CN108557703A - A kind of power module of structure for fuel cell forklift - Google Patents

Abstract

The invention discloses a power supply module of a fuel cell forklift, comprising: a frame arranged in the forklift body; a counterweight, the counterweight is arranged on the frame; a fuel cell, the fuel cell is arranged on the frame within the frame. In the present invention, the counterweight used to balance the torque at the rear of the forklift is placed on the frame of the power module, so that the power module of the fuel cell and the original lead-acid battery have equal torque while reducing the size of the forklift in its length direction. The reduced turning radius makes the movement of the forklift more flexible, and avoids the cost increase and risk caused by the modification of other parts of the vehicle body.

Description

A power module of a fuel cell forklift

technical field

The invention relates to the technical field of power supply modules for forklifts, in particular to a power supply module for fuel cell forklifts.

Background technique

In recent years, with the increasingly stringent environmental protection requirements, the field of construction machinery, especially forklifts, has gradually become electrified. Electric forklifts currently mainly include lead-acid battery forklifts, lithium battery forklifts and fuel cell forklifts. A fuel cell is a power generation device that converts hydrogen, a clean fuel, into electrical energy through an electrochemical reaction. Due to its zero pollution, it has become more and more popular in recent years. The specific reaction principle is that oxygen and hydrogen in the air undergo electrochemical reactions to generate current, and then pass through DC - After DC boost, it is supplied to vehicle electrical devices.

In the prior art, as shown in Figure 1, the lead-acid battery/lithium battery in the existing forklift is replaced with a fuel cell. The moment of the lead-acid battery is the distance between the center of gravity of the lead-acid battery and the axis of the front wheel and the weight of the power module itself. Product, because the quality of the fuel cell and the hydrogen bottle that provides hydrogen is generally lower than that of the lead-acid battery, in order to make the battery module of the fuel cell have the same torque as the original lead-acid battery or lithium battery, it is often placed at the rear of the forklift or A counterweight is added to other positions of the vehicle to meet the load balancing requirements of the vehicle, so that after a lead-acid/lithium battery forklift of a certain tonnage is changed to a fuel cell forklift, the cargo of the same tonnage can be lifted smoothly without tilting .

However, adding counterweights to the tail of the forklift will definitely increase the length of the forklift, which will increase the turning radius of the forklift and require more space when the forklift turns. If it needs to operate in a warehouse with a small space, it may be due to The large turning radius makes it difficult to travel. Therefore, how to reduce the turning radius of the fuel cell forklift while maintaining its stability is an urgent problem to be solved. Moreover, adding counterweights to other parts of the forklift involves modification of the vehicle body, etc., which is time-consuming, inefficient, and increases the cost and risk of restructuring.

Contents of the invention

The purpose of the present invention is to provide a power module of a fuel cell forklift, which can make the power module of the fuel cell and the original lead-acid battery have the same torque while reducing the size of the forklift in the length direction, reducing its turning radius and restructuring cost And risks, making the movement of the forklift more flexible.

The technical scheme provided by the invention is as follows:

A power supply module of a fuel cell forklift, comprising: a frame arranged in a forklift body; a counterweight, the counterweight is arranged on the frame; a fuel cell, the fuel cell is arranged in the frame.

In the above structure, compared with the prior art, the present invention moves the counterweight originally placed at the tail of the forklift body to the frame of the power module, and the stability of the forklift is ensured by balancing the torque through the counterweight. This arrangement can reduce the size of the forklift in the length direction, thereby reducing the turning radius of the forklift, making it easier for the forklift to travel in a warehouse with a small space. The forklift has better flexibility and rarely involves changes to the body. The cost and risk of forklift reconstruction are reduced.

Preferably, the power module of the fuel cell forklift further includes: a hydrogen bottle located in the frame, the hydrogen gas inlet of the fuel cell communicates with the hydrogen gas outlet of the hydrogen bottle; the counterweight is a bottom counterweight , the bottom counterweight is arranged at the bottom of the frame.

Preferably, along the width direction of the forklift body, both ends of the frame are respectively provided with a first vent and a second vent, and the first vent and the second vent are configured to dissipate heat from the fuel cell. The heat dissipation channel, the external air flows through the first vent, the fuel cell and the second vent in sequence.

