Patent Description:
Most of the existing lithium battery reach trucks are powered by lead-acid batteries, which are mainly divided into two parts from top to bottom. The upper part is mainly equipped with main components such as multi-way valve, controller assembly and cover, and the lower part is lead-acid battery. The lead-acid battery has two functions for the vehicle: first, as a power source to provide electricity; second, because the lead-acid battery is heavy, it serves as the counterweight of the whole vehicle to prevent the vehicle from tipping over. Although the reach truck with lithium battery is gradually emerging, even for the model of lithium battery, the lead-acid battery is only replaced with lithium battery.

As shown in <FIG>, after replacing the battery from a lead-acid battery with a lithium battery <NUM>, due to the small size and light weight of the lithium battery <NUM>, an additional counterweight <NUM> needs to be added to reach the weight of the basic lead-acid battery model. Therefore, the existing reach truck with lithium battery <NUM> is mainly divided into three parts from top to bottom. The upper part remains unchanged at which main components such as multi-way valve, controller assembly, and cover are mainly arranged. The middle part is lithium battery <NUM>, and the lower part is additional counterweight. Of course, the middle part of the lithium battery <NUM> and the lower part of the additional weight may also be integrated as an assembly of lithium battery <NUM> (including the additional weight). In that case, the assembly of lithium battery <NUM> (including the additional weight) is equivalent to or even the same as the original lead-acid battery in terms of external dimensions. Therefore, compared with the existing lead-acid battery reach truck with lithium battery <NUM>, this reach truck with lithium battery <NUM> is the same or similar except for some changes regarding the lithium battery. For the reach truck with lithium battery <NUM> in the conventional technology, although both the lithium batteries <NUM> are with a small size, after adding additional weights, the overall size is equivalent to the overall size of the existing lead-acid battery. Therefore, the advantage with small size of the lithium battery <NUM> is not that obviously. For the whole vehicle, although the power is replaced by a lithium battery <NUM>, the structure and size of the whole vehicle are still the same as those with the conventional lead-acid battery, especially for the size of the battery compartment, which is very high, affecting the vision and space in the cab accordingly.

Therefore, how to adjust the battery compartment layout of the lithium battery reach truck and improve the driver's operating vision is a technical problem that the technicians in this field need to be solved at present.

The patent of <CIT> discloses a battery for an industrial truck, which comprises a battery body with a first base body and a second base body. The second base body is positioned adjacent to the first base body. The first base body and the second base body extend a same length in one dimension and the first base body has a greater height than the second base body. The patent of <CIT> discloses a truck, which comprises two wheel arms each coupled to a load wheel, a thrust mast positioned between the wheel arms, a drive unit comprising a steerable drive wheel, and a counterweight comprised of cast iron and positioned in a front region of the reach truck. The patent of <CIT> discloses a forward forklift, which comprises a forklift body assembly and a portal assembly. A forward-moving type battery unit is arranged below the front part of the vehicle body assembly; a driving system is arranged on one side of the rear left side; a balance wheel assembly is arranged on the other side; a control system is arranged below an operating system; a power system is arranged above the driving system; the battery unit is detachably connected with the portal assembly; the portal frame moves forwards to drive the battery to move out; a balance suspension system is connected between the driving system and the balance wheel assembly to achieve dynamic balance. The patent of <CIT> discloses a mounting structure of a forklift hydraulic oil tank, which comprises an oil tank body, a base, a fastener and a shock pad, the oil tank body and the base are detachably connected together through the fastener, and the shock pad is installed between the oil tank body and the base. A plurality of grooves with cylindrical inner surfaces are formed in the bottom of the oil tank body, the shock pads are installed in the grooves, the fasteners are connected with the shock pads through die vulcanization pressing films, the fasteners comprise bolts and steel plates, the bolts are connected with the steel plates in a welded mode, and external threads of the bolts are connected with internal threads of corresponding screw holes in the base.

An object according to the present application is to provide a reach truck with a special structure for lithium battery, which can effectively save space with a stable structure, a low center of gravity and a wide vision for operators.

In order to achieve the above object, the following technical solutions are provided according to the present application.

