Support for the solenoid valve of an air conditioning expansion valve incorporating protection for its connector against brake fluid splashes.

Abstract

Support (1) for holding one or more components in the engine compartment of a motor vehicle, the support (1) comprising a tab (2) which extends in length between a first end (3) and a second end (4), in width between a first edge (5) and a second edge (6), and in thickness between a connecting face (7) and a free face (8), the connecting face (7) having a first portion (9) which extends from the first end (3) towards the second end (4) for securing the tab (2) to a part of the engine compartment, as well as a second portion (10) which extends from the second end (4) towards the first end (3) for securing a component to the tab (2). The support (1) comprises a deflector (15) which extends between a securing end (16) to the leg (2) and a free end (17), and which extends at least partly opposite the second end (4) of the leg (2). Figure for abstract: Fig. 1

Description

Title of the invention: Support for the solenoid valve of an air conditioning expansion valve incorporating protection for its connector against brake fluid splashes. Technical field

[0001] The invention relates to the field of road motor vehicles, and more particularly concerns a support for holding one or more components in an engine compartment. The invention is used, among other things, in motor vehicles of the thermal, hybrid or electric type, in particular those comprising air conditioning. Previous techniques

[0002] There are road vehicles with various sizes and engines. Some are intended more for the transport of people, such as cars or buses, others are intended more for the transport of goods, such as utility vehicles or trucks.

[0003] The engine compartment of a vehicle generally has a contained volume which must nevertheless accommodate numerous components. These are designed and arranged in relation to each other to function optimally, while being subjected to usual constraints, under normal conditions of use of the vehicle. This means that each component is designed to withstand constraints linked to its function(s), as well as external constraints. The latter may come from one or more other components, or from the vehicle's environment. External constraints may be mechanical phenomena such as vibrations, very low or very high temperatures, very low or very high humidity levels, or other.

[0004] It has also sometimes appeared that the components are subjected to unusual stresses, for example in the event of a defect of their own, in the event of a defect of a neighboring component, during maintenance or repair operations of the vehicle, or other.

[0005] It happens that unusual constraints are due to the unwanted action of a fluid. Indeed, to function, certain organs use one or more fluids, which can be gaseous or liquid in nature. Examples include the brake fluid, the engine coolant, the windshield cleaning fluid, the power steering fluid, the fluid for hydraulic suspensions, the gas from an air conditioner, various lubricating or cooling oils, or other. Each liquid can be renewed or have its level topped up. Whatever Whatever the reason, the container may be topped up with liquid. During this operation, liquid may spill or be sprayed onto one or more components of the engine compartment. In some cases, this may result in damage to one or more of the components concerned.

[0006] A risk exists, for example, with the braking device. When filling the brake fluid reservoir, it may happen that drops or a significant quantity of fluid are projected or spread into the engine compartment. In other words, it may happen that components come into contact with brake fluid. However, this is corrosive, in particular because of a level of acidity which can be high. In addition, brake fluid is very fluid, which gives it the ability to infiltrate into narrow passages by gravity or by capillarity. As a result, brake fluid is likely to damage certain components, in particular electrical components. These components may be a connector, a solenoid valve, a motor or an electric pump, an electronic card, or other. Brake fluid can alter or destroy electrical connections, which renders the electrical component non-operational.In other words, the component in question fails, which usually causes more widespread breakdowns. Sometimes the affected vehicle ends up immobilized.

[0007] A specific example is given for a motor vehicle whose engine compartment houses a significant quantity of air conditioning components. It must be taken into account that the car may be designed to drive on the right or left side of the road, depending on the legislation of the country of sale. In most countries, vehicles drive on the right, with the driver on the left. As a result, the components necessary for driving, in particular the braking system, are on the left. In fact, in the engine compartment, the reservoir containing the brake fluid is on the left and rather towards the top. To optimize the reliability of the vehicle, it is generally provided that no electrical component is located in the immediate vicinity or below the reservoir. The idea is to avoid damage to the component by the action of brake fluid which could be projected, or leak, for example when filling the reservoir.This is why the electrical components of the air conditioning, such as the expansion valve solenoid and its connector, are located on the right in the engine compartment.

[0008] However, the vehicle can also be adapted to drive on the left, with right-hand drive components. In this case, the braking device is on the right. For cost optimization reasons, the layout of the majority of the components is the same for right-hand drive and left-hand drive. As a result, for the vehicle driving on the left, the brake fluid reservoir is located substantially above the air conditioning expansion valve solenoid valve and its connector. It There is therefore a risk that these electrical components could be damaged by splashes or leaks of brake fluid. In other words, there is a risk of electrical failure on the car, in relation to the braking system. Statement of the invention

[0009] The invention seeks to overcome the aforementioned drawbacks and has the general aim of reducing, or even completely eliminating, the risk of failure of a component, in particular an electrical component, the source of which would be a liquid. The invention aims in particular to avoid damage to electrical components which could be caused by the action of brake fluid. In particular, the invention aims to protect the solenoid valve of the expansion valve of an air conditioning system, and its connector, from the action of brake fluid. Another aim of the invention is to improve the protection of the components without increasing the manufacturing costs of the vehicle.