Since the discharge process of the fuel cell is a process of exothermic heat, in order to avoid excessive temperature at the power module of the fuel cell, a first vent and a second vent are respectively provided at both ends of the frame, and the outside air with a lower temperature Enter the heat dissipation channel through the first vent, and then exchange heat with the surface of the fuel cell. The external air takes away part of the heat of the fuel cell, and then is arranged outside the forklift body through the second vent to realize heat dissipation at the fuel cell.

Preferably, the frame includes four pillars, four connecting beams, two secondary beams and two secondary pillars; the pillars are vertically arranged on the bottom counterweight; the secondary beams connect adjacent two In the middle position of the pillar, the axial direction of the secondary beam is parallel to the width direction of the forklift body; the secondary pillar is vertically arranged on the end face of the secondary beam away from the bottom counterweight, and the secondary pillar is parallel to For the pillars, the secondary pillars and the secondary beams are provided in one-to-one correspondence; the four connecting beams are respectively the first connecting beam, the second connecting beam, the third connecting beam and the fourth connecting beam, and the first connecting beam Both ends of the beam and the second connecting beam are respectively connected to one end of the secondary pillar far away from the secondary beam and an end of the adjacent pillar far away from the bottom counterweight, and the third connecting beam and the fourth connecting beam The two ends of the adjacent pillars are respectively connected to one end away from the bottom counterweight, and the axis directions of the third connecting beam and the fourth connecting beam are parallel to the length direction of the forklift body; along the In the length direction of the forklift truck body, the two secondary beams respectively form the first counterweight area and the second counterweight area with the pillars on both sides and the bottom counterweight blocks, and the first counterweight area is provided with a second counterweight area. A counterweight, a second counterweight is provided at the second counterweight area.

In the above structure, by setting the first counterweight and the second counterweight respectively in the first counterweight area and the second counterweight area, compared with only setting the bottom counterweight at the bottom of the frame, the first counterweight and the second counterweight The second counterweight can share part of the moment for the bottom counterweight, thereby reducing the thickness of the bottom counterweight, thereby reducing the space occupied by the power module of the entire fuel cell inside the forklift, and providing more layout for other equipment on the forklift The space is more convenient for the arrangement of other equipment.

Preferably, along the length direction of the forklift truck body, the two secondary pillars and the corresponding connecting beams, secondary beams and pillars form a third counterweight area and a fourth counterweight area, and the third counterweight area A third counterweight is provided at the place, and a fourth counterweight is provided at the fourth counterweight area.

By setting the third counterweight and the fourth counterweight to share the moment, the thicknesses of the bottom counterweight, the first counterweight and the second counterweight are further reduced, thereby reducing the volume of the entire power module.

Preferably, the power module of the fuel cell forklift further includes: a fifth counterweight and a sixth counterweight, the cross-sectional shapes of the fifth counterweight and the sixth counterweight are L-shaped, and the first The opening of the fifth counterweight is opposite to the opening of the sixth counterweight; the two sides of the fifth counterweight are respectively fixed on the bottom counterweight and the first counterweight; the sixth counterweight The two sides of the two sides are respectively fixed on the bottom counterweight and the second counterweight.

Because there is a certain space between the hydrogen bottle and the first counterweight and the second counterweight, the fifth counterweight and the sixth counterweight are arranged in the aforementioned space, which can make full use of the space in the frame and provide the same In the case of torque, try to reduce the size of the entire power module.

Preferably, shock absorbing pads are respectively provided at the four corners of the end surface of the bottom counterweight away from the frame.

When the forklift is moving, if it encounters uneven ground, it will cause bumps, which will cause the vibration generated by the bumps to be transmitted to the power module. The shock pads reduce the vibration of the power module and avoid the hydrogen bottles and fuel cells in the frame. A relative collision results in damage to equipment within the frame.

Preferably, a seventh counterweight is provided on the end face of the bottom counterweight away from the frame, and the seventh counterweight is located between the four shock absorbing pads.

Since the shock-absorbing pads have a certain thickness, the seventh counterweight can be arranged in the space between the four shock-absorbing pads to make full use of the aforementioned space and further reduce the thickness of the bottom counterweight.

