CN218385682U - Liquid injection module and lithium battery liquid injection machine - Google Patents

Abstract

The utility model provides a annotate liquid module and lithium cell and annotate liquid machine annotates the liquid module and includes: the liquid injection layers are provided with a plurality of liquid injection cavities; the measurement layer is equipped with a plurality of measurement chambeies, and every measurement chamber is equipped with the measurement liquid outlet, and every measurement liquid outlet is connected with a notes liquid chamber of notes liquid layer of difference to annotate liquid to the notes liquid chamber that corresponds. This annotate liquid module and lithium cell annotate liquid machine through the quantity of a plurality of notes liquid chambeies in every notes liquid layer and the quantity one-to-one of a plurality of measurement chambeies in the measurement layer for every measurement chamber can annotate liquid for one of the correspondence of every notes liquid layer, set up to a plurality ofly when the measurement layer, every measurement chamber can annotate liquid chamber for a plurality of notes liquid that correspond in the measurement layer and annotate liquid, annotate the liquid module owing to reduced the setting on measurement layer, the system architecture can be simplified, the cost is reduced, the height is reduced, thereby be favorable to the maintenance.

Description

Liquid injection module and lithium battery liquid injection machine

Technical Field

The utility model relates to a lithium battery technology field, concretely relates to annotate liquid module and lithium cell liquid machine.

Background

Lithium batteries are batteries using a nonaqueous electrolyte solution, which uses lithium metal or lithium alloy as a positive electrode material and a negative electrode material. Lithium batteries can be broadly classified into two types: lithium metal batteries and lithium ion batteries, wherein the lithium ion batteries are rechargeable.

The lithium cell need fill electrolyte in inside in process of production, and the lithium cell is arranged in and is annotated liquid circulation layer, pours into electrolyte into to annotating liquid circulation layer through measurement layer. Generally, as shown in fig. 1, a conventional injection system 100 ″ is shown, in which one metering layer is matched with one injection circulation layer to form an independent unit, two independent units are overlapped to form an injection module, and the injection module is composed of two metering layers and two injection circulation layers.

Therefore, each liquid injection module is required to be composed of four closed cavities, and the system is complex; the installation height is high, is unfavorable for the maintenance.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming every measurement layer that exists among the prior art and annotating the liquid module of annotating that the liquid formed for a notes liquid layer alone and lead to the system complicated, is unfavorable for the technical defect of maintenance to a simple, the highly low notes liquid module that is favorable to the maintenance of system is provided.

In order to solve the above problem, the utility model provides an annotate liquid module, include: each liquid injection layer is provided with a plurality of liquid injection cavities; the measurement layer is equipped with a plurality of measurement chambeies, every the measurement chamber is equipped with the measurement liquid outlet, every the measurement liquid outlet with different one of notes liquid layer notes the liquid chamber and connects to corresponding it annotates liquid to annotate the liquid chamber.

The application provides an annotate liquid module, measurement layer realizes the measurement to annotating the liquid through the measurement chamber, and wherein, annotate the liquid and can be electrolyte. The number of a plurality of notes liquid chambers in every notes liquid layer and the number one-to-one of a plurality of measurement chambeies in the measurement layer for every measurement chamber can annotate liquid for a liquid chamber of annotating of the correspondence of every notes liquid layer. When the measurement layer sets up to a plurality ofly, every measurement chamber can annotate the liquid chamber for a corresponding one in a plurality of measurement layers and annotate the liquid, that is, annotate the liquid chamber with a plurality of being connected of one of them measurement chamber, the difference one-to-one is located respectively in the liquid layer is annotated. Therefore, the liquid injection module has the advantages that the arrangement of the metering layer is reduced, the system structure is simplified, the cost is reduced, the height is reduced, and the maintenance is facilitated.

Optionally, a plurality of the liquid injection layers are arranged up and down.

Optionally, a plurality of the liquid injection layers are arranged side by side in the same layer.

Optionally, a plurality of the injection cavities are annularly arranged.

Optionally, a plurality of the liquid injection cavities are arranged in a straight line.

