CN202106830U - Electric automobile and guide mechanism for battery box thereof - Google Patents

Abstract

The utility model discloses a guiding mechanism for an electric vehicle and a battery box thereof. The guiding mechanism here comprises a first guiding end arranged on the battery box and a guiding plug for connecting with the first guiding end arranged on the power compartment of the electric vehicle. The second guide end is provided, one of the two guide ends is a male part, and the other is a female part. The guide mechanism also includes a fixed plate fixedly connected to the power cabin, and a sliding guide is slidably mounted on the fixed plate. column, the second guide end is set on the front end of the first guide end on the sliding guide column towards the battery box, and there is a set between the fixed plate and the slide guide column when the first guide end and the second guide end are guided and mated. It is an elastic member used to elastically buffer the impact force on the sliding guide column. When the first guide end on the battery box moves with the battery box, and after the two guide ends are guided and adapted, the sliding guide column moves backward under force, and the elastic member offsets the impact force on the sliding guide column in the form of elastic buffering.

Description

Guiding mechanism for electric vehicle and its battery box

technical field

The utility model relates to an electric vehicle, in particular to a guide mechanism for a battery box on the electric vehicle. the

Background technique

In recent years, with the awareness of environmental protection around the world, electric vehicles have been fully developed and promoted as clean and environmentally friendly green vehicles. As a power source for electric vehicles, batteries have an important impact on the applicability of electric vehicles. In addition to the important relationship with the performance of the battery itself, the use is also related to the performance of the battery box. the

The battery is fixed in the battery box, and the battery box is installed in the power cabin of the electric vehicle as a whole. For the convenience of installation, guide rails are often set on the battery box, and slideways corresponding to the guide rails of the battery box are set on the electric vehicle. After the battery box is pushed to the position, the battery box should be locked and fixed in the power compartment by the locking device, because the inertia of the battery box is relatively large, when the battery box is installed in the electric vehicle power compartment, slide along the guide rail to the locked position During the process, there may be a problem that the battery box rigidly collides with the bulkhead of the power cabin, which will damage the battery box and the power cabin, and also affect the normal operation of the batteries in the battery box. the

Utility model content

The purpose of the utility model is to provide a guiding mechanism for the upper battery box of an electric vehicle to solve the technical problem that the battery box rigidly collides with the bulkhead of the power cabin in the prior art due to the lack of a corresponding buffer guiding mechanism when the battery box is installed; at the same time The utility model also provides an electric vehicle using the above-mentioned guiding mechanism. the

In order to achieve the above purpose, the guiding mechanism for the electric vehicle battery box provided by the utility model adopts the following technical scheme: a guiding mechanism for the electric vehicle battery box, the guiding mechanism includes a first guiding mechanism for setting on the battery box end and a second guide end that is used to guide and mate with the first guide end on the power compartment of the electric vehicle, one of the two guide ends is a male part and the other is a female part, and the The guide mechanism also includes a fixed plate for fixed connection with the power compartment of the electric vehicle, a sliding guide column is slidably mounted on the fixed plate, and the second guide end is arranged at the front end of the sliding guide column, between the fixed plate and the sliding guide column. An elastic member for elastically buffering the impact force on the sliding guide post when the first guide end and the second guide end are guided and mated is arranged between the guide posts. the

The male part of the two guide ends has a tapered structure, and the female part has an inner chamfer structure for guiding and fitting corresponding to the tapered structure of the male part. the

The second guide end on the sliding guide column is a male part, and the rear part of the second guide end on the slide guide column is provided with a stop convex for cooperating with the corresponding end surface stopper of the first guide end as the female part. edge. the

The elastic element is set on the sliding guide column, and a guide cover for guiding the expansion and contraction of the elastic element is fixed behind the second guide end on the sliding guide column, and the front end of the elastic element is pressed against the rear end surface of the guide cover , the rear end of the elastic member is press-fitted with the end face of the fixed plate facing the guide cover, and the rear end of the sliding guide column is correspondingly equipped with a one-way stop structure for preventing the sliding guide column from falling out of the fixed plate under the action of the elastic member . the

The fixed plate is provided with a through hole for sliding assembly with the sliding guide post, the through hole is a waist-shaped hole, and the fitting part on the sliding guide post corresponding to the through hole is a waist-shaped structure corresponding to the waist-shaped hole , the one-way stop structure assembled on the sliding guide column is a stop nut screwed on the rear end of the sliding guide column passing through the waist-shaped hole. the

