Heat dissipation device for industrial personal computer

Abstract

The invention relates to the technical field of auxiliary heat dissipation of industrial personal computers, in particular to a heat dissipation device of an industrial personal computer. According to the technical scheme, the computer case comprises a case body, a main board is fixedly installed in the case body, a wiring port electrically connected with the main board is fixedly installed on the case body, a radiator is fixedly installed in the case body, the radiator is fixedly connected with the main board, and the computer case further comprises a radiating box fixedly installed on the case body. A plurality of flow guide covers and a gas distribution component are fixedly installed in the heat dissipation box, and the gas distribution component is installed in the heat dissipation box. According to the invention, gas is conveyed to the plurality of flow guide covers through the fan assembly, and the gas entering different flow guide covers is reasonably distributed through the distribution mechanism, so that when the output power of the fan assembly is relatively low, the heat dissipation requirements of different positions of the radiator can be met, and the output power of the fan assembly does not need to be improved, so that the energy consumption can be effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of auxiliary heat dissipation of industrial computers, and in particular to a heat dissipation device for an industrial computer. Background Art

[0002] Industrial computer, or industrial control computer, is a computer system designed for industrial environment. It has a solid shell, reliable performance and strong anti-interference ability, and can operate stably in harsh environments such as high temperature, low temperature, high humidity, vibration, electromagnetic interference, etc. Industrial computer is widely used in automation control, data acquisition, process monitoring, equipment management and other fields. Its main features include: using industrial-grade components to ensure long-term continuous operation; having rich interfaces to facilitate connection with various industrial equipment; supporting multiple operating systems to meet different application requirements; compact structure, easy installation and maintenance. With the continuous improvement of industrial automation level, industrial computer plays an increasingly important role in manufacturing, energy, transportation, medical and other industries.

[0003] Industrial computers mainly include motherboards. As the core of industrial computers, motherboards integrate key components such as CPU, memory, chipset, power management unit, etc., and are the hub for connecting various interfaces and expansion cards. Since the motherboard will generate heat when working, it is necessary to dissipate heat from the motherboard. Generally, the heat sink is in contact with the motherboard, and the heat exchange efficiency is improved by increasing the surface area, and the heat is quickly transferred to the radiator. The air is moved away by the fan, but the heat generation at different positions on the motherboard is different, which will cause uneven heat distribution in different areas of the heat sink fins. Therefore, the fan cannot effectively dissipate heat at various positions of the heat sink when the wind speed is constant. The fan speed needs to be increased to meet the heat dissipation effect at various locations, which is not conducive to reducing energy consumption. Summary of the invention

[0004] The purpose of the present invention is to provide a heat dissipation device for an industrial computer in view of the problems existing in the background technology.

[0005] The technical solution of the present invention is: a heat dissipation device for an industrial computer, comprising a chassis, a mainboard is fixedly installed in the chassis, a wiring port electrically connected to the mainboard is fixedly installed on the chassis, a radiator is fixedly installed in the chassis, and the radiator is fixedly connected to the mainboard, and further comprising: A heat dissipation box fixedly mounted on the chassis, wherein a plurality of air guide covers are fixedly mounted in the heat dissipation box; A gas distribution component is installed inside the heat dissipation box, and includes a fan assembly that provides driving force for the gas, and a distribution mechanism that distributes unequal amounts of gas to different air guide covers when the fan assembly delivers a constant amount of gas, and the distribution mechanism adjusts the proportion of gas entering different air guide covers.

[0006] Optionally, the fan assembly includes a fan fixedly installed inside the heat sink, a dust cover fixedly installed between the fan and the heat sink, an air inlet is opened at the top of the heat sink and on the upper side of the fan, exhaust ports are provided around the heat sink, and filters are installed in the exhaust ports.

[0007] Optionally, a plurality of silicone pads are fixedly mounted on the heat sink, and the silicone pads fit the heating elements on the mainboard.

