阅读说明：本技术 一种发动机保护装置及发动机 (Engine protection device and engine ) 是由 张立 何元章 许国松 陈雨 李佳 于 2021-08-18 设计创作，主要内容包括：本发明公开了一种发动机保护装置及发动机,涉及发动机技术领域,发动机保护装置安装在发动机的壳体上,该保护装置包括保护板、散热组件和温度开关,保护板上设置有散热孔；多个散热组件依次间隔设置在保护板上；温度开关与散热组件对应设置,每个温度开关包括筒体和活塞,活塞活动设置在筒体内以在所述筒体内形成第一腔室和可充满氢气的第二腔室,活塞上设置有位于第一腔室内的第一开关体,第一腔室的内壁上设置有可与第一开关体接触或分离的第二开关体。该装置既具有良好的稳定性,还可以提高发动机的散热效率,延长了发动机的使用寿命,满足使用需求的目的。(The invention discloses an engine protection device and an engine, and relates to the technical field of engines, wherein the engine protection device is arranged on a shell of the engine and comprises a protection plate, a heat dissipation assembly and a temperature switch, wherein the protection plate is provided with heat dissipation holes; the plurality of radiating assemblies are sequentially arranged on the protective plate at intervals; the temperature switches are arranged corresponding to the heat dissipation assemblies, each temperature switch comprises a cylinder and a piston, the piston is movably arranged in the cylinder to form a first cavity and a second cavity which can be filled with hydrogen in the cylinder, a first switch body which is positioned in the first cavity is arranged on the piston, and a second switch body which can be in contact with or separated from the first switch body is arranged on the inner wall of the first cavity. The device has good stability, can also improve the radiating efficiency of the engine, prolongs the service life of the engine and meets the use requirement.)

1. An engine protection device is arranged on a shell of an engine and is characterized by comprising a protection plate, a heat dissipation component and a temperature switch,

the middle part of the protection plate is provided with a heat dissipation hole;

the heat dissipation assembly is provided with a plurality of heat dissipation assemblies, the heat dissipation assemblies are sequentially arranged on the protection plate at intervals, and the projection of the heat dissipation assemblies on the protection plate falls outside the heat dissipation holes of the protection plate;

the temperature switch with radiator unit corresponds the setting, every temperature switch includes barrel and piston, the piston activity sets up in the barrel in order to form first cavity in the barrel and can fill up the second cavity of hydrogen, be provided with on the piston and be located first switch body in the first cavity, the inner wall of first cavity be provided with can with the second switch body of first switch body contact or separation, first switch body and the second switch body all with correspond with temperature switch radiator unit electricity is connected.

2. The engine protection device of claim 1, wherein each heat dissipation assembly comprises a heat dissipation frame, a motor, a fan blade and a power supply, the heat dissipation frame is fixedly disposed on the protection plate, the motor, the fan blade and the power supply are all fixedly disposed inside the heat dissipation frame, the fan blade is connected to an output shaft of the motor, a barrel of the temperature switch is fixedly connected to the corresponding heat dissipation frame, each first switch body and each second switch are respectively electrically connected to the corresponding motor and the power supply, and the motor is electrically connected to the power supply.

3. The engine protection device of claim 2, further comprising support members, one support member being provided for each of the heat dissipation members, each support member being provided between the protection plate and the corresponding heat dissipation member, each support member including a support frame, a first spring, a support block, and a support rod, wherein,

the supporting frame is fixedly connected to the protecting plate, supporting holes are formed in the supporting frame, the first spring, the supporting block and the supporting rod are sequentially arranged, the first spring and the supporting block are arranged in the supporting frame, two ends of the first spring are respectively connected with the supporting frame and the supporting block, one end of the supporting rod is arranged in the supporting frame and is connected with the supporting block, and the other end of the supporting rod movably penetrates through the supporting holes of the supporting frame and is connected with the heat dissipation frame of the heat dissipation assembly.