Optionally, the liquid injection module further comprises: the flow dividing assembly is provided with a flow dividing liquid inlet and a plurality of flow dividing liquid outlets, and the flow dividing liquid inlet is connected with the metering liquid outlets; the liquid injection cavities in one-to-one correspondence with the different liquid injection layers are respectively connected with the plurality of split-flow liquid outlets of the same split-flow assembly in one-to-one correspondence.

Optionally, the flow diversion assembly comprises: a switching valve having a liquid inlet and a liquid outlet; a first pipeline, one end of which is connected with the metering liquid outlet and the other end of which is connected with the liquid inlet; a plurality of second tubes, one end of the second tubes being connected to the liquid outflow port; and the other end of the second pipeline is connected with the liquid injection cavity.

Optionally, the liquid injection layer comprises: a first container; the liquid filling cavities are respectively arranged in the first container, each liquid filling cavity is provided with a liquid filling opening, and the metering layer fills liquid into the corresponding liquid filling cavity through the liquid filling opening.

Optionally, the metering layer comprises: a second container; and the plurality of quantitative cups are arranged in the second container, and each quantitative cup forms the metering cavity.

Therefore, the to-be-solved technical problem of the utility model lies in overcoming every measurement layer that exists among the prior art and annotating the liquid module of annotating that the liquid formed for a notes liquid layer alone and lead to the system complicated, is unfavorable for the technical defect of maintenance to a lithium cell liquid injection machine that the system is simple, highly low is favorable to the maintenance is provided.

In order to solve the above problem, the utility model provides a lithium battery liquid injection machine, include: any one of the liquid injection modules; a lithium battery pack including a plurality of lithium batteries; the liquid injection cavity of the liquid injection module is arranged in the lithium battery.

The application provides a lithium battery liquid injection machine, owing to contained the notes liquid module in the arbitrary item for this lithium battery liquid injection machine has the beneficial effect of annotating the liquid module, no longer gives unnecessary details here.

The utility model has the advantages of it is following:

1. two or more liquid injection layers are injected through one metering layer, so that the structure can be simplified, the cost is reduced, the height is reduced, and the maintenance is facilitated;

2. the multiple liquid injection layers can be arranged in an up-and-down overlapped mode or in a horizontal mode, and the height of the liquid injection module can be reduced;

3. through carrying out the hoop to annotate the liquid chamber to annotate a plurality of liquid layers and laying or the straight line is laid, improved the adaptability to the environment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a prior art priming system;

fig. 2 is a schematic front view of a liquid injection module according to an embodiment of the present invention;

fig. 3 is a schematic front view of a liquid injection module according to another embodiment of the present invention;

fig. 4 is a schematic view of the layout of the liquid injection cavities of the liquid injection module in an embodiment of the present invention;

fig. 5 is a schematic view illustrating the layout of the injection chamber of the injection module according to another embodiment of the present invention.

Description of reference numerals:

100", existing priming systems; 100. a liquid injection module; 110. injecting a liquid layer; 111. a first container; 1101. a liquid injection chamber; 120. a metering layer; 121. a second container; 1201. metering a liquid outlet; 130. a flow diversion assembly; 131. an on-off valve; 133. a first pipeline; 135. a second pipeline; 200. a lithium battery.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Exemplary liquid injection module

Fig. 2 is a schematic front view of an injection module according to an embodiment of the present invention, in this embodiment, the injection module 100 includes: measurement layer 120 and a plurality of notes liquid layer 110, every notes liquid layer 110 all are equipped with a plurality of notes liquid chamber 1101, and measurement layer 120 is equipped with a plurality of measurement chambeies, and every measurement chamber is equipped with measurement liquid outlet 1201, and every measurement liquid outlet 1201 is connected with a notes liquid chamber 1101 of the notes liquid layer 110 of difference to annotate liquid to the notes liquid chamber 1101 that annotates that corresponds.