[0008] Optionally, a diverter box is fixedly mounted on the fan, and a plurality of connecting pipes are fixedly mounted on the diverter box, and the number of the connecting pipes is consistent with the number of the air guide covers.

[0009] Optionally, the distribution mechanism includes a distribution box fixedly mounted on the connecting pipe, one end of the distribution box is provided with a first connecting hole connected to the connecting pipe, the other end of the distribution box is provided with a second connecting hole, a connecting head is fixedly mounted on the distribution box, the connecting head is connected to the second connecting hole, a sealing plate is slidably mounted in the distribution box to seal the second connecting hole, a pull rod is fixedly mounted on the sealing plate, and the distribution mechanism also includes a control component that ensures that the total effective flow area of ​​the plurality of second connecting holes is always kept equal.

[0010] Optionally, the control component includes a first oil barrel fixedly installed inside the heat sink, the pull rod passes through the bottom of the first oil barrel and extends to the interior of the first oil barrel, the ends of the first oil barrel and the pull rod are provided with sealing treatment, an oil tank is fixedly installed in the heat sink, a partition is fixedly installed in the oil tank, the upper and lower ends of multiple first oil barrels are connected to the oil tank, and the first oil barrels are respectively connected to both sides of the partition.

[0011] Optionally, a first sealing head is fixedly mounted on the pull rod, a sealing ring is mounted on the first sealing head, and the first oil barrel and the oil tank are both filled with a first hydraulic medium.

[0012] Optionally, a plurality of groups of positioning members are installed in the heat dissipation box, and the positioning members fix the positions of the pull rods, and the positioning members correspond to the pull rods one by one.

[0013] Optionally, the positioning member includes a second oil barrel fixedly installed in the heat dissipation box, a positioning rod fixedly installed on the first sealing head, a handle fixedly installed on the positioning rod, a second sealing head fixedly installed on the positioning rod, a sealing ring fixedly installed on the second sealing head, connecting pipes fixedly installed on both upper and lower ends of the second oil barrel, a valve fixedly installed between the two connecting pipes, and the second oil barrel, the connecting pipe and the valve are all filled with a second hydraulic medium.

[0014] Optionally, the valve comprises a valve body fixedly mounted on the two connecting pipes. A valve core is rotatably mounted in the valve body, a handle is fixedly mounted on the valve core, and the handle passes through one side of the valve body and extends to the outside of the valve body.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: The present invention conveys gas to multiple air ducts through a fan assembly, and reasonably distributes the gas volume entering different air ducts through a distribution mechanism, so that when the output power of the fan assembly is relatively small, the heat dissipation requirements of different positions of the radiator can be met without increasing the output power of the fan assembly, thereby effectively reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of the heat dissipation device for an industrial computer of the present invention is given; Figure 2 It is a schematic diagram of the position of the radiator of the present invention; Figure 3 Provide a schematic diagram of the structure of the radiator; Figure 4 It is a schematic diagram of the position distribution of the air guide cover in the present invention; Figure 5 A schematic diagram of the structure of the gas distribution component is given. Figure 1 ; Figure 6 A schematic diagram of the structure of the gas distribution component is given. Figure 2 ; Figure 7 A schematic diagram of the structure of the gas distribution component is given. Figure 3 ; Figure 8 for Figure 7 A partial enlarged view of the middle A; Fig. 9 for Figure 7 A partial enlarged view of point B in the middle.

[0017] Figure numerals: 1, chassis; 101, wiring port; 102, radiator; 1021, silicone pad; 2, heat sink; 201, air guide cover; 202, air inlet; 203, exhaust port; 204, dust cover; 3, fan; 301, diverter box; 3031, first connecting hole; 3032, second connecting hole; 302, connecting pipe; 303, distribution box; 304, connector; 305, sealing plate; 306, pull rod; 307, handle; 308, first oil drum; 309, first sealing head; 310, oil tank; 311, partition; 312, first hydraulic medium; 313, second oil drum; 314, connecting pipe; 315, valve body; 316, valve core; 317, handle; 318, positioning rod; 319, second sealing head; 320, second hydraulic medium. DETAILED DESCRIPTION