The electric vehicle provided by the utility model adopts the following technical scheme: an electric vehicle, including a power cabin and a battery box installed in the power cabin, and a battery box guiding mechanism is arranged between the power cabin and the battery box of the electric vehicle , the guide mechanism includes a first guide end arranged on the battery box and a second guide end arranged on the power compartment of the electric vehicle and mated with the first guide end, one of the two guide ends It is a male part and the other is a female part. The guide mechanism also includes a fixed plate fixedly connected to the power cabin, a sliding guide column is slidably mounted on the fixed plate, and the second guide end is arranged on the sliding The front end of the guide column facing the first guide end on the battery box is provided between the fixed plate and the sliding guide column for elastic buffering of the sliding guide column when the first guide end and the second guide end are guided and mated. The elastic member subjected to the impact force. the

The male part of the two guide ends has a tapered structure, and the female part has an inner chamfer structure for guiding and fitting corresponding to the tapered structure of the male part. the

The battery box is provided with a guide cylinder, and the first guide end is arranged on the guide cylinder toward the rear end of the sliding guide post, the first guide end is a female part, and the second guide on the slide guide post The end is a male part, and a stopper flange is arranged on the rear part of the second guide end on the sliding guide post for matching with the corresponding end surface stopper of the first guide end as a female part. the

The elastic element is set on the sliding guide column, and a guide cover for guiding the expansion and contraction of the elastic element is fixed behind the second guide end on the sliding guide column, and the front end of the elastic element is pressed against the rear end surface of the guide cover , the rear end of the elastic member is press-fitted with the end face of the fixed plate facing the guide cover, and the rear end of the sliding guide column is correspondingly equipped with a one-way stop structure for preventing the sliding guide column from falling out of the fixed plate under the action of the elastic member . the

The fixed plate is provided with a through hole for sliding assembly with the sliding guide post, the through hole is a waist-shaped hole, and the fitting part on the sliding guide post corresponding to the through hole is a waist-shaped structure corresponding to the waist-shaped hole , the one-way stop structure assembled on the sliding guide column is a stop nut screwed on the rear end of the sliding guide column passing through the waist-shaped hole. the

The beneficial effects of the utility model are: after the guide mechanism for the electric vehicle battery box provided by the utility model is applied to the electric vehicle, when the battery box with a large inertia collides with the power cabin, the first guide end on the battery box and the The second guide end of the front end of the sliding guide column on the power compartment is guided and adapted, and the first guide end and the second guide end are guided and inserted to guide the moving direction of the battery box. The sliding guide column is received by the first guide end through the second guide end. Under the action of top pressure, the sliding guide column will move backwards, and the elastic member will offset the impact force on the sliding guide column in the form of elastic buffer, so as to buffer the impact of the battery box on the power compartment and eliminate the rigid impact of the battery box on the power compartment harm caused. the

On the electric vehicle provided by the utility model, a guiding mechanism with a buffer device is set between the battery box and the power cabin, and an elastic member is arranged between the sliding guide column and the fixed plate in the guiding mechanism as a buffer device. The first guide end on the top moves with the battery box. After the first guide end and the second guide end are guided and adapted, the sliding guide column is forced to move backward, and the elastic member offsets the impact force on the sliding guide column in the form of elastic buffer. , Offset the impact force of the battery box due to inertia, eliminate the rigid impact between the original battery box and the power compartment, avoid the damage caused by the rigid impact to the power compartment and the battery box, and also avoid the rigid impact to the battery The harm caused by the battery in the box improves the safety performance of the battery box. the

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the guide mechanism for the battery box provided in the utility model;

Fig. 2 is a partial structural schematic diagram of an electric vehicle using the guiding mechanism shown in Fig. 1 .

