WO2019146984A1

WO2019146984A1 - Refrigerant distribution interface for battery module housing

Info

Publication number: WO2019146984A1
Application number: PCT/KR2019/000865
Authority: WO
Inventors: 레섹마티아스; 자프카어게르노트
Original assignee: 삼성에스디아이 주식회사
Priority date: 2018-01-23
Filing date: 2019-01-22
Publication date: 2019-08-01

Abstract

A refrigerant distribution interface for a battery system comprises: a battery module housing including a refrigerant channel, and at least one mounting portion located at an inlet of the refrigerant channel and including a first sealing portion and a second sealing portion; a matching housing including a matching refrigerant channel, and at least one matching mount located at an inlet of the matching refrigerant channel and including a first matching sealing portion and a second matching sealing portion; a joint refrigerant channel formed by connecting the refrigerant channel of the mounting portion and the matching refrigerant channel of the matching mounting portion; a common sealing member positioned between the second sealing portion and the second matching sealing portion; a channel sealing member sealing the first sealing portion and the first matching sealing portion to the joint refrigerant channel; a security chamber constituted by the mounting portion, the matching mounting portion, the common sealing member, and the channel sealing member; and an inspection channel passing through at least one of the battery module housing and the matching housing to connect the security chamber to the outside of the battery module housing and the matching housing.

Description

Refrigerant distribution interface for battery module housing

The present invention relates to a refrigerant distribution interface for connecting a cooling unit to a battery module housing, a battery system having the refrigerant distribution interface, an automobile having the battery system, and a leak-tightness inspection method of a refrigerant distribution interface.

A secondary cell differs from a primary cell in that it can only convert chemical energy into electrical energy in that it can be repeatedly charged and discharged. BACKGROUND ART Low-capacity secondary batteries are used for power supply of small electronic devices such as mobile phones, notebooks, computers, and camcorders, and high-capacity secondary batteries are used for power supplies such as hybrid vehicles.

The secondary battery may be used as a battery module formed of a plurality of unit battery cells connected in series and / or in parallel so as to provide a high energy density (for example, for driving a motor of a hybrid vehicle). That is, the battery module is formed by connecting electrode terminals of a plurality of unit cells to each other in order to realize a high output secondary battery of an electric vehicle, for example, in accordance with a required amount of electric power.

There is provided a heat management system for safely using at least one battery module by efficiently discharging, discharging, and / or dispersing heat generated from a secondary battery for thermal control of the battery system. There is a temperature deviation between the respective battery cells, so that at least one of the battery modules can not generate a desired amount of electric power. In addition, an increase in the internal temperature of the battery cell induces an abnormal reaction occurring inside the battery cell, deteriorating the charging and discharging performance of the secondary battery, and shortening the service life of the secondary battery. Accordingly, there is a demand for a cooling device for effectively discharging / discharging / dispersing heat generated from a battery cell.

The thermal management system generally includes a closed cooling circuit, a means for pumping the cooling medium through the cooling circuit, a thermal management system typically comprising a closed cooling circuit, means for pumping the cooling medium through the cooling circuit, In particular, an adjusting means for controlling cooling or heating of the battery module. The cooling circuit may include components such as a distributor, connector, cooling channel or cooling tube stacked together during the manufacturing process of the battery system. Preferably, the cooling circuit may be partially formed directly in the battery module housing. However, liquid cooling media such as water or alkanols can conduct electricity or initiate a corrosion process, and there is a high risk of leakage when reacting with the compound of the battery cell inside the battery module housing.

However, the known technology solution poses a problem from having a substantial number of interfaces to the cooling circuit. In addition, there is a problem that leakage airtightness of a known cooling circuit must be confirmed after a leak is detected.

It is an object of the present invention to provide an improved refrigerant distribution interface of a battery system that is capable of proactive identification of the sealing function and at the same time reducing the number of sealing points required.

The above object is achieved by the contents of the

independent claims

1, 11, 13 and 15. Further, another aspect of the present invention can be known from the dependent claims or from the following description.

