CN211513575U

CN211513575U - Deionizing filter for fuel cell

Info

Publication number: CN211513575U
Application number: CN201921756223.5U
Authority: CN
Inventors: 郑高照; 叶江德
Original assignee: Shenzhen Nanke Power Technology Co ltd
Current assignee: Shenzhen Nanke Power Technology Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-09-18
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a fuel cell uses ionic filter, including filter body and lid, filter body's centre is provided with the filter chamber of placing the filtering agent, sets up the opening that communicates to the filter chamber on filter body's the lateral wall, and the inner wall of lid is provided with the internal thread, and filter body's outer wall is provided with the external screw thread, internal thread and external screw thread threaded connection to make the lid close the opening, set up the runner that supplies water to flow on the lid, the runner communicates to the filter chamber through the opening. The water flow flows to the inside of the filter cavity through the flow passage, and the metal ions in the water flow are removed by the filtering agent in the filter cavity. The filtered deionized water in the filter cavity can also flow out through the flow passage, so that the deionized water can be used as cooling water or used for further preparing the cooling water. The detachable connection is realized between the cover body and the filter body through the matching of the external thread and the internal thread. After the cover body is screwed on the filter body, the cover body covers the opening, so that water flow cannot directly leak from the edge of the opening.

Description

Deionizing filter for fuel cell

[ technical field ] A method for producing a semiconductor device

The utility model relates to a fuel cell uses deionization filter belongs to the filter field.

[ background of the invention ]

The conductivity of the cooling water of the fuel cell is too high, so that the insulation performance of the system can not meet the actual working requirement. The cooling water is usually deionized water or a mixture of deionized water and ethylene glycol. Thus, a deionized water filter for preparing tap water or other state water as deionized water is used as one of the standard parts of a fuel cell vehicle. The inside filtering agent that needs to use of deionized water filter can become invalid gradually after long-term the use of filtering agent, because the whole structure that is non-detachable of the shell of ionized water filter, consequently in case after the filtering agent became invalid, can only scrap the whole processing of ionized water filter, lead to the cost to promote.

[ Utility model ] content

The utility model aims to solve the technical problem that overcome prior art not enough and provide a fuel cell that can change with the filtering agent uses the deionization filter.

Solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a fuel cell uses ionic filter, includes filter body and lid, and filter body's centre is provided with the filter chamber of placing the filtering agent, sets up the opening that communicates to the filter chamber on filter body's the lateral wall, and the inner wall of lid is provided with the internal thread, and filter body's outer wall is provided with the external screw thread, internal thread and external screw thread threaded connection to make lid close the opening, set up the runner that supplies water to flow on the lid, the runner communicates to the filter chamber through the opening.

The utility model has the advantages that:

the water flow flows to the inside of the filter cavity through the flow passage, and the metal ions in the water flow are removed by the filtering agent in the filter cavity. The filtered deionized water in the filter cavity can also flow out through the flow passage, so that the deionized water can be used as cooling water or used for further preparing the cooling water. The detachable connection is realized between the cover body and the filter body through the matching of the external thread and the internal thread. After the cover body is screwed on the filter body, the cover body covers the opening, so that water flow cannot directly leak from the edge of the opening. Because the cover body covers the filter body from outside to inside, water in the filter cavity cannot flow to the position where the inner thread and the outer thread are connected when flowing to the flow channel through the inner wall of the filter cavity, and corrosion of the inner thread and the outer thread is reduced. When the filtering agent is invalid, the filtering agent in the filtering cavity can be conveniently taken out from the opening for replacement by opening the cover body.

Opening quantity has two, and two openings are inlet opening and play water opening respectively, and lid quantity has two, and two lids are respectively for the lid of intaking and go out the water cover, and the runner that the lid of intaking was covered is the runner of intaking, goes out the runner that the water covered and is the runner of going out water, and the lid of intaking is at the inlet opening part, goes out the water cover lid at the outlet opening part.

Fuel cell is with ion filter still include with opening shape assorted filter screen, the inner wall protrusion of lid form with filter screen edge shape assorted location step, location step is fixed a position the filter screen on the lid.

The location step encloses the cavity that forms and runner intercommunication, and the cavity communicates to the filter chamber through the filter screen.

The cavity shape is cylindrical, and the runner communicates with the one end of cavity, and the filter screen is located the other end of cavity.

The one side of filter screen towards the runner forms the convex surface, the ascending length of cavity is 8-10mm in the axial.

