Connecting method for chassis gas circuit of battery replacing system

Abstract

The invention discloses a connection method for a chassis gas circuit of a battery replacing system, which belongs to the technical field of battery distribution and comprises the following steps: disconnecting / connecting the chassis gas circuit of the battery replacing system with a main gas circuit of a battery distribution vehicle; an air compressor and a first air storage cylinder are sequentially arranged on the battery replacing system chassis air path, the rear end of the first air storage cylinder is connected with a battery replacing lock mechanism air path, an air pressure sensor is arranged on the first air storage cylinder, and the air pressure sensor is used for detecting the air pressure of the first air storage cylinder; when the air pressure of the first air storage cylinder is lower than a set value, a signal is provided for starting of the air compressor; when the battery replacing system chassis gas circuit is communicated with the battery distribution vehicle main gas circuit, the front end of the first gas storage cylinder is connected with the battery distribution vehicle main gas circuit through a one-way valve. Sufficient high-pressure gas can be provided for the battery replacing lock mechanism, and the requirement for continuous replacement of the battery replacing battery box on the battery distribution vehicle is met.

Description

Technical Field

[0001] The present invention relates to the field of battery distribution technology, and in particular to a method for connecting a chassis gas circuit of a battery replacement system. Background Art

[0002] In the battery replacement of heavy trucks, battery distribution is also an important component. At present, battery distribution equipment includes mobile battery replacement vehicles (tractors) and battery distribution vehicles. In order to transport more battery replacement battery boxes, semi-trailers will be selected as battery distribution vehicles. There will be multiple sets of battery replacement lock mechanisms driven by air chamber piston cylinders on the battery distribution vehicle. In the process of continuous replacement or lifting of battery boxes, a large amount of high-pressure gas is required to control the opening and closing of the battery replacement lock mechanism. The high-pressure gas in the gas storage device on the original chassis of the semi-trailer can usually only meet the needs of driving and parking, which is not enough to meet the needs of the battery replacement lock mechanism for high-pressure gas when the battery replacement battery boxes on the battery transport vehicle are continuously replaced. Summary of the invention

[0003] The purpose of the present invention is to overcome the technical problems existing in the prior art and provide a method for connecting the chassis gas circuit of a battery swapping system to ensure that there is sufficient gas in the chassis gas circuit of the battery swapping system.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] In a first aspect, a method for connecting a chassis gas circuit of a battery swapping system is provided, comprising:

[0006] Disconnect the chassis air circuit of the battery exchange system from the main air circuit of the battery delivery vehicle; arrange an air compressor and a first air tank in sequence on the chassis air circuit of the battery exchange system, wherein the rear end of the first air tank is connected to the air circuit of the battery exchange lock mechanism, and an air pressure sensor is provided on the first air tank, and the air pressure sensor is used to detect the air pressure of the first air tank and provide a signal for starting the air compressor when the air pressure of the first air tank is lower than the set value.

[0007] In some preferred embodiments, a dryer with a first pressure regulating valve is connected between the first air storage cylinder and the air compressor.

[0008] In some preferred embodiments, a second pressure regulating valve is provided between the first air reservoir and the air circuit of the battery-changing lock mechanism.

[0009] In some preferred embodiments, a plurality of independently operated power-changing lock mechanisms are provided on the gas circuit of the power-changing lock mechanism, and a gas distributor is provided in each group of the power-changing lock mechanisms.

[0010] Preferably, each battery-changing lock mechanism is provided with a sensor for detecting the state of the battery-changing lock.

[0011] In a second aspect, a method for connecting a chassis gas circuit of a power exchange system is provided, comprising:

[0012] Connect the chassis gas circuit of the battery swap system with the main gas circuit of the battery delivery vehicle; arrange an air compressor and a first air reservoir in sequence on the chassis gas circuit of the battery swap system, wherein the rear end of the first air reservoir is connected to the gas circuit of the battery swap lock mechanism, and an air pressure sensor is arranged on the first air reservoir, and the air pressure sensor is used to detect the air pressure of the first air reservoir, and provide a signal for starting the air compressor when the air pressure of the first air reservoir is lower than the set value;

[0013] The front end of the first gas storage cylinder is connected to the main gas circuit of the battery delivery vehicle through a one-way valve.

[0014] In some preferred embodiments, the main gas circuit of the battery delivery vehicle is also connected to the main gas circuit of the tractor vehicle.

[0015] Preferably, the main gas circuit of the battery delivery vehicle is connected to the main gas circuit of the tractor vehicle via a quick-connect connector.

[0016] Preferably, the battery delivery vehicle is provided with a brake air chamber, and the main air circuit of the battery delivery vehicle is connected to the brake air chamber.

[0017] Preferably, a second gas tank is provided on the main gas circuit of the battery delivery vehicle.