A first aspect of the present invention provides a battery module comprising a battery module housing including at least one coolant channel and at least one mounting portion located at an inlet of the coolant channel, the coolant channel including a first seal portion and a second seal portion, A matching housing including a first and a second matching seal and at least one matching mount located at an inlet of the matching refrigerant channel; and a joint configured to connect the refrigerant channel of the mounting and the matching refrigerant channel of the matching mount A seal sealing member positioned between the second sealing portion and the second matching sealing portion; a channel sealing member sealing the first sealing portion and the first matching sealing portion to the joint refrigerant channel; A security chamber formed by the mounting portion, the matching mounting portion, the common sealing member, and the channel sealing member, Relates to ranging and the matching of the housing at least one through-formed in said chamber to secure the battery module housing and the refrigerant matching for a battery system including a test channel that connects to the outside of the housing dispensing interface.

In other words, the refrigerant distribution interface provides an internal seal facing the refrigerant line with the refrigerant line formed by the two housings connected at the sealing point, thereby ensuring leak-tightness of the sealing point. One housing is preferably a battery module housing and the other housing is a housing of a cooling unit, although other technical systems may be connected to the battery housing to provide a matching (or complementary) housing. For example, the matching housing may belong to other battery modules. The inner seal is located inside the refrigerant line and tightly contacts the two housings to cover the sealing point. A support seal is disposed between the inner seal and the two housings. The support seal, the space between the two housings and the inner seal forms a cavity.

If the internal seal malfunctions, the refrigerant may enter the cavity. Here, the support seal still prevents the refrigerant from escaping the sealing point. However, since defects in the inner sealing and the supporting sealing can not be confirmed outside the housing, they can hardly be detected during the quality inspection. This is because when the lifetime of the support seal is over, the refrigerant can be discharged from the sealing point and enter the battery module housing.

The refrigerant distribution interface of the present invention solves this problem by providing an inspection channel that is provided from the exterior of the housing to the cavity through the housing, which means the location of the quality inspection. When the end of the internal seal has expired and the refrigerant enters the cavity, the refrigerant can be detected from outside by applying the test device through the test channel. Therefore, the refrigerant can be detected before it affects the support seal. It is also possible to discharge the refrigerant through the inspection channel. The internal seal may be inspected in conjunction with the quantitative seal effect by applying a lower test pressure to the test channel. Also, due to the inspection channel, the sealing member can be leak tested during over pressure and negative pressure inspection of the housing, and the channel sealing member can be leak checked during over pressure and negative pressure inspection of the cooling circuit.

This type of refrigerant distribution interface in accordance with the present invention reduces the number of required components by directly designing the sealing points in the battery module housing. In addition, the security of refrigerant leakage is very high. In addition, if the inspection channel is not used for inspection or discharge, it can be sealed with plugs, screw fasteners and the like.

The inspection channel may include a vertical portion extending from the security chamber and extending parallel to the joint refrigerant channel. When the refrigerant is collected in the security chamber, the refrigerant level can rise in this vertical portion. Advantageously, only the refrigerant can be prevented from entering too deep into the test channel due to the stop pressure. The geometry of the refrigerant channel can be designed by a conventional technician according to the fluid conditions in the joint refrigerant channel. Further, through other embodiments, the vertical portion may be left at a certain angle relative to the joint refrigerant channel.

The vertical portion may extend parallel to the joint refrigerant channel as long as it reaches at least the contact area between the channel sealing member and the first sealing or channel sealing member and the first matching sealing portion. Whereby the height level of the contact area and the top height of the vertical part are at least equal and are applied as the common reference height level. However, in other embodiments, the height levels may be set independently of each other.

The inspection channel may include a horizontal portion extending radially with respect to the joint refrigerant channel to the outside of each housing. That is, the inspection channel may have the same shape as the L character. In this way, the point for sealing inspection can be flexibly selected outside the housing.

Inspection channel threads may be provided to the ports through which the inspection channels reach the exterior of each housing. The thread allows a secure connection of the test device and the port. The inspection device may be permanently coupled to the port. For example, low pressure can be permanently applied to the test channel to immediately detect defects in the internal seal for the first time. The inspection device may also be a discharge device.

