WO2018192153A1

WO2018192153A1 - Engine

Info

Publication number: WO2018192153A1
Application number: PCT/CN2017/099720
Authority: WO
Inventors: 许银; 骆勇; 车碧波; 苟长河; 程萍; 江恒; 杨秀梅; 张金强
Original assignee: 隆鑫通用动力股份有限公司
Priority date: 2017-04-21
Filing date: 2017-08-30
Publication date: 2018-10-25
Also published as: CN211238308U

Abstract

Provided is an engine (010), comprising an engine body (100) provided with a lithium battery (200) used by the engine (010). A center axis (200a) of the lithium battery (200) is parallel to a cylinder shaft (100a) of the engine body (100). The center axis (200a) of the lithium battery (200) is configured to be parallel to the cylinder shaft (100a) of the engine body (100), such that the relatively large stress generated by the vibration of the engine (010) along a main vibration axis is parallel to positive and negative electrode layers of the lithium ion battery, facilitating reduction in deformation caused by the vibration stress of the positive and negative electrode layers, so as to ensure strong adhesion of the positive and negative electrode layers to active materials, and reducing the adverse effects of vibration on the lithium battery (200), thereby ensuring normal use of the lithium battery (200) over a long period of time, and further ensuring smooth starting of the engine (010).

Description

An engine

Cross-reference to related applications

This application claims the priority of the Chinese Patent Application entitled "Engine" on April 21, 2017, submitted to the Chinese Patent Office as 201710267316.0; the application number required to be submitted to the China Patent Office on April 21, 2017 is 201720429588.1 The priority of the Chinese patent application entitled "Installation Structure for Mounting a Lithium Battery to the Engine"; the application number required to be submitted to the Chinese Patent Office on April 21, 2017 is 201720438930.4, entitled "For Engines" Priority of the Chinese Patent Application for Lithium Battery Assembly; the entire contents of which are incorporated herein by reference.

Technical field

The present invention relates to the field of power plant technology, and in particular to an engine.

Background technique

The engine is a machine that converts the chemical energy of fuel into a mechanical energy output. Most of the starting power used for starting the engine is a lead-acid battery, and the lead-acid battery is large in volume, heavy in weight, low in energy density, easy to self-discharge and is not conducive to There are many drawbacks in storage, etc.; therefore, there is a lithium battery as the starting power source for the engine, which reduces the size while reducing the weight and the battery under the same capacity parameters as compared with the conventional lead-acid battery. The service life. In the prior art, since the lithium battery is fixedly mounted on the engine body for a long period of time, the engine generates severe vibration during use, which may adversely affect the lithium battery, such as a decrease in battery capacity, a decrease in output voltage, or a shortened life. Seriously affect the normal use of lithium batteries.

Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to overcome the deficiencies of the prior art and to provide an engine capable of reducing adverse effects on a lithium battery due to vibration and ensuring long-term normal use of the lithium battery.

Embodiments of the present invention are implemented by the following technical solutions:

An engine includes an engine body on which a lithium battery for the engine is mounted, the central axis of the lithium battery being parallel to a cylinder axis of the engine body.

Further, the lithium battery is mounted on the engine body by plugging, and the insertion direction of the lithium battery is perpendicular to the central axis.

Further, the lithium battery is provided with an electrode slot, and the electrode slot is disposed in a direction perpendicular to the central axis extending in a direction perpendicular to the central axis, the electrode slot is provided with a first contact electrode, and the engine body is provided with an insertion electrode a second contact electrode in the socket and in electrical contact with the first contact electrode, the contact surface between the first contact electrode and the second contact electrode being perpendicular to the central axis.

Further, the first contact electrode or/and the second contact electrode are provided with an elastic force disposed parallel to the central axis along the central axis direction, and the first contact electrode and the second contact electrode are in close contact under the action of the elastic force.

Further, the first contact electrode is an elastic clip composed of two curved elastic pieces, the two curved elastic pieces are arranged close to each other in a concave manner, and the second contact electrode is an electrode insert; the lithium battery is mounted on the engine body. When the electrode tab is inserted between the two curved elastic pieces, the electrical contact between the first contact electrode and the second contact electrode is electrically connected.

Further, the lithium battery is arranged side by side in a direction parallel to the central axis, and a plurality of guiding slots parallel to the electrode slot are arranged in parallel. The corresponding guiding groove of the engine body is provided with a plurality of guiding inserts, and the lithium battery is installed through the guiding slot and the guiding insert. The plug-in fits the mounting guide.

Further, the lithium battery is mounted on the side of the engine body to avoid the fuel tank filler port of the engine and the muffler exhaust port of the engine.

Further, further comprising a mounting structure assembly for fixing the lithium battery to the engine body; the mounting structure assembly includes a lithium battery case for accommodating the lithium battery and a mounting bracket for fixing the lithium battery case to the engine body; The battery case is inserted into the mounting frame; the insertion direction of the lithium battery case is perpendicular to the cylinder axis of the engine body.

Further, a sliding limit structure is disposed on the outer side of the lithium battery case, and the sliding limit structure is configured to cooperate with the mounting frame to slide the lithium battery case to the mounting frame in a single degree of freedom in a straight line direction; the lithium battery case and the mounting frame are in the straight line The direction achieves the stop limit.

Further, the sliding limit structure comprises two parallel and opposite strip-shaped limiting chutes; the mounting frame is provided with a fixing plate that is engaged with the lithium battery case, and two sides of the fixing plate are embedded with two-shaped limit sliding The slots are slidably matched in a single degree of freedom.