The metering layer 120 measures the injected liquid through the metering chamber, wherein the injected liquid may be an electrolyte. The number of the plurality of liquid injection chambers 1101 in each liquid injection layer 110 corresponds one-to-one to the number of the plurality of metering chambers 120, so that each metering chamber can inject liquid for a corresponding one of the liquid injection chambers 1101 of each liquid injection layer 110. When the liquid injection layers 110 are provided in plurality, each metering chamber may inject liquid into a corresponding one of the liquid injection chambers 1101 of the liquid injection layers 110, that is, the liquid injection chambers 1101 connected to one of the metering chambers are respectively provided in the different liquid injection layers 110 in a one-to-one correspondence. Therefore, the liquid injection module has the advantages that the arrangement of the metering layer 120 is reduced, the system structure is simplified, the cost is reduced, the height is reduced, and the maintenance is facilitated.

Further, as shown in fig. 2, a plurality of liquid injection layers 110 are arranged up and down.

The liquid injection layers 110 are stacked in the height direction to be arranged up and down, so that the supporting frame of the liquid injection module in the prior art can be used, only one layer is left, the existing equipment can be fully utilized, and the cost can be further reduced.

Further, as shown in fig. 3, a plurality of liquid-injection layers 110 are arranged side by side in the same layer.

The plurality of liquid injection layers 110 can also be arranged side by side in the horizontal direction, so that the overall height of the liquid injection module can be further reduced, and the maintenance is facilitated. In addition, the whole height of the liquid injection module is reduced, so that liquid injection is more favorably realized.

Further, as shown in FIG. 4, a plurality of infusion chambers 1101 are arranged circumferentially.

The plurality of liquid injection cavities 1101 are arranged at intervals and are annular, so that the occupied space can be saved.

Further, as shown in FIG. 5, a plurality of the liquid injection chambers 1101 are arranged linearly.

The plurality of infusion chambers 1101 can also be arranged in a plurality of lines in a straight line, so as to be suitable for implementing infusion in a long and narrow space or in a case that the space is not large.

Further, as shown in fig. 2 and 3, the liquid injection module further includes: the flow distribution assembly 130, the flow distribution assembly 130 has a flow distribution inlet and a plurality of flow distribution outlets, the flow distribution inlet is connected to the metering outlet 1201, wherein the liquid injection cavities 1101 of different liquid injection layers 110 are respectively connected to a plurality of flow distribution outlets of the same flow distribution assembly 130 in a one-to-one correspondence.

The shunting assembly 130 is used for shunting the electrolyte flowing out of the metering liquid outlet 1201, and the number of shunting corresponds to the number of the liquid injection layers 110 one by one. The shunting assembly 130 is used for shunting, so that the aim of accurate liquid injection can be further fulfilled.

Further, as shown in continuing reference to fig. 2 and 3, the flow diversion assembly 130 includes: the on-off valve 131 includes a liquid inlet port and a liquid outlet port, the on-off valve 131 includes the first conduit 133, one end of the first conduit 133 is connected to the measured liquid outlet port 1201, the other end of the first conduit 133 is connected to the liquid inlet port, one end of the second conduit 135 is connected to the liquid outlet port, and the other end of the second conduit 135 is connected to the liquid storage chamber 1101.

The switch valve 131 may be an electromagnetic valve, and the liquid injection may be controlled more precisely by the switch valve 131. The first pipeline 133 and the second pipeline 135 both perform a flow guiding function on the injection liquid. The second pipeline 135 is a shunt pipeline, the tail end of the second pipeline 135 is connected with the liquid injection port of the liquid injection cavity 1101, and electrolyte can be injected into the liquid injection cavity 1101 through the liquid injection port. Each flow distribution assembly 130 is connected with one metering chamber and one liquid injection chamber 1101 to realize one-to-one liquid injection and facilitate independent control.

Further, as shown in continuing reference to fig. 2 and 3, liquid-injection layer 110 includes: the first container 111, wherein a plurality of liquid injection cavities 1101 are respectively arranged in the first container 111, each liquid injection cavity 1101 is provided with a liquid injection port, and the metering layer 120 injects liquid into the corresponding liquid injection cavity 1101 through the liquid injection ports.

The first container 111 may be a closed container, a plurality of liquid injection chambers 1101 are arranged in the first container 111, and the plurality of liquid injection chambers 1101 correspond to the plurality of metering chambers one to one, so that the liquid injection efficiency can be improved. In this case, the first container 111 can be evacuated to further improve the filling efficiency.