An inspecting channel sealing surface may be provided at the port through which the inspection channel reaches the exterior of each housing. The inspection channel sealing surface may be an area on the machined surface according to sealing requirements. Exhaust and inspection of the refrigerant can be improved in this way while avoiding leakage.

An O-ring may be applied as the most suitable seal-sealing member forming the security chamber. There may be other types of seals that the ordinary technician independently chooses. For example, an X ring or any form of seal ring or foam seal may be used.

The channel sealing member may be a sealing insert such as a collar. That is, the channel sealing member may be a tubular or pipe-like insert disposed within the joint refrigerant channel to seal the security chamber relative to the joint refrigerant channel. In another embodiment, an O-ring seal may be used in addition. In this way, the channel sealing member is very easy to assemble and ensures a secure position in the joint refrigerant channel. The assembly tolerance may be advantageously designed to be wide by the tubular seal insert compared to other sealing concepts (e.g., O-ring seals). If instead an O-ring is used, the tolerance must be tight.

The battery module housing may have at least two mounting portions that are an upper mounting portion and a lower mounting portion. This allows the division of the joint refrigerant channel to be advantageous and thus the refrigerant flows to other subcircuits to circulate around the wall of the battery module housing.

The upper mounting portion and the lower mounting portion are respectively located at the upper inlet and lower inlet of the joint refrigerant channel. The matching of the joint refrigerant channel in the battery module housing with the matching housing of the cooling unit is advantageously achieved by one clamping of the upper and lower mounting portions.

The second aspect of the present invention at least includes a battery module including a plurality of battery cells, a battery module housing and a cooling unit for housing the battery module, wherein the matching housing of the battery module housing and the cooling unit is a And an associated battery system connected by a refrigerant distribution interface.

A further preferred embodiment corresponds to the preferred embodiment of the refrigerant distribution interface of the present invention described above.

The battery system of the present invention includes a plurality of battery modules housed in a battery module housing to improve the electric capacity and tightly integrate a plurality of battery modules in one refrigerant circuit.

A third aspect of the invention includes a vehicle comprising the battery system of the present invention in accordance with the foregoing description.

A further preferred embodiment corresponds to the preferred embodiment of the refrigerant distribution interface and battery system of the present invention described above.

The upper mounting portion and the lower mounting portion of the battery module housing define an upper refrigerant level and a lower refrigerant level, and the joint refrigerant channel of the refrigerant distribution interface can extend vertically between the upper refrigerant channel and the lower refrigerant channel. According to this arrangement, the inspection channel for leakage inspection of the security chamber between the battery module housing and the matching housing can be easily adapted to different height levels.

A fourth aspect of the present invention is directed to a method of inspecting leak air tightness of a coolant distribution interface for a battery system, the coolant distribution interface comprising at least a coolant channel and a first seal and a second seal, A matching housing including a matching refrigerant channel and at least one matching mounting located at an inlet of the matching refrigerant channel, the matching housing including a first matching seal and a second matching seal, A joint coolant channel formed by connecting the coolant channel of the mounting portion and the matching coolant channel of the matching mount portion; a common seal member positioned between the second seal portion and the second matching seal portion; A channel sealing member for sealing the first and the second matching sealing portions to the joint refrigerant channel, And a security chamber constituted by the mounting portion, the sealing member, and the channel sealing member.

The method of the present invention is characterized in that an inspection channel connecting the security chamber to the outside of the battery module housing and the matching housing is formed through at least one of the battery module housing and the matching housing, To be provided in the leak tightness test line.

Due to the inspection channel, the sealing member can be inspected for leakage during the overpressure and the negative pressure inspection of the housing, and the channel sealing member can be inspected for leakage during overpressure and negative pressure inspection of the cooling circuit.

The negative pressure may refer to the difference in pressure exerted on the security chamber through the inspection channel and the external reference point of the security chamber with each sealing member for inspection purposes. For example, an inspection pressure may be supplied to the joint refrigerant channel from the outside of the housing, which is an over pressure or an under pressure, and a corresponding overpressure or insufficient pressure is applied to the outside of the housing, Line. &Lt; / RTI >

Test pressures may be applied to the joint coolant channels from the outside, which signify overpressure or underpressure, and corresponding overpressure or overpressure may be applied to the outer housing each to the leak-tightness test line.