Further, the fixing plate is provided with a bayonet; the back of the lithium battery case is integrally formed to form a buckle engaged with the bayonet, the buckle is located in the buckle mounting opening formed on the back of the lithium battery case; the lower edge of the bayonet is formed to support the lithium Flange of the battery compartment.

Further, the root of the flange and the fixed plate are curved transitions.

Further, the buckle is a tongue-shaped buckle provided with a triangular block on the side, and the triangular block is juxtaposed in the lateral direction with two rectangular grooves for forming the triangular block into an E-shaped structure which is gradually thinned from the top to the bottom.

Further, the top corner of the fixing plate is provided with a guiding inclined surface for guiding the fixing plate into the strip-shaped limiting chute.

Further, the mounting frame further includes an L-shaped lifting plate fixedly connected to the fixing plate at the upper end, a first connecting lug fixed to the fixing plate, and a second connecting lug fixed to the lower bottom plate of the L-shaped lifting plate; The connecting lug and the second connecting lug are each provided with a connecting hole; the mounting bracket is fixed to the engine body by the first connecting lug and the second connecting lug.

Further, the bending portion of the L-shaped lifting plate is provided with a strip-shaped reinforcing rib; the first connecting lug and the fixing plate are integrally formed on the side of the fixing plate and parallel with the fixing plate; the second connecting lug is integrally formed in the L The side of the lower bottom plate of the lifting plate is perpendicular to the lower bottom plate of the L-shaped lifting plate.

Further, the bottom of the accommodating cavity of the lithium battery case is provided with a positioning convex surface, and the positioning convex surface cooperates with the positioning concave surface disposed on the surface of the lithium battery to realize the positioning of the lithium battery.

Further, the positioning concave surface includes a first inclined surface for guiding and positioning the lithium battery in the front-rear direction and a second inclined surface for guiding and positioning the lithium battery in the left-right direction; the positioning convex surface includes the first inclined surface and the second inclined surface respectively A bevel that is used to guide and position the lithium battery.

Further, the positioning concave surface is a continuous curved surface, and the first inclined surface and the second inclined surface are different portions of the continuous curved surface; the positioning concave surface is formed by the bottom corner of the lithium battery being inwardly recessed.

Further, the positioning concave surfaces are two and respectively located at adjacent bottom corners of the lithium battery; the positioning convex surface is formed by inwardly protruding from two adjacent bottom corners of the lithium battery case.

Further, the upper end side of the lithium battery protrudes to form a locking portion, and the locking portion is configured to cooperate with the buckle provided on the lithium battery case after the lithium battery is inserted into the lithium battery case, thereby realizing the locking and fixing of the lithium battery.

Further, an upper end surface of the locking portion is provided with a latching surface, and an outer surface of the locking portion forms a guiding slope for guiding the buckle of the lithium battery case to the engaging surface.

Further, the upper end side of the lithium battery is movably provided with a tab, the upper end of the lithium battery is provided with a button linked with the tab; the lithium battery box is provided with a tab hole; when the lithium battery is inserted into the lithium battery box, the tab is embedded with the card Inside the tongue; when the button is pressed, the tab is released from the tab hole.

Further, the lithium battery is provided with sliding grooves on opposite sides thereof, and the lithium battery case is provided with sliding bars extending to the inside of the lithium battery case on opposite sides; when the lithium battery is inserted into the lithium battery case, the sliding groove and the sliding bar are slidably engaged.

Further, the sliding groove and the sliding bar are both perpendicular to the cylinder axis.

Further, the back of the lithium battery case is provided with a plug for inserting a power supply socket on the engine body.

The technical solution of the present invention has at least the following advantages and beneficial effects:

The engine provided by the embodiment of the invention provides a large stress along the main vibration axis direction and a positive and negative of the lithium ion battery by setting the central axis of the lithium ion battery parallel to the cylinder axis of the engine body. The electrode layers are parallel, which is beneficial to reduce the deformation of the positive and negative electrode layers caused by the vibration stress, ensure the strong adhesion of the positive and negative electrode layers to the active material, reduce the vibration and cause adverse effects on the lithium battery, and ensure that the lithium battery can be long-term. Normal use to further ensure the engine starts smoothly.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings for the embodiments need to be briefly introduced. It is understood that the following drawings are merely illustrative of certain embodiments of the invention and are not intended to Other drawings can be obtained from those skilled in the art without departing from the drawings.

1 is a schematic view showing a split structure of an engine according to Embodiment 1 of the present invention;

2 is a schematic view showing the overall structure of an engine according to Embodiment 1 of the present invention;

3 is a schematic structural view of a lithium battery 200 according to Embodiment 1 of the present invention;

Figure 4 is a large view of the IV of Figure 3;

5 is a schematic structural view of a lithium battery case in a perspective view according to Embodiment 1 of the present invention;

6 is a schematic structural view of a lithium battery according to another embodiment of the present invention;

7 is a schematic structural view of a lithium battery case according to another embodiment of the present invention;

8 is a schematic structural view of a lithium battery and a lithium battery case according to Embodiment 1 of the present invention;

9 is a schematic structural view of a mounting bracket and a lithium battery case according to Embodiment 1 of the present invention;

10 is a schematic structural view of a mounting bracket according to Embodiment 1 of the present invention;

11 is a schematic structural view of a lithium battery according to Embodiment 2 of the present invention;

12 is a schematic structural view of a lithium battery case in a viewing angle according to Embodiment 2 of the present invention;

13 is a schematic structural view of a lithium battery case according to another embodiment of the present invention;

FIG. 14 is a schematic structural view of a lithium battery and a lithium battery case according to Embodiment 2 of the present invention.