[0018] The technical solution of the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0020] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0021] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] like Figures 1 to 9As shown, a heat dissipation device for an industrial computer proposed by the present invention includes a chassis 1, a mainboard is fixedly installed in the chassis 1, and a wiring port 101 electrically connected to the mainboard is fixedly installed on the chassis 1, and various industrial equipment can be connected to the industrial computer through the wiring port. A radiator 102 is fixedly installed in the chassis 1, and the radiator 102 is fixedly connected to the mainboard. A plurality of silicone pads 1021 are fixedly installed on the radiator 102, and the silicone pads 1021 are fitted with the heating elements on the mainboard. The heat on the mainboard is conducted by the radiator, so that the heat dissipation efficiency of the mainboard can be improved. It also includes a heat dissipation box 2 fixedly installed on the chassis 1, and a plurality of air guide covers 201 are fixedly installed in the heat dissipation box 2. By placing the air guide covers 201 at various positions inside the heat dissipation box 2, the plurality of air guide covers 201 can cover the entire radiator, and then the air blowing heat can be performed on each position of the radiator 102, and the air output of different air guide covers 201 can be adjusted according to the heat generation of the contact position between the radiator 102 and the mainboard.

[0024] In this embodiment, the heat dissipation device of the industrial computer also includes a gas distribution component, which is installed inside the heat dissipation box 2. The gas distribution component includes a fan component that provides driving force for the gas, and a distribution mechanism that distributes unequal amounts of gas to different air guide covers 201 when the air volume delivered by the fan component is constant. The distribution mechanism adjusts the proportion of the air volume entering different air guide covers 201. By delivering gas to multiple air guide covers 201 through the fan component and reasonably distributing the air volume entering different air guide covers 201 through the distribution mechanism, the heat dissipation requirements of different positions of the radiator can be met when the output power of the fan component is small, without increasing the output power of the fan component, thereby effectively reducing energy consumption.

[0025] Furthermore, the fan assembly includes a fan 3 fixedly installed inside the heat sink 2, a dust cover 204 fixedly installed between the fan 3 and the heat sink 2, an air inlet 202 is provided at the top of the heat sink 2 and on the upper side of the fan 3, an exhaust port 203 is provided around the heat sink 2, and a filter is installed in the exhaust port 203. The gas outside the heat sink 2 can be sucked into the heat sink 2 through the fan 3, and the dust can be prevented from entering the heat sink 2 through the filter, thereby preventing the dust from affecting the radiator 102. A diverter box 301 is fixedly installed on the fan 3, and a plurality of connecting pipes 302 are fixedly installed on the diverter box 301, and the number of the connecting pipes 302 is consistent with the number of the guide cover 201. The gas entering the fan 3 will enter the diverter box 301, and enter the plurality of connecting pipes 302 through the diverter box 301.

[0026] Among them, the distribution mechanism includes a distribution box 303 fixedly installed on the connecting pipe 302, one end of the distribution box 303 is provided with a first connecting hole 3031 connected to the connecting pipe 302, and the other end of the distribution box 303 is provided with a second connecting hole 3032. A connecting head 304 is fixedly installed on the distribution box 303, and the connecting head 304 is connected to the second connecting hole 3032. A sealing plate 305 for blocking the second connecting hole 3032 is slidably installed in the distribution box 303, and a pull rod 306 is fixedly installed on the sealing plate 305. The distribution mechanism also includes a control component that keeps the total effective flow area of ​​the multiple second connecting holes 3032 always equal. The gas entering the connecting pipe 302 will enter the distribution box 303 through the first connecting hole 3031, and enter the connector 304 through the second connecting hole 3032. The connector 304 corresponds to the air guide cover 201 one by one and is connected through the air pipe. By adjusting the effective flow area of ​​the plurality of second connecting holes 3032, the amount of gas entering the air guide cover 201 can be controlled. This is because according to the continuity equation in fluid mechanics, for a closed system, under stable flow conditions, the flow rate through any cross section is constant. This means that if the output power of the fan 3 remains unchanged, the total amount of gas passing through the fan 3 and the second connecting hole 3032 per unit time is fixed. According to the Bernoulli equation in fluid mechanics, the speed of the fluid (here is air) is inversely proportional to the cross-sectional area through which it passes. That is, the smaller the area of ​​the hole, the faster the air passes; conversely, the larger the area of ​​the hole, the slower the air passes. That is, the larger the area of ​​the second connecting hole 3032, the greater the amount of gas passing through the second connecting hole 3032 per unit time.