As described above, the refrigerant distribution interface, the battery system, the vehicle, and the inspection method according to the present invention can be designed.

A leak test can refer to the discharge of refrigerant into the security chamber, which can be done with intermittent or permanent quality inspections. Through permanent inspection methods, low pressure can be permanently supplied by the inspection device attached to the inspection channel. The electronic data acquiring means may collect data transmitted by the testing device to immediately detect a leak occurring in one of the sealing members. Leaks can be detected through changes in the properties of the measured pressure values.

According to the refrigerant distribution interface of the present invention, it is possible to confirm the refrigerant completely before the refrigerant leaks.

The features of the present disclosure will become apparent to those skilled in the art from a detailed description of exemplary embodiments with reference to the accompanying drawings.

1 is a schematic perspective view of a battery system according to one embodiment of the present disclosure;

2 is a schematic cross-sectional view of a refrigerant distribution interface according to one embodiment of the present disclosure;

3 is a schematic cross-sectional view of the interface of a cooling water distribution interface according to another embodiment of the present disclosure;

4 is a view showing a vehicle according to an embodiment of the present invention.

5 is a block diagram of a method according to one embodiment of the present disclosure.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Hereinafter, effects and features according to embodiments of the present invention and an implementation method thereof will be described with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same elements, and redundant explanations are omitted. As used herein, the term "and / or" includes any and all combinations of one or more related listed items. Further, use of "can" when describing an embodiment of the present invention means "one or more embodiments of the present invention ".

In the drawings, the size of the components may be exaggerated for clarity. For example, the size or thickness of each component in the figures may be arbitrarily presented for purposes of illustration. Therefore, the embodiment of the present invention should not be construed as being limited thereto.

The terms "first" and "second" are used to describe various components, but these components are not limited by these terms. This term is used only to distinguish one component from another. For example, the first component may be referred to as a second component, and likewise, the second component may be named as the first component to the extent that it does not depart from the scope of the present invention.

In the following description of embodiments of the present invention, the singular terms may include plural forms unless the context clearly dictates otherwise.

The use of the terms "comprise", "comprise", "including", or "comprising" is intended to encompass any and all of the features, regions, fixed numbers, steps, Processes, components, and combinations thereof.

Also, when referring to a film, region or component being "on" or "on" another film, region or component, it may be provided directly on another film, region or component, Regions or components may exist intervening.

Here, the terms "upper" and "lower" are defined along the z-axis. For example, the top cover is located at the top of the z-axis, and the bottom cover is located at the bottom of the z-axis.

The features of the concepts of the present invention and the method of achieving them can be more readily understood with reference to the following embodiments and the detailed description of the accompanying drawings. However, the invention can be embodied in various forms and should not be construed as being limited to the embodiments shown. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope and spirit of the invention to those skilled in the art. Thus, unnecessary processes, elements, and techniques may not be described to those skilled in the art for a complete understanding of aspects and features of the present invention.

Spatial representations such as "under", "under", "under", "above", "above", "above" . On the other hand, since the components may have different orientations or be arranged in various spaces depending on the use or operation of the apparatus, the spatial representation is not necessarily limited by the illustrated aspects of the present invention. For example, if the orientation of the device shown in the figures is reversed, one component described as "below", "below", or "below" may be referred to as being "above" Quot ;, " on ", " on " Thus, expressions such as " below " and " above " may include both upward and downward directions. Further, it should be interpreted that the device is arranged in various directions such as being rotated 90 degrees or another direction.

Unless stated otherwise, all terms including technical and scientific terms used are synonymous with what is commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used dictionary terms and the like should be interpreted in a meaning consistent with the context of the related art, and should not be interpreted as an ideal or overly formal meaning unless expressly defined.