A reach truck with a special structure for lithium battery, including a frame and a lithium battery and a controller assembly mounted on the frame; the frame includes a bottom plate, side plates and a partition plate located on an upper side of the bottom plate, the side plates are located on the left and right sides of the bottom plate and the partition plate, a battery compartment for receiving the lithium battery is formed between the partition plate, the bottom plate and the side plates; a concave portion is arranged on the partition plate. The controller assembly is placed at the position of the concave portion of the partition plate. The shape of the lithium battery corresponds to the shape of the battery compartment. The reach truck with a special structure for lithium battery further comprises a multi-way valve operating assembly and a multi-way valve mounting bracket, the multi-way valve mounting bracket is fixedly mounted on the partition plate, and the multi-way valve mounting bracket is suspended above the concave portion of the partition plate, the multi-way valve operating assembly is mounted on the multi-way valve mounting bracket, the multi-way valve mounting bracket comprises a multi-way valve mounting panel and an oil pipe fixing panel, a height of the oil pipe fixing panel is lower than a height of the multi-way valve mounting panel, and baffles are arranged at the periphery of the multi-way valve mounting panel and the oil pipe fixing panel, a gap for oil to flow down is provided between the multi-way valve mounting panel and the oil pipe fixing panel. In the above arrangement, the multi-way valve mounting bracket is suspended above the concave portion of the partition plate, so that the multi-way valve operating assembly is arranged on the upper part of the controller assembly, the space of the multi-way valve operating assembly in the conventional technology can be made free, which can effectively improve the space and field of view of the cab.

Preferably, the battery compartment is in a concave shape.

Preferably, a step is provided at a top of the lithium battery, and the low-step surface of the lithium battery corresponds to the position of the concave portion of the partition plate.

Preferably, a wire harness is provided on a side of the low-step surface of the lithium battery away from the high-step surface of the lithium battery; the battery compartment is provided with space for the wire harness into which the wire harness is placed.

Preferably, the frame further includes a rear panel located on a rear side of the bottom plate. The rear panel includes a panel body, a main plate and a steering wheel baffle. The panel body, the main plate and the steering wheel baffle are all solid counterweight plates.

Preferably, the number of the steering wheel baffles is at least two, and the baffles are arc-shaped; all the steering wheel baffles surrounds to form an annular structure.

Preferably, the frame further includes a left leg portion and a right leg portion, and the rear panel is connected between the left leg portion and the right leg portion; the left leg portion is a weighted left leg with a solid structure, and the right leg portion is a weighted right leg with a solid structure.

Preferably, an oil pipe is provided on a side of the oil pipe fixing panel.

The reach truck with a special structure for lithium battery provided by the present application includes a frame and a lithium battery and controller assembly mounted on the frame; the frame includes a bottom plate, side plates and a partition plate located on an upper side of the bottom plate, the side plates are located on the left and right sides of the bottom plate and the partition plate, a battery compartment for receiving the lithium battery is formed between the partition plate, the bottom plate and the side plates; a concave portion is arranged on the partition plate. The controller assembly is placed at the position of the concave portion of the partition plate. The shape of the lithium battery corresponds to the shape of the battery compartment. In the reach truck with a special structure for lithium batteries provided by the present application, by adjusting the structure of the partition plate, the space of the battery compartment is changed, and the structure of the lithium battery is adjusted. The controller assembly is placed in the concave portion, which can effectively save space, reduce the installation height of the controller assembly, and effectively improve the driver's field of vision.

For more clearly illustrating the technical solutions of embodiments of the present application or in the conventional technology, drawings referred to for describing the embodiments or the conventional technology will be briefly described hereinafter. Apparently, the drawings in the following description are only several examples of the present application, and for those skilled in the art, other drawings may be obtained based on these drawings without any creative efforts.

Reference numerals in the figures: <NUM> frame; <NUM> partition plate; <NUM> side plate; <NUM> bottom plate; <NUM> right leg portion; <NUM> left leg portion; <NUM> rear panel; <NUM>-<NUM> panel body; <NUM>-<NUM> main plate; <NUM>-<NUM> steering wheel baffle; <NUM> lithium battery; <NUM> counterweight; <NUM> controller assembly; <NUM> multi-way valve operating assembly; <NUM> electromagnetic multi-way valve; <NUM> manipulating part; <NUM> multi-way valve mounting bracket; <NUM> oil pipe; <NUM> baffle; <NUM> sliding frame.

A core of the present application is to provide a reach truck with a special structure for lithium battery, which may effectively save space, and improve the driver's operating field of vision.