In the figure: 010-engine; 100-engine body; 100a-cylinder shaft; 110-fuel tank filler port; 120-muffler exhaust vent; 130-engine upper cover; 131-air guide; 132-replacement space; Lithium battery; 200a-center shaft; 210-electrode slot; 220-first contact electrode; 221a-arc shrapnel; 221b-curved shrapnel; 230-guide groove; 240-positioning concave surface; 241-first slope; - second bevel; 250 - locking portion; 251 - engaging surface; 252 - guiding bevel; 260 - sliding groove; 271 - tab; 272 - button; 300 - lithium battery case; 300a - receiving cavity; 310 - Two contact electrodes; 311-plug; 320-guide insert; 330-positioning convex; 340-snap; 341-slope; 350-strip limit chute; 360-snap; 361-rectangular slot; 370-card Buckle mounting port; 380-sliding bar; 390-tab hole; 400-mounting frame; 410-fixing plate; 411-baylet; 412-guide bevel; 420-flange; 430-L-shaped lifting plate; First connecting lug; 450-second connecting lug; 460-stripe reinforcing rib.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings. It is apparent that the described embodiments are part of the embodiments of the invention, and not all of the embodiments.

Therefore, the following detailed description of the embodiments of the invention is not intended to All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be noted that the features and technical solutions in the embodiments and the embodiments of the present invention may be combined with each other without conflict.

It should be noted that similar reference numerals and letters indicate similar items in the following figures, and therefore, once an item is defined in a drawing, it is not necessary to further define and explain it in the subsequent drawings.

In the description of the present invention, it should be noted that the terms "first", "second", etc. are used only to distinguish descriptions, and not Can be understood as indicating or implying relative importance.

Example 1:

1 and FIG. 2, FIG. 1 is a schematic structural diagram of an engine 010 according to an embodiment of the present invention, and FIG. 2 is a schematic overall structural diagram of an engine 010 according to the embodiment. In the present embodiment, the engine 010 includes an engine body 100 and a lithium battery 200. The lithium battery 200 is mounted on the engine body 100.

A central axis 200a of the lithium battery 200 is shown in FIGS. 1 and 2, and the central axis 200a is parallel to the positive and negative electrode layers of the lithium battery 200. A cylinder shaft 100a of the engine body 100 is also shown in FIGS. 1 and 2. As can be seen from FIGS. 1 and 2, the central axis 200a of the lithium battery 200 is parallel to the cylinder axis 100a of the engine body 100.

Although the vibration generated by the engine 010 during operation is irregular vibration, the main vibration axis thereof is the cylinder shaft 100a, and the main shaft 200a of the lithium battery 200 is disposed in parallel with the cylinder shaft 100a, so that the main vibration due to the vibration is generated. The large stress in the axial direction is parallel to the positive and negative electrode layers of the lithium battery 200, which is advantageous for reducing the deformation of the positive and negative electrode layers caused by the vibration stress, and ensuring strong adhesion of the positive and negative electrode layers to the active material and reducing The vibration adversely affects the lithium battery 200, ensuring that the lithium battery 200 can be used normally for a long period of time, further ensuring a smooth start of the engine.

1 and 2, in the present embodiment, the engine body 100 is provided with a tank filler port 110 on its top surface and a muffler exhaust port 120 on its side. The lithium battery 200 is mounted on the side of the engine body 100 and avoids the tank filler port 110 and the muffler exhaust port 120. Specifically, the engine body 100 includes an upper engine cover 130 disposed at the top. The top surface of the upper engine cover 130 is provided with an air guiding opening 131. The side surface of the upper engine cover 130 is recessed inward to form a seating space 132 for mounting the lithium battery 200. The cross-section of the upper engine cover 130 is approximately rectangular, with the space 132 being located on one of the sides of the upper engine cover 130. The lithium battery 200 is mounted on the engine upper cover 130 at a position where the opposite sides of the fuel tank filler port 110 and the muffler exhaust port 120 are off centerline. In this way, the lithium battery 200 can be prevented from affecting the air inlet of the air guiding port 131, and the temperature of the lithium battery 200 is prevented from being too high. At the same time, the lithium battery 200 is set in a reasonable position and is convenient to use, and the overall structure of the engine 010 is more coordinated.

In the present embodiment, the lithium battery 200 is attached to the engine body 100 by means of plugging. The insertion direction of the lithium battery 200 is perpendicular to the central axis 200a. By setting the insertion direction of the lithium battery 200 to be perpendicular to the central axis 200a, the plug structure is formed to have a fixed limit in the direction along the cylinder axis 100a, thereby avoiding the vibration in the direction of the main vibration axis, causing the lithium battery 200 to fall off after installation, so that the main The vibration in the direction of the vibration axis is perpendicular to the moving direction of the plug structure, and the stability of the lithium battery 200 after installation is ensured.