Fuel cell still includes the sealing washer with ionic filter, and the sealing washer cover is in the edge of filter screen, and the location step is pressed the sealing washer on the lateral wall that filter body is located opening edge.

The aperture size of filter screen is less than 0.3mm, the filtering agent accounts for 85% -90% of the filter chamber volume.

The filtering agent of the utility model is deionized resin.

The lid is the pagoda lid, and the runner is located the pagoda joint of pagoda lid.

Other features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The invention will be further explained with reference to the drawings:

FIG. 1 is a schematic perspective view of a fuel cell deionization filter according to embodiment 1 of the present invention;

FIG. 2 is a schematic diagram showing an explosion structure of a deionizing filter for a fuel cell according to embodiment 1 of the present invention;

FIG. 3 is a schematic front view of a deionizing filter for a fuel cell according to embodiment 1 of the present invention;

FIG. 4 is a schematic sectional view taken along line A-A in FIG. 3;

fig. 5 is a schematic diagram of an explosion structure of a deionization filter for a fuel cell according to embodiment 2 of the present invention;

fig. 6 is a schematic sectional structure diagram of embodiment 2 of the present invention.

[ detailed description ] embodiments

The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

In the following description, the appearances of the indicating orientation or positional relationship, such as the terms "inner", "outer", "upper", "lower", "left", "right", etc., are only for convenience in describing the embodiments and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Example 1

Referring to fig. 1 to 4, the present embodiment provides a fuel cell deionization filter, which includes a filter body 1 and a cover.

The middle of the filter body 1 is provided with a filter cavity 2 for placing a filtering agent, the filtering agent can be generally deionized resin, and the filtering agent can be used for filtering metal ions of cooling water flowing into the filter cavity 2 after being placed in the filter cavity 2. The general filtering agent accounts for 85-90% of the volume of the filtering cavity 2, and water flow is facilitated on the basis of ensuring the filtering efficiency.

An opening communicated to the filter cavity 2 is formed in the side wall of the filter body 1. Generally speaking, the number of the openings is two, the two openings are a water inlet opening 3 and a water outlet opening 4, and the water inlet opening 3 and the water outlet opening 4 are both communicated with the filter cavity 2. Unfiltered water flows into the filter chamber 2 from the water inlet opening 3 and deionized water filtered by the filter exits the filter chamber 2 through the water outlet opening 4. In addition, after the filtering agent is failed, the filtering agent can be taken out of the filtering cavity 2 through one or two of the water inlet opening 3 and the water outlet opening 4 for replacement. The sizes of the water inlet opening 3 and the water outlet opening 4 are relatively large, so that the filtering agent can be replaced manually.

For example, in the embodiment, the filter body 1 is cylindrical, the water inlet opening 3 and the water outlet opening 4 are respectively located at two ends of the filter body 1, and the filter cavity 2 is a hollow part in the middle of the filter body 1. The inlet opening 3 and the outlet opening 4 are of identical size and shape, so that the filtering agent can be replaced from either end of the filter body 1 very conveniently by hand without having to be excessively extended into the interior of the filter chamber 2 from one end by hand. In addition, the filter body 1 can be installed in the forward direction or the reverse direction, and the universality is improved.

In order to avoid that the filtering agent leaves the filtering cavity 2 from the water inlet opening 3 and/or the water outlet opening 4 in the normal use process of the filter body 1, the water inlet opening 3 and the water outlet opening 4 are covered by cover bodies. The number of the cover bodies is the same as the number of the openings, and the number of the cover bodies is two in the embodiment, and the two cover bodies are respectively a water inlet cover 5 and a water outlet cover 6. The water inlet cover 5 covers the water inlet opening 3, and the water outlet cover 6 covers the water outlet opening 4. The cover body is provided with a flow passage for water to flow, the corresponding flow passage on the water inlet cover 5 is a water inlet flow passage 7, and the flow passage on the water outlet cover 6 is a water outlet flow passage 8. The water inlet channel 7 is used for feeding untreated water into the filter cavity 2, and the filter cavity 2 conveys deionized water to the outside through the water outlet channel 8. No matter the water outlet flow passage 8 or the water inlet flow passage 7, the flow cross-sectional area is smaller than the water inlet opening 3 and the water outlet opening 4, so that the water inlet flow passage 7 and the water outlet flow passage 8 can play a certain role in intercepting the filtering agent under the condition of not influencing the water flow. In the whole waterway process, the water inlet channel 7 conveys unfiltered water containing metal ions to the filter cavity 2, the metal ions are filtered under the filtering action of the filtering agent in the filter cavity 2, and the deionized water is conveyed outwards through the water outlet channel 8. The water inlet cover 5 seals the edge of the water inlet opening 3, the water inlet cover 5 prevents water from flowing out of the edge of the water inlet opening 3, the water outlet cover 6 seals the edge of the water outlet opening 4, and the water outlet cover 6 prevents water from flowing out of the edge of the water outlet opening 4.