Technical solutions in the embodiments of the present application are clearly and completely described hereinafter in conjunction with the drawings in the embodiments of the present application. Apparently, the embodiments described in the following are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all of other embodiments, made by the person skilled in the art without any creative efforts, fall into the scope of protection of the present application.

Referring to <FIG>, <FIG> is a schematic structural diagram of a specific embodiment of a reach truck with a special structure for lithium battery provided by the present application; <FIG> is a schematic diagram of the structure of the reach truck with a special structure for lithium battery shown in <FIG> in an A-direction; <FIG> is a schematic structural diagram of a lithium battery in a reach truck with a special structure for lithium battery provided by the present application; <FIG> is a front view of the lithium battery in the reach truck with a special structure for lithium battery provided by the present application; <FIG> is a schematic diagram of the position and structure of the lithium battery in the reach truck with a special structure for lithium battery provided by the present application; <FIG> is a schematic diagram of the position of a multi-way valve and an operating assembly in the reach truck with a special structure for lithium battery provided by the present application; <FIG> is a schematic diagram of a multi-way valve mounting bracket and a frame in the reach truck with a special structure for lithium battery provided by the present application; <FIG> is a schematic diagram of the upper part of the frame of the reach truck with a special structure for lithium battery provided by the present application; <FIG> is a schematic diagram of the lower part of the frame of the reach truck with a special structure for lithium battery provided by the present application; <FIG> is a side view of a right leg of the counterweight in the reach truck with a special structure for lithium battery provided by the present application; <FIG> is a A-A cross-sectional view of the right leg of the counterweight in the reach truck with a special structure for lithium battery shown in <FIG> is a front view of the right leg of the counterweight in the reach truck with a special structure for lithium battery provided by the present application; <FIG> is an axonometric view of a rear panel in the reach truck with a special structure for lithium battery provided by the present application; <FIG> is a front view of the rear panel of the reach truck with a special structure for lithium battery provided by the present application; <FIG> is a sectional view of A-A in the rear panel shown in <FIG>; <FIG> is a sectional view of B-B in the rear panel shown in <FIG>; <FIG> is a sectional view of C-C in the rear panel shown in <FIG>; <FIG> is a front view of the frame of the reach truck with a special structure for lithium battery provided by the present application; <FIG> is a schematic diagram of the regional functions of the frame of the reach truck with a special structure for lithium battery provided by the present application; <FIG> is a schematic structural diagram of a multi-way valve mounting bracket in the reach truck with a special structure for lithium battery provided by the present application; <FIG> is a schematic structural diagram of another reach truck with a special structure for lithium battery provided by the present application.

In this embodiment, the reach truck with a special structure for lithium battery includes a frame <NUM>, a lithium battery <NUM> and a controller assembly <NUM>. The lithium battery <NUM> and the controller assembly <NUM> are both mounted on the frame <NUM>;.

Specifically, the frame <NUM> includes a bottom plate <NUM>, a side plate <NUM> and a partition plate <NUM> located on the upper side of the bottom plate <NUM>. The number of side plates <NUM> is at least two, and the side plates <NUM> are located on the left and right sides of the bottom plate <NUM> and the partition plate <NUM>. A battery compartment into which the lithium battery <NUM> is placed is formed between the partition plates <NUM>, the bottom plate <NUM> and the side plate <NUM>.

Further, a concave portion is arranged on the partition plate <NUM>. Specifically, the partition plate <NUM> can be formed by bending, and the partition plate <NUM> is preferably sheet metal; the controller assembly <NUM> is placed at the position of the upper concave portion of the partition plate <NUM>. That is, the position of the controller assembly <NUM> is lowered to the position of the concave portion. The shape of the lithium battery <NUM> corresponds to the shape of the battery compartment. The upper part of the lithium battery <NUM> is also provided with a concave portion corresponding to the position of the concave portion of the partition plate <NUM>. As shown in <FIG>, the height n of one side of the lithium battery <NUM> is less than the height N of the other side of the lithium battery <NUM>. For example, the lithium battery can be in a laterally placed L-shaped structure. The lithium battery <NUM> is configured in a stepped special shape, which can be effectively fitted with the position of the concave portion under the premise of satisfying the capacity of the lithium battery <NUM>.