Preferably, the hydrogen bottle is set on the bottom counterweight through the hydrogen bottle bracket; the end surface of the bottom counterweight close to the frame is provided with a bracket installation groove, and the end of the hydrogen bottle bracket away from the hydrogen bottle is installed on The bracket is installed in the groove.

Since the hydrogen bottle support fixes the hydrogen bottle support on the bottom counterweight, there is a remaining space between the hydrogen bottle and the bottom counterweight, therefore, a bracket installation groove is set on the bottom counterweight, and the hydrogen bottle bracket is installed on The bracket is installed in the groove so that the bottom counterweight extends toward the hydrogen bottle at the part not blocked by the hydrogen bottle bracket, making full use of the remaining space between the hydrogen bottle and the bottom counterweight to further reduce the thickness of the bottom counterweight.

Preferably, the frame is a solid frame.

Setting the frame as a solid frame increases the quality of the frame itself, thereby reducing the moment that needs to be balanced by counterweights, and reducing the size or quantity of counterweights, thereby reducing the volume of the entire power module.

The power module of a fuel cell forklift provided by the present invention can bring the following beneficial effects:

In the present invention, the counterweight used to balance the torque at the tail of the forklift body is arranged at the bottom of the frame of the power supply module, which reduces the size of the forklift in the length direction and reduces the turning radius of the forklift, so that the forklift can travel in a narrower space , and can avoid the cost increase and risk caused by the modification of other parts of the vehicle body.

Description of drawings

In the following, preferred embodiments will be described in a clear and easy-to-understand manner with reference to the accompanying drawings, and the above-mentioned characteristics, technical features, advantages and implementation methods of the power module of the fuel cell forklift will be further described.

Figure 1 is a schematic diagram of the torque at the main body of the original lead-acid battery forklift;

Fig. 2 is a schematic diagram of the frame and the counterweight in the power module of the fuel cell forklift of the present invention;

Fig. 3 is a schematic structural view of the fuel cell installed on the frame;

Fig. 4 is a structural schematic diagram of the hydrogen bottle after it is installed on the frame;

Fig. 5 is a schematic diagram of the frame and the counterweight in the power module of the fuel cell forklift of the present invention;

Fig. 6 is the front view of Fig. 2;

Fig. 7 is a structural schematic diagram of the frame in Fig. 2;

Fig. 8 is a schematic diagram of the ventilation direction of the forklift.

Explanation of reference numbers:

1-frame, 1a-pillar, 1b-connecting beam, 1c-secondary beam, 1d-secondary pillar, 2-fuel cell, 3a-first vent, 3b-second vent, 4a-bottom counterweight, 4b - first counterweight, 4c - second counterweight, 4d - third counterweight, 4e - fourth counterweight, 4f - fifth counterweight, 4g - sixth counterweight, 4h - bracket Installation slot, 4i-the seventh counterweight, 5-hydrogen bottle, 6-hydrogen bottle bracket, 7-shock-absorbing pad, 8-forklift body, A-ventilation direction.

Detailed ways

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.

In order to make the drawing concise, the parts related to the present invention are only schematically shown in each drawing, and they do not represent the actual structure of the product.

【Example 1】

As shown in Fig. 3 and Fig. 4, Embodiment 1 discloses a power supply module of a fuel cell forklift, which is installed on the forklift body 8 and is used to provide the forklift with electric energy for travel, using a power supply with a fuel cell 2 The module replaces the lead-acid battery originally arranged in the forklift body 8. Since the lead-acid battery is small in size, there is little space left for the power module of the fuel cell 2. The power module of this embodiment includes: The frame 1 in the body 8, the counterweight, the hydrogen bottle 5 and the fuel cell 2 arranged in the frame 1, in this embodiment, the counterweight is the bottom counterweight 4a, and the bottom counterweight 4a is arranged at the bottom of the frame 1 The bottom, that is, the frame 1 and the bottom counterweight 4a form a quadrilateral.

Wherein, the hydrogen bottle 5 has a hydrogen gas outlet for outputting hydrogen, and the fuel cell 2 has a hydrogen gas inlet for receiving hydrogen gas. The outlet and the hydrogen inlet enter the fuel cell 2 for reaction.

Specifically, as shown in FIG. 3 , the hydrogen bottle 5 is installed on the bottom counterweight 4 a, and the fuel cell 2 is arranged above the hydrogen bottle 5 .