Further, as shown in continuing reference to fig. 2 and 3, metering layer 120 includes: the second container 121 and a plurality of dosing cups, the plurality of dosing cups are respectively arranged in the second container 121, and each dosing cup forms a dosing cavity.

The second container 121 may be a closed container, a plurality of dosing cups are disposed in the second container 121, a dosing cavity is formed in each dosing cup, and the dosing cup can be used for injecting liquid quantitatively. Similarly, the second container 121 may be evacuated to further improve the filling efficiency. Wherein, first container 111 and second container 121 can realize the vacuum environment through the same system of drawing the vacuum, through drawing out the air with annotating in liquid chamber 1101 and the first container 111, make annotate liquid chamber 1101 and the measurement chamber all form the negative pressure, do benefit to annotating the air discharge in liquid chamber 1101 and the measurement chamber, the negative pressure is also convenient for annotate the liquid to second container 121 and annotate the liquid chamber 1101 simultaneously to can further improve and annotate the liquid efficiency.

The accessible annotates the mode of liquid excessively, pours into the electrolyte into foretell second container 121 into, and in the electrolyte flowed into the measuring cup, when electrolyte did not cross the measuring cup, after the measuring cup filled up electrolyte promptly, discharged the electrolyte that is more than in the second container 121, can realize the ration calculation of measuring cup to the realization is to annotating the liquid chamber. Adopt quantitative cup structure, guarantee through the quantitative cup that the electrolyte volume of pouring into the battery is unanimous, adopt excessive formula to annotate liquid, can guarantee that the electrolyte in every quantitative cup is full, and the volume of the electrolyte in every quantitative cup is unanimous, that is, the electrolyte of pouring into every lithium cell is unanimous, and simple structure easily realizes.

Exemplary lithium battery liquid injection machine

A lithium battery liquid filling machine comprises: the liquid injection module 100 and the lithium battery pack of any one of the above embodiments include a plurality of lithium batteries 200, wherein the liquid injection chamber 1101 of the liquid injection module 100 is provided in the lithium batteries 200.

The liquid injection layer 110 of the liquid injection module 100 includes a first container 111, and the first container 111 is a sealed container. The first container 111 may include an upper cavity and a lower cavity, and specifically, the first container 111 includes the upper cavity and the lower cavity, the lower cavity is provided with a plurality of lithium batteries 200, and the lower cavity and the upper cavity may cooperate to form a sealed first container. Set up first container 111 into die cavity and last die cavity complex form down, be convenient for placing and taking out of a plurality of lithium batteries 200, after lithium battery 200 put into die cavity down, the die cavity rises down and forms inclosed first container with last die cavity butt cooperation, annotates liquid when accomplishing when needing to take out when lithium battery 200, and lower die cavity descends and goes up the die cavity separation, take out down the lithium battery 200 of die cavity can.

The liquid injection module 100 further includes a pressure relief pipeline, and the pressure relief pipeline is communicated with the first container 111. Annotate liquid chamber 1101 and annotating the liquid back of accomplishing, the pressure release pipeline can carry out the pressure release to first container 111, makes the inner chamber of first container 111 resume to ambient pressure, is convenient for go up the separation of die cavity and lower die cavity to take out lithium cell 200 in the first container 111. Wherein, the pressure relief pipeline can be communicated with the upper cavity.

Specifically, the liquid injection module 100 further includes: the pressurizing system adopts compressed air for pressurizing, can accelerate the speed that electrolyte flows out the ration cup, and can guarantee that electrolyte can all flow out from the ration cup in to can further guarantee the uniformity of annotating liquid of every lithium cell 200, and improve the notes liquid efficiency of lithium cell 200.

The liquid injection module 100 combines and simplifies the metering layers 120, so that the same metering layer 120 corresponds to a plurality of liquid injection layers 110, and the plurality of liquid injection layers 110 can work simultaneously or intermittently.