Please refer to FIG. 3. FIG. 3 is a schematic structural view of the lithium battery 200 in a viewing angle according to the embodiment. As can be seen from FIG. 3, the surface of the lithium battery 200 is provided with an electrode slot 210 which extends in a direction perpendicular to the central axis 200a. Please refer to FIG. 4, which is a large diagram of the IV of FIG. A first contact electrode 220 is disposed within the electrode socket 210. In this embodiment, the first contact electrodes 220 are two, and are respectively disposed in the two electrode slots 210. The two first contact electrodes 220 are a positive electrode contact electrode and a negative electrode contact electrode, respectively. Engine body 100 A second contact electrode 310 (shown in FIG. 5) for inserting into the electrode slot 210 and in electrical contact with the first contact electrode 220 is disposed thereon. The second contact electrode 310 is electrically connected to a starter motor (not shown) of the engine 010 or the like. The second contact electrode 310 has a one-to-one correspondence with the first contact electrode 220. The contact surface between the first contact electrode 220 and the second contact electrode 310 is perpendicular to the central axis 200a. In this way, the contact surface between the first contact electrode 220 and the second contact electrode 310 is perpendicular to the main vibration axis, and the contact surface between the first contact electrode 220 and the second contact electrode 310 has a large vibration intensity along the vertical direction thereof. It is advantageous to remove the oxide layer and the rust layer on the contact surface by vibration, to ensure the effective electrical connection between the first contact electrode 220 and the second contact electrode 310, to reduce the contact resistance, and to ensure the stability of the starting voltage of the engine body 100.

Further, in the present embodiment, the first contact electrode 220 or/and the second contact electrode 310 are provided with an elastic force in the direction of the central axis 200a. The first contact electrode 220 and the second contact electrode 310 are in close contact under the action of the elastic force. The elastic force may be provided by an external elastic member acting on the first contact electrode 220 or/and the second contact electrode 310, or by the first contact electrode 220 or/and the second contact electrode 310 itself, which is advantageous for increasing the first contact electrode 220 and The vibration amplitude of the second contact electrode 310 improves the ability of removing the contact surface to attach the crop, and ensures stable contact between the first contact electrode 220 and the second contact electrode 310 to ensure smooth electrical connection.

Specifically, in the embodiment, the first contact electrode 220 itself has an elastic force. Referring again to FIG. 4, the first contact electrode 220 is a spring clip composed of two curved elastic pieces. The two curved elastic pieces are arranged in a concave manner opposite to each other, and the two curved elastic pieces are an arc-shaped elastic piece 221a and a curved elastic piece 221b, respectively. The second contact electrode 310 is a strip-shaped electrode insert. When the lithium battery 200 is mounted on the engine body 100, the second contact electrode 310 is inserted between the curved elastic piece 221a and the curved elastic piece 221b to realize the connection of the first contact electrode 220 and the first contact electrode 220. The electrical connection of the two contact electrodes 310. One end of the curved elastic piece is fixed to the inner side wall of the electrode socket 210, and the other end is a free movable end. Of course, the opposite inner side walls of the electrode slot 210 can also be arranged to avoid the escape hole (not shown) of the corresponding curved elastic piece, and the free movable end portion of the curved elastic piece is inserted into the escape hole when the curved elastic piece is pressed. When the free moving end of the curved elastic piece can move in the escape hole, the curved elastic piece vibrates. The above structure is convenient to install, the electrical connection is stable, and the electric spark can be avoided.

Further, in the present embodiment, the lithium battery 200 is provided with a plurality of guide grooves 230 parallel to the electrode slots 210 in the direction of the central axis 200a. The engine body 100 is provided with a plurality of guide tabs 320 (shown in FIG. 5) corresponding to the guide slots 230. When the lithium battery 200 is installed, the mounting guide is realized by inserting and engaging the guide slot 230 with the guide slot 320. The guiding slot 230 is disposed between the two electrode slots 210. The arrangement of the guiding tab 320 and the guiding slot 230 facilitates the installation of the lithium battery 200, and reduces the force of the second contact electrode 310 when the lithium battery 200 is mounted. The second contact electrode 310 is prevented from being jammed when the lithium battery 200 is mounted. Of course, the cooperation of the guiding tab 320 and the guiding slot 230 enables the lithium battery 200 to be restrained relative to the guiding tab 320 in the direction of the central axis 200a.

In the present embodiment, the engine 010 further includes a mounting knot for fixing the lithium battery 200 to the engine body 100. Structure. The mounting structure includes a lithium battery case 300. Please refer to FIG. 5. FIG. 5 is a schematic structural view of the lithium battery case 300 under a viewing angle. The lithium battery case 300 is used to accommodate the lithium battery 200 to stably fix the lithium battery 200 and protect the surface of the lithium battery 200 from being damaged, thereby improving the stability of the installation of the lithium battery 200. The lithium battery case 300 is provided with a housing cavity 300a having an open top, and the lithium battery 200 is inserted into the person housing chamber 300a from top to bottom, thereby fixing the lithium battery 200 in the lithium battery case 300. The second contact electrode 310 and the guiding tab 320 are disposed in the accommodating cavity 300a. When the lithium battery 200 is inserted into the accommodating cavity 300a, the second contact electrode 310 and the first contact electrode 220 cooperate with each other to guide the tab 320 and the guiding slot. 230 cooperate with each other.