4. The engine protection device of claim 3, wherein a groove is formed in the middle of the protection plate, the heat dissipation holes are formed in the groove of the protection plate, each support frame is connected to the bottom of the groove of the protection plate, and the projection of the support frame on the groove of the protection plate falls outside the heat dissipation holes in the groove of the protection plate.

5. The engine protection device of claim 4, wherein the protective plate is protruded away from the heat sink assembly at the groove of the protective plate to form the groove of the protective plate.

6. An engine protection device according to claim 4, wherein the end of the protection plate is provided with a bolt for connecting the housing.

7. The engine protection device of claim 6, further comprising a limiting assembly, wherein the limiting assembly comprises a limiting plate, a second spring, a limiting rod and a limiting member,

the limiting plate is arranged in the groove of the protecting plate, the second spring and the limiting part are arranged on one side, far away from the engine, of the protecting plate, a limiting hole is formed in the side wall of the groove of the protecting plate, one end of the limiting rod is arranged in the groove of the protecting plate and connected with the limiting plate, the other end of the limiting rod sequentially and movably penetrates through the limiting hole of the protecting plate and the second spring is connected to the middle of the limiting part, and the end part of the limiting part is connected with the nut of the bolt in a clamping mode.

8. The engine protection device of claim 7, wherein the end of the position-limiting member has a claw, the nut of the bolt is provided with a slot, and the claw of the position-limiting member is clamped into the slot of the bolt to clamp the position-limiting member and the bolt.

9. An engine comprising an engine protection device as claimed in any one of claims 1 to 8.

10. An engine according to claim 9, wherein the cylinder is disposed parallel to the housing.

Technical Field

The invention belongs to the technical field of engines, and particularly relates to an engine protection device and an engine.

Background

An engine, also known as an engine, is a machine that can convert other forms of energy into another form of energy, usually chemical energy into mechanical energy. The shell of the engine mainly plays a role in protecting the engine and preventing mechanical damage; the sealing of the engine shell directly influences the working environment of the engine timing gear train and the service life of the timing system parts, and the structure of the integrated shell directly influences the sealing performance of the product and the noise reduction performance of the whole machine; the sealing form adopted in the engine timing wheel train is the split type sealing of an upper shell and a lower shell.

At present, an engine shell is single in structure and low in heat dissipation efficiency, so that the temperature of the shell is high, the service life of an engine is influenced, and the use requirement cannot be met.

Disclosure of Invention

In order to solve the technical problems, the invention provides an engine protection device and an engine, and the device can improve the heat dissipation efficiency of the engine and meet the use requirement.

The technical scheme of the invention is as follows:

in one aspect, the invention provides an engine protection device, which is arranged on a shell of an engine and is suitable for heat dissipation of the engine, the protection device comprises a protection plate, a heat dissipation component and a temperature switch,

the middle part of the protection plate is provided with a heat dissipation hole;

the heat dissipation assembly is provided with a plurality of heat dissipation assemblies, the heat dissipation assemblies are sequentially arranged on the protection plate at intervals, and the projection of the heat dissipation assemblies on the protection plate falls outside the heat dissipation holes of the protection plate;

the temperature switch with radiator unit corresponds the setting, every temperature switch includes barrel and piston, the piston activity sets up in the barrel in order to form first cavity in the barrel and can fill up the second cavity of hydrogen, be provided with on the piston and be located first switch body in the first cavity, the inner wall of first cavity be provided with can with the second switch body of first switch body contact or separation, first switch body and the second switch body all with correspond with temperature switch radiator unit electricity is connected.

Further, every radiator unit includes heat dissipation frame, motor, flabellum and power, the louvre is fixed to be set up on the protection shield, the motor the flabellum with the power all is fixed to be set up inside the heat dissipation frame, be connected with on the output shaft of motor the flabellum, temperature switch's barrel fixed connection is in the radiator unit who corresponds on the heat dissipation frame, every the first switch body with the second switch respectively with correspond the motor with the power electricity is connected, the motor with the power electricity is connected.

