of the present invention; Figure 2 This is a cross-sectional view of a hydrogen-fired barbecue grill according to a preferred embodiment of the present invention; Figure 3 This is a longitudinal sectional view of a hydrogen-fired barbecue grill according to a preferred embodiment of the present invention; Figure 4 This is a schematic diagram of a hydrogen delivery assembly according to a preferred embodiment of the present invention; Figure 5 This is a schematic diagram of the assembly of the oil baffle and the baking rack according to a preferred embodiment of the present invention; Figure 6 This is a schematic diagram of the assembly of the oil receiving tray according to a preferred embodiment of the present invention; Figure 7 This is a schematic diagram of a hydrogen cylinder quick-release mechanism according to a preferred embodiment of the present invention.

[0023] In the picture: 1. Shell 2. Combustion chamber 3. Hydrogen cylinder housing 4. Piping chamber 5. Oil receiving tray inlet / outlet 6. Hydrogen cylinder inlet / outlet 7. Oil receiving tray 8. Solid hydrogen storage cylinder 9. Burner 101. Combustion tube 41. Ignition port 42. Hydrogen delivery assembly 103. Integrated valve assembly 5. Pressure reducing valve 511. Output pipe 52. Manifold 53. Diverter pipe 54. One-way valve 55. Flow regulating valve 56. Manifold connector 57. Diverter connector 58. Hydrogen cylinder quick-release mechanism 6. Button 61. Push rod 62. Transmission block 63. Opening / closing sliding sleeve 64. Male connector 65. Female connector 66. Return spring 67. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] This application provides a hydrogen-powered barbecue grill, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0026] See Figures 1 to 4 In one embodiment, the hydrogen barbecue grill includes: a shell 1; an oil receiving tray 2 disposed within the shell 1; the oil receiving tray 2 dividing a portion of the space within the shell 1 into a combustion chamber 101 located above the oil receiving tray 2 and a hydrogen cylinder receiving chamber 102 located below the oil receiving tray 2; the hydrogen cylinder receiving chamber 102 is used to accommodate a plurality of solid hydrogen storage cylinders 3; a burner 4 disposed within the combustion chamber 101; and a hydrogen delivery assembly 5 for delivering hydrogen output from the solid hydrogen storage cylinders 3 to the burner 4.

[0027] In this embodiment, a solid hydrogen storage cylinder 3 is used to provide a hydrogen source, which is then transported to the burner 4 for combustion via a hydrogen delivery assembly 5. Food can be placed above the burner 4, and an oil collection tray 2 can be used to collect dripping oil.

[0028] In this embodiment, the solid hydrogen storage cylinder 3 can be directly housed within the shell 1 of the hydrogen barbecue grill for gas supply. The hydrogen delivery component 5 directly delivers the hydrogen to the burner 4 for combustion. On the one hand, compared to barbecue grills that use hydrogen to generate electricity, this simplifies the equipment structure, reduces manufacturing costs, and improves product portability. On the other hand, compared to barbecue grills with external high-pressure hydrogen tanks, solid hydrogen storage cylinders offer higher safety and better volumetric storage density, effectively reducing storage space occupation and ensuring controllable hydrogen release rate, thereby improving safety during use.

[0029] In some applications, solid-state hydrogen storage works by combining hydrogen with storage materials through physical or chemical means, fixing the hydrogen in atomic or molecular form within the material. During hydrogen release, the hydride in the storage material needs to absorb heat to undergo a decomposition reaction and release hydrogen. For example, common metal hydride hydrogen storage materials require the absorption of heat to break the chemical bonds between the metal and hydrogen, allowing the hydrogen to be released from the metal hydride.

[0030] In this embodiment, the lower surface of the oil receiving tray 2 is provided with several arc-shaped receiving grooves for contacting the solid hydrogen storage cylinder 3. By directly contacting the oil receiving tray 2 with the solid hydrogen storage cylinder 3, the heat in the combustion chamber 101 can be directly transferred to the solid hydrogen storage cylinder 3. This allows the hydrogen storage cylinder to absorb heat and release hydrogen, while also reducing the temperature of the oil receiving tray 2, preventing the oil in the oil receiving tray 2 from burning due to excessively high temperatures in the combustion chamber 101, thus improving safety. The oil receiving tray 2 can be provided with corresponding arc-shaped receiving grooves according to the number of solid hydrogen storage cylinders 3, which can improve the fit between the oil receiving tray 2 and the solid hydrogen storage cylinder 3.