FIG. 6 is a schematic structural view of the lithium battery 200 in another embodiment in the present embodiment. Referring to FIG. 5 and FIG. 6 , in the embodiment, the bottom of the accommodating cavity 300 a of the lithium battery case 300 is provided with a positioning convex surface 330 , and the positioning convex surface 330 cooperates with the positioning concave surface 240 disposed on the surface of the lithium battery 200 to realize the lithium battery 200 . Positioning. The positioning concave surface 240 may be a curved concave surface provided on the bottom surface of the lithium battery 200 or a slope provided on the lower end of the side surface of the lithium battery 200, and the like, which can realize the purpose of positioning the lithium battery 200 in the lithium battery case 300. Correspondingly, the positioning convex surface 330 is adapted to the shape of the positioning concave surface 240. For example, when the positioning concave surface 240 is a sloped surface, the positioning convex surface 330 is also a sloped surface. When the lithium battery 200 is inserted into the lithium battery case 300 from top to bottom, the positioning concave surface 240 cooperates with the positioning convex surface 330 while bonding the inside of the lithium battery case 300. The limiting action of the wall enables the lithium battery 200 to be limited in the horizontal direction. In this way, shaking of the lithium battery 200 after installation and fixing is avoided. The positioning concave surface 240 formed by the depression of the lithium battery 200 has a simple structure, is convenient to manufacture, has stable positioning, and has high control precision.

In the present embodiment, the positioning concave surface 240 includes a first inclined surface 241 for guiding and positioning the lithium battery 200 in the front-rear direction and a second inclined surface 242 for guiding and positioning the lithium battery 200 in the left-right direction. The positioning convex surface 330 is provided with a slope matching the first slope 241 and the second slope 242. The first slope 241 and the second slope 242 may be planes or curved surfaces that are independent of each other. In the present embodiment, the positioning concave surface 240 is a continuous curved surface, and the first inclined surface 241 and the second inclined surface 242 are different portions of the continuous curved surface. The positioning concave surface 240 is formed by recessing the bottom corner of the lithium battery 200. Since the positioning concave surface 240 is a continuous curved surface, and the positioning concave surface 240 is formed by the bottom corner of the lithium battery 200, the lithium battery 200 can be ensured that the lithium battery 200 is well positioned, and the recessed volume of the lithium battery 200 is small, and the lithium battery is ensured. 200 has a large capacity.

In this embodiment, the positioning concave surfaces 240 are two and are respectively located at two bottom corners adjacent to the lower end of the lithium battery 200. The two positioning convex surfaces 330 corresponding to the positioning concave surface 240 are formed by inwardly protruding from the corresponding corners of the lithium battery case 300. The two positioning concave surfaces 240 and the two positioning convex surfaces 330 cooperate with each other to limit the lithium battery 200 in the left and right direction, thereby further improving the stability of positioning of the lithium battery 200, and being more convenient to install and disassemble.

FIG. 7 is a schematic structural view of the lithium battery case 300 in another embodiment in the present embodiment. FIG. 8 is a schematic structural view of the lithium battery 200 and the lithium battery case 300 in the embodiment. Referring to FIG. 6 , FIG. 7 and FIG. 8 , the upper end side of the lithium battery 200 protrudes perpendicularly to the side direction to form a locking portion 250 , and the upper end of the lithium battery case 300 is provided with a buckle 340 . The locking portion 250 is configured to lock and fix the lithium battery 200 when the lithium battery 200 is inserted into the lithium battery case 300 and engaged with the buckle 340. The lithium battery 200 is fixed to the lithium battery case 300 by snapping, and has a simple structure and high installation efficiency. In the case where the top of the accommodating chamber 300a is open, the lithium battery 200 can be effectively fixed. In this way, the open portion of the top of the receiving chamber 300a facilitates heat dissipation of the lithium battery 200.

Further, in the embodiment, the upper end surface of the locking portion 250 is provided with a latching surface 251, and the latch 340 is provided with a slope 341 that cooperates with the guiding slope 252. The outer side surface of the locking portion 250 is formed with a guide slope 252 for engaging the slope 341 and guiding the buckle 340 of the lithium battery case 300 to the engaging surface 251. Of course, the locking portion 250 is located on the same side as the two positioning concave surfaces 240, so that a stable gap is formed between the lithium battery 200 and the inner wall of the lithium battery case 300. The lithium battery 200 is subjected to a downward locking force, and the fixing of the lithium battery 200 is achieved in conjunction with the engagement pressure of the positioning concave surface 240 and the positioning convex surface 330 and the pressure between the lithium battery 200 and the side wall of the lithium battery case 300.

In the present embodiment, the mounting structure for fixing the lithium battery 200 to the engine body 100 further includes a mounting bracket 400. FIG. 9 is a schematic structural view of the mounting bracket 400 and the lithium battery case 300 in the embodiment. FIG. 10 is a schematic structural view of the mounting bracket 400 in the embodiment. Referring to FIGS. 9 and 10 together, the lithium battery case 300 is fixed to the engine body 100 through the mounting bracket 400. The lithium battery case 300 is inserted and fixed to the mounting frame 400, and the insertion direction of the lithium battery case 300 is perpendicular to the cylinder axis 100a. By inserting the insertion direction of the lithium battery case 300 perpendicular to the cylinder shaft 100a, the plug structure is formed to form a fixed limit in the direction along the cylinder axis 100a (ie, the main vibration axis), thereby avoiding vibration in the direction of the main vibration axis, causing the lithium battery case 300. After the installation, the vibration is removed, so that the vibration in the direction of the main vibration axis is perpendicular to the extending direction of the plug structure, and the stability of the lithium battery case 300 after installation is ensured. Of course, the lithium battery case 300 and the mounting frame 400 may be provided with an existing one. The card is fixed and will not be described here.