Furthermore, the device also comprises support components, each heat dissipation component is correspondingly provided with one support component, each support component is arranged between the protection plate and the corresponding heat dissipation component, each support component comprises a support frame, a first spring, a support block and a support rod, wherein,

the supporting frame is fixedly connected to the protecting plate, supporting holes are formed in the supporting frame, the first spring, the supporting block and the supporting rod are sequentially arranged, the first spring and the supporting block are arranged in the supporting frame, two ends of the first spring are respectively connected with the supporting frame and the supporting block, one end of the supporting rod is arranged in the supporting frame and is connected with the supporting block, and the other end of the supporting rod movably penetrates through the supporting holes of the supporting frame and is connected with the heat dissipation frame of the heat dissipation assembly.

Furthermore, a groove is formed in the middle of the protection plate, the heat dissipation holes are formed in the groove of the protection plate, each support frame is connected to the bottom of the groove of the protection plate, and the projection of each support frame on the groove of the protection plate is located outside the heat dissipation holes of the groove of the protection plate.

Further, the protection plate protrudes in a direction away from the heat dissipation assembly at the groove of the protection plate to form the groove of the protection plate.

Further, the end of the protection plate is provided with a bolt for connecting the housing.

Further, the device also comprises a limiting component, the limiting component comprises a limiting plate, a second spring, a limiting rod and a limiting piece,

the limiting plate is arranged in the groove of the protecting plate, the second spring and the limiting part are arranged on one side, far away from the engine, of the protecting plate, a limiting hole is formed in the side wall of the groove of the protecting plate, one end of the limiting rod is arranged in the groove of the protecting plate and connected with the limiting plate, the other end of the limiting rod sequentially and movably penetrates through the limiting hole of the protecting plate and the second spring is connected to the middle of the limiting part, and the end part of the limiting part is connected with the nut of the bolt in a clamping mode.

Further, the tip of locating part has the jack catch, be provided with the draw-in groove on the nut of bolt, the jack catch card of locating part is gone into in the draw-in groove of bolt, in order to realize the locating part with the joint of bolt.

In another aspect, the invention further provides an engine, which comprises the engine protection device.

Further, the cylinder is arranged in parallel with the housing.

The beneficial effects of the invention at least comprise:

the engine protection device provided by the invention is arranged on a shell of an engine and comprises a protection plate, a heat dissipation assembly and a temperature switch. The heat dissipation assembly is arranged on the protection plate and connected with a temperature switch, when the temperature of heat generated in the working process of the engine rises, hydrogen in a second cavity of the temperature switch expands, and the molecular weight of the hydrogen is smaller than that of air, so that the pressure in the second cavity is larger than that in the first cavity, the piston is pushed to move towards the direction of the first cavity, the first switch body is driven to move towards the second switch body until the first switch body and the second switch body are contacted, and the first switch body and the second switch body are both electrically connected with the heat dissipation assembly, so that a closed loop is formed in the heat dissipation assembly, the heat dissipation assembly works to dissipate the heat of the engine, and the heat is dissipated through a heat dissipation hole of the protection plate; when the temperature of the engine is gradually reduced, the hydrogen shrinks, the pressure is reduced, the piston moves towards the direction of the second chamber, the first switch body is driven to be far away from the second switch body, the circuit is disconnected, and the heat dissipation assembly stops working. The heat dissipation device can dissipate heat of the engine, improves the heat dissipation efficiency of the engine, and prolongs the service life of the engine.

Drawings

FIG. 1 is a schematic structural diagram of an engine protection device according to the present embodiment;

FIG. 2 is a schematic diagram of the temperature switch of FIG. 1;

FIG. 3 is a schematic structural view of the support assembly and the heat dissipation assembly of FIG. 1;

FIG. 4 is a schematic structural view of the stop assembly of FIG. 1;

FIG. 5 is a schematic structural diagram of a limiting member;

fig. 6 is a schematic structural diagram of a protection device according to this embodiment.