1 is a schematic perspective view of a battery system 10 in accordance with one embodiment. The battery system 10 includes a plurality of battery modules 12. Each of the battery modules 12 includes a plurality of battery cells 13. The battery module 12 can be positioned in the battery module housing 14 having the accommodation space 15 and assembled into the battery module housing 14. [

The battery module housing (14) includes one or more refrigerant channels (16). The refrigerant channel 16 may be constituted by a part of the battery module housing 14 or a separate member (for example, a duct) provided in the battery module housing. In this embodiment, the refrigerant channel 16 is provided in a part of the battery module housing 14 arranged in a protruding structure outside the bottom portion of the battery module housing 14, but the present invention is not necessarily limited thereto. The refrigerant channel 16 may be connected to the matching refrigerant channel 18 via the refrigerant distribution interface 20, as shown in FIG. 2, so that the refrigerant can flow. The matching refrigerant channel 18 is included in the cooling unit 22 schematically shown in Figs.

The cooling unit 22 supplies the refrigerant to a cooling circuit made with the battery module housing 14.

2 is a schematic cross-sectional view of a refrigerant distribution interface 20 in accordance with the preceding description. As shown, the battery module housing 14 is connected to the matching housing 24 of the cooling unit 22. The combination of the battery module housing 14 and the matching housing 24 is made by the mounting portion 26 of the battery module housing and the matching mounting portion 28 of the matching housing 24 of the cooling unit 22. Assembly of the mounting portion 26 and the matching mounting portion 28 can be performed, for example, by screwing.

When the mounting portion 26 and the matching mounting portion 28 are connected, the refrigerant channel 16 and the matching refrigerant channel 18 form the joint refrigerant channel 30, which is the same as the hydrodynamic diameter of the refrigerant channel 16, Means that the hydrodynamic diameter of the channel 18 is connected and the joint refrigerant channel 30 allows the refrigerant to circulate.

2 shows the joint refrigerant channel 30 being sealed by the channel sealing member 32. As shown in Fig. For example, a channel sealing member 32 of a sealing insert, such as a collar, is disposed in the joint refrigerant channel 30. The mounting portion 26 and the matching mounting portion 28 each include a first sealing portion 34 and a first matching sealing portion 36 which are sealing portions abutting the channel sealing member 32. The channel sealing member 32 is in contact with the

seal region

34 and 36 relative to the joint refrigerant channel 30 by contacting the contact region 38 created between the battery module housing 14 and the matching housing 24, .

A security chamber 40 limited by the sealing member 42 is formed between the channel sealing member 32 and the contact area 38 more precisely between the mounting part 26 and the matching mounting part 28. [ The sealing sealing member 42 is arranged between the mounting portion 26 and the matching mounting portion 28. The security chamber 40 is limited by the contact of the second sealing portion 44 provided by the battery module housing 14 and the second matching sealing portion 46 provided by the matching housing 24.

If the channel sealing member 32 is not adequately sealed in the contact area 38, the refrigerant may enter the security chamber 40, for example, the sealing member 42, which is the O-ring illustrated in this embodiment, So that the battery module can be prevented from entering the battery module housing 14. On the other hand, the sealing member 42 also has a limited lifetime.

To ensure leak tightness of the seal member 42, the present invention provides an inspection channel 48. In the illustrated embodiment, the inspection channel 48 is formed through the matching housing 24 so that the security chamber 40 is connected to the outside 50 of the matching housing 24. It can be seen at any time from the outside 50 through the inspection channel 48 that the inspection of the security chamber 40 with respect to the refrigerant accumulation 52 shows that the channel sealing member 32 does not operate properly. If necessary, the refrigerant can be discharged from the security chamber 40 through the inspection channel 48.

The vertical portion 54 is designed such that the refrigerant accumulation 52 is appropriately collected in the inspection channel 48. The vertical portion 54 extends vertically to the security chamber 40. The vertical portion 54 may be designed to lie parallel to the joint refrigerant channel 30 from the security chamber 40 to the height point H of the contact region 38. The refrigerant accumulation 52 may add a hydrostatic pressure on the security chamber 40 against the hydrostatic pressure caused by the refrigerant leaking from the contact area 38 to the security chamber 40. [

The horizontal portion 56 of the inspection channel 48 at the elevation point H extends horizontally radially relative to the joint refrigerant channel 30 to reach the exterior 50. [

Port 58 and inspection channel thread 60 may be provided at points where inspection channel 48 is external to the exterior. Here, the inspection or drainage device can be applied or the screw cap can be fixed, which allows the inspection channel 48 to be protected. In order to ensure the safe application of the device described above, an inspection channel sealing surface 62 is provided in the port 58.