Detailed ways

As shown in Figure 1, a guide mechanism for a battery box of an electric vehicle mainly includes two parts: one part is a guide cylinder 5 fixed on the battery box and moves synchronously with the battery box; The rear end is provided with the first guide end as a parent part for guiding and fitting with the second guide end on the sliding guide column; the other part is assembled for the sliding guide column fixed on the power cabin, and the sliding guide column The assembly includes a fixed plate 1 used to be fixed on the bulkhead of the power cabin during use, and a through hole is opened on the fixed plate 1, and a sliding guide column 6 is slidably installed in the through hole of the fixed plate. In this embodiment Among them, the front end of the sliding guide post 6 is provided with a second guide end 2 as a male part for guiding and fitting with the first guide end on the guide cylinder. In this embodiment, the second guide end 2 of the slide guide post 6 It is a tapered structure, and the first guide end on the guide cylinder 5, which is adapted to the guide of the tapered structure of the second guide end, is an inner chamfer structure. The rear part of 2 is provided with a stopper flange 9, and this stopper flange 9 is used for stopper cooperation with the corresponding end face provided with the first guide end of the guide cylinder. On the sliding guide column 6, a guide cover 4 for guiding the telescopic direction of the elastic member is integrally fixed behind the second guide end, and an elastic member is sleeved behind the guide cover 5 on the slide guide column 6. In this implementation In the example, the elastic member is a cylindrical buffer spring 3, the corresponding front end of the cylindrical buffer spring 3 is pressed against the rear end face of the guide cover 4, and the corresponding rear end is pressed against the end face of the fixed plate 1 facing the guide cover. . The rear end of the sliding guide column 6 passing through the hole is equipped with a one-way stop structure for preventing the sliding guide column from detaching from the fixing plate under the action of the elastic member. In this embodiment, the one-way stop structure here The stop structure is a stop nut 7 screwed on the threaded section of the rear end of the sliding guide post 6, and the corresponding position of the slide guide post 6 and the stop nut 7 is perforated to prevent the stop nut from sliding and guiding. The fixed pin 8 loosened and disengaged from the column, in this embodiment, the fixed pin 8 is a cotter pin structure. When the stop nut is screwed onto the sliding guide column 6, in order to prevent the sliding guide column from synchronously rotating, an anti-rotation structure needs to be designed. In this embodiment, the through hole on the fixed plate 1 is designed as a waist-shaped hole for anti-rotation. At this time, the position on the sliding guide post 6 for sliding fit corresponding to the through hole is a waist-shaped hole corresponding to the waist-shaped hole. structure, the anti-rotation waist hole and the anti-rotation waist structure can prevent the synchronous rotation of the sliding guide column. The waist hole here is a long hole with a straight line in the middle. The two ends of the segment long hole are the structure of the semi-circular hole of the semi-circular segment, and the waist-shaped structure corresponding to the waist-shaped hole on the sliding guide column is a transition with two parallel flat sides and the corresponding two ends of the two flat sides The connection surface is a semicircular arc surface structure. the

The inner chamfer design of the guide cylinder and the taper design of the sliding guide column increase the space for guiding the guide cylinder and the sliding guide column, even if there is a slight deviation, the two can smoothly complete the guidance. the

The elastic member in the above embodiment is a cylindrical buffer spring, but it can also be an elastic member of other structures, such as a conical spring or a disc spring. the

In the above embodiment, the guide part of the fixed guide post is a female part, and the guide section of the sliding guide post is a male part. It is also possible to design the guide part of the fixed guide post as a male part with a tapered structure, and the sliding guide post The guide section is designed as a parent piece with an inner chamfer structure. the

In the above embodiment, the elastic member is a compression spring structure. At this time, the middle part of the guide cover can be provided with a counterbore seat to prevent the spring from being unstable, so as to guide the compression spring. The elastic part adopts a compression spring structure. At this time, the elastic part and the second guide end are located on one side of the fixed plate, and a tension spring structure can also be used. At this time, the elastic part and the second guide end are respectively located on both sides of the fixed plate, and the elastic part One end is fixed on the corresponding side of the fixed plate, and the other end is fixedly connected with the rear end of the sliding guide post, so that when the second guide end on the slide guide post is guided and mated with the first guide end on the guide cylinder , the sliding guide column will move backward under force. At this time, the tension spring will be stretched under force, and the tension spring will give the sliding guide column a reaction force to prevent the sliding guide column from moving backward, thereby buffering the impact received by the sliding guide column. In this case, the tension spring can be sleeved on the sliding guide column, or can be evenly arranged in multiples around the axial direction of the sliding guide column. the

As shown in Figure 2, use the electric vehicle of guiding mechanism as shown in Figure 1, electric vehicle comprises power cabin 12 and the battery box 13 that is installed in the power cabin, is provided with battery box between power cabin 12 and battery box 13 Guide mechanism, the structure of the guide mechanism is shown in Figure 1, the guide cylinder 5 in the guide mechanism is fixed on the battery box, and the fixed plate 1 is fixed on the bulkhead of the power cabin 12, for sliding assembly on the fixed plate The sliding guide column 6 on the top has a sliding gap and for the convenience of arranging the stop nut, the fixed plate 1 is a three-dimensional structure with a support wall, and the described via hole slidingly matched with the sliding guide column is arranged on the fixed plate by the support wall. The end face of the support is press-fitted with the rear end of the cylindrical buffer spring. the

When the battery box 13 is pushed to the position along the guide rail and the slideway, due to the inertia of the battery box 13, the battery box drives the guide cylinder to continue to move, and the sliding guide column 6 enters the guide cylinder 5, and under the top pressure of the guide cylinder 5 , the sliding guide column 6 will slide backwards, at this time, the guide cover 4 on the sliding guide column 6 will compress the cylindrical buffer spring 3, and the cylindrical buffer spring 3 will generate a reaction force to act on the battery through the sliding guide column 6 and the guide cylinder 5 box, so as to play a buffer role in the guiding process, reduce the damage caused by the rigid collision of the battery box 13 and the power cabin 12, facilitate the normal locking of the battery box, and improve the overall safety.