Description of reference numerals: 1-protective plate, 11-groove; 2-heat dissipation component, 21-heat dissipation frame, 22-motor, 23-fan blade; 3-temperature switch, 31-cylinder, 32-piston, 33-first chamber, 34-second chamber, 35-first switch body, 36-second switch body; 4-support component, 41-support frame, 42-first spring, 43-support block, 44-support rod; 5-limiting component, 51-limiting plate, 52-second spring, 53-limiting rod, 54-limiting piece; 6-bolt.

Detailed Description

In order to make the present application more clearly understood by those skilled in the art to which the present application pertains, the following detailed description of the present application is made with reference to the accompanying drawings by way of specific embodiments.

Fig. 1 is a schematic structure of an engine protection device provided in this embodiment, and in conjunction with fig. 1, the present invention provides an engine protection device, which is installed on a housing of an engine, and includes a protection board 1, a heat dissipation assembly 2, and a temperature switch 3.

Wherein, the middle part of the protection plate 1 is provided with a heat dissipation hole; a plurality of heat dissipation assemblies 2 are arranged, the plurality of heat dissipation assemblies 2 are sequentially arranged on the protection plate 1 at intervals, and the projection of the heat dissipation assemblies 2 on the protection plate 1 falls outside the heat dissipation holes of the protection plate 1; fig. 2 is a schematic structural diagram of the heat dissipation assembly in fig. 1, and referring to fig. 2, the heat dissipation assembly 2 and the temperature switches 3 are arranged correspondingly, each temperature switch 3 includes a cylinder 31 and a piston 32, the piston 32 is movably arranged in the cylinder 31 to form a first chamber 33 and a second chamber 34 which can be filled with hydrogen gas in the cylinder, a first switch body 35 located in the first chamber 33 is arranged on the piston 32, a second switch body 36 which can be in contact with or separated from the second switch body 36 is arranged on the inner wall of the first chamber 33, and both the first switch body 35 and the second switch body 36 are electrically connected with the heat dissipation assembly 2 corresponding to the temperature switch 3.

The heat dissipation component 2 is arranged on the protection plate 1, the temperature switch 3 is connected to the heat dissipation component 2, when the temperature of heat generated in the working process of an engine rises, hydrogen in the second cavity 34 of the temperature switch 3 expands, and the molecular weight of the hydrogen is smaller than that of air, so that the pressure in the second cavity 34 is larger than that in the first cavity 33, the piston 32 is pushed to move towards the first cavity 33, the first switch body 35 is driven to move towards the second switch body 36 until the hydrogen contacts the second cavity, and the first switch body 35 and the second switch body 36 are both electrically connected with the heat dissipation component, so that a closed loop is formed in the heat dissipation component 2, the heat dissipation component 2 works to dissipate heat of the engine, and the heat is dissipated through heat dissipation holes in the groove 11 of the protection plate 1; when the temperature of the engine gradually decreases, the hydrogen gas contracts, the pressure decreases, the piston 32 moves toward the second chamber 34, and the first switch body 35 is driven to be away from the second switch body 36, so that the circuit is disconnected, and the heat dissipation assembly 2 stops working. The heat dissipation device can dissipate heat of the engine, improves the heat dissipation efficiency of the engine, and prolongs the service life of the engine.