3 is a perspective view schematically illustrating a refrigerant distribution interface according to another embodiment of the present disclosure with reference to the above description. As shown, a plurality of refrigerant distribution interfaces 20 of the type shown in FIG. 2 may be provided in the battery system 10. 3 is centered on the design of the battery module housing 14, the matching housing 24 shown in FIG. 2 is not shown.

As shown, the battery module housing 14 has four mounting portions 26. Here, the two mounting portions 26 are the upper mounting portion 64 and the two mounting portions 26 are the lower mounting portions 66. [ A matching housing (not shown) may be assembled to each of the upper mounting portions 64 and each lower mounting portion 66. The joint refrigerant channel 30 may be formed in the lower mounting portion 66 having the upper mounting portion 64 having the upper inlet 68 and the lower inlet 70. In the embodiment of FIG. 3, these joint refrigerant channels 30 may be provided in two.

Further, as shown, the inspection channel 48 is provided by the battery module housing 14. In one example, the inspection channel 48 may be provided in the upper mounting portion 64 with a vertical portion 54 extending downwardly from the security chamber for rapid release of the refrigerant.

4 shows a vehicle 72 according to an embodiment with reference to the above description. The vehicle 72 has a battery system 10. The joint refrigerant channel (30) of the refrigerant distribution interface (20) extends in the vertical direction (z). The upper mounting portion 64 and the lower mounting portion 66 of the battery module housing 14 define an upper refrigerant level UL and a lower refrigerant level LL and the joint refrigerant channel 30 defines upper and lower refrigerant levels (UL, LL).

5 illustrates a block diagram of a method for inspecting the leak tightness of a refrigerant distribution interface 20 for a battery system 10, according to one embodiment, with reference to the foregoing description.

A battery system 10 including a battery module 12 including a plurality of battery cells and further including a battery module housing 14 for receiving the battery module 12 is provided. In addition, a cooling unit 14 is provided which is connected to the battery module housing 14 so that the refrigerant can flow.

Thus, using the battery module housing 14, the coolant distribution interface 20 is provided in the mount 26 located at the inlet of the coolant channel 16 made by the battery module housing 14. Here, the mounting portion 26 includes a first sealing portion 34 and a second sealing portion 44.

The matching housing 24 is constituted by a cooling unit 22 comprising a matching mounting portion 28 disposed at the inlet of the matching refrigerant channel 18 made by this matching housing 24. Here, the matching mount 28 includes a first matching seal 36 and a second matching seal 46.

The mounting portion 26 and the matching mounting portion 28 are coupled to each other. As a result, the refrigerant channel 16 and the matching refrigerant channel 18 are connected to each other to form the joint refrigerant channel 30.

A sealing seal member 42 is positioned between the second sealing portion 44 and the second matching sealing portion 46 and each first sealing portion 34 and the first matching sealing portion 36 are disposed between the channel sealing member 32 to seal the joint refrigerant channel 30. The security chamber 40 is formed by a mounting portion 26 matching mounting portion 28, a sealing sealing member 42 and a channel sealing member 32.

The inspection channel 48 penetrates the matching housing 24 and connects the security chamber 40 to the outside 50 of the matching housing 24. The security chamber 40 is shown in FIG.

In the second step, the refrigerant delivered by the cooling unit 22 is driven through the joint refrigerant channel 30.

In a third step, which may proceed after the second step or in parallel with the second step, a leak tightness test line is applied to the test channel 48 from the outside 50 and a negative pressure is applied to the leak tightness test line. The refrigerant can be discharged based on the negative pressure and the airtightness of the channel sealing member 32 can be inspected.