[0018] It should be further explained that the technical features corresponding to the above options can be combined or replaced with each other to form a new technical solution if there is no conflict.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) When the chassis gas circuit of the battery swapping system is disconnected from the main gas circuit of the battery delivery vehicle, the chassis gas circuit of the battery swapping system is used alone. An air compressor and a first air storage cylinder are arranged in the original chassis gas circuit of the battery swapping system. When the air pressure in the first air storage cylinder is insufficient, the air compressor is turned on to replenish high-pressure gas in the first air storage cylinder to ensure that there is sufficient gas in the gas circuit of the battery swapping lock mechanism, provide sufficient high-pressure gas for driving the battery swapping lock mechanism, provide guarantee for realizing the selective opening and closing of multiple battery swapping lock mechanisms, and meet the continuous replacement of battery boxes on the battery delivery vehicle.

[0021] (2) When the present invention connects the chassis gas circuit of the battery exchange system with the main gas circuit of the battery delivery vehicle, a one-way valve is provided between the first gas reservoir and the main gas circuit of the battery delivery vehicle. On the one hand, the main gas circuit of the battery delivery vehicle is used to replenish gas for the battery exchange lock mechanism, and on the other hand, the one-way valve only allows gas from the main gas circuit of the battery delivery vehicle to enter. When the gas in the main gas circuit of the battery delivery vehicle is insufficient (for example, the tractor is separated), the battery delivery vehicle is not allowed to use the gas in the battery exchange chassis gas circuit, further ensuring that there is sufficient gas in the battery exchange chassis gas circuit.

[0022] (3) In some examples, a dryer with a first pressure regulating valve is provided between the first air storage tank and the air compressor. On the one hand, the moisture in the high-pressure air in the air path of the battery swap chassis can be dried out. On the other hand, the pressure regulating valve is used to limit the maximum pressure value exceeding the first air storage tank, thereby ensuring the safety of the first air storage tank.

[0023] (4) In some examples, a second pressure regulating valve is provided between the first air reservoir and the air circuit of the battery-changing lock mechanism to limit the air pressure in the air circuit of the battery-changing lock mechanism and ensure the safety of the air circuit.

[0024] (5) In some examples, the main gas circuit of the battery delivery vehicle is also connected to the main gas circuit of the tractor vehicle. The main gas circuit of the tractor vehicle can provide gas to the main gas circuit of the battery delivery vehicle to ensure the driving and parking of the battery delivery vehicle, and can also replenish gas for the battery replacement lock mechanism.

[0025] (6) In some examples, the gas circuit of the battery lock mechanism is provided with multiple groups of independently operated battery lock mechanisms, and each group of battery lock mechanisms is provided with a gas distributor. The gas distributor cooperates with corresponding control instructions to realize the selective opening and closing of multiple battery lock mechanisms, thereby realizing accurate locking or releasing of multiple battery boxes.

[0026] (7) In some examples, a sensor for detecting the status of the battery change lock is provided on each battery change lock mechanism to detect whether the battery change lock is in place, thereby ensuring accurate control of the battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a connection principle diagram of the chassis gas circuit of the battery swap system shown in an embodiment of the present invention when used alone;

[0028] Figure 2 This is a schematic diagram of the connection between the chassis gas circuit of the battery replacement system and the main gas circuit of the battery delivery vehicle shown in an embodiment of the present invention;

[0029] Figure 3 A physical diagram of the chassis gas circuit of the battery swap system shown in an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of a single-group power-changing lock mechanism according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various configurations. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the directions or positional relationships indicated by "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are directions or positional relationships based on the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] It should be noted that the defects existing in the solutions in the above-mentioned prior art are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above-mentioned problems and the solutions proposed in the embodiments of the present application for the above-mentioned problems below should all be the contributions made by the inventor to the present application in the process of invention and creation, and should not be understood as technical contents known to technical personnel in this field.

[0035] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] In view of the technical problems pointed out in the background technology, the embodiments provided by the present invention are as follows:

[0037] Reference Figure 1 In an exemplary embodiment, a chassis gas circuit of a battery replacement system of a battery delivery vehicle is provided. When the chassis gas circuit of the battery replacement system is disconnected from the main gas circuit of the battery delivery vehicle, the chassis gas circuit of the battery replacement system is used alone, and includes an air compressor 1 and one or more first air storage cylinders 2 arranged in sequence on a high-pressure gas pipeline. The rear end of the first air storage cylinder 2 is connected to the battery replacement lock mechanism gas circuit 3. The first air storage cylinder 2 is provided with an air pressure sensor 4. The air pressure sensor 4 is used to detect the air pressure of the first air storage cylinder 2 and provide a signal for starting the air compressor 1 when the air pressure of the first air storage cylinder 2 is lower than a set value.