In order to ensure the sealing effect of the water inlet cover 5 and the water outlet cover 6, the inner wall of the water inlet cover 5 and the inner wall of the water outlet cover 6 are both provided with internal threads 9, and the outer walls of the two ends of the filter body 1 are provided with external threads 10. The water inlet cover 5 is in threaded connection with the water inlet opening 3, the water outlet cover 6 is in threaded connection with the water outlet opening 4, the water inlet cover 5 and the water outlet cover 6 are installed in a mode of being sleeved on the outer wall of the end part of the filter body 1, corresponding water can pass through the water inlet opening 3 when flowing into the filter cavity 2 from the water inlet flow passage 7, and the water can pass through the water outlet opening 4 when flowing out of the filter cavity 2 from the water outlet flow passage 8. But the one-way circulation of the waterway is ensured due to the sealing action of the water inlet cover 5 and the water outlet cover 6 on the edges of the water inlet opening 3 and the water outlet opening 4.

In the process that water flows to the water outlet flow channel 8 along the inner wall of the filter body 1, if the water needs to flow to the internal thread 9 on the water outlet cover 6, the water flow needs to be turned by 180 degrees, so that the internal thread 9 of the water outlet cover 6 is not easy to contact with the water, and the service life of the internal thread 9 of the water outlet cover 6 is longer.

In order to improve the filtering effect on water, the fuel cell deionized filter further comprises two filter screens 11, and the two filter screens 11 are respectively arranged at the water inlet opening 3 and the water outlet opening 4. The meshes of the filter screen 11 intercept some impurities with larger sizes. Generally speaking, the aperture size of the mesh on the filter screen 11 is less than 0.3mm, which can meet the practical use requirement.

In this embodiment, the shapes of the water inlet cover 5 and the water outlet cover 6 are completely the same, and the two filter screens 11 are completely the same, so the installation structure at the water inlet opening 3 is taken for illustration.

The shape of the filter screen 11 installed at the water inlet opening 3 matches the shape of the edge of the water inlet opening 3, so that the filter screen 11 can seal the edge of the water inlet opening 3, and all water can be filtered by the filter screen 11. In order to stabilize the relative position of the filter screen 11 and the water inlet opening 3, the inner wall of the water inlet cover 5 protrudes to form a positioning step 13 matched with the edge shape of the filter screen 11, for example, in this embodiment, the filter screen 11 is a circular sheet, and the positioning step 13 is an annular step, and the filter screen 11 is clamped in the middle of the positioning step 13 to realize the positioning of the filter screen on the water inlet cover 5. After the water inlet cover 5 is assembled, the relative positions of the filter screen 11 and the water inlet opening 3 can be fixed, so that the filter screen 11 can fully exert the filtering function.

The positioning step 13 is enclosed to form a cavity 14 communicated with the water inlet flow passage 7, and the cavity 14 is communicated to the filter cavity 2 through the filter screen 11. The space in the water utilization chamber 14 into which the water flows in the water inlet channel 7 can be uniformly dispersed to the whole filter screen 11, so that the filter screen 11 can uniformly perform a filtering function. For example, in the embodiment, the cavity 14 is cylindrical, the water inlet passage 7 is communicated with one end of the cavity 14, the filter 11 is located at the other end of the cavity 14, and the filter 11 is a circular plate.

Preferably, the fuel cell deionized water filter further includes a sealing ring 12, the sealing ring 12 is sleeved at the edge of the filter screen 11, the positioning step 13 presses the sealing ring 12 on the side wall of the filter body 1 at the edge of the water inlet opening 3, and the sealing ring 12 is simultaneously clamped in the middle of the positioning step 13, so as to achieve the purpose that the sealing ring 12 assists the filter screen 11 to seal the edge of the water inlet opening 3. The internal thread 9 is located outside the chamber 14, and the sealing ring 12 obstructs the chamber 14 and the internal thread 9 to prevent water from flowing to the threaded connection of the internal thread 9.

The water inlet cover 5 is a pagoda cover, and the water inlet cover 5 is positioned in a pagoda joint of the water inlet cover 5. The pagoda joint is internally provided with internal threads, can be connected with the silicone tube through the adapter joint and is locked through the hose clamp, and then is installed at low cost.