Alternatively, in the second step, the air delivered by the external testing device is driven through the joint refrigerant channel 30. [ If the channel sealing member 32 is not tightly tightened, air will flow outward through the inspection channel 48 and no pressure can be produced. In the third step, the air is driven through the matching housing 24 by the air delivered by the external inspection apparatus. If the sealing seal member 42 is not rigid, air will flow outward through the inspection channel 48 and no pressure can be formed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

[Description of Symbols]

10: battery system 14: battery module housing 16: refrigerant channel

18: matching refrigerant channel 20: refrigerant distribution interface 24: matching housing

26: mounting portion 28: matching mounting portion 30: joint refrigerant channel

32: channel sealing member 34: first sealing portion 36: first matching sealing portion

40: Secure channel 42: Shroud sealing member 48: Inspection channel 50: External

Claims

A battery module housing including a refrigerant channel and at least one mounting portion including a first sealing portion and a second sealing portion and located at an inlet of the refrigerant channel;

A matching housing including a matching refrigerant channel and a first matching seal and a second matching seal and at least one matching mount located at an inlet of the matching refrigerant channel;

A joint refrigerant channel formed by connecting the refrigerant channel of the mounting portion and the matching refrigerant channel of the matching mounting portion;

A sealing member positioned between the second sealing portion and the second matching sealing portion;

A channel sealing member sealing the first sealing portion and the first matching sealing portion to the joint refrigerant channel;

A security chamber constituted by the mounting portion, the matching mounting portion, the common sealing member, and the channel sealing member; And

The battery module according to claim 1, further comprising: a battery module housing (100) having a battery module housing (100) and a matching housing

The refrigerant distribution interface for the battery system.
The method according to claim 1,

Wherein the inspection channel includes a vertical portion extending from the security chamber in parallel with the joint refrigerant channel.
3. The method of claim 2,

Wherein the vertical portion is parallel to the joint refrigerant channel so as to reach a contact area between the channel sealing member and the first sealing portion or between the channel sealing member and the second sealing portion.
The method according to claim 1,

Wherein the inspection channel includes a horizontal portion extending radially outwardly of the battery module housing and the matching housing with respect to the joint refrigerant channel.
The method according to claim 1,

Further comprising an inspection channel thread provided at a port of the inspection channel leading to the exterior of the battery module housing and the matching housing.
The method according to claim 1,

Further comprising an inspection channel sealing surface provided in the port of the inspection channel leading to the exterior of the battery module housing and the matching housing.
The method according to claim 1,

Wherein the sealing member is an O-ring.
The method according to claim 1,

Wherein the channel sealing member is a color seal insert.
The method according to claim 1,

Wherein the battery module housing comprises at least two mounting portions, an upper mounting portion and a lower mounting portion.
10. The method of claim 9,

Wherein the upper mounting portion and the lower mounting portion are each disposed at an upper inlet and a lower inlet of the joint refrigerant channel.
A battery module including a plurality of battery cells;

A battery module housing accommodating the battery module; And

Cooling unit

/ RTI >

Wherein the housing of the battery module housing and the matching unit of the cooling unit are connected by a refrigerant distribution interface according to any one of claims 1 to 10.
12. The method of claim 11,

Wherein the plurality of battery modules are accommodated in the battery module housing.
12. A vehicle comprising the battery system of claim 11.
14. The method of claim 13,

Wherein the upper mounting portion and the lower mounting portion of the battery module housing define an upper refrigerant level and a lower refrigerant level, and the joint refrigerant channel of the refrigerant distribution interface extends vertically between the upper refrigerant channel and the lower refrigerant channel.
A battery module housing including a refrigerant channel and at least one mounting portion including a first sealing portion and a second sealing portion and located at an inlet of the refrigerant channel; A matching housing including a matching refrigerant channel and a first matching seal and a second matching seal and at least one matching mount located at an inlet of the matching refrigerant channel; A joint refrigerant channel formed by connecting the refrigerant channel of the mounting portion and the matching refrigerant channel of the matching mounting portion; A sealing member positioned between the second sealing portion and the second matching sealing portion; A channel sealing member sealing the first sealing portion and the first matching sealing portion to the joint refrigerant channel; A security chamber constituted by the mounting portion, the matching mounting portion, the common sealing member, and the channel sealing member; And a check channel formed through at least one of the battery module housing and the matching housing to connect the security chamber to the outside of the battery module housing and the matching housing, As a result,

Wherein a leak tightness test line is provided to the inspection channel from the outside such that a negative pressure is applied to the leak tightness test line.