[0038] Specifically, the first gas cylinder 2 stores high-pressure gas, which is used to provide gas for the gas circuit 3 of the battery-changing lock mechanism to control the opening and closing of the battery-changing lock mechanism. When the gas circuit is working, the air pressure in the first gas cylinder 2 is detected in real time by the air pressure sensor 4, and an air pressure threshold is set for the first gas cylinder 2 in advance. When the detected value is lower than the air pressure threshold, it indicates that the current air pressure in the first gas cylinder 2 is insufficient. At this time, the air compressor 1 is turned on to replenish high-pressure gas in the first gas cylinder 2 to ensure that there is sufficient gas in the gas circuit 3 of the battery-changing lock mechanism, to provide sufficient high-pressure gas for driving the battery-changing lock mechanism, to provide a guarantee for the selective opening and closing of multiple groups of battery-changing lock mechanisms (area A in the figure), and to meet the continuous replacement of battery boxes on the battery delivery vehicle.

[0039] In some examples, a dryer 5 with a first pressure regulating valve is connected between the first air storage cylinder 2 and the air compressor 1. On the one hand, it can dry out the moisture in the high-pressure air of the battery-swap chassis air circuit, and on the other hand, the first pressure regulating valve is an unloading valve, which is used to limit the maximum pressure value exceeding the first air storage cylinder 2 to ensure the safety of the first air storage cylinder 2.

[0040] In some examples, a second pressure regulating valve 6 is provided between the first air reservoir 2 and the power-changing lock mechanism gas circuit 3. The second pressure regulating valve 6 limits the maximum atmospheric pressure in the power-changing lock mechanism gas circuit 3 to ensure gas circuit safety.

[0041] It should be noted that the above-mentioned chassis gas circuit of the battery exchange system is used separately on the battery delivery vehicle. It does not need to provide gas through the main gas circuit 7 of the battery delivery vehicle. The gas supply to the gas circuit of the battery exchange lock mechanism can be achieved only through its own air compressor 1 and the first air storage cylinder 2.

[0042] In another exemplary embodiment, the above-mentioned chassis gas circuit of the battery swap system is not used alone on the battery delivery vehicle, and the chassis gas circuit of the battery swap system can be connected to the battery delivery vehicle main gas circuit 7 of the battery delivery vehicle. Specifically, Figure 2-Figure 3 As shown, the front end of the first gas cylinder 2 is connected to the main gas circuit 7 of the battery delivery vehicle, and a one-way valve 8 is provided between the first gas cylinder 2 and the main gas circuit 7 of the battery delivery vehicle. On the one hand, the main gas circuit 7 of the battery delivery vehicle can be used to supplement the high-pressure gas for the battery swap lock mechanism (area A in the figure). On the other hand, due to the provision of the one-way valve 8, the gas circuit only allows the gas from the main gas circuit 7 of the battery delivery vehicle to enter, and the battery delivery vehicle is not allowed to use the gas in the gas circuit of the battery swap chassis, further ensuring that the gas pressure in the gas circuit of the battery swap chassis is stable and the gas source is sufficient.

[0043] In another exemplary embodiment, the main gas circuit 7 of the battery delivery vehicle is also connected to the main gas circuit 9 of the tractor. Specifically, the battery delivery vehicle is towed by the tractor during delivery. The main gas circuit 9 of the tractor may be provided with an air compressor (not shown in the figure) and other structures for generating high-pressure gas. The main gas circuit 7 of the battery delivery vehicle is used to control the driving and parking of the battery delivery vehicle. Figure 2As shown, the left side of the main gas circuit 7 of the battery delivery vehicle is connected to the main gas circuit 9 of the tractor, and is connected to the air compressor on the tractor. The high-pressure gas entering from the main gas circuit 9 of the tractor will be stored in the second first gas reservoir 71 in the main gas circuit 7 of the battery delivery vehicle, and according to actual needs, the high-pressure gas is provided to the brake air chamber 72 provided on the battery delivery vehicle to control the tightness of the brake, that is, the main gas circuit 7 of the battery delivery vehicle is connected to the brake air chamber on the battery delivery vehicle. Among them, the main gas circuit 7 of the battery delivery vehicle is connected or separated from the main gas circuit 9 of the tractor through a quick connector (not shown).

[0044] It should be noted that in some cases, when the tractor is separated from the battery delivery vehicle, the main gas circuit 7 of the battery delivery vehicle is separated from the main gas circuit of the tractor. If the one-way valve 8 is not provided, the gas in the gas circuit 3 of the battery-changing lock mechanism will flow into the main gas circuit 7 of the battery delivery vehicle, resulting in insufficient gas in the gas circuit 3 of the battery-changing lock mechanism. Therefore, when the chassis gas circuit of the battery-changing system is connected to the main gas circuit 7 of the battery delivery vehicle, it is preferably provided with a one-way valve 8 so that the air compressor 1 does not need to consider the high and low air pressure in the main gas circuit 7 of the battery delivery vehicle, so as to meet the battery delivery vehicle after being separated from the tractor. The vehicle can also independently complete the control of the battery-changing lock mechanism. At the same time, when the battery delivery vehicle needs to move, the high-pressure gas in the second and first gas storage cylinders 71 can drive the piston in the brake air chamber 72 to move, thereby releasing the brake. For example, the tractor tows the battery delivery vehicle to the middle or after the battery-changing station to complete other tasks, and the battery delivery vehicle stops to complete the battery-changing one by one, and the battery delivery vehicle can still be moved by other traction tools.