In order to meet the balance requirements of the vehicle for lifting goods, it is necessary for the forklift to ensure the stability during travel and to stir up the goods to run smoothly without tilting. Therefore, the power module of the fuel cell 2 needs to have the same torque as the original lead-acid battery , the moment is the product of the distance from the center of gravity of the power module to the center of the front wheel and the power module, and since the weight of the lead-acid battery is greater than that of the fuel cell 2, it is necessary to use the bottom counterweight 4a to increase the power module of the overall fuel cell 2 quality, so that the torque is consistent with that of the original lead-acid battery, thereby ensuring that the forklift can move stably. Specifically, the quality of the bottom counterweight 4a is designed according to actual needs, that is, to ensure that the power module of the entire fuel cell 2 can have the same power as the original The same torque is sufficient for lead-acid batteries.

In the prior art, in order to make up for the shortcoming of the fuel cell 2 being light in weight, counterweights are often installed at the tail of the forklift body 8 to increase the torque of the fuel cell 2, thereby ensuring that the forklift can move stably. It will cause the length of the forklift to become longer and the radius of rotation to become larger, thus causing difficulties for the forklift to travel in a narrow warehouse. The power module of this embodiment increases the quality of the entire power module by setting the bottom counterweight 4a at the bottom of the frame 1 , so that the power module of the entire fuel cell 2 has the same moment as that of the original lead-acid battery, and the length of the forklift will not be increased. Compared with the prior art, the turning radius of the forklift is reduced, and it is more convenient for the forklift to travel in a narrow warehouse.

[Example 2]

As shown in Figure 3, Figure 4 and Figure 8, Embodiment 2 is based on Embodiment 1. Embodiment 2 is along the width direction of the forklift body 8, and the two ends of the frame 1 are respectively provided with a first ventilation opening 3a and a second ventilation opening 3a. The two vents 3b, the first vent 3a and the second vent 3b constitute a cooling channel for the fuel cell 2 to dissipate heat, and external air flows through the first vent 3a, the fuel cell 2 and the second vent 3b in sequence. Specifically, both the first ventilation opening 3 a and the second ventilation opening 3 b face the side of the forklift truck body 8 . The ventilation direction A of the external air is shown in FIG. 8 .

The external air with a relatively low temperature enters the heat dissipation channel through the first vent 3a, and then exchanges heat with the surface of the fuel cell 2. The external air takes away part of the heat of the fuel cell 2, and then passes through the second vent 3b to arrange the forklift body 8 In addition, heat dissipation at the fuel cell 2 is realized.

[Example 3]

As shown in Fig. 7, embodiment 3 is based on embodiments 1-2, the frame 1 of embodiment 3 includes four pillars 1a, four connecting beams 1b, two secondary beams 1c and two secondary pillars 1d, wherein , the pillar 1a is vertically arranged on the bottom counterweight 4a, the secondary beam 1c connects the middle positions of two adjacent pillars 1a, and the axial direction of the secondary beam 1c is parallel to the width direction of the forklift body 8 . The secondary pillar 1d is vertically arranged on the end surface of the secondary beam 1c away from the bottom counterweight 4a, and the secondary pillar 1d is parallel to the pillar 1a, and the secondary pillar 1d is arranged in one-to-one correspondence with the secondary beam 1c, that is, a secondary beam 1c is provided with a Secondary pillar 1d.

The four connecting beams 1b are respectively the first connecting beam, the second connecting beam, the third connecting beam and the fourth connecting beam. One end and the end of the adjacent pillar 1a away from the bottom counterweight 4a, the axis direction of the first connecting beam and the second connecting beam is parallel to the width direction of the forklift body 8, the third connecting beam and the fourth connecting beam Both ends are respectively connected to one end of the adjacent pillar 1 a away from the bottom counterweight 4 a, and the axis directions of the third connecting beam and the fourth connecting beam are parallel to the length direction of the forklift truck body 8 .