[0010] To this end, the invention provides a support for holding one or more components in the engine compartment of a motor vehicle, the support comprising a tab which extends in length between a first end and a second end, in width between a first edge and a second edge, and in thickness between a connecting face and a free face, the connecting face having a first portion which extends from the first end towards the second end for securing the tab to a part of the engine compartment, as well as a second portion which extends from the second end towards the first end for securing a component to the tab. The support comprises a deflector which extends between an end for securing to the tab and a free end, and which extends at least partly opposite the second end of the tab.

[0011] The deflector constitutes an obstacle to possible projections or flows of liquids. This is the case, for example, for right-hand drive cars, when the brake fluid reservoir is located near, or even above, the air conditioning expansion valve solenoid valve and its connector. The deflector can receive liquid and thereby preserve the solenoid valve and the connector. As a result, each component protected by the deflector retains its integrity, in the sense that it does not become impregnated with liquid. In other words, each component remains dry. A resulting advantage is greater reliability of the components, particularly those of an electrical nature. Indeed, the impregnation of such a component with liquid, such as brake fluid, is likely to alter its properties, particularly with regard to the ability of the connections to conduct electric current.More broadly, the greater reliability of the components brings greater reliability of the vehicle. A subsequent advantage linked to the presence of the deflector is the reduction of maintenance costs.

[0012] In one embodiment, the baffle defines an open cavity at the second end of the tab. The baffle protects the component(s) secured to the tab, while allowing them to operate under normal conditions. For example, the baffle allows the protected components to remain in a stable thermal environment, without overheating. This contributes to reliability.

[0013] As regards its structure more precisely, the deflector successively comprises a spacer, a recess and a cap, the spacer extending between the end for securing to the tab and the recess, the cap extending between the recess and the free end. In side view, the deflector therefore has the general shape of a C, which is synonymous with simplicity. An advantage which results from this is ease of manufacture.

[0014] For example, the recess is parallel to the lug and the gap from the lug, and the cap is parallel to the spacer. Thus, several segments of the deflector are parallel to each other. This facilitates installation in the engine compartment.

[0015] In a non-limiting manner, the free end of the deflector is located away from a plane which contains the tab, on the side of the connecting face. This optimizes the protection of the component secured to the tab.

[0016] Still in a non-limiting manner, the second end of the tab merges with the end for securing the deflector to the tab. In other words, the deflector and the tab extend one another. This structure reduces the manufacturing cost of the support, and facilitates its installation in the engine compartment.

[0017] The tab has holes passing through it. These holes allow the passage of elements for securing the tab to other parts, such as a side member of the engine compartment, or the passage of elements for securing one or more components to the tab. The elements in question may be screws, studs, or equivalent means.

[0018] The deflector comprises pierced tabs, and the cap has at least one hole passing through it. The holes in the tabs and the cap also allow the passage of securing elements to be held in the engine compartment or to hold other components in addition to the one or ones already secured to the bracket. This is in fact to increase the holding capacity of the support, in quantitative terms.

[0019] The bracket and the deflector form a single piece, which can be made with any suitable material such as metal, a metal alloy, a synthetic material. This structure reduces the manufacturing cost of the support, and facilitates its installation in the engine compartment.

[0020] The invention also relates to an assembly comprising a support and an electrical component.

[0021] The invention also relates to a vehicle provided with a support composed of a tab and a deflector. Brief description of the drawings

[0022] Other aims, characteristics and advantages of the invention will appear on reading the following description, given solely by way of non-limiting example and made with reference to the appended drawings in which:

[0023] - [Fig. 1] is a perspective view of a support provided for holding one or several components in the engine compartment of a motor vehicle, according to one embodiment of the invention,

[0024] - [Fig.2] is a perspective view of the support of [Fig.l], in a case where it is located in the engine compartment under a reservoir of brake fluid,

[0025] - [Fig.3] is a side view of the support of [Fig.l], for the same implantation as that of [Fig.2],

[0026] - [Fig.4] is a view similar to [Fig.2], with more components,

[0027] - [Fig.5] is a view from another perspective of the support of [Fig.l], for the same implantation than that of [Fig.2] to [Fig.4]. Detailed description

[0028] In [Fig.l], a support 1 is shown for holding one or more components in the engine compartment of a motor vehicle.