In the reach truck with a special structure for lithium batteries provided by the present application, by adjusting the structure of the partition plate <NUM>, the space of the battery compartment is changed, and the structure of the lithium battery <NUM> is adjusted. The controller assembly <NUM> is placed in the concave portion, which can effectively save space, reduce the installation height of the controller assembly <NUM>, and effectively improve the driver's field of vision. The truck has better ergonomics, which is mainly in respect of a wider operating field of vision and a more spacious operating space.

On the basis of the above-mentioned embodiments, the battery compartment is in a concave shape, as shown in <FIG> and <FIG>. The above arrangement can meet the installation requirements of the controller assembly <NUM>. The area B shown in <FIG> is used as the arrangement space of the controller assembly <NUM> while the installation space of the lithium battery <NUM> is sufficient. The area C shown in <FIG> is used as the space for receiving the lithium battery <NUM>, and components, mainly the controller assembly <NUM>, are arranged above the lithium battery <NUM>, i.e., above the upper part of the concave portion of the lithium battery <NUM>, so as to be complementary to the stepped shape of the lithium battery <NUM>, forming a complete rectangular parallelepiped as a whole.

Specifically, the battery compartment is designed with a special-shaped structure, such as a concave-shaped structure, so that the component layout can make full use of the space. Of course, the battery compartment may also be in other shapes, any structure that may facilitate the arrangement of the controller assembly and save space can be used.

On the basis of the above-mentioned embodiments, the top of the lithium battery <NUM> is provided with a step. The lower-surface portion of the step of the lithium battery <NUM> corresponds to the position of the concave portion of the partition plate <NUM>, which facilitates the installation of the lithium battery <NUM> and maximizes the utilization rate of the battery compartment.

On the basis of the above-mentioned embodiments, a wire harness is provided on a side of the lower-surface portion of the step of the lithium battery <NUM> away from the high-surface portion of the step of the lithium battery; a wire harness area for placing wire harnesses is provided in the battery compartment, such as area A shown in <FIG>, which is used as the wire harness space for the lithium battery <NUM>.

Further, due to the small size and light weight of the lithium battery <NUM>, an additional counterweight is required to complement for the weight. No additional counterweight is provided in the battery compartment, but the height of the whole battery compartment and operating platform is reduced with the advantage of the small-sized battery, and the counterweight is transferred and distributed on the frame <NUM>.

Specifically, on the basis of the above-mentioned embodiments, the frame <NUM> further includes a rear panel <NUM> located on the rear side of the bottom plate <NUM>. The rear panel <NUM> includes a panel body <NUM>-<NUM>, a main plate <NUM>-<NUM> and a steering wheel baffle <NUM>-<NUM>. The panel body <NUM>-<NUM>, the main plate <NUM>-<NUM> and the steering wheel baffle <NUM>-<NUM> are all solid counterweight plates. As shown in <FIG> to <FIG>, the panel body <NUM>-<NUM> extends in the longitudinal direction; the main plate <NUM>-<NUM> extends in the horizontal direction. The thickness of the panel body <NUM>-<NUM>, the main plate <NUM>-<NUM> and the steering wheel baffle <NUM>-<NUM> can be increased in order to increase the counterweight. The counterweight of the rear panel <NUM> makes an improvement compared with the rear panel <NUM> of the frame structure in the vehicle of conventional technology. In order to achieve the effect of counterweight and make full use of the space, this part of the structure is made into a special shape so as to increase the weight as much as possible without affecting the layout of other components. The structure of the rear panel <NUM> can be made by tailor-welding many small-piece iron plates, or can be cast as a whole.

On the basis of the above-mentioned embodiments, the number of the steering wheel baffles <NUM>-<NUM> is at least two, and the baffles are arc-shaped; all of the steering wheel baffles <NUM>-<NUM> are surrounded to form an annular structure. The rotating shaft of the steering wheel of the truck can pass through the annular structure. The steering wheel baffle <NUM>-<NUM> is set in an arc shape because the panel body <NUM>-<NUM>, the main plate <NUM>-<NUM> and the steering wheel baffle <NUM>-<NUM> are all solid counterweight plates, which are thick and occupy large space. Therefore, the steering wheel baffle plates <NUM>-<NUM> are configured in an arc shape so as to provide more space on both sides of the surface of the rear panel <NUM> in order to mount accessories such as a hydraulic oil tank.