Fig. 3 is a schematic structural diagram of the heat dissipation assembly and the support assembly in fig. 1, and with reference to fig. 3, specifically, each heat dissipation assembly 2 includes a heat dissipation frame 21, a motor 22, a fan 23, and a power supply (not shown in fig. 3), the heat dissipation frame 21 is fixedly disposed on the protection plate 1, the motor 22, the fan 23, and the power supply are all fixedly disposed inside the heat dissipation frame 21 of the corresponding heat dissipation assembly 2, the fan 23 is connected to an output shaft of the motor 22, the cylinder 31 of the temperature switch 3 is fixedly connected to the heat dissipation frame 21, each first switch body 35 and each second switch body 36 are respectively electrically connected to the corresponding motor 22 and the corresponding power supply, and the motor 22 is electrically connected to the power supply. After the first switch body 35 and the second switch body 36 contact, the motor 22 and the power supply form a closed loop, and the motor 22 rotates to drive the fan blades 23 to rotate for heat dissipation. The number of the fan blades 23 may be plural, one end of the plural fan blades 23 is radially connected to the circumferential surface of the output shaft of the motor 22, and the number of the fan blades 23 may be 5, 6, or other numbers, which is not limited herein. The heat dissipation frame 21 may be a rectangular frame, and has air ports at two ends, or may have an ellipsoidal structure with air ports, which may be specifically adjusted and selected as required, and is not limited herein.

Referring to fig. 3, in the present embodiment, the protection device may further include support members 4, one support member 4 is disposed for each heat dissipation member 2, each support member 4 is disposed between the protection plate 1 and the corresponding heat dissipation member 2, and each support member 4 includes a support frame 41, a first spring 42, a support block 43, and a support rod 44.

The supporting frame 41 is fixedly connected to the protection plate 1, a supporting hole is formed in the supporting frame 41, the first spring 42, the supporting block 43 and the supporting rod 44 are sequentially arranged, the first spring 42 and the supporting block 43 are arranged in the supporting frame 41, two ends of the first spring 42 are respectively connected with the supporting frame 41 and the supporting block 43, one end of the supporting rod 44 is arranged in the supporting frame 41 and is connected with the supporting block 43, and the other end of the supporting rod 44 movably penetrates through the supporting hole of the supporting frame 41 to be connected with the heat dissipation frame 21 of the heat dissipation assembly 2. When the protection board 1 is installed on an engine, the first spring 42 is compressed to generate restoring force to the supporting block 43, the supporting block 43 pushes the supporting rod 44, and the supporting rod 44 pushes the supporting block 21 of the heat dissipation assembly 2 to press the engine, so that the heat dissipation assembly 2 is close to the engine as much as possible to improve the heat dissipation effect; meanwhile, the temperature switch 3 can be in contact with the shell of the engine, the temperature change of the engine can be more accurately sensed, when the temperature of the engine rises, hydrogen in the temperature switch 3 expands, so that the first switch body 35 and the second switch body 36 are in quick contact to form a closed loop, the heat dissipation assembly 2 works, and the response time is shortened. The support rods 44 may be provided in two or three, and the specific number is not limited herein.

Specifically, in the present embodiment, a groove 11 is formed in the middle of the protection plate 1, heat dissipation holes are formed in the groove 11 of the protection plate 1, each support frame 41 is connected to the bottom of the groove 11 of the protection plate 1, and the projection of the support frame 41 on the groove 11 of the protection plate 1 falls outside the heat dissipation holes of the groove 11 of the protection plate 1 to provide an installation space for the support component 4, the heat dissipation component 2 and the temperature switch 3.

Specifically, in the present embodiment, in conjunction with fig. 1 and fig. 6, the protection plate 1 protrudes in the direction away from the discrete thermal assemblies 2 at the groove 1 portion of the protection plate 1 to form the groove 11 of the protection plate 1. The protective plate 1 can be obtained by integral stamping, and this structure of the protective plate is light in weight, but the protective plate 1 can also be a plane surface at the portion of the recess 1 of the protective plate 1, but this structure does not meet the requirement of weight reduction.

The cylinder 31 of the temperature switch 3 can be parallel to the groove bottom of the groove 11 of the protection plate 1, so that the sensing area of the hydrogen in the cylinder 31 and the engine can be increased, and the temperature change of the engine can be sensed quickly.

Preferably, the output shaft of the motor 22 is disposed toward the opening of the groove 11 of the protection plate 1, so that the heat radiation efficiency of the engine can be improved.