[0027] Furthermore, the control assembly includes a first oil barrel 308 fixedly mounted inside the heat sink 2, a pull rod 306 passes through the bottom of the first oil barrel 308 and extends to the inside of the first oil barrel 308, the ends of the first oil barrel 308 and the pull rod 306 are provided with sealing treatment, an oil tank 310 is fixedly mounted inside the heat sink 2, a partition 311 is fixedly mounted inside the oil tank 310, the upper and lower ends of the plurality of first oil barrels 308 are connected to the oil tank 310, and the first oil barrels 308 are respectively connected to the two sides of the partition 311. In order to accurately control the ratio of the effective flow areas of the plurality of second connection holes 3032, it is necessary to ensure that the sum of the effective flow areas of the plurality of second connection holes 3032 remains unchanged. When it is necessary to adjust the effective flow area of ​​one of the second connection holes 3032, it is necessary to pull the pull rod 306 to drive the sealing plate 305 to move, and the effective flow area of ​​the second connection hole 3032 can be controlled by adjusting the area of ​​the second connection hole 3032 blocked by the sealing plate 305.

[0028] Among them, the first sealing head 309 is fixedly installed on the pull rod 306, and the first sealing head 309 is installed with a sealing ring. The first oil barrel 308 and the oil tank 310 are filled with the first hydraulic medium 312. When the pull rod 306 is pulled, the first sealing head 309 will be driven to move, and the moving first sealing head 309 will squeeze the first hydraulic medium 312 inside the first oil barrel 308, and the first hydraulic medium 312 will enter the oil tank 310. However, the accommodation space inside the oil tank 310 is limited and cannot be expanded, and then the first hydraulic medium entering the oil tank 310 will enter the other first oil barrels 308 and push the pull rod 306 connected thereto to move, so that when the flow area of ​​one of the second connecting holes 3032 is reduced, the area of ​​the remaining one or more second connecting holes 3032 will increase, which can ensure that the effective flow areas of multiple second connecting holes 3032 are always in an equal state.

[0029] Furthermore, multiple groups of positioning members are installed in the heat dissipation box 2, and the positioning members fix the position of the pull rod 306, and the positioning members correspond to the pull rod 306 one by one. The positioning members include a second oil barrel 313 fixedly installed in the heat dissipation box 2, a positioning rod 318 fixedly installed on the first sealing head 309, a handle 307 fixedly installed on the positioning rod 318, a second sealing head 319 fixedly installed on the positioning rod 318, a sealing ring fixedly installed on the second sealing head 319, connecting pipes 314 fixedly installed at both upper and lower ends of the second oil barrel 313, a valve fixedly installed between the two connecting pipes 314, and the second oil barrel 313, the connecting pipe 314 and the valve are all filled with a second hydraulic medium 320. The positioning piece can be used to control whether the pull rod 306 can move, and further, it can be controlled whether the remaining pull rods 306 can move when adjusting the size of one of the second connecting holes 3032. When the pull rod 306 moves, it will drive the positioning rod 318 to move, and the moving positioning rod 318 will drive the second sealing head 319 to move. When the positioning rod 318 moves upward, the second hydraulic medium 320 located above the second sealing head 319 will flow through the connecting pipe 314 and the valve to the bottom of the second sealing head 319. When the valve is closed, the second hydraulic medium 320 cannot flow, and further, the second sealing head 319 cannot be moved, and further, the positioning rod 318 and the pull rod 306 cannot be moved, so that the size of the second connecting hole 3032 can be fixed.