On the basis of the above-mentioned embodiments, the frame <NUM> further includes a left leg portion <NUM> and a right leg portion <NUM>, and the rear panel <NUM> is connected between the left leg portion <NUM> and the right leg portion <NUM>; the left leg portion <NUM> is a weighted left leg with a solid structure, and the right leg portion <NUM> is a weighted right leg with a solid structure, thereby effectively increasing the bottom weight of the frame <NUM> and improving the stability of the frame <NUM> without occupying too much space.

On the basis of the above-mentioned embodiments, the reach truck with a special structure for lithium battery further includes a multi-way valve operating assembly <NUM> and a multi-way valve mounting bracket <NUM>, the multi-way valve mounting bracket <NUM> is fixedly mounted on the partition plate <NUM>, and the multi-way valve mounting bracket <NUM> is suspended above the concave portion of the partition plate <NUM>. The multi-way valve operating assembly <NUM> is mounted on the multi-way valve mounting bracket <NUM>. The multi-way valve mounting bracket <NUM> is suspended above the concave portion of the partition plate <NUM>, so that the multi-way valve operating assembly <NUM> is arranged on the upper part of the controller assembly <NUM>. In that case, the space of the multi-way valve operating assembly <NUM> in the conventional technology can be made free, which can effectively improve the space and field of view of the cab.

Specifically, by adjusting the structure of the battery compartment and configuring the multi-way valve mounting bracket <NUM>, both the height m of the operating platform and the height h of the battery compartment of the electric truck are greatly reduced compared with the conventional technology. More importantly, a visible area F is obtained, which is the position of the driver's knee, and it is also the position of the driver's line of sight at the lower right front, and thus this visible area F expands the driver's operating space and visual field.

Further, the multi-way valve operating assembly <NUM> is arranged above the controller assembly <NUM>. The multi-way valve operating assembly <NUM> is separated from the controller assembly <NUM> by the multi-way valve mounting bracket <NUM> to realize electro-hydraulic separation, as shown in <FIG>. The multi-way valve operating assembly <NUM> is fixedly mounted on the multi-way valve mounting bracket <NUM>, and the multi-way valve mounting bracket <NUM> is fixedly mounted on the frame <NUM>, as shown in <FIG>.

On the basis of the above-mentioned embodiments, the multi-way valve mounting bracket <NUM> includes a multi-way valve mounting panel and an oil pipe fixing panel. The height of the oil pipe fixing panel is lower than the height of the multi-way valve mounting panel. In addition, baffles <NUM> are provided on the periphery of the multi-way valve mounting panel and the oil pipe fixing panel, and a gap for the oil to flow down is provided between the multi-way valve mounting panel and the oil pipe fixing panel.

On the basis of the above-mentioned embodiments, an oil pipe <NUM> is provided on a side of the oil pipe fixing panel.

Specifically, the shape of the multi-way valve mounting bracket <NUM> is shown in <FIG>. The multi-way valve mounting bracket <NUM> is in a stepped shape, and a multi-way valve mounting panel is arranged at the high-step position. The oil pipe fixing panel is located at the low-step position. Baffles <NUM> are arranged around the high-step surface and low-step surface to prevent the oil from flowing out. There are multiple through holes in the high-step position, which are suitable for the installation of multi-way valves and other components. The hole through which the bolt passes is mounted with a gasket to prevent oil leakage from the through hole. In addition, an oil pipe <NUM> is provided on the low-step surface of the multi-way valve mounting bracket <NUM>, and an extra pipe can be connected to the outside of the oil pipe <NUM> to guide the leaked oil to other locations. In this way, even if the multi-way valve leaks, the oil is not able to flow to the lower controller assembly <NUM>, which realizes "electro-hydraulic separation". In addition, the multi-way valve operating assembly <NUM> and the controller assembly <NUM> are arranged up and down, and the structure is compact, which provides the aforementioned visual area F for the cab, and improves the space and field of view of the cab.