Referring to fig. 1, in the present embodiment, the end of the protection board 1 is provided with a bolt 6 for connecting with the housing, but other connection methods may be adopted, and are not limited herein.

Fig. 4 is a schematic structural diagram of the limiting assembly in fig. 1, and with reference to fig. 4, in this embodiment, when the protection plate 1 is connected to the housing of the engine through a bolt, the apparatus may further include a limiting assembly 5, where the limiting assembly 5 includes a limiting plate 51, a second spring 52, a limiting rod 53, and a limiting member 54.

Wherein, limiting plate 51 sets up in the recess 11 of protection shield 1, second spring 52 and locating part 53 set up in the one side of protection shield 1 far away from the engine, spacing hole has been seted up on the recess 11 lateral wall of protection shield 1, gag lever post 53 one end sets up in the recess 11 of protection shield 1, and be connected with limiting plate 51, spacing hole and the second spring 52 that the other end of gag lever post 54 activity passed protection shield 1 in proper order are connected at locating part 54 middle part, the tip and the nut joint of bolt 6 of locating part 54, prevent that bolt 6 is not hard up, guarantee the casing of protection shield 1 and engine and stabilize the connection. The end of the limiting member 54 away from the bolt 6 may be provided with a pressing portion, and the limiting member 54 is engaged with the nut of the bolt 6 by pressing the pressing portion.

The number of the limiting rods 53 and the number of the second springs 52 may be two, and each limiting rod 53 is provided with one second spring 52, and certainly, the number of the limiting rods may also be three or four, which is not limited herein.

Specifically, referring to fig. 4, in the present embodiment, the end of the position-limiting member 54 may have a claw, a nut of the bolt 6 is provided with a slot, and the claw of the position-limiting member 54 is inserted into the slot of the bolt 6, so as to clamp the position-limiting member and the bolt.

Fig. 5 is a schematic structural diagram of the limiting member, and with reference to fig. 5, of course, in this embodiment, the limiting member 54 may also be an annular member, a protrusion 54a is disposed on an inner side of the annular member 54, and a recess matched with the protrusion 54a of the limiting member 54 is disposed on an outer periphery of the nut of the bolt 6, so as to achieve the purpose of preventing the bolt 6 from loosening.

In another aspect, the invention further provides an engine, and the engine comprises the engine protection device.

Specifically, referring to fig. 1 and 2, in the present embodiment, the output shaft of the motor 22 is perpendicular to the housing, and the cylinder 31 is parallel to the housing, so that the corresponding time of temperature switching can be reduced, and the heat dissipation efficiency of the engine can be improved.

The protection device provided by the invention is additionally provided with the radiating component on the basis of the original engine, so that the radiating efficiency of the engine is improved; the support assembly is arranged and is in a compressed state, so that the mounting stability of the protection plate is improved, the inner wall of the support block supports the support block through the first spring, the support rod extends out to support the heat dissipation assembly, the heat dissipation assembly is in close contact with a shell of an engine, and the heat dissipation efficiency of the engine is improved; the surface of the heat dissipation frame is provided with a temperature switch, the temperature switch is in contact with the shell of the engine, and when the engine reaches the limit temperature, the temperature switch is switched on, so that the motor starts to work, and the heat dissipation efficiency of the engine is further improved; the surface of protective housing sets up spacing subassembly, be convenient for carry out the joint to the bolt, it is not hard up to prevent that the bolt from taking place, further improve bolt installation stability, the second spring supports the locating part, make the locating part stretch out, press down the locating part, drive the jack catch motion, increase the elastic potential energy of second spring, the jack catch carries out the joint with bolt surface draw-in groove, improve installation bolt installation stability, prevent to become flexible, the protection shield has been reached, the bolt, the heat dissipation frame, support assembly and radiator unit constitute a whole, this whole both has good stability, can also improve the radiating efficiency of engine, the life of engine has been prolonged, satisfy user demand's purpose.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.