The relative positions and the assembly relationship among the filter screen 11 at the water outlet 4, the water outlet cover 6 and the water outlet 4 are similar, and therefore, the description is omitted.

In addition, the two filter screens 11 are matched, so that the filtering agent can be fully limited in the filter cavity 2, and the filtering agent is prevented from flowing into the water inlet flow passage 7 and the water outlet flow passage 8.

Example 2

The present embodiment is different from embodiment 1 in that a convex surface 16 is formed on a surface of the filter screen 11 facing the flow passage. Taking the filter screen 11 installed on the water outlet cover 6 as an example, the middle of one side of the filter screen 11 facing the water outlet flow passage 8 protrudes outwards, and a step 15 matched with the positioning step on the water outlet cover 6 is formed on one side of the filter screen 11 facing the water outlet flow passage 8.

In one embodiment, the convex surface 16 of the step 15 facing the outlet channel 8 is conical and convex with respect to the filter body 1, and has a center point which is spaced the least from the outlet of the outlet channel 8 in the axial direction of the filter body 1, and a point on the conical surface which is radially outward from the center point is spaced the more gradually from the outlet of the outlet channel 8 in the axial direction of the filter body 1. The convex surface 16 facilitates the cooling water to flow towards both sides, effectively spreading the cooling water over the entire surface of the filter screen 11, uniformly flowing from the water inlet channel through the filter chamber and discharging from the water outlet channel 8.

Preferably, the convex surface 16 is sunk into the chamber 14, and the distance between the inner wall of the chamber 14 away from the filter body 1 in the axial direction of the filter body 1 and the arc surface 16, namely the length of the chamber 14 is 8-10 mm.

In other embodiments, the convex surface 16 may also be an arc surface, so that the convex surface 16 in this embodiment forms an outward convex spherical surface, which still facilitates the cooling water to flow towards both sides, effectively makes the cooling water spread to the whole surface of the filter screen 11, and flows uniformly through the filter cavity from the water inlet channel and is discharged from the water outlet channel 8.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims

1. A fuel cell deionizing filter, comprising: including filter body and lid, the centre of filter body is provided with the filter chamber of placing the filtering agent, sets up the opening that communicates to the filter chamber on filter body's the lateral wall, and the inner wall of lid is provided with the internal thread, and filter body's outer wall is provided with the external screw thread, internal thread and external screw thread threaded connection to make lid close the opening, set up the runner that supplies water to flow on the lid, the runner communicates to the filter chamber through the opening.

2. The deionizing filter for fuel cell according to claim 1, wherein: the water inlet cover is provided with two openings, the two openings are a water inlet opening and a water outlet opening respectively, the two cover bodies are a water inlet cover and a water outlet cover respectively, a flow passage on the water inlet cover is a water inlet flow passage, a flow passage on the water outlet cover is a water outlet flow passage, the water inlet cover covers the water inlet opening, and the water outlet cover covers the water outlet opening.

3. The deionizing filter for fuel cell according to claim 1, wherein: the fuel cell deionized filter also comprises a filter screen matched with the opening shape, the inner wall of the cover body protrudes to form a positioning step matched with the edge shape of the filter screen, and the filter screen is positioned on the cover body by the positioning step.

4. The deionizing filter for fuel cell according to claim 3, wherein: the positioning steps are closed to form a cavity communicated with the flow channel, and the cavity is communicated to the filter cavity through the filter screen.

5. The deionizing filter for fuel cell according to claim 4, wherein: the cavity is cylindrical, the flow channel is communicated with one end of the cavity, and the filter screen is positioned at the other end of the cavity.

6. The deionizing filter for fuel cell according to claim 5, wherein: one surface of the filter screen facing the flow passage forms a convex surface, and the length of the cavity in the axial direction is 8-10 mm.

7. The deionizing filter for fuel cell according to claim 3, wherein: the fuel cell deionized filter also comprises a sealing ring, the edge of the filter screen is sleeved with the sealing ring, and the positioning step presses the sealing ring on the side wall of the filter body at the opening edge.

8. The deionizing filter for fuel cell according to claim 3, wherein: the aperture size of the filter screen is less than 0.3mm, and the filtering agent accounts for 85-90% of the volume of the filter cavity.

9. The deionizing filter for fuel cell according to claim 1, wherein: the filtering agent is deionized resin.

10. The deionizing filter for fuel cell according to claim 1, wherein: the lid is the pagoda lid, and the runner is located the pagoda of pagoda lid and connects.