[0030] In this embodiment, the valve includes a valve body 315 fixedly mounted on two connecting pipes 314. A valve core 316 is rotatably mounted in the valve body 315, and a handle 317 is fixedly mounted on the valve core 316. The handle 317 penetrates one side of the valve body 315 and extends to the outside of the valve body 315. Rotating the handle 317 can drive the valve core 316 to rotate, and rotating the valve core 316 can control whether the valve core 316 blocks the valve body 315, thereby controlling the flow state of the valve body 315.

[0031] The working principle of this embodiment is as follows: the gas outside the heat dissipation box 2 can be sucked into the heat dissipation box 2 through the fan 3, and dust can be prevented from entering the heat dissipation box 2 through the filter screen, so as to prevent the dust from affecting the radiator 102. The gas entering the fan 3 will enter the inside of the shunt box 301, and enter the inside of the plurality of connecting pipes 302 through the shunt box 301. The gas entering the connecting pipe 302 will enter the inside of the distribution box 303 through the first connecting hole 3031, and enter the inside of the connector 304 through the second connecting hole 3032. The connector 304 corresponds to the air guide cover 201 one by one, and is connected through an air pipe. By adjusting the effective flow area of ​​the plurality of second connecting holes 3032, the amount of gas entering the air guide cover 201 can be controlled. When it is necessary to adjust the effective flow area of ​​one of the second connecting holes 3032, it is necessary to pull the pull rod 306 to drive the sealing plate 305 to move, and the effective flow area of ​​the second connecting hole 3032 can be controlled by adjusting the area of ​​the sealing plate 305 blocking the second connecting hole 3032. When the pull rod 306 is pulled, the first sealing head 309 will be driven to move, and the moving first sealing head 309 will squeeze the first hydraulic medium 312 inside the first oil barrel 308, and the first hydraulic medium 312 will enter the oil tank 310. The storage space inside the oil tank 310 is limited and cannot be expanded, and the first hydraulic medium entering the oil tank 310 will enter other first oil barrels 308 and push the pull rod 306 connected thereto to move. As a result, when the flow area of ​​one of the second connecting holes 3032 is reduced, the area of ​​the remaining one or more second connecting holes 3032 will increase, thereby ensuring that the effective flow areas of the multiple second connecting holes 3032 are always equal.

[0032] The positioning piece can be used to control whether the pull rod 306 can move, and further, it can be controlled whether the remaining pull rods 306 can move when adjusting the size of one of the second connecting holes 3032. When the pull rod 306 moves, it will drive the positioning rod 318 to move, and the moving positioning rod 318 will drive the second sealing head 319 to move. When the positioning rod 318 moves upward, the second hydraulic medium 320 located above the second sealing head 319 will flow through the connecting pipe 314 and the valve to the bottom of the second sealing head 319. When the valve is closed, the second hydraulic medium 320 cannot flow, and further, the second sealing head 319 cannot be moved, and further, the positioning rod 318 and the pull rod 306 cannot be moved, so that the size of the second connecting hole 3032 can be fixed.

[0033] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A heat dissipation device for an industrial computer, comprising a chassis (1), a mainboard being fixedly mounted in the chassis (1), a wiring port (101) being fixedly mounted on the chassis (1) and electrically connected to the mainboard, a radiator (102) being fixedly mounted in the chassis (1), the radiator (102) being fixedly connected to the mainboard, characterized in that: Also includes: A heat dissipation box (2) fixedly mounted on the chassis (1), wherein a plurality of air guide covers (201) are fixedly mounted in the heat dissipation box (2); A gas distribution component is installed inside the heat dissipation box (2), and comprises a fan assembly that provides driving force for the gas, and a distribution mechanism that distributes unequal amounts of gas to different air guide covers (201) when the air volume delivered by the fan assembly is constant, and the distribution mechanism adjusts the proportion of the gas volume entering the different air guide covers (201).