A sliding limit structure is disposed outside the lithium battery case 300. The sliding limit structure is configured to cooperate with the mounting bracket 400 to slidably fit the lithium battery case 300 to the mounting frame 400 in a single degree of freedom in a straight line direction. The lithium battery case 300 and the mounting frame 400 achieve a locking limit in the linear direction. The sliding limit structure may be a dovetail groove disposed on the surface of the lithium battery case 300 or a limit slider having a dovetail shape, and the mounting frame 400 is provided with a limit slider or a dovetail groove having a dovetail shape. The lithium battery case 300 and the mounting frame 400 are combined by a limit slider and a dovetail groove to achieve a single degree of freedom sliding fit in a straight line direction. Of course, the single-degree-of-freedom sliding fit can be realized by the matching of the other shape of the limiting block and the limiting slot. The sliding limiting structure helps to reduce the relative freedom of movement of the lithium battery case 300, greatly improves the stability of the fixing of the lithium battery case 300, and the structure. Simple and easy to install.

In this embodiment, referring to FIG. 7 , FIG. 9 and FIG. 10 , the sliding limiting structure comprises two parallel and oppositely disposed strip-shaped limiting slots 350 . The mounting bracket 400 is provided with a fixing plate 410 that is engaged with the lithium battery case 300. The two sides of the fixing plate 410 are adapted to be embedded in the two strip-shaped limiting slots 350 and slidably matched in a single degree of freedom. The width of the fixing plate 410 is equal to or slightly larger than the width between the two strip-shaped limiting slots 350, so that the strip-shaped limiting slot 350 forms a clamping force on the fixing plate 410. Thus, the fixing stability can be ensured, and the lithium battery case 300 and the fixing plate 410 are formed. Orientation, which is conducive to installation.

In this embodiment, the fixing plate 410 is provided with a bayonet 411, and the lithium battery case 300 is provided with a buckle 360. The buckle 360 is for mating with the edge of the bayonet 411. The buckle 360 is located in a snap mounting opening 370 that is formed in the back of the lithium battery case 300. The lower edge of the bayonet 411 forms a flange 420 for supporting the lithium battery case 300. The bayonet 411 can be a rectangular opening. The buckle 360 is locked to the upper edge of the bayonet 411. The flange 420 for supporting the lithium battery case 300 is formed by the lower edge of the bayonet 411. The structure is simple and convenient to manufacture. The buckle 360 and the flange 420 respectively fix the lithium battery case 300 in the up and down direction, and the fixing strength is high and the fixing is stable. The flange 420 can form an upward elastic force, which is beneficial to cooperate with the buckle 360 on the lithium battery case 300 to realize long-term stable fixing of the lithium battery case 300 along the longitudinal direction of the strip limit chute 350, and at the same time, facilitate vibration buffering. The snap mounting port 370 facilitates heat dissipation of the lithium battery case 300.

In this embodiment, the root portion of the flange 420 and the fixing plate 410 have an arc-shaped transition; it is beneficial to improve the elastic deformation performance of the flange 420, and ensure that the lithium battery case 300 is firmly fixed.

In this embodiment, the buckle 360 is a tongue-shaped buckle provided with a triangular block on the side, and two sides of the triangular block are arranged side by side in the horizontal direction for forming the triangular block to form an E-shaped structure which is gradually thinned from the top to the bottom. The rectangular groove 361 is beneficial to improve the flexibility of the buckle 360, which facilitates bending of the root of the buckle 360 when the force is applied, and ensures the long service life of the buckle 360.

In this embodiment, the top corner of the fixing plate 410 is provided with a guiding slope 412 for guiding the fixing plate 410 into the strip-shaped limiting slot 350. The docking speed of the fixing plate 410 and the strip-shaped limiting slot 350 is improved, and the installation efficiency is improved. The guiding slope 412 has a simple structure and is convenient to process.

In this embodiment, the mounting bracket 400 further includes an L-shaped lifting plate 430 fixedly connected to the fixing plate 410 at the upper end, a first connecting lug 440 fixed to the fixing plate 410, and a lower bottom plate fixed to the L-shaped lifting plate 430. The second connecting lug 450. The first connecting lug 440 and the second connecting lug 450 are each provided with a connecting hole. The mounting bracket 400 is fixed to the engine body 100 by a first connecting lug 440 and a second connecting lug 450. Specifically, the mounting bracket 400 is fixed to the engine body 100 by bolts penetrating through the connecting holes on the first connecting lug 440 and the second connecting lug 450.

In this embodiment, a strip-shaped reinforcing rib 460 is disposed at a bend on the L-shaped lifting plate 430. The first connecting lug 440 and the fixing plate 410 are integrally formed on the side of the fixing plate 410 and parallel to the fixing plate 410; the second connecting lug 450 is integrally formed on the side of the lower bottom plate of the L-shaped lifting plate 430 and is associated with the L The lower bottom plate of the lift plate 430 is vertical.

Example 2:

This embodiment also provides an engine which is basically the same as the engine 010 described in the first embodiment. The difference is that the lithium battery is different from the lithium battery case.

FIG. 11 is a schematic structural view of a lithium battery 200 in the present embodiment. Referring to FIG. 11 , in the embodiment, the lithium battery 200 is provided with sliding grooves 260 on both sides thereof, and the sliding grooves 260 on both sides of the lithium battery 200 are parallel. A tab 271 is movably disposed on the upper end side of the lithium battery 200, and the tab 271 is expandable and contractible with respect to the upper end side of the lithium battery 200. When the tab 271 is extended, the tab 271 protrudes from the upper end side of the lithium battery 200. When the tab 271 is retracted, the tab 271 is retracted to the lithium Inside the battery 200. A button 272 is also provided at the upper end of the lithium battery 200. The button 272 is interlocked with the tab 271. When the button 272 is pressed, the tab 271 is retracted to the inside of the lithium battery 200. When the button 272 is not pressed, the button 272 is reset, and the tab 271 is extended to protrude from the upper end side of the lithium battery 200.