[0031] Further, see Figure 3 and Figure 6 To facilitate user operation and maintenance, an oil receiving tray inlet / outlet 11 and a hydrogen cylinder inlet / outlet 12 connected to the hydrogen cylinder receiving chamber 102 are provided on one side wall of the housing 1. The oil receiving tray inlet / outlet 11 allows users to easily remove the oil receiving tray 2 for cleaning, while the hydrogen cylinder inlet / outlet 12 facilitates the replacement of the solid hydrogen storage cylinder 3 without disassembling the entire device, greatly improving ease of use.

[0032] In some implementations, the oil receiving pan inlet / outlet 11 and the hydrogen cylinder inlet / outlet 12 can be located on different sides of the housing 1, or they can be located on the same side. When located on the same side, the oil receiving pan inlet / outlet 11 and the hydrogen cylinder inlet / outlet 12 can be spaced apart or connected.

[0033] See Figure 4Optionally, the burner 4 may include a plurality of combustion tubes 41; one end of each combustion tube 41 is closed, and the other end is connected to the hydrogen delivery assembly 5; the combustion tube 41 is provided with a plurality of ignition holes 42. After the hydrogen delivered by the hydrogen delivery assembly 5 enters the combustion tube 41, it can be output from the ignition holes 42 and thus be ignited for combustion.

[0034] In some embodiments, an igniter may be provided inside the housing 1 for igniting the ignition hole 42. Of course, in some embodiments, the user may also use a handheld igniter to ignite the ignition hole 42.

[0035] Optionally, the number of combustion tubes 41 can be one, two, or more; multiple ignition holes 42 can be provided along the extension direction of the combustion tubes 41. The combustion tubes 41 can be stainless steel tubes, and the ignition holes 42 can be small holes with a diameter of 1 mm.

[0036] Furthermore, an oil baffle 7 is installed inside the combustion chamber 101 above the burner 4; a grill rack 8 is installed above the oil baffle 7. The function of the oil baffle 7 is to prevent oil droplets generated during grilling from dripping onto the combustion tube, thereby preventing oil from contaminating or clogging the ignition hole 42. Simultaneously, the grill rack 8 is installed above the oil baffle for placing food to be grilled. The combination of the oil baffle and the grill rack not only improves grilling efficiency but also simplifies subsequent cleaning.

[0037] In some embodiments, the baffle plate 7 can be heated by a flame to generate heat radiation, thereby heating the food on the grill rack 8.

[0038] In some embodiments, see Figure 4 The combustion chamber 101 can be box-shaped, with side walls and openings at both the top and bottom. The bottom can be sealed by the oil receiving pan 2, and the opening at the top can be used to place the oil baffle 7 and the grill 8.

[0039] Optionally, the oil baffle 7 can be configured with an arched structure to facilitate the drainage of oil from the edge of the oil baffle 7 into the oil receiving tray 2. In some embodiments, the oil baffle 7 can also be provided with oil passage holes to facilitate oil drainage. In addition, the number of arches on the oil baffle 7 can be set one-to-one with the number of combustion tubes 41, that is, each combustion tube 41 has an arched structure above it, so that the oil baffle 7 can radiate heat evenly.

[0040] Furthermore, a piping chamber 103, isolated from the combustion chamber 101, is provided within the housing 1; the hydrogen delivery assembly 5 is disposed within the piping chamber 103. This design effectively isolates the hydrogen delivery assembly 5 from the high-temperature combustion environment, reducing potential safety risks. The spatial layout of the piping chamber 103 is reasonable, facilitating the installation and maintenance of the hydrogen delivery assembly.

[0041] In one embodiment, see Figure 3 Optionally, the piping chamber 103 can be located on the left side inside the housing 1, while the combustion chamber 101 and the hydrogen cylinder housing 102 are located on the right side inside the housing 1 and arranged vertically.