[0029] The support 1 comprises a tab 2 which extends in length between a first end 3 and a second end 4, in width between a first edge 5 and a second edge 6, and in thickness between a connecting face 7 and a free face 8.

[0030] The tab 2 has the general shape of a plate. The connecting face 7 has a first portion 9 which extends from the first end 3 towards the second end 4 for securing the tab 2 to a part of the engine compartment. The connecting face 7 also has a second portion 10 which extends from the second end 4 towards the first end 3 for securing a component to the tab 2. The securing is a stable connection which can be rigid or, alternatively, have a certain flexibility for example to dampen vibrations. Consequently, the tab 2 maintains said component in a determined position in the engine compartment.

[0031] The support 1 also comprises a deflector 15 which extends between a securing end 16 and a free end 17, and which extends at least partly opposite the second end 4 of the leg 2. The deflector 15 protects the component secured to the leg 2, as will be seen in more detail later. Thanks to the deflector 15, the component retains at least a large part, if not all, of its ability to fulfill its function(s). Among the advantages which result therefrom, we can cite a longer life of the component, a reduction in maintenance costs, better reliability of the vehicle equipped with support 1.

[0032] In a non-limiting manner, the deflector 15 successively comprises a spacer 18, a recess 19 and a cap 20. The spacer 18 extends between the end 16 for securing the tab 2 and the recess 19, and the cap 20 extends between the recess 19 and the free end 17. The recess 19 is here parallel to the tab 2 and away from the tab. The cap 20 is parallel to the spacer 18, and extends on either side of a plane which contains the lug 2. The deflector 15 delimits an open cavity 21 at the level of the second end 4 of the lug 2. In side view, the deflector 15 has the general shape of a C. It will be seen more clearly later that this structure facilitates the installation of the support 1 in the engine compartment.

[0033] The embodiment described provides that the second end 4 of the tab 2 merges with the securing end 16 of the deflector 15 to the tab. In fact, the deflector 15 and the tab 2 extend one another to form the support 1. In other words, the support 1 is a single piece. For example, the support 1 can be made of a metallic material cut and folded by any suitable technique. It can be steel, an aluminum alloy, or other. A metallic material conducts heat and electricity. The support 1 can therefore contribute to cooling the carried component or to providing grounding if the component uses electricity. It is further specified that it is possible to provide a support made of a synthetic material which, if necessary, can be made conductive by incorporating conductive particles.

[0034] By observing [Fig. 1] in more detail, it can be seen that the tab 2 has an orifice 25 which passes through its thickness between the connecting face 7 and the free face 8. The orifice 25 also opens at the first end 3. The cap 20 of the deflector 15 is extended by an end tab 26. In a non-limiting manner, the end tab 26 is located at the free end of the cap 20, and is parallel to the tab 2. The end tab 26 has an orifice 27 which passes through it in the thickness. The orifice 27 also opens at an edge of the tab 26. The orifice 25 of the tab 2 and the orifice 27 of the tab 26 each allow the support 1 to be secured in the engine compartment. For example, whether for tab 2 or for tongue 26, a filter pad not visible in [Fig.l] can be secured to a surface of the engine compartment and partly housed in orifice 25, 27.

[0035] It can also be seen that the tab 2 has two additional holes 28, 29 for a component to be secured to it. For example, one hole 28 is a round hole, while the other hole 29 is an oblong hole. The holes 28, 29 each pass through the tab 2 in its thickness. The orifices 28, 29 are located between the first end 3 and the second end 4, in the second portion 10 of the connecting face 7.

[0036] The above makes it possible to understand how the support 1 is able to hold a component in the engine compartment. It is nevertheless provided, in addition, that the support 1 holds additional components or component parts.

[0037] This is why the cap 20 has an orifice 30, for example of oblong shape. The orifice 30 passes through the cap 20 in its thickness. It will be seen later that the orifice 30 participates in holding electrical wires.

[0038] It can also be seen that the recess 19 is extended by a first lateral tab 31 and by a second lateral tab 32. The tabs 31, 32 are each located at a different edge of the recess 19. The first tab 31 is crossed by an orifice 33 in its thickness, and the second tab 32 is also crossed by an orifice 34 in its thickness. Each orifice 33, 34 has, for example, an oblong shape. It will be seen later that the tabs 31, 32 participate in holding a pipe.

[0039] Still according to the embodiment presented, the tab 2, the deflector 15 and the tabs 26, 31, 32 constitute a single piece.

[0040] The cooperation of the support 1 with other components in the engine compartment will now be described.

[0041] First of all, [Fig. 2] shows that the support 1 is arranged under the brake fluid reservoir 40 of a 4L braking device. The support 1 is reversibly secured, by any appropriate means, to a side member 42 of the vehicle. A bundle 43 of electrical wires passes over the cap 20 of the deflector 15, opposite the orifice 30. A subdivision 44 of the bundle of electrical wires 43 joins a component secured to the support 1 and not visible in [Fig. 2].