Claims (10)

1. A guide mechanism for a battery box of an electric vehicle, characterized in that: the guide mechanism includes a first guide end for being arranged on the battery box and a first guide end for being arranged on the power compartment of the electric vehicle The second guide end that is mated with the end guide, one of the two guide ends is a male part and the other is a female part, and the guide mechanism also includes a fixing device for fixed connection with the power cabin of an electric vehicle. A sliding guide column is slidably mounted on the fixed plate, the second guide end is arranged at the front end of the slide guide column, and the first guide end and the second guide end are arranged between the fixed plate and the slide guide column. The elastic part used to elastically buffer the impact force on the sliding guide column when the guide end guides mating. 2. The guide mechanism for electric vehicle battery box according to claim 1, characterized in that: the male part in the two guide ends has a tapered structure, and the female part is used to match the tapered structure of the male part. Inner chamfer structure adapted to the corresponding guide. 3. The guide mechanism for electric vehicle battery box according to claim 2, characterized in that: the second guide end on the sliding guide column is a male part, and is arranged on the rear of the second guide end on the slide guide column There is a stop flange for cooperating with a corresponding end face stop of the first guide end as the female part. 4. The guide mechanism for electric vehicle battery box according to claim 1, 2 or 3, characterized in that: the elastic member is sleeved on the sliding guide column, and is fixed behind the second guide end on the sliding guide column. There is a guide cover for guiding the expansion and contraction of the elastic member. The front end of the elastic member is press-fitted with the rear end surface of the guide cover, and the rear end of the elastic member is press-fitted with the end face of the fixed plate facing the guide cover. The end is equipped with a one-way stop structure for preventing the sliding guide post from detaching from the fixing plate under the action of the elastic member. 5. The guiding mechanism for the electric vehicle battery box according to claim 4, characterized in that: the fixed plate is provided with a through hole for sliding assembly with the sliding guide post, the through hole is a waist-shaped hole, and the sliding guide post The matching part corresponding to the via hole is a waist-shaped structure corresponding to the waist-shaped hole, and the one-way stop structure assembled on the sliding guide column is screwed on the sliding guide column passing through the waist-shaped hole. Stop nut on rear end. 6. An electric vehicle, comprising a power cabin and a battery box installed in the power cabin, characterized in that: a battery box guiding mechanism is arranged between the power cabin and the battery box of the electric vehicle, and the guiding mechanism includes a The first guide end on the battery box and the second guide end provided on the power compartment of the electric vehicle and mated with the first guide end, one of the two guide ends is a male part, and the other is a The parent part, the guide mechanism also includes a fixed plate fixedly connected to the power compartment, a sliding guide column is slidably mounted on the fixed plate, and the second guide end is arranged on the sliding guide column toward the battery box The front end of the first guide end is provided between the fixed plate and the sliding guide column. When the first guide end and the second guide end are guided and mated, an elastic member is used to elastically buffer the impact force of the sliding guide column. . 7. The electric vehicle according to claim 6, characterized in that: the male part in the two guide ends has a tapered structure, and the female part is used for guiding and fitting corresponding to the tapered structure of the male part Internal chamfer structure. 8. The electric vehicle according to claim 7, characterized in that: said battery box is provided with a guide cylinder, said first guide end is arranged on the guide cylinder towards the rear end of the sliding guide column, said The first guide end is a female part, the second guide end on the sliding guide post is a male part, and the rear part of the second guide end on the sliding guide post is provided with a corresponding end face stopper for the first guide end as a female part. Fitting stop flange. 9. The electric vehicle according to claim 6, 7 or 8, characterized in that: the elastic member is sleeved on the sliding guide column, and a device for aligning the elastic member is fixed behind the second guide end on the sliding guide column. The guide cover is stretched and guided. The front end of the elastic part is press-fitted with the rear end surface of the guide cover. The rear end of the elastic part is press-fitted with the end face of the fixed plate facing the guide cover. The corresponding assembly is on the rear end of the sliding guide column. There is a one-way stop structure for preventing the sliding guide post from detaching from the fixing plate under the action of the elastic member. 10. The electric vehicle according to claim 9, characterized in that: the fixed plate is provided with a through hole slidingly assembled with the sliding guide post, the through hole is a waist-shaped hole, and the sliding guide post is connected to the through hole. The corresponding fitting part is a waist-shaped structure corresponding to the waist-shaped hole, and the one-way stop structure assembled on the sliding guide column is a stop screw mounted on the rear end of the sliding guide column passing through the waist-shaped hole. block nut.

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