FIG. 12 is a schematic structural view of the lithium battery case 300 in a viewing angle according to the embodiment. FIG. 13 is a schematic structural view of the lithium battery case 300 in another embodiment in the present embodiment. Referring to FIG. 12 and FIG. 13, in the present embodiment, the lithium battery case 300 is provided with slide bars 380 extending toward the inside of the lithium battery case 300 on opposite sides. The lithium battery case 300 is parallel to the slide bars 380 on both sides. A tab hole 390 is opened in the lithium battery case 300.

FIG. 14 is a schematic structural view of the lithium battery 200 and the lithium battery case 300 in the embodiment. Referring to FIG. 14, at the time of assembly, the lithium battery 200 is inserted into the lithium battery case 300 from the top of the lithium battery case 300. During the insertion process, the sliding bar 380 and the sliding groove 260 are slidably engaged to guide the lithium battery 200, thereby enabling the lithium battery 200 to be inserted into the lithium battery case 300 more smoothly. At the same time, the sliding bar 380 cooperates with the sliding groove 260 to realize a single-degree-of-freedom sliding fit, which can reduce the relative freedom of movement of the lithium battery 200 and improve the stability of the fixing of the lithium battery 200. Further, the sliding bar 380 and the sliding groove 260 are both perpendicular to the cylinder shaft 100a, so that the vibration in the direction of the main vibration axis is perpendicular to the sliding engagement direction of the sliding bar 380 and the sliding groove 260, so that the vibration in the direction of the main vibration axis can be prevented from causing lithium. The battery 200 is detached after installation, and the stability of the lithium battery 200 after installation can be further ensured.

In the process in which the lithium battery 200 is inserted into the lithium battery case 300, the button 272 can be pressed to retract the tab 271 to the inside of the lithium battery 200. In this way, the lithium battery 200 can be inserted into the lithium battery case 300 more easily. When the lithium battery 200 is fully inserted into the lithium battery case 300, the button 272 is released, and the tab 271 is extended and embedded in the tab hole 390. The cooperation with the tab hole 390 can limit the lithium battery 200 along the sliding engagement direction of the sliding bar 380 and the sliding groove 260 to prevent the lithium battery 200 from falling out of the lithium battery case 300. When the lithium battery 200 needs to be taken out, the button 272 is pressed, and the tab 271 is released from the tab hole 390, so that the lithium battery 200 can be taken out of the lithium battery case 300.

In addition, a plug 311 electrically connected to the second contact electrode 310 is disposed on the back surface of the lithium battery case 300. The lithium battery case 300 can be conveniently inserted into the power supply socket on the engine body 100 through the plug 311, thereby disposing the lithium battery. The electrical energy in 200 is conducted to the engine body 100.

It is apparent that the above-described embodiments of the present invention are merely illustrative of the present invention and are not intended to limit the embodiments of the present invention. Other variations or modifications of the various forms may be made by those skilled in the art in light of the above description. There is no need and no way to exhaust all of the implementations. Any modifications, equivalent substitutions and improvements made within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Industrial applicability

The engine provided by the embodiment of the present invention provides a large stress in the direction of the main vibration axis and a positive state of the lithium ion battery by setting the central axis of the lithium ion battery unit parallel to the cylinder axis of the engine body. The negative electrode layers are parallel, which is beneficial to reduce the deformation of the positive and negative electrode layers caused by the vibration stress, ensure the strong adhesion of the positive and negative electrode layers to the active material, reduce the vibration and cause adverse effects on the lithium battery, and ensure that the lithium battery can Long-term normal use further ensures that the engine starts smoothly.