[0045] In some examples, the power-changing lock mechanism gas circuit 3 is provided with a plurality of independently operated power-changing lock mechanisms, each of which is as follows: Figure 1 Or as shown in area A in 2, specifically, the enlarged view of area A is as shown Figure 4 As shown, a gas distributor 10 is provided in each battery-changing lock mechanism. Each battery-changing lock mechanism realizes opening or closing of multiple lock mechanisms at the same time through the gas distributor 10, and the multiple battery-changing lock mechanisms operate independently and are controlled separately according to instructions. One or more groups can be opened separately according to actual needs to realize accurate locking or release of multiple battery boxes.

[0046] Furthermore, each battery lock mechanism is provided with a sensor (not shown in the figure) for detecting the state of the battery lock. The sensor is used to detect whether the battery lock is in place, thereby ensuring accurate control of the battery box. The sensor model in this embodiment is TZ-7140. In other embodiments, it can also be other sensors that can detect the state of the battery lock, such as a pressure sensor.

[0047] The above specific implementation methods are detailed descriptions of the present invention. It cannot be determined that the specific implementation methods of the present invention are limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions and substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the protection scope of the present invention.

Claims

1. A method for connecting the chassis gas circuit of a battery swap system, characterized in that: include: Disconnect the chassis air circuit of the battery exchange system from the main air circuit of the battery delivery vehicle; arrange an air compressor and a first air tank in sequence on the chassis air circuit of the battery exchange system, wherein the rear end of the first air tank is connected to the air circuit of the battery exchange lock mechanism, and an air pressure sensor is provided on the first air tank, and the air pressure sensor is used to detect the air pressure of the first air tank and provide a signal for starting the air compressor when the air pressure of the first air tank is lower than the set value.

2. The method for connecting the chassis gas circuit of the battery replacement system according to claim 1, characterized in that: A dryer with a first pressure regulating valve is connected between the first air storage cylinder and the air compressor.

3. The method for connecting the chassis gas circuit of the battery replacement system according to claim 1, characterized in that: A second pressure regulating valve is provided between the first air reservoir and the air circuit of the battery-changing lock mechanism.

4. The method for connecting the chassis gas circuit of the battery replacement system according to claim 1, characterized in that: The gas circuit of the power-changing lock mechanism is provided with a plurality of independently operated power-changing lock mechanisms, and each power-changing lock mechanism is provided with a gas distributor, and the gas distributor is connected with the first gas storage cylinder through a pipeline.

5. The method for connecting the chassis gas circuit of the battery replacement system according to claim 4, characterized in that: Each set of power-changing lock mechanisms includes a plurality of power-changing locks, and the power-changing locks are provided with sensors for detecting the working status of the power-changing locks.

6. A method for connecting the chassis gas circuit of a battery swap system, characterized in that: include: Connect the chassis gas circuit of the battery swap system with the main gas circuit of the battery delivery vehicle; arrange an air compressor and a first air reservoir in sequence on the chassis gas circuit of the battery swap system, wherein the rear end of the first air reservoir is connected to the gas circuit of the battery swap lock mechanism, and an air pressure sensor is arranged on the first air reservoir, and the air pressure sensor is used to detect the air pressure of the first air reservoir, and provide a signal for starting the air compressor when the air pressure of the first air reservoir is lower than the set value; The front end of the first gas storage cylinder is connected to the main gas circuit of the battery delivery vehicle through a one-way valve.

7. The method for connecting the chassis gas circuit of the battery replacement system according to claim 6, characterized in that: The main gas circuit of the battery delivery vehicle is also connected to the main gas circuit of the tractor vehicle.

8. The method for connecting the chassis gas circuit of the battery replacement system according to claim 7, characterized in that: The main gas circuit of the battery delivery vehicle is connected to the main gas circuit of the tractor vehicle through a quick-plug connector.

9. The method for connecting the chassis gas circuit of the battery replacement system according to claim 6, characterized in that: The battery delivery vehicle is provided with a brake air chamber, and the main air path of the battery delivery vehicle is communicated with the brake air chamber.

10. The method for connecting the chassis gas circuit of the battery replacement system according to claim 6, characterized in that: A second gas storage cylinder is provided on the main gas circuit of the battery delivery vehicle.

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