2. The heat dissipation device for an industrial computer according to claim 1, characterized in that: The fan assembly comprises a fan (3) fixedly mounted inside a heat sink (2), a dust cover (204) fixedly mounted between the fan (3) and the heat sink (2), an air inlet (202) being provided at the top of the heat sink (2) and located above the fan (3), exhaust ports (203) being provided around the heat sink (2), and a filter screen being installed in the exhaust port (203).

3. The heat dissipation device for an industrial computer according to claim 2, characterized in that: A plurality of silicone pads (1021) are fixedly mounted on the heat sink (102), and the silicone pads (1021) are fitted with the heating elements on the mainboard.

4. The heat dissipation device for an industrial computer according to claim 3, characterized in that: A flow divider box (301) is fixedly mounted on the fan (3), and a plurality of connecting pipes (302) are fixedly mounted on the flow divider box (301), wherein the number of the connecting pipes (302) is the same as the number of the air guide covers (201).

5. The heat dissipation device for an industrial computer according to claim 4, characterized in that: The distribution mechanism includes a distribution box (303) fixedly mounted on a connecting pipe (302), one end of the distribution box (303) is provided with a first connecting hole (3031) connected to the connecting pipe (302), the other end of the distribution box (303) is provided with a second connecting hole (3032), a connecting head (304) is fixedly mounted on the distribution box (303), the connecting head (304) is connected to the second connecting hole (3032), a sealing plate (305) for sealing the second connecting hole (3032) is slidably mounted in the distribution box (303), a pull rod (306) is fixedly mounted on the sealing plate (305), and the distribution mechanism also includes a control component for keeping the total effective flow area of ​​the plurality of second connecting holes (3032) always equal.

6. The heat dissipation device for an industrial computer according to claim 5, characterized in that: The control component comprises a first oil barrel (308) fixedly mounted inside the heat sink (2); the pull rod (306) passes through the bottom of the first oil barrel (308) and extends into the interior of the first oil barrel (308); the ends of the first oil barrel (308) and the pull rod (306) are provided with sealing treatment; an oil tank (310) is fixedly mounted inside the heat sink (2); a partition (311) is fixedly mounted inside the oil tank (310); the upper and lower ends of the plurality of first oil barrels (308) are connected to the oil tank (310); and the first oil barrels (308) are respectively connected to two sides of the partition (311).

7. The heat dissipation device for an industrial computer according to claim 6, characterized in that: A first sealing head (309) is fixedly mounted on the pull rod (306), a sealing ring is mounted on the first sealing head (309), and the first oil barrel (308) and the oil tank (310) are both filled with a first hydraulic medium (312).

8. The heat dissipation device for an industrial computer according to claim 7, characterized in that: A plurality of groups of positioning members are installed in the heat dissipation box (2), the positioning members fix the position of the pull rod (306), and the positioning members correspond to the pull rod (306) one by one.

9. The heat dissipation device for an industrial computer according to claim 8, characterized in that: The positioning member comprises a second oil barrel (313) fixedly mounted in the heat sink (2); a positioning rod (318) fixedly mounted on the first sealing head (309); a handle (307) fixedly mounted on the positioning rod (318); a second sealing head (319) fixedly mounted on the positioning rod (318); a sealing ring fixedly mounted on the second sealing head (319); connecting pipes (314) fixedly mounted on both upper and lower ends of the second oil barrel (313); a valve fixedly mounted between the two connecting pipes (314); and the second oil barrel (313), the connecting pipe (314) and the interior of the valve are all filled with a second hydraulic medium (320).

10. The heat dissipation device for an industrial computer according to claim 9, characterized in that: The valve comprises a valve body (315) fixedly mounted on the two connecting pipes (314). A valve core (316) is rotatably mounted in the valve body (315), a handle (317) is fixedly mounted on the valve core (316), and the handle (317) passes through one side of the valve body (315) and extends to the outside of the valve body (315).

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