Claims

An engine characterized by comprising an engine body mounted with a lithium battery for the engine, a central axis of the lithium battery being parallel to a cylinder axis of the engine body.
The engine according to claim 1, wherein said lithium battery is attached to an engine body by means of plugging, and an insertion direction of said lithium battery is perpendicular to said central axis.
The engine according to claim 2, wherein said lithium battery is provided with an electrode slot, said electrode slot being disposed in a direction perpendicular to a central axis extending in a direction perpendicular to said central axis, said a first contact electrode is disposed in the electrode slot, and the engine body is provided with a second contact electrode for inserting into the electrode socket and electrically contacting the first contact electrode, the first contact electrode and the The contact surface between the second contact electrodes is perpendicular to the central axis.
The engine according to claim 3, wherein said first contact electrode or/and said second contact electrode are provided with an elastic force provided in a direction parallel to said central axis in a central axis direction, said first contact The electrode and the second contact electrode are in close contact under the action of the elastic force.
The engine according to claim 4, wherein the first contact electrode is an elastic clip composed of two curved elastic pieces, and the two curved elastic pieces are arranged in a concave manner opposite to each other. The second contact electrode is an electrode insert; when the lithium battery is mounted on the engine body, the electrode insert is inserted between two arc-shaped elastic pieces to realize the first contact electrode and the first The electrical contact of the two contact electrodes is electrically connected.
The engine according to any one of claims 3 to 5, wherein the lithium battery is juxtaposed with a plurality of guide grooves parallel to the electrode slots in a direction parallel to the central axis, the engine The guiding body is provided with a plurality of guiding inserts corresponding to the guiding groove, and the lithium battery is installed and guided by the insertion and engagement of the guiding groove and the guiding insert.
An engine according to any one of claims 1 to 6, wherein said lithium battery is mounted to a side of said engine body to avoid a fuel tank filler port of said engine and a muffler row of said engine tuyere.
The engine of any of claims 1-6, further comprising a mounting structure assembly for securing the lithium battery to the engine body; the mounting structure assembly including for housing the lithium battery Lithium battery case and a mounting bracket for fixing the lithium battery case to the engine body; the lithium battery case is inserted into the mounting frame; the insertion direction of the lithium battery case is opposite to the engine body The cylinder axis is vertical.
The engine according to claim 8, wherein a sliding limit structure is disposed outside the lithium battery case, and the sliding limit structure is configured to cooperate with the mounting frame to make the lithium battery case freely in a straight line direction. The sliding assembly is fitted to the mounting bracket; the lithium battery case and the mounting bracket achieve a locking limit in the linear direction.
The engine according to claim 9, wherein said sliding limit structure comprises two flats And a strip-shaped limiting chute arranged oppositely; the mounting bracket is provided with a fixing plate that is engaged with the lithium battery case, and the two sides of the fixing plate are embedded with two strip-shaped limiting chutes Slide the match in a single degree of freedom.
The engine according to claim 10, wherein the fixing plate is provided with a bayonet; the back surface of the lithium battery case is integrally formed to form a buckle engaged with the bayonet, and the buckle is located at a lithium battery The buckle mounting opening on the back of the case; the lower edge of the bayonet forming a flange for supporting the lithium battery case.
The engine of claim 11 wherein said root of said flange and said fixed plate are arcuately transitioned.
The engine according to claim 11, wherein said buckle is a tongue-shaped buckle provided with a triangular block on the side, said triangular block being juxtaposed in the lateral direction for forming said triangular block from above Two rectangular grooves of an E-shaped structure that is gradually thinner in thickness.
The engine according to claim 10, characterized in that the top corner of the fixing plate is provided with a guiding bevel for guiding the fixing plate into the strip-shaped limiting chute.
The engine according to claim 10, wherein said mounting bracket further comprises an L-shaped lifting plate fixedly connected to said fixing plate at an upper end, a first connecting lug fixed to said fixing plate, and being fixed at said a second connecting lug of the lower bottom plate of the L-shaped lifting plate; the first connecting lug and the second connecting lug are each provided with a connecting hole; the mounting bracket passes the first connecting lug and The second connecting lug is fixed to the engine body.
The engine according to claim 15, wherein a bent rib is provided at a bend of the L-shaped lifting plate; the first connecting lug and the fixing plate are integrally formed on the fixing plate The side edges are parallel to the fixing plate; the second connecting lugs are integrally formed on the side of the lower bottom plate of the L-shaped lifting plate and perpendicular to the lower bottom plate of the L-shaped lifting plate.
The engine according to any one of claims 8 to 16, wherein a bottom surface of the accommodating chamber of the lithium battery case is provided with a positioning convex surface, and the positioning convex surface is matched with a positioning concave surface provided on a surface of the lithium battery. The lithium battery is positioned.
The engine according to claim 17, wherein said positioning concave surface comprises a first inclined surface for guiding and positioning the lithium battery in the front-rear direction and a second inclined surface for guiding and positioning the lithium battery in the left-right direction; The positioning convex surface includes a sloped surface that cooperates with the first inclined surface and the second inclined surface to realize guiding and positioning of the lithium battery.
The engine according to claim 18, wherein said positioning concave surface is a continuous curved surface, said first inclined surface and said second inclined surface being different portions of said continuous curved surface; said positioning concave surface being said lithium battery The bottom corner is recessed inwardly.
The engine according to claim 19, wherein said positioning concave surfaces are two and respectively located at adjacent bottom corners of the lithium battery; said positioning convex surfaces are convexly inwardly from two adjacent bottom corners of the lithium battery case; form.
The engine according to claim 17, wherein the upper end side of the lithium battery protrudes to form a locking portion, and the locking portion is used after the lithium battery is inserted into the lithium battery case and disposed in the The snap-fit connection of the lithium battery case realizes the locking and fixing of the lithium battery.
The engine according to claim 21, wherein an upper end surface of the locking portion is provided with a latching surface, and an outer side surface of the locking portion is formed to guide the buckle of the lithium battery case to a guiding slope of the engaging surface.
The engine according to any one of claims 8 to 16, characterized in that: the upper end side of the lithium battery is movably provided with a tab, and the upper end of the lithium battery is provided with a button linked with the tab; a lithium battery case is provided with a tab hole; when the lithium battery is inserted into the lithium battery case, the tab is embedded in the tab hole; when the button is pressed, the tab is disengaged The tab hole.
The engine according to any one of claims 8 to 16, characterized in that: the lithium battery is provided with sliding grooves on opposite sides thereof, and the lithium battery case is provided on opposite sides thereof to extend inside the lithium battery case a sliding bar; the sliding groove is slidably engaged with the sliding bar when the lithium battery is inserted into the lithium battery case.
The engine according to claim 24, wherein said sliding groove and said sliding bar are both perpendicular to said cylinder axis.
The engine according to any one of claims 8 to 16, characterized in that the back of the lithium battery case is provided with a plug for inserting a power supply socket on the engine body.