As shown in Fig. 2 and Fig. 5, along the length direction of the forklift body 8, two secondary beams 1c respectively form a first counterweight area and a second counterweight area with the pillars 1a on both sides and the bottom counterweight 4a, and the second counterweight area A first counterweight 4b is provided at the first counterweight area, and a second counterweight 4c is provided at the second counterweight area. The frame 1 is provided with connecting lugs, and the first counterweight 4b and the second counterweight 4c are fixedly connected to the connecting lugs of the frame 1 through threaded connections such as bolts.

In this embodiment, not only the bottom counterweight 4a is provided, but also the first counterweight 4b and the second counterweight 4c, wherein the first counterweight 4b and the second counterweight 4c are used to replace the bottom counterweight. The counterweight 4a shares part of the moment, so that the bottom counterweight 4a can reduce its mass accordingly, that is, the thickness of the bottom counterweight 4a can be reduced, thereby reducing the size of the power module of the entire fuel cell 2 and reducing the occupancy inside the forklift Provide more space for other equipment on the forklift, and make it more convenient for other equipment to be arranged.

【Example 4】

As shown in Figure 2 and Figure 5, Embodiment 4 is based on Embodiment 3. Embodiment 4 is along the length direction of the forklift body 8, and the two secondary pillars 1d are respectively connected with the corresponding connecting beam 1b, secondary beam 1c and pillar 1a constitutes the third counterweight area and the fourth counterweight area, that is, the two secondary pillars 1d and the pillar 1a on one side thereof and the connecting beam 1b and the secondary beam 1c connected to it form the third counterweight area and the fourth counterweight area respectively area, the third counterweight area is provided with a third counterweight 4d, the fourth counterweight area is provided with a fourth counterweight 4e, the frame 1 is provided with connecting ear plates, the third counterweight 4d and the fourth counterweight The counterweight 4e is fixedly connected to the connection lugs of the frame 1 through threaded connections such as bolts.

In this embodiment, not only the bottom counterweight 4a, the first counterweight 4b and the second counterweight 4c, but also the third counterweight 4d and the fourth counterweight 4e are provided, wherein the third counterweight The weight 4d and the fourth counterweight 4e share part of the moment, so that the bottom counterweight 4a, the first counterweight 4b and the second counterweight 4c can reduce the mass accordingly, that is, the bottom counterweight 4a can be reduced , the thickness of the first counterweight 4b and the second counterweight 4c, thereby reducing the size of the power module of the entire fuel cell 2, reducing the space occupied inside the forklift, providing more layout space for other equipment on the forklift, and more It is convenient to arrange other equipment.

【Example 5】

As shown in Figure 2 and Figure 6, on the basis of Embodiments 3 to 4, Embodiment 5 also includes a fifth counterweight 4f and a sixth counterweight 4g, the fifth counterweight 4f and the sixth counterweight The cross-sectional shape of the counterweight 4g is L-shaped, the opening of the fifth counterweight 4f is opposite to the opening of the sixth counterweight 4g, and the two sides of the fifth counterweight 4f are respectively fixed on the bottom counterweight 4a The two sides of the sixth counterweight 4g are fixed on the bottom counterweight 4a and the second counterweight 4c respectively.

In the prior art, when the fuel cell 2 is used to replace the lead-acid battery or lithium battery of the original vehicle, it is common practice to design the power module of the fuel cell 2 to have the same weight as the replaced lead-acid battery or lithium battery. In the structure of the embodiment, since the second counterweight 4c and the sixth counterweight 4g are arranged at a position farther from the axis of the front wheel, it is possible to reduce the need for each counterweight while providing an equal moment. The total mass of the blocks, thereby saving the cost of purchasing counterweights, reducing the size of the frame and reducing the difficulty of designing and manufacturing the power module of the fuel cell 2.

[Example 6]

As shown in Figure 3, Figure 4 and Figure 7, Embodiment 6 is based on Embodiments 1 to 5, and the four corners of the bottom counterweight 4a of Embodiment 6 away from the end face of the frame 1 are respectively provided with shock absorbing pads 7, a total of four shock pads7. Moreover, a seventh counterweight 4i is provided on the end surface of the bottom counterweight 4a away from the frame 1 , and the seventh counterweight 4i is located between the four shock absorbing pads 7 .

As shown in Figure 3, the hydrogen bottle 5 is set on the bottom counterweight 4a through the hydrogen bottle bracket 6, and the end surface of the bottom counterweight 4a close to the frame 1 is provided with a bracket installation groove 4h, and the hydrogen bottle bracket 6 is far away from the side of the hydrogen bottle 5 One end is installed in the bracket installation groove 4h.