The working process of the liquid injection module 100 is as follows: 1. jacking up the lithium battery 200 through a jacking mechanism to enable the liquid injection cavity 1101 to be combined with a liquid injection nozzle arranged at the tail end of the second pipeline 135; 2. the circulating liquid supply system injects electrolyte into the quantitative cups, and saturated liquid injection ensures that the quantitative cups are filled with the electrolyte and the volumes of the quantitative cups are consistent; 3. closing the liquid inlet/outlet valve; 4. opening a vacuumizing pipeline valve, vacuumizing the first container 111 and the second container 121 to enable the interior of the lithium battery 200 to be in a vacuum state, and detecting whether the joints of all parts are sealed or not through vacuum leakage; 5. opening the switch valve 131, at this time, the electrolyte enters the liquid injection cavity 1101 of the lithium battery 200 through negative pressure, and simultaneously opening the compressed air valve of the quantitative cup, so as to accelerate the electrolyte to flow into the liquid injection cavity 1101 by applying positive pressure to the quantitative cup; 6. after the liquid injection is completed, the lithium battery 200 enters a standing state.

According to the above description, the present application has the following advantages:

1. the liquid injection layers 110 are injected with two or more liquid injection layers through one metering layer 120, so that the structure can be simplified, the cost is reduced, the height is reduced, and the maintenance is facilitated.

2. The plurality of liquid injection layers 110 may be arranged in an up-and-down overlapping manner, or may be arranged horizontally, and the height of the liquid injection module 100 may be reduced.

3. By annularly arranging or linearly arranging the plurality of liquid injection cavities 1101 of the liquid injection layer 110, the adaptability to the environment is improved.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Furthermore, the technical features mentioned 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.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (10)

1. The utility model provides an annotate liquid module which characterized in that includes:

the liquid injection device comprises a plurality of liquid injection layers (110), wherein each liquid injection layer (110) is provided with a plurality of liquid injection cavities (1101);

the metering layer (120) is provided with a plurality of metering cavities, each metering cavity is provided with a metering liquid outlet (1201), each metering liquid outlet (1201) is connected with one of the liquid injection layers (110) which are different, and the liquid injection cavity (1101) is used for injecting liquid into the corresponding liquid injection cavity (1101).

2. The priming module of claim 1, wherein a plurality of said priming layers (110) are arranged one above the other.

3. The liquid injection module according to claim 1, wherein the plurality of liquid injection layers (110) are arranged side by side in the same layer.

4. The liquid injection module according to claim 1, wherein a plurality of the liquid injection cavities (1101) are annularly arranged.

5. The infusion module of claim 1, wherein the plurality of infusion chambers (1101) are arranged in a straight line.

6. The injection module of any one of claims 1 to 5, further comprising:

a flow splitting assembly (130) having a flow splitting inlet and a plurality of flow splitting outlets, the flow splitting inlet being connected to the metering outlet (1201);

the liquid injection cavities (1101) corresponding to the different liquid injection layers (110) one to one are respectively connected with the plurality of flow dividing liquid outlets of the same flow dividing assembly (130) one to one.

7. The injection module of claim 6, wherein the flow diversion assembly (130) comprises:

an on-off valve (131) having a liquid inlet and a liquid outlet;

a first pipe (133) having one end connected to the measured liquid outlet (1201) and the other end of the first pipe (133) connected to the liquid inlet;

a plurality of second pipes (135), one end of the second pipes (135) being connected to the liquid outflow port;

wherein the other end of the second pipeline (135) is connected with the liquid injection cavity (1101).

8. Injection module according to claim 6, wherein the injection layer (110) comprises:

a first container (111);

the liquid injection cavities (1101) are respectively arranged in the first container (111), each liquid injection cavity (1101) is provided with a liquid injection port, and the metering layer (120) injects liquid into the corresponding liquid injection cavity (1101) through the liquid injection ports.

9. The priming module of claim 6, wherein the metering layer (120) comprises:

a second container (121);

a plurality of dosing cups arranged in the second container (121), each dosing cup forming the dosing chamber.

10. A lithium battery liquid injection machine is characterized by comprising:

the injection module (100) of any of claims 1 to 9;

a lithium battery pack comprising a plurality of lithium batteries (200);

the liquid injection cavity (1101) of the liquid injection module (100) is arranged in the lithium battery (200).

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