[0042] See Figure 4 As an optional embodiment of hydrogen delivery, the hydrogen delivery assembly 5 includes: a plurality of integrated valve assemblies 51, a plurality of output pipes 52, a manifold 53, and a plurality of branch pipes 54; wherein the integrated valve assembly 51 is used to dock with the corresponding solid hydrogen storage cylinder 3; one end of the output pipe 52 is connected to the integrated valve assembly 51, and the other end is connected to the manifold 53; one end of the branch pipe 54 is connected to the burner 4, and the other end is connected to the manifold 53.

[0043] In some embodiments, after the solid hydrogen storage cylinder 3 is connected to the integrated valve assembly 51, the output pipe 52 delivers hydrogen to the manifold 53; the branch pipe 54 distributes hydrogen to each combustion pipe 41 of the burner 4.

[0044] Optionally, the number of solid hydrogen storage cylinders 3 can be one or more. When the number of solid hydrogen storage cylinders 3 is two or more, the number of integrated valve assembly 51 and output pipe 52 are the same as the number of solid hydrogen storage cylinders 3. Each output pipe 52 can deliver the hydrogen output from each solid hydrogen storage cylinder 3 to the manifold 53.

[0045] To improve system safety, optionally, a one-way valve 55 is provided on the output pipe 52 to prevent hydrogen backflow; and a flow regulating valve 56 is provided on the manifold 53 to flexibly adjust the hydrogen supply according to actual needs.

[0046] Furthermore, in some embodiments, the output pipe 52 is connected to the manifold 53 via a manifold connector 57; the branch pipe 54 is connected to the manifold 53 via a branch connector 58. For example, see... Figure 4 The manifold 57 can be a tee pipe used to connect the two output pipes 52 and the manifold 53; the branch pipe 58 can be a tee pipe used to connect the manifold 53 and two branch pipes 54, with the two branch pipes 54 respectively connected to the corresponding combustion pipes 41. Of course, in other embodiments, the manifold 57 and branch pipe 58 can be selected according to the number of pipes to be connected.

[0047] See Figure 3In some embodiments, the integrated valve assembly 51 may include, but is not limited to, a pressure reducing valve 511, a female connector 66, and an opening / closing sleeve 64. The pressure reducing valve regulates the output pressure of hydrogen to meet the stable low-pressure requirements of the fuel unit. A male connector 65 may be provided on the solid hydrogen storage cylinder 3 for mating with the female connector 66. The opening / closing sleeve 64 is used to lock or separate the male connector 65 and the female connector 66. In some embodiments, the mating method of the female connector 66 and the male connector 65 may be, but is not limited to, the method described in patent CN220646894U.

[0048] In one application scenario, the user can insert the solid hydrogen storage cylinder 3 from the hydrogen cylinder inlet / outlet 12 into the hydrogen cylinder receiving chamber 102 and push it inward until the male connector 65 and the female connector 66 are connected.

[0049] See Figure 3 and Figure 7 In some embodiments, a quick-release mechanism 6 for hydrogen cylinders may be provided inside the housing 1 to facilitate control of the opening and closing of the sliding sleeve 64, thereby separating the integrated valve assembly 51 and the corresponding solid hydrogen storage cylinder 3. Optionally, the quick-release mechanism 6 for hydrogen cylinders may include a button 61, a push rod 62, a transmission block 63, and a return spring 67; the push rod 62 is movably disposed inside the housing 1, and the button 61 is disposed on the outer end of the push rod 62; the transmission block 63 is used to connect the push rod 62 and the opening and closing sliding sleeve 64; the inner end of the push rod 62 is fitted with a return spring 67; one end of the return spring 67 may abut against a fixed part inside the housing 1, and the other end may abut against a flange portion on the transmission block 63 or the push rod 62.

[0050] In one application scenario, the user can press button 61, and push rod 62 moves into housing 1. Push rod 62 and transmission block 63 push opening and closing sleeve 64 to move towards the side closer to integrated valve assembly 51, so that male connector 65 on hydrogen cylinder and female connector 66 on integrated valve assembly 51 are separated, and solid hydrogen storage cylinder 3 can be taken out.