And in order to increase the quality of the entire power module, the frame 1 is a solid frame 1, that is, the four pillars 1a, the four connecting beams 1b, the two secondary beams 1c and the two secondary pillars 1d are all solid.

It should be noted that the above embodiments can be freely combined as required. The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (10)

1. A power module for a fuel cell forklift, comprising: A frame set inside the forklift body; a counterweight, the counterweight is arranged on the frame; A fuel cell, the fuel cell is arranged in the frame. 2. The power supply module of the fuel cell forklift according to claim 1, further comprising: a hydrogen bottle located in the frame, the hydrogen gas inlet of the fuel cell communicates with the hydrogen gas outlet of the hydrogen bottle; The counterweight is a bottom counterweight, and the bottom counterweight is arranged at the bottom of the frame. 3. The power module of the fuel cell forklift according to claim 2, characterized in that: Along the width direction of the forklift body, the two ends of the frame are respectively provided with a first vent and a second vent, and the first vent and the second vent constitute a heat dissipation channel for the fuel cell to dissipate heat , external air flows through the first vent, the fuel cell and the second vent sequentially. 4. The power module of the fuel cell forklift according to claim 2, characterized in that: The frame includes four pillars, four connecting beams, two secondary beams and two secondary pillars; The pillar is vertically arranged on the bottom counterweight; The secondary beam connects the middle positions of two adjacent pillars, and the axis direction of the secondary beam is parallel to the width direction of the forklift body; The secondary pillars are vertically arranged on the end surface of the secondary beam away from the bottom counterweight, and the secondary pillars are parallel to the pillars, and the secondary pillars are arranged in one-to-one correspondence with the secondary beams; The four connecting beams are respectively the first connecting beam, the second connecting beam, the third connecting beam and the fourth connecting beam, and the two ends of the first connecting beam and the second connecting beam are respectively connected to the One end of the secondary beam is connected to an end of the adjacent pillar away from the bottom counterweight, and the two ends of the third connecting beam and the fourth connecting beam are respectively connected to the adjacent pillar away from the bottom counterweight One end of the block, and the axis directions of the third connecting beam and the fourth connecting beam are parallel to the length direction of the forklift body; Along the length direction of the forklift body, the two secondary beams and the pillars on both sides and the bottom counterweight respectively form a first counterweight area and a second counterweight area, and the first counterweight area is A first counterweight is provided, and a second counterweight is provided at the second counterweight area. 5. The power module of the fuel cell forklift according to claim 4, characterized in that: Along the length direction of the forklift body, the two secondary pillars and the corresponding connecting beams, secondary beams and pillars form a third counterweight area and a fourth counterweight area, and the third counterweight area is provided with The third counterweight, the fourth counterweight is provided at the fourth counterweight area. 6. The power supply module of a fuel cell forklift according to claim 4, further comprising: a fifth counterweight and a sixth counterweight, the cross-sections of the fifth counterweight and the sixth counterweight The shapes are all L-shaped, and the opening of the fifth counterweight is opposite to the opening of the sixth counterweight; The two sides of the fifth counterweight are respectively fixed on the bottom counterweight and the first counterweight; The two sides of the sixth counterweight are respectively fixed on the bottom counterweight and the second counterweight. 7. The power module of the fuel cell forklift according to claim 2, characterized in that: Shock-absorbing pads are respectively provided at the four corners of the end surface of the bottom counterweight away from the frame. 8. The power supply module of the fuel cell forklift according to claim 7, characterized in that: A seventh counterweight is provided on the end surface of the bottom counterweight away from the frame, and the seventh counterweight is located between the four shock absorbing pads. 9. The power supply module of the fuel cell forklift according to claim 2, characterized in that: The hydrogen bottle is arranged on the bottom counterweight through a hydrogen bottle bracket; A bracket installation groove is provided on the end surface of the bottom counterweight close to the frame, and the end of the hydrogen bottle bracket away from the hydrogen bottle is installed in the bracket installation groove. 10. The power module of the fuel cell forklift according to claim 9, characterized in that: The frame is a solid frame.