The electric truck provided by this embodiment integrates the required counterweight into the frame <NUM>, which are mainly distributed on the rear panel <NUM>, the left leg portion <NUM> and the right leg portion <NUM>, so that the center of gravity of the whole vehicle is lower and the stability of the whole vehicle is better. The counterweight is integrated into the frame <NUM>, and thus the lithium battery <NUM> will no longer require additional counterweights. Therefore, the advantage of the small size of the lithium battery <NUM> can be used to reduce the height of the battery compartment, thereby reducing the height of the operating platform, which may improve the comfort of operation and reduce the center of gravity of the driver's operation. Due to the innovative shape and structure of the lithium battery <NUM>, which adopts a stepped shape, the low-step part can be used to arrange components such as the controller assembly, making full use of the space. On this basis, the multi-way valve operating assembly <NUM> is stacked and arranged above the controller assembly <NUM> through the multi-way valve mounting bracket <NUM>. In that case, under the premise of realizing "electro-hydraulic separation", the space is fully utilized. The advantages are as follow: it frees a large space in front of the driver's right side, which not only improves the driver's operating space, especially the leg room, but also improves the driver's operating field of vision and the overall driving sense of openness.

It should be noted that the above introduction is based on the model of the mechanical valve, that is, the model with the manipulating part <NUM> in a manual operating lever. Of course, the structure of the frame <NUM> provided in this embodiment may also be applied to other electric truck models, as shown in <FIG>. For a vehicle model using an electro-proportional valve, the multi-way valve operating assembly <NUM> includes a finger switch operating component and an electromagnetic multi-way valve <NUM>. The finger switch manipulating part is located on the seat, and is connected with the electromagnetic multi-way valve <NUM> by electrical signals. The operation sequence is as follows: the finger switch manipulating part <NUM>→ the controller assembly <NUM>→ the electromagnetic multi-way valve <NUM> acts, for the above vehicle models, the structure of the frame <NUM> provided in this embodiment is also applicable. Specifically, the structure of the frame <NUM> remains unchanged, and the position of the controller assembly <NUM> remains unchanged. The electromagnetic multi-way valve <NUM> is arranged on the sliding frame <NUM>, and the sliding frame <NUM> is configured as a sub-frame, which can be moved forward and backward; the finger switch manipulating part <NUM> is above the controller assembly <NUM>, which constitutes a complete set of mechanisms, the mechanism is connected and mounted with the seat, and floats with the up and down of the seat, which has good ergonomics. With the structure of the frame <NUM> provided above, there is also sufficient space between the controller assembly <NUM> and the finger switch manipulating part <NUM>, so that the finger switch manipulating part <NUM> cannot interfere with the controller assembly <NUM> when floating with the seat. For this type of electric truck, as the finger switch manipulating part <NUM> is connected with the seat and floats with the seat, which greatly improves the driver's operating comfort, and has a wide field of vision and operating space.

Claim 1:
A reach truck with a special structure for lithium battery, comprising a frame (<NUM>) and a lithium battery (<NUM>) and a controller assembly (<NUM>) mounted on the frame (<NUM>); wherein the frame (<NUM>) comprises a bottom plate (<NUM>), side plates (<NUM>) and a partition plate (<NUM>) located on an upper side of the bottom plate (<NUM>), wherein the side plates (<NUM>) are located on the left and right sides of the bottom plate (<NUM>) and the partition plate (<NUM>), wherein a battery compartment for receiving the lithium battery (<NUM>) is formed between the partition plate (<NUM>), the bottom plate (<NUM>) and the side plates (<NUM>); wherein a concave portion is arranged on the partition plate (<NUM>), wherein the controller assembly (<NUM>) is placed at the position of the concave portion of the partition plate (<NUM>), wherein the shape of the lithium battery (<NUM>) corresponds to the shape of the battery compartment,
characterized in that,
the reach truck with a special structure for lithium battery further comprises a multi-way valve operating assembly (<NUM>) and a multi-way valve mounting bracket (<NUM>), wherein the multi-way valve mounting bracket (<NUM>) is fixedly mounted on the partition plate (<NUM>), and the multi-way valve mounting bracket (<NUM>) is suspended above the concave portion of the partition plate (<NUM>), wherein the multi-way valve operating assembly (<NUM>) is mounted on the multi-way valve mounting bracket (<NUM>),
and in that
the multi-way valve mounting bracket (<NUM>) comprises a multi-way valve mounting panel and an oil pipe fixing panel, wherein a height of the oil pipe fixing panel is lower than a height of the multi-way valve mounting panel, and baffles (<NUM>) are arranged at the periphery of the multi-way valve mounting panel and the oil pipe fixing panel, wherein a gap for oil to flow down is provided between the multi-way valve mounting panel and the oil pipe fixing panel.