[0042] A view from another angle is given by [Fig.3]. Here the support 1 is shown on the free face side 8 of the lug 2. The support 1 is secured to the side member 42 by a means consisting of an elastic pad 45, such as a silentbloc or any equivalent. This means 45 dampens vibrations, which improves the reliability of the component(s) held. The elastic pad 45 passes through the orifice 25 of the lug 2, at its first end 3. In the same spirit, the support 1 is secured to another surface not shown of the engine compartment, by a means consisting of an elastic pad 46, such as a silentbloc or any equivalent, again to dampen vibrations. The elastic pad 46 passes through the orifice 27 of the terminal tab 26 of the deflector 15, on the cap 20.

[0043] [Fig. 4] further shows the holding of a pipe 47 intended to convey a heat-transfer liquid, such as water or the like. For this purpose, a securing means 48 is secured to the tab 32 of the support 1. For example, the securing means 48 is a collar fitted into the orifice 33 of the tab 32.

[0044] Finally, [Fig.5] shows a component 49 reversibly secured to the support 1, more precisely to the tab 2, on the side of the connecting face 7. The component masks the tab.

[0045] - According to the embodiment presented, component 49 is a solenoid valve air conditioning, that is to say an electromechanical component. In the broad sense, an electromechanical component is an electrical component. A connector 50 connects the solenoid valve 49 to the electrical wire harness 43 by the part or subdivision 44. The connecting face 7 is in contact with the side member 42 by the first portion 9, and in contact with the component or solenoid valve 49 by the second portion 10. If we consider the vehicle in normal conditions of use, with the wheels in contact with the ground, the first end 3 of the lug 2 of the support 1 is located downwards, as opposed to the cap 20 of the deflector 15 which is located upwards. As the support 1 is arranged substantially below the brake fluid reservoir 40, the cap 20 protects the solenoid valve 49 and the electrical connector 50 from possible projections or flows of brake fluid.Since bracket 1 is a single piece, the reliability of the solenoid valve and connector is improved at a very low cost.

[0046] The invention is not limited to the embodiment described, and includes all equivalents which may fall within the scope of the claims which follow.

[0047] In particular, various variant shapes may be provided for the support 1. For example, the part which extends the leg 2 from the second end 4 could be formed of curvilinear segments, or comprise straight segments and curvilinear segments. Again, the end 16 for securing the deflector 15 to the leg 2 could be located elsewhere than at the second end 4. It may also be provided that the deflector 15 and the leg 2 are secured to each other in a removable manner, with or without the action of a tool. The leg 2 could be non-planar, and resemble something other than a plate.

Claims

Claims

1. Support (1) for holding one or more components in the engine compartment of a motor vehicle, the support (1) comprising a tab (2) which extends in length between a first end (3) and a second end (4), in width between a first edge (5) and a second edge (6), and in thickness between a connecting face (7) and a free face (8), the connecting face (7) having a first portion (9) which extends from the first end (3) towards the second end (4) for securing the tab (2) to a part of the engine compartment, as well as a second portion (10) which extends from the second end (4) towards the first end (3) for securing a component to the tab (2), the support (1) comprising a deflector (15) which extends between a securing end (16) to the tab (2) and a free end (17),characterized in that the deflector (15) extends at least partly opposite the second end (4) of the tab (2).,

2. Support (1) according to claim 1, in which the deflector (15) delimits an open cavity (21) at the second end (4) of the leg (2).

3. Support (1) according to claim 1 or 2, in which the deflector (15) successively comprises a spacer (18), a step (19) and a cap (20), the spacer (18) extending between the end (16) for securing to the leg (2) and the step (19), the cap (20) extending between the step (19) and the free end (17).

4. Support (1) according to claim 3, in which the step (19) is parallel to the leg (2) and at a distance from the leg (2), and in which the cap (20) is parallel to the spacer (18).

5. Support (1) according to any one of claims 1 to 4, in which the free end (17) of the deflector (15) is located away from a plane which contains the tab (2), on the side of the connecting face (7).

6. Support (1) according to any one of claims 1 to 5, in which the second end (3) of the leg (2) merges with the securing end (16) of the deflector (15) to the leg (2).

7. Support (1) according to any one of claims 1 to 6, for which the leg (2) has orifices (25, 28, 29) which pass through it.

8. 10 Support (1) according to claim 7, for which the deflector (15) comprises pierced tabs (26, 31, 32), and for which the cap (20) has at least one orifice (30) which passes through it.

9. Support (1) according to any one of claims 1 to 8, for which the tab (2) and the deflector (15) form a single piece.

10. An assembly comprising a support (1) according to any one of claims 1 to 9 and an electrical component (49).

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