[0051] In some embodiments, the quick-release mechanism 6 for hydrogen cylinders can be located below the hydrogen cylinder receiving chamber 102 to facilitate contact between the oil receiving tray 2 and the upper part of the solid hydrogen storage cylinder 3.

[0052] Of course, in other embodiments, other valve assemblies and hydrogen storage cylinder docking methods, as well as quick-release methods, can also be used.

[0053] In summary, the hydrogen grill of this invention achieves an efficient, safe, and convenient hydrogen grilling experience through optimized structural design and functional configuration. Its unique combination of a solid-state hydrogen storage tank and hydrogen delivery components not only simplifies the overall structure of the equipment but also significantly improves its flexibility and safety. Furthermore, the heat exchange design between the drip tray and the solid-state hydrogen storage tank ensures stable hydrogen release while effectively reducing the impact of high temperatures on the equipment, thereby extending its service life. Simultaneously, the modular design allows users to easily perform cleaning and maintenance, further enhancing the product's practicality.

[0054] It should be noted that all the devices (parts whose specific structures are not specified) selected in this application are general standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0055] In the description of the embodiments of the present invention, unless otherwise expressly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections.

[0056] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A hydrogen-powered barbecue grill, characterized in that, include: Shell (1); An oil receiving tray (2) is disposed inside the housing (1); the oil receiving tray (2) divides part of the space inside the housing (1) into a combustion chamber (101) located above the oil receiving tray (2) and a hydrogen cylinder storage chamber (102) located below the oil receiving tray (2); the hydrogen cylinder storage chamber (102) is used to accommodate several solid hydrogen storage cylinders (3). The burner (4) is disposed within the combustion chamber (101); and Hydrogen delivery assembly (5) is used to deliver hydrogen from solid hydrogen storage cylinder (3) to burner (4).

2. The hydrogen-powered barbecue grill according to claim 1, characterized in that, The lower surface of the oil receiving tray (2) is provided with several arc-shaped receiving grooves for contacting the solid hydrogen storage cylinder (3).

3. The hydrogen-powered barbecue grill according to claim 1, characterized in that, The shell (1) has an oil receiving tray inlet / outlet (11) and a hydrogen cylinder inlet / outlet (12) connected to the hydrogen cylinder holding chamber (102) on one side wall.

4. The hydrogen-powered barbecue grill according to claim 1, characterized in that, The housing (1) is equipped with a quick-release mechanism (6) for hydrogen cylinders.

5. The hydrogen-powered barbecue grill according to claim 1, characterized in that, The burner (4) includes a plurality of combustion tubes (41); One end of the combustion tube (41) is closed, and the other end is connected to the hydrogen delivery assembly (5); The combustion tube (41) is provided with several ignition holes (42).

6. The hydrogen-powered barbecue grill according to claim 1, characterized in that, An oil baffle (7) is provided in the combustion chamber (101) above the burner (4). A baking rack (8) is provided above the oil baffle (7).

7. The hydrogen-powered barbecue grill according to claim 1, characterized in that, The housing (1) is provided with a pipe chamber (103) that is isolated from the combustion chamber (101). The hydrogen delivery assembly (5) is located inside the pipeline chamber (103).

8. The hydrogen-powered barbecue grill according to claim 7, characterized in that, The hydrogen delivery assembly (5) includes: several integrated valve assemblies (51), several output pipes (52), a manifold (53), and several branch pipes (54); wherein The integrated valve assembly (51) is used to dock with the corresponding solid hydrogen storage cylinder (3); One end of the output pipe (52) is connected to the integrated valve assembly (51), and the other end is connected to the manifold (53); One end of the diverter (54) is connected to the burner (4), and the other end is connected to the manifold (53).

9. The hydrogen-powered barbecue grill according to claim 8, characterized in that, A one-way valve (55) is provided on the output pipe (52); A flow regulating valve (56) is provided on the manifold (53).

10. The hydrogen-powered barbecue grill according to claim 8, characterized in that, The output pipe (52) is connected to the manifold (53) via the manifold connector (57); The shunt pipe (54) is connected to the manifold (53) via